WebKit Bugzilla
Attachment 339004 Details for
Bug 185048
: StringBuilder is fallible
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[patch]
patch
0001-Teach-StringBuilder-that-it-is-fallible.patch (text/plain), 450.09 KB, created by
JF Bastien
on 2018-04-27 10:46:41 PDT
(
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Description:
patch
Filename:
MIME Type:
Creator:
JF Bastien
Created:
2018-04-27 10:46:41 PDT
Size:
450.09 KB
patch
obsolete
>From 0ec1688af652531de9886afcf2d115b52ef5990a Mon Sep 17 00:00:00 2001 >From: JF Bastien <jfbastien@apple.com> >Date: Wed, 25 Apr 2018 21:50:24 -0700 >Subject: [PATCH] Teach StringBuilder that it is fallible > >--- > Source/JavaScriptCore/API/JSContextRef.cpp | 4 +- > .../API/tests/ExecutionTimeLimitTest.cpp | 310 +++++++------ > .../API/tests/PingPongStackOverflowTest.cpp | 9 +- > Source/JavaScriptCore/ChangeLog | 95 ++++ > .../dfg/DFGStrengthReductionPhase.cpp | 23 +- > Source/JavaScriptCore/heap/HeapSnapshotBuilder.cpp | 4 +- > Source/JavaScriptCore/inspector/ConsoleMessage.cpp | 13 +- > .../inspector/ContentSearchUtilities.cpp | 4 +- > Source/JavaScriptCore/interpreter/Interpreter.cpp | 4 +- > Source/JavaScriptCore/interpreter/StackVisitor.cpp | 4 +- > Source/JavaScriptCore/jsc.cpp | 11 +- > Source/JavaScriptCore/runtime/ConfigFile.cpp | 9 +- > Source/JavaScriptCore/runtime/ConsoleClient.cpp | 15 +- > Source/JavaScriptCore/runtime/DateConversion.cpp | 4 +- > Source/JavaScriptCore/runtime/ErrorInstance.cpp | 4 +- > Source/JavaScriptCore/runtime/ExceptionHelpers.cpp | 4 +- > .../JavaScriptCore/runtime/FunctionConstructor.cpp | 24 +- > .../JavaScriptCore/runtime/IntlDateTimeFormat.cpp | 6 +- > Source/JavaScriptCore/runtime/IntlObject.cpp | 18 +- > .../runtime/JSGlobalObjectFunctions.cpp | 21 +- > Source/JavaScriptCore/runtime/JSONObject.cpp | 16 +- > Source/JavaScriptCore/runtime/LiteralParser.cpp | 10 +- > Source/JavaScriptCore/runtime/Options.cpp | 10 +- > Source/JavaScriptCore/runtime/RegExpPrototype.cpp | 4 +- > Source/JavaScriptCore/runtime/SamplingProfiler.cpp | 4 +- > Source/JavaScriptCore/runtime/StackFrame.cpp | 4 +- > .../JavaScriptCore/runtime/StringConstructor.cpp | 4 +- > Source/JavaScriptCore/runtime/StringPrototype.cpp | 4 +- > Source/JavaScriptCore/runtime/TypeProfiler.cpp | 6 +- > Source/JavaScriptCore/runtime/TypeSet.cpp | 23 +- > Source/JavaScriptCore/testRegExp.cpp | 20 +- > Source/JavaScriptCore/tools/FunctionOverrides.cpp | 9 +- > Source/JavaScriptCore/wasm/WasmBBQPlan.cpp | 7 +- > Source/JavaScriptCore/yarr/YarrParser.h | 30 +- > Source/WTF/ChangeLog | 143 ++++++ > Source/WTF/wtf/Assertions.cpp | 8 +- > Source/WTF/wtf/DateMath.cpp | 4 +- > Source/WTF/wtf/JSONValues.cpp | 11 +- > Source/WTF/wtf/Logger.h | 11 +- > Source/WTF/wtf/MediaTime.cpp | 4 +- > Source/WTF/wtf/UUID.cpp | 4 +- > Source/WTF/wtf/text/StringBuilder.cpp | 239 ++++++---- > Source/WTF/wtf/text/StringBuilder.h | 261 +++++++---- > Source/WTF/wtf/text/StringBuilderJSON.cpp | 25 +- > Source/WTF/wtf/text/StringImpl.cpp | 34 +- > Source/WTF/wtf/text/StringImpl.h | 18 +- > Source/WTF/wtf/text/TextStream.cpp | 8 +- > Source/WebCore/ChangeLog | 510 +++++++++++++++++++++ > .../Modules/applepay/cocoa/PaymentContactCocoa.mm | 5 +- > .../WebCore/Modules/entriesapi/DOMFileSystem.cpp | 4 +- > Source/WebCore/Modules/geolocation/Geolocation.cpp | 5 +- > Source/WebCore/Modules/indexeddb/IDBKeyData.cpp | 15 +- > Source/WebCore/Modules/indexeddb/IDBKeyPath.cpp | 4 +- > .../Modules/indexeddb/server/IndexValueStore.cpp | 4 +- > .../Modules/indexeddb/server/SQLiteIDBCursor.cpp | 8 +- > .../Modules/indexeddb/shared/IDBDatabaseInfo.cpp | 4 +- > .../indexeddb/shared/IDBObjectStoreInfo.cpp | 4 +- > .../mediasession/WebMediaSessionManager.cpp | 8 +- > .../Modules/mediastream/PeerConnectionBackend.cpp | 8 +- > .../Modules/plugins/YouTubePluginReplacement.cpp | 4 +- > .../Modules/webdatabase/DatabaseTracker.cpp | 4 +- > Source/WebCore/Modules/websockets/WebSocket.cpp | 8 +- > .../websockets/WebSocketExtensionDispatcher.cpp | 8 +- > .../Modules/websockets/WebSocketHandshake.cpp | 23 +- > .../accessibility/AccessibilityNodeObject.cpp | 18 +- > .../WebCore/accessibility/AccessibilityObject.cpp | 10 +- > .../mac/WebAccessibilityObjectWrapperMac.mm | 11 +- > Source/WebCore/bindings/js/JSDOMConvertStrings.cpp | 4 +- > .../WebCore/bindings/js/JSDOMExceptionHandling.cpp | 16 +- > .../contentextensions/CombinedURLFilters.cpp | 4 +- > .../WebCore/contentextensions/ContentExtension.cpp | 7 +- > .../contentextensions/ContentExtensionCompiler.cpp | 5 +- > .../ContentExtensionStyleSheet.cpp | 5 +- > Source/WebCore/contentextensions/Term.h | 8 +- > .../WebCore/css/CSSAnimationTriggerScrollValue.cpp | 4 +- > Source/WebCore/css/CSSBasicShapes.cpp | 20 +- > Source/WebCore/css/CSSCalculationValue.cpp | 8 +- > Source/WebCore/css/CSSComputedStyleDeclaration.cpp | 4 +- > Source/WebCore/css/CSSCrossfadeValue.cpp | 4 +- > Source/WebCore/css/CSSCursorImageValue.cpp | 4 +- > Source/WebCore/css/CSSCustomIdentValue.cpp | 4 +- > Source/WebCore/css/CSSFilterImageValue.cpp | 4 +- > Source/WebCore/css/CSSFontFaceRule.cpp | 4 +- > Source/WebCore/css/CSSFontFaceSrcValue.cpp | 4 +- > Source/WebCore/css/CSSFontFeatureValue.cpp | 4 +- > Source/WebCore/css/CSSFontStyleRangeValue.cpp | 4 +- > Source/WebCore/css/CSSFontStyleValue.cpp | 4 +- > Source/WebCore/css/CSSFontValue.cpp | 4 +- > Source/WebCore/css/CSSFontVariationValue.cpp | 4 +- > Source/WebCore/css/CSSFunctionValue.cpp | 4 +- > Source/WebCore/css/CSSGradientValue.cpp | 12 +- > Source/WebCore/css/CSSGridAutoRepeatValue.cpp | 4 +- > Source/WebCore/css/CSSGridTemplateAreasValue.cpp | 4 +- > Source/WebCore/css/CSSImageSetValue.cpp | 4 +- > Source/WebCore/css/CSSImportRule.cpp | 4 +- > Source/WebCore/css/CSSKeyframeRule.cpp | 8 +- > Source/WebCore/css/CSSKeyframesRule.cpp | 4 +- > Source/WebCore/css/CSSLineBoxContainValue.cpp | 4 +- > Source/WebCore/css/CSSMarkup.cpp | 8 +- > Source/WebCore/css/CSSMediaRule.cpp | 4 +- > Source/WebCore/css/CSSNamespaceRule.cpp | 4 +- > Source/WebCore/css/CSSPageRule.cpp | 8 +- > Source/WebCore/css/CSSPrimitiveValue.cpp | 12 +- > Source/WebCore/css/CSSPropertySourceData.cpp | 4 +- > Source/WebCore/css/CSSSelector.cpp | 17 +- > Source/WebCore/css/CSSSelectorList.cpp | 4 +- > Source/WebCore/css/CSSShadowValue.cpp | 4 +- > Source/WebCore/css/CSSStyleRule.cpp | 4 +- > Source/WebCore/css/CSSStyleSheet.cpp | 9 +- > Source/WebCore/css/CSSSupportsRule.cpp | 4 +- > Source/WebCore/css/CSSTimingFunctionValue.cpp | 16 +- > Source/WebCore/css/CSSValueList.cpp | 4 +- > Source/WebCore/css/CSSVariableData.cpp | 5 +- > Source/WebCore/css/DOMCSSNamespace.cpp | 4 +- > Source/WebCore/css/DOMMatrixReadOnly.cpp | 4 +- > Source/WebCore/css/DeprecatedCSSOMValueList.cpp | 4 +- > Source/WebCore/css/FontFace.cpp | 12 +- > Source/WebCore/css/MediaList.cpp | 4 +- > Source/WebCore/css/MediaQuery.cpp | 4 +- > Source/WebCore/css/MediaQueryExpression.cpp | 5 +- > Source/WebCore/css/Rect.h | 4 +- > Source/WebCore/css/StyleProperties.cpp | 30 +- > Source/WebCore/css/WebKitCSSMatrix.cpp | 4 +- > Source/WebCore/css/WebKitCSSViewportRule.cpp | 4 +- > Source/WebCore/css/parser/CSSParser.cpp | 11 +- > Source/WebCore/css/parser/CSSParserToken.cpp | 87 ++-- > Source/WebCore/css/parser/CSSParserTokenRange.cpp | 4 +- > Source/WebCore/css/parser/CSSPropertyParser.cpp | 27 +- > Source/WebCore/css/parser/CSSTokenizer.cpp | 38 +- > Source/WebCore/dom/DatasetDOMStringMap.cpp | 4 +- > Source/WebCore/dom/Element.cpp | 5 +- > Source/WebCore/dom/Node.cpp | 22 +- > Source/WebCore/dom/Position.cpp | 5 +- > Source/WebCore/dom/Range.cpp | 9 +- > Source/WebCore/dom/ScriptedAnimationController.cpp | 4 +- > Source/WebCore/dom/SecurityContext.cpp | 5 +- > Source/WebCore/dom/Text.cpp | 9 +- > Source/WebCore/dom/TextNodeTraversal.cpp | 8 +- > Source/WebCore/editing/ApplyStyleCommand.cpp | 5 +- > Source/WebCore/editing/Editing.cpp | 4 +- > Source/WebCore/editing/HTMLInterchange.cpp | 4 +- > Source/WebCore/editing/MarkupAccumulator.cpp | 17 +- > Source/WebCore/editing/TextIterator.cpp | 11 +- > Source/WebCore/editing/TypingCommand.cpp | 4 +- > Source/WebCore/editing/VisibleSelection.cpp | 5 +- > Source/WebCore/editing/cocoa/DataDetection.mm | 8 +- > Source/WebCore/editing/cocoa/HTMLConverter.mm | 5 +- > Source/WebCore/editing/ios/EditorIOS.mm | 5 +- > Source/WebCore/editing/markup.cpp | 27 +- > Source/WebCore/fileapi/FileReaderLoader.cpp | 24 +- > Source/WebCore/html/DOMTokenList.cpp | 9 +- > Source/WebCore/html/EmailInputType.cpp | 4 +- > Source/WebCore/html/FileInputType.cpp | 4 +- > Source/WebCore/html/FormController.cpp | 4 +- > Source/WebCore/html/HTMLAnchorElement.cpp | 12 +- > Source/WebCore/html/HTMLCanvasElement.cpp | 21 +- > Source/WebCore/html/HTMLFontElement.cpp | 7 +- > Source/WebCore/html/HTMLImageElement.cpp | 4 +- > Source/WebCore/html/HTMLMediaElement.cpp | 9 +- > Source/WebCore/html/HTMLOptionElement.cpp | 4 +- > Source/WebCore/html/HTMLTextFormControlElement.cpp | 12 +- > Source/WebCore/html/MediaDocument.cpp | 5 +- > Source/WebCore/html/MediaElementSession.cpp | 4 +- > Source/WebCore/html/MediaFragmentURIParser.cpp | 8 +- > Source/WebCore/html/TypeAhead.cpp | 14 +- > .../html/canvas/CanvasRenderingContext2D.cpp | 4 +- > .../html/canvas/CanvasRenderingContext2DBase.cpp | 7 +- > .../html/canvas/WebGLRenderingContextBase.cpp | 4 +- > Source/WebCore/html/parser/HTMLSourceTracker.cpp | 7 +- > Source/WebCore/html/parser/HTMLTokenizer.cpp | 12 +- > Source/WebCore/html/parser/HTMLTreeBuilder.cpp | 27 +- > Source/WebCore/html/parser/XSSAuditorDelegate.cpp | 4 +- > Source/WebCore/html/track/BufferedLineReader.cpp | 8 +- > Source/WebCore/html/track/TrackBase.cpp | 5 +- > Source/WebCore/html/track/VTTCue.cpp | 6 +- > Source/WebCore/html/track/WebVTTParser.cpp | 5 +- > Source/WebCore/html/track/WebVTTTokenizer.cpp | 63 ++- > Source/WebCore/inspector/InspectorStyleSheet.cpp | 17 +- > .../agents/InspectorApplicationCacheAgent.cpp | 13 +- > .../inspector/agents/InspectorNetworkAgent.cpp | 7 +- > .../WebCore/inspector/agents/WebConsoleAgent.cpp | 5 +- > Source/WebCore/loader/CrossOriginAccessControl.cpp | 8 +- > Source/WebCore/loader/ResourceLoadStatistics.cpp | 4 +- > .../loader/appcache/ApplicationCacheStorage.cpp | 25 +- > .../WebCore/loader/archive/cf/LegacyWebArchive.cpp | 25 +- > .../WebCore/loader/archive/mhtml/MHTMLArchive.cpp | 8 +- > .../WebCore/page/CaptionUserPreferencesMediaAF.cpp | 64 ++- > Source/WebCore/page/Frame.cpp | 4 +- > Source/WebCore/page/FrameTree.cpp | 4 +- > Source/WebCore/page/FrameView.cpp | 5 +- > Source/WebCore/page/PageSerializer.cpp | 7 +- > Source/WebCore/page/PerformanceLoggingClient.cpp | 4 +- > Source/WebCore/page/SecurityOriginData.cpp | 4 +- > Source/WebCore/page/WheelEventTestTrigger.cpp | 5 +- > Source/WebCore/page/csp/ContentSecurityPolicy.cpp | 9 +- > .../page/scrolling/AxisScrollSnapOffsets.cpp | 8 +- > .../page/scrolling/ScrollingCoordinator.cpp | 4 +- > Source/WebCore/platform/Decimal.cpp | 12 +- > Source/WebCore/platform/FileSystem.cpp | 8 +- > Source/WebCore/platform/PODInterval.h | 4 +- > Source/WebCore/platform/PODRedBlackTree.h | 5 +- > Source/WebCore/platform/URL.cpp | 18 +- > .../WebCore/platform/animation/TimingFunction.cpp | 5 +- > Source/WebCore/platform/glib/FileSystemGlib.cpp | 4 +- > Source/WebCore/platform/graphics/Color.cpp | 8 +- > Source/WebCore/platform/graphics/ExtendedColor.cpp | 4 +- > Source/WebCore/platform/graphics/FontCascade.cpp | 4 +- > .../platform/graphics/FontTaggedSettings.cpp | 5 +- > Source/WebCore/platform/graphics/GraphicsLayer.cpp | 4 +- > .../avfoundation/InbandTextTrackPrivateAVF.cpp | 13 +- > .../platform/graphics/ca/TileController.cpp | 5 +- > Source/WebCore/platform/graphics/ca/TileGrid.cpp | 4 +- > .../graphics/ca/win/PlatformCALayerWin.cpp | 4 +- > .../platform/graphics/cv/VideoTextureCopierCV.cpp | 10 +- > .../opengl/GraphicsContext3DOpenGLCommon.cpp | 11 +- > .../graphics/texmap/TextureMapperShaderProgram.cpp | 15 +- > Source/WebCore/platform/mac/PasteboardMac.mm | 4 +- > Source/WebCore/platform/mac/StringUtilities.mm | 6 +- > .../WebCore/platform/mock/ScrollAnimatorMock.cpp | 15 +- > .../WebCore/platform/mock/mediasource/MockBox.cpp | 9 +- > Source/WebCore/platform/network/HTTPParsers.cpp | 4 +- > Source/WebCore/platform/network/ProxyServer.cpp | 4 +- > .../WebCore/platform/network/mac/CookieJarMac.mm | 5 +- > Source/WebCore/platform/posix/FileSystemPOSIX.cpp | 4 +- > .../WebCore/platform/text/DecodeEscapeSequences.h | 8 +- > Source/WebCore/platform/text/PlatformLocale.cpp | 12 +- > Source/WebCore/platform/text/SegmentedString.cpp | 4 +- > Source/WebCore/platform/text/TextCodecICU.cpp | 13 +- > .../WebCore/platform/text/TextCodecUserDefined.cpp | 4 +- > .../WebCore/platform/win/ClipboardUtilitiesWin.cpp | 5 +- > Source/WebCore/platform/win/UserAgentWin.cpp | 4 +- > Source/WebCore/plugins/DOMMimeType.cpp | 4 +- > Source/WebCore/rendering/RenderLayer.cpp | 4 +- > Source/WebCore/rendering/RenderLayerCompositor.cpp | 5 +- > Source/WebCore/rendering/RenderListMarker.cpp | 9 +- > Source/WebCore/rendering/RenderText.cpp | 23 +- > Source/WebCore/rendering/RenderThemeIOS.mm | 10 +- > Source/WebCore/rendering/RenderThemeWin.cpp | 5 +- > Source/WebCore/rendering/RenderTreeAsText.cpp | 8 +- > .../rendering/mathml/RenderMathMLFenced.cpp | 5 +- > .../rendering/updating/RenderTreeBuilderMathML.cpp | 5 +- > Source/WebCore/svg/SVGLengthListValues.cpp | 4 +- > Source/WebCore/svg/SVGNumberListValues.cpp | 4 +- > Source/WebCore/svg/SVGPathStringBuilder.cpp | 4 +- > Source/WebCore/svg/SVGPathUtilities.cpp | 4 +- > Source/WebCore/svg/SVGPointListValues.cpp | 4 +- > Source/WebCore/svg/SVGStringListValues.cpp | 4 +- > Source/WebCore/svg/SVGTransformListValues.cpp | 4 +- > Source/WebCore/svg/SVGTransformValue.cpp | 20 +- > Source/WebCore/svg/properties/SVGPropertyTraits.h | 8 +- > Source/WebCore/testing/Internals.cpp | 64 +-- > Source/WebCore/testing/MockPageOverlayClient.cpp | 10 +- > Source/WebCore/workers/WorkerScriptLoader.cpp | 4 +- > Source/WebCore/xml/XMLErrors.cpp | 7 +- > Source/WebCore/xml/XMLHttpRequest.cpp | 15 +- > Source/WebCore/xml/XMLHttpRequest.h | 7 +- > Source/WebCore/xml/XPathFunctions.cpp | 21 +- > Source/WebCore/xml/XSLTProcessorLibxslt.cpp | 14 +- > .../xml/parser/CharacterReferenceParserInlines.h | 5 +- > Source/WebDriver/SessionHost.cpp | 5 +- > Source/WebKit/ChangeLog | 49 ++ > .../NetworkProcess/cache/CacheStorageEngine.cpp | 4 +- > .../WebKit/NetworkProcess/cache/NetworkCache.cpp | 18 +- > .../NetworkProcess/cache/NetworkCacheKey.cpp | 4 +- > .../capture/NetworkCaptureManager.cpp | 6 +- > .../Shared/Databases/IndexedDB/IDBUtilities.cpp | 4 +- > Source/WebKit/Shared/Gamepad/GamepadData.cpp | 4 +- > .../Netscape/unix/NetscapePluginModuleUnix.cpp | 4 +- > Source/WebKit/Shared/WebMemorySampler.cpp | 7 +- > Source/WebKit/UIProcess/API/APIUserScript.cpp | 4 +- > Source/WebKit/UIProcess/API/APIUserStyleSheet.cpp | 4 +- > .../UIProcess/Cocoa/ViewGestureController.cpp | 6 +- > Source/WebKit/UIProcess/WebBackForwardList.cpp | 4 +- > Source/WebKit/UIProcess/WebProcessPool.cpp | 5 +- > Source/WebKit/UIProcess/WebProcessProxy.cpp | 5 +- > .../UIProcess/WebResourceLoadStatisticsStore.cpp | 20 +- > .../WebResourceLoadStatisticsTelemetry.cpp | 33 +- > .../Plugins/Netscape/NetscapeBrowserFuncs.cpp | 4 +- > Source/WebKit/WebProcess/Plugins/PluginView.cpp | 4 +- > Source/WebKit/WebProcess/WebPage/WebFrame.cpp | 4 +- > Source/WebKitLegacy/mac/ChangeLog | 12 + > .../mac/WebView/WebHTMLRepresentation.mm | 5 +- > Tools/ChangeLog | 78 ++++ > Tools/TestWebKitAPI/Tests/WTF/CrossThreadTask.cpp | 4 +- > Tools/TestWebKitAPI/Tests/WTF/StringBuilder.cpp | 92 ++-- > Tools/TestWebKitAPI/Tests/WTF/StringView.cpp | 80 ++-- > .../Tests/WebCore/ContentExtensions.cpp | 86 ++-- > Tools/TestWebKitAPI/Tests/WebCore/FileMonitor.cpp | 37 +- > Tools/TestWebKitAPI/Tests/WebCore/Logging.cpp | 30 +- > Tools/TestWebKitAPI/Tests/WebCore/TextCodec.cpp | 4 +- > Tools/TestWebKitAPI/WTFStringUtilities.h | 4 +- > .../InjectedBundle/InjectedBundlePage.cpp | 196 ++++++-- > .../WebKitTestRunner/InjectedBundle/TestRunner.cpp | 18 +- > Tools/WebKitTestRunner/TestController.cpp | 15 +- > Tools/WebKitTestRunner/TestInvocation.cpp | 9 +- > 295 files changed, 3560 insertions(+), 1228 deletions(-) > >diff --git a/Source/JavaScriptCore/API/JSContextRef.cpp b/Source/JavaScriptCore/API/JSContextRef.cpp >index 025eba4..5edf681 100644 >--- a/Source/JavaScriptCore/API/JSContextRef.cpp >+++ b/Source/JavaScriptCore/API/JSContextRef.cpp >@@ -314,7 +314,9 @@ JSStringRef JSContextCreateBacktrace(JSContextRef ctx, unsigned maxStackSize) > BacktraceFunctor functor(builder, maxStackSize); > frame->iterate(functor); > >- return OpaqueJSString::create(builder.toString()).leakRef(); >+ if (auto string = builder.toString()) >+ return OpaqueJSString::create(*string).leakRef(); >+ CRASH(); > } > > bool JSGlobalContextGetRemoteInspectionEnabled(JSGlobalContextRef ctx) >diff --git a/Source/JavaScriptCore/API/tests/ExecutionTimeLimitTest.cpp b/Source/JavaScriptCore/API/tests/ExecutionTimeLimitTest.cpp >index 637b304..1652839 100644 >--- a/Source/JavaScriptCore/API/tests/ExecutionTimeLimitTest.cpp >+++ b/Source/JavaScriptCore/API/tests/ExecutionTimeLimitTest.cpp >@@ -194,22 +194,25 @@ int testExecutionTimeLimit() > scriptBuilder.appendNumber(timeAfterWatchdogShouldHaveFired.seconds()); > scriptBuilder.appendLiteral(") break; } } foo();"); > >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- shouldTerminateCallbackWasCalled = false; >- auto startTime = CPUTime::forCurrentThread(); >- JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >- auto endTime = CPUTime::forCurrentThread(); >- >- if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && shouldTerminateCallbackWasCalled) >- printf("PASS: %s script timed out as expected.\n", tierOptions.tier); >- else { >- if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >- printf("FAIL: %s script did not time out as expected.\n", tierOptions.tier); >- if (!shouldTerminateCallbackWasCalled) >- printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >- failed = true; >- } >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ shouldTerminateCallbackWasCalled = false; >+ auto startTime = CPUTime::forCurrentThread(); >+ JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >+ auto endTime = CPUTime::forCurrentThread(); >+ >+ if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && shouldTerminateCallbackWasCalled) >+ printf("PASS: %s script timed out as expected.\n", tierOptions.tier); >+ else { >+ if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >+ printf("FAIL: %s script did not time out as expected.\n", tierOptions.tier); >+ if (!shouldTerminateCallbackWasCalled) >+ printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >+ failed = true; >+ } >+ } else >+ CRASH(); > > if (!exception) { > printf("FAIL: %s TerminatedExecutionException was not thrown.\n", tierOptions.tier); >@@ -237,22 +240,25 @@ int testExecutionTimeLimit() > scriptBuilder.appendLiteral(" return recurse(i + 1); }"); > scriptBuilder.appendLiteral("recurse(0);"); > >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- shouldTerminateCallbackWasCalled = false; >- auto startTime = CPUTime::forCurrentThread(); >- JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >- auto endTime = CPUTime::forCurrentThread(); >- >- if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && shouldTerminateCallbackWasCalled) >- printf("PASS: %s script with infinite tail calls timed out as expected .\n", tierOptions.tier); >- else { >- if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >- printf("FAIL: %s script with infinite tail calls did not time out as expected.\n", tierOptions.tier); >- if (!shouldTerminateCallbackWasCalled) >- printf("FAIL: %s script with infinite tail calls' timeout callback was not called.\n", tierOptions.tier); >- failed = true; >- } >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ shouldTerminateCallbackWasCalled = false; >+ auto startTime = CPUTime::forCurrentThread(); >+ JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >+ auto endTime = CPUTime::forCurrentThread(); >+ >+ if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && shouldTerminateCallbackWasCalled) >+ printf("PASS: %s script with infinite tail calls timed out as expected .\n", tierOptions.tier); >+ else { >+ if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >+ printf("FAIL: %s script with infinite tail calls did not time out as expected.\n", tierOptions.tier); >+ if (!shouldTerminateCallbackWasCalled) >+ printf("FAIL: %s script with infinite tail calls' timeout callback was not called.\n", tierOptions.tier); >+ failed = true; >+ } >+ } else >+ CRASH(); > > if (!exception) { > printf("FAIL: %s TerminatedExecutionException was not thrown.\n", tierOptions.tier); >@@ -273,21 +279,24 @@ int testExecutionTimeLimit() > scriptBuilder.appendNumber(timeAfterWatchdogShouldHaveFired.seconds()); > scriptBuilder.appendLiteral(") break; } } catch(e) { } } foo();"); > >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- shouldTerminateCallbackWasCalled = false; >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ shouldTerminateCallbackWasCalled = false; > >- auto startTime = CPUTime::forCurrentThread(); >- JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >- auto endTime = CPUTime::forCurrentThread(); >+ auto startTime = CPUTime::forCurrentThread(); >+ JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >+ auto endTime = CPUTime::forCurrentThread(); > >- if (((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) || !shouldTerminateCallbackWasCalled) { >- if (!((endTime - startTime) < timeAfterWatchdogShouldHaveFired)) >- printf("FAIL: %s script did not time out as expected.\n", tierOptions.tier); >- if (!shouldTerminateCallbackWasCalled) >- printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >- failed = true; >- } >+ if (((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) || !shouldTerminateCallbackWasCalled) { >+ if (!((endTime - startTime) < timeAfterWatchdogShouldHaveFired)) >+ printf("FAIL: %s script did not time out as expected.\n", tierOptions.tier); >+ if (!shouldTerminateCallbackWasCalled) >+ printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >+ failed = true; >+ } >+ } else >+ CRASH(); > > if (exception) > printf("PASS: %s TerminatedExecutionException was not catchable as expected.\n", tierOptions.tier); >@@ -309,24 +318,27 @@ int testExecutionTimeLimit() > scriptBuilder.appendLiteral("function foo() { var startTime = currentCPUTime(); while (true) { for (var i = 0; i < 1000; i++); if (currentCPUTime() - startTime > "); > scriptBuilder.appendNumber(timeAfterWatchdogShouldHaveFired.seconds()); > scriptBuilder.appendLiteral(") break; } } foo();"); >- >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- shouldTerminateCallbackWasCalled = false; > >- auto startTime = CPUTime::forCurrentThread(); >- JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >- auto endTime = CPUTime::forCurrentThread(); >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ shouldTerminateCallbackWasCalled = false; >+ >+ auto startTime = CPUTime::forCurrentThread(); >+ JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >+ auto endTime = CPUTime::forCurrentThread(); > >- if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && !shouldTerminateCallbackWasCalled) >- printf("PASS: %s script timed out as expected when no callback is specified.\n", tierOptions.tier); >- else { >- if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >- printf("FAIL: %s script did not time out as expected when no callback is specified.\n", tierOptions.tier); >- else >- printf("FAIL: %s script called stale callback function.\n", tierOptions.tier); >- failed = true; >- } >+ if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && !shouldTerminateCallbackWasCalled) >+ printf("PASS: %s script timed out as expected when no callback is specified.\n", tierOptions.tier); >+ else { >+ if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >+ printf("FAIL: %s script did not time out as expected when no callback is specified.\n", tierOptions.tier); >+ else >+ printf("FAIL: %s script called stale callback function.\n", tierOptions.tier); >+ failed = true; >+ } >+ } else >+ CRASH(); > > if (!exception) { > printf("FAIL: %s TerminatedExecutionException was not thrown.\n", tierOptions.tier); >@@ -347,23 +359,26 @@ int testExecutionTimeLimit() > scriptBuilder.appendNumber(timeAfterWatchdogShouldHaveFired.seconds()); > scriptBuilder.appendLiteral(") break; } } foo();"); > >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- cancelTerminateCallbackWasCalled = false; >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ cancelTerminateCallbackWasCalled = false; > >- auto startTime = CPUTime::forCurrentThread(); >- JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >- auto endTime = CPUTime::forCurrentThread(); >+ auto startTime = CPUTime::forCurrentThread(); >+ JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >+ auto endTime = CPUTime::forCurrentThread(); > >- if (((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) && cancelTerminateCallbackWasCalled && !exception) >- printf("PASS: %s script timeout was cancelled as expected.\n", tierOptions.tier); >- else { >- if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) || exception) >- printf("FAIL: %s script timeout was not cancelled.\n", tierOptions.tier); >- if (!cancelTerminateCallbackWasCalled) >- printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >- failed = true; >- } >+ if (((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) && cancelTerminateCallbackWasCalled && !exception) >+ printf("PASS: %s script timeout was cancelled as expected.\n", tierOptions.tier); >+ else { >+ if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) || exception) >+ printf("FAIL: %s script timeout was not cancelled.\n", tierOptions.tier); >+ if (!cancelTerminateCallbackWasCalled) >+ printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >+ failed = true; >+ } >+ } else >+ CRASH(); > > if (exception) { > printf("FAIL: %s Unexpected TerminatedExecutionException thrown.\n", tierOptions.tier); >@@ -384,33 +399,36 @@ int testExecutionTimeLimit() > scriptBuilder.appendNumber(maxBusyLoopTime.seconds()); // in seconds. > scriptBuilder.appendLiteral(") break; } } foo();"); > >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- extendTerminateCallbackCalled = 0; >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ extendTerminateCallbackCalled = 0; > >- auto startTime = CPUTime::forCurrentThread(); >- JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >- auto endTime = CPUTime::forCurrentThread(); >- auto deltaTime = endTime - startTime; >+ auto startTime = CPUTime::forCurrentThread(); >+ JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception); >+ auto endTime = CPUTime::forCurrentThread(); >+ auto deltaTime = endTime - startTime; > >- if ((deltaTime >= timeBeforeExtendedDeadline) && (deltaTime < timeAfterExtendedDeadline) && (extendTerminateCallbackCalled == 2) && exception) >- printf("PASS: %s script timeout was extended as expected.\n", tierOptions.tier); >- else { >- if (deltaTime < timeBeforeExtendedDeadline) >- printf("FAIL: %s script timeout was not extended as expected.\n", tierOptions.tier); >- else if (deltaTime >= timeAfterExtendedDeadline) >- printf("FAIL: %s script did not timeout.\n", tierOptions.tier); >+ if ((deltaTime >= timeBeforeExtendedDeadline) && (deltaTime < timeAfterExtendedDeadline) && (extendTerminateCallbackCalled == 2) && exception) >+ printf("PASS: %s script timeout was extended as expected.\n", tierOptions.tier); >+ else { >+ if (deltaTime < timeBeforeExtendedDeadline) >+ printf("FAIL: %s script timeout was not extended as expected.\n", tierOptions.tier); >+ else if (deltaTime >= timeAfterExtendedDeadline) >+ printf("FAIL: %s script did not timeout.\n", tierOptions.tier); > >- if (extendTerminateCallbackCalled < 1) >- printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >- if (extendTerminateCallbackCalled < 2) >- printf("FAIL: %s script timeout callback was not called after timeout extension.\n", tierOptions.tier); >+ if (extendTerminateCallbackCalled < 1) >+ printf("FAIL: %s script timeout callback was not called.\n", tierOptions.tier); >+ if (extendTerminateCallbackCalled < 2) >+ printf("FAIL: %s script timeout callback was not called after timeout extension.\n", tierOptions.tier); > >- if (!exception) >- printf("FAIL: %s TerminatedExecutionException was not thrown during timeout extension test.\n", tierOptions.tier); >+ if (!exception) >+ printf("FAIL: %s TerminatedExecutionException was not thrown during timeout extension test.\n", tierOptions.tier); > >- failed = true; >- } >+ failed = true; >+ } >+ } else >+ CRASH(); > } > > #if HAVE(MACH_EXCEPTIONS) >@@ -425,56 +443,62 @@ int testExecutionTimeLimit() > scriptBuilder.appendNumber(timeAfterWatchdogShouldHaveFired.seconds()); > scriptBuilder.appendLiteral(") break; } } foo();"); > >- JSStringRef script = JSStringCreateWithUTF8CString(scriptBuilder.toString().utf8().data()); >- exception = nullptr; >- dispatchTerminateCallbackCalled = false; >- >- // We have to do this since blocks can only capture things as const. >- JSGlobalContextRef& contextRef = context; >- JSStringRef& scriptRef = script; >- JSValueRef& exceptionRef = exception; >- >- Lock syncLock; >- Lock& syncLockRef = syncLock; >- Condition synchronize; >- Condition& synchronizeRef = synchronize; >- bool didSynchronize = false; >- bool& didSynchronizeRef = didSynchronize; >- >- Seconds startTime; >- Seconds endTime; >- >- Seconds& startTimeRef = startTime; >- Seconds& endTimeRef = endTime; >- >- dispatch_group_t group = dispatch_group_create(); >- dispatch_group_async(group, dispatch_get_global_queue(0, 0), ^{ >- startTimeRef = CPUTime::forCurrentThread(); >- JSEvaluateScript(contextRef, scriptRef, nullptr, nullptr, 1, &exceptionRef); >- endTimeRef = CPUTime::forCurrentThread(); >- auto locker = WTF::holdLock(syncLockRef); >- didSynchronizeRef = true; >- synchronizeRef.notifyAll(); >- }); >- >- auto locker = holdLock(syncLock); >- synchronize.wait(syncLock, [&] { return didSynchronize; }); >- >- if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && dispatchTerminateCallbackCalled) >- printf("PASS: %s script on dispatch queue timed out as expected.\n", tierOptions.tier); >- else { >- if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >- printf("FAIL: %s script on dispatch queue did not time out as expected.\n", tierOptions.tier); >- if (!shouldTerminateCallbackWasCalled) >- printf("FAIL: %s script on dispatch queue timeout callback was not called.\n", tierOptions.tier); >- failed = true; >- } >+ if (auto string = scriptBuilder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ exception = nullptr; >+ dispatchTerminateCallbackCalled = false; >+ >+ // We have to do this since blocks can only capture things as const. >+ JSGlobalContextRef& contextRef = context; >+ JSStringRef& scriptRef = script; >+ JSValueRef& exceptionRef = exception; >+ >+ Lock syncLock; >+ Lock& syncLockRef = syncLock; >+ Condition synchronize; >+ Condition& synchronizeRef = synchronize; >+ bool didSynchronize = false; >+ bool& didSynchronizeRef = didSynchronize; >+ >+ Seconds startTime; >+ Seconds endTime; >+ >+ Seconds& startTimeRef = startTime; >+ Seconds& endTimeRef = endTime; >+ >+ dispatch_group_t group = dispatch_group_create(); >+ dispatch_group_async(group, dispatch_get_global_queue(0, 0), ^{ >+ startTimeRef = CPUTime::forCurrentThread(); >+ JSEvaluateScript(contextRef, scriptRef, nullptr, nullptr, 1, &exceptionRef); >+ endTimeRef = CPUTime::forCurrentThread(); >+ auto locker = WTF::holdLock(syncLockRef); >+ didSynchronizeRef = true; >+ synchronizeRef.notifyAll(); >+ }); >+ >+ auto locker = holdLock(syncLock); >+ synchronize.wait(syncLock, [&] { return didSynchronize; }); >+ >+ if (((endTime - startTime) < timeAfterWatchdogShouldHaveFired) && dispatchTerminateCallbackCalled) >+ printf("PASS: %s script on dispatch queue timed out as expected.\n", tierOptions.tier); >+ else { >+ if ((endTime - startTime) >= timeAfterWatchdogShouldHaveFired) >+ printf("FAIL: %s script on dispatch queue did not time out as expected.\n", tierOptions.tier); >+ if (!shouldTerminateCallbackWasCalled) >+ printf("FAIL: %s script on dispatch queue timeout callback was not called.\n", tierOptions.tier); >+ failed = true; >+ } >+ } else >+ CRASH(); > } > #endif > > JSGlobalContextRelease(context); > >- Options::setOptions(savedOptionsBuilder.toString().ascii().data()); >+ if (auto string = savedOptionsBuilder.toString()) >+ Options::setOptions(string->ascii().data()); >+ else >+ CRASH(); > } > > return failed; >diff --git a/Source/JavaScriptCore/API/tests/PingPongStackOverflowTest.cpp b/Source/JavaScriptCore/API/tests/PingPongStackOverflowTest.cpp >index 042bebf..112309b 100644 >--- a/Source/JavaScriptCore/API/tests/PingPongStackOverflowTest.cpp >+++ b/Source/JavaScriptCore/API/tests/PingPongStackOverflowTest.cpp >@@ -64,9 +64,12 @@ static bool PingPongStackOverflowObject_hasInstance(JSContextRef context, JSObje > } > builder.appendLiteral(");"); > >- JSStringRef script = JSStringCreateWithUTF8CString(builder.toString().utf8().data()); >- result = JSEvaluateScript(context, script, NULL, NULL, 1, exception); >- JSStringRelease(script); >+ if (auto string = builder.toString()) { >+ JSStringRef script = JSStringCreateWithUTF8CString(string->utf8().data()); >+ result = JSEvaluateScript(context, script, nullptr, nullptr, 1, exception); >+ JSStringRelease(script); >+ } else >+ CRASH(); > } > > --nativeRecursionCount; >diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog >index 65a52c1..a7cafc9 100644 >--- a/Source/JavaScriptCore/ChangeLog >+++ b/Source/JavaScriptCore/ChangeLog >@@ -1,3 +1,98 @@ >+2018-04-26 JF Bastien <jfbastien@apple.com> >+ >+ StringBuilder is fallible >+ https://bugs.webkit.org/show_bug.cgi?id=185048 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ StringBuilder can fail when allocating memory. StringBuilder is >+ mostly used with user input, which often means that just crashing >+ isn't the right outcome. Our fuzzers often encounter such things >+ for JavaScriptCore, and so far we've applied point solutions. No >+ more! >+ >+ * API/JSContextRef.cpp: >+ (JSContextCreateBacktrace): >+ * API/tests/ExecutionTimeLimitTest.cpp: >+ (testExecutionTimeLimit): >+ * API/tests/PingPongStackOverflowTest.cpp: >+ (PingPongStackOverflowObject_hasInstance): >+ * dfg/DFGStrengthReductionPhase.cpp: >+ (JSC::DFG::StrengthReductionPhase::handleNode): >+ * heap/HeapSnapshotBuilder.cpp: >+ (JSC::HeapSnapshotBuilder::json): >+ * inspector/ConsoleMessage.cpp: >+ (Inspector::ConsoleMessage::ConsoleMessage): >+ * inspector/ContentSearchUtilities.cpp: >+ (Inspector::ContentSearchUtilities::createSearchRegexSource): >+ * interpreter/Interpreter.cpp: >+ (JSC::Interpreter::stackTraceAsString): >+ * interpreter/StackVisitor.cpp: >+ (JSC::StackVisitor::Frame::toString const): >+ * jsc.cpp: >+ (resolvePath): >+ (functionJSCStack): >+ * runtime/ConfigFile.cpp: >+ (JSC::ConfigFile::parse): >+ * runtime/ConsoleClient.cpp: >+ (JSC::ConsoleClient::printConsoleMessage): >+ (JSC::ConsoleClient::printConsoleMessageWithArguments): >+ * runtime/DateConversion.cpp: >+ (JSC::formatDateTime): >+ * runtime/ErrorInstance.cpp: >+ (JSC::ErrorInstance::sanitizedToString): >+ * runtime/ExceptionHelpers.cpp: >+ (JSC::notAFunctionSourceAppender): >+ * runtime/FunctionConstructor.cpp: >+ (JSC::constructFunctionSkippingEvalEnabledCheck): >+ * runtime/IntlDateTimeFormat.cpp: >+ (JSC::IntlDateTimeFormat::initializeDateTimeFormat): >+ * runtime/IntlObject.cpp: >+ (JSC::privateUseLangTag): >+ (JSC::canonicalLangTag): >+ (JSC::removeUnicodeLocaleExtension): >+ * runtime/JSGlobalObjectFunctions.cpp: >+ (JSC::encode): >+ (JSC::decode): >+ (JSC::globalFuncEscape): >+ (JSC::globalFuncUnescape): >+ * runtime/JSONObject.cpp: >+ (JSC::Stringifier::stringify): >+ (JSC::Stringifier::Holder::appendNextProperty): >+ * runtime/LiteralParser.cpp: >+ (JSC::LiteralParser<CharType>::Lexer::lexStringSlow): >+ * runtime/Options.cpp: >+ (JSC::Options::dumpOptionsIfNeeded): >+ (JSC::Options::dumpAllOptions): >+ * runtime/RegExpPrototype.cpp: >+ (JSC::regExpProtoGetterSourceInternal): >+ * runtime/SamplingProfiler.cpp: >+ (JSC::SamplingProfiler::stackTracesAsJSON): >+ * runtime/StackFrame.cpp: >+ (JSC::StackFrame::toString const): >+ * runtime/StringConstructor.cpp: >+ (JSC::stringFromCodePoint): >+ * runtime/StringPrototype.cpp: >+ (JSC::substituteBackreferencesSlow): >+ * runtime/TypeProfiler.cpp: >+ (JSC::TypeProfiler::typeInformationForExpressionAtOffset): >+ * runtime/TypeSet.cpp: >+ (JSC::TypeSet::dumpTypes const): >+ (JSC::TypeSet::toJSONString const): >+ (JSC::StructureShape::propertyHash): >+ (JSC::StructureShape::stringRepresentation): >+ (JSC::StructureShape::toJSONString const): >+ * testRegExp.cpp: >+ (parseRegExpLine): >+ (parseTestLine): >+ * tools/FunctionOverrides.cpp: >+ (JSC::parseClause): >+ * wasm/WasmBBQPlan.cpp: >+ (JSC::Wasm::BBQPlan::prepare): >+ * yarr/YarrParser.h: >+ (JSC::Yarr::Parser::tryConsumeGroupName): >+ (JSC::Yarr::Parser::tryConsumeUnicodePropertyExpression): >+ > 2018-04-25 Robin Morisset <rmorisset@apple.com> > > In FTLLowerDFGToB3.cpp::compileCreateRest, always use a contiguous array as the indexing type when under isWatchingHavingABadTimeWatchpoint >diff --git a/Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp b/Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp >index 5c1be68..f70c718 100644 >--- a/Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp >+++ b/Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp >@@ -361,8 +361,11 @@ private: > StringBuilder builder; > builder.append(leftString); > builder.append(rightString); >- m_node->convertToLazyJSConstant( >- m_graph, LazyJSValue::newString(m_graph, builder.toString())); >+ if (auto string = builder.toString()) { >+ m_node->convertToLazyJSConstant( >+ m_graph, LazyJSValue::newString(m_graph, *string)); >+ } else >+ CRASH(); > m_changed = true; > } > break; >@@ -389,8 +392,11 @@ private: > if (!!extraString) > builder.append(extraString); > >- m_node->convertToLazyJSConstant( >- m_graph, LazyJSValue::newString(m_graph, builder.toString())); >+ if (auto string = builder.toString()) { >+ m_node->convertToLazyJSConstant( >+ m_graph, LazyJSValue::newString(m_graph, *string)); >+ } else >+ CRASH(); > m_changed = true; > break; > } >@@ -882,9 +888,12 @@ private: > else { > if (lastIndex < string.length()) > builder.append(string, lastIndex, string.length() - lastIndex); >- >- m_node->convertToLazyJSConstant( >- m_graph, LazyJSValue::newString(m_graph, builder.toString())); >+ >+ if (auto string = builder.toString()) { >+ m_node->convertToLazyJSConstant( >+ m_graph, LazyJSValue::newString(m_graph, *string)); >+ } else >+ CRASH(); > } > > m_node->origin = origin; >diff --git a/Source/JavaScriptCore/heap/HeapSnapshotBuilder.cpp b/Source/JavaScriptCore/heap/HeapSnapshotBuilder.cpp >index 65f633f..e1aad1b 100644 >--- a/Source/JavaScriptCore/heap/HeapSnapshotBuilder.cpp >+++ b/Source/JavaScriptCore/heap/HeapSnapshotBuilder.cpp >@@ -387,7 +387,9 @@ String HeapSnapshotBuilder::json(std::function<bool (const HeapSnapshotNode&)> a > json.append(']'); > > json.append('}'); >- return json.toString(); >+ if (auto string = json.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace JSC >diff --git a/Source/JavaScriptCore/inspector/ConsoleMessage.cpp b/Source/JavaScriptCore/inspector/ConsoleMessage.cpp >index 5cfb04d..71e4fc5 100644 >--- a/Source/JavaScriptCore/inspector/ConsoleMessage.cpp >+++ b/Source/JavaScriptCore/inspector/ConsoleMessage.cpp >@@ -115,7 +115,10 @@ ConsoleMessage::ConsoleMessage(MessageSource source, MessageType type, MessageLe > break; > case JSONLogValue::Type::JSON: > if (builder.length()) { >- m_jsonLogValues.append({ JSONLogValue::Type::String, JSON::Value::create(builder.toString())->toJSONString() }); >+ if (auto string = builder.toString()) >+ m_jsonLogValues.append({ JSONLogValue::Type::String, JSON::Value::create(*string)->toJSONString() }); >+ else >+ CRASH(); > builder.resize(0); > } > >@@ -124,8 +127,12 @@ ConsoleMessage::ConsoleMessage(MessageSource source, MessageType type, MessageLe > } > } > >- if (builder.length()) >- m_jsonLogValues.append({ JSONLogValue::Type::String, JSON::Value::create(builder.toString())->toJSONString() }); >+ if (builder.length()) { >+ if (auto string = builder.toString()) >+ m_jsonLogValues.append({ JSONLogValue::Type::String, JSON::Value::create(*string)->toJSONString() }); >+ else >+ CRASH(); >+ } > > if (m_jsonLogValues.size()) > m_message = m_jsonLogValues[0].value; >diff --git a/Source/JavaScriptCore/inspector/ContentSearchUtilities.cpp b/Source/JavaScriptCore/inspector/ContentSearchUtilities.cpp >index aaa81e2..b0c1944 100644 >--- a/Source/JavaScriptCore/inspector/ContentSearchUtilities.cpp >+++ b/Source/JavaScriptCore/inspector/ContentSearchUtilities.cpp >@@ -55,7 +55,9 @@ static String createSearchRegexSource(const String& text) > result.append(character); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > static inline size_t sizetExtractor(const size_t* value) >diff --git a/Source/JavaScriptCore/interpreter/Interpreter.cpp b/Source/JavaScriptCore/interpreter/Interpreter.cpp >index 4f72709..ed17494 100644 >--- a/Source/JavaScriptCore/interpreter/Interpreter.cpp >+++ b/Source/JavaScriptCore/interpreter/Interpreter.cpp >@@ -577,7 +577,9 @@ JSString* Interpreter::stackTraceAsString(VM& vm, const Vector<StackFrame>& stac > if (i != stackTrace.size() - 1) > builder.append('\n'); > } >- return jsString(&vm, builder.toString()); >+ if (auto string = builder.toString()) >+ return jsString(&vm, *string); >+ CRASH(); > } > > ALWAYS_INLINE static HandlerInfo* findExceptionHandler(StackVisitor& visitor, CodeBlock* codeBlock, RequiredHandler requiredHandler) >diff --git a/Source/JavaScriptCore/interpreter/StackVisitor.cpp b/Source/JavaScriptCore/interpreter/StackVisitor.cpp >index 1d1ff73..70cd117 100644 >--- a/Source/JavaScriptCore/interpreter/StackVisitor.cpp >+++ b/Source/JavaScriptCore/interpreter/StackVisitor.cpp >@@ -347,7 +347,9 @@ String StackVisitor::Frame::toString() const > traceBuild.appendNumber(column); > } > } >- return traceBuild.toString().impl(); >+ if (auto string = traceBuild.toString()) >+ return string->impl(); >+ CRASH(); > } > > intptr_t StackVisitor::Frame::sourceID() >diff --git a/Source/JavaScriptCore/jsc.cpp b/Source/JavaScriptCore/jsc.cpp >index 4a73e87..3fa4664 100644 >--- a/Source/JavaScriptCore/jsc.cpp >+++ b/Source/JavaScriptCore/jsc.cpp >@@ -765,7 +765,9 @@ static String resolvePath(const DirectoryName& directoryName, const ModuleName& > if (i + 1 != directoryPieces.size()) > builder.append(pathSeparator()); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static String absolutePath(const String& fileName) >@@ -1125,8 +1127,11 @@ EncodedJSValue JSC_HOST_CALL functionJSCStack(ExecState* exec) > > FunctionJSCStackFunctor functor(trace); > exec->iterate(functor); >- fprintf(stderr, "%s", trace.toString().utf8().data()); >- return JSValue::encode(jsUndefined()); >+ if (auto string = trace.toString()) { >+ fprintf(stderr, "%s", string->utf8().data()); >+ return JSValue::encode(jsUndefined()); >+ } >+ CRASH(); > } > > EncodedJSValue JSC_HOST_CALL functionGCAndSweep(ExecState* exec) >diff --git a/Source/JavaScriptCore/runtime/ConfigFile.cpp b/Source/JavaScriptCore/runtime/ConfigFile.cpp >index bb87666..f7ecdaa 100644 >--- a/Source/JavaScriptCore/runtime/ConfigFile.cpp >+++ b/Source/JavaScriptCore/runtime/ConfigFile.cpp >@@ -465,9 +465,12 @@ void ConfigFile::parse() > WTF::setDataFile(logPathname); > > if (!jscOptionsBuilder.isEmpty()) { >- const char* optionsStr = jscOptionsBuilder.toString().utf8().data(); >- Options::enableRestrictedOptions(true); >- Options::setOptions(optionsStr); >+ if (auto string = jscOptionsBuilder.toString()) { >+ const char* optionsStr = string->utf8().data(); >+ Options::enableRestrictedOptions(true); >+ Options::setOptions(optionsStr); >+ } else >+ CRASH(); > } > } else > WTF::dataLogF("Error in JSC Config file on or near line %u, parsing '%s'\n", scanner.lineNumber(), scanner.currentBuffer()); >diff --git a/Source/JavaScriptCore/runtime/ConsoleClient.cpp b/Source/JavaScriptCore/runtime/ConsoleClient.cpp >index 2917d768..b86643b 100644 >--- a/Source/JavaScriptCore/runtime/ConsoleClient.cpp >+++ b/Source/JavaScriptCore/runtime/ConsoleClient.cpp >@@ -144,7 +144,10 @@ void ConsoleClient::printConsoleMessage(MessageSource source, MessageType type, > builder.append(' '); > builder.append(message); > >- WTFLogAlways("%s", builder.toString().utf8().data()); >+ if (auto string = builder.toString()) >+ WTFLogAlways("%s", string->utf8().data()); >+ else >+ CRASH(); > } > > void ConsoleClient::printConsoleMessageWithArguments(MessageSource source, MessageType type, MessageLevel level, JSC::ExecState* exec, Ref<ScriptArguments>&& arguments) >@@ -170,7 +173,10 @@ void ConsoleClient::printConsoleMessageWithArguments(MessageSource source, Messa > scope.clearException(); > } > >- WTFLogAlways("%s", builder.toString().utf8().data()); >+ if (auto string = builder.toString()) >+ WTFLogAlways("%s", string->utf8().data()); >+ else >+ CRASH(); > > if (isTraceMessage) { > for (size_t i = 0; i < callStack->size(); ++i) { >@@ -187,7 +193,10 @@ void ConsoleClient::printConsoleMessageWithArguments(MessageSource source, Messa > appendURLAndPosition(callFrameBuilder, callFrame.sourceURL(), callFrame.lineNumber(), callFrame.columnNumber()); > callFrameBuilder.append(')'); > >- WTFLogAlways("%s", callFrameBuilder.toString().utf8().data()); >+ if (auto string = callFrameBuilder.toString()) >+ WTFLogAlways("%s", string->utf8().data()); >+ else >+ CRASH(); > } > } > } >diff --git a/Source/JavaScriptCore/runtime/DateConversion.cpp b/Source/JavaScriptCore/runtime/DateConversion.cpp >index 8a87cc6..423be24 100644 >--- a/Source/JavaScriptCore/runtime/DateConversion.cpp >+++ b/Source/JavaScriptCore/runtime/DateConversion.cpp >@@ -123,7 +123,9 @@ String formatDateTime(const GregorianDateTime& t, DateTimeFormat format, bool as > } > } > >- return builder.toString().impl(); >+ if (auto string = builder.toString()) >+ return string->impl(); >+ CRASH(); > } > > } // namespace JSC >diff --git a/Source/JavaScriptCore/runtime/ErrorInstance.cpp b/Source/JavaScriptCore/runtime/ErrorInstance.cpp >index c172428..78d2997 100644 >--- a/Source/JavaScriptCore/runtime/ErrorInstance.cpp >+++ b/Source/JavaScriptCore/runtime/ErrorInstance.cpp >@@ -199,7 +199,9 @@ String ErrorInstance::sanitizedToString(ExecState* exec) > builder.append(nameString); > builder.appendLiteral(": "); > builder.append(messageString); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool ErrorInstance::materializeErrorInfoIfNeeded(VM& vm) >diff --git a/Source/JavaScriptCore/runtime/ExceptionHelpers.cpp b/Source/JavaScriptCore/runtime/ExceptionHelpers.cpp >index 699144b..6e01b9d 100644 >--- a/Source/JavaScriptCore/runtime/ExceptionHelpers.cpp >+++ b/Source/JavaScriptCore/runtime/ExceptionHelpers.cpp >@@ -211,7 +211,9 @@ static String notAFunctionSourceAppender(const String& originalMessage, const St > } > builder.append(')'); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static String invalidParameterInSourceAppender(const String& originalMessage, const String& sourceText, RuntimeType type, ErrorInstance::SourceTextWhereErrorOccurred occurrence) >diff --git a/Source/JavaScriptCore/runtime/FunctionConstructor.cpp b/Source/JavaScriptCore/runtime/FunctionConstructor.cpp >index 031fe32..dba5f86 100644 >--- a/Source/JavaScriptCore/runtime/FunctionConstructor.cpp >+++ b/Source/JavaScriptCore/runtime/FunctionConstructor.cpp >@@ -143,14 +143,17 @@ JSObject* constructFunctionSkippingEvalEnabledCheck( > { > // The spec mandates that the parameters parse as a valid parameter list > // independent of the function body. >- String program = makeString("(", prefix, "(", parameterBuilder.toString(), "){\n\n})"); >- SourceCode source = makeSource(program, sourceOrigin, sourceURL, position); >- JSValue exception; >- checkSyntax(exec, source, &exception); >- if (exception) { >- scope.throwException(exec, exception); >- return nullptr; >- } >+ if (auto string = parameterBuilder.toString()) { >+ String program = makeString("(", prefix, "(", *string, "){\n\n})"); >+ SourceCode source = makeSource(program, sourceOrigin, sourceURL, position); >+ JSValue exception; >+ checkSyntax(exec, source, &exception); >+ if (exception) { >+ scope.throwException(exec, exception); >+ return nullptr; >+ } >+ } else >+ CRASH(); > } > > builder.append(parameterBuilder); >@@ -161,7 +164,10 @@ JSObject* constructFunctionSkippingEvalEnabledCheck( > RETURN_IF_EXCEPTION(scope, nullptr); > builder.append(body); > builder.appendLiteral("\n}}"); >- program = builder.toString(); >+ if (auto string = builder.toString()) >+ program = *string; >+ else >+ CRASH(); > } > > SourceCode source = makeSource(program, sourceOrigin, sourceURL, position); >diff --git a/Source/JavaScriptCore/runtime/IntlDateTimeFormat.cpp b/Source/JavaScriptCore/runtime/IntlDateTimeFormat.cpp >index c920acf..2c2f045 100644 >--- a/Source/JavaScriptCore/runtime/IntlDateTimeFormat.cpp >+++ b/Source/JavaScriptCore/runtime/IntlDateTimeFormat.cpp >@@ -646,7 +646,11 @@ void IntlDateTimeFormat::initializeDateTimeFormat(ExecState& exec, JSValue local > return; > } > >- String skeleton = skeletonBuilder.toString(); >+ String skeleton; >+ if (auto string = skeletonBuilder.toString()) >+ skeleton = *string; >+ else >+ CRASH(); > StringView skeletonView(skeleton); > Vector<UChar, 32> patternBuffer(32); > status = U_ZERO_ERROR; >diff --git a/Source/JavaScriptCore/runtime/IntlObject.cpp b/Source/JavaScriptCore/runtime/IntlObject.cpp >index 3f54340..b965df9 100644 >--- a/Source/JavaScriptCore/runtime/IntlObject.cpp >+++ b/Source/JavaScriptCore/runtime/IntlObject.cpp >@@ -247,7 +247,9 @@ static String privateUseLangTag(const Vector<String>& parts, size_t startIndex) > if (currentIndex < numParts) > return String(); > >- return privateuse.toString(); >+ if (auto string = privateuse.toString()) >+ return *string; >+ CRASH(); > } > > static String canonicalLangTag(const Vector<String>& parts) >@@ -380,7 +382,10 @@ static String canonicalLangTag(const Vector<String>& parts) > if (!numExtParts) > return String(); > >- extensions.append(extension.toString()); >+ if (auto string = extension.toString()) >+ extensions.append(*string); >+ else >+ CRASH(); > } > > // Add extensions to canonical sorted by singleton. >@@ -408,7 +413,9 @@ static String canonicalLangTag(const Vector<String>& parts) > > // FIXME: Replace subtags with their preferred values. > >- return canonical.toString(); >+ if (auto string = canonical.toString()) >+ return *string; >+ CRASH(); > } > > static String grandfatheredLangTag(const String& locale) >@@ -613,7 +620,10 @@ String removeUnicodeLocaleExtension(const String& locale) > builder.append(parts[p]); > } > } >- return builder.toString(); >+ >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static MatcherResult lookupMatcher(ExecState& state, const HashSet<String>& availableLocales, const Vector<String>& requestedLocales) >diff --git a/Source/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp b/Source/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp >index 7313673..19b52ad 100644 >--- a/Source/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp >+++ b/Source/JavaScriptCore/runtime/JSGlobalObjectFunctions.cpp >@@ -151,7 +151,9 @@ static JSValue encode(ExecState* exec, const Bitmap<256>& doNotEscape, const Cha > } > } > >- return jsString(exec, builder.toString()); >+ if (auto string = builder.toString()) >+ return jsString(exec, *string); >+ CRASH(); > } > > static JSValue encode(ExecState* exec, const Bitmap<256>& doNotEscape) >@@ -230,7 +232,10 @@ static JSValue decode(ExecState* exec, const CharType* characters, int length, c > builder.append(c); > } > scope.release(); >- return jsString(&vm, builder.toString()); >+ >+ if (auto string = builder.toString()) >+ return jsString(&vm, *string); >+ CRASH(); > } > > static JSValue decode(ExecState* exec, const Bitmap<256>& doNotUnescape, bool strict) >@@ -603,7 +608,9 @@ EncodedJSValue JSC_HOST_CALL globalFuncEscape(ExecState* exec) > appendByteAsHex(static_cast<LChar>(u), builder); > } > } >- return jsString(exec, builder.toString()); >+ if (auto string = builder.toString()) >+ return jsString(exec, *string); >+ CRASH(); > } > > const UChar* c = view.characters16(); >@@ -622,7 +629,9 @@ EncodedJSValue JSC_HOST_CALL globalFuncEscape(ExecState* exec) > } > } > >- return jsString(exec, builder.toString()); >+ if (auto string = builder.toString()) >+ return jsString(exec, *string); >+ CRASH(); > })); > } > >@@ -678,7 +687,9 @@ EncodedJSValue JSC_HOST_CALL globalFuncUnescape(ExecState* exec) > } > } > >- return jsString(exec, builder.toString()); >+ if (auto string = builder.toString()) >+ return jsString(exec, *string); >+ CRASH(); > })); > } > >diff --git a/Source/JavaScriptCore/runtime/JSONObject.cpp b/Source/JavaScriptCore/runtime/JSONObject.cpp >index b3a7808..d7c06dd 100644 >--- a/Source/JavaScriptCore/runtime/JSONObject.cpp >+++ b/Source/JavaScriptCore/runtime/JSONObject.cpp >@@ -278,7 +278,9 @@ JSValue Stringifier::stringify(JSValue value) > return jsUndefined(); > > scope.release(); >- return jsString(m_exec, result.toString()); >+ if (auto string = result.toString()) >+ return jsString(m_exec, *string); >+ CRASH(); > } > > ALWAYS_INLINE JSValue Stringifier::toJSON(JSValue value, const PropertyNameForFunctionCall& propertyName) >@@ -504,8 +506,12 @@ bool Stringifier::Holder::appendNextProperty(Stringifier& stringifier, StringBui > // Last time through, finish up and return false. > if (m_index == m_size) { > stringifier.unindent(); >- if (m_size && builder[builder.length() - 1] != '{') >- stringifier.startNewLine(builder); >+ if (m_size) { >+ if (builder.failed()) >+ CRASH(); >+ if (*builder[builder.length() - 1] != '{') >+ stringifier.startNewLine(builder); >+ } > builder.append(m_isArray ? ']' : '}'); > return false; > } >@@ -548,7 +554,9 @@ bool Stringifier::Holder::appendNextProperty(Stringifier& stringifier, StringBui > rollBackPoint = builder.length(); > > // Append the separator string. >- if (builder[rollBackPoint - 1] != '{') >+ if (builder.failed()) >+ CRASH(); >+ if (*builder[rollBackPoint - 1] != '{') > builder.append(','); > stringifier.startNewLine(builder); > >diff --git a/Source/JavaScriptCore/runtime/LiteralParser.cpp b/Source/JavaScriptCore/runtime/LiteralParser.cpp >index f00fe07..b86868a 100644 >--- a/Source/JavaScriptCore/runtime/LiteralParser.cpp >+++ b/Source/JavaScriptCore/runtime/LiteralParser.cpp >@@ -466,10 +466,16 @@ slowPathBegin: > } else { > if (m_builder.is8Bit()) { > token.stringIs8Bit = 1; >- token.stringToken8 = m_builder.characters8(); >+ if (auto chars = m_builder.characters8()) >+ token.stringToken8 = *chars; >+ else >+ CRASH(); > } else { > token.stringIs8Bit = 0; >- token.stringToken16 = m_builder.characters16(); >+ if (auto chars = m_builder.characters16()) >+ token.stringToken16 = *chars; >+ else >+ CRASH(); > } > token.stringLength = m_builder.length(); > } >diff --git a/Source/JavaScriptCore/runtime/Options.cpp b/Source/JavaScriptCore/runtime/Options.cpp >index 3c86123..927cd08 100644 >--- a/Source/JavaScriptCore/runtime/Options.cpp >+++ b/Source/JavaScriptCore/runtime/Options.cpp >@@ -595,7 +595,10 @@ void Options::dumpOptionsIfNeeded() > > StringBuilder builder; > dumpAllOptions(builder, level, title, nullptr, " ", "\n", DumpDefaults); >- dataLog(builder.toString()); >+ if (auto string = builder.toString()) >+ dataLog(*string); >+ else >+ CRASH(); > } > } > >@@ -804,7 +807,10 @@ void Options::dumpAllOptions(FILE* stream, DumpLevel level, const char* title) > { > StringBuilder builder; > dumpAllOptions(builder, level, title, nullptr, " ", "\n", DumpDefaults); >- fprintf(stream, "%s", builder.toString().utf8().data()); >+ if (auto string = builder.toString()) >+ fprintf(stream, "%s", string->utf8().data()); >+ else >+ CRASH(); > } > > void Options::dumpOption(StringBuilder& builder, DumpLevel level, Options::ID id, >diff --git a/Source/JavaScriptCore/runtime/RegExpPrototype.cpp b/Source/JavaScriptCore/runtime/RegExpPrototype.cpp >index d321e2d..36fc6ab 100644 >--- a/Source/JavaScriptCore/runtime/RegExpPrototype.cpp >+++ b/Source/JavaScriptCore/runtime/RegExpPrototype.cpp >@@ -466,7 +466,9 @@ static inline JSValue regExpProtoGetterSourceInternal(ExecState* exec, const Str > previousCharacterWasBackslash = ch == '\\'; > } > >- return jsString(exec, result.toString()); >+ if (auto string = result.toString()) >+ return jsString(exec, *string); >+ CRASH(); > } > > EncodedJSValue JSC_HOST_CALL regExpProtoGetterSource(ExecState* exec) >diff --git a/Source/JavaScriptCore/runtime/SamplingProfiler.cpp b/Source/JavaScriptCore/runtime/SamplingProfiler.cpp >index 592af41..f08c4fe 100644 >--- a/Source/JavaScriptCore/runtime/SamplingProfiler.cpp >+++ b/Source/JavaScriptCore/runtime/SamplingProfiler.cpp >@@ -904,7 +904,9 @@ String SamplingProfiler::stackTracesAsJSON() > > clearData(locker); > >- return json.toString(); >+ if (auto string = json.toString()) >+ return *string; >+ CRASH(); > } > > void SamplingProfiler::registerForReportAtExit() >diff --git a/Source/JavaScriptCore/runtime/StackFrame.cpp b/Source/JavaScriptCore/runtime/StackFrame.cpp >index 9f2d60d..48a22b0 100644 >--- a/Source/JavaScriptCore/runtime/StackFrame.cpp >+++ b/Source/JavaScriptCore/runtime/StackFrame.cpp >@@ -139,7 +139,9 @@ String StackFrame::toString(VM& vm) const > traceBuild.appendNumber(column); > } > } >- return traceBuild.toString().impl(); >+ if (auto string = traceBuild.toString()) >+ return string->impl(); >+ CRASH(); > } > > void StackFrame::visitChildren(SlotVisitor& visitor) >diff --git a/Source/JavaScriptCore/runtime/StringConstructor.cpp b/Source/JavaScriptCore/runtime/StringConstructor.cpp >index 10abc76..645a3bd 100644 >--- a/Source/JavaScriptCore/runtime/StringConstructor.cpp >+++ b/Source/JavaScriptCore/runtime/StringConstructor.cpp >@@ -125,7 +125,9 @@ static EncodedJSValue JSC_HOST_CALL stringFromCodePoint(ExecState* exec) > } > > scope.release(); >- return JSValue::encode(jsString(exec, builder.toString())); >+ if (auto string = builder.toString()) >+ return JSValue::encode(jsString(exec, *string)); >+ CRASH(); > } > > static EncodedJSValue JSC_HOST_CALL constructWithStringConstructor(ExecState* exec) >diff --git a/Source/JavaScriptCore/runtime/StringPrototype.cpp b/Source/JavaScriptCore/runtime/StringPrototype.cpp >index a0d3601..58ccd57 100644 >--- a/Source/JavaScriptCore/runtime/StringPrototype.cpp >+++ b/Source/JavaScriptCore/runtime/StringPrototype.cpp >@@ -280,7 +280,9 @@ static NEVER_INLINE String substituteBackreferencesSlow(StringView replacement, > if (replacement.length() - offset) > substitutedReplacement.append(replacement.substring(offset)); > >- return substitutedReplacement.toString(); >+ if (auto string = substitutedReplacement.toString()) >+ return *string; >+ CRASH(); > } > > inline String substituteBackreferencesInline(const String& replacement, StringView source, const int* ovector, RegExp* reg) >diff --git a/Source/JavaScriptCore/runtime/TypeProfiler.cpp b/Source/JavaScriptCore/runtime/TypeProfiler.cpp >index 0f85ef8..7ae9745 100644 >--- a/Source/JavaScriptCore/runtime/TypeProfiler.cpp >+++ b/Source/JavaScriptCore/runtime/TypeProfiler.cpp >@@ -104,8 +104,10 @@ String TypeProfiler::typeInformationForExpressionAtOffset(TypeProfilerSearchDesc > json.appendLiteral("false"); > > json.append('}'); >- >- return json.toString(); >+ >+ if (auto string = json.toString()) >+ return *string; >+ CRASH(); > } > > TypeLocation* TypeProfiler::findLocation(unsigned divot, intptr_t sourceID, TypeProfilerSearchDescriptor descriptor, VM& vm) >diff --git a/Source/JavaScriptCore/runtime/TypeSet.cpp b/Source/JavaScriptCore/runtime/TypeSet.cpp >index 7a412e6..c3a05c7 100644 >--- a/Source/JavaScriptCore/runtime/TypeSet.cpp >+++ b/Source/JavaScriptCore/runtime/TypeSet.cpp >@@ -131,7 +131,9 @@ String TypeSet::dumpTypes() const > seen.append(leastCommonAncestor()); > } > >- return seen.toString(); >+ if (auto string = seen.toString()) >+ return *string; >+ CRASH(); > } > > bool TypeSet::doesTypeConformTo(RuntimeTypeMask test) const >@@ -317,7 +319,9 @@ String TypeSet::toJSONString() const > json.append(']'); > > json.append('}'); >- return json.toString(); >+ if (auto string = json.toString()) >+ return *string; >+ CRASH(); > } > > StructureShape::StructureShape() >@@ -362,8 +366,11 @@ String StructureShape::propertyHash() > builder.append(m_proto->propertyHash()); > } > >- m_propertyHash = std::make_unique<String>(builder.toString()); >- return *m_propertyHash; >+ if (auto string = builder.toString()) { >+ m_propertyHash = std::make_unique<String>(*string); >+ return *m_propertyHash; >+ } >+ CRASH(); > } > > String StructureShape::leastCommonAncestor(const Vector<Ref<StructureShape>>& shapes) >@@ -427,7 +434,9 @@ String StructureShape::stringRepresentation() > > representation.append('}'); > >- return representation.toString(); >+ if (auto string = representation.toString()) >+ return *string; >+ CRASH(); > } > > String StructureShape::toJSONString() const >@@ -494,7 +503,9 @@ String StructureShape::toJSONString() const > > json.append('}'); > >- return json.toString(); >+ if (auto string = json.toString()) >+ return *string; >+ CRASH(); > } > > Ref<Inspector::Protocol::Runtime::StructureDescription> StructureShape::inspectorRepresentation() >diff --git a/Source/JavaScriptCore/testRegExp.cpp b/Source/JavaScriptCore/testRegExp.cpp >index e6cdd50..c4d8ded 100644 >--- a/Source/JavaScriptCore/testRegExp.cpp >+++ b/Source/JavaScriptCore/testRegExp.cpp >@@ -329,12 +329,15 @@ static RegExp* parseRegExpLine(VM& vm, char* line, int lineLength, const char** > > ++i; > >- RegExp* r = RegExp::create(vm, pattern.toString(), regExpFlags(line + i)); >- if (!r->isValid()) { >- *regexpError = r->errorMessage(); >- return nullptr; >+ if (auto string = pattern.toString()) { >+ RegExp* r = RegExp::create(vm, *string, regExpFlags(line + i)); >+ if (!r->isValid()) { >+ *regexpError = r->errorMessage(); >+ return nullptr; >+ } >+ return r; > } >- return r; >+ CRASH(); > } > > static RegExpTest* parseTestLine(char* line, int lineLength) >@@ -377,8 +380,11 @@ static RegExpTest* parseTestLine(char* line, int lineLength) > int start, end; > > RegExpTest* result = new RegExpTest(); >- >- result->subject = subjectString.toString(); >+ >+ if (auto string = subjectString.toString()) >+ result->subject = *string; >+ else >+ CRASH(); > result->offset = offset; > result->result = matchResult; > >diff --git a/Source/JavaScriptCore/tools/FunctionOverrides.cpp b/Source/JavaScriptCore/tools/FunctionOverrides.cpp >index e83b6ee..4ac27c5 100644 >--- a/Source/JavaScriptCore/tools/FunctionOverrides.cpp >+++ b/Source/JavaScriptCore/tools/FunctionOverrides.cpp >@@ -218,13 +218,18 @@ static String parseClause(const char* keyword, size_t keywordLength, FILE* file, > FAIL_WITH_ERROR(SYNTAX_ERROR, ("Unexpected characters after '", keyword, "' clause end delimiter '", delimiter, "':\n", line, "\n")); > > builder.append(line, p - line + 1); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > builder.append(line); > > } while ((line = fgets(buffer, bufferSize, file))); > >- FAIL_WITH_ERROR(SYNTAX_ERROR, ("'", keyword, "' clause end delimiter '", delimiter, "' not found:\n", builder.toString(), "\n", "Are you missing a '}' before the delimiter?\n")); >+ if (auto string = builder.toString()) >+ FAIL_WITH_ERROR(SYNTAX_ERROR, ("'", keyword, "' clause end delimiter '", delimiter, "' not found:\n", *string, "\n", "Are you missing a '}' before the delimiter?\n")); >+ else >+ CRASH(); > } > > void FunctionOverrides::parseOverridesInFile(const char* fileName) >diff --git a/Source/JavaScriptCore/wasm/WasmBBQPlan.cpp b/Source/JavaScriptCore/wasm/WasmBBQPlan.cpp >index a7820c9..fa00341 100644 >--- a/Source/JavaScriptCore/wasm/WasmBBQPlan.cpp >+++ b/Source/JavaScriptCore/wasm/WasmBBQPlan.cpp >@@ -150,8 +150,11 @@ void BBQPlan::prepare() > builder.appendLiteral("Failed allocating enough space for "); > builder.appendNumber(size); > builder.append(what); >- fail(holdLock(m_lock), builder.toString()); >- return false; >+ if (auto string = builder.toString()) { >+ fail(holdLock(m_lock), WTFMove(*string)); >+ return false; >+ } >+ CRASH(); > } > return true; > }; >diff --git a/Source/JavaScriptCore/yarr/YarrParser.h b/Source/JavaScriptCore/yarr/YarrParser.h >index f16f11f..8b758ec 100644 >--- a/Source/JavaScriptCore/yarr/YarrParser.h >+++ b/Source/JavaScriptCore/yarr/YarrParser.h >@@ -1031,8 +1031,11 @@ private: > > while (!atEndOfPattern()) { > ch = tryConsumeIdentifierCharacter(); >- if (ch == '>') >- return std::optional<String>(identifierBuilder.toString()); >+ if (ch == '>') { >+ if (auto string = identifierBuilder.toString()) >+ return std::optional<String>(*string); >+ CRASH(); >+ } > > if (!isIdentifierPart(ch)) > break; >@@ -1070,23 +1073,32 @@ private: > } > > if (foundEquals) { >- auto result = unicodeMatchPropertyValue(unicodePropertyName, expressionBuilder.toString()); >+ if (auto string = expressionBuilder.toString()) { >+ auto result = unicodeMatchPropertyValue(unicodePropertyName, *string); >+ if (!result) >+ m_errorCode = ErrorCode::InvalidUnicodePropertyExpression; >+ return result; >+ } >+ CRASH(); >+ } >+ >+ if (auto string = expressionBuilder.toString()) { >+ auto result = unicodeMatchProperty(*string); > if (!result) > m_errorCode = ErrorCode::InvalidUnicodePropertyExpression; > return result; > } >- >- auto result = unicodeMatchProperty(expressionBuilder.toString()); >- if (!result) >- m_errorCode = ErrorCode::InvalidUnicodePropertyExpression; >- return result; >+ CRASH(); > } > > consume(); > if (ch == '=') { > if (!foundEquals) { > foundEquals = true; >- unicodePropertyName = expressionBuilder.toString(); >+ if (auto string = expressionBuilder.toString()) >+ unicodePropertyName = *string; >+ else >+ CRASH(); > expressionBuilder.clear(); > } else > errors++; >diff --git a/Source/WTF/ChangeLog b/Source/WTF/ChangeLog >index 1d2d20d..620a5fc 100644 >--- a/Source/WTF/ChangeLog >+++ b/Source/WTF/ChangeLog >@@ -1,3 +1,146 @@ >+2018-04-26 JF Bastien <jfbastien@apple.com> >+ >+ StringBuilder is fallible >+ https://bugs.webkit.org/show_bug.cgi?id=185048 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ StringBuilder can fail when allocating memory. StringBuilder is >+ mostly used with user input, which often means that just crashing >+ isn't the right outcome. Our fuzzers often encounter such things >+ for JavaScriptCore, and so far we've applied point solutions. No >+ more! This patch makes StringBuilder fallible and enforces this in >+ two ways: >+ >+ - Each step of building a string can be checked for failure >+ because they now return a "Fallible<T>". This can be ignored at >+ every step! >+ - The final step of StringBuilder, getting the string out, >+ returns a "Fallible<String>" which is marked with >+ WARN_UNUSED_RETURN. Failure is communicated if any of the building >+ steps failed. >+ >+ Doing this two-step approach means that code can continue >+ operating as it did before (append a bunch and then get a string) >+ and only needs to care about the string potentially not being >+ available. This is enforced by the type system: Fallible<T> is >+ std::expected<T, StringBuilder::Failure>. >+ >+ The following intermediate functions can now be observed to fail >+ (or ignored): >+ >+ - append >+ - appendUninitialized >+ - appendUninitializedSlow >+ - appendQuotedJSONString used to return false on failure, it now returns Fallible<> >+ - resize >+ - allocateBuffer >+ - allocateBufferUpConvert >+ - reallocateBuffer >+ - reserveCapacity >+ - shrinkToFit >+ - operator[] >+ - characters8 >+ - characters16 >+ >+ Failure in these methods comes in two forms: out of memory, and >+ would overflow. When an operation would overflow it leaves the >+ StringBuilder in its previous state, allowing users to resume >+ work, keep the string as it existed before failure. When we just >+ fail allocating it means we expected to succeed, so clearing the >+ StringBuilder is the right thing to do. >+ >+ Supporting failure in StringBuilder required adding "try" variants >+ of some methods in StringImpl. >+ >+ This patch updates all WebKit code which uses StringBuilder. It >+ leaves all intermediate function usage alone (code still appends >+ back-to-back, blissfully unaware of failure), and only checks for >+ failure when retrieving the string. The pattern used is usually: >+ >+ if (auto string = builder.toString()) >+ foo(*string); // Use string as before... >+ else >+ CRASH(); >+ >+ This makes failure extremely explicit. There's no true behavior >+ change: what would have crashed when appending now crashes when >+ retrieving the string. Pulling CRASH() out will give slightly >+ better crash signatures, and it makes the code very obvious about >+ failure. I purposefully don't "fix" any failure because these >+ should be done in a targeted manner with repro tests whenever >+ possible. I'm very wary of introducing bugs! >+ >+ When someone inevitably blames code back to this commit (because >+ hey the code is pretty ugly, and you might be surprised at seeing >+ CRASH() in your beautiful code) there are a few things which they >+ can do: >+ >+ 1. Change the else clause to handle failure rather than crash. In JavaScriptCore that's usually throwOutOfMemoryError. >+ 2. Change the code to directly use Fallible's .value() member, and let *that* crash instead. This makes the crash non-obvious in the code, which might be what you want. >+ 3. Change the code to detect failure at the earliest step of string building (likely the append calls), and do something sensible there. >+ >+ In no circumstance should code just dereference a Fallible without >+ knowing that its state holds a valid string. This code is >+ undefined behavior according to the std::expected specification >+ (whether our implementation should do something else is out of >+ scope for this patch): >+ >+ foo(*builder.toString()); // UB when allocation fails. >+ >+ * wtf/Assertions.cpp: >+ * wtf/DateMath.cpp: >+ (WTF::makeRFC2822DateString): >+ * wtf/JSONValues.cpp: >+ (WTF::JSONImpl::Value::toJSONString const): >+ * wtf/Logger.h: >+ (WTF::LogArgument::toString): >+ (WTF::LogArgument<Logger::LogSiteIdentifier>::toString): >+ * wtf/MediaTime.cpp: >+ (WTF::MediaTime::toString const): >+ * wtf/UUID.cpp: >+ (WTF::createCanonicalUUIDString): >+ * wtf/text/StringBuilder.cpp: >+ (WTF::StringBuilder::wouldOverflow): >+ (WTF::StringBuilder::outOfMemory): >+ (WTF::StringBuilder::resize): >+ (WTF::StringBuilder::allocateBuffer): >+ (WTF::StringBuilder::allocateBufferUpConvert): >+ (WTF::StringBuilder::reallocateBuffer<LChar>): >+ (WTF::StringBuilder::reallocateBuffer<UChar>): >+ (WTF::StringBuilder::reserveCapacity): >+ (WTF::StringBuilder::append): >+ (WTF::StringBuilder::appendNumber): >+ (WTF::StringBuilder::appendECMAScriptNumber): >+ (WTF::StringBuilder::appendFixedWidthNumber): >+ (WTF::StringBuilder::shrinkToFit): >+ * wtf/text/StringBuilder.h: >+ (WTF::StringBuilder::StringBuilder): >+ (WTF::StringBuilder::append): >+ (WTF::StringBuilder::appendLiteral): >+ (WTF::StringBuilder::toString): >+ (WTF::StringBuilder::toStringPreserveCapacity const): >+ (WTF::StringBuilder::toAtomicString const): >+ (WTF::StringBuilder::is8Bit const): >+ (WTF::StringBuilder::failed const): >+ (WTF::StringBuilder::operator[] const): >+ (WTF::StringBuilder:: const): >+ (WTF::StringBuilder::clear): >+ (WTF::StringBuilder::swap): >+ (WTF::equal): >+ (WTF::IntegerToStringConversionTrait<StringBuilder>::flush): >+ * wtf/text/StringBuilderJSON.cpp: >+ (WTF::StringBuilder::appendQuotedJSONString): >+ * wtf/text/StringImpl.cpp: >+ (WTF::StringImpl::reallocateInternal): >+ (WTF::StringImpl::reallocate): >+ (WTF::StringImpl::tryReallocate): >+ * wtf/text/StringImpl.h: >+ (WTF::StringImpl::tryCreateSubstringSharingImpl): >+ (WTF::StringImpl::createSubstringSharingImpl): >+ * wtf/text/TextStream.cpp: >+ (WTF::TextStream::release): >+ > 2018-04-25 Mark Lam <mark.lam@apple.com> > > Gardening: Speculative build fix for Windows 32-bit to compensate for MSVC's lack of smarts. >diff --git a/Source/WTF/wtf/Assertions.cpp b/Source/WTF/wtf/Assertions.cpp >index e15a092..d7c8319 100644 >--- a/Source/WTF/wtf/Assertions.cpp >+++ b/Source/WTF/wtf/Assertions.cpp >@@ -342,9 +342,11 @@ void WTFLoggingAccumulator::resetAccumulatedLogs() > String WTFLoggingAccumulator::getAndResetAccumulatedLogs() > { > Locker<Lock> locker(accumulatorLock); >- String result = loggingAccumulator.toString(); >- loggingAccumulator.clear(); >- return result; >+ if (auto result = loggingAccumulator.toString()) { >+ loggingAccumulator.clear(); >+ return *result; >+ } >+ CRASH(); > } > > static WTFLoggingAccumulator& loggingAccumulator() >diff --git a/Source/WTF/wtf/DateMath.cpp b/Source/WTF/wtf/DateMath.cpp >index 6db92eb..a8425f0 100644 >--- a/Source/WTF/wtf/DateMath.cpp >+++ b/Source/WTF/wtf/DateMath.cpp >@@ -1187,7 +1187,9 @@ String makeRFC2822DateString(unsigned dayOfWeek, unsigned day, unsigned month, u > appendTwoDigitNumber(stringBuilder, absoluteUTCOffset / 60); > appendTwoDigitNumber(stringBuilder, absoluteUTCOffset % 60); > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WTF >diff --git a/Source/WTF/wtf/JSONValues.cpp b/Source/WTF/wtf/JSONValues.cpp >index bde44ab..08c6227 100644 >--- a/Source/WTF/wtf/JSONValues.cpp >+++ b/Source/WTF/wtf/JSONValues.cpp >@@ -327,8 +327,11 @@ bool decodeString(const UChar* start, const UChar* end, String& output) > if (!decodeString(start, end, buffer)) > return false; > >- output = buffer.toString(); >- return true; >+ if (auto string = buffer.toString()) { >+ output = *string; >+ return true; >+ } >+ return false; > } > > RefPtr<JSON::Value> buildValue(const UChar* start, const UChar* end, const UChar** valueTokenEnd, int depth) >@@ -553,7 +556,9 @@ String Value::toJSONString() const > StringBuilder result; > result.reserveCapacity(512); > writeJSON(result); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool Value::asBoolean(bool& output) const >diff --git a/Source/WTF/wtf/Logger.h b/Source/WTF/wtf/Logger.h >index 6b01b58..48b8d82 100644 >--- a/Source/WTF/wtf/Logger.h >+++ b/Source/WTF/wtf/Logger.h >@@ -46,7 +46,12 @@ struct LogArgument { > template<typename U = T> static typename std::enable_if<std::is_same<U, double>::value, String>::type toString(double argument) { return String::number(argument); } > template<typename U = T> static typename std::enable_if<std::is_same<typename std::remove_reference<U>::type, AtomicString>::value, String>::type toString(AtomicString argument) { return argument.string(); } > template<typename U = T> static typename std::enable_if<std::is_same<typename std::remove_reference<U>::type, String>::value, String>::type toString(String argument) { return argument; } >- template<typename U = T> static typename std::enable_if<std::is_same<typename std::remove_reference<U>::type, StringBuilder*>::value, String>::type toString(StringBuilder* argument) { return argument->toString(); } >+ template<typename U = T> static typename std::enable_if<std::is_same<typename std::remove_reference<U>::type, StringBuilder*>::value, String>::type toString(StringBuilder* argument) >+ { >+ if (auto string = argument->toString()) >+ return *string; >+ CRASH(); >+ } > template<typename U = T> static typename std::enable_if<std::is_same<U, const char*>::value, String>::type toString(const char* argument) { return String(argument); } > template<size_t length> static String toString(const char (&argument)[length]) { return String(argument); } > }; >@@ -274,7 +279,9 @@ struct LogArgument<Logger::LogSiteIdentifier> { > builder.append('('); > appendUnsigned64AsHex(value.objectPtr, builder); > builder.appendLiteral(") "); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > }; > >diff --git a/Source/WTF/wtf/MediaTime.cpp b/Source/WTF/wtf/MediaTime.cpp >index 03050b5..1f77b47 100644 >--- a/Source/WTF/wtf/MediaTime.cpp >+++ b/Source/WTF/wtf/MediaTime.cpp >@@ -574,7 +574,9 @@ String MediaTime::toString() const > } > builder.appendNumber(toDouble()); > builder.append('}'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String MediaTime::toJSONString() const >diff --git a/Source/WTF/wtf/UUID.cpp b/Source/WTF/wtf/UUID.cpp >index fb5fe5b..b598f00 100644 >--- a/Source/WTF/wtf/UUID.cpp >+++ b/Source/WTF/wtf/UUID.cpp >@@ -56,7 +56,9 @@ String createCanonicalUUIDString() > builder.append('-'); > appendUnsignedAsHexFixedSize(randomData[2] & 0x0000ffff, builder, 4, Lowercase); > appendUnsignedAsHexFixedSize(randomData[3], builder, 8, Lowercase); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WTF >diff --git a/Source/WTF/wtf/text/StringBuilder.cpp b/Source/WTF/wtf/text/StringBuilder.cpp >index 85b0c21..2584c57 100644 >--- a/Source/WTF/wtf/text/StringBuilder.cpp >+++ b/Source/WTF/wtf/text/StringBuilder.cpp >@@ -1,5 +1,5 @@ > /* >- * Copyright (C) 2010, 2013, 2016 Apple Inc. All rights reserved. >+ * Copyright (C) 2010-2018 Apple Inc. All rights reserved. > * Copyright (C) 2012 Google Inc. All rights reserved. > * > * Redistribution and use in source and binary forms, with or without >@@ -62,26 +62,44 @@ void StringBuilder::reifyString() const > m_string = StringImpl::createSubstringSharingImpl(*m_buffer, 0, m_length); > } > >-void StringBuilder::resize(unsigned newSize) >+Unexpected<StringBuilder::Failure> StringBuilder::wouldOverflow() >+{ >+ m_failed = true; >+ return makeUnexpected(Failure::WouldOverflow); >+} >+ >+Unexpected<StringBuilder::Failure> StringBuilder::outOfMemory() >+{ >+ clear(); >+ m_failed = true; >+ return makeUnexpected(Failure::OutOfMemory); >+} >+ >+StringBuilder::Fallible<> StringBuilder::resize(unsigned newSize) > { > // Check newSize < m_length, hence m_length > 0. > ASSERT(newSize <= m_length); > if (newSize == m_length) >- return; >+ return { }; > ASSERT(m_length); > > // If there is a buffer, we only need to duplicate it if it has more than one ref. > if (m_buffer) { > m_string = String(); // Clear the string to remove the reference to m_buffer if any before checking the reference count of m_buffer. > if (!m_buffer->hasOneRef()) { >- if (m_buffer->is8Bit()) >- allocateBuffer(m_buffer->characters8(), m_buffer->length()); >- else >- allocateBuffer(m_buffer->characters16(), m_buffer->length()); >+ if (m_buffer->is8Bit()) { >+ auto allocated = allocateBuffer(m_buffer->characters8(), m_buffer->length()); >+ if (!allocated) >+ return allocated; >+ } else { >+ auto allocated = allocateBuffer(m_buffer->characters16(), m_buffer->length()); >+ if (!allocated) >+ return allocated; >+ } > } > m_length = newSize; > ASSERT(m_buffer->length() >= m_length); >- return; >+ return { }; > } > > // Since m_length && !m_buffer, the string must be valid in m_string, and m_string.length() > 0. >@@ -89,47 +107,60 @@ void StringBuilder::resize(unsigned newSize) > ASSERT(m_length == m_string.length()); > ASSERT(newSize < m_string.length()); > m_length = newSize; >- m_string = StringImpl::createSubstringSharingImpl(*m_string.impl(), 0, newSize); >+ if (auto created = StringImpl::tryCreateSubstringSharingImpl(*m_string.impl(), 0, newSize)) { >+ m_string = *created; >+ return { }; >+ } else >+ return outOfMemory(); > } > > // Allocate a new 8 bit buffer, copying in currentCharacters (these may come from either m_string > // or m_buffer, neither will be reassigned until the copy has completed). >-void StringBuilder::allocateBuffer(const LChar* currentCharacters, unsigned requiredLength) >+StringBuilder::Fallible<> StringBuilder::allocateBuffer(const LChar* currentCharacters, unsigned requiredLength) > { > ASSERT(m_is8Bit); > // Copy the existing data into a new buffer, set result to point to the end of the existing data. >- auto buffer = StringImpl::createUninitialized(requiredLength, m_bufferCharacters8); >+ auto buffer = StringImpl::tryCreateUninitialized(requiredLength, m_bufferCharacters8); >+ if (!buffer) >+ return outOfMemory(); > memcpy(m_bufferCharacters8, currentCharacters, static_cast<size_t>(m_length) * sizeof(LChar)); // This can't overflow. > > // Update the builder state. > m_buffer = WTFMove(buffer); > m_string = String(); > ASSERT(m_buffer->length() == requiredLength); >+ return { }; > } > > // Allocate a new 16 bit buffer, copying in currentCharacters (these may come from either m_string > // or m_buffer, neither will be reassigned until the copy has completed). >-void StringBuilder::allocateBuffer(const UChar* currentCharacters, unsigned requiredLength) >+StringBuilder::Fallible<> StringBuilder::allocateBuffer(const UChar* currentCharacters, unsigned requiredLength) > { > ASSERT(!m_is8Bit); > // Copy the existing data into a new buffer, set result to point to the end of the existing data. >- auto buffer = StringImpl::createUninitialized(requiredLength, m_bufferCharacters16); >+ auto buffer = StringImpl::tryCreateUninitialized(requiredLength, m_bufferCharacters16); >+ if (!buffer) >+ return outOfMemory(); > memcpy(m_bufferCharacters16, currentCharacters, static_cast<size_t>(m_length) * sizeof(UChar)); // This can't overflow. > > // Update the builder state. > m_buffer = WTFMove(buffer); > m_string = String(); > ASSERT(m_buffer->length() == requiredLength); >+ return { }; > } > > // Allocate a new 16 bit buffer, copying in currentCharacters (which is 8 bit and may come > // from either m_string or m_buffer, neither will be reassigned until the copy has completed). >-void StringBuilder::allocateBufferUpConvert(const LChar* currentCharacters, unsigned requiredLength) >+StringBuilder::Fallible<> StringBuilder::allocateBufferUpConvert(const LChar* currentCharacters, unsigned requiredLength) > { > ASSERT(m_is8Bit); > ASSERT(requiredLength >= m_length); > // Copy the existing data into a new buffer, set result to point to the end of the existing data. >- auto buffer = StringImpl::createUninitialized(requiredLength, m_bufferCharacters16); >+ auto buffer = StringImpl::tryCreateUninitialized(requiredLength, m_bufferCharacters16); >+ if (!buffer) >+ return outOfMemory(); >+ > for (unsigned i = 0; i < m_length; ++i) > m_bufferCharacters16[i] = currentCharacters[i]; > >@@ -139,10 +170,11 @@ void StringBuilder::allocateBufferUpConvert(const LChar* currentCharacters, unsi > m_buffer = WTFMove(buffer); > m_string = String(); > ASSERT(m_buffer->length() == requiredLength); >+ return { }; > } > > template <> >-void StringBuilder::reallocateBuffer<LChar>(unsigned requiredLength) >+StringBuilder::Fallible<> StringBuilder::reallocateBuffer<LChar>(unsigned requiredLength) > { > // If the buffer has only one ref (by this StringBuilder), reallocate it, > // otherwise fall back to "allocate and copy" method. >@@ -151,65 +183,89 @@ void StringBuilder::reallocateBuffer<LChar>(unsigned requiredLength) > ASSERT(m_is8Bit); > ASSERT(m_buffer->is8Bit()); > >- if (m_buffer->hasOneRef()) >- m_buffer = StringImpl::reallocate(m_buffer.releaseNonNull(), requiredLength, m_bufferCharacters8); >- else >- allocateBuffer(m_buffer->characters8(), requiredLength); >+ if (m_buffer->hasOneRef()) { >+ auto reallocated = StringImpl::tryReallocate(m_buffer.releaseNonNull(), requiredLength, m_bufferCharacters8); >+ if (!reallocated) >+ return outOfMemory(); >+ m_buffer = reallocated.get(); >+ } else { >+ auto allocated = allocateBuffer(m_buffer->characters8(), requiredLength); >+ if (!allocated) >+ return allocated; >+ } > ASSERT(m_buffer->length() == requiredLength); >+ return { }; > } > > template <> >-void StringBuilder::reallocateBuffer<UChar>(unsigned requiredLength) >+StringBuilder::Fallible<> StringBuilder::reallocateBuffer<UChar>(unsigned requiredLength) > { > // If the buffer has only one ref (by this StringBuilder), reallocate it, > // otherwise fall back to "allocate and copy" method. > m_string = String(); > >- if (m_buffer->is8Bit()) >- allocateBufferUpConvert(m_buffer->characters8(), requiredLength); >+ if (m_buffer->is8Bit()) { >+ auto allocated = allocateBufferUpConvert(m_buffer->characters8(), requiredLength); >+ if (!allocated) >+ return allocated; >+ } > else if (m_buffer->hasOneRef()) > m_buffer = StringImpl::reallocate(m_buffer.releaseNonNull(), requiredLength, m_bufferCharacters16); > else > allocateBuffer(m_buffer->characters16(), requiredLength); > ASSERT(m_buffer->length() == requiredLength); >+ return { }; > } > >-void StringBuilder::reserveCapacity(unsigned newCapacity) >+StringBuilder::Fallible<> StringBuilder::reserveCapacity(unsigned newCapacity) > { > if (m_buffer) { > // If there is already a buffer, then grow if necessary. > if (newCapacity > m_buffer->length()) { >- if (m_buffer->is8Bit()) >- reallocateBuffer<LChar>(newCapacity); >- else >- reallocateBuffer<UChar>(newCapacity); >+ if (m_buffer->is8Bit()) { >+ auto reallocated = reallocateBuffer<LChar>(newCapacity); >+ if (!reallocated) >+ return reallocated; >+ } else { >+ auto reallocated = reallocateBuffer<UChar>(newCapacity); >+ if (!reallocated) >+ return reallocated; >+ } > } > } else { > // Grow the string, if necessary. > if (newCapacity > m_length) { > if (!m_length) { > LChar* nullPlaceholder = 0; >- allocateBuffer(nullPlaceholder, newCapacity); >- } else if (m_string.is8Bit()) >- allocateBuffer(m_string.characters8(), newCapacity); >- else >- allocateBuffer(m_string.characters16(), newCapacity); >+ auto allocated = allocateBuffer(nullPlaceholder, newCapacity); >+ if (!allocated) >+ return allocated; >+ } else if (m_string.is8Bit()) { >+ auto allocated = allocateBuffer(m_string.characters8(), newCapacity); >+ if (!allocated) >+ return allocated; >+ } else { >+ auto allocated = allocateBuffer(m_string.characters16(), newCapacity); >+ if (!allocated) >+ return allocated; >+ } > } > } > ASSERT(!newCapacity || m_buffer->length() >= newCapacity); >+ return { }; > } > > // Make 'length' additional capacity be available in m_buffer, update m_string & m_length, > // return a pointer to the newly allocated storage. > template <typename CharType> >-ALWAYS_INLINE CharType* StringBuilder::appendUninitialized(unsigned length) >+ALWAYS_INLINE StringBuilder::Fallible<CharType*> StringBuilder::appendUninitialized(unsigned length) > { > ASSERT(length); > > // Calculate the new size of the builder after appending. > unsigned requiredLength = length + m_length; > if (requiredLength < length) >- CRASH(); >+ return wouldOverflow(); > > if ((m_buffer) && (requiredLength <= m_buffer->length())) { > // If the buffer is valid it must be at least as long as the current builder contents! >@@ -226,7 +282,7 @@ ALWAYS_INLINE CharType* StringBuilder::appendUninitialized(unsigned length) > // Make 'length' additional capacity be available in m_buffer, update m_string & m_length, > // return a pointer to the newly allocated storage. > template <typename CharType> >-CharType* StringBuilder::appendUninitializedSlow(unsigned requiredLength) >+StringBuilder::Fallible<CharType*> StringBuilder::appendUninitializedSlow(unsigned requiredLength) > { > ASSERT(requiredLength); > >@@ -234,10 +290,14 @@ CharType* StringBuilder::appendUninitializedSlow(unsigned requiredLength) > // If the buffer is valid it must be at least as long as the current builder contents! > ASSERT(m_buffer->length() >= m_length); > >- reallocateBuffer<CharType>(expandedCapacity(capacity(), requiredLength)); >+ auto reallocated = reallocateBuffer<CharType>(expandedCapacity(capacity(), requiredLength)); >+ if (!reallocated) >+ return makeUnexpected(reallocated.error()); > } else { > ASSERT(m_string.length() == m_length); >- allocateBuffer(m_length ? m_string.characters<CharType>() : 0, expandedCapacity(capacity(), requiredLength)); >+ auto allocated = allocateBuffer(m_length ? m_string.characters<CharType>() : 0, expandedCapacity(capacity(), requiredLength)); >+ if (!allocated) >+ return makeUnexpected(allocated.error()); > } > > CharType* result = getBufferCharacters<CharType>() + m_length; >@@ -246,10 +306,10 @@ CharType* StringBuilder::appendUninitializedSlow(unsigned requiredLength) > return result; > } > >-void StringBuilder::append(const UChar* characters, unsigned length) >+StringBuilder::Fallible<> StringBuilder::append(const UChar* characters, unsigned length) > { > if (!length) >- return; >+ return { }; > > ASSERT(characters); > >@@ -257,40 +317,51 @@ void StringBuilder::append(const UChar* characters, unsigned length) > if (length == 1 && !(*characters & ~0xff)) { > // Append as 8 bit character > LChar lChar = static_cast<LChar>(*characters); >- append(&lChar, 1); >- return; >+ return append(&lChar, 1); > } > > // Calculate the new size of the builder after appending. > unsigned requiredLength = length + m_length; > if (requiredLength < length) >- CRASH(); >+ return wouldOverflow(); > > if (m_buffer) { > // If the buffer is valid it must be at least as long as the current builder contents! > ASSERT(m_buffer->length() >= m_length); > >- allocateBufferUpConvert(m_buffer->characters8(), expandedCapacity(capacity(), requiredLength)); >+ auto allocated = allocateBufferUpConvert(m_buffer->characters8(), expandedCapacity(capacity(), requiredLength)); >+ if (!allocated) >+ return allocated; > } else { > ASSERT(m_string.length() == m_length); >- allocateBufferUpConvert(m_string.isNull() ? 0 : m_string.characters8(), expandedCapacity(capacity(), requiredLength)); >+ auto allocated = allocateBufferUpConvert(m_string.isNull() ? 0 : m_string.characters8(), expandedCapacity(capacity(), requiredLength)); >+ if (!allocated) >+ return allocated; > } > > memcpy(m_bufferCharacters16 + m_length, characters, static_cast<size_t>(length) * sizeof(UChar)); > m_length = requiredLength; >- } else >- memcpy(appendUninitialized<UChar>(length), characters, static_cast<size_t>(length) * sizeof(UChar)); >+ } else { >+ if (auto appended = appendUninitialized<UChar>(length)) >+ memcpy(*appended, characters, static_cast<size_t>(length) * sizeof(UChar)); >+ else >+ return makeUnexpected(appended.error()); >+ } > ASSERT(m_buffer->length() >= m_length); >+ return { }; > } > >-void StringBuilder::append(const LChar* characters, unsigned length) >+StringBuilder::Fallible<> StringBuilder::append(const LChar* characters, unsigned length) > { > if (!length) >- return; >+ return { }; > ASSERT(characters); > > if (m_is8Bit) { >- LChar* dest = appendUninitialized<LChar>(length); >+ auto appended = appendUninitialized<LChar>(length); >+ if (!appended) >+ return makeUnexpected(appended.error()); >+ LChar* dest = *appended; > if (length > 8) > memcpy(dest, characters, static_cast<size_t>(length) * sizeof(LChar)); > else { >@@ -299,73 +370,79 @@ void StringBuilder::append(const LChar* characters, unsigned length) > *(dest++) = *(characters++); > } > } else { >- UChar* dest = appendUninitialized<UChar>(length); >+ auto appended = appendUninitialized<UChar>(length); >+ if (!appended) >+ return makeUnexpected(appended.error()); >+ UChar* dest = *appended; > const LChar* end = characters + length; > while (characters < end) > *(dest++) = *(characters++); > } >+ return { }; > } > > #if USE(CF) > >-void StringBuilder::append(CFStringRef string) >+StringBuilder::Fallible<> StringBuilder::append(CFStringRef string) > { > // Fast path: avoid constructing a temporary String when possible. > if (auto* characters = CFStringGetCStringPtr(string, kCFStringEncodingISOLatin1)) { >- append(reinterpret_cast<const LChar*>(characters), CFStringGetLength(string)); >- return; >+ if (auto appended = append(reinterpret_cast<const LChar*>(characters), CFStringGetLength(string))) >+ return { }; >+ else >+ return appended; > } >- append(String(string)); >+ return append(String(string)); > } > > #endif > >-void StringBuilder::appendNumber(int number) >+StringBuilder::Fallible<> StringBuilder::appendNumber(int number) > { >- numberToStringSigned<StringBuilder>(number, this); >+ return numberToStringSigned<StringBuilder>(number, this); > } > >-void StringBuilder::appendNumber(unsigned int number) >+StringBuilder::Fallible<> StringBuilder::appendNumber(unsigned int number) > { >- numberToStringUnsigned<StringBuilder>(number, this); >+ return numberToStringUnsigned<StringBuilder>(number, this); > } > >-void StringBuilder::appendNumber(long number) >+StringBuilder::Fallible<> StringBuilder::appendNumber(long number) > { >- numberToStringSigned<StringBuilder>(number, this); >+ return numberToStringSigned<StringBuilder>(number, this); > } > >-void StringBuilder::appendNumber(unsigned long number) >+StringBuilder::Fallible<> StringBuilder::appendNumber(unsigned long number) > { >- numberToStringUnsigned<StringBuilder>(number, this); >+ return numberToStringUnsigned<StringBuilder>(number, this); > } > >-void StringBuilder::appendNumber(long long number) >+StringBuilder::Fallible<> StringBuilder::appendNumber(long long number) > { >- numberToStringSigned<StringBuilder>(number, this); >+ return numberToStringSigned<StringBuilder>(number, this); > } > >-void StringBuilder::appendNumber(unsigned long long number) >+StringBuilder::Fallible<> StringBuilder::appendNumber(unsigned long long number) > { >- numberToStringUnsigned<StringBuilder>(number, this); >+ return numberToStringUnsigned<StringBuilder>(number, this); > } > >-void StringBuilder::appendNumber(double number, unsigned precision, TrailingZerosTruncatingPolicy trailingZerosTruncatingPolicy) >+StringBuilder::Fallible<> StringBuilder::appendNumber(double number, unsigned precision, TrailingZerosTruncatingPolicy trailingZerosTruncatingPolicy) > { > NumberToStringBuffer buffer; >- append(numberToFixedPrecisionString(number, precision, buffer, trailingZerosTruncatingPolicy == TruncateTrailingZeros)); >+ return append(numberToFixedPrecisionString(number, precision, buffer, trailingZerosTruncatingPolicy == TruncateTrailingZeros)); > } > >-void StringBuilder::appendECMAScriptNumber(double number) >+StringBuilder::Fallible<> StringBuilder::appendECMAScriptNumber(double number) > { > NumberToStringBuffer buffer; >- append(numberToString(number, buffer)); >+ return append(numberToString(number, buffer)); > } > >-void StringBuilder::appendFixedWidthNumber(double number, unsigned decimalPlaces) >+StringBuilder::Fallible<> StringBuilder::appendFixedWidthNumber(double number, unsigned decimalPlaces) > { > NumberToStringBuffer buffer; >- append(numberToFixedWidthString(number, decimalPlaces, buffer)); >+ return append(numberToFixedWidthString(number, decimalPlaces, buffer)); > } > > bool StringBuilder::canShrink() const >@@ -374,15 +451,21 @@ bool StringBuilder::canShrink() const > return m_buffer && m_buffer->length() > (m_length + (m_length >> 2)); > } > >-void StringBuilder::shrinkToFit() >+StringBuilder::Fallible<> StringBuilder::shrinkToFit() > { > if (canShrink()) { >- if (m_is8Bit) >- reallocateBuffer<LChar>(m_length); >- else >- reallocateBuffer<UChar>(m_length); >+ if (m_is8Bit) { >+ auto reallocated = reallocateBuffer<LChar>(m_length); >+ if (!reallocated) >+ return reallocated; >+ } else { >+ auto reallocated = reallocateBuffer<UChar>(m_length); >+ if (!reallocated) >+ return reallocated; >+ } > m_string = WTFMove(m_buffer); > } >+ return { }; > } > > } // namespace WTF >diff --git a/Source/WTF/wtf/text/StringBuilder.h b/Source/WTF/wtf/text/StringBuilder.h >index 8e4c720..2c0ddcc 100644 >--- a/Source/WTF/wtf/text/StringBuilder.h >+++ b/Source/WTF/wtf/text/StringBuilder.h >@@ -1,5 +1,5 @@ > /* >- * Copyright (C) 2009-2010, 2012-2013, 2016 Apple Inc. All rights reserved. >+ * Copyright (C) 2009-2018 Apple Inc. All rights reserved. > * Copyright (C) 2012 Google Inc. All rights reserved. > * > * Redistribution and use in source and binary forms, with or without >@@ -27,6 +27,7 @@ > #ifndef StringBuilder_h > #define StringBuilder_h > >+#include <wtf/Expected.h> > #include <wtf/text/AtomicString.h> > #include <wtf/text/IntegerToStringConversion.h> > #include <wtf/text/StringView.h> >@@ -40,28 +41,33 @@ class StringBuilder { > > public: > StringBuilder() >- : m_length(0) >- , m_is8Bit(true) >- , m_bufferCharacters8(nullptr) >+ : m_bufferCharacters8(nullptr) > { > } > StringBuilder(StringBuilder&&) = default; > StringBuilder& operator=(StringBuilder&&) = default; > >- WTF_EXPORT_PRIVATE void append(const UChar*, unsigned); >- WTF_EXPORT_PRIVATE void append(const LChar*, unsigned); >+ enum class Failure { >+ WouldOverflow, >+ OutOfMemory, >+ UnhandledFailure, >+ }; >+ template<typename Expect = void> using Fallible = Expected<Expect, StringBuilder::Failure>; >+ >+ WTF_EXPORT_PRIVATE Fallible<> append(const UChar*, unsigned); >+ WTF_EXPORT_PRIVATE Fallible<> append(const LChar*, unsigned); > >- ALWAYS_INLINE void append(const char* characters, unsigned length) { append(reinterpret_cast<const LChar*>(characters), length); } >+ ALWAYS_INLINE Fallible<> append(const char* characters, unsigned length) { return append(reinterpret_cast<const LChar*>(characters), length); } > >- void append(const AtomicString& atomicString) >+ Fallible<> append(const AtomicString& atomicString) > { >- append(atomicString.string()); >+ return append(atomicString.string()); > } > >- void append(const String& string) >+ Fallible<> append(const String& string) > { > if (!string.length()) >- return; >+ return { }; > > // If we're appending to an empty string, and there is not a buffer (reserveCapacity has not been called) > // then just retain the string. >@@ -69,151 +75,164 @@ public: > m_string = string; > m_length = string.length(); > m_is8Bit = m_string.is8Bit(); >- return; >+ return { }; > } > > if (string.is8Bit()) >- append(string.characters8(), string.length()); >+ return append(string.characters8(), string.length()); > else >- append(string.characters16(), string.length()); >+ return append(string.characters16(), string.length()); > } > >- void append(const StringBuilder& other) >+ Fallible<> append(const StringBuilder& other) > { >+ if (other.failed()) >+ return makeUnexpected(Failure::UnhandledFailure); > if (!other.m_length) >- return; >+ return { }; > > // If we're appending to an empty string, and there is not a buffer (reserveCapacity has not been called) > // then just retain the string. > if (!m_length && !m_buffer && !other.m_string.isNull()) { > m_string = other.m_string; > m_length = other.m_length; >- return; >+ return { }; > } > > if (other.is8Bit()) >- append(other.characters8(), other.m_length); >+ return append(*other.characters8(), other.m_length); > else >- append(other.characters16(), other.m_length); >+ return append(*other.characters16(), other.m_length); > } > >- void append(StringView stringView) >+ Fallible<> append(StringView stringView) > { > if (stringView.is8Bit()) >- append(stringView.characters8(), stringView.length()); >+ return append(stringView.characters8(), stringView.length()); > else >- append(stringView.characters16(), stringView.length()); >+ return append(stringView.characters16(), stringView.length()); > } > > #if USE(CF) >- WTF_EXPORT_PRIVATE void append(CFStringRef); >+ WTF_EXPORT_PRIVATE Fallible<> append(CFStringRef); > #endif > #if USE(CF) && defined(__OBJC__) >- void append(NSString *string) { append((__bridge CFStringRef)string); } >+ Fallible<> append(NSString *string) { return append((__bridge CFStringRef)string); } > #endif > >- void append(const String& string, unsigned offset, unsigned length) >+ Fallible<> append(const String& string, unsigned offset, unsigned length) > { > if (!string.length()) >- return; >+ return { }; > > if ((offset + length) > string.length()) >- return; >+ return { }; > > if (string.is8Bit()) >- append(string.characters8() + offset, length); >+ return append(string.characters8() + offset, length); > else >- append(string.characters16() + offset, length); >+ return append(string.characters16() + offset, length); > } > >- void append(const char* characters) >+ Fallible<> append(const char* characters) > { > if (characters) >- append(characters, strlen(characters)); >+ return append(characters, strlen(characters)); >+ return { }; > } > >- void append(UChar c) >+ Fallible<> append(UChar c) > { > if (m_buffer && m_length < m_buffer->length() && m_string.isNull()) { > if (!m_is8Bit) { > m_bufferCharacters16[m_length++] = c; >- return; >+ return { }; > } > > if (!(c & ~0xff)) { > m_bufferCharacters8[m_length++] = static_cast<LChar>(c); >- return; >+ return { }; > } > } >- append(&c, 1); >+ return append(&c, 1); > } > >- void append(LChar c) >+ Fallible<> append(LChar c) > { > if (m_buffer && m_length < m_buffer->length() && m_string.isNull()) { > if (m_is8Bit) > m_bufferCharacters8[m_length++] = c; > else > m_bufferCharacters16[m_length++] = c; >- } else >- append(&c, 1); >+ return { }; >+ } >+ return append(&c, 1); > } > >- void append(char c) >+ Fallible<> append(char c) > { >- append(static_cast<LChar>(c)); >+ return append(static_cast<LChar>(c)); > } > >- void append(UChar32 c) >+ Fallible<> append(UChar32 c) > { >- if (U_IS_BMP(c)) { >- append(static_cast<UChar>(c)); >- return; >- } >- append(U16_LEAD(c)); >- append(U16_TRAIL(c)); >+ if (U_IS_BMP(c)) >+ return append(static_cast<UChar>(c)); >+ auto appended = append(U16_LEAD(c)); >+ if (!appended) >+ return appended; >+ return append(U16_TRAIL(c)); > } > >- WTF_EXPORT_PRIVATE bool appendQuotedJSONString(const String&); >+ WTF_EXPORT_PRIVATE Fallible<> appendQuotedJSONString(const String&); > > template<unsigned characterCount> >- ALWAYS_INLINE void appendLiteral(const char (&characters)[characterCount]) { append(characters, characterCount - 1); } >- >- WTF_EXPORT_PRIVATE void appendNumber(int); >- WTF_EXPORT_PRIVATE void appendNumber(unsigned int); >- WTF_EXPORT_PRIVATE void appendNumber(long); >- WTF_EXPORT_PRIVATE void appendNumber(unsigned long); >- WTF_EXPORT_PRIVATE void appendNumber(long long); >- WTF_EXPORT_PRIVATE void appendNumber(unsigned long long); >- WTF_EXPORT_PRIVATE void appendNumber(double, unsigned precision = 6, TrailingZerosTruncatingPolicy = TruncateTrailingZeros); >- WTF_EXPORT_PRIVATE void appendECMAScriptNumber(double); >- WTF_EXPORT_PRIVATE void appendFixedWidthNumber(double, unsigned decimalPlaces); >- >- String toString() >+ ALWAYS_INLINE Fallible<> appendLiteral(const char (&characters)[characterCount]) { return append(characters, characterCount - 1); } >+ >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(int); >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(unsigned int); >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(long); >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(unsigned long); >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(long long); >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(unsigned long long); >+ WTF_EXPORT_PRIVATE Fallible<> appendNumber(double, unsigned precision = 6, TrailingZerosTruncatingPolicy = TruncateTrailingZeros); >+ WTF_EXPORT_PRIVATE Fallible<> appendECMAScriptNumber(double); >+ WTF_EXPORT_PRIVATE Fallible<> appendFixedWidthNumber(double, unsigned decimalPlaces); >+ >+ WARN_UNUSED_RETURN Fallible<String> toString() > { >- shrinkToFit(); >- if (m_string.isNull()) >- reifyString(); >- return m_string; >+ if (m_failed) >+ return makeUnexpected(Failure::UnhandledFailure); >+ if (auto shrank = shrinkToFit()) { >+ if (m_string.isNull()) >+ reifyString(); >+ return m_string; >+ } else >+ return makeUnexpected(shrank.error()); > } > >- const String& toStringPreserveCapacity() const >+ WARN_UNUSED_RETURN Fallible<String> toStringPreserveCapacity() const > { >+ if (m_failed) >+ return makeUnexpected(Failure::UnhandledFailure); > if (m_string.isNull()) > reifyString(); > return m_string; > } > >- AtomicString toAtomicString() const >+ WARN_UNUSED_RETURN Fallible<AtomicString> toAtomicString() const > { >+ if (m_failed) >+ return makeUnexpected(Failure::UnhandledFailure); >+ > if (!m_length) > return emptyAtom(); > > // If the buffer is sufficiently over-allocated, make a new AtomicString from a copy so its buffer is not so large. > if (canShrink()) { > if (is8Bit()) >- return AtomicString(characters8(), length()); >- return AtomicString(characters16(), length()); >+ return AtomicString(*characters8(), length()); >+ return AtomicString(*characters16(), length()); > } > > if (!m_string.isNull()) >@@ -230,29 +249,37 @@ public: > > bool isEmpty() const { return !m_length; } > >- WTF_EXPORT_PRIVATE void reserveCapacity(unsigned newCapacity); >+ WTF_EXPORT_PRIVATE Fallible<> reserveCapacity(unsigned newCapacity); > > unsigned capacity() const > { > return m_buffer ? m_buffer->length() : m_length; > } > >- WTF_EXPORT_PRIVATE void resize(unsigned newSize); >+ WTF_EXPORT_PRIVATE Fallible<> resize(unsigned newSize); > > WTF_EXPORT_PRIVATE bool canShrink() const; > >- WTF_EXPORT_PRIVATE void shrinkToFit(); >+ WTF_EXPORT_PRIVATE Fallible<> shrinkToFit(); > >- UChar operator[](unsigned i) const >+ bool is8Bit() const { return m_is8Bit; } >+ >+ bool failed() const { return m_failed; } >+ >+ Fallible<UChar> operator[](unsigned i) const > { >+ if (m_failed) >+ return makeUnexpected(Failure::UnhandledFailure); > ASSERT_WITH_SECURITY_IMPLICATION(i < m_length); > if (m_is8Bit) >- return characters8()[i]; >- return characters16()[i]; >+ return (*characters8())[i]; >+ return (*characters16())[i]; > } > >- const LChar* characters8() const >+ Fallible<const LChar*> characters8() const > { >+ if (m_failed) >+ return makeUnexpected(Failure::UnhandledFailure); > ASSERT(m_is8Bit); > if (!m_length) > return 0; >@@ -262,8 +289,10 @@ public: > return m_buffer->characters8(); > } > >- const UChar* characters16() const >+ Fallible<const UChar*> characters16() const > { >+ if (m_failed) >+ return makeUnexpected(Failure::UnhandledFailure); > ASSERT(!m_is8Bit); > if (!m_length) > return 0; >@@ -272,16 +301,15 @@ public: > ASSERT(m_buffer); > return m_buffer->characters16(); > } >- >- bool is8Bit() const { return m_is8Bit; } > > void clear() > { > m_length = 0; > m_string = String(); > m_buffer = nullptr; >- m_bufferCharacters8 = 0; > m_is8Bit = true; >+ m_failed = false; >+ m_bufferCharacters8 = 0; > } > > void swap(StringBuilder& stringBuilder) >@@ -290,28 +318,32 @@ public: > m_string.swap(stringBuilder.m_string); > m_buffer.swap(stringBuilder.m_buffer); > std::swap(m_is8Bit, stringBuilder.m_is8Bit); >+ std::swap(m_failed, stringBuilder.m_failed); > std::swap(m_bufferCharacters8, stringBuilder.m_bufferCharacters8); > ASSERT(!m_buffer || m_buffer->length() >= m_length); > } > > private: >- void allocateBuffer(const LChar* currentCharacters, unsigned requiredLength); >- void allocateBuffer(const UChar* currentCharacters, unsigned requiredLength); >- void allocateBufferUpConvert(const LChar* currentCharacters, unsigned requiredLength); >+ Fallible<> allocateBuffer(const LChar* currentCharacters, unsigned requiredLength); >+ Fallible<> allocateBuffer(const UChar* currentCharacters, unsigned requiredLength); >+ Fallible<> allocateBufferUpConvert(const LChar* currentCharacters, unsigned requiredLength); > template <typename CharType> >- void reallocateBuffer(unsigned requiredLength); >+ Fallible<> reallocateBuffer(unsigned requiredLength); > template <typename CharType> >- ALWAYS_INLINE CharType* appendUninitialized(unsigned length); >+ ALWAYS_INLINE Fallible<CharType*> appendUninitialized(unsigned length); > template <typename CharType> >- CharType* appendUninitializedSlow(unsigned length); >+ Fallible<CharType*> appendUninitializedSlow(unsigned length); > template <typename CharType> >- ALWAYS_INLINE CharType * getBufferCharacters(); >+ ALWAYS_INLINE CharType* getBufferCharacters(); > WTF_EXPORT_PRIVATE void reifyString() const; >+ WARN_UNUSED_RETURN Unexpected<Failure> wouldOverflow(); >+ WARN_UNUSED_RETURN Unexpected<Failure> outOfMemory(); > >- unsigned m_length; >+ unsigned m_length { 0 }; > mutable String m_string; > RefPtr<StringImpl> m_buffer; >- bool m_is8Bit; >+ bool m_is8Bit { true }; >+ bool m_failed { false }; > union { > LChar* m_bufferCharacters8; > UChar* m_bufferCharacters16; >@@ -333,20 +365,48 @@ ALWAYS_INLINE UChar* StringBuilder::getBufferCharacters<UChar>() > } > > template <typename CharType> >-bool equal(const StringBuilder& s, const CharType* buffer, unsigned length) >+inline bool equal(const StringBuilder& s, const CharType* buffer, unsigned length) > { >+ if (s.failed()) >+ return false; >+ > if (s.length() != length) > return false; > > if (s.is8Bit()) >- return equal(s.characters8(), buffer, length); >+ return equal(*s.characters8(), buffer, length); > >- return equal(s.characters16(), buffer, length); >+ return equal(*s.characters16(), buffer, length); >+} >+ >+inline bool equal(const StringBuilder& a, const StringBuilder& b) >+{ >+ if (a.failed() || b.failed()) >+ return a.failed() == b.failed(); >+ >+ if (a.length() != b.length()) >+ return false; >+ >+ if (!a.length()) >+ return true; >+ >+ if (a.is8Bit()) { >+ if (b.is8Bit()) >+ return equal(*a.characters8(), *b.characters8(), a.length()); >+ return equal(*a.characters8(), *b.characters16(), a.length()); >+ } >+ >+ if (b.is8Bit()) >+ return equal(*a.characters16(), *b.characters8(), a.length()); >+ return equal(*a.characters16(), *b.characters16(), a.length()); > } > > template <typename StringType> >-bool equal(const StringBuilder& a, const StringType& b) >+inline bool equal(const StringBuilder& a, const StringType& b) > { >+ if (a.failed()) >+ return false; >+ > if (a.length() != b.length()) > return false; > >@@ -355,13 +415,13 @@ bool equal(const StringBuilder& a, const StringType& b) > > if (a.is8Bit()) { > if (b.is8Bit()) >- return equal(a.characters8(), b.characters8(), a.length()); >- return equal(a.characters8(), b.characters16(), a.length()); >+ return equal(*a.characters8(), b.characters8(), a.length()); >+ return equal(*a.characters8(), b.characters16(), a.length()); > } > > if (b.is8Bit()) >- return equal(a.characters16(), b.characters8(), a.length()); >- return equal(a.characters16(), b.characters16(), a.length()); >+ return equal(*a.characters16(), b.characters8(), a.length()); >+ return equal(*a.characters16(), b.characters16(), a.length()); > } > > inline bool operator==(const StringBuilder& a, const StringBuilder& b) { return equal(a, b); } >@@ -372,9 +432,12 @@ inline bool operator==(const String& a, const StringBuilder& b) { return equal(b > inline bool operator!=(const String& a, const StringBuilder& b) { return !equal(b, a); } > > template<> struct IntegerToStringConversionTrait<StringBuilder> { >- using ReturnType = void; >+ using ReturnType = StringBuilder::Fallible<>; > using AdditionalArgumentType = StringBuilder; >- static void flush(LChar* characters, unsigned length, StringBuilder* stringBuilder) { stringBuilder->append(characters, length); } >+ static ReturnType flush(LChar* characters, unsigned length, StringBuilder* stringBuilder) >+ { >+ return stringBuilder->append(characters, length); >+ } > }; > > } // namespace WTF >diff --git a/Source/WTF/wtf/text/StringBuilderJSON.cpp b/Source/WTF/wtf/text/StringBuilderJSON.cpp >index 226295e..70dbb86 100644 >--- a/Source/WTF/wtf/text/StringBuilderJSON.cpp >+++ b/Source/WTF/wtf/text/StringBuilderJSON.cpp >@@ -1,5 +1,5 @@ > /* >- * Copyright (C) 2010, 2013, 2016 Apple Inc. All rights reserved. >+ * Copyright (C) 2010-2018 Apple Inc. All rights reserved. > * Copyright (C) 2012 Google Inc. All rights reserved. > * Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>. All rights reserved. > * Copyright (C) 2017 Mozilla Foundation. All rights reserved. >@@ -74,7 +74,7 @@ ALWAYS_INLINE static void appendQuotedJSONStringInternal(OutputCharacterType*& o > } > } > >-bool StringBuilder::appendQuotedJSONString(const String& string) >+StringBuilder::Fallible<> StringBuilder::appendQuotedJSONString(const String& string) > { > // Make sure we have enough buffer space to append this string without having > // to worry about reallocating in the middle. >@@ -85,20 +85,21 @@ bool StringBuilder::appendQuotedJSONString(const String& string) > maximumCapacityRequired += 2 + stringLength * 6; > unsigned allocationSize; > if (CheckedState::DidOverflow == maximumCapacityRequired.safeGet(allocationSize)) >- return false; >+ return wouldOverflow(); > // This max() is here to allow us to allocate sizes between the range [2^31, 2^32 - 2] because roundUpToPowerOfTwo(1<<31 + some int smaller than 1<<31) == 0. > // FIXME: roundUpToPowerOfTwo should take Checked<unsigned> and abort if it fails to round up. > // https://bugs.webkit.org/show_bug.cgi?id=176086 > allocationSize = std::max(allocationSize, roundUpToPowerOfTwo(allocationSize)); > >- // Allocating this much will definitely fail. >- if (allocationSize >= 0x80000000) >- return false; >- >- if (is8Bit() && !string.is8Bit()) >- allocateBufferUpConvert(m_bufferCharacters8, allocationSize); >- else >- reserveCapacity(allocationSize); >+ if (is8Bit() && !string.is8Bit()) { >+ auto allocated = allocateBufferUpConvert(m_bufferCharacters8, allocationSize); >+ if (!allocated) >+ return allocated; >+ } else { >+ auto reserved = reserveCapacity(allocationSize); >+ if (!reserved) >+ return reserved; >+ } > ASSERT(m_buffer->length() >= allocationSize); > > if (is8Bit()) { >@@ -119,7 +120,7 @@ bool StringBuilder::appendQuotedJSONString(const String& string) > m_length = output - m_bufferCharacters16; > } > ASSERT(m_buffer->length() >= m_length); >- return true; >+ return { }; > } > > } // namespace WTF >diff --git a/Source/WTF/wtf/text/StringImpl.cpp b/Source/WTF/wtf/text/StringImpl.cpp >index 774876b..eed09aa 100644 >--- a/Source/WTF/wtf/text/StringImpl.cpp >+++ b/Source/WTF/wtf/text/StringImpl.cpp >@@ -206,22 +206,24 @@ Ref<StringImpl> StringImpl::createUninitialized(unsigned length, UChar*& data) > return createUninitializedInternal(length, data); > } > >-template<typename CharacterType> inline Ref<StringImpl> StringImpl::reallocateInternal(Ref<StringImpl>&& originalString, unsigned length, CharacterType*& data) >+template<typename CharacterType> inline RefPtr<StringImpl> StringImpl::reallocateInternal(Ref<StringImpl>&& originalString, unsigned length, CharacterType*& data) > { > ASSERT(originalString->hasOneRef()); > ASSERT(originalString->bufferOwnership() == BufferInternal); > > if (!length) { > data = 0; >- return *empty(); >+ return empty(); > } > > // Same as createUninitialized() except here we use stringRealloc. >- if (length > ((std::numeric_limits<unsigned>::max() - sizeof(StringImpl)) / sizeof(CharacterType))) >- CRASH(); >+ if (UNLIKELY(length > ((std::numeric_limits<unsigned>::max() - sizeof(StringImpl)) / sizeof(CharacterType)))) >+ return nullptr; > > originalString->~StringImpl(); > auto* string = static_cast<StringImpl*>(stringRealloc(&originalString.leakRef(), allocationSize<CharacterType>(length))); >+ if (UNLIKELY(!string)) >+ return nullptr; > > data = string->tailPointer<CharacterType>(); > return constructInternal<CharacterType>(*string, length); >@@ -230,13 +232,33 @@ template<typename CharacterType> inline Ref<StringImpl> StringImpl::reallocateIn > Ref<StringImpl> StringImpl::reallocate(Ref<StringImpl>&& originalString, unsigned length, LChar*& data) > { > ASSERT(originalString->is8Bit()); >- return reallocateInternal(WTFMove(originalString), length, data); >+ if (auto reallocated = reallocateInternal(WTFMove(originalString), length, data)) >+ return *reallocated; >+ CRASH(); > } > > Ref<StringImpl> StringImpl::reallocate(Ref<StringImpl>&& originalString, unsigned length, UChar*& data) > { > ASSERT(!originalString->is8Bit()); >- return reallocateInternal(WTFMove(originalString), length, data); >+ if (auto reallocated = reallocateInternal(WTFMove(originalString), length, data)) >+ return *reallocated; >+ CRASH(); >+} >+ >+RefPtr<StringImpl> StringImpl::tryReallocate(Ref<StringImpl>&& originalString, unsigned length, LChar*& data) >+{ >+ ASSERT(originalString->is8Bit()); >+ if (auto reallocated = reallocateInternal(WTFMove(originalString), length, data)) >+ return reallocated.get(); >+ return nullptr; >+} >+ >+RefPtr<StringImpl> StringImpl::tryReallocate(Ref<StringImpl>&& originalString, unsigned length, UChar*& data) >+{ >+ ASSERT(!originalString->is8Bit()); >+ if (auto reallocated = reallocateInternal(WTFMove(originalString), length, data)) >+ return reallocated.get(); >+ return nullptr; > } > > template<typename CharacterType> inline Ref<StringImpl> StringImpl::createInternal(const CharacterType* characters, unsigned length) >diff --git a/Source/WTF/wtf/text/StringImpl.h b/Source/WTF/wtf/text/StringImpl.h >index 616da25..8df9e35 100644 >--- a/Source/WTF/wtf/text/StringImpl.h >+++ b/Source/WTF/wtf/text/StringImpl.h >@@ -229,6 +229,7 @@ public: > WTF_EXPORT_PRIVATE static Ref<StringImpl> create(const LChar*); > ALWAYS_INLINE static Ref<StringImpl> create(const char* string) { return create(reinterpret_cast<const LChar*>(string)); } > >+ static RefPtr<StringImpl> tryCreateSubstringSharingImpl(StringImpl&, unsigned offset, unsigned length); > static Ref<StringImpl> createSubstringSharingImpl(StringImpl&, unsigned offset, unsigned length); > > template<unsigned characterCount> static Ref<StringImpl> createFromLiteral(const char (&)[characterCount]); >@@ -248,6 +249,8 @@ public: > // the originalString can't be used after this function. > static Ref<StringImpl> reallocate(Ref<StringImpl>&& originalString, unsigned length, LChar*& data); > static Ref<StringImpl> reallocate(Ref<StringImpl>&& originalString, unsigned length, UChar*& data); >+ static RefPtr<StringImpl> tryReallocate(Ref<StringImpl>&& originalString, unsigned length, LChar*& data); >+ static RefPtr<StringImpl> tryReallocate(Ref<StringImpl>&& originalString, unsigned length, UChar*& data); > > static unsigned flagsOffset() { return OBJECT_OFFSETOF(StringImpl, m_hashAndFlags); } > static unsigned flagIs8Bit() { return s_hashFlag8BitBuffer; } >@@ -503,7 +506,7 @@ private: > template<typename CharacterType> static Ref<StringImpl> constructInternal(StringImpl&, unsigned); > template<typename CharacterType> static Ref<StringImpl> createUninitializedInternal(unsigned, CharacterType*&); > template<typename CharacterType> static Ref<StringImpl> createUninitializedInternalNonEmpty(unsigned, CharacterType*&); >- template<typename CharacterType> static Ref<StringImpl> reallocateInternal(Ref<StringImpl>&&, unsigned, CharacterType*&); >+ template<typename CharacterType> static RefPtr<StringImpl> reallocateInternal(Ref<StringImpl>&&, unsigned, CharacterType*&); > template<typename CharacterType> static Ref<StringImpl> createInternal(const CharacterType*, unsigned); > WTF_EXPORT_PRIVATE NEVER_INLINE unsigned hashSlowCase() const; > >@@ -914,22 +917,31 @@ template<size_t inlineCapacity> inline Ref<StringImpl> StringImpl::create8BitIfP > return create8BitIfPossible(vector.data(), vector.size()); > } > >-ALWAYS_INLINE Ref<StringImpl> StringImpl::createSubstringSharingImpl(StringImpl& rep, unsigned offset, unsigned length) >+ALWAYS_INLINE RefPtr<StringImpl> StringImpl::tryCreateSubstringSharingImpl(StringImpl& rep, unsigned offset, unsigned length) > { > ASSERT(length <= rep.length()); > > if (!length) >- return *empty(); >+ return empty(); > > auto* ownerRep = ((rep.bufferOwnership() == BufferSubstring) ? rep.substringBuffer() : &rep); > > // We allocate a buffer that contains both the StringImpl struct as well as the pointer to the owner string. > auto* stringImpl = static_cast<StringImpl*>(stringMalloc(allocationSize<StringImpl*>(1))); >+ if (!stringImpl) >+ return nullptr; > if (rep.is8Bit()) > return adoptRef(*new (NotNull, stringImpl) StringImpl(rep.m_data8 + offset, length, *ownerRep)); > return adoptRef(*new (NotNull, stringImpl) StringImpl(rep.m_data16 + offset, length, *ownerRep)); > } > >+ALWAYS_INLINE Ref<StringImpl> StringImpl::createSubstringSharingImpl(StringImpl& rep, unsigned offset, unsigned length) >+{ >+ if (auto created = tryCreateSubstringSharingImpl(rep, offset, length)) >+ return *created; >+ CRASH(); >+} >+ > template<unsigned characterCount> ALWAYS_INLINE Ref<StringImpl> StringImpl::createFromLiteral(const char (&characters)[characterCount]) > { > COMPILE_ASSERT(characterCount > 1, StringImplFromLiteralNotEmpty); >diff --git a/Source/WTF/wtf/text/TextStream.cpp b/Source/WTF/wtf/text/TextStream.cpp >index aaf6194..d3b5318 100644 >--- a/Source/WTF/wtf/text/TextStream.cpp >+++ b/Source/WTF/wtf/text/TextStream.cpp >@@ -132,9 +132,11 @@ TextStream& TextStream::operator<<(const FormatNumberRespectingIntegers& numberT > > String TextStream::release() > { >- String result = m_text.toString(); >- m_text.clear(); >- return result; >+ if (auto result = m_text.toString()) { >+ m_text.clear(); >+ return *result; >+ } >+ CRASH(); > } > > void TextStream::startGroup() >diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog >index 51d8ad0..513a02f 100644 >--- a/Source/WebCore/ChangeLog >+++ b/Source/WebCore/ChangeLog >@@ -1,3 +1,513 @@ >+2018-04-26 JF Bastien <jfbastien@apple.com> >+ >+ StringBuilder is fallible >+ https://bugs.webkit.org/show_bug.cgi?id=185048 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ StringBuilder can fail when allocating memory. StringBuilder is >+ mostly used with user input, which often means that just crashing >+ isn't the right outcome. Our fuzzers often encounter such things >+ for JavaScriptCore, and so far we've applied point solutions. No >+ more! >+ >+ >+ * Modules/applepay/cocoa/PaymentContactCocoa.mm: >+ (WebCore::convert): >+ * Modules/entriesapi/DOMFileSystem.cpp: >+ (WebCore::resolveRelativeVirtualPath): >+ * Modules/geolocation/Geolocation.cpp: >+ (WebCore::logError): >+ * Modules/indexeddb/IDBKeyData.cpp: >+ (WebCore::IDBKeyData::loggingString const): >+ * Modules/indexeddb/IDBKeyPath.cpp: >+ (WebCore::loggingString): >+ * Modules/indexeddb/server/IndexValueStore.cpp: >+ (WebCore::IDBServer::IndexValueStore::loggingString const): >+ * Modules/indexeddb/server/SQLiteIDBCursor.cpp: >+ (WebCore::IDBServer::buildIndexStatement): >+ (WebCore::IDBServer::buildObjectStoreStatement): >+ * Modules/indexeddb/shared/IDBDatabaseInfo.cpp: >+ (WebCore::IDBDatabaseInfo::loggingString const): >+ * Modules/indexeddb/shared/IDBObjectStoreInfo.cpp: >+ (WebCore::IDBObjectStoreInfo::loggingString const): >+ * Modules/mediasession/WebMediaSessionManager.cpp: >+ (WebCore::mediaProducerStateString): >+ (WebCore::WebMediaSessionManager::toString): >+ * Modules/mediastream/PeerConnectionBackend.cpp: >+ (WebCore::filterICECandidate): >+ (WebCore::PeerConnectionBackend::filterSDP const): >+ * Modules/plugins/YouTubePluginReplacement.cpp: >+ (WebCore::YouTubePluginReplacement::youTubeURLFromAbsoluteURL): >+ * Modules/webdatabase/DatabaseTracker.cpp: >+ (WebCore::generateDatabaseFileName): >+ * Modules/websockets/WebSocket.cpp: >+ (WebCore::encodeProtocolString): >+ (WebCore::joinStrings): >+ * Modules/websockets/WebSocketExtensionDispatcher.cpp: >+ (WebCore::WebSocketExtensionDispatcher::createHeaderValue const): >+ (WebCore::WebSocketExtensionDispatcher::acceptedExtensions const): >+ * Modules/websockets/WebSocketHandshake.cpp: >+ (WebCore::resourceName): >+ (WebCore::hostName): >+ (WebCore::WebSocketHandshake::clientLocation const): >+ (WebCore::WebSocketHandshake::clientHandshakeMessage const): >+ * accessibility/AccessibilityNodeObject.cpp: >+ (WebCore::shouldAddSpaceBeforeAppendingNextElement): >+ (WebCore::AccessibilityNodeObject::textUnderElement const): >+ (WebCore::AccessibilityNodeObject::accessibilityDescriptionForChildren const): >+ (WebCore::AccessibilityNodeObject::accessibilityDescriptionForElements const): >+ * accessibility/AccessibilityObject.cpp: >+ (WebCore::AccessibilityObject::stringForRange const): >+ (WebCore::AccessibilityObject::stringForVisiblePositionRange): >+ * accessibility/mac/WebAccessibilityObjectWrapperMac.mm: >+ (-[WebAccessibilityObjectWrapper valueDescriptionForMeter]): >+ (formatForDebugger): >+ * bindings/js/JSDOMConvertStrings.cpp: >+ (WebCore::stringToUSVString): >+ * bindings/js/JSDOMExceptionHandling.cpp: >+ (WebCore::throwArgumentMustBeEnumError): >+ (WebCore::throwArgumentMustBeFunctionError): >+ (WebCore::throwArgumentTypeError): >+ (WebCore::throwRequiredMemberTypeError): >+ * contentextensions/CombinedURLFilters.cpp: >+ (WebCore::ContentExtensions::prefixTreeVertexToString): >+ * contentextensions/ContentExtension.cpp: >+ (WebCore::ContentExtensions::ContentExtension::compileGlobalDisplayNoneStyleSheet): >+ * contentextensions/ContentExtensionCompiler.cpp: >+ (WebCore::ContentExtensions::resolvePendingDisplayNoneActions): >+ * contentextensions/ContentExtensionStyleSheet.cpp: >+ (WebCore::ContentExtensions::ContentExtensionStyleSheet::addDisplayNoneSelector): >+ * contentextensions/Term.h: >+ (WebCore::ContentExtensions::Term::toString const): >+ * css/CSSAnimationTriggerScrollValue.cpp: >+ (WebCore::CSSAnimationTriggerScrollValue::customCSSText const): >+ * css/CSSBasicShapes.cpp: >+ (WebCore::buildCircleString): >+ (WebCore::buildEllipseString): >+ (WebCore::buildPathString): >+ (WebCore::buildPolygonString): >+ (WebCore::buildInsetString): >+ * css/CSSCalculationValue.cpp: >+ (WebCore::buildCssText): >+ * css/CSSComputedStyleDeclaration.cpp: >+ (WebCore::CSSComputedStyleDeclaration::cssText const): >+ * css/CSSCrossfadeValue.cpp: >+ (WebCore::CSSCrossfadeValue::customCSSText const): >+ * css/CSSCursorImageValue.cpp: >+ (WebCore::CSSCursorImageValue::customCSSText const): >+ * css/CSSCustomIdentValue.cpp: >+ (WebCore::CSSCustomIdentValue::customCSSText const): >+ * css/CSSFilterImageValue.cpp: >+ (WebCore::CSSFilterImageValue::customCSSText const): >+ * css/CSSFontFaceRule.cpp: >+ (WebCore::CSSFontFaceRule::cssText const): >+ * css/CSSFontFaceSrcValue.cpp: >+ (WebCore::CSSFontFaceSrcValue::customCSSText const): >+ * css/CSSFontFeatureValue.cpp: >+ (WebCore::CSSFontFeatureValue::customCSSText const): >+ * css/CSSFontStyleRangeValue.cpp: >+ (WebCore::CSSFontStyleRangeValue::customCSSText const): >+ * css/CSSFontStyleValue.cpp: >+ (WebCore::CSSFontStyleValue::customCSSText const): >+ * css/CSSFontValue.cpp: >+ (WebCore::CSSFontValue::customCSSText const): >+ * css/CSSFontVariationValue.cpp: >+ (WebCore::CSSFontVariationValue::customCSSText const): >+ * css/CSSFunctionValue.cpp: >+ (WebCore::CSSFunctionValue::customCSSText const): >+ * css/CSSGradientValue.cpp: >+ (WebCore::CSSLinearGradientValue::customCSSText const): >+ (WebCore::CSSRadialGradientValue::customCSSText const): >+ (WebCore::CSSConicGradientValue::customCSSText const): >+ * css/CSSGridAutoRepeatValue.cpp: >+ (WebCore::CSSGridAutoRepeatValue::customCSSText const): >+ * css/CSSGridTemplateAreasValue.cpp: >+ (WebCore::CSSGridTemplateAreasValue::customCSSText const): >+ * css/CSSImageSetValue.cpp: >+ (WebCore::CSSImageSetValue::customCSSText const): >+ * css/CSSImportRule.cpp: >+ (WebCore::CSSImportRule::cssText const): >+ * css/CSSKeyframeRule.cpp: >+ (WebCore::StyleRuleKeyframe::keyText const): >+ (WebCore::StyleRuleKeyframe::cssText const): >+ * css/CSSKeyframesRule.cpp: >+ (WebCore::CSSKeyframesRule::cssText const): >+ * css/CSSLineBoxContainValue.cpp: >+ (WebCore::CSSLineBoxContainValue::customCSSText const): >+ * css/CSSMarkup.cpp: >+ (WebCore::serializeString): >+ (WebCore::serializeAsStringOrCustomIdent): >+ * css/CSSMediaRule.cpp: >+ (WebCore::CSSMediaRule::cssText const): >+ * css/CSSNamespaceRule.cpp: >+ (WebCore::CSSNamespaceRule::cssText const): >+ * css/CSSPageRule.cpp: >+ (WebCore::CSSPageRule::selectorText const): >+ (WebCore::CSSPageRule::cssText const): >+ * css/CSSPrimitiveValue.cpp: >+ (WebCore::CSSPrimitiveValue::formatNumberForCustomCSSText const): >+ * css/CSSPropertySourceData.cpp: >+ (WebCore::CSSPropertySourceData::toString const): >+ * css/CSSSelector.cpp: >+ (WebCore::CSSSelector::selectorText const): >+ * css/CSSSelectorList.cpp: >+ (WebCore::CSSSelectorList::selectorsText const): >+ * css/CSSShadowValue.cpp: >+ (WebCore::CSSShadowValue::customCSSText const): >+ * css/CSSStyleRule.cpp: >+ (WebCore::CSSStyleRule::cssText const): >+ * css/CSSStyleSheet.cpp: >+ (WebCore::CSSStyleSheet::addRule): >+ * css/CSSSupportsRule.cpp: >+ (WebCore::CSSSupportsRule::cssText const): >+ * css/CSSTimingFunctionValue.cpp: >+ (WebCore::CSSCubicBezierTimingFunctionValue::customCSSText const): >+ (WebCore::CSSStepsTimingFunctionValue::customCSSText const): >+ (WebCore::CSSFramesTimingFunctionValue::customCSSText const): >+ (WebCore::CSSSpringTimingFunctionValue::customCSSText const): >+ * css/CSSValueList.cpp: >+ (WebCore::CSSValueList::customCSSText const): >+ * css/CSSVariableData.cpp: >+ (WebCore::CSSVariableData::consumeAndUpdateTokens): >+ * css/DOMCSSNamespace.cpp: >+ (WebCore::DOMCSSNamespace::escape): >+ * css/DOMMatrixReadOnly.cpp: >+ (WebCore::DOMMatrixReadOnly::toString const): >+ * css/DeprecatedCSSOMValueList.cpp: >+ (WebCore::DeprecatedCSSOMValueList::cssText const): >+ * css/FontFace.cpp: >+ (WebCore::FontFace::style const): >+ (WebCore::FontFace::weight const): >+ (WebCore::FontFace::stretch const): >+ * css/MediaList.cpp: >+ (WebCore::MediaQuerySet::mediaText const): >+ * css/MediaQuery.cpp: >+ (WebCore::MediaQuery::serialize const): >+ * css/MediaQueryExpression.cpp: >+ (WebCore::MediaQueryExpression::serialize const): >+ * css/Rect.h: >+ * css/StyleProperties.cpp: >+ (WebCore::StyleProperties::fontValue const): >+ (WebCore::StyleProperties::get4Values const): >+ (WebCore::StyleProperties::getLayeredShorthandValue const): >+ (WebCore::StyleProperties::getShorthandValue const): >+ (WebCore::StyleProperties::borderPropertyValue const): >+ (WebCore::StyleProperties::asText const): >+ (WebCore::StyleProperties::PropertyReference::cssText const): >+ * css/WebKitCSSMatrix.cpp: >+ (WebCore::WebKitCSSMatrix::toString const): >+ * css/WebKitCSSViewportRule.cpp: >+ (WebCore::WebKitCSSViewportRule::cssText const): >+ * css/parser/CSSParser.cpp: >+ (WebCore::CSSParser::parseFontFaceDescriptor): >+ * css/parser/CSSParserToken.cpp: >+ (WebCore::CSSParserToken::serialize const): >+ * css/parser/CSSParserTokenRange.cpp: >+ (WebCore::CSSParserTokenRange::serialize const): >+ * css/parser/CSSPropertyParser.cpp: >+ (WebCore::concatenateFamilyName): >+ (WebCore::parseGridTemplateAreasColumnNames): >+ * css/parser/CSSTokenizer.cpp: >+ (WebCore::CSSTokenizer::consumeStringTokenUntil): >+ (WebCore::CSSTokenizer::consumeUrlToken): >+ (WebCore::CSSTokenizer::consumeName): >+ (WebCore::CSSTokenizer::consumeEscape): >+ * dom/DatasetDOMStringMap.cpp: >+ (WebCore::convertAttributeNameToPropertyName): >+ * dom/Element.cpp: >+ (WebCore::Element::formatForDebugger const): >+ * dom/Node.cpp: >+ (WebCore::Node::textContent const): >+ (WebCore::Node::showNode const): >+ (WebCore::traverseTreeAndMark): >+ * dom/Position.cpp: >+ (WebCore::Position::formatForDebugger const): >+ * dom/Range.cpp: >+ (WebCore::Range::toString const): >+ (WebCore::Range::formatForDebugger const): >+ * dom/ScriptedAnimationController.cpp: >+ (WebCore::throttlingReasonsToString): >+ * dom/SecurityContext.cpp: >+ (WebCore::SecurityContext::parseSandboxPolicy): >+ * dom/Text.cpp: >+ (WebCore::Text::wholeText const): >+ (WebCore::Text::formatForDebugger const): >+ * dom/TextNodeTraversal.cpp: >+ (WebCore::TextNodeTraversal::contentsAsString): >+ (WebCore::TextNodeTraversal::childTextContent): >+ * editing/ApplyStyleCommand.cpp: >+ (WebCore::ApplyStyleCommand::addBlockStyle): >+ * editing/Editing.cpp: >+ (WebCore::stringWithRebalancedWhitespace): >+ * editing/HTMLInterchange.cpp: >+ (WebCore::convertHTMLTextToInterchangeFormat): >+ * editing/MarkupAccumulator.cpp: >+ (WebCore::MarkupAccumulator::serializeNodes): >+ (WebCore::MarkupAccumulator::generateUniquePrefix): >+ * editing/TextIterator.cpp: >+ (WebCore::plainText): >+ * editing/TypingCommand.cpp: >+ (WebCore::TypingCommand::inputEventDataTransfer const): >+ * editing/VisibleSelection.cpp: >+ (WebCore::VisibleSelection::formatForDebugger const): >+ * editing/cocoa/DataDetection.mm: >+ (WebCore::dataDetectorStringForPath): >+ * editing/cocoa/HTMLConverter.mm: >+ (HTMLConverter::_processText): >+ * editing/markup.cpp: >+ (WebCore::StyledMarkupAccumulator::wrapWithNode): >+ (WebCore::StyledMarkupAccumulator::wrapWithStyleNode): >+ (WebCore::StyledMarkupAccumulator::takeResults): >+ (WebCore::StyledMarkupAccumulator::appendText): >+ (WebCore::sanitizedMarkupForFragmentInDocument): >+ (WebCore::urlToMarkup): >+ * fileapi/FileReaderLoader.cpp: >+ (WebCore::FileReaderLoader::convertToDataURL): >+ * html/DOMTokenList.cpp: >+ (WebCore::DOMTokenList::updateAssociatedAttributeFromTokens): >+ * html/EmailInputType.cpp: >+ (WebCore::EmailInputType::sanitizeValue const): >+ * html/FileInputType.cpp: >+ (WebCore::FileInputType::defaultToolTip const): >+ * html/FormController.cpp: >+ (WebCore::formSignature): >+ * html/HTMLAnchorElement.cpp: >+ (WebCore::HTMLAnchorElement::handleClick): >+ * html/HTMLCanvasElement.cpp: >+ (WebCore::HTMLCanvasElement::createContext2d): >+ (WebCore::HTMLCanvasElement::createImageBuffer const): >+ * html/HTMLFontElement.cpp: >+ (WebCore::parseFontSize): >+ * html/HTMLImageElement.cpp: >+ (WebCore::HTMLImageElement::completeURLsInAttributeValue const): >+ * html/HTMLMediaElement.cpp: >+ (WebCore::actionName): >+ * html/HTMLOptionElement.cpp: >+ (WebCore::HTMLOptionElement::collectOptionInnerText const): >+ * html/HTMLTextFormControlElement.cpp: >+ (WebCore::HTMLTextFormControlElement::strippedPlaceholder const): >+ (WebCore::innerTextValueFrom): >+ (WebCore::HTMLTextFormControlElement::valueWithHardLineBreaks const): >+ * html/MediaDocument.cpp: >+ (WebCore::MediaDocumentParser::createDocumentStructure): >+ * html/MediaElementSession.cpp: >+ (WebCore::restrictionName): >+ * html/MediaFragmentURIParser.cpp: >+ (WebCore::collectDigits): >+ (WebCore::collectFraction): >+ * html/TypeAhead.cpp: >+ (WebCore::TypeAhead::handleEvent): >+ * html/canvas/CanvasRenderingContext2D.cpp: >+ (WebCore::CanvasRenderingContext2D::font const): >+ * html/canvas/CanvasRenderingContext2DBase.cpp: >+ (WebCore::CanvasRenderingContext2DBase::getImageData const): >+ * html/canvas/WebGLRenderingContextBase.cpp: >+ * html/parser/HTMLSourceTracker.cpp: >+ (WebCore::HTMLSourceTracker::source): >+ * html/parser/HTMLTokenizer.cpp: >+ (WebCore::HTMLTokenizer::processEntity): >+ (WebCore::HTMLTokenizer::processToken): >+ (WebCore::HTMLTokenizer::bufferedCharacters const): >+ * html/parser/HTMLTreeBuilder.cpp: >+ (WebCore::HTMLTreeBuilder::defaultForInTableText): >+ * html/parser/XSSAuditorDelegate.cpp: >+ (WebCore::buildConsoleError): >+ * html/track/BufferedLineReader.cpp: >+ (WebCore::BufferedLineReader::nextLine): >+ * html/track/TrackBase.cpp: >+ (WebCore::TrackBase::setLanguage): >+ * html/track/VTTCue.cpp: >+ (WebCore::VTTCue::determineTextDirection): >+ * html/track/WebVTTParser.cpp: >+ (WebCore::WebVTTParser::createNewCue): >+ * html/track/WebVTTTokenizer.cpp: >+ (WebCore::WebVTTTokenizer::nextToken): >+ * inspector/InspectorStyleSheet.cpp: >+ (WebCore::InspectorStyle::shorthandValue const): >+ * inspector/agents/InspectorApplicationCacheAgent.cpp: >+ (WebCore::InspectorApplicationCacheAgent::buildObjectForApplicationCacheResource): >+ * inspector/agents/InspectorNetworkAgent.cpp: >+ * inspector/agents/WebConsoleAgent.cpp: >+ (WebCore::WebConsoleAgent::didFailLoading): >+ * loader/CrossOriginAccessControl.cpp: >+ (WebCore::createAccessControlPreflightRequest): >+ * loader/ResourceLoadStatistics.cpp: >+ (WebCore::ResourceLoadStatistics::toString const): >+ * loader/appcache/ApplicationCacheStorage.cpp: >+ (WebCore::ApplicationCacheStorage::store): >+ * loader/archive/cf/LegacyWebArchive.cpp: >+ (WebCore::LegacyWebArchive::createFromSelection): >+ * loader/archive/mhtml/MHTMLArchive.cpp: >+ (WebCore::generateRandomBoundary): >+ (WebCore::replaceNonPrintableCharacters): >+ * page/CaptionUserPreferencesMediaAF.cpp: >+ (WebCore::CaptionUserPreferencesMediaAF::windowRoundedCornerRadiusCSS const): >+ (WebCore::CaptionUserPreferencesMediaAF::colorPropertyCSS const): >+ (WebCore::CaptionUserPreferencesMediaAF::captionsTextEdgeCSS const): >+ (WebCore::CaptionUserPreferencesMediaAF::captionsDefaultFontCSS const): >+ (WebCore::CaptionUserPreferencesMediaAF::captionsStyleSheetOverride const): >+ (WebCore::trackDisplayName): >+ * page/Frame.cpp: >+ (WebCore::createRegExpForLabels): >+ * page/FrameTree.cpp: >+ (WebCore::FrameTree::uniqueChildName const): >+ * page/FrameView.cpp: >+ (WebCore::FrameView::logMockScrollAnimatorMessage const): >+ * page/PageSerializer.cpp: >+ (WebCore::PageSerializer::serializeCSSStyleSheet): >+ * page/PerformanceLoggingClient.cpp: >+ (WebCore::PerformanceLoggingClient::synchronousScrollingReasonsAsString): >+ * page/SecurityOriginData.cpp: >+ (WebCore::SecurityOriginData::databaseIdentifier const): >+ * page/WheelEventTestTrigger.cpp: >+ (WebCore::dumpState): >+ * page/csp/ContentSecurityPolicy.cpp: >+ (WebCore::consoleMessageForViolation): >+ (WebCore::ContentSecurityPolicy::allowRunningOrDisplayingInsecureContent): >+ * page/scrolling/AxisScrollSnapOffsets.cpp: >+ (WebCore::snapOffsetsToString): >+ (WebCore::snapOffsetRangesToString): >+ * page/scrolling/ScrollingCoordinator.cpp: >+ (WebCore::ScrollingCoordinator::synchronousScrollingReasonsAsText): >+ * platform/Decimal.cpp: >+ (WebCore::Decimal::toString const): >+ * platform/FileSystem.cpp: >+ (WebCore::FileSystem::encodeForFileName): >+ (WebCore::FileSystem::decodeFromFilename): >+ * platform/PODInterval.h: >+ * platform/PODRedBlackTree.h: >+ (WebCore::PODRedBlackTree::dumpFromNode const): >+ * platform/URL.cpp: >+ (WebCore::URL::setHost): >+ (WebCore::URL::setHostAndPort): >+ (WebCore::percentEncodeCharacters): >+ * platform/animation/TimingFunction.cpp: >+ (WebCore::TimingFunction::createFromCSSText): >+ * platform/glib/FileSystemGlib.cpp: >+ (WebCore::FileSystem::pathByAppendingComponents): >+ * platform/graphics/Color.cpp: >+ (WebCore::Color::serialized const): >+ (WebCore::Color::cssText const): >+ * platform/graphics/ExtendedColor.cpp: >+ (WebCore::ExtendedColor::cssText const): >+ * platform/graphics/FontCascade.cpp: >+ (WebCore::normalizeSpacesInternal): >+ * platform/graphics/FontTaggedSettings.cpp: >+ (WebCore::operator<<): >+ * platform/graphics/GraphicsLayer.cpp: >+ (WebCore::GraphicsLayer::animationNameForTransition): >+ * platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp: >+ (WebCore::InbandTextTrackPrivateAVF::processCueAttributes): >+ (WebCore::InbandTextTrackPrivateAVF::processNativeSamples): >+ * platform/graphics/ca/TileController.cpp: >+ (WebCore::TileController::createTileLayer): >+ * platform/graphics/ca/TileGrid.cpp: >+ (WebCore::validationPolicyAsString): >+ * platform/graphics/ca/win/PlatformCALayerWin.cpp: >+ (PlatformCALayerWin::layerTreeAsString const): >+ * platform/graphics/cv/VideoTextureCopierCV.cpp: >+ (WebCore::VideoTextureCopierCV::initializeContextObjects): >+ * platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp: >+ (WebCore::generateHashedName): >+ (WebCore::GraphicsContext3D::getUnmangledInfoLog): >+ * platform/mac/PasteboardMac.mm: >+ (WebCore::joinPathnames): >+ * platform/mac/StringUtilities.mm: >+ (WebCore::wildcardRegexPatternString): >+ * platform/mock/ScrollAnimatorMock.cpp: >+ (WebCore::ScrollAnimatorMock::mouseEnteredScrollbar const): >+ (WebCore::ScrollAnimatorMock::mouseExitedScrollbar const): >+ (WebCore::ScrollAnimatorMock::mouseIsDownInScrollbar const): >+ * platform/mock/mediasource/MockBox.cpp: >+ (WebCore::MockBox::peekType): >+ (WebCore::MockTrackBox::MockTrackBox): >+ * platform/network/HTTPParsers.cpp: >+ (WebCore::extractMIMETypeFromMediaType): >+ * platform/network/ProxyServer.cpp: >+ (WebCore::toString): >+ * platform/network/mac/CookieJarMac.mm: >+ (WebCore::cookiesForSession): >+ * platform/posix/FileSystemPOSIX.cpp: >+ (WebCore::FileSystem::pathByAppendingComponents): >+ * platform/text/DecodeEscapeSequences.h: >+ (WebCore::Unicode16BitEscapeSequence::decodeRun): >+ (WebCore::decodeEscapeSequences): >+ * platform/text/PlatformLocale.cpp: >+ (WebCore::Locale::convertToLocalizedNumber): >+ (WebCore::Locale::convertFromLocalizedNumber): >+ (WebCore::Locale::formatDateTime): >+ * platform/text/SegmentedString.cpp: >+ (WebCore::SegmentedString::toString const): >+ * platform/text/TextCodecICU.cpp: >+ (WebCore::TextCodecICU::decode): >+ * platform/text/TextCodecUserDefined.cpp: >+ (WebCore::TextCodecUserDefined::decode): >+ * plugins/DOMMimeType.cpp: >+ (WebCore::DOMMimeType::suffixes const): >+ * rendering/RenderLayer.cpp: >+ (WebCore::RenderLayer::name const): >+ * rendering/RenderLayerCompositor.cpp: >+ (WebCore::RenderLayerCompositor::logLayerInfo): >+ * rendering/RenderListMarker.cpp: >+ (WebCore::listMarkerText): >+ (WebCore::RenderListMarker::paint): >+ * rendering/RenderText.cpp: >+ (WebCore::capitalize): >+ (WebCore::maxWordFragmentWidth): >+ * rendering/RenderTreeAsText.cpp: >+ (WebCore::quoteAndEscapeNonPrintables): >+ (WebCore::nodePosition): >+ * rendering/mathml/RenderMathMLFenced.cpp: >+ (WebCore::RenderMathMLFenced::updateFromElement): >+ * rendering/updating/RenderTreeBuilderMathML.cpp: >+ (WebCore::RenderTreeBuilder::MathML::attach): >+ * svg/SVGLengthListValues.cpp: >+ (WebCore::SVGLengthListValues::valueAsString const): >+ * svg/SVGNumberListValues.cpp: >+ (WebCore::SVGNumberListValues::valueAsString const): >+ * svg/SVGPathStringBuilder.cpp: >+ (WebCore::SVGPathStringBuilder::result): >+ * svg/SVGPathUtilities.cpp: >+ (WebCore::buildStringFromPath): >+ * svg/SVGPointListValues.cpp: >+ (WebCore::SVGPointListValues::valueAsString const): >+ * svg/SVGStringListValues.cpp: >+ (WebCore::SVGStringListValues::valueAsString const): >+ * svg/SVGTransformListValues.cpp: >+ (WebCore::SVGTransformListValues::valueAsString const): >+ * svg/SVGTransformValue.cpp: >+ (WebCore::SVGTransformValue::valueAsString const): >+ * svg/properties/SVGPropertyTraits.h: >+ (WebCore::SVGPropertyTraits<FloatPoint>::toString): >+ (WebCore::SVGPropertyTraits<FloatRect>::toString): >+ * testing/Internals.cpp: >+ (WebCore::Internals::dumpMarkerRects): >+ (WebCore::Internals::parserMetaData): >+ (WebCore::Internals::getCurrentCursorInfo): >+ (WebCore::Internals::mediaSessionRestrictions const): >+ (WebCore::Internals::pageMediaState): >+ (WebCore::Internals::scrollSnapOffsets): >+ * testing/MockPageOverlayClient.cpp: >+ (WebCore::MockPageOverlayClient::drawRect): >+ (WebCore::MockPageOverlayClient::mouseEvent): >+ * workers/WorkerScriptLoader.cpp: >+ (WebCore::WorkerScriptLoader::script): >+ * xml/XMLErrors.cpp: >+ (WebCore::XMLErrors::insertErrorMessageBlock): >+ * xml/XMLHttpRequest.cpp: >+ (WebCore::XMLHttpRequest::getAllResponseHeaders const): >+ * xml/XMLHttpRequest.h: >+ * xml/XPathFunctions.cpp: >+ (WebCore::XPath::atomicSubstring): >+ (WebCore::XPath::FunId::evaluate const): >+ (WebCore::XPath::FunConcat::evaluate const): >+ (WebCore::XPath::FunTranslate::evaluate const): >+ * xml/XSLTProcessorLibxslt.cpp: >+ (WebCore::saveResultToString): >+ * xml/parser/CharacterReferenceParserInlines.h: >+ (WebCore::unconsumeCharacters): >+ > 2018-04-25 Youenn Fablet <youenn@apple.com> > > Use NetworkLoadChecker for all subresource loads except fetch/XHR >diff --git a/Source/WebCore/Modules/applepay/cocoa/PaymentContactCocoa.mm b/Source/WebCore/Modules/applepay/cocoa/PaymentContactCocoa.mm >index 3be6210..09784f1 100644 >--- a/Source/WebCore/Modules/applepay/cocoa/PaymentContactCocoa.mm >+++ b/Source/WebCore/Modules/applepay/cocoa/PaymentContactCocoa.mm >@@ -154,7 +154,10 @@ static RetainPtr<PKContact> convert(unsigned version, const ApplePayPaymentConta > } > > // FIXME: StringBuilder should hava a toNSString() function to avoid the extra String allocation. >- [address setStreet:builder.toString()]; >+ if (auto string = builder.toString()) >+ [address setStreet:*string]; >+ else >+ CRASH(); > > if (!contact.subLocality.isEmpty()) > setSubLocality(address.get(), contact.subLocality); >diff --git a/Source/WebCore/Modules/entriesapi/DOMFileSystem.cpp b/Source/WebCore/Modules/entriesapi/DOMFileSystem.cpp >index 8e5066d..9b360ad 100644 >--- a/Source/WebCore/Modules/entriesapi/DOMFileSystem.cpp >+++ b/Source/WebCore/Modules/entriesapi/DOMFileSystem.cpp >@@ -216,7 +216,9 @@ static String resolveRelativeVirtualPath(StringView baseVirtualPath, StringView > builder.append('/'); > builder.append(segment); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > // https://wicg.github.io/entries-api/#evaluate-a-path >diff --git a/Source/WebCore/Modules/geolocation/Geolocation.cpp b/Source/WebCore/Modules/geolocation/Geolocation.cpp >index dcbf703..6caac5a 100644 >--- a/Source/WebCore/Modules/geolocation/Geolocation.cpp >+++ b/Source/WebCore/Modules/geolocation/Geolocation.cpp >@@ -340,7 +340,10 @@ static void logError(const String& target, const bool isSecure, const bool isMix > > message.append(target); > message.append(".\n"); >- document->addConsoleMessage(MessageSource::Security, MessageLevel::Error, message.toString()); >+ if (auto string = message.toString()) >+ document->addConsoleMessage(MessageSource::Security, MessageLevel::Error, *string); >+ else >+ CRASH(); > } > > // FIXME: remove this function when rdar://problem/32137821 is fixed. >diff --git a/Source/WebCore/Modules/indexeddb/IDBKeyData.cpp b/Source/WebCore/Modules/indexeddb/IDBKeyData.cpp >index 2e93645..7212974 100644 >--- a/Source/WebCore/Modules/indexeddb/IDBKeyData.cpp >+++ b/Source/WebCore/Modules/indexeddb/IDBKeyData.cpp >@@ -332,7 +332,10 @@ String IDBKeyData::loggingString() const > builder.appendLiteral(", "); > } > builder.appendLiteral(" }"); >- result = builder.toString(); >+ if (auto string = builder.toString()) >+ result = *string; >+ else >+ CRASH(); > break; > } > case KeyType::Binary: { >@@ -342,7 +345,10 @@ String IDBKeyData::loggingString() const > auto* data = WTF::get<ThreadSafeDataBuffer>(m_value).data(); > if (!data) { > builder.append("(null)"); >- result = builder.toString(); >+ if (auto string = builder.toString()) >+ result = *string; >+ else >+ CRASH(); > break; > } > >@@ -353,7 +359,10 @@ String IDBKeyData::loggingString() const > if (data->size() > 8) > builder.append("..."); > >- result = builder.toString(); >+ if (auto string = builder.toString()) >+ result = *string; >+ else >+ CRASH(); > break; > } > case KeyType::String: >diff --git a/Source/WebCore/Modules/indexeddb/IDBKeyPath.cpp b/Source/WebCore/Modules/indexeddb/IDBKeyPath.cpp >index 76ebeb3..8b9fb17 100644 >--- a/Source/WebCore/Modules/indexeddb/IDBKeyPath.cpp >+++ b/Source/WebCore/Modules/indexeddb/IDBKeyPath.cpp >@@ -241,7 +241,9 @@ String loggingString(const IDBKeyPath& path) > builder.append(strings.last()); > builder.append(" >"); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > }); > > return WTF::visit(visitor, path); >diff --git a/Source/WebCore/Modules/indexeddb/server/IndexValueStore.cpp b/Source/WebCore/Modules/indexeddb/server/IndexValueStore.cpp >index 6983c9d..80d6b3b 100644 >--- a/Source/WebCore/Modules/indexeddb/server/IndexValueStore.cpp >+++ b/Source/WebCore/Modules/indexeddb/server/IndexValueStore.cpp >@@ -409,7 +409,9 @@ String IndexValueStore::loggingString() const > builder.appendNumber(m_records.get(key)->getCount()); > builder.appendLiteral(" entries"); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/Modules/indexeddb/server/SQLiteIDBCursor.cpp b/Source/WebCore/Modules/indexeddb/server/SQLiteIDBCursor.cpp >index f20db87..a4c30fa 100644 >--- a/Source/WebCore/Modules/indexeddb/server/SQLiteIDBCursor.cpp >+++ b/Source/WebCore/Modules/indexeddb/server/SQLiteIDBCursor.cpp >@@ -141,7 +141,9 @@ static String buildIndexStatement(const IDBKeyRangeData& keyRange, IndexedDB::Cu > > builder.append(';'); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static String buildObjectStoreStatement(const IDBKeyRangeData& keyRange, IndexedDB::CursorDirection cursorDirection) >@@ -169,7 +171,9 @@ static String buildObjectStoreStatement(const IDBKeyRangeData& keyRange, Indexed > > builder.append(';'); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool SQLiteIDBCursor::establishStatement() >diff --git a/Source/WebCore/Modules/indexeddb/shared/IDBDatabaseInfo.cpp b/Source/WebCore/Modules/indexeddb/shared/IDBDatabaseInfo.cpp >index e5df15c..76934d4 100644 >--- a/Source/WebCore/Modules/indexeddb/shared/IDBDatabaseInfo.cpp >+++ b/Source/WebCore/Modules/indexeddb/shared/IDBDatabaseInfo.cpp >@@ -169,7 +169,9 @@ String IDBDatabaseInfo::loggingString() const > builder.append('\n'); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/Modules/indexeddb/shared/IDBObjectStoreInfo.cpp b/Source/WebCore/Modules/indexeddb/shared/IDBObjectStoreInfo.cpp >index b0075fe..8d8fad6 100644 >--- a/Source/WebCore/Modules/indexeddb/shared/IDBObjectStoreInfo.cpp >+++ b/Source/WebCore/Modules/indexeddb/shared/IDBObjectStoreInfo.cpp >@@ -148,7 +148,9 @@ String IDBObjectStoreInfo::loggingString(int indent) const > builder.append('\n'); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String IDBObjectStoreInfo::condensedLoggingString() const >diff --git a/Source/WebCore/Modules/mediasession/WebMediaSessionManager.cpp b/Source/WebCore/Modules/mediasession/WebMediaSessionManager.cpp >index 4209ffa..96febc8 100644 >--- a/Source/WebCore/Modules/mediasession/WebMediaSessionManager.cpp >+++ b/Source/WebCore/Modules/mediasession/WebMediaSessionManager.cpp >@@ -89,7 +89,9 @@ static String mediaProducerStateString(MediaProducer::MediaStateFlags flags) > else > string.resize(string.length() - 2); > >- return string.toString(); >+ if (auto str = string.toString()) >+ return *str; >+ CRASH(); > } > #endif > >@@ -381,7 +383,9 @@ String WebMediaSessionManager::toString(ConfigurationTasks tasks) > else > string.resize(string.length() - 2); > >- return string.toString(); >+ if (auto str = string.toString()) >+ return *str; >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/Modules/mediastream/PeerConnectionBackend.cpp b/Source/WebCore/Modules/mediastream/PeerConnectionBackend.cpp >index dc51bb5..dbecd5d 100644 >--- a/Source/WebCore/Modules/mediastream/PeerConnectionBackend.cpp >+++ b/Source/WebCore/Modules/mediastream/PeerConnectionBackend.cpp >@@ -403,7 +403,9 @@ static String filterICECandidate(String&& sdp) > filteredSDP.append(' '); > filteredSDP.append(item); > }); >- return filteredSDP.toString(); >+ if (auto string = filteredSDP.toString()) >+ return *string; >+ CRASH(); > } > > String PeerConnectionBackend::filterSDP(String&& sdp) const >@@ -421,7 +423,9 @@ String PeerConnectionBackend::filterSDP(String&& sdp) const > return; > filteredSDP.append('\n'); > }); >- return filteredSDP.toString(); >+ if (auto string = filteredSDP.toString()) >+ return *string; >+ CRASH(); > } > > void PeerConnectionBackend::newICECandidate(String&& sdp, String&& mid, unsigned short sdpMLineIndex) >diff --git a/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp b/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp >index c9171dc..427f4fe 100644 >--- a/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp >+++ b/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp >@@ -333,7 +333,9 @@ String YouTubePluginReplacement::youTubeURLFromAbsoluteURL(const URL& srcURL, co > finalURL.append('?'); > finalURL.append(query); > } >- return finalURL.toString(); >+ if (auto string = finalURL.toString()) >+ return *string; >+ CRASH(); > } > > bool YouTubePluginReplacement::supportsURL(const URL& url) >diff --git a/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp b/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp >index 8fda62a..98f308d 100644 >--- a/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp >+++ b/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp >@@ -320,7 +320,9 @@ static String generateDatabaseFileName() > stringBuilder.append(createCanonicalUUIDString()); > stringBuilder.appendLiteral(".db"); > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > String DatabaseTracker::fullPathForDatabaseNoLock(const SecurityOriginData& origin, const String& name, bool createIfNotExists) >diff --git a/Source/WebCore/Modules/websockets/WebSocket.cpp b/Source/WebCore/Modules/websockets/WebSocket.cpp >index 02477b9..eab2531 100644 >--- a/Source/WebCore/Modules/websockets/WebSocket.cpp >+++ b/Source/WebCore/Modules/websockets/WebSocket.cpp >@@ -105,7 +105,9 @@ static String encodeProtocolString(const String& protocol) > else > builder.append(protocol[i]); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static String joinStrings(const Vector<String>& strings, const char* separator) >@@ -116,7 +118,9 @@ static String joinStrings(const Vector<String>& strings, const char* separator) > builder.append(separator); > builder.append(strings[i]); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static unsigned saturateAdd(unsigned a, unsigned b) >diff --git a/Source/WebCore/Modules/websockets/WebSocketExtensionDispatcher.cpp b/Source/WebCore/Modules/websockets/WebSocketExtensionDispatcher.cpp >index fcc9dc3..6c40c48 100644 >--- a/Source/WebCore/Modules/websockets/WebSocketExtensionDispatcher.cpp >+++ b/Source/WebCore/Modules/websockets/WebSocketExtensionDispatcher.cpp >@@ -68,7 +68,9 @@ const String WebSocketExtensionDispatcher::createHeaderValue() const > builder.appendLiteral(", "); > builder.append(m_processors[i]->handshakeString()); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > void WebSocketExtensionDispatcher::appendAcceptedExtension(const String& extensionToken, HashMap<String, String>& extensionParameters) >@@ -139,7 +141,9 @@ String WebSocketExtensionDispatcher::acceptedExtensions() const > { > if (m_acceptedExtensionsBuilder.isEmpty()) > return String(); >- return m_acceptedExtensionsBuilder.toStringPreserveCapacity(); >+ if (auto string = m_acceptedExtensionsBuilder.toStringPreserveCapacity()) >+ return *string; >+ CRASH(); > } > > String WebSocketExtensionDispatcher::failureReason() const >diff --git a/Source/WebCore/Modules/websockets/WebSocketHandshake.cpp b/Source/WebCore/Modules/websockets/WebSocketHandshake.cpp >index 5455cd1..083a904 100644 >--- a/Source/WebCore/Modules/websockets/WebSocketHandshake.cpp >+++ b/Source/WebCore/Modules/websockets/WebSocketHandshake.cpp >@@ -72,10 +72,13 @@ static String resourceName(const URL& url) > name.append('?'); > name.append(url.query()); > } >- String result = name.toString(); >- ASSERT(!result.isEmpty()); >- ASSERT(!result.contains(' ')); >- return result; >+ if (auto string = name.toString()) { >+ String result = *string; >+ ASSERT(!result.isEmpty()); >+ ASSERT(!result.contains(' ')); >+ return result; >+ } >+ CRASH(); > } > > static String hostName(const URL& url, bool secure) >@@ -87,7 +90,9 @@ static String hostName(const URL& url, bool secure) > builder.append(':'); > builder.appendNumber(url.port().value()); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static const size_t maxInputSampleSize = 128; >@@ -176,7 +181,9 @@ String WebSocketHandshake::clientLocation() const > builder.appendLiteral("://"); > builder.append(hostName(m_url, m_secure)); > builder.append(resourceName(m_url)); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > CString WebSocketHandshake::clientHandshakeMessage() const >@@ -226,7 +233,9 @@ CString WebSocketHandshake::clientHandshakeMessage() const > > builder.appendLiteral("\r\n"); > >- return builder.toString().utf8(); >+ if (auto string = builder.toString()) >+ return string->utf8(); >+ CRASH(); > } > > ResourceRequest WebSocketHandshake::clientHandshakeRequest() const >diff --git a/Source/WebCore/accessibility/AccessibilityNodeObject.cpp b/Source/WebCore/accessibility/AccessibilityNodeObject.cpp >index db8575e..c4a2521 100644 >--- a/Source/WebCore/accessibility/AccessibilityNodeObject.cpp >+++ b/Source/WebCore/accessibility/AccessibilityNodeObject.cpp >@@ -1713,11 +1713,13 @@ static bool shouldUseAccessibilityObjectInnerText(AccessibilityObject* obj, Acce > > static bool shouldAddSpaceBeforeAppendingNextElement(StringBuilder& builder, const String& childText) > { >+ if (builder.failed()) >+ CRASH(); >+ > if (!builder.length() || !childText.length()) > return false; >- > // We don't need to add an additional space before or after a line break. >- return !(isHTMLLineBreak(childText[0]) || isHTMLLineBreak(builder[builder.length() - 1])); >+ return !(isHTMLLineBreak(childText[0]) || isHTMLLineBreak(*builder[builder.length() - 1])); > } > > static void appendNameToStringBuilder(StringBuilder& builder, const String& text) >@@ -1769,7 +1771,9 @@ String AccessibilityNodeObject::textUnderElement(AccessibilityTextUnderElementMo > appendNameToStringBuilder(builder, childText); > } > >- return builder.toString().stripWhiteSpace().simplifyWhiteSpace(isHTMLSpaceButNotLineBreak); >+ if (auto string = builder.toString()) >+ return string->stripWhiteSpace().simplifyWhiteSpace(isHTMLSpaceButNotLineBreak); >+ CRASH(); > } > > String AccessibilityNodeObject::title() const >@@ -1985,7 +1989,9 @@ String AccessibilityNodeObject::accessibilityDescriptionForChildren() const > } > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String AccessibilityNodeObject::accessibilityDescriptionForElements(Vector<Element*> &elements) const >@@ -1994,7 +2000,9 @@ String AccessibilityNodeObject::accessibilityDescriptionForElements(Vector<Eleme > unsigned size = elements.size(); > for (unsigned i = 0; i < size; ++i) > appendNameToStringBuilder(builder, accessibleNameForNode(elements[i], node())); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String AccessibilityNodeObject::ariaDescribedByAttribute() const >diff --git a/Source/WebCore/accessibility/AccessibilityObject.cpp b/Source/WebCore/accessibility/AccessibilityObject.cpp >index 1928172..7c8d98c 100644 >--- a/Source/WebCore/accessibility/AccessibilityObject.cpp >+++ b/Source/WebCore/accessibility/AccessibilityObject.cpp >@@ -1388,8 +1388,10 @@ String AccessibilityObject::stringForRange(RefPtr<Range> range) const > builder.append(objectReplacementCharacter); > } > } >- >- return builder.toString(); >+ >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String AccessibilityObject::stringForVisiblePositionRange(const VisiblePositionRange& visiblePositionRange) >@@ -1415,7 +1417,9 @@ String AccessibilityObject::stringForVisiblePositionRange(const VisiblePositionR > } > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > int AccessibilityObject::lengthForVisiblePositionRange(const VisiblePositionRange& visiblePositionRange) const >diff --git a/Source/WebCore/accessibility/mac/WebAccessibilityObjectWrapperMac.mm b/Source/WebCore/accessibility/mac/WebAccessibilityObjectWrapperMac.mm >index a102d36..932d11a 100644 >--- a/Source/WebCore/accessibility/mac/WebAccessibilityObjectWrapperMac.mm >+++ b/Source/WebCore/accessibility/mac/WebAccessibilityObjectWrapperMac.mm >@@ -2409,7 +2409,9 @@ - (NSString *)valueDescriptionForMeter > if (builder.length()) > builder.appendLiteral(", "); > builder.append(gaugeRegionValue); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif > return valueDescription; >@@ -3873,8 +3875,11 @@ static void formatForDebugger(const VisiblePositionRange& range, char* buffer, u > result.appendLiteral(" to "); > range.end.formatForDebugger(format, FormatBufferSize); > result.append(format); >- >- strlcpy(buffer, result.toString().utf8().data(), length); >+ >+ if (auto string = result.toString()) >+ strlcpy(buffer, string->utf8().data(), length); >+ else >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/bindings/js/JSDOMConvertStrings.cpp b/Source/WebCore/bindings/js/JSDOMConvertStrings.cpp >index 7d2de18..1e04a1e 100644 >--- a/Source/WebCore/bindings/js/JSDOMConvertStrings.cpp >+++ b/Source/WebCore/bindings/js/JSDOMConvertStrings.cpp >@@ -91,7 +91,9 @@ static inline String stringToUSVString(String&& string) > else > result.append(codePoint); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String identifierToUSVString(ExecState&, const Identifier& identifier) >diff --git a/Source/WebCore/bindings/js/JSDOMExceptionHandling.cpp b/Source/WebCore/bindings/js/JSDOMExceptionHandling.cpp >index 895a300..07fb738 100644 >--- a/Source/WebCore/bindings/js/JSDOMExceptionHandling.cpp >+++ b/Source/WebCore/bindings/js/JSDOMExceptionHandling.cpp >@@ -211,7 +211,9 @@ JSC::EncodedJSValue throwArgumentMustBeEnumError(JSC::ExecState& state, JSC::Thr > appendArgumentMustBe(builder, argumentIndex, argumentName, functionInterfaceName, functionName); > builder.appendLiteral("one of: "); > builder.append(expectedValues); >- return throwVMTypeError(&state, scope, builder.toString()); >+ if (auto string = builder.toString()) >+ return throwVMTypeError(&state, scope, *string); >+ CRASH(); > } > > JSC::EncodedJSValue throwArgumentMustBeFunctionError(JSC::ExecState& state, JSC::ThrowScope& scope, unsigned argumentIndex, const char* argumentName, const char* interfaceName, const char* functionName) >@@ -219,7 +221,9 @@ JSC::EncodedJSValue throwArgumentMustBeFunctionError(JSC::ExecState& state, JSC: > StringBuilder builder; > appendArgumentMustBe(builder, argumentIndex, argumentName, interfaceName, functionName); > builder.appendLiteral("a function"); >- return throwVMTypeError(&state, scope, builder.toString()); >+ if (auto string = builder.toString()) >+ return throwVMTypeError(&state, scope, *string); >+ CRASH(); > } > > JSC::EncodedJSValue throwArgumentTypeError(JSC::ExecState& state, JSC::ThrowScope& scope, unsigned argumentIndex, const char* argumentName, const char* functionInterfaceName, const char* functionName, const char* expectedType) >@@ -228,7 +232,9 @@ JSC::EncodedJSValue throwArgumentTypeError(JSC::ExecState& state, JSC::ThrowScop > appendArgumentMustBe(builder, argumentIndex, argumentName, functionInterfaceName, functionName); > builder.appendLiteral("an instance of "); > builder.append(expectedType); >- return throwVMTypeError(&state, scope, builder.toString()); >+ if (auto string = builder.toString()) >+ return throwVMTypeError(&state, scope, *string); >+ CRASH(); > } > > void throwAttributeTypeError(JSC::ExecState& state, JSC::ThrowScope& scope, const char* interfaceName, const char* attributeName, const char* expectedType) >@@ -245,7 +251,9 @@ JSC::EncodedJSValue throwRequiredMemberTypeError(JSC::ExecState& state, JSC::Thr > builder.append(memberName); > builder.appendLiteral(" is required and must be an instance of "); > builder.append(expectedType); >- return throwVMTypeError(&state, scope, builder.toString()); >+ if (auto string = builder.toString()) >+ return throwVMTypeError(&state, scope, *string); >+ CRASH(); > } > > JSC::EncodedJSValue throwConstructorScriptExecutionContextUnavailableError(JSC::ExecState& state, JSC::ThrowScope& scope, const char* interfaceName) >diff --git a/Source/WebCore/contentextensions/CombinedURLFilters.cpp b/Source/WebCore/contentextensions/CombinedURLFilters.cpp >index 7558b22..29de509 100644 >--- a/Source/WebCore/contentextensions/CombinedURLFilters.cpp >+++ b/Source/WebCore/contentextensions/CombinedURLFilters.cpp >@@ -107,7 +107,9 @@ static String prefixTreeVertexToString(const PrefixTreeVertex& vertex, const Has > } > } > builder.append('\n'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static void recursivePrint(const PrefixTreeVertex& vertex, const HashMap<const PrefixTreeVertex*, ActionList>& actions, unsigned depth) >diff --git a/Source/WebCore/contentextensions/ContentExtension.cpp b/Source/WebCore/contentextensions/ContentExtension.cpp >index 610e1b8..8e50ff8 100644 >--- a/Source/WebCore/contentextensions/ContentExtension.cpp >+++ b/Source/WebCore/contentextensions/ContentExtension.cpp >@@ -110,8 +110,11 @@ void ContentExtension::compileGlobalDisplayNoneStyleSheet() > > m_globalDisplayNoneStyleSheet = StyleSheetContents::create(); > m_globalDisplayNoneStyleSheet->setIsUserStyleSheet(true); >- if (!m_globalDisplayNoneStyleSheet->parseString(css.toString())) >- m_globalDisplayNoneStyleSheet = nullptr; >+ if (auto string = css.toString()) { >+ if (!m_globalDisplayNoneStyleSheet->parseString(*string)) >+ m_globalDisplayNoneStyleSheet = nullptr; >+ } else >+ CRASH(); > > // These actions don't need to be applied individually any more. They will all be applied to every page as a precompiled style sheet. > m_universalActionsWithoutConditions.removeAllMatching(inGlobalDisplayNoneStyleSheet); >diff --git a/Source/WebCore/contentextensions/ContentExtensionCompiler.cpp b/Source/WebCore/contentextensions/ContentExtensionCompiler.cpp >index 5e035a6..5c37efb 100644 >--- a/Source/WebCore/contentextensions/ContentExtensionCompiler.cpp >+++ b/Source/WebCore/contentextensions/ContentExtensionCompiler.cpp >@@ -80,7 +80,10 @@ static void resolvePendingDisplayNoneActions(Vector<SerializedActionByte>& actio > for (auto& pendingDisplayNoneActions : map.values()) { > uint32_t actionLocation = actions.size(); > actions.append(static_cast<SerializedActionByte>(ActionType::CSSDisplayNoneSelector)); >- serializeString(actions, pendingDisplayNoneActions.combinedSelectors.toString()); >+ if (auto string = pendingDisplayNoneActions.combinedSelectors.toString()) >+ serializeString(actions, *string); >+ else >+ CRASH(); > for (uint32_t clientLocation : pendingDisplayNoneActions.clientLocations) > actionLocations[clientLocation] = actionLocation; > } >diff --git a/Source/WebCore/contentextensions/ContentExtensionStyleSheet.cpp b/Source/WebCore/contentextensions/ContentExtensionStyleSheet.cpp >index e24a366..de3e859 100644 >--- a/Source/WebCore/contentextensions/ContentExtensionStyleSheet.cpp >+++ b/Source/WebCore/contentextensions/ContentExtensionStyleSheet.cpp >@@ -60,7 +60,10 @@ bool ContentExtensionStyleSheet::addDisplayNoneSelector(const String& selector, > css.append('{'); > css.append(ContentExtensionsBackend::displayNoneCSSRule()); > css.append('}'); >- m_styleSheet->contents().parseString(css.toString()); >+ if (auto string = css.toString()) >+ m_styleSheet->contents().parseString(*string); >+ else >+ CRASH(); > return true; > } > >diff --git a/Source/WebCore/contentextensions/Term.h b/Source/WebCore/contentextensions/Term.h >index 0d51833..6f3194f 100644 >--- a/Source/WebCore/contentextensions/Term.h >+++ b/Source/WebCore/contentextensions/Term.h >@@ -246,7 +246,9 @@ inline String Term::toString() const > } > builder.append(']'); > builder.append(quantifierToString(m_quantifier)); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > case TermType::Group: { > StringBuilder builder; >@@ -255,7 +257,9 @@ inline String Term::toString() const > builder.append(term.toString()); > builder.append(')'); > builder.append(quantifierToString(m_quantifier)); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > } > } >diff --git a/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp b/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp >index a1a597b..2f25c9f 100644 >--- a/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp >+++ b/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp >@@ -43,7 +43,9 @@ String CSSAnimationTriggerScrollValue::customCSSText() const > result.append(m_endValue->cssText()); > } > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSAnimationTriggerScrollValue::equals(const CSSAnimationTriggerScrollValue& other) const >diff --git a/Source/WebCore/css/CSSBasicShapes.cpp b/Source/WebCore/css/CSSBasicShapes.cpp >index 24f2334..192a04f 100644 >--- a/Source/WebCore/css/CSSBasicShapes.cpp >+++ b/Source/WebCore/css/CSSBasicShapes.cpp >@@ -107,7 +107,9 @@ static String buildCircleString(const String& radius, const String& centerX, con > result.append(centerY); > } > result.appendLiteral(")"); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String CSSBasicShapeCircle::cssText() const >@@ -164,7 +166,9 @@ static String buildEllipseString(const String& radiusX, const String& radiusY, c > result.append(centerY); > } > result.appendLiteral(")"); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String CSSBasicShapeEllipse::cssText() const >@@ -224,7 +228,9 @@ static String buildPathString(const WindRule& windRule, const String& path, cons > result.append(box); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String CSSBasicShapePath::cssText() const >@@ -280,7 +286,9 @@ static String buildPolygonString(const WindRule& windRule, const Vector<String>& > > result.append(')'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String CSSBasicShapePolygon::cssText() const >@@ -377,7 +385,9 @@ static String buildInsetString(const String& top, const String& right, const Str > } > } > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > static inline void updateCornerRadiusWidthAndHeight(CSSPrimitiveValue* corner, String& width, String& height) >diff --git a/Source/WebCore/css/CSSCalculationValue.cpp b/Source/WebCore/css/CSSCalculationValue.cpp >index b758301..b91c0f8 100644 >--- a/Source/WebCore/css/CSSCalculationValue.cpp >+++ b/Source/WebCore/css/CSSCalculationValue.cpp >@@ -162,7 +162,9 @@ static String buildCssText(const String& expression) > result.append(expression); > if (expressionHasSingleTerm) > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String CSSCalcValue::customCSSText() const >@@ -563,7 +565,9 @@ private: > } > result.append(')'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String customCSSText() const final >diff --git a/Source/WebCore/css/CSSComputedStyleDeclaration.cpp b/Source/WebCore/css/CSSComputedStyleDeclaration.cpp >index eeae426..1a44d94 100644 >--- a/Source/WebCore/css/CSSComputedStyleDeclaration.cpp >+++ b/Source/WebCore/css/CSSComputedStyleDeclaration.cpp >@@ -1693,7 +1693,9 @@ String CSSComputedStyleDeclaration::cssText() const > result.append(';'); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > ExceptionOr<void> CSSComputedStyleDeclaration::setCssText(const String&) >diff --git a/Source/WebCore/css/CSSCrossfadeValue.cpp b/Source/WebCore/css/CSSCrossfadeValue.cpp >index 9eb6f0f..af91c22 100644 >--- a/Source/WebCore/css/CSSCrossfadeValue.cpp >+++ b/Source/WebCore/css/CSSCrossfadeValue.cpp >@@ -102,7 +102,9 @@ String CSSCrossfadeValue::customCSSText() const > result.appendLiteral(", "); > result.append(m_percentageValue->cssText()); > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > FloatSize CSSCrossfadeValue::fixedSize(const RenderElement& renderer) >diff --git a/Source/WebCore/css/CSSCursorImageValue.cpp b/Source/WebCore/css/CSSCursorImageValue.cpp >index 1b6d7f2..0eeee08 100644 >--- a/Source/WebCore/css/CSSCursorImageValue.cpp >+++ b/Source/WebCore/css/CSSCursorImageValue.cpp >@@ -61,7 +61,9 @@ String CSSCursorImageValue::customCSSText() const > result.append(' '); > result.appendNumber(m_hotSpot.y()); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > SVGCursorElement* CSSCursorImageValue::updateCursorElement(const Document& document) >diff --git a/Source/WebCore/css/CSSCustomIdentValue.cpp b/Source/WebCore/css/CSSCustomIdentValue.cpp >index 26d6e3b..f5eeb74 100644 >--- a/Source/WebCore/css/CSSCustomIdentValue.cpp >+++ b/Source/WebCore/css/CSSCustomIdentValue.cpp >@@ -56,7 +56,9 @@ String CSSCustomIdentValue::customCSSText() const > return getPropertyNameAtomicString(m_propertyId); > StringBuilder builder; > serializeIdentifier(m_string, builder); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/css/CSSFilterImageValue.cpp b/Source/WebCore/css/CSSFilterImageValue.cpp >index eaab703..230e070 100644 >--- a/Source/WebCore/css/CSSFilterImageValue.cpp >+++ b/Source/WebCore/css/CSSFilterImageValue.cpp >@@ -53,7 +53,9 @@ String CSSFilterImageValue::customCSSText() const > result.appendLiteral(", "); > result.append(m_filterValue->cssText()); > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > FloatSize CSSFilterImageValue::fixedSize(const RenderElement* renderer) >diff --git a/Source/WebCore/css/CSSFontFaceRule.cpp b/Source/WebCore/css/CSSFontFaceRule.cpp >index 0dda1b2..85946f6 100644 >--- a/Source/WebCore/css/CSSFontFaceRule.cpp >+++ b/Source/WebCore/css/CSSFontFaceRule.cpp >@@ -57,7 +57,9 @@ String CSSFontFaceRule::cssText() const > if (!descs.isEmpty()) > result.append(' '); > result.append('}'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void CSSFontFaceRule::reattach(StyleRuleBase& rule) >diff --git a/Source/WebCore/css/CSSFontFaceSrcValue.cpp b/Source/WebCore/css/CSSFontFaceSrcValue.cpp >index 81d8a75..2f3461f 100644 >--- a/Source/WebCore/css/CSSFontFaceSrcValue.cpp >+++ b/Source/WebCore/css/CSSFontFaceSrcValue.cpp >@@ -81,7 +81,9 @@ String CSSFontFaceSrcValue::customCSSText() const > result.append(m_format); > result.append(')'); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFontFaceSrcValue::traverseSubresources(const WTF::Function<bool (const CachedResource&)>& handler) const >diff --git a/Source/WebCore/css/CSSFontFeatureValue.cpp b/Source/WebCore/css/CSSFontFeatureValue.cpp >index 7ff07f3..474622e 100644 >--- a/Source/WebCore/css/CSSFontFeatureValue.cpp >+++ b/Source/WebCore/css/CSSFontFeatureValue.cpp >@@ -50,7 +50,9 @@ String CSSFontFeatureValue::customCSSText() const > builder.append(' '); > builder.appendNumber(m_value); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFontFeatureValue::equals(const CSSFontFeatureValue& other) const >diff --git a/Source/WebCore/css/CSSFontStyleRangeValue.cpp b/Source/WebCore/css/CSSFontStyleRangeValue.cpp >index 0cdcdbf..ea666b4 100644 >--- a/Source/WebCore/css/CSSFontStyleRangeValue.cpp >+++ b/Source/WebCore/css/CSSFontStyleRangeValue.cpp >@@ -39,7 +39,9 @@ String CSSFontStyleRangeValue::customCSSText() const > builder.append(fontStyleValue->cssText()); > builder.append(' '); > builder.append(obliqueValues->cssText()); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFontStyleRangeValue::equals(const CSSFontStyleRangeValue& other) const >diff --git a/Source/WebCore/css/CSSFontStyleValue.cpp b/Source/WebCore/css/CSSFontStyleValue.cpp >index 2850e23..8c4e856 100644 >--- a/Source/WebCore/css/CSSFontStyleValue.cpp >+++ b/Source/WebCore/css/CSSFontStyleValue.cpp >@@ -39,7 +39,9 @@ String CSSFontStyleValue::customCSSText() const > builder.append(fontStyleValue->cssText()); > builder.append(' '); > builder.append(obliqueValue->cssText()); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFontStyleValue::equals(const CSSFontStyleValue& other) const >diff --git a/Source/WebCore/css/CSSFontValue.cpp b/Source/WebCore/css/CSSFontValue.cpp >index 766c113..1cf78ad 100644 >--- a/Source/WebCore/css/CSSFontValue.cpp >+++ b/Source/WebCore/css/CSSFontValue.cpp >@@ -65,7 +65,9 @@ String CSSFontValue::customCSSText() const > result.append(family->cssText()); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFontValue::equals(const CSSFontValue& other) const >diff --git a/Source/WebCore/css/CSSFontVariationValue.cpp b/Source/WebCore/css/CSSFontVariationValue.cpp >index a208261..cd5b32e 100644 >--- a/Source/WebCore/css/CSSFontVariationValue.cpp >+++ b/Source/WebCore/css/CSSFontVariationValue.cpp >@@ -48,7 +48,9 @@ String CSSFontVariationValue::customCSSText() const > builder.append(c); > builder.appendLiteral("' "); > builder.appendNumber(m_value); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFontVariationValue::equals(const CSSFontVariationValue& other) const >diff --git a/Source/WebCore/css/CSSFunctionValue.cpp b/Source/WebCore/css/CSSFunctionValue.cpp >index 75ef0c1..bbddff1 100644 >--- a/Source/WebCore/css/CSSFunctionValue.cpp >+++ b/Source/WebCore/css/CSSFunctionValue.cpp >@@ -37,7 +37,9 @@ String CSSFunctionValue::customCSSText() const > result.append('('); > result.append(CSSValueList::customCSSText()); > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/css/CSSGradientValue.cpp b/Source/WebCore/css/CSSGradientValue.cpp >index eef295b..08337ff 100644 >--- a/Source/WebCore/css/CSSGradientValue.cpp >+++ b/Source/WebCore/css/CSSGradientValue.cpp >@@ -684,7 +684,9 @@ String CSSLinearGradientValue::customCSSText() const > } > > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > // Compute the endpoints so that a gradient of the given angle covers a box of the given size. >@@ -1002,7 +1004,9 @@ String CSSRadialGradientValue::customCSSText() const > } > > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > float CSSRadialGradientValue::resolveRadius(CSSPrimitiveValue& radius, const CSSToLengthConversionData& conversionData, float* widthOrHeight) >@@ -1330,7 +1334,9 @@ String CSSConicGradientValue::customCSSText() const > } > > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > Ref<Gradient> CSSConicGradientValue::createGradient(RenderElement&, const FloatSize&) >diff --git a/Source/WebCore/css/CSSGridAutoRepeatValue.cpp b/Source/WebCore/css/CSSGridAutoRepeatValue.cpp >index d5bc449..fd790dc 100644 >--- a/Source/WebCore/css/CSSGridAutoRepeatValue.cpp >+++ b/Source/WebCore/css/CSSGridAutoRepeatValue.cpp >@@ -43,7 +43,9 @@ String CSSGridAutoRepeatValue::customCSSText() const > result.append(", "); > result.append(CSSValueList::customCSSText()); > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/css/CSSGridTemplateAreasValue.cpp b/Source/WebCore/css/CSSGridTemplateAreasValue.cpp >index e0b7865..8bc3ffb 100644 >--- a/Source/WebCore/css/CSSGridTemplateAreasValue.cpp >+++ b/Source/WebCore/css/CSSGridTemplateAreasValue.cpp >@@ -80,7 +80,9 @@ String CSSGridTemplateAreasValue::customCSSText() const > if (row != m_rowCount - 1) > builder.append(' '); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSGridTemplateAreasValue::equals(const CSSGridTemplateAreasValue& other) const >diff --git a/Source/WebCore/css/CSSImageSetValue.cpp b/Source/WebCore/css/CSSImageSetValue.cpp >index a97dc21..e3750a2 100644 >--- a/Source/WebCore/css/CSSImageSetValue.cpp >+++ b/Source/WebCore/css/CSSImageSetValue.cpp >@@ -146,7 +146,9 @@ String CSSImageSetValue::customCSSText() const > } > > result.append(')'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSImageSetValue::traverseSubresources(const WTF::Function<bool (const CachedResource&)>& handler) const >diff --git a/Source/WebCore/css/CSSImportRule.cpp b/Source/WebCore/css/CSSImportRule.cpp >index 4c66613..f9aaeec 100644 >--- a/Source/WebCore/css/CSSImportRule.cpp >+++ b/Source/WebCore/css/CSSImportRule.cpp >@@ -72,7 +72,9 @@ String CSSImportRule::cssText() const > } > result.append(';'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > CSSStyleSheet* CSSImportRule::styleSheet() const >diff --git a/Source/WebCore/css/CSSKeyframeRule.cpp b/Source/WebCore/css/CSSKeyframeRule.cpp >index 81e9958..dca3f73 100644 >--- a/Source/WebCore/css/CSSKeyframeRule.cpp >+++ b/Source/WebCore/css/CSSKeyframeRule.cpp >@@ -67,7 +67,9 @@ String StyleRuleKeyframe::keyText() const > keyText.append('%'); > } > >- return keyText.toString(); >+ if (auto string = keyText.toString()) >+ return *string; >+ CRASH(); > } > > bool StyleRuleKeyframe::setKeyText(const String& keyText) >@@ -90,7 +92,9 @@ String StyleRuleKeyframe::cssText() const > if (!decls.isEmpty()) > result.append(' '); > result.append('}'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > CSSKeyframeRule::CSSKeyframeRule(StyleRuleKeyframe& keyframe, CSSKeyframesRule* parent) >diff --git a/Source/WebCore/css/CSSKeyframesRule.cpp b/Source/WebCore/css/CSSKeyframesRule.cpp >index 9f000d9..77b1826 100644 >--- a/Source/WebCore/css/CSSKeyframesRule.cpp >+++ b/Source/WebCore/css/CSSKeyframesRule.cpp >@@ -198,7 +198,9 @@ String CSSKeyframesRule::cssText() const > result.append('\n'); > } > result.append('}'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > unsigned CSSKeyframesRule::length() const >diff --git a/Source/WebCore/css/CSSLineBoxContainValue.cpp b/Source/WebCore/css/CSSLineBoxContainValue.cpp >index 19fdf8b..3deb3bd 100644 >--- a/Source/WebCore/css/CSSLineBoxContainValue.cpp >+++ b/Source/WebCore/css/CSSLineBoxContainValue.cpp >@@ -73,7 +73,9 @@ String CSSLineBoxContainValue::customCSSText() const > text.appendLiteral("initial-letter"); > } > >- return text.toString(); >+ if (auto string = text.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/css/CSSMarkup.cpp b/Source/WebCore/css/CSSMarkup.cpp >index 81fe888..609c713 100644 >--- a/Source/WebCore/css/CSSMarkup.cpp >+++ b/Source/WebCore/css/CSSMarkup.cpp >@@ -186,7 +186,9 @@ String serializeString(const String& string) > { > StringBuilder builder; > serializeString(string, builder); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String serializeURL(const String& string) >@@ -204,7 +206,9 @@ String serializeAsStringOrCustomIdent(const String& string) > if (isCSSTokenizerIdentifier(string)) { > StringBuilder builder; > serializeIdentifier(string, builder); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > return serializeString(string); > } >diff --git a/Source/WebCore/css/CSSMediaRule.cpp b/Source/WebCore/css/CSSMediaRule.cpp >index b094edd..174f5a6 100644 >--- a/Source/WebCore/css/CSSMediaRule.cpp >+++ b/Source/WebCore/css/CSSMediaRule.cpp >@@ -57,7 +57,9 @@ String CSSMediaRule::cssText() const > result.appendLiteral("{ \n"); > appendCssTextForItems(result); > result.append('}'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > MediaList* CSSMediaRule::media() const >diff --git a/Source/WebCore/css/CSSNamespaceRule.cpp b/Source/WebCore/css/CSSNamespaceRule.cpp >index 3d3ec6f..7068971 100644 >--- a/Source/WebCore/css/CSSNamespaceRule.cpp >+++ b/Source/WebCore/css/CSSNamespaceRule.cpp >@@ -60,7 +60,9 @@ String CSSNamespaceRule::cssText() const > result.append("url("); > result.append(serializeString(namespaceURI())); > result.append(");"); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void CSSNamespaceRule::reattach(StyleRuleBase&) >diff --git a/Source/WebCore/css/CSSPageRule.cpp b/Source/WebCore/css/CSSPageRule.cpp >index 47cf456..e69da5a 100644 >--- a/Source/WebCore/css/CSSPageRule.cpp >+++ b/Source/WebCore/css/CSSPageRule.cpp >@@ -64,7 +64,9 @@ String CSSPageRule::selectorText() const > text.append(pageSpecification); > } > } >- return text.toString(); >+ if (auto string = text.toString()) >+ return *string; >+ CRASH(); > } > > void CSSPageRule::setSelectorText(const String& selectorText) >@@ -90,7 +92,9 @@ String CSSPageRule::cssText() const > if (!decls.isEmpty()) > result.append(' '); > result.append('}'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void CSSPageRule::reattach(StyleRuleBase& rule) >diff --git a/Source/WebCore/css/CSSPrimitiveValue.cpp b/Source/WebCore/css/CSSPrimitiveValue.cpp >index a761276..83e16e0 100644 >--- a/Source/WebCore/css/CSSPrimitiveValue.cpp >+++ b/Source/WebCore/css/CSSPrimitiveValue.cpp >@@ -1045,7 +1045,9 @@ ALWAYS_INLINE String CSSPrimitiveValue::formatNumberForCustomCSSText() const > result.append(String(m_value.string)); > result.append(')'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > case CSS_COUNTER_NAME: > return "counter(" + String(m_value.string) + ')'; >@@ -1069,7 +1071,9 @@ ALWAYS_INLINE String CSSPrimitiveValue::formatNumberForCustomCSSText() const > } > result.append(')'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > case CSS_RECT: > return rectValue()->cssText(); >@@ -1112,7 +1116,9 @@ ALWAYS_INLINE String CSSPrimitiveValue::formatNumberForCustomCSSText() const > } > result.append(')'); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > #endif > case CSS_CALC: >diff --git a/Source/WebCore/css/CSSPropertySourceData.cpp b/Source/WebCore/css/CSSPropertySourceData.cpp >index 75b7990..fd2e82b 100644 >--- a/Source/WebCore/css/CSSPropertySourceData.cpp >+++ b/Source/WebCore/css/CSSPropertySourceData.cpp >@@ -96,7 +96,9 @@ String CSSPropertySourceData::toString() const > if (important) > result.appendLiteral(" !important"); > result.append(';'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > unsigned CSSPropertySourceData::hash() const >diff --git a/Source/WebCore/css/CSSSelector.cpp b/Source/WebCore/css/CSSSelector.cpp >index 1fe42cd..56bfc2b 100644 >--- a/Source/WebCore/css/CSSSelector.cpp >+++ b/Source/WebCore/css/CSSSelector.cpp >@@ -726,26 +726,31 @@ String CSSSelector::selectorText(const String& rightSide) const > cs = cs->tagHistory(); > } > >+ String string; >+ if (auto s = str.toString()) >+ string = *s; >+ else >+ CRASH(); > if (const CSSSelector* tagHistory = cs->tagHistory()) { > switch (cs->relation()) { > case CSSSelector::DescendantSpace: >- return tagHistory->selectorText(" " + str.toString() + rightSide); >+ return tagHistory->selectorText(" " + string + rightSide); > case CSSSelector::Child: >- return tagHistory->selectorText(" > " + str.toString() + rightSide); >+ return tagHistory->selectorText(" > " + string + rightSide); > case CSSSelector::DirectAdjacent: >- return tagHistory->selectorText(" + " + str.toString() + rightSide); >+ return tagHistory->selectorText(" + " + string + rightSide); > case CSSSelector::IndirectAdjacent: >- return tagHistory->selectorText(" ~ " + str.toString() + rightSide); >+ return tagHistory->selectorText(" ~ " + string + rightSide); > case CSSSelector::Subselector: > ASSERT_NOT_REACHED(); > #if ASSERT_DISABLED > FALLTHROUGH; > #endif > case CSSSelector::ShadowDescendant: >- return tagHistory->selectorText(str.toString() + rightSide); >+ return tagHistory->selectorText(string + rightSide); > } > } >- return str.toString() + rightSide; >+ return string + rightSide; > } > > void CSSSelector::setAttribute(const QualifiedName& value, bool isCaseInsensitive) >diff --git a/Source/WebCore/css/CSSSelectorList.cpp b/Source/WebCore/css/CSSSelectorList.cpp >index 57efa67..ae3300d 100644 >--- a/Source/WebCore/css/CSSSelectorList.cpp >+++ b/Source/WebCore/css/CSSSelectorList.cpp >@@ -138,7 +138,9 @@ String CSSSelectorList::selectorsText() const > { > StringBuilder result; > buildSelectorsText(result); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void CSSSelectorList::buildSelectorsText(StringBuilder& stringBuilder) const >diff --git a/Source/WebCore/css/CSSShadowValue.cpp b/Source/WebCore/css/CSSShadowValue.cpp >index 94947d7..e29c85e 100644 >--- a/Source/WebCore/css/CSSShadowValue.cpp >+++ b/Source/WebCore/css/CSSShadowValue.cpp >@@ -69,7 +69,9 @@ String CSSShadowValue::customCSSText() const > text.append(style->cssText()); > } > >- return text.toString(); >+ if (auto string = text.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSShadowValue::equals(const CSSShadowValue& other) const >diff --git a/Source/WebCore/css/CSSStyleRule.cpp b/Source/WebCore/css/CSSStyleRule.cpp >index bb8d21c..5808fd1 100644 >--- a/Source/WebCore/css/CSSStyleRule.cpp >+++ b/Source/WebCore/css/CSSStyleRule.cpp >@@ -120,7 +120,9 @@ String CSSStyleRule::cssText() const > if (!decls.isEmpty()) > result.append(' '); > result.append('}'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void CSSStyleRule::reattach(StyleRuleBase& rule) >diff --git a/Source/WebCore/css/CSSStyleSheet.cpp b/Source/WebCore/css/CSSStyleSheet.cpp >index 1ecc5ba..86984ff 100644 >--- a/Source/WebCore/css/CSSStyleSheet.cpp >+++ b/Source/WebCore/css/CSSStyleSheet.cpp >@@ -316,9 +316,12 @@ ExceptionOr<int> CSSStyleSheet::addRule(const String& selector, const String& st > if (!style.isEmpty()) > text.append(' '); > text.append('}'); >- auto insertRuleResult = insertRule(text.toString(), index.value_or(length())); >- if (insertRuleResult.hasException()) >- return insertRuleResult.releaseException(); >+ if (auto string = text.toString()) { >+ auto insertRuleResult = insertRule(*string, index.value_or(length())); >+ if (insertRuleResult.hasException()) >+ return insertRuleResult.releaseException(); >+ } else >+ CRASH(); > > // As per Microsoft documentation, always return -1. > return -1; >diff --git a/Source/WebCore/css/CSSSupportsRule.cpp b/Source/WebCore/css/CSSSupportsRule.cpp >index e13e13b..fcbe324 100644 >--- a/Source/WebCore/css/CSSSupportsRule.cpp >+++ b/Source/WebCore/css/CSSSupportsRule.cpp >@@ -50,7 +50,9 @@ String CSSSupportsRule::cssText() const > appendCssTextForItems(result); > result.append('}'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String CSSSupportsRule::conditionText() const >diff --git a/Source/WebCore/css/CSSTimingFunctionValue.cpp b/Source/WebCore/css/CSSTimingFunctionValue.cpp >index 90ef6cd..092882b 100644 >--- a/Source/WebCore/css/CSSTimingFunctionValue.cpp >+++ b/Source/WebCore/css/CSSTimingFunctionValue.cpp >@@ -42,7 +42,9 @@ String CSSCubicBezierTimingFunctionValue::customCSSText() const > builder.appendLiteral(", "); > builder.appendNumber(m_y2); > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSCubicBezierTimingFunctionValue::equals(const CSSCubicBezierTimingFunctionValue& other) const >@@ -59,7 +61,9 @@ String CSSStepsTimingFunctionValue::customCSSText() const > builder.appendLiteral(", start)"); > else > builder.appendLiteral(", end)"); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSStepsTimingFunctionValue::equals(const CSSStepsTimingFunctionValue& other) const >@@ -73,7 +77,9 @@ String CSSFramesTimingFunctionValue::customCSSText() const > builder.appendLiteral("frames("); > builder.appendNumber(m_frames); > builder.appendLiteral(")"); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSFramesTimingFunctionValue::equals(const CSSFramesTimingFunctionValue& other) const >@@ -93,7 +99,9 @@ String CSSSpringTimingFunctionValue::customCSSText() const > builder.append(' '); > builder.appendNumber(m_initialVelocity); > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSSpringTimingFunctionValue::equals(const CSSSpringTimingFunctionValue& other) const >diff --git a/Source/WebCore/css/CSSValueList.cpp b/Source/WebCore/css/CSSValueList.cpp >index b6e0c2c5..3090e33 100644 >--- a/Source/WebCore/css/CSSValueList.cpp >+++ b/Source/WebCore/css/CSSValueList.cpp >@@ -107,7 +107,9 @@ String CSSValueList::customCSSText() const > result.append(value.get().cssText()); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool CSSValueList::equals(const CSSValueList& other) const >diff --git a/Source/WebCore/css/CSSVariableData.cpp b/Source/WebCore/css/CSSVariableData.cpp >index 98c9d09..3118de9 100644 >--- a/Source/WebCore/css/CSSVariableData.cpp >+++ b/Source/WebCore/css/CSSVariableData.cpp >@@ -68,7 +68,10 @@ void CSSVariableData::consumeAndUpdateTokens(const CSSParserTokenRange& range) > if (token.hasStringBacking()) > stringBuilder.append(token.value()); > } >- m_backingString = stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ m_backingString = *string; >+ else >+ CRASH(); > if (m_backingString.is8Bit()) > updateTokens<LChar>(range); > else >diff --git a/Source/WebCore/css/DOMCSSNamespace.cpp b/Source/WebCore/css/DOMCSSNamespace.cpp >index 9135237..ce15d6b 100644 >--- a/Source/WebCore/css/DOMCSSNamespace.cpp >+++ b/Source/WebCore/css/DOMCSSNamespace.cpp >@@ -84,7 +84,9 @@ String DOMCSSNamespace::escape(const String& ident) > { > StringBuilder builder; > serializeIdentifier(ident, builder); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/css/DOMMatrixReadOnly.cpp b/Source/WebCore/css/DOMMatrixReadOnly.cpp >index f74b465..788228f 100644 >--- a/Source/WebCore/css/DOMMatrixReadOnly.cpp >+++ b/Source/WebCore/css/DOMMatrixReadOnly.cpp >@@ -450,7 +450,9 @@ ExceptionOr<String> DOMMatrixReadOnly::toString() const > builder.append(String::numberToStringECMAScript(m_matrix.m44())); > } > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return WTFMove(*string); >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/css/DeprecatedCSSOMValueList.cpp b/Source/WebCore/css/DeprecatedCSSOMValueList.cpp >index e496884..5e98e21 100644 >--- a/Source/WebCore/css/DeprecatedCSSOMValueList.cpp >+++ b/Source/WebCore/css/DeprecatedCSSOMValueList.cpp >@@ -54,7 +54,9 @@ String DeprecatedCSSOMValueList::cssText() const > result.append(value.get().cssText()); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/css/FontFace.cpp b/Source/WebCore/css/FontFace.cpp >index 581f5e8..c2586a7 100644 >--- a/Source/WebCore/css/FontFace.cpp >+++ b/Source/WebCore/css/FontFace.cpp >@@ -328,7 +328,9 @@ String FontFace::style() const > builder.append(' '); > builder.append(maximumNonKeyword->obliqueValue->cssText()); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String FontFace::weight() const >@@ -349,7 +351,9 @@ String FontFace::weight() const > builder.append(minimumNonKeyword->cssText()); > builder.append(' '); > builder.append(maximumNonKeyword->cssText()); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String FontFace::stretch() const >@@ -370,7 +374,9 @@ String FontFace::stretch() const > builder.append(minimumNonKeyword->cssText()); > builder.append(' '); > builder.append(maximumNonKeyword->cssText()); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String FontFace::unicodeRange() const >diff --git a/Source/WebCore/css/MediaList.cpp b/Source/WebCore/css/MediaList.cpp >index 45750af..4269404 100644 >--- a/Source/WebCore/css/MediaList.cpp >+++ b/Source/WebCore/css/MediaList.cpp >@@ -151,7 +151,9 @@ String MediaQuerySet::mediaText() const > text.append(query.cssText()); > needComma = true; > } >- return text.toString(); >+ if (auto string = text.toString()) >+ return *string; >+ CRASH(); > } > > void MediaQuerySet::shrinkToFit() >diff --git a/Source/WebCore/css/MediaQuery.cpp b/Source/WebCore/css/MediaQuery.cpp >index 9d0badf..4070d7a 100644 >--- a/Source/WebCore/css/MediaQuery.cpp >+++ b/Source/WebCore/css/MediaQuery.cpp >@@ -66,7 +66,9 @@ String MediaQuery::serialize() const > result.append(expression.serialize()); > needsAnd = true; > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > MediaQuery::MediaQuery(Restrictor restrictor, const String& mediaType, Vector<MediaQueryExpression>&& expressions) >diff --git a/Source/WebCore/css/MediaQueryExpression.cpp b/Source/WebCore/css/MediaQueryExpression.cpp >index 2d8e5f0..e0a22f3 100644 >--- a/Source/WebCore/css/MediaQueryExpression.cpp >+++ b/Source/WebCore/css/MediaQueryExpression.cpp >@@ -244,7 +244,10 @@ String MediaQueryExpression::serialize() const > } > result.append(')'); > >- m_serializationCache = result.toString(); >+ if (auto string = result.toString()) >+ m_serializationCache = *string; >+ else >+ CRASH(); > return m_serializationCache; > } > >diff --git a/Source/WebCore/css/Rect.h b/Source/WebCore/css/Rect.h >index ec1aae8..dfae176 100644 >--- a/Source/WebCore/css/Rect.h >+++ b/Source/WebCore/css/Rect.h >@@ -103,7 +103,9 @@ private: > } > } > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > }; > >diff --git a/Source/WebCore/css/StyleProperties.cpp b/Source/WebCore/css/StyleProperties.cpp >index 3c8ce43..bff172b 100644 >--- a/Source/WebCore/css/StyleProperties.cpp >+++ b/Source/WebCore/css/StyleProperties.cpp >@@ -343,7 +343,9 @@ String StyleProperties::fontValue() const > result.append(fontFamilyProperty.value()->cssText()); > if (isInitialOrInherit(commonValue)) > return commonValue; >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String StyleProperties::get4Values(const StylePropertyShorthand& shorthand) const >@@ -397,7 +399,9 @@ String StyleProperties::get4Values(const StylePropertyShorthand& shorthand) cons > result.append(' '); > result.append(left.value()->cssText()); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String StyleProperties::getLayeredShorthandValue(const StylePropertyShorthand& shorthand) const >@@ -543,7 +547,9 @@ String StyleProperties::getLayeredShorthandValue(const StylePropertyShorthand& s > > if (result.isEmpty()) > return String(); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String StyleProperties::getShorthandValue(const StylePropertyShorthand& shorthand) const >@@ -572,7 +578,9 @@ String StyleProperties::getShorthandValue(const StylePropertyShorthand& shorthan > return commonValue; > if (result.isEmpty()) > return String(); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > // only returns a non-null value if all properties have the same, non-null value >@@ -634,7 +642,11 @@ String StyleProperties::borderPropertyValue(CommonValueMode valueMode) const > } > if (isInitialOrInherit(commonValue)) > return commonValue; >- return result.isEmpty() ? String() : result.toString(); >+ if (result.isEmpty()) >+ return String(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > RefPtr<CSSValue> StyleProperties::getPropertyCSSValue(CSSPropertyID propertyID) const >@@ -1146,7 +1158,9 @@ String StyleProperties::asText() const > } > > ASSERT(!numDecls ^ !result.isEmpty()); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > bool StyleProperties::hasCSSOMWrapper() const >@@ -1403,7 +1417,9 @@ String StyleProperties::PropertyReference::cssText() const > if (isImportant()) > result.appendLiteral(" !important"); > result.append(';'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > Ref<DeferredStyleProperties> DeferredStyleProperties::create(const CSSParserTokenRange& tokenRange, CSSDeferredParser& parser) >diff --git a/Source/WebCore/css/WebKitCSSMatrix.cpp b/Source/WebCore/css/WebKitCSSMatrix.cpp >index 7bde64d..1f78d12 100644 >--- a/Source/WebCore/css/WebKitCSSMatrix.cpp >+++ b/Source/WebCore/css/WebKitCSSMatrix.cpp >@@ -249,7 +249,9 @@ ExceptionOr<String> WebKitCSSMatrix::toString() const > builder.append(String::numberToStringECMAScript(m_matrix.m44())); > } > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return WTFMove(*string); >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/css/WebKitCSSViewportRule.cpp b/Source/WebCore/css/WebKitCSSViewportRule.cpp >index cbd172f..de6ec95 100644 >--- a/Source/WebCore/css/WebKitCSSViewportRule.cpp >+++ b/Source/WebCore/css/WebKitCSSViewportRule.cpp >@@ -72,7 +72,9 @@ String WebKitCSSViewportRule::cssText() const > > result.append('}'); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void WebKitCSSViewportRule::reattach(StyleRuleBase& rule) >diff --git a/Source/WebCore/css/parser/CSSParser.cpp b/Source/WebCore/css/parser/CSSParser.cpp >index 954ab08..ecbfabd 100644 >--- a/Source/WebCore/css/parser/CSSParser.cpp >+++ b/Source/WebCore/css/parser/CSSParser.cpp >@@ -299,10 +299,13 @@ RefPtr<CSSValue> CSSParser::parseFontFaceDescriptor(CSSPropertyID propertyID, co > builder.appendLiteral(" : "); > builder.append(propertyValue); > builder.appendLiteral("; }"); >- RefPtr<StyleRuleBase> rule = parseRule(context, nullptr, builder.toString()); >- if (!rule || !rule->isFontFaceRule()) >- return nullptr; >- return downcast<StyleRuleFontFace>(*rule.get()).properties().getPropertyCSSValue(propertyID); >+ if (auto string = builder.toString()) { >+ RefPtr<StyleRuleBase> rule = parseRule(context, nullptr, *string); >+ if (!rule || !rule->isFontFaceRule()) >+ return nullptr; >+ return downcast<StyleRuleFontFace>(*rule.get()).properties().getPropertyCSSValue(propertyID); >+ } >+ CRASH(); > } > > } >diff --git a/Source/WebCore/css/parser/CSSParserToken.cpp b/Source/WebCore/css/parser/CSSParserToken.cpp >index 7b8e603..5d1016d 100644 >--- a/Source/WebCore/css/parser/CSSParserToken.cpp >+++ b/Source/WebCore/css/parser/CSSParserToken.cpp >@@ -392,7 +392,8 @@ void CSSParserToken::serialize(StringBuilder& builder) const > break; > case FunctionToken: > serializeIdentifier(value().toString(), builder); >- return builder.append('('); >+ builder.append('('); >+ return; > case AtKeywordToken: > builder.append('@'); > serializeIdentifier(value().toString(), builder); >@@ -404,69 +405,97 @@ void CSSParserToken::serialize(StringBuilder& builder) const > case UrlToken: > builder.append("url("); > serializeIdentifier(value().toString(), builder); >- return builder.append(')'); >+ builder.append(')'); >+ return; > case DelimiterToken: >- if (delimiter() == '\\') >- return builder.append("\\\n"); >- return builder.append(delimiter()); >+ if (delimiter() == '\\') { >+ builder.append("\\\n"); >+ return; >+ } >+ builder.append(delimiter()); >+ return; > case NumberToken: > // These won't properly preserve the NumericValueType flag > if (m_numericSign == PlusSign) > builder.append('+'); >- return builder.appendNumber(numericValue()); >+ builder.appendNumber(numericValue()); >+ return; > case PercentageToken: > builder.appendNumber(numericValue()); >- return builder.append('%'); >+ builder.append('%'); >+ return; > case DimensionToken: > // This will incorrectly serialize e.g. 4e3e2 as 4000e2 > builder.appendNumber(numericValue()); > serializeIdentifier(value().toString(), builder); > break; > case UnicodeRangeToken: >- return builder.append(String::format("U+%X-%X", unicodeRangeStart(), unicodeRangeEnd())); >+ builder.append(String::format("U+%X-%X", unicodeRangeStart(), unicodeRangeEnd())); >+ return; > case StringToken: >- return serializeString(value().toString(), builder); >+ serializeString(value().toString(), builder); >+ return; > > case IncludeMatchToken: >- return builder.append("~="); >+ builder.append("~="); >+ return; > case DashMatchToken: >- return builder.append("|="); >+ builder.append("|="); >+ return; > case PrefixMatchToken: >- return builder.append("^="); >+ builder.append("^="); >+ return; > case SuffixMatchToken: >- return builder.append("$="); >+ builder.append("$="); >+ return; > case SubstringMatchToken: >- return builder.append("*="); >+ builder.append("*="); >+ return; > case ColumnToken: >- return builder.append("||"); >+ builder.append("||"); >+ return; > case CDOToken: >- return builder.append("<!--"); >+ builder.append("<!--"); >+ return; > case CDCToken: >- return builder.append("-->"); >+ builder.append("-->"); >+ return; > case BadStringToken: >- return builder.append("'\n"); >+ builder.append("'\n"); >+ return; > case BadUrlToken: >- return builder.append("url(()"); >+ builder.append("url(()"); >+ return; > case WhitespaceToken: >- return builder.append(' '); >+ builder.append(' '); >+ return; > case ColonToken: >- return builder.append(':'); >+ builder.append(':'); >+ return; > case SemicolonToken: >- return builder.append(';'); >+ builder.append(';'); >+ return; > case CommaToken: >- return builder.append(','); >+ builder.append(','); >+ return; > case LeftParenthesisToken: >- return builder.append('('); >+ builder.append('('); >+ return; > case RightParenthesisToken: >- return builder.append(')'); >+ builder.append(')'); >+ return; > case LeftBracketToken: >- return builder.append('['); >+ builder.append('['); >+ return; > case RightBracketToken: >- return builder.append(']'); >+ builder.append(']'); >+ return; > case LeftBraceToken: >- return builder.append('{'); >+ builder.append('{'); >+ return; > case RightBraceToken: >- return builder.append('}'); >+ builder.append('}'); >+ return; > > case EOFToken: > case CommentToken: >diff --git a/Source/WebCore/css/parser/CSSParserTokenRange.cpp b/Source/WebCore/css/parser/CSSParserTokenRange.cpp >index cb9c580..efe5a2f 100644 >--- a/Source/WebCore/css/parser/CSSParserTokenRange.cpp >+++ b/Source/WebCore/css/parser/CSSParserTokenRange.cpp >@@ -113,7 +113,9 @@ String CSSParserTokenRange::serialize() const > StringBuilder builder; > for (const CSSParserToken* it = m_first; it < m_last; ++it) > it->serialize(builder); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/css/parser/CSSPropertyParser.cpp b/Source/WebCore/css/parser/CSSPropertyParser.cpp >index bcece70..309075e 100644 >--- a/Source/WebCore/css/parser/CSSPropertyParser.cpp >+++ b/Source/WebCore/css/parser/CSSPropertyParser.cpp >@@ -1016,7 +1016,9 @@ static String concatenateFamilyName(CSSParserTokenRange& range) > } > if (!addedSpace && isCSSWideKeyword(firstToken.id())) > return String(); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static RefPtr<CSSValue> consumeFamilyName(CSSParserTokenRange& range) >@@ -3264,7 +3266,10 @@ static Vector<String> parseGridTemplateAreasColumnNames(const String& gridRowNam > for (unsigned i = 0; i < text.length(); ++i) { > if (isCSSSpace(text[i])) { > if (!areaName.isEmpty()) { >- columnNames.append(areaName.toString()); >+ if (auto string = areaName.toString()) >+ columnNames.append(*string); >+ else >+ CRASH(); > areaName.clear(); > } > continue; >@@ -3273,14 +3278,20 @@ static Vector<String> parseGridTemplateAreasColumnNames(const String& gridRowNam > if (areaName == ".") > continue; > if (!areaName.isEmpty()) { >- columnNames.append(areaName.toString()); >+ if (auto string = areaName.toString()) >+ columnNames.append(*string); >+ else >+ CRASH(); > areaName.clear(); > } > } else { > if (!isNameCodePoint(text[i])) > return Vector<String>(); > if (areaName == ".") { >- columnNames.append(areaName.toString()); >+ if (auto string = areaName.toString()) >+ columnNames.append(*string); >+ else >+ CRASH(); > areaName.clear(); > } > } >@@ -3288,8 +3299,12 @@ static Vector<String> parseGridTemplateAreasColumnNames(const String& gridRowNam > areaName.append(text[i]); > } > >- if (!areaName.isEmpty()) >- columnNames.append(areaName.toString()); >+ if (!areaName.isEmpty()) { >+ if (auto string = areaName.toString()) >+ columnNames.append(*string); >+ else >+ CRASH(); >+ } > > return columnNames; > } >diff --git a/Source/WebCore/css/parser/CSSTokenizer.cpp b/Source/WebCore/css/parser/CSSTokenizer.cpp >index 1f1a23e..3b84e26 100644 >--- a/Source/WebCore/css/parser/CSSTokenizer.cpp >+++ b/Source/WebCore/css/parser/CSSTokenizer.cpp >@@ -605,8 +605,11 @@ CSSParserToken CSSTokenizer::consumeStringTokenUntil(UChar endingCodePoint) > StringBuilder output; > while (true) { > UChar cc = consume(); >- if (cc == endingCodePoint || cc == kEndOfFileMarker) >- return CSSParserToken(StringToken, registerString(output.toString())); >+ if (cc == endingCodePoint || cc == kEndOfFileMarker) { >+ if (auto string = output.toString()) >+ return CSSParserToken(StringToken, registerString(*string)); >+ CRASH(); >+ } > if (isNewLine(cc)) { > reconsume(cc); > return CSSParserToken(BadStringToken); >@@ -680,13 +683,19 @@ CSSParserToken CSSTokenizer::consumeUrlToken() > StringBuilder result; > while (true) { > UChar cc = consume(); >- if (cc == ')' || cc == kEndOfFileMarker) >- return CSSParserToken(UrlToken, registerString(result.toString())); >+ if (cc == ')' || cc == kEndOfFileMarker) { >+ if (auto string = result.toString()) >+ return CSSParserToken(UrlToken, registerString(*string)); >+ CRASH(); >+ } > > if (isHTMLSpace(cc)) { > m_input.advanceUntilNonWhitespace(); >- if (consumeIfNext(')') || m_input.nextInputChar() == kEndOfFileMarker) >- return CSSParserToken(UrlToken, registerString(result.toString())); >+ if (consumeIfNext(')') || m_input.nextInputChar() == kEndOfFileMarker) { >+ if (auto string = result.toString()) >+ return CSSParserToken(UrlToken, registerString(*string)); >+ CRASH(); >+ } > break; > } > >@@ -791,7 +800,9 @@ StringView CSSTokenizer::consumeName() > continue; > } > reconsume(cc); >- return registerString(result.toString()); >+ if (auto string = result.toString()) >+ return registerString(*string); >+ CRASH(); > } > } > >@@ -811,11 +822,14 @@ UChar32 CSSTokenizer::consumeEscape() > }; > consumeSingleWhitespaceIfNext(); > bool ok = false; >- UChar32 codePoint = hexChars.toString().toUIntStrict(&ok, 16); >- ASSERT(ok); >- if (!codePoint || (0xD800 <= codePoint && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) >- return replacementCharacter; >- return codePoint; >+ if (auto string = hexChars.toString()) { >+ UChar32 codePoint = string->toUIntStrict(&ok, 16); >+ ASSERT(ok); >+ if (!codePoint || (0xD800 <= codePoint && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) >+ return replacementCharacter; >+ return codePoint; >+ } >+ CRASH(); > } > > if (cc == kEndOfFileMarker) >diff --git a/Source/WebCore/dom/DatasetDOMStringMap.cpp b/Source/WebCore/dom/DatasetDOMStringMap.cpp >index f2d8420..d5667b5 100644 >--- a/Source/WebCore/dom/DatasetDOMStringMap.cpp >+++ b/Source/WebCore/dom/DatasetDOMStringMap.cpp >@@ -65,7 +65,9 @@ static String convertAttributeNameToPropertyName(const String& name) > } > } > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static bool propertyNameMatchesAttributeName(const String& propertyName, const String& attributeName) >diff --git a/Source/WebCore/dom/Element.cpp b/Source/WebCore/dom/Element.cpp >index 0a23263..8814548 100644 >--- a/Source/WebCore/dom/Element.cpp >+++ b/Source/WebCore/dom/Element.cpp >@@ -2197,7 +2197,10 @@ void Element::formatForDebugger(char* buffer, unsigned length) const > result.append(s); > } > >- strncpy(buffer, result.toString().utf8().data(), length - 1); >+ if (auto string = result.toString()) >+ strncpy(buffer, string->utf8().data(), length - 1); >+ else >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/dom/Node.cpp b/Source/WebCore/dom/Node.cpp >index 4b1e872..8fcbd7c 100644 >--- a/Source/WebCore/dom/Node.cpp >+++ b/Source/WebCore/dom/Node.cpp >@@ -1519,7 +1519,9 @@ String Node::textContent(bool convertBRsToNewlines) const > StringBuilder content; > bool isNullString = true; > appendTextContent(this, convertBRsToNewlines, isNullString, content); >- return isNullString ? String() : content.toString(); >+ if (auto string = content.toString()) >+ return isNullString ? String() : *string; >+ CRASH(); > } > > ExceptionOr<void> Node::setTextContent(const String& text) >@@ -1730,7 +1732,10 @@ void Node::showNode(const char* prefix) const > StringBuilder attrs; > appendAttributeDesc(this, attrs, classAttr, " CLASS="); > appendAttributeDesc(this, attrs, styleAttr, " STYLE="); >- fprintf(stderr, "%s%s\t%p (renderer %p) %s%s%s\n", prefix, nodeName().utf8().data(), this, renderer(), attrs.toString().utf8().data(), needsStyleRecalc() ? " (needs style recalc)" : "", childNeedsStyleRecalc() ? " (child needs style recalc)" : ""); >+ if (auto string = attrs.toString()) >+ fprintf(stderr, "%s%s\t%p (renderer %p) %s%s%s\n", prefix, nodeName().utf8().data(), this, renderer(), string->utf8().data(), needsStyleRecalc() ? " (needs style recalc)" : "", childNeedsStyleRecalc() ? " (child needs style recalc)" : ""); >+ else >+ CRASH(); > } > } > >@@ -1802,12 +1807,19 @@ static void traverseTreeAndMark(const String& baseIndent, const Node* rootNode, > indent.append(baseIndent); > for (const Node* tmpNode = node; tmpNode && tmpNode != rootNode; tmpNode = tmpNode->parentOrShadowHostNode()) > indent.append('\t'); >- fprintf(stderr, "%s", indent.toString().utf8().data()); >+ if (auto string = indent.toString()) >+ fprintf(stderr, "%s", string->utf8().data()); >+ else >+ CRASH(); > node->showNode(); > indent.append('\t'); > if (!node->isShadowRoot()) { >- if (ShadowRoot* shadowRoot = node->shadowRoot()) >- traverseTreeAndMark(indent.toString(), shadowRoot, markedNode1, markedLabel1, markedNode2, markedLabel2); >+ if (ShadowRoot* shadowRoot = node->shadowRoot()) { >+ if (auto string = indent.toString()) >+ traverseTreeAndMark(*string, shadowRoot, markedNode1, markedLabel1, markedNode2, markedLabel2); >+ else >+ CRASH(); >+ } > } > } > } >diff --git a/Source/WebCore/dom/Position.cpp b/Source/WebCore/dom/Position.cpp >index 89a506f..a52016c 100644 >--- a/Source/WebCore/dom/Position.cpp >+++ b/Source/WebCore/dom/Position.cpp >@@ -1419,7 +1419,10 @@ void Position::formatForDebugger(char* buffer, unsigned length) const > result.append(s); > } > >- strncpy(buffer, result.toString().utf8().data(), length - 1); >+ if (auto string = result.toString()) >+ strncpy(buffer, string->utf8().data(), length - 1); >+ else >+ CRASH(); > } > > void Position::showAnchorTypeAndOffset() const >diff --git a/Source/WebCore/dom/Range.cpp b/Source/WebCore/dom/Range.cpp >index a57a5e2..159870c 100644 >--- a/Source/WebCore/dom/Range.cpp >+++ b/Source/WebCore/dom/Range.cpp >@@ -949,7 +949,9 @@ String Range::toString() const > } > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String Range::toHTML() const >@@ -1535,7 +1537,10 @@ void Range::formatForDebugger(char* buffer, unsigned length) const > endContainer().formatForDebugger(s, FormatBufferSize); > result.append(s); > >- strncpy(buffer, result.toString().utf8().data(), length - 1); >+ if (auto string = result.toString()) >+ strncpy(buffer, string->utf8().data(), length - 1); >+ else >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/dom/ScriptedAnimationController.cpp b/Source/WebCore/dom/ScriptedAnimationController.cpp >index c4d85d8..a50390c 100644 >--- a/Source/WebCore/dom/ScriptedAnimationController.cpp >+++ b/Source/WebCore/dom/ScriptedAnimationController.cpp >@@ -112,7 +112,9 @@ static String throttlingReasonsToString(OptionSet<ScriptedAnimationController::T > builder.append('|'); > builder.append(throttlingReasonToString(reason)); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > #endif >diff --git a/Source/WebCore/dom/SecurityContext.cpp b/Source/WebCore/dom/SecurityContext.cpp >index 4f8f1a8..148221e 100644 >--- a/Source/WebCore/dom/SecurityContext.cpp >+++ b/Source/WebCore/dom/SecurityContext.cpp >@@ -152,7 +152,10 @@ SandboxFlags SecurityContext::parseSandboxPolicy(const String& policy, String& i > tokenErrors.appendLiteral(" are invalid sandbox flags."); > else > tokenErrors.appendLiteral(" is an invalid sandbox flag."); >- invalidTokensErrorMessage = tokenErrors.toString(); >+ if (auto string = tokenErrors.toString()) >+ invalidTokensErrorMessage = *string; >+ else >+ CRASH(); > } > > return flags; >diff --git a/Source/WebCore/dom/Text.cpp b/Source/WebCore/dom/Text.cpp >index 7315d16..b327f54 100644 >--- a/Source/WebCore/dom/Text.cpp >+++ b/Source/WebCore/dom/Text.cpp >@@ -113,7 +113,9 @@ String Text::wholeText() const > StringBuilder result; > for (const Text* text = startText; text != onePastEndText; text = TextNodeTraversal::nextSibling(*text)) > result.append(text->data()); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > RefPtr<Text> Text::replaceWholeText(const String& newText) >@@ -240,7 +242,10 @@ void Text::formatForDebugger(char* buffer, unsigned length) const > result.append('"'); > } > >- strncpy(buffer, result.toString().utf8().data(), length - 1); >+ if (auto string = result.toString()) >+ strncpy(buffer, string->utf8().data(), length - 1); >+ else >+ CRASH(); > buffer[length - 1] = '\0'; > } > #endif >diff --git a/Source/WebCore/dom/TextNodeTraversal.cpp b/Source/WebCore/dom/TextNodeTraversal.cpp >index b78ca79..6d418d2 100644 >--- a/Source/WebCore/dom/TextNodeTraversal.cpp >+++ b/Source/WebCore/dom/TextNodeTraversal.cpp >@@ -42,7 +42,9 @@ String contentsAsString(const ContainerNode& root) > { > StringBuilder result; > appendContents(root, result); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String contentsAsString(const Node& root) >@@ -59,7 +61,9 @@ String childTextContent(const ContainerNode& root) > StringBuilder result; > for (Text* text = TextNodeTraversal::firstChild(root); text; text = TextNodeTraversal::nextSibling(*text)) > result.append(text->data()); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/editing/ApplyStyleCommand.cpp b/Source/WebCore/editing/ApplyStyleCommand.cpp >index 69d8af2..ae16f2e 100644 >--- a/Source/WebCore/editing/ApplyStyleCommand.cpp >+++ b/Source/WebCore/editing/ApplyStyleCommand.cpp >@@ -1382,7 +1382,10 @@ void ApplyStyleCommand::addBlockStyle(const StyleChange& styleChange, HTMLElemen > cssText.append(' '); > cssText.append(decl->asText()); > } >- setNodeAttribute(block, styleAttr, cssText.toString()); >+ if (auto string = cssText.toString()) >+ setNodeAttribute(block, styleAttr, *string); >+ else >+ CRASH(); > } > > void ApplyStyleCommand::addInlineStyleIfNeeded(EditingStyle* style, Node& start, Node& end, EAddStyledElement addStyledElement) >diff --git a/Source/WebCore/editing/Editing.cpp b/Source/WebCore/editing/Editing.cpp >index e79b646..30c1680 100644 >--- a/Source/WebCore/editing/Editing.cpp >+++ b/Source/WebCore/editing/Editing.cpp >@@ -429,7 +429,9 @@ String stringWithRebalancedWhitespace(const String& string, bool startIsStartOfP > > rebalancedString.reserveCapacity(length); > rebalancedString.append(string, rebalancedString.length(), length - rebalancedString.length()); >- return rebalancedString.toString(); >+ if (auto string = rebalancedString.toString()) >+ return *string; >+ CRASH(); > } > > bool isTableStructureNode(const Node* node) >diff --git a/Source/WebCore/editing/HTMLInterchange.cpp b/Source/WebCore/editing/HTMLInterchange.cpp >index b22343b..cf85230 100644 >--- a/Source/WebCore/editing/HTMLInterchange.cpp >+++ b/Source/WebCore/editing/HTMLInterchange.cpp >@@ -95,7 +95,9 @@ String convertHTMLTextToInterchangeFormat(const String& in, const Text* node) > i += consumed; > } > >- return s.toString(); >+ if (auto string = s.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/editing/MarkupAccumulator.cpp b/Source/WebCore/editing/MarkupAccumulator.cpp >index 906967f..67e76c2 100644 >--- a/Source/WebCore/editing/MarkupAccumulator.cpp >+++ b/Source/WebCore/editing/MarkupAccumulator.cpp >@@ -130,7 +130,9 @@ MarkupAccumulator::~MarkupAccumulator() = default; > String MarkupAccumulator::serializeNodes(Node& targetNode, EChildrenOnly childrenOnly, Vector<QualifiedName>* tagNamesToSkip) > { > serializeNodesWithNamespaces(targetNode, childrenOnly, 0, tagNamesToSkip); >- return m_markup.toString(); >+ if (auto string = m_markup.toString()) >+ return *string; >+ CRASH(); > } > > void MarkupAccumulator::serializeNodesWithNamespaces(Node& targetNode, EChildrenOnly childrenOnly, const Namespaces* namespaces, Vector<QualifiedName>* tagNamesToSkip) >@@ -483,11 +485,14 @@ void MarkupAccumulator::generateUniquePrefix(QualifiedName& prefixedName, const > builder.clear(); > builder.appendLiteral("NS"); > builder.appendNumber(++m_prefixLevel); >- const AtomicString& name = builder.toAtomicString(); >- if (!namespaces.get(name.impl())) { >- prefixedName.setPrefix(name); >- return; >- } >+ if (auto string = builder.toAtomicString()) { >+ const AtomicString& name = *string; >+ if (!namespaces.get(name.impl())) { >+ prefixedName.setPrefix(name); >+ return; >+ } >+ } else >+ CRASH(); > } while (true); > } > >diff --git a/Source/WebCore/editing/TextIterator.cpp b/Source/WebCore/editing/TextIterator.cpp >index 6574f1e..f5431ef 100644 >--- a/Source/WebCore/editing/TextIterator.cpp >+++ b/Source/WebCore/editing/TextIterator.cpp >@@ -2667,12 +2667,15 @@ String plainText(const Range* r, TextIteratorBehavior defaultBehavior, bool isDi > if (!bufferLength) > return emptyString(); > >- String result = builder.toString(); >+ if (auto string = builder.toString()) { >+ String result = *string; > >- if (isDisplayString) >- r->ownerDocument().displayStringModifiedByEncoding(result); >+ if (isDisplayString) >+ r->ownerDocument().displayStringModifiedByEncoding(result); > >- return result; >+ return result; >+ } >+ CRASH(); > } > > String plainTextReplacingNoBreakSpace(const Range* range, TextIteratorBehavior defaultBehavior, bool isDisplayString) >diff --git a/Source/WebCore/editing/TypingCommand.cpp b/Source/WebCore/editing/TypingCommand.cpp >index fd79066..bee63dd 100644 >--- a/Source/WebCore/editing/TypingCommand.cpp >+++ b/Source/WebCore/editing/TypingCommand.cpp >@@ -425,7 +425,9 @@ RefPtr<DataTransfer> TypingCommand::inputEventDataTransfer() const > > StringBuilder htmlText; > MarkupAccumulator::appendCharactersReplacingEntities(htmlText, m_currentTextToInsert, 0, m_currentTextToInsert.length(), EntityMaskInHTMLPCDATA); >- return DataTransfer::createForInputEvent(m_currentTextToInsert, htmlText.toString()); >+ if (auto string = htmlText.toString()) >+ return DataTransfer::createForInputEvent(m_currentTextToInsert, *string); >+ CRASH(); > } > > void TypingCommand::didApplyCommand() >diff --git a/Source/WebCore/editing/VisibleSelection.cpp b/Source/WebCore/editing/VisibleSelection.cpp >index 18650ab..73accc7 100644 >--- a/Source/WebCore/editing/VisibleSelection.cpp >+++ b/Source/WebCore/editing/VisibleSelection.cpp >@@ -707,7 +707,10 @@ void VisibleSelection::formatForDebugger(char* buffer, unsigned length) const > result.append(s); > } > >- strncpy(buffer, result.toString().utf8().data(), length - 1); >+ if (auto string = result.toString()) >+ strncpy(buffer, string->utf8().data(), length - 1); >+ else >+ CRASH(); > } > > void VisibleSelection::showTreeForThis() const >diff --git a/Source/WebCore/editing/cocoa/DataDetection.mm b/Source/WebCore/editing/cocoa/DataDetection.mm >index f445616..e98644c 100644 >--- a/Source/WebCore/editing/cocoa/DataDetection.mm >+++ b/Source/WebCore/editing/cocoa/DataDetection.mm >@@ -319,7 +319,9 @@ static String dataDetectorStringForPath(NSIndexPath *path) > stringBuilder.appendNumber((unsigned long)[path indexAtPosition:0]); > stringBuilder.append('/'); > stringBuilder.appendNumber((unsigned long)[path indexAtPosition:1]); >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > default: { > StringBuilder stringBuilder; >@@ -329,7 +331,9 @@ static String dataDetectorStringForPath(NSIndexPath *path) > stringBuilder.appendNumber((unsigned long)[path indexAtPosition:i]); > } > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > } > } >diff --git a/Source/WebCore/editing/cocoa/HTMLConverter.mm b/Source/WebCore/editing/cocoa/HTMLConverter.mm >index 6b1397e..5d32938 100644 >--- a/Source/WebCore/editing/cocoa/HTMLConverter.mm >+++ b/Source/WebCore/editing/cocoa/HTMLConverter.mm >@@ -2254,7 +2254,10 @@ void HTMLConverter::_processText(CharacterData& characterData) > } > if (wasSpace) > builder.append(' '); >- outputString = builder.toString(); >+ if (auto string = builder.toString()) >+ outputString = *string; >+ else >+ CRASH(); > } > > if (outputString.length()) { >diff --git a/Source/WebCore/editing/ios/EditorIOS.mm b/Source/WebCore/editing/ios/EditorIOS.mm >index 5621355..2fe5462 100644 >--- a/Source/WebCore/editing/ios/EditorIOS.mm >+++ b/Source/WebCore/editing/ios/EditorIOS.mm >@@ -284,7 +284,10 @@ void Editor::setDictationPhrasesAsChildOfElement(const Vector<Vector<String>>& d > for (auto& interpretations : dictationPhrases) > dictationPhrasesBuilder.append(interpretations[0]); > >- element.appendChild(createFragmentFromText(*context, dictationPhrasesBuilder.toString())); >+ if (auto string = dictationPhrasesBuilder.toString()) >+ element.appendChild(createFragmentFromText(*context, *string)); >+ else >+ CRASH(); > > // We need a layout in order to add markers below. > document().updateLayout(); >diff --git a/Source/WebCore/editing/markup.cpp b/Source/WebCore/editing/markup.cpp >index 5551eec..d568810 100644 >--- a/Source/WebCore/editing/markup.cpp >+++ b/Source/WebCore/editing/markup.cpp >@@ -290,7 +290,10 @@ void StyledMarkupAccumulator::wrapWithNode(Node& node, bool convertBlocksToInlin > appendElement(markup, downcast<Element>(node), convertBlocksToInlines && isBlock(&node), rangeFullySelectsNode); > else > appendStartMarkup(markup, node, nullptr); >- m_reversedPrecedingMarkup.append(markup.toString()); >+ if (auto string = markup.toString()) >+ m_reversedPrecedingMarkup.append(*string); >+ else >+ CRASH(); > appendEndTag(node); > if (m_nodes) > m_nodes->append(&node); >@@ -300,7 +303,10 @@ void StyledMarkupAccumulator::wrapWithStyleNode(StyleProperties* style, Document > { > StringBuilder openTag; > appendStyleNodeOpenTag(openTag, style, document, isBlock); >- m_reversedPrecedingMarkup.append(openTag.toString()); >+ if (auto string = openTag.toString()) >+ m_reversedPrecedingMarkup.append(*string); >+ else >+ CRASH(); > appendString(styleNodeCloseTag(isBlock)); > } > >@@ -334,7 +340,9 @@ String StyledMarkupAccumulator::takeResults() > concatenateMarkup(result); > > // We remove '\0' characters because they are not visibly rendered to the user. >- return result.toString().replaceWithLiteral('\0', ""); >+ if (auto string = result.toString()) >+ return string->replaceWithLiteral('\0', ""); >+ CRASH(); > } > > void StyledMarkupAccumulator::appendText(StringBuilder& out, const Text& text) >@@ -359,7 +367,10 @@ void StyledMarkupAccumulator::appendText(StringBuilder& out, const Text& text) > String content = useRenderedText ? renderedText(text, m_range) : stringValueForRange(text, m_range); > StringBuilder buffer; > appendCharactersReplacingEntities(buffer, content, 0, content.length(), EntityMaskInPCDATA); >- out.append(convertHTMLTextToInterchangeFormat(buffer.toString(), &text)); >+ if (auto string = buffer.toString()) >+ out.append(convertHTMLTextToInterchangeFormat(*string, &text)); >+ else >+ CRASH(); > } > > if (wrappingSpan) >@@ -873,7 +884,9 @@ String sanitizedMarkupForFragmentInDocument(Ref<DocumentFragment>&& fragment, Do > "xmlns=\"http://www.w3.org/TR/REC-html40\">"); > builder.append(result); > builder.appendLiteral("</html>"); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > return result; >@@ -1092,7 +1105,9 @@ String urlToMarkup(const URL& url, const String& title) > markup.appendLiteral("\">"); > MarkupAccumulator::appendCharactersReplacingEntities(markup, title, 0, title.length(), EntityMaskInPCDATA); > markup.appendLiteral("</a>"); >- return markup.toString(); >+ if (auto string = markup.toString()) >+ return *string; >+ CRASH(); > } > > ExceptionOr<Ref<DocumentFragment>> createFragmentForInnerOuterHTML(Element& contextElement, const String& markup, ParserContentPolicy parserContentPolicy) >diff --git a/Source/WebCore/fileapi/FileReaderLoader.cpp b/Source/WebCore/fileapi/FileReaderLoader.cpp >index 9a2234f..28345ab 100644 >--- a/Source/WebCore/fileapi/FileReaderLoader.cpp >+++ b/Source/WebCore/fileapi/FileReaderLoader.cpp >@@ -337,20 +337,20 @@ void FileReaderLoader::convertToDataURL() > StringBuilder builder; > builder.appendLiteral("data:"); > >- if (!m_bytesLoaded) { >- m_stringResult = builder.toString(); >- return; >+ if (m_bytesLoaded) { >+ builder.append(m_dataType); >+ builder.appendLiteral(";base64,"); >+ >+ Vector<char> out; >+ base64Encode(m_rawData->data(), m_bytesLoaded, out); >+ out.append('\0'); >+ builder.append(out.data()); > } > >- builder.append(m_dataType); >- builder.appendLiteral(";base64,"); >- >- Vector<char> out; >- base64Encode(m_rawData->data(), m_bytesLoaded, out); >- out.append('\0'); >- builder.append(out.data()); >- >- m_stringResult = builder.toString(); >+ if (auto string = builder.toString()) >+ m_stringResult = *string; >+ else >+ CRASH(); > } > > bool FileReaderLoader::isCompleted() const >diff --git a/Source/WebCore/html/DOMTokenList.cpp b/Source/WebCore/html/DOMTokenList.cpp >index c95f969..db42968 100644 >--- a/Source/WebCore/html/DOMTokenList.cpp >+++ b/Source/WebCore/html/DOMTokenList.cpp >@@ -273,10 +273,13 @@ void DOMTokenList::updateAssociatedAttributeFromTokens() > builder.append(' '); > builder.append(token); > } >- AtomicString serializedValue = builder.toAtomicString(); >+ if (auto string = builder.toAtomicString()) { >+ AtomicString serializedValue = *string; > >- SetForScope<bool> inAttributeUpdate(m_inUpdateAssociatedAttributeFromTokens, true); >- m_element.setAttribute(m_attributeName, serializedValue); >+ SetForScope<bool> inAttributeUpdate(m_inUpdateAssociatedAttributeFromTokens, true); >+ m_element.setAttribute(m_attributeName, serializedValue); >+ } else >+ CRASH(); > } > > Vector<AtomicString>& DOMTokenList::tokens() >diff --git a/Source/WebCore/html/EmailInputType.cpp b/Source/WebCore/html/EmailInputType.cpp >index b93e12b..5836c7f 100644 >--- a/Source/WebCore/html/EmailInputType.cpp >+++ b/Source/WebCore/html/EmailInputType.cpp >@@ -104,7 +104,9 @@ String EmailInputType::sanitizeValue(const String& proposedValue) const > strippedValue.append(','); > strippedValue.append(stripLeadingAndTrailingHTMLSpaces(addresses[i])); > } >- return strippedValue.toString(); >+ if (auto string = strippedValue.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/html/FileInputType.cpp b/Source/WebCore/html/FileInputType.cpp >index 3e55a05..fdc49c5 100644 >--- a/Source/WebCore/html/FileInputType.cpp >+++ b/Source/WebCore/html/FileInputType.cpp >@@ -467,7 +467,9 @@ String FileInputType::defaultToolTip() const > if (i != listSize - 1) > names.append('\n'); > } >- return names.toString(); >+ if (auto string = names.toString()) >+ return *string; >+ CRASH(); > } > > >diff --git a/Source/WebCore/html/FormController.cpp b/Source/WebCore/html/FormController.cpp >index 0f5b775..1a29a44 100644 >--- a/Source/WebCore/html/FormController.cpp >+++ b/Source/WebCore/html/FormController.cpp >@@ -312,7 +312,9 @@ static inline String formSignature(const HTMLFormElement& form) > builder.append(actionURL.string()); > > recordFormStructure(form, builder); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > AtomicString FormKeyGenerator::formKey(const HTMLFormControlElementWithState& control) >diff --git a/Source/WebCore/html/HTMLAnchorElement.cpp b/Source/WebCore/html/HTMLAnchorElement.cpp >index 7152317..a7026f1 100644 >--- a/Source/WebCore/html/HTMLAnchorElement.cpp >+++ b/Source/WebCore/html/HTMLAnchorElement.cpp >@@ -400,10 +400,14 @@ void HTMLAnchorElement::handleClick(Event& event) > if (!frame) > return; > >- StringBuilder url; >- url.append(stripLeadingAndTrailingHTMLSpaces(attributeWithoutSynchronization(hrefAttr))); >- appendServerMapMousePosition(url, event); >- URL completedURL = document().completeURL(url.toString()); >+ URL completedURL = document().completeURL([&] () { >+ StringBuilder url; >+ url.append(stripLeadingAndTrailingHTMLSpaces(attributeWithoutSynchronization(hrefAttr))); >+ appendServerMapMousePosition(url, event); >+ if (auto string = url.toString()) >+ return *string; >+ CRASH(); >+ }()); > > String downloadAttribute; > #if ENABLE(DOWNLOAD_ATTRIBUTE) >diff --git a/Source/WebCore/html/HTMLCanvasElement.cpp b/Source/WebCore/html/HTMLCanvasElement.cpp >index 664edf0..b67b4c2 100644 >--- a/Source/WebCore/html/HTMLCanvasElement.cpp >+++ b/Source/WebCore/html/HTMLCanvasElement.cpp >@@ -336,8 +336,11 @@ CanvasRenderingContext2D* HTMLCanvasElement::createContext2d(const String& type) > stringBuilder.appendLiteral("Total canvas memory use exceeds the maximum limit ("); > stringBuilder.appendNumber(maxActivePixelMemory() / 1024 / 1024); > stringBuilder.appendLiteral(" MB)."); >- document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, stringBuilder.toString()); >- return nullptr; >+ if (auto string = stringBuilder.toString()) { >+ document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, *string); >+ return nullptr; >+ } >+ CRASH(); > } > > m_context = CanvasRenderingContext2D::create(*this, document().inQuirksMode(), usesDashboardCompatibilityMode); >@@ -889,8 +892,11 @@ void HTMLCanvasElement::createImageBuffer() const > stringBuilder.appendLiteral("Canvas area exceeds the maximum limit (width * height > "); > stringBuilder.appendNumber(maxCanvasArea); > stringBuilder.appendLiteral(")."); >- document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, stringBuilder.toString()); >- return; >+ if (auto string = stringBuilder.toString()) { >+ document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, *string); >+ return; >+ } >+ CRASH(); > } > > // Make sure we don't use more pixel memory than the system can support. >@@ -900,8 +906,11 @@ void HTMLCanvasElement::createImageBuffer() const > stringBuilder.appendLiteral("Total canvas memory use exceeds the maximum limit ("); > stringBuilder.appendNumber(maxActivePixelMemory() / 1024 / 1024); > stringBuilder.appendLiteral(" MB)."); >- document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, stringBuilder.toString()); >- return; >+ if (auto string = stringBuilder.toString()) { >+ document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, *string); >+ return; >+ } >+ CRASH(); > } > > if (!width() || !height()) >diff --git a/Source/WebCore/html/HTMLFontElement.cpp b/Source/WebCore/html/HTMLFontElement.cpp >index 8d6c347..c35a67e 100644 >--- a/Source/WebCore/html/HTMLFontElement.cpp >+++ b/Source/WebCore/html/HTMLFontElement.cpp >@@ -111,10 +111,13 @@ static bool parseFontSize(const CharacterType* characters, unsigned length, int& > // Step 8 > int value; > >+ if (digits.failed()) >+ CRASH(); >+ > if (digits.is8Bit()) >- value = charactersToIntStrict(digits.characters8(), digits.length()); >+ value = charactersToIntStrict(*digits.characters8(), digits.length()); > else >- value = charactersToIntStrict(digits.characters16(), digits.length()); >+ value = charactersToIntStrict(*digits.characters16(), digits.length()); > > // Step 9 > if (mode == RelativePlus) >diff --git a/Source/WebCore/html/HTMLImageElement.cpp b/Source/WebCore/html/HTMLImageElement.cpp >index 4f6597c..a2e1c16 100644 >--- a/Source/WebCore/html/HTMLImageElement.cpp >+++ b/Source/WebCore/html/HTMLImageElement.cpp >@@ -474,7 +474,9 @@ String HTMLImageElement::completeURLsInAttributeValue(const URL& base, const Att > result.append('w'); > } > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > return HTMLElement::completeURLsInAttributeValue(base, attribute); > } >diff --git a/Source/WebCore/html/HTMLMediaElement.cpp b/Source/WebCore/html/HTMLMediaElement.cpp >index de1c2e8..36fbca5 100644 >--- a/Source/WebCore/html/HTMLMediaElement.cpp >+++ b/Source/WebCore/html/HTMLMediaElement.cpp >@@ -232,9 +232,12 @@ static String actionName(HTMLMediaElementEnums::DelayedActionType action) > > #undef ACTION > >- String name = actionBuilder.toString(); >- ASSERT(!name.isEmpty()); >- return name; >+ if (auto string = actionBuilder.toString()) { >+ String name = *string; >+ ASSERT(!name.isEmpty()); >+ return name; >+ } >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/html/HTMLOptionElement.cpp b/Source/WebCore/html/HTMLOptionElement.cpp >index 9f6dad2..fa98aa8 100644 >--- a/Source/WebCore/html/HTMLOptionElement.cpp >+++ b/Source/WebCore/html/HTMLOptionElement.cpp >@@ -349,7 +349,9 @@ String HTMLOptionElement::collectOptionInnerText() const > else > node = NodeTraversal::next(*node, this); > } >- return text.toString(); >+ if (auto string = text.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace >diff --git a/Source/WebCore/html/HTMLTextFormControlElement.cpp b/Source/WebCore/html/HTMLTextFormControlElement.cpp >index ed14857..d0fb4b7 100644 >--- a/Source/WebCore/html/HTMLTextFormControlElement.cpp >+++ b/Source/WebCore/html/HTMLTextFormControlElement.cpp >@@ -143,7 +143,9 @@ String HTMLTextFormControlElement::strippedPlaceholder() const > continue; > stripped.append(character); > } >- return stripped.toString(); >+ if (auto string = stripped.toString()) >+ return *string; >+ CRASH(); > } > > static bool isNotLineBreak(UChar ch) { return ch != newlineCharacter && ch != carriageReturn; } >@@ -552,7 +554,9 @@ static String innerTextValueFrom(TextControlInnerTextElement& innerText) > result.append(downcast<Text>(*node).data()); > } > stripTrailingNewline(result); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void HTMLTextFormControlElement::setInnerTextValue(const String& value) >@@ -736,7 +740,9 @@ String HTMLTextFormControlElement::valueWithHardLineBreaks() const > getNextSoftBreak(line, breakNode, breakOffset); > } > stripTrailingNewline(result); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > HTMLTextFormControlElement* enclosingTextFormControl(const Position& position) >diff --git a/Source/WebCore/html/MediaDocument.cpp b/Source/WebCore/html/MediaDocument.cpp >index 119340f..6977123 100644 >--- a/Source/WebCore/html/MediaDocument.cpp >+++ b/Source/WebCore/html/MediaDocument.cpp >@@ -121,7 +121,10 @@ void MediaDocumentParser::createDocumentStructure() > #if PLATFORM(IOS) > elementStyle.appendLiteral("width: 100%; height: auto;"); > #endif >- videoElement->setAttribute(styleAttr, elementStyle.toString()); >+ if (auto string = elementStyle.toString()) >+ videoElement->setAttribute(styleAttr, *string); >+ else >+ CRASH(); > } > > body->appendChild(videoElement); >diff --git a/Source/WebCore/html/MediaElementSession.cpp b/Source/WebCore/html/MediaElementSession.cpp >index 5cd7905..6f4e0f9 100644 >--- a/Source/WebCore/html/MediaElementSession.cpp >+++ b/Source/WebCore/html/MediaElementSession.cpp >@@ -86,7 +86,9 @@ static String restrictionName(MediaElementSession::BehaviorRestrictions restrict > CASE(InvisibleAutoplayNotPermitted); > CASE(OverrideUserGestureRequirementForMainContent); > >- return restrictionBuilder.toString(); >+ if (auto string = restrictionBuilder.toString()) >+ return *string; >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/html/MediaFragmentURIParser.cpp b/Source/WebCore/html/MediaFragmentURIParser.cpp >index e7a516e..305b663 100644 >--- a/Source/WebCore/html/MediaFragmentURIParser.cpp >+++ b/Source/WebCore/html/MediaFragmentURIParser.cpp >@@ -52,7 +52,9 @@ static String collectDigits(const LChar* input, unsigned length, unsigned& posit > // DIGIT ; any positive number > while (position < length && isASCIIDigit(input[position])) > digits.append(input[position++]); >- return digits.toString(); >+ if (auto string = digits.toString()) >+ return *string; >+ CRASH(); > } > > static String collectFraction(const LChar* input, unsigned length, unsigned& position) >@@ -67,7 +69,9 @@ static String collectFraction(const LChar* input, unsigned length, unsigned& pos > digits.append(input[position++]); > while (position < length && isASCIIDigit(input[position])) > digits.append(input[position++]); >- return digits.toString(); >+ if (auto string = digits.toString()) >+ return *string; >+ CRASH(); > } > > MediaFragmentURIParser::MediaFragmentURIParser(const URL& url) >diff --git a/Source/WebCore/html/TypeAhead.cpp b/Source/WebCore/html/TypeAhead.cpp >index 764e502..3eec484 100644 >--- a/Source/WebCore/html/TypeAhead.cpp >+++ b/Source/WebCore/html/TypeAhead.cpp >@@ -80,7 +80,10 @@ int TypeAhead::handleEvent(KeyboardEvent* event, MatchModeFlags matchMode) > prefix = String(&c, 1); > m_repeatingChar = c; > } else if (matchMode & MatchPrefix) { >- prefix = m_buffer.toString(); >+ if (auto string = m_buffer.toString()) >+ prefix = *string; >+ else >+ CRASH(); > if (m_buffer.length() > 1) { > m_repeatingChar = 0; > searchStartOffset = 0; >@@ -104,9 +107,12 @@ int TypeAhead::handleEvent(KeyboardEvent* event, MatchModeFlags matchMode) > > if (matchMode & MatchIndex) { > bool ok = false; >- int index = m_buffer.toString().toInt(&ok); >- if (index > 0 && index <= optionCount) >- return index - 1; >+ if (auto string = m_buffer.toString()) { >+ int index = string->toInt(&ok); >+ if (index > 0 && index <= optionCount) >+ return index - 1; >+ } else >+ CRASH(); > } > return -1; > } >diff --git a/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp b/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp >index c27af23..d94fce5 100644 >--- a/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp >+++ b/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp >@@ -117,7 +117,9 @@ String CanvasRenderingContext2D::font() const > serializedFont.append(family); > } > >- return serializedFont.toString(); >+ if (auto string = serializedFont.toString()) >+ return *string; >+ CRASH(); > } > > void CanvasRenderingContext2D::setFont(const String& newFont) >diff --git a/Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp b/Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp >index 768c0fc..7a88cd4 100644 >--- a/Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp >+++ b/Source/WebCore/html/canvas/CanvasRenderingContext2DBase.cpp >@@ -2172,8 +2172,11 @@ ExceptionOr<RefPtr<ImageData>> CanvasRenderingContext2DBase::getImageData(ImageB > consoleMessage.appendLiteral(" x "); > consoleMessage.appendNumber(imageDataRect.height()); > >- canvasBase().scriptExecutionContext()->addConsoleMessage(MessageSource::Rendering, MessageLevel::Error, consoleMessage.toString()); >- return Exception { InvalidStateError }; >+ if (auto string = consoleMessage.toString()) { >+ canvasBase().scriptExecutionContext()->addConsoleMessage(MessageSource::Rendering, MessageLevel::Error, *string); >+ return Exception { InvalidStateError }; >+ } >+ CRASH(); > } > > return ImageData::create(imageDataRect.size(), byteArray.releaseNonNull()); >diff --git a/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp b/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp >index 7875da8..cd5ee1d 100644 >--- a/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp >+++ b/Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp >@@ -162,7 +162,9 @@ namespace { > > String result() > { >- return m_builder.toString(); >+ if (auto string = m_builder.toString()) >+ return *string; >+ CRASH(); > } > > private: >diff --git a/Source/WebCore/html/parser/HTMLSourceTracker.cpp b/Source/WebCore/html/parser/HTMLSourceTracker.cpp >index 22dba90..80b1e52 100644 >--- a/Source/WebCore/html/parser/HTMLSourceTracker.cpp >+++ b/Source/WebCore/html/parser/HTMLSourceTracker.cpp >@@ -83,8 +83,11 @@ String HTMLSourceTracker::source(const HTMLToken& token) > m_currentSource.advance(); > } > >- m_cachedSourceForToken = source.toString(); >- return m_cachedSourceForToken; >+ if (auto string = source.toString()) { >+ m_cachedSourceForToken = *string; >+ return m_cachedSourceForToken; >+ } >+ CRASH(); > } > > String HTMLSourceTracker::source(const HTMLToken& token, unsigned attributeStart, unsigned attributeEnd) >diff --git a/Source/WebCore/html/parser/HTMLTokenizer.cpp b/Source/WebCore/html/parser/HTMLTokenizer.cpp >index 8ac2f85..364ec0e 100644 >--- a/Source/WebCore/html/parser/HTMLTokenizer.cpp >+++ b/Source/WebCore/html/parser/HTMLTokenizer.cpp >@@ -141,8 +141,10 @@ inline bool HTMLTokenizer::processEntity(SegmentedString& source) > ASSERT(decodedEntity.isEmpty()); > bufferASCIICharacter('&'); > } else { >+ if (decodedEntity.failed()) >+ CRASH(); > for (unsigned i = 0; i < decodedEntity.length(); ++i) >- bufferCharacter(decodedEntity[i]); >+ bufferCharacter(*decodedEntity[i]); > } > return true; > } >@@ -863,8 +865,10 @@ bool HTMLTokenizer::processToken(SegmentedString& source) > ASSERT(decodedEntity.isEmpty()); > m_token.appendToAttributeValue('&'); > } else { >+ if (decodedEntity.failed()) >+ CRASH(); > for (unsigned i = 0; i < decodedEntity.length(); ++i) >- m_token.appendToAttributeValue(decodedEntity[i]); >+ m_token.appendToAttributeValue(*decodedEntity[i]); > } > // We're supposed to switch back to the attribute value state that > // we were in when we were switched into this state. Rather than >@@ -1403,7 +1407,9 @@ String HTMLTokenizer::bufferedCharacters() const > characters.append('<'); > characters.append('/'); > characters.append(m_temporaryBuffer.data(), m_temporaryBuffer.size()); >- return characters.toString(); >+ if (auto string = characters.toString()) >+ return *string; >+ CRASH(); > } > > void HTMLTokenizer::updateStateFor(const AtomicString& tagName) >diff --git a/Source/WebCore/html/parser/HTMLTreeBuilder.cpp b/Source/WebCore/html/parser/HTMLTreeBuilder.cpp >index b10a4c4..899d4bf 100644 >--- a/Source/WebCore/html/parser/HTMLTreeBuilder.cpp >+++ b/Source/WebCore/html/parser/HTMLTreeBuilder.cpp >@@ -2569,19 +2569,22 @@ void HTMLTreeBuilder::defaultForAfterHead() > > void HTMLTreeBuilder::defaultForInTableText() > { >- String characters = m_pendingTableCharacters.toString(); >- m_pendingTableCharacters.clear(); >- if (!isAllWhitespace(characters)) { >- // FIXME: parse error >- HTMLConstructionSite::RedirectToFosterParentGuard redirecter(m_tree); >- m_tree.reconstructTheActiveFormattingElements(); >- m_tree.insertTextNode(characters, NotAllWhitespace); >- m_framesetOk = false; >+ if (auto string = m_pendingTableCharacters.toString()) { >+ String characters = *string; >+ m_pendingTableCharacters.clear(); >+ if (!isAllWhitespace(characters)) { >+ // FIXME: parse error >+ HTMLConstructionSite::RedirectToFosterParentGuard redirecter(m_tree); >+ m_tree.reconstructTheActiveFormattingElements(); >+ m_tree.insertTextNode(characters, NotAllWhitespace); >+ m_framesetOk = false; >+ m_insertionMode = m_originalInsertionMode; >+ return; >+ } >+ m_tree.insertTextNode(characters); > m_insertionMode = m_originalInsertionMode; >- return; >- } >- m_tree.insertTextNode(characters); >- m_insertionMode = m_originalInsertionMode; >+ } else >+ CRASH(); > } > > bool HTMLTreeBuilder::processStartTagForInHead(AtomicHTMLToken&& token) >diff --git a/Source/WebCore/html/parser/XSSAuditorDelegate.cpp b/Source/WebCore/html/parser/XSSAuditorDelegate.cpp >index 80b4213..7d4c89b 100644 >--- a/Source/WebCore/html/parser/XSSAuditorDelegate.cpp >+++ b/Source/WebCore/html/parser/XSSAuditorDelegate.cpp >@@ -66,7 +66,9 @@ static inline String buildConsoleError(const XSSInfo& xssInfo) > else > message.appendLiteral(" The auditor was enabled because the server did not send an 'X-XSS-Protection' header."); > >- return message.toString(); >+ if (auto string = message.toString()) >+ return *string; >+ CRASH(); > } > > Ref<FormData> XSSAuditorDelegate::generateViolationReport(const XSSInfo& xssInfo) >diff --git a/Source/WebCore/html/track/BufferedLineReader.cpp b/Source/WebCore/html/track/BufferedLineReader.cpp >index 8f23625..f2908d5 100644 >--- a/Source/WebCore/html/track/BufferedLineReader.cpp >+++ b/Source/WebCore/html/track/BufferedLineReader.cpp >@@ -92,9 +92,11 @@ std::optional<String> BufferedLineReader::nextLine() > } > > if (shouldReturnLine) { >- auto line = m_lineBuffer.toString(); >- m_lineBuffer.clear(); >- return WTFMove(line); >+ if (auto line = m_lineBuffer.toString()) { >+ m_lineBuffer.clear(); >+ return WTFMove(*line); >+ } >+ CRASH(); > } > > ASSERT(m_buffer.isEmpty()); >diff --git a/Source/WebCore/html/track/TrackBase.cpp b/Source/WebCore/html/track/TrackBase.cpp >index 333a2f8..29416a2 100644 >--- a/Source/WebCore/html/track/TrackBase.cpp >+++ b/Source/WebCore/html/track/TrackBase.cpp >@@ -153,7 +153,10 @@ void TrackBase::setLanguage(const AtomicString& language) > stringBuilder.appendLiteral("The language '"); > stringBuilder.append(language); > stringBuilder.appendLiteral("' is not a valid BCP 47 language tag."); >- message = stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ message = *string; >+ else >+ CRASH(); > } > if (auto element = this->element()) > element->document().addConsoleMessage(MessageSource::Rendering, MessageLevel::Warning, message); >diff --git a/Source/WebCore/html/track/VTTCue.cpp b/Source/WebCore/html/track/VTTCue.cpp >index 78f8adf..3bbc246 100644 >--- a/Source/WebCore/html/track/VTTCue.cpp >+++ b/Source/WebCore/html/track/VTTCue.cpp >@@ -629,7 +629,11 @@ void VTTCue::determineTextDirection() > paragraphBuilder.append(node->nodeValue()); > } > >- String paragraph = paragraphBuilder.toString(); >+ String paragraph = [&] () { >+ if (auto string = paragraphBuilder.toString()) >+ return *string; >+ CRASH(); >+ }(); > if (!paragraph.length()) > return; > >diff --git a/Source/WebCore/html/track/WebVTTParser.cpp b/Source/WebCore/html/track/WebVTTParser.cpp >index 518ed8b..80d02c4 100644 >--- a/Source/WebCore/html/track/WebVTTParser.cpp >+++ b/Source/WebCore/html/track/WebVTTParser.cpp >@@ -404,7 +404,10 @@ void WebVTTParser::createNewCue() > RefPtr<WebVTTCueData> cue = WebVTTCueData::create(); > cue->setStartTime(m_currentStartTime); > cue->setEndTime(m_currentEndTime); >- cue->setContent(m_currentContent.toString()); >+ if (auto string = m_currentContent.toString()) >+ cue->setContent(*string); >+ else >+ CRASH(); > cue->setId(m_currentId); > cue->setSettings(m_currentSettings); > >diff --git a/Source/WebCore/html/track/WebVTTTokenizer.cpp b/Source/WebCore/html/track/WebVTTTokenizer.cpp >index 024c04a..fe3dda8 100644 >--- a/Source/WebCore/html/track/WebVTTTokenizer.cpp >+++ b/Source/WebCore/html/track/WebVTTTokenizer.cpp >@@ -108,11 +108,15 @@ DataState: > else { > // We don't want to advance input or perform a state transition - just return a (new) token. > // (On the next call to nextToken we will see '<' again, but take the other branch in this if instead.) >- return emitToken(token, WebVTTToken::StringToken(result.toString())); >+ if (auto string = result.toString()) >+ return emitToken(token, WebVTTToken::StringToken(*string)); >+ CRASH(); > } >- } else if (character == kEndOfFileMarker) >- return advanceAndEmitToken(m_input, token, WebVTTToken::StringToken(result.toString())); >- else { >+ } else if (character == kEndOfFileMarker) { >+ if (auto string = result.toString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::StringToken(*string)); >+ CRASH(); >+ } else { > result.append(character); > WEBVTT_ADVANCE_TO(DataState); > } >@@ -142,10 +146,14 @@ EscapeState: > WEBVTT_ADVANCE_TO(EscapeState); > } else if (character == '<') { > result.append(buffer); >- return emitToken(token, WebVTTToken::StringToken(result.toString())); >+ if (auto string = result.toString()) >+ return emitToken(token, WebVTTToken::StringToken(*string)); >+ CRASH(); > } else if (character == kEndOfFileMarker) { > result.append(buffer); >- return advanceAndEmitToken(m_input, token, WebVTTToken::StringToken(result.toString())); >+ if (auto string = result.toString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::StringToken(*string)); >+ CRASH(); > } else { > result.append(buffer); > buffer.clear(); >@@ -172,7 +180,9 @@ TagState: > WEBVTT_ADVANCE_TO(TimestampTagState); > } else if (character == '>' || character == kEndOfFileMarker) { > ASSERT(result.isEmpty()); >- return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(result.toString())); >+ if (auto string = result.toString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(*string)); >+ CRASH(); > } else { > result.append(character); > WEBVTT_ADVANCE_TO(StartTagState); >@@ -183,9 +193,11 @@ StartTagState: > WEBVTT_ADVANCE_TO(StartTagAnnotationState); > else if (character == '.') > WEBVTT_ADVANCE_TO(StartTagClassState); >- else if (character == '>' || character == kEndOfFileMarker) >- return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(result.toString())); >- else { >+ else if (character == '>' || character == kEndOfFileMarker) { >+ if (auto string = result.toString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(*string)); >+ CRASH(); >+ } else { > result.append(character); > WEBVTT_ADVANCE_TO(StartTagState); > } >@@ -202,27 +214,44 @@ StartTagClassState: > } else if (character == '>' || character == kEndOfFileMarker) { > addNewClass(classes, buffer); > buffer.clear(); >- return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(result.toString(), classes.toAtomicString())); >+ if (auto resultString = result.toString()) { >+ if (auto classesString = classes.toAtomicString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(*resultString, *classesString)); >+ } >+ CRASH(); > } else { > buffer.append(character); > WEBVTT_ADVANCE_TO(StartTagClassState); > } > > StartTagAnnotationState: >- if (character == '>' || character == kEndOfFileMarker) >- return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(result.toString(), classes.toAtomicString(), buffer.toAtomicString())); >+ if (character == '>' || character == kEndOfFileMarker) { >+ if (auto resultString = result.toString()) { >+ if (auto classesString = classes.toAtomicString()) { >+ if (auto bufferString = buffer.toAtomicString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::StartTag(*resultString, *classesString, *bufferString)); >+ } >+ } >+ CRASH(); >+ } > buffer.append(character); > WEBVTT_ADVANCE_TO(StartTagAnnotationState); > > EndTagState: >- if (character == '>' || character == kEndOfFileMarker) >- return advanceAndEmitToken(m_input, token, WebVTTToken::EndTag(result.toString())); >+ if (character == '>' || character == kEndOfFileMarker) { >+ if (auto string = result.toString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::EndTag(*string)); >+ CRASH(); >+ } > result.append(character); > WEBVTT_ADVANCE_TO(EndTagState); > > TimestampTagState: >- if (character == '>' || character == kEndOfFileMarker) >- return advanceAndEmitToken(m_input, token, WebVTTToken::TimestampTag(result.toString())); >+ if (character == '>' || character == kEndOfFileMarker) { >+ if (auto string = result.toString()) >+ return advanceAndEmitToken(m_input, token, WebVTTToken::TimestampTag(*string)); >+ CRASH(); >+ } > result.append(character); > WEBVTT_ADVANCE_TO(TimestampTagState); > } >diff --git a/Source/WebCore/inspector/InspectorStyleSheet.cpp b/Source/WebCore/inspector/InspectorStyleSheet.cpp >index 9d98581..651d2e8 100644 >--- a/Source/WebCore/inspector/InspectorStyleSheet.cpp >+++ b/Source/WebCore/inspector/InspectorStyleSheet.cpp >@@ -771,7 +771,9 @@ String InspectorStyle::shorthandValue(const String& shorthandProperty) const > builder.append(' '); > builder.append(individualValue); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String InspectorStyle::shorthandPriority(const String& shorthandProperty) const >@@ -943,13 +945,20 @@ ExceptionOr<CSSStyleRule*> InspectorStyleSheet::addRule(const String& selector) > styleSheetText.appendLiteral(" {}"); > > // Using setText() as this operation changes the stylesheet rule set. >- setText(styleSheetText.toString()); >+ if (auto string = styleSheetText.toString()) >+ setText(*string); >+ else >+ CRASH(); > > // Inspector Style Sheets are always treated as though their parsed data is ready. > if (m_origin == Inspector::Protocol::CSS::StyleSheetOrigin::Inspector) > fireStyleSheetChanged(); >- else >- reparseStyleSheet(styleSheetText.toString()); >+ else { >+ if (auto string = styleSheetText.toString()) >+ reparseStyleSheet(*string); >+ else >+ CRASH(); >+ } > > ASSERT(m_pageStyleSheet->length()); > unsigned lastRuleIndex = m_pageStyleSheet->length() - 1; >diff --git a/Source/WebCore/inspector/agents/InspectorApplicationCacheAgent.cpp b/Source/WebCore/inspector/agents/InspectorApplicationCacheAgent.cpp >index 19af4e9..bf9b4fd 100644 >--- a/Source/WebCore/inspector/agents/InspectorApplicationCacheAgent.cpp >+++ b/Source/WebCore/inspector/agents/InspectorApplicationCacheAgent.cpp >@@ -172,11 +172,14 @@ Ref<Inspector::Protocol::ApplicationCache::ApplicationCacheResource> InspectorAp > if (resourceInfo.isExplicit) > types.appendLiteral("Explicit "); > >- return Inspector::Protocol::ApplicationCache::ApplicationCacheResource::create() >- .setUrl(resourceInfo.resource.string()) >- .setSize(static_cast<int>(resourceInfo.size)) >- .setType(types.toString()) >- .release(); >+ if (auto string = types.toString()) { >+ return Inspector::Protocol::ApplicationCache::ApplicationCacheResource::create() >+ .setUrl(resourceInfo.resource.string()) >+ .setSize(static_cast<int>(resourceInfo.size)) >+ .setType(*string) >+ .release(); >+ } >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/inspector/agents/InspectorNetworkAgent.cpp b/Source/WebCore/inspector/agents/InspectorNetworkAgent.cpp >index 46e4afe..af17045 100644 >--- a/Source/WebCore/inspector/agents/InspectorNetworkAgent.cpp >+++ b/Source/WebCore/inspector/agents/InspectorNetworkAgent.cpp >@@ -134,8 +134,11 @@ public: > if (m_decoder) > m_responseText.append(m_decoder->flush()); > >- m_callback->sendSuccess(m_responseText.toString(), m_mimeType, m_statusCode); >- dispose(); >+ if (auto string = m_responseText.toString()) { >+ m_callback->sendSuccess(*string, m_mimeType, m_statusCode); >+ dispose(); >+ } else >+ CRASH(); > } > > void didFail(const ResourceError& error) override >diff --git a/Source/WebCore/inspector/agents/WebConsoleAgent.cpp b/Source/WebCore/inspector/agents/WebConsoleAgent.cpp >index dc96486..63838ad 100644 >--- a/Source/WebCore/inspector/agents/WebConsoleAgent.cpp >+++ b/Source/WebCore/inspector/agents/WebConsoleAgent.cpp >@@ -169,7 +169,10 @@ void WebConsoleAgent::didFailLoading(unsigned long requestIdentifier, const Reso > message.append(error.localizedDescription()); > } > >- addMessageToConsole(std::make_unique<ConsoleMessage>(MessageSource::Network, MessageType::Log, MessageLevel::Error, message.toString(), error.failingURL(), 0, 0, nullptr, requestIdentifier)); >+ if (auto string = message.toString()) >+ addMessageToConsole(std::make_unique<ConsoleMessage>(MessageSource::Network, MessageType::Log, MessageLevel::Error, *string, error.failingURL(), 0, 0, nullptr, requestIdentifier)); >+ else >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/loader/CrossOriginAccessControl.cpp b/Source/WebCore/loader/CrossOriginAccessControl.cpp >index 68804f2..f88a45d 100644 >--- a/Source/WebCore/loader/CrossOriginAccessControl.cpp >+++ b/Source/WebCore/loader/CrossOriginAccessControl.cpp >@@ -112,8 +112,12 @@ ResourceRequest createAccessControlPreflightRequest(const ResourceRequest& reque > > headerBuffer.append(headerField); > } >- if (!headerBuffer.isEmpty()) >- preflightRequest.setHTTPHeaderField(HTTPHeaderName::AccessControlRequestHeaders, headerBuffer.toString()); >+ if (!headerBuffer.isEmpty()) { >+ if (auto string = headerBuffer.toString()) >+ preflightRequest.setHTTPHeaderField(HTTPHeaderName::AccessControlRequestHeaders, *string); >+ else >+ CRASH(); >+ } > } > > return preflightRequest; >diff --git a/Source/WebCore/loader/ResourceLoadStatistics.cpp b/Source/WebCore/loader/ResourceLoadStatistics.cpp >index 4df25da..986fe51 100644 >--- a/Source/WebCore/loader/ResourceLoadStatistics.cpp >+++ b/Source/WebCore/loader/ResourceLoadStatistics.cpp >@@ -268,7 +268,9 @@ String ResourceLoadStatistics::toString() const > > builder.append('\n'); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > template <typename T> >diff --git a/Source/WebCore/loader/appcache/ApplicationCacheStorage.cpp b/Source/WebCore/loader/appcache/ApplicationCacheStorage.cpp >index ff29389..4f22d49 100644 >--- a/Source/WebCore/loader/appcache/ApplicationCacheStorage.cpp >+++ b/Source/WebCore/loader/appcache/ApplicationCacheStorage.cpp >@@ -841,17 +841,20 @@ bool ApplicationCacheStorage::store(ApplicationCacheResource* resource, unsigned > > // Then, insert the resource > >- // Serialize the headers >- StringBuilder stringBuilder; >- >- for (const auto& header : resource->response().httpHeaderFields()) { >- stringBuilder.append(header.key); >- stringBuilder.append(':'); >- stringBuilder.append(header.value); >- stringBuilder.append('\n'); >- } >- >- String headers = stringBuilder.toString(); >+ String headers = [&] () { >+ // Serialize the headers >+ StringBuilder stringBuilder; >+ >+ for (const auto& header : resource->response().httpHeaderFields()) { >+ stringBuilder.append(header.key); >+ stringBuilder.append(':'); >+ stringBuilder.append(header.value); >+ stringBuilder.append('\n'); >+ } >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); >+ }(); > > SQLiteStatement resourceStatement(m_database, "INSERT INTO CacheResources (url, statusCode, responseURL, headers, data, mimeType, textEncodingName) VALUES (?, ?, ?, ?, ?, ?, ?)"); > if (resourceStatement.prepare() != SQLITE_OK) >diff --git a/Source/WebCore/loader/archive/cf/LegacyWebArchive.cpp b/Source/WebCore/loader/archive/cf/LegacyWebArchive.cpp >index 12a30cc..cfe73863d 100644 >--- a/Source/WebCore/loader/archive/cf/LegacyWebArchive.cpp >+++ b/Source/WebCore/loader/archive/cf/LegacyWebArchive.cpp >@@ -557,21 +557,24 @@ RefPtr<LegacyWebArchive> LegacyWebArchive::createFromSelection(Frame* frame) > if (auto selectionRange = frame->selection().toNormalizedRange()) > builder.append(createMarkup(*selectionRange, &nodeList, AnnotateForInterchange)); > >- auto archive = create(builder.toString(), *frame, nodeList, nullptr); >+ if (auto string = builder.toString()) { >+ auto archive = create(*string, *frame, nodeList, nullptr); > >- if (!document->isFrameSet()) >- return archive; >+ if (!document->isFrameSet()) >+ return archive; > >- // Wrap the frameset document in an iframe so it can be pasted into >- // another document (which will have a body or frameset of its own). >- String iframeMarkup = "<iframe frameborder=\"no\" marginwidth=\"0\" marginheight=\"0\" width=\"98%%\" height=\"98%%\" src=\"" + frame->loader().documentLoader()->response().url().string() + "\"></iframe>"; >- auto iframeResource = ArchiveResource::create(utf8Buffer(iframeMarkup), blankURL(), "text/html", "UTF-8", String()); >+ // Wrap the frameset document in an iframe so it can be pasted into >+ // another document (which will have a body or frameset of its own). >+ String iframeMarkup = "<iframe frameborder=\"no\" marginwidth=\"0\" marginheight=\"0\" width=\"98%%\" height=\"98%%\" src=\"" + frame->loader().documentLoader()->response().url().string() + "\"></iframe>"; >+ auto iframeResource = ArchiveResource::create(utf8Buffer(iframeMarkup), blankURL(), "text/html", "UTF-8", String()); > >- Vector<Ref<LegacyWebArchive>> subframeArchives; >- subframeArchives.reserveInitialCapacity(1); >- subframeArchives.uncheckedAppend(archive.releaseNonNull()); >+ Vector<Ref<LegacyWebArchive>> subframeArchives; >+ subframeArchives.reserveInitialCapacity(1); >+ subframeArchives.uncheckedAppend(archive.releaseNonNull()); > >- return create(iframeResource.releaseNonNull(), { }, WTFMove(subframeArchives)); >+ return create(iframeResource.releaseNonNull(), { }, WTFMove(subframeArchives)); >+ } >+ CRASH(); > } > > } >diff --git a/Source/WebCore/loader/archive/mhtml/MHTMLArchive.cpp b/Source/WebCore/loader/archive/mhtml/MHTMLArchive.cpp >index 705c6dc..fd57f17 100644 >--- a/Source/WebCore/loader/archive/mhtml/MHTMLArchive.cpp >+++ b/Source/WebCore/loader/archive/mhtml/MHTMLArchive.cpp >@@ -76,7 +76,9 @@ static String generateRandomBoundary() > stringBuilder.append(lowerNibbleToASCIIHexDigit(randomValues[i])); > stringBuilder.append(upperNibbleToASCIIHexDigit(randomValues[i])); > } >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static String replaceNonPrintableCharacters(const String& text) >@@ -88,7 +90,9 @@ static String replaceNonPrintableCharacters(const String& text) > else > stringBuilder.append('?'); > } >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > MHTMLArchive::MHTMLArchive() >diff --git a/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp b/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp >index c139076..d83e254 100644 >--- a/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp >+++ b/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp >@@ -347,14 +347,18 @@ String CaptionUserPreferencesMediaAF::windowRoundedCornerRadiusCSS() const > > StringBuilder builder; > appendCSS(builder, CSSPropertyBorderRadius, String::format("%.02fpx", radius), behavior == kMACaptionAppearanceBehaviorUseValue); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String CaptionUserPreferencesMediaAF::colorPropertyCSS(CSSPropertyID id, const Color& color, bool important) const > { > StringBuilder builder; > appendCSS(builder, id, color.serialized(), important); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool CaptionUserPreferencesMediaAF::captionStrokeWidthForFont(float fontSize, const String& language, float& strokeWidth, bool& important) const >@@ -406,7 +410,9 @@ String CaptionUserPreferencesMediaAF::captionsTextEdgeCSS() const > appendCSS(builder, CSSPropertyStrokeLinecap, getValueName(CSSValueRound), important); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String CaptionUserPreferencesMediaAF::captionsDefaultFontCSS() const >@@ -448,7 +454,9 @@ String CaptionUserPreferencesMediaAF::captionsDefaultFontCSS() const > builder.appendLiteral(" !important"); > builder.append(';'); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > float CaptionUserPreferencesMediaAF::captionFontSizeScaleAndImportance(bool& important) const >@@ -595,9 +603,11 @@ String CaptionUserPreferencesMediaAF::captionsStyleSheetOverride() const > } > #endif // HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK) > >- LOG(Media, "CaptionUserPreferencesMediaAF::captionsStyleSheetOverrideSetting style to:\n%s", captionsOverrideStyleSheet.toString().utf8().data()); >- >- return captionsOverrideStyleSheet.toString(); >+ if (auto string = captionsOverrideStyleSheet.toString()) { >+ LOG(Media, "CaptionUserPreferencesMediaAF::captionsStyleSheetOverrideSetting style to:\n%s", string->utf8().data()); >+ return *string; >+ } >+ CRASH(); > } > > static String languageIdentifier(const String& languageCode) >@@ -664,10 +674,13 @@ static String trackDisplayName(AudioTrack* track) > if (displayName.isEmpty()) > displayName.append(audioTrackNoLabelText()); > >- if (track->kind() != AudioTrack::descriptionKeyword()) >- return displayName.toString(); >+ if (auto string = displayName.toString()) { >+ if (track->kind() != AudioTrack::descriptionKeyword()) >+ return *string; > >- return audioDescriptionTrackSuffixText(displayName.toString()); >+ return audioDescriptionTrackSuffixText(*string); >+ } >+ CRASH(); > } > > String CaptionUserPreferencesMediaAF::displayNameForTrack(AudioTrack* track) const >@@ -688,26 +701,29 @@ static String trackDisplayName(TextTrack* track) > if (displayNameBuilder.isEmpty()) > displayNameBuilder.append(textTrackNoLabelText()); > >- String displayName = displayNameBuilder.toString(); >+ if (auto string = displayNameBuilder.toString()) { >+ String displayName = *string; > >- if (track->isClosedCaptions()) { >- displayName = closedCaptionTrackMenuItemText(displayName); >- if (track->isEasyToRead()) >- displayName = easyReaderTrackMenuItemText(displayName); >+ if (track->isClosedCaptions()) { >+ displayName = closedCaptionTrackMenuItemText(displayName); >+ if (track->isEasyToRead()) >+ displayName = easyReaderTrackMenuItemText(displayName); > >- return displayName; >- } >+ return displayName; >+ } > >- if (track->isSDH()) >- displayName = sdhTrackMenuItemText(displayName); >+ if (track->isSDH()) >+ displayName = sdhTrackMenuItemText(displayName); > >- if (track->containsOnlyForcedSubtitles()) >- displayName = forcedTrackMenuItemText(displayName); >+ if (track->containsOnlyForcedSubtitles()) >+ displayName = forcedTrackMenuItemText(displayName); > >- if (track->isEasyToRead()) >- displayName = easyReaderTrackMenuItemText(displayName); >+ if (track->isEasyToRead()) >+ displayName = easyReaderTrackMenuItemText(displayName); > >- return displayName; >+ return displayName; >+ } >+ CRASH(); > } > > String CaptionUserPreferencesMediaAF::displayNameForTrack(TextTrack* track) const >diff --git a/Source/WebCore/page/Frame.cpp b/Source/WebCore/page/Frame.cpp >index a84265a..3e4246d 100644 >--- a/Source/WebCore/page/Frame.cpp >+++ b/Source/WebCore/page/Frame.cpp >@@ -369,7 +369,9 @@ static JSC::Yarr::RegularExpression createRegExpForLabels(const Vector<String>& > pattern.appendLiteral("\\b"); > } > pattern.append(')'); >- return JSC::Yarr::RegularExpression(pattern.toString(), JSC::Yarr::TextCaseInsensitive); >+ if (auto string = pattern.toString()) >+ return JSC::Yarr::RegularExpression(*string, JSC::Yarr::TextCaseInsensitive); >+ CRASH(); > } > > String Frame::searchForLabelsAboveCell(const JSC::Yarr::RegularExpression& regExp, HTMLTableCellElement* cell, size_t* resultDistanceFromStartOfCell) >diff --git a/Source/WebCore/page/FrameTree.cpp b/Source/WebCore/page/FrameTree.cpp >index 26ccc7a..4dcef07 100644 >--- a/Source/WebCore/page/FrameTree.cpp >+++ b/Source/WebCore/page/FrameTree.cpp >@@ -150,7 +150,9 @@ AtomicString FrameTree::uniqueChildName(const AtomicString& requestedName) const > name.appendNumber(childCount()); > name.appendLiteral("-->-->"); > >- return name.toAtomicString(); >+ if (auto string = name.toAtomicString()) >+ return *string; >+ CRASH(); > } > > static bool inScope(Frame& frame, TreeScope& scope) >diff --git a/Source/WebCore/page/FrameView.cpp b/Source/WebCore/page/FrameView.cpp >index ff3b8aa..2a360f8 100644 >--- a/Source/WebCore/page/FrameView.cpp >+++ b/Source/WebCore/page/FrameView.cpp >@@ -1452,7 +1452,10 @@ void FrameView::logMockScrollAnimatorMessage(const String& message) const > builder.appendLiteral("Main"); > builder.appendLiteral("FrameView: "); > builder.append(message); >- document->addConsoleMessage(MessageSource::Other, MessageLevel::Debug, builder.toString()); >+ if (auto string = builder.toString()) >+ document->addConsoleMessage(MessageSource::Other, MessageLevel::Debug, *string); >+ else >+ CRASH(); > } > > void FrameView::setCannotBlitToWindow() >diff --git a/Source/WebCore/page/PageSerializer.cpp b/Source/WebCore/page/PageSerializer.cpp >index 5f64224..9aa9f20 100644 >--- a/Source/WebCore/page/PageSerializer.cpp >+++ b/Source/WebCore/page/PageSerializer.cpp >@@ -263,8 +263,11 @@ void PageSerializer::serializeCSSStyleSheet(CSSStyleSheet* styleSheet, const URL > // FIXME: We should check whether a charset has been specified and if none was found add one. > TextEncoding textEncoding(styleSheet->contents().charset()); > ASSERT(textEncoding.isValid()); >- m_resources.append({ url, ASCIILiteral { "text/css" }, SharedBuffer::create(textEncoding.encode(cssText.toString(), UnencodableHandling::Entities)) }); >- m_resourceURLs.add(url); >+ if (auto string = cssText.toString()) { >+ m_resources.append({ url, ASCIILiteral { "text/css" }, SharedBuffer::create(textEncoding.encode(*string, UnencodableHandling::Entities)) }); >+ m_resourceURLs.add(url); >+ } else >+ CRASH(); > } > } > >diff --git a/Source/WebCore/page/PerformanceLoggingClient.cpp b/Source/WebCore/page/PerformanceLoggingClient.cpp >index 9d44d94..3b44ff5 100644 >--- a/Source/WebCore/page/PerformanceLoggingClient.cpp >+++ b/Source/WebCore/page/PerformanceLoggingClient.cpp >@@ -50,7 +50,9 @@ String PerformanceLoggingClient::synchronousScrollingReasonsAsString(Synchronous > reasons.appendLiteral("image document,"); > > // Strip the trailing comma. >- return reasons.toString().left(reasons.length() - 1); >+ if (auto string = reasons.toString()) >+ return string->left(reasons.length() - 1); >+ CRASH(); > } > > } // namespace WebCore >diff --git a/Source/WebCore/page/SecurityOriginData.cpp b/Source/WebCore/page/SecurityOriginData.cpp >index 2aac8ee..e3ac8d7 100644 >--- a/Source/WebCore/page/SecurityOriginData.cpp >+++ b/Source/WebCore/page/SecurityOriginData.cpp >@@ -84,7 +84,9 @@ String SecurityOriginData::databaseIdentifier() const > stringBuilder.append(separatorCharacter); > stringBuilder.appendNumber(port.value_or(0)); > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > std::optional<SecurityOriginData> SecurityOriginData::fromDatabaseIdentifier(const String& databaseIdentifier) >diff --git a/Source/WebCore/page/WheelEventTestTrigger.cpp b/Source/WebCore/page/WheelEventTestTrigger.cpp >index ed549cf..fc50252 100644 >--- a/Source/WebCore/page/WheelEventTestTrigger.cpp >+++ b/Source/WebCore/page/WheelEventTestTrigger.cpp >@@ -100,7 +100,10 @@ static void dumpState(WTF::HashMap<WheelEventTestTrigger::ScrollableAreaIdentifi > reasons.append(", "); > reasons.append(String::number(reason)); > } >- LOG(WheelEventTestTriggers, " Reasons: %s", reasons.toString().utf8().data()); >+ if (auto string = reasons.toString()) >+ LOG(WheelEventTestTriggers, " Reasons: %s", string->utf8().data()); >+ else >+ CRASH(); > } > } > #endif >diff --git a/Source/WebCore/page/csp/ContentSecurityPolicy.cpp b/Source/WebCore/page/csp/ContentSecurityPolicy.cpp >index fc2fd12..3c91872 100644 >--- a/Source/WebCore/page/csp/ContentSecurityPolicy.cpp >+++ b/Source/WebCore/page/csp/ContentSecurityPolicy.cpp >@@ -85,7 +85,9 @@ static String consoleMessageForViolation(const char* effectiveViolatedDirective, > result.append(effectiveViolatedDirective); > result.appendLiteral(" directive of the Content Security Policy."); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > ContentSecurityPolicy::ContentSecurityPolicy(ScriptExecutionContext& scriptExecutionContext) >@@ -137,7 +139,10 @@ bool ContentSecurityPolicy::allowRunningOrDisplayingInsecureContent(const URL& u > consoleMessage.append(url.stringCenterEllipsizedToLength()); > consoleMessage.appendLiteral(" because "); > consoleMessage.append("'block-all-mixed-content' appears in the Content Security Policy."); >- reportViolation(ContentSecurityPolicyDirectiveNames::blockAllMixedContent, ContentSecurityPolicyDirectiveNames::blockAllMixedContent, *policy, url, consoleMessage.toString()); >+ if (auto string = consoleMessage.toString()) >+ reportViolation(ContentSecurityPolicyDirectiveNames::blockAllMixedContent, ContentSecurityPolicyDirectiveNames::blockAllMixedContent, *policy, url, *string); >+ else >+ CRASH(); > > if (!isReportOnly) > allow = false; >diff --git a/Source/WebCore/page/scrolling/AxisScrollSnapOffsets.cpp b/Source/WebCore/page/scrolling/AxisScrollSnapOffsets.cpp >index 0207538..d8d3f28 100644 >--- a/Source/WebCore/page/scrolling/AxisScrollSnapOffsets.cpp >+++ b/Source/WebCore/page/scrolling/AxisScrollSnapOffsets.cpp >@@ -81,7 +81,9 @@ static String snapOffsetsToString(const Vector<LayoutUnit>& snapOffsets) > s.append(String::format("%.1f ", offset.toFloat())); > > s.append("]"); >- return s.toString(); >+ if (auto string = s.toString()) >+ return *string; >+ CRASH(); > } > > static String snapOffsetRangesToString(const Vector<ScrollOffsetRange<LayoutUnit>>& ranges) >@@ -91,7 +93,9 @@ static String snapOffsetRangesToString(const Vector<ScrollOffsetRange<LayoutUnit > for (auto range : ranges) > s.append(String::format("(%.1f, %.1f) ", range.start.toFloat(), range.end.toFloat())); > s.append("]"); >- return s.toString(); >+ if (auto string = s.toString()) >+ return *string; >+ CRASH(); > } > > static String snapPortOrAreaToString(const LayoutRect& rect) >diff --git a/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp b/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp >index f50221a..3c1c6e2 100644 >--- a/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp >+++ b/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp >@@ -389,7 +389,9 @@ String ScrollingCoordinator::synchronousScrollingReasonsAsText(SynchronousScroll > > if (stringBuilder.length()) > stringBuilder.resize(stringBuilder.length() - 2); >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > String ScrollingCoordinator::synchronousScrollingReasonsAsText() const >diff --git a/Source/WebCore/platform/Decimal.cpp b/Source/WebCore/platform/Decimal.cpp >index 3d525cf..1a192a5 100644 >--- a/Source/WebCore/platform/Decimal.cpp >+++ b/Source/WebCore/platform/Decimal.cpp >@@ -994,7 +994,9 @@ String Decimal::toString() const > if (originalExponent <= 0 && adjustedExponent >= -6) { > if (!originalExponent) { > builder.append(digits); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > if (adjustedExponent >= 0) { >@@ -1003,7 +1005,9 @@ String Decimal::toString() const > if (i == adjustedExponent) > builder.append('.'); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > builder.appendLiteral("0."); >@@ -1027,7 +1031,9 @@ String Decimal::toString() const > builder.appendNumber(adjustedExponent); > } > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > Decimal Decimal::zero(Sign sign) >diff --git a/Source/WebCore/platform/FileSystem.cpp b/Source/WebCore/platform/FileSystem.cpp >index 2fdb260..e67d679 100644 >--- a/Source/WebCore/platform/FileSystem.cpp >+++ b/Source/WebCore/platform/FileSystem.cpp >@@ -130,7 +130,9 @@ String encodeForFileName(const String& inputString) > result.append(character); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String decodeFromFilename(const String& inputString) >@@ -181,7 +183,9 @@ String decodeFromFilename(const String& inputString) > i += 5; > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > String lastComponentOfPathIgnoringTrailingSlash(const String& path) >diff --git a/Source/WebCore/platform/PODInterval.h b/Source/WebCore/platform/PODInterval.h >index 048da98..646362f 100644 >--- a/Source/WebCore/platform/PODInterval.h >+++ b/Source/WebCore/platform/PODInterval.h >@@ -145,7 +145,9 @@ public: > builder.appendLiteral(", maxHigh="); > builder.append(ValueToString<T>::string(maxHigh())); > builder.append(']'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/platform/PODRedBlackTree.h b/Source/WebCore/platform/PODRedBlackTree.h >index 131f31a..4960efd 100644 >--- a/Source/WebCore/platform/PODRedBlackTree.h >+++ b/Source/WebCore/platform/PODRedBlackTree.h >@@ -744,7 +744,10 @@ private: > builder.append(ValueToString<T>::string(node->data())); > builder.append((node->color() == Black) ? " (black)" : " (red)"); > } >- LOG_ERROR("%s", builder.toString().ascii().data()); >+ if (auto string = builder.toString()) >+ LOG_ERROR("%s", string->ascii().data()); >+ else >+ CRASH(); > if (node) { > dumpFromNode(node->left(), indentation + 2); > dumpFromNode(node->right(), indentation + 2); >diff --git a/Source/WebCore/platform/URL.cpp b/Source/WebCore/platform/URL.cpp >index 159e7fa..3db82d6 100644 >--- a/Source/WebCore/platform/URL.cpp >+++ b/Source/WebCore/platform/URL.cpp >@@ -455,8 +455,11 @@ void URL::setHost(const String& s) > builder.append(StringView(encodedHostName.data(), encodedHostName.size())); > builder.append(m_string.substring(m_hostEnd)); > >- URLParser parser(builder.toString()); >- *this = parser.result(); >+ if (auto string = builder.toString()) { >+ URLParser parser(*string); >+ *this = parser.result(); >+ } else >+ CRASH(); > } > > void URL::removePort() >@@ -517,8 +520,11 @@ void URL::setHostAndPort(const String& hostAndPort) > } > builder.append(m_string.substring(m_portEnd)); > >- URLParser parser(builder.toString()); >- *this = parser.result(); >+ if (auto string = builder.toString()) { >+ URLParser parser(*string); >+ *this = parser.result(); >+ } else >+ CRASH(); > } > > static String percentEncodeCharacters(const String& input, bool(*shouldEncode)(UChar)) >@@ -537,7 +543,9 @@ static String percentEncodeCharacters(const String& input, bool(*shouldEncode)(U > } else > builder.append(c); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > }; > > for (size_t i = 0; i < input.length(); ++i) { >diff --git a/Source/WebCore/platform/animation/TimingFunction.cpp b/Source/WebCore/platform/animation/TimingFunction.cpp >index 8c972d6..edbfed5 100644 >--- a/Source/WebCore/platform/animation/TimingFunction.cpp >+++ b/Source/WebCore/platform/animation/TimingFunction.cpp >@@ -129,7 +129,10 @@ ExceptionOr<RefPtr<TimingFunction>> TimingFunction::createFromCSSText(const Stri > cssString.appendLiteral(": "); > cssString.append(cssText); > auto styleProperties = MutableStyleProperties::create(); >- styleProperties->parseDeclaration(cssString.toString(), CSSParserContext(HTMLStandardMode)); >+ if (auto string = cssString.toString()) >+ styleProperties->parseDeclaration(*string, CSSParserContext(HTMLStandardMode)); >+ else >+ CRASH(); > > if (auto cssValue = styleProperties->getPropertyCSSValue(CSSPropertyAnimationTimingFunction)) { > if (auto timingFunction = createFromCSSValue(*cssValue.get())) >diff --git a/Source/WebCore/platform/glib/FileSystemGlib.cpp b/Source/WebCore/platform/glib/FileSystemGlib.cpp >index f940815..2b30b2f 100644 >--- a/Source/WebCore/platform/glib/FileSystemGlib.cpp >+++ b/Source/WebCore/platform/glib/FileSystemGlib.cpp >@@ -218,7 +218,9 @@ String pathByAppendingComponents(StringView path, const Vector<StringView>& comp > builder.append(G_DIR_SEPARATOR_S); > builder.append(component); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool makeAllDirectories(const String& path) >diff --git a/Source/WebCore/platform/graphics/Color.cpp b/Source/WebCore/platform/graphics/Color.cpp >index 5dd150f..ee1be74 100644 >--- a/Source/WebCore/platform/graphics/Color.cpp >+++ b/Source/WebCore/platform/graphics/Color.cpp >@@ -348,7 +348,9 @@ String Color::serialized() const > appendByteAsHex(red(), builder, Lowercase); > appendByteAsHex(green(), builder, Lowercase); > appendByteAsHex(blue(), builder, Lowercase); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > return cssText(); >@@ -384,7 +386,9 @@ String Color::cssText() const > } > > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String Color::nameForRenderTreeAsText() const >diff --git a/Source/WebCore/platform/graphics/ExtendedColor.cpp b/Source/WebCore/platform/graphics/ExtendedColor.cpp >index 50e3c5c..448dfd2 100644 >--- a/Source/WebCore/platform/graphics/ExtendedColor.cpp >+++ b/Source/WebCore/platform/graphics/ExtendedColor.cpp >@@ -72,7 +72,9 @@ String ExtendedColor::cssText() const > } > builder.append(')'); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/platform/graphics/FontCascade.cpp b/Source/WebCore/platform/graphics/FontCascade.cpp >index 847861f..5548293 100644 >--- a/Source/WebCore/platform/graphics/FontCascade.cpp >+++ b/Source/WebCore/platform/graphics/FontCascade.cpp >@@ -549,7 +549,9 @@ static inline String normalizeSpacesInternal(const CharacterType* characters, un > for (unsigned i = 0; i < length; ++i) > normalized.append(FontCascade::normalizeSpaces(characters[i])); > >- return normalized.toString(); >+ if (auto string = normalized.toString()) >+ return *string; >+ CRASH(); > } > > String FontCascade::normalizeSpaces(const LChar* characters, unsigned length) >diff --git a/Source/WebCore/platform/graphics/FontTaggedSettings.cpp b/Source/WebCore/platform/graphics/FontTaggedSettings.cpp >index 61b2ebe..5c46727 100644 >--- a/Source/WebCore/platform/graphics/FontTaggedSettings.cpp >+++ b/Source/WebCore/platform/graphics/FontTaggedSettings.cpp >@@ -72,7 +72,10 @@ TextStream& operator<<(TextStream& ts, const FontVariationSettings& item) > s.append(variation.tag()[1]); > s.append(variation.tag()[2]); > s.append(variation.tag()[3]); >- ts.dumpProperty(s.toString(), item.at(i).value()); >+ if (auto string = s.toString()) >+ ts.dumpProperty(*string, item.at(i).value()); >+ else >+ CRASH(); > } > return ts; > } >diff --git a/Source/WebCore/platform/graphics/GraphicsLayer.cpp b/Source/WebCore/platform/graphics/GraphicsLayer.cpp >index 698180e..15ce892 100644 >--- a/Source/WebCore/platform/graphics/GraphicsLayer.cpp >+++ b/Source/WebCore/platform/graphics/GraphicsLayer.cpp >@@ -441,7 +441,9 @@ String GraphicsLayer::animationNameForTransition(AnimatedPropertyID property) > id.appendLiteral("-|transition"); > id.appendNumber(static_cast<int>(property)); > id.append('-'); >- return id.toString(); >+ if (auto string = id.toString()) >+ return *string; >+ CRASH(); > } > > void GraphicsLayer::suspendAnimations(MonotonicTime) >diff --git a/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp b/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp >index 6f2b387..953c498 100644 >--- a/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp >+++ b/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp >@@ -300,8 +300,12 @@ void InbandTextTrackPrivateAVF::processCueAttributes(CFAttributedStringRef attri > content.append(tagEnd); > } > >- if (content.length()) >- cueData.setContent(content.toString()); >+ if (content.length()) { >+ if (auto string = content.toString()) >+ cueData.setContent(*string); >+ else >+ CRASH(); >+ } > } > > void InbandTextTrackPrivateAVF::processCue(CFArrayRef attributedStrings, CFArrayRef nativeSamples, const MediaTime& time) >@@ -530,7 +534,10 @@ void InbandTextTrackPrivateAVF::processNativeSamples(CFArrayRef nativeSamples, c > header.append("\n\n"); > > DEBUG_LOG(LOGIDENTIFIER, "VTT header ", &header); >- client()->parseWebVTTFileHeader(header.toString()); >+ if (auto string = header.toString()) >+ client()->parseWebVTTFileHeader(WTFMove(*string)); >+ else >+ CRASH(); > m_haveReportedVTTHeader = true; > } while (0); > >diff --git a/Source/WebCore/platform/graphics/ca/TileController.cpp b/Source/WebCore/platform/graphics/ca/TileController.cpp >index ec3ae4f..a37d845 100644 >--- a/Source/WebCore/platform/graphics/ca/TileController.cpp >+++ b/Source/WebCore/platform/graphics/ca/TileController.cpp >@@ -735,7 +735,10 @@ RefPtr<PlatformCALayer> TileController::createTileLayer(const IntRect& tileRect, > nameBuilder.appendNumber(tileRect.location().x()); > nameBuilder.append(','); > nameBuilder.appendNumber(tileRect.location().y()); >- layer->setName(nameBuilder.toString()); >+ if (auto string = nameBuilder.toString()) >+ layer->setName(*string); >+ else >+ CRASH(); > > float temporaryScaleFactor = owningGraphicsLayer()->platformCALayerContentsScaleMultiplierForNewTiles(m_tileCacheLayer); > m_hasTilesWithTemporaryScaleFactor |= temporaryScaleFactor != 1; >diff --git a/Source/WebCore/platform/graphics/ca/TileGrid.cpp b/Source/WebCore/platform/graphics/ca/TileGrid.cpp >index 5919f97..e866597 100644 >--- a/Source/WebCore/platform/graphics/ca/TileGrid.cpp >+++ b/Source/WebCore/platform/graphics/ca/TileGrid.cpp >@@ -59,7 +59,9 @@ static String validationPolicyAsString(TileGrid::TileValidationPolicy validation > } > builder.appendLiteral("]"); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/platform/graphics/ca/win/PlatformCALayerWin.cpp b/Source/WebCore/platform/graphics/ca/win/PlatformCALayerWin.cpp >index c000b43..fa640fa 100644 >--- a/Source/WebCore/platform/graphics/ca/win/PlatformCALayerWin.cpp >+++ b/Source/WebCore/platform/graphics/ca/win/PlatformCALayerWin.cpp >@@ -934,7 +934,9 @@ String PlatformCALayerWin::layerTreeAsString() const > // Print layer tree from the root > printLayer(builder, this, 0); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > Ref<PlatformCALayer> PlatformCALayerWin::createCompatibleLayer(PlatformCALayer::LayerType layerType, PlatformCALayerClient* client) const >diff --git a/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp b/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp >index dffcdcb..47f3232 100644 >--- a/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp >+++ b/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp >@@ -512,7 +512,10 @@ bool VideoTextureCopierCV::initializeContextObjects() > vertexShaderSource.appendLiteral("}\n"); > > Platform3DObject vertexShader = m_context->createShader(GraphicsContext3D::VERTEX_SHADER); >- m_context->shaderSource(vertexShader, vertexShaderSource.toString()); >+ if (auto string = vertexShaderSource.toString()) >+ m_context->shaderSource(vertexShader, *string); >+ else >+ CRASH(); > m_context->compileShaderDirect(vertexShader); > > GC3Dint value = 0; >@@ -553,7 +556,10 @@ bool VideoTextureCopierCV::initializeContextObjects() > fragmentShaderSource.appendLiteral("}\n"); > > Platform3DObject fragmentShader = m_context->createShader(GraphicsContext3D::FRAGMENT_SHADER); >- m_context->shaderSource(fragmentShader, fragmentShaderSource.toString()); >+ if (auto string = fragmentShaderSource.toString()) >+ m_context->shaderSource(fragmentShader, *string); >+ else >+ CRASH(); > m_context->compileShaderDirect(fragmentShader); > > m_context->getShaderiv(fragmentShader, GraphicsContext3D::COMPILE_STATUS, &value); >diff --git a/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp b/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp >index 5bdd663..025eccb 100644 >--- a/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp >+++ b/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp >@@ -953,7 +953,9 @@ static String generateHashedName(const String& name) > StringBuilder builder; > builder.appendLiteral("webgl_"); > appendUnsigned64AsHex(number, builder, Lowercase); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > std::optional<String> GraphicsContext3D::mappedSymbolInShaderSourceMap(Platform3DObject shader, ANGLEShaderSymbolType symbolType, const String& name) >@@ -1685,8 +1687,11 @@ String GraphicsContext3D::getUnmangledInfoLog(Platform3DObject shaders[2], GC3Ds > > processedLog.append(log.substring(startFrom, log.length() - startFrom)); > >- LOG(WebGL, "Unmangled ShaderInfoLog:\n%s", processedLog.toString().utf8().data()); >- return processedLog.toString(); >+ if (auto string = processedLog.toString()) { >+ LOG(WebGL, "Unmangled ShaderInfoLog:\n%s", string->utf8().data()); >+ return *string; >+ } >+ CRASH(); > } > > String GraphicsContext3D::getProgramInfoLog(Platform3DObject program) >diff --git a/Source/WebCore/platform/graphics/texmap/TextureMapperShaderProgram.cpp b/Source/WebCore/platform/graphics/texmap/TextureMapperShaderProgram.cpp >index 2e6c52c..24a88f0 100644 >--- a/Source/WebCore/platform/graphics/texmap/TextureMapperShaderProgram.cpp >+++ b/Source/WebCore/platform/graphics/texmap/TextureMapperShaderProgram.cpp >@@ -397,7 +397,10 @@ Ref<TextureMapperShaderProgram> TextureMapperShaderProgram::create(TextureMapper > #endif > > // Append the options. >- vertexShaderBuilder.append(optionsApplierBuilder.toString()); >+ if (auto string = optionsApplierBuilder.toString()) >+ vertexShaderBuilder.append(*string); >+ else >+ CRASH(); > > // Append the appropriate input/output variable definitions. > #if USE(OPENGL_ES) >@@ -421,7 +424,10 @@ Ref<TextureMapperShaderProgram> TextureMapperShaderProgram::create(TextureMapper > #endif > > // Append the options. >- fragmentShaderBuilder.append(optionsApplierBuilder.toString()); >+ if (auto string = optionsApplierBuilder.toString()) >+ fragmentShaderBuilder.append(*string); >+ else >+ CRASH(); > > // Append the common header. > fragmentShaderBuilder.append(fragmentTemplateHeaderCommon); >@@ -439,7 +445,10 @@ Ref<TextureMapperShaderProgram> TextureMapperShaderProgram::create(TextureMapper > // Append the common code. > fragmentShaderBuilder.append(fragmentTemplateCommon); > >- return adoptRef(*new TextureMapperShaderProgram(vertexShaderBuilder.toString(), fragmentShaderBuilder.toString())); >+ if (auto vertexString = vertexShaderBuilder.toString()) >+ if (auto fragmentString = fragmentShaderBuilder.toString()) >+ return adoptRef(*new TextureMapperShaderProgram(*vertexString, *fragmentString)); >+ CRASH(); > } > > #if !LOG_DISABLED >diff --git a/Source/WebCore/platform/mac/PasteboardMac.mm b/Source/WebCore/platform/mac/PasteboardMac.mm >index 3658dd1..a12cb30 100644 >--- a/Source/WebCore/platform/mac/PasteboardMac.mm >+++ b/Source/WebCore/platform/mac/PasteboardMac.mm >@@ -288,7 +288,9 @@ static String joinPathnames(const Vector<String>& pathnames) > builder.append('\n'); > builder.append(path); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > void Pasteboard::read(PasteboardPlainText& text) >diff --git a/Source/WebCore/platform/mac/StringUtilities.mm b/Source/WebCore/platform/mac/StringUtilities.mm >index 7cd1bd8..9f38fb8 100644 >--- a/Source/WebCore/platform/mac/StringUtilities.mm >+++ b/Source/WebCore/platform/mac/StringUtilities.mm >@@ -50,8 +50,10 @@ static String wildcardRegexPatternString(const String& string) > stringBuilder.append(character); > } > stringBuilder.append('$'); >- >- return stringBuilder.toString(); >+ >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > bool stringMatchesWildcardString(const String& string, const String& wildcardString) >diff --git a/Source/WebCore/platform/mock/ScrollAnimatorMock.cpp b/Source/WebCore/platform/mock/ScrollAnimatorMock.cpp >index 3cc0fe9..31bd3d8 100644 >--- a/Source/WebCore/platform/mock/ScrollAnimatorMock.cpp >+++ b/Source/WebCore/platform/mock/ScrollAnimatorMock.cpp >@@ -101,7 +101,10 @@ void ScrollAnimatorMock::mouseEnteredScrollbar(Scrollbar* scrollbar) const > else > message.appendLiteral("Unknown"); > message.appendLiteral("Scrollbar"); >- m_logger(message.toString()); >+ if (auto string = message.toString()) >+ m_logger(*string); >+ else >+ CRASH(); > ScrollAnimator::mouseEnteredScrollbar(scrollbar); > } > >@@ -116,7 +119,10 @@ void ScrollAnimatorMock::mouseExitedScrollbar(Scrollbar* scrollbar) const > else > message.appendLiteral("Unknown"); > message.appendLiteral("Scrollbar"); >- m_logger(message.toString()); >+ if (auto string = message.toString()) >+ m_logger(*string); >+ else >+ CRASH(); > ScrollAnimator::mouseExitedScrollbar(scrollbar); > } > >@@ -136,7 +142,10 @@ void ScrollAnimatorMock::mouseIsDownInScrollbar(Scrollbar* scrollbar, bool isPre > else > message.appendLiteral("Unknown"); > message.appendLiteral("Scrollbar"); >- m_logger(message.toString()); >+ if (auto string = message.toString()) >+ m_logger(*string); >+ else >+ CRASH(); > ScrollAnimator::mouseIsDownInScrollbar(scrollbar, isPressed); > } > >diff --git a/Source/WebCore/platform/mock/mediasource/MockBox.cpp b/Source/WebCore/platform/mock/mediasource/MockBox.cpp >index d4aa205..fb65a9e 100644 >--- a/Source/WebCore/platform/mock/mediasource/MockBox.cpp >+++ b/Source/WebCore/platform/mock/mediasource/MockBox.cpp >@@ -52,7 +52,9 @@ String MockBox::peekType(ArrayBuffer* data) > RefPtr<Int8Array> array = JSC::Int8Array::create(data, 0, 4); > for (int i = 0; i < 4; ++i) > builder.append(array->item(i)); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > size_t MockBox::peekLength(ArrayBuffer* data) >@@ -73,7 +75,10 @@ MockTrackBox::MockTrackBox(ArrayBuffer* data) > RefPtr<Int8Array> array = JSC::Int8Array::create(data, 12, 4); > for (int i = 0; i < 4; ++i) > builder.append(array->item(i)); >- m_codec = builder.toString(); >+ if (auto string = builder.toString()) >+ m_codec = *string; >+ else >+ CRASH(); > > m_kind = static_cast<TrackKind>(view->get<uint8_t>(16, true)); > } >diff --git a/Source/WebCore/platform/network/HTTPParsers.cpp b/Source/WebCore/platform/network/HTTPParsers.cpp >index c8f45e5..8d30d87 100644 >--- a/Source/WebCore/platform/network/HTTPParsers.cpp >+++ b/Source/WebCore/platform/network/HTTPParsers.cpp >@@ -328,7 +328,9 @@ String extractMIMETypeFromMediaType(const String& mediaType) > > if (mimeType.length() == length) > return mediaType; >- return mimeType.toString(); >+ if (auto string = mimeType.toString()) >+ return *string; >+ CRASH(); > } > > String extractCharsetFromMediaType(const String& mediaType) >diff --git a/Source/WebCore/platform/network/ProxyServer.cpp b/Source/WebCore/platform/network/ProxyServer.cpp >index c6d67c2..0c69f4d 100644 >--- a/Source/WebCore/platform/network/ProxyServer.cpp >+++ b/Source/WebCore/platform/network/ProxyServer.cpp >@@ -68,7 +68,9 @@ String toString(const Vector<ProxyServer>& proxyServers) > appendProxyServerString(stringBuilder, proxyServers[i]); > } > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > >diff --git a/Source/WebCore/platform/network/mac/CookieJarMac.mm b/Source/WebCore/platform/network/mac/CookieJarMac.mm >index c2640bd..0005dfa 100644 >--- a/Source/WebCore/platform/network/mac/CookieJarMac.mm >+++ b/Source/WebCore/platform/network/mac/CookieJarMac.mm >@@ -261,7 +261,10 @@ static std::pair<String, bool> cookiesForSession(const NetworkStorageSession& se > cookiesBuilder.append('='); > cookiesBuilder.append([cookie value]); > } >- return { cookiesBuilder.toString(), didAccessSecureCookies }; >+ >+ if (auto string = cookiesBuilder.toString()) >+ return { *string, didAccessSecureCookies }; >+ CRASH(); > > END_BLOCK_OBJC_EXCEPTIONS; > return { String(), false }; >diff --git a/Source/WebCore/platform/posix/FileSystemPOSIX.cpp b/Source/WebCore/platform/posix/FileSystemPOSIX.cpp >index 4da7cf6..389d2dc 100644 >--- a/Source/WebCore/platform/posix/FileSystemPOSIX.cpp >+++ b/Source/WebCore/platform/posix/FileSystemPOSIX.cpp >@@ -310,7 +310,9 @@ String pathByAppendingComponents(StringView path, const Vector<StringView>& comp > builder.append('/'); > builder.append(component); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool makeAllDirectories(const String& path) >diff --git a/Source/WebCore/platform/text/DecodeEscapeSequences.h b/Source/WebCore/platform/text/DecodeEscapeSequences.h >index 14cf415..72a0a5a 100644 >--- a/Source/WebCore/platform/text/DecodeEscapeSequences.h >+++ b/Source/WebCore/platform/text/DecodeEscapeSequences.h >@@ -64,7 +64,9 @@ struct Unicode16BitEscapeSequence { > builder.append(codeUnit); > run = run.substring(sequenceSize); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > }; > >@@ -151,7 +153,9 @@ String decodeEscapeSequences(StringView string, const TextEncoding& encoding) > decodedPosition = encodedRunEnd; > } > result.append(string.substring(decodedPosition, length - decodedPosition)); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > inline Vector<uint8_t> decodeURLEscapeSequencesAsData(StringView string, const TextEncoding& encoding) >diff --git a/Source/WebCore/platform/text/PlatformLocale.cpp b/Source/WebCore/platform/text/PlatformLocale.cpp >index 0874325..dc0808c 100644 >--- a/Source/WebCore/platform/text/PlatformLocale.cpp >+++ b/Source/WebCore/platform/text/PlatformLocale.cpp >@@ -238,7 +238,9 @@ String Locale::convertToLocalizedNumber(const String& input) > > builder.append(isNegative ? m_negativeSuffix : m_positiveSuffix); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > static bool matches(const String& text, unsigned position, const String& part) >@@ -321,7 +323,9 @@ String Locale::convertFromLocalizedNumber(const String& localized) > else > builder.append(static_cast<UChar>('0' + symbolIndex)); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > #if ENABLE(DATE_AND_TIME_INPUT_TYPES) >@@ -360,7 +364,9 @@ String Locale::formatDateTime(const DateComponents& date, FormatType formatType) > ASSERT_NOT_REACHED(); > break; > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif // !PLATFORM(IOS) > >diff --git a/Source/WebCore/platform/text/SegmentedString.cpp b/Source/WebCore/platform/text/SegmentedString.cpp >index ff31b2a..48cba0e 100644 >--- a/Source/WebCore/platform/text/SegmentedString.cpp >+++ b/Source/WebCore/platform/text/SegmentedString.cpp >@@ -159,7 +159,9 @@ String SegmentedString::toString() const > m_currentSubstring.appendTo(result); > for (auto& substring : m_otherSubstrings) > substring.appendTo(result); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void SegmentedString::advanceWithoutUpdatingLineNumber16() >diff --git a/Source/WebCore/platform/text/TextCodecICU.cpp b/Source/WebCore/platform/text/TextCodecICU.cpp >index d2e2ae7..7622cb1 100644 >--- a/Source/WebCore/platform/text/TextCodecICU.cpp >+++ b/Source/WebCore/platform/text/TextCodecICU.cpp >@@ -318,13 +318,14 @@ String TextCodecICU::decode(const char* bytes, size_t length, bool flush, bool s > sawError = true; > } > >- String resultString = result.toString(); >+ if (auto resultString = result.toString()) { >+ // Simplified Chinese pages use the code A3A0 to mean "full-width space", but ICU decodes it as U+E5E5. >+ if (!strcmp(m_encodingName, "GBK") || equalLettersIgnoringASCIICase(m_encodingName, "gb18030")) >+ resultString->replace(0xE5E5, ideographicSpace); > >- // Simplified Chinese pages use the code A3A0 to mean "full-width space", but ICU decodes it as U+E5E5. >- if (!strcmp(m_encodingName, "GBK") || equalLettersIgnoringASCIICase(m_encodingName, "gb18030")) >- resultString.replace(0xE5E5, ideographicSpace); >- >- return resultString; >+ return *resultString; >+ } >+ CRASH(); > } > > // We need to apply these fallbacks ourselves as they are not currently supported by ICU and >diff --git a/Source/WebCore/platform/text/TextCodecUserDefined.cpp b/Source/WebCore/platform/text/TextCodecUserDefined.cpp >index 296c469..cb70e49 100644 >--- a/Source/WebCore/platform/text/TextCodecUserDefined.cpp >+++ b/Source/WebCore/platform/text/TextCodecUserDefined.cpp >@@ -53,7 +53,9 @@ String TextCodecUserDefined::decode(const char* bytes, size_t length, bool, bool > signed char c = bytes[i]; > result.append(static_cast<UChar>(c & 0xF7FF)); > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > static Vector<uint8_t> encodeComplexUserDefined(StringView string, UnencodableHandling handling) >diff --git a/Source/WebCore/platform/win/ClipboardUtilitiesWin.cpp b/Source/WebCore/platform/win/ClipboardUtilitiesWin.cpp >index 6ff89ec..2bc6d5f 100644 >--- a/Source/WebCore/platform/win/ClipboardUtilitiesWin.cpp >+++ b/Source/WebCore/platform/win/ClipboardUtilitiesWin.cpp >@@ -314,7 +314,10 @@ void replaceNewlinesWithWindowsStyleNewlines(String& str) > else > result.appendLiteral("\r\n"); > } >- str = result.toString(); >+ if (auto string = result.toString()) >+ str = *string; >+ else >+ CRASH(); > } > > void replaceNBSPWithSpace(String& str) >diff --git a/Source/WebCore/platform/win/UserAgentWin.cpp b/Source/WebCore/platform/win/UserAgentWin.cpp >index 8201f4e..d3d694d 100644 >--- a/Source/WebCore/platform/win/UserAgentWin.cpp >+++ b/Source/WebCore/platform/win/UserAgentWin.cpp >@@ -46,7 +46,9 @@ String standardUserAgent(const String& applicationName, const String& applicatio > uaString.append(applicationVersion); > } > } >- return uaString.toString(); >+ if (auto string = uaString.toString()) >+ return *string; >+ CRASH(); > } > > String standardUserAgentForURL(const URL& url) >diff --git a/Source/WebCore/plugins/DOMMimeType.cpp b/Source/WebCore/plugins/DOMMimeType.cpp >index 1b2d752..2fe5862 100644 >--- a/Source/WebCore/plugins/DOMMimeType.cpp >+++ b/Source/WebCore/plugins/DOMMimeType.cpp >@@ -57,7 +57,9 @@ String DOMMimeType::suffixes() const > builder.append(','); > builder.append(extensions[i]); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > String DOMMimeType::description() const >diff --git a/Source/WebCore/rendering/RenderLayer.cpp b/Source/WebCore/rendering/RenderLayer.cpp >index fa0e57a..ba9cd62 100644 >--- a/Source/WebCore/rendering/RenderLayer.cpp >+++ b/Source/WebCore/rendering/RenderLayer.cpp >@@ -428,7 +428,9 @@ String RenderLayer::name() const > if (isReflection()) > name.appendLiteral(" (reflection)"); > >- return name.toString(); >+ if (auto string = name.toString()) >+ return *string; >+ CRASH(); > } > > RenderLayerCompositor& RenderLayer::compositor() const >diff --git a/Source/WebCore/rendering/RenderLayerCompositor.cpp b/Source/WebCore/rendering/RenderLayerCompositor.cpp >index 1c4047d..57330e8 100644 >--- a/Source/WebCore/rendering/RenderLayerCompositor.cpp >+++ b/Source/WebCore/rendering/RenderLayerCompositor.cpp >@@ -863,7 +863,10 @@ void RenderLayerCompositor::logLayerInfo(const RenderLayer& layer, int depth) > > logString.append(layer.name()); > >- LOG(Compositing, "%s", logString.toString().utf8().data()); >+ if (auto string = logString.toString()) >+ LOG(Compositing, "%s", string->utf8().data()); >+ else >+ CRASH(); > } > #endif > >diff --git a/Source/WebCore/rendering/RenderListMarker.cpp b/Source/WebCore/rendering/RenderListMarker.cpp >index 904f994..57b0032 100644 >--- a/Source/WebCore/rendering/RenderListMarker.cpp >+++ b/Source/WebCore/rendering/RenderListMarker.cpp >@@ -1117,7 +1117,9 @@ String listMarkerText(EListStyleType type, int value) > break; > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > RenderListMarker::RenderListMarker(RenderListItem& listItem, RenderStyle&& style) >@@ -1363,7 +1365,10 @@ void RenderListMarker::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffse > buffer.append(suffix); > buffer.append(space); > } >- toDraw = buffer.toString(); >+ if (auto string = buffer.toString()) >+ toDraw = *string; >+ else >+ CRASH(); > } else { > if (style().isLeftToRightDirection()) > toDraw = m_text + String(&suffix, 1) + String(&space, 1); >diff --git a/Source/WebCore/rendering/RenderText.cpp b/Source/WebCore/rendering/RenderText.cpp >index 8fa51e2..10520fc 100644 >--- a/Source/WebCore/rendering/RenderText.cpp >+++ b/Source/WebCore/rendering/RenderText.cpp >@@ -181,7 +181,9 @@ String capitalize(const String& string, UChar previousCharacter) > result.append(stringImpl[i - 1]); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > inline RenderText::RenderText(Node& node, const String& text) >@@ -756,16 +758,19 @@ static float maxWordFragmentWidth(RenderText& renderer, const RenderStyle& style > fragmentWithHyphen.append(word.substring(suffixStart, fragmentLength)); > fragmentWithHyphen.append(style.hyphenString()); > >- TextRun run = RenderBlock::constructTextRun(fragmentWithHyphen.toString(), style); >- run.setCharacterScanForCodePath(!renderer.canUseSimpleFontCodePath()); >- float fragmentWidth = font.width(run, &fallbackFonts, &glyphOverflow); >+ if (auto string = fragmentWithHyphen.toString()) { >+ TextRun run = RenderBlock::constructTextRun(*string, style); >+ run.setCharacterScanForCodePath(!renderer.canUseSimpleFontCodePath()); >+ float fragmentWidth = font.width(run, &fallbackFonts, &glyphOverflow); > >- // Narrow prefixes are ignored. See tryHyphenating in RenderBlockLineLayout.cpp. >- if (fragmentWidth <= minimumFragmentWidthToConsider) >- continue; >+ // Narrow prefixes are ignored. See tryHyphenating in RenderBlockLineLayout.cpp. >+ if (fragmentWidth <= minimumFragmentWidthToConsider) >+ continue; > >- suffixStart += fragmentLength; >- maxFragmentWidth = std::max(maxFragmentWidth, fragmentWidth); >+ suffixStart += fragmentLength; >+ maxFragmentWidth = std::max(maxFragmentWidth, fragmentWidth); >+ } else >+ CRASH(); > } > > return maxFragmentWidth; >diff --git a/Source/WebCore/rendering/RenderThemeIOS.mm b/Source/WebCore/rendering/RenderThemeIOS.mm >index 4fe83e0..2578f50 100644 >--- a/Source/WebCore/rendering/RenderThemeIOS.mm >+++ b/Source/WebCore/rendering/RenderThemeIOS.mm >@@ -1360,7 +1360,10 @@ String RenderThemeIOS::mediaControlsScript() > StringBuilder scriptBuilder; > scriptBuilder.append([NSString stringWithContentsOfFile:[bundle pathForResource:@"modern-media-controls-localized-strings" ofType:@"js"] encoding:NSUTF8StringEncoding error:nil]); > scriptBuilder.append([NSString stringWithContentsOfFile:[bundle pathForResource:@"modern-media-controls" ofType:@"js" inDirectory:@"modern-media-controls"] encoding:NSUTF8StringEncoding error:nil]); >- m_mediaControlsScript = scriptBuilder.toString(); >+ if (auto string = scriptBuilder.toString()) >+ m_mediaControlsScript = *string; >+ else >+ CRASH(); > } > return m_mediaControlsScript; > } >@@ -1373,7 +1376,10 @@ String RenderThemeIOS::mediaControlsScript() > scriptBuilder.append([NSString stringWithContentsOfFile:[bundle pathForResource:@"mediaControlsApple" ofType:@"js"] encoding:NSUTF8StringEncoding error:nil]); > scriptBuilder.append([NSString stringWithContentsOfFile:[bundle pathForResource:@"mediaControlsiOS" ofType:@"js"] encoding:NSUTF8StringEncoding error:nil]); > >- m_legacyMediaControlsScript = scriptBuilder.toString(); >+ if (auto string = scriptBuilder.toString()) >+ m_legacyMediaControlsScript = *string; >+ else >+ CRASH(); > } > return m_legacyMediaControlsScript; > #else >diff --git a/Source/WebCore/rendering/RenderThemeWin.cpp b/Source/WebCore/rendering/RenderThemeWin.cpp >index deea1a9..836d01c 100644 >--- a/Source/WebCore/rendering/RenderThemeWin.cpp >+++ b/Source/WebCore/rendering/RenderThemeWin.cpp >@@ -1094,7 +1094,10 @@ String RenderThemeWin::mediaControlsScript() > StringBuilder scriptBuilder; > scriptBuilder.append(stringWithContentsOfFile(CFSTR("mediaControlsLocalizedStrings"), CFSTR("js"))); > scriptBuilder.append(stringWithContentsOfFile(CFSTR("mediaControlsApple"), CFSTR("js"))); >- m_mediaControlsScript = scriptBuilder.toString(); >+ if (auto string = scriptBuilder.toString()) >+ m_mediaControlsScript = *string; >+ else >+ CRASH(); > } > return m_mediaControlsScript; > #else >diff --git a/Source/WebCore/rendering/RenderTreeAsText.cpp b/Source/WebCore/rendering/RenderTreeAsText.cpp >index 55cdb4b..85c78e4 100644 >--- a/Source/WebCore/rendering/RenderTreeAsText.cpp >+++ b/Source/WebCore/rendering/RenderTreeAsText.cpp >@@ -170,7 +170,9 @@ String quoteAndEscapeNonPrintables(StringView s) > } > } > result.append('"'); >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void RenderTreeAsText::writeRenderObject(TextStream& ts, const RenderObject& o, RenderAsTextBehavior behavior) >@@ -807,7 +809,9 @@ static String nodePosition(Node* node) > result.appendLiteral("document"); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > static void writeSelection(TextStream& ts, const RenderBox& renderer) >diff --git a/Source/WebCore/rendering/mathml/RenderMathMLFenced.cpp b/Source/WebCore/rendering/mathml/RenderMathMLFenced.cpp >index 89bb040..8c784e6 100644 >--- a/Source/WebCore/rendering/mathml/RenderMathMLFenced.cpp >+++ b/Source/WebCore/rendering/mathml/RenderMathMLFenced.cpp >@@ -71,7 +71,10 @@ void RenderMathMLFenced::updateFromElement() > if (!isSpaceOrNewline(separators[i])) > characters.append(separators[i]); > } >- m_separators = !characters.length() ? 0 : characters.toString().impl(); >+ if (auto string = characters.toString()) >+ m_separators = !characters.length() ? 0 : string->impl(); >+ else >+ CRASH(); > } else { > // The separator defaults to a single comma. > m_separators = StringImpl::create(","); >diff --git a/Source/WebCore/rendering/updating/RenderTreeBuilderMathML.cpp b/Source/WebCore/rendering/updating/RenderTreeBuilderMathML.cpp >index 5cb478b..20d2514 100644 >--- a/Source/WebCore/rendering/updating/RenderTreeBuilderMathML.cpp >+++ b/Source/WebCore/rendering/updating/RenderTreeBuilderMathML.cpp >@@ -90,7 +90,10 @@ void RenderTreeBuilder::MathML::attach(RenderMathMLFenced& parent, RenderPtr<Ren > > StringBuilder stringBuilder; > stringBuilder.append(separator); >- separatorRenderer = createMathMLOperator(parent, stringBuilder.toString(), MathMLOperatorDictionary::Infix, MathMLOperatorDictionary::Separator); >+ if (auto string = stringBuilder.toString()) >+ separatorRenderer = createMathMLOperator(parent, *string, MathMLOperatorDictionary::Infix, MathMLOperatorDictionary::Separator); >+ else >+ CRASH(); > } > } > >diff --git a/Source/WebCore/svg/SVGLengthListValues.cpp b/Source/WebCore/svg/SVGLengthListValues.cpp >index ba20648..20ea3e1 100644 >--- a/Source/WebCore/svg/SVGLengthListValues.cpp >+++ b/Source/WebCore/svg/SVGLengthListValues.cpp >@@ -63,7 +63,9 @@ String SVGLengthListValues::valueAsString() const > builder.append(at(i).valueAsString()); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/svg/SVGNumberListValues.cpp b/Source/WebCore/svg/SVGNumberListValues.cpp >index 6dfd993..875be43 100644 >--- a/Source/WebCore/svg/SVGNumberListValues.cpp >+++ b/Source/WebCore/svg/SVGNumberListValues.cpp >@@ -55,7 +55,9 @@ String SVGNumberListValues::valueAsString() const > builder.appendNumber(at(i)); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/svg/SVGPathStringBuilder.cpp b/Source/WebCore/svg/SVGPathStringBuilder.cpp >index 105391c..9c577ec 100644 >--- a/Source/WebCore/svg/SVGPathStringBuilder.cpp >+++ b/Source/WebCore/svg/SVGPathStringBuilder.cpp >@@ -37,7 +37,9 @@ String SVGPathStringBuilder::result() > > // Remove trailing space. > m_stringBuilder.resize(size - 1); >- return m_stringBuilder.toString(); >+ if (auto string = m_stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > void SVGPathStringBuilder::incrementPathSegmentCount() >diff --git a/Source/WebCore/svg/SVGPathUtilities.cpp b/Source/WebCore/svg/SVGPathUtilities.cpp >index cf9f014..cc54307 100644 >--- a/Source/WebCore/svg/SVGPathUtilities.cpp >+++ b/Source/WebCore/svg/SVGPathUtilities.cpp >@@ -101,7 +101,9 @@ String buildStringFromPath(const Path& path) > }); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool buildSVGPathByteStreamFromSVGPathSegListValues(const SVGPathSegListValues& list, SVGPathByteStream& result, PathParsingMode parsingMode) >diff --git a/Source/WebCore/svg/SVGPointListValues.cpp b/Source/WebCore/svg/SVGPointListValues.cpp >index d81e6a2..d8bdee5 100644 >--- a/Source/WebCore/svg/SVGPointListValues.cpp >+++ b/Source/WebCore/svg/SVGPointListValues.cpp >@@ -41,7 +41,9 @@ String SVGPointListValues::valueAsString() const > builder.appendNumber(point.y()); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/svg/SVGStringListValues.cpp b/Source/WebCore/svg/SVGStringListValues.cpp >index 3ff898a..8c61f17 100644 >--- a/Source/WebCore/svg/SVGStringListValues.cpp >+++ b/Source/WebCore/svg/SVGStringListValues.cpp >@@ -73,7 +73,9 @@ String SVGStringListValues::valueAsString() const > builder.append(at(i)); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } >diff --git a/Source/WebCore/svg/SVGTransformListValues.cpp b/Source/WebCore/svg/SVGTransformListValues.cpp >index 25b3c31..6b42d3b 100644 >--- a/Source/WebCore/svg/SVGTransformListValues.cpp >+++ b/Source/WebCore/svg/SVGTransformListValues.cpp >@@ -68,7 +68,9 @@ String SVGTransformListValues::valueAsString() const > builder.append(at(i).valueAsString()); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > void SVGTransformListValues::parse(const String& transform) >diff --git a/Source/WebCore/svg/SVGTransformValue.cpp b/Source/WebCore/svg/SVGTransformValue.cpp >index 63d45a5..ea1463d 100644 >--- a/Source/WebCore/svg/SVGTransformValue.cpp >+++ b/Source/WebCore/svg/SVGTransformValue.cpp >@@ -179,7 +179,9 @@ String SVGTransformValue::valueAsString() const > builder.append(' '); > builder.appendNumber(m_matrix.f()); > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > case SVG_TRANSFORM_TRANSLATE: { > StringBuilder builder; >@@ -188,7 +190,9 @@ String SVGTransformValue::valueAsString() const > builder.append(' '); > builder.appendNumber(m_matrix.f()); > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > case SVG_TRANSFORM_SCALE: { > StringBuilder builder; >@@ -197,7 +201,9 @@ String SVGTransformValue::valueAsString() const > builder.append(' '); > builder.appendNumber(m_matrix.yScale()); > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > case SVG_TRANSFORM_ROTATE: { > double angleInRad = deg2rad(m_angle); >@@ -215,7 +221,9 @@ String SVGTransformValue::valueAsString() const > builder.appendNumber(cy); > } > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > case SVG_TRANSFORM_SKEWX: > case SVG_TRANSFORM_SKEWY: { >@@ -223,7 +231,9 @@ String SVGTransformValue::valueAsString() const > builder.append(prefix); > builder.appendNumber(m_angle); > builder.append(')'); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > } > >diff --git a/Source/WebCore/svg/properties/SVGPropertyTraits.h b/Source/WebCore/svg/properties/SVGPropertyTraits.h >index a2327e6..800abd6 100644 >--- a/Source/WebCore/svg/properties/SVGPropertyTraits.h >+++ b/Source/WebCore/svg/properties/SVGPropertyTraits.h >@@ -143,7 +143,9 @@ struct SVGPropertyTraits<FloatPoint> { > builder.appendNumber(type.x()); > builder.append(' '); > builder.appendNumber(type.y()); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > }; > >@@ -174,7 +176,9 @@ struct SVGPropertyTraits<FloatRect> { > builder.appendNumber(type.width()); > builder.append(' '); > builder.appendNumber(type.height()); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > }; > >diff --git a/Source/WebCore/testing/Internals.cpp b/Source/WebCore/testing/Internals.cpp >index 81a4009..0c24047 100644 >--- a/Source/WebCore/testing/Internals.cpp >+++ b/Source/WebCore/testing/Internals.cpp >@@ -1540,7 +1540,9 @@ ExceptionOr<String> Internals::dumpMarkerRects(const String& markerTypeString) > rectString.appendNumber(rect.height()); > rectString.appendLiteral(") "); > } >- return rectString.toString(); >+ if (auto string = rectString.toString()) >+ return WTFMove(*string); >+ CRASH(); > } > > void Internals::addTextMatchMarker(const Range& range, bool isActive) >@@ -2079,7 +2081,9 @@ String Internals::parserMetaData(JSC::JSValue code) > result.appendNumber(endColumn); > result.appendLiteral(" }"); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > void Internals::updateEditorUINowIfScheduled() >@@ -3071,7 +3075,9 @@ ExceptionOr<String> Internals::getCurrentCursorInfo() > result.append(numberToFixedPrecisionString(cursor.imageScaleFactor(), 8, buffer, true)); > } > #endif >- return result.toString(); >+ if (auto string = result.toString()) >+ return WTFMove(*string); >+ CRASH(); > #else > return String { "FAIL: Cursor details not available on this platform." }; > #endif >@@ -3514,7 +3520,9 @@ ExceptionOr<String> Internals::mediaSessionRestrictions(const String& mediaTypeS > builder.append(','); > builder.append("interruptedplaybacknotpermitted"); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return WTFMove(*string); >+ CRASH(); > } > > void Internals::setMediaElementRestrictions(HTMLMediaElement& element, StringView restrictionsString) >@@ -3755,48 +3763,50 @@ String Internals::pageMediaState() > return emptyString(); > > WebCore::MediaProducer::MediaStateFlags state = document->page()->mediaState(); >- StringBuilder string; >+ StringBuilder builder; > if (state & MediaProducer::IsPlayingAudio) >- string.append("IsPlayingAudio,"); >+ builder.append("IsPlayingAudio,"); > if (state & MediaProducer::IsPlayingVideo) >- string.append("IsPlayingVideo,"); >+ builder.append("IsPlayingVideo,"); > if (state & MediaProducer::IsPlayingToExternalDevice) >- string.append("IsPlayingToExternalDevice,"); >+ builder.append("IsPlayingToExternalDevice,"); > if (state & MediaProducer::RequiresPlaybackTargetMonitoring) >- string.append("RequiresPlaybackTargetMonitoring,"); >+ builder.append("RequiresPlaybackTargetMonitoring,"); > if (state & MediaProducer::ExternalDeviceAutoPlayCandidate) >- string.append("ExternalDeviceAutoPlayCandidate,"); >+ builder.append("ExternalDeviceAutoPlayCandidate,"); > if (state & MediaProducer::DidPlayToEnd) >- string.append("DidPlayToEnd,"); >+ builder.append("DidPlayToEnd,"); > if (state & MediaProducer::IsSourceElementPlaying) >- string.append("IsSourceElementPlaying,"); >+ builder.append("IsSourceElementPlaying,"); > > if (state & MediaProducer::IsNextTrackControlEnabled) >- string.append("IsNextTrackControlEnabled,"); >+ builder.append("IsNextTrackControlEnabled,"); > if (state & MediaProducer::IsPreviousTrackControlEnabled) >- string.append("IsPreviousTrackControlEnabled,"); >+ builder.append("IsPreviousTrackControlEnabled,"); > > if (state & MediaProducer::HasPlaybackTargetAvailabilityListener) >- string.append("HasPlaybackTargetAvailabilityListener,"); >+ builder.append("HasPlaybackTargetAvailabilityListener,"); > if (state & MediaProducer::HasAudioOrVideo) >- string.append("HasAudioOrVideo,"); >+ builder.append("HasAudioOrVideo,"); > if (state & MediaProducer::HasActiveAudioCaptureDevice) >- string.append("HasActiveAudioCaptureDevice,"); >+ builder.append("HasActiveAudioCaptureDevice,"); > if (state & MediaProducer::HasActiveVideoCaptureDevice) >- string.append("HasActiveVideoCaptureDevice,"); >+ builder.append("HasActiveVideoCaptureDevice,"); > if (state & MediaProducer::HasMutedAudioCaptureDevice) >- string.append("HasMutedAudioCaptureDevice,"); >+ builder.append("HasMutedAudioCaptureDevice,"); > if (state & MediaProducer::HasMutedVideoCaptureDevice) >- string.append("HasMutedVideoCaptureDevice,"); >+ builder.append("HasMutedVideoCaptureDevice,"); > if (state & MediaProducer::HasUserInteractedWithMediaElement) >- string.append("HasUserInteractedWithMediaElement,"); >+ builder.append("HasUserInteractedWithMediaElement,"); > >- if (string.isEmpty()) >- string.append("IsNotPlaying"); >+ if (builder.isEmpty()) >+ builder.append("IsNotPlaying"); > else >- string.resize(string.length() - 1); >+ builder.resize(builder.length() - 1); > >- return string.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > void Internals::setPageDefersLoading(bool defersLoading) >@@ -3918,7 +3928,9 @@ ExceptionOr<String> Internals::scrollSnapOffsets(Element& element) > } > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return WTFMove(*string); >+ CRASH(); > } > > #endif >diff --git a/Source/WebCore/testing/MockPageOverlayClient.cpp b/Source/WebCore/testing/MockPageOverlayClient.cpp >index e5a6cfe..f4a3ce7 100644 >--- a/Source/WebCore/testing/MockPageOverlayClient.cpp >+++ b/Source/WebCore/testing/MockPageOverlayClient.cpp >@@ -98,7 +98,10 @@ void MockPageOverlayClient::drawRect(PageOverlay& overlay, GraphicsContext& cont > message.appendLiteral(", "); > message.appendNumber(dirtyRect.height()); > message.appendLiteral(")"); >- overlay.page()->mainFrame().document()->addConsoleMessage(MessageSource::Other, MessageLevel::Debug, message.toString()); >+ if (auto string = message.toString()) >+ overlay.page()->mainFrame().document()->addConsoleMessage(MessageSource::Other, MessageLevel::Debug, *string); >+ else >+ CRASH(); > > GraphicsContextStateSaver stateSaver(context); > >@@ -123,7 +126,10 @@ bool MockPageOverlayClient::mouseEvent(PageOverlay& overlay, const PlatformMouse > message.appendLiteral(", "); > message.appendNumber(event.position().y()); > message.appendLiteral(")"); >- overlay.page()->mainFrame().document()->addConsoleMessage(MessageSource::Other, MessageLevel::Debug, message.toString()); >+ if (auto string = message.toString()) >+ overlay.page()->mainFrame().document()->addConsoleMessage(MessageSource::Other, MessageLevel::Debug, *string); >+ else >+ CRASH(); > > return false; > } >diff --git a/Source/WebCore/workers/WorkerScriptLoader.cpp b/Source/WebCore/workers/WorkerScriptLoader.cpp >index 5b340ff..44e4e25 100644 >--- a/Source/WebCore/workers/WorkerScriptLoader.cpp >+++ b/Source/WebCore/workers/WorkerScriptLoader.cpp >@@ -202,7 +202,9 @@ void WorkerScriptLoader::notifyError() > > String WorkerScriptLoader::script() > { >- return m_script.toString(); >+ if (auto string = m_script.toString()) >+ return *string; >+ CRASH(); > } > > void WorkerScriptLoader::notifyFinished() >diff --git a/Source/WebCore/xml/XMLErrors.cpp b/Source/WebCore/xml/XMLErrors.cpp >index b1432d1..15319f5 100644 >--- a/Source/WebCore/xml/XMLErrors.cpp >+++ b/Source/WebCore/xml/XMLErrors.cpp >@@ -148,8 +148,11 @@ void XMLErrors::insertErrorMessageBlock() > documentElement = WTFMove(body); > } > >- String errorMessages = m_errorMessages.toString(); >- auto reportElement = createXHTMLParserErrorHeader(m_document, errorMessages); >+ auto reportElement = createXHTMLParserErrorHeader(m_document, [&] () { >+ if (auto string = m_errorMessages.toString()) >+ return *string; >+ CRASH(); >+ }()); > > #if ENABLE(XSLT) > if (m_document.transformSourceDocument()) { >diff --git a/Source/WebCore/xml/XMLHttpRequest.cpp b/Source/WebCore/xml/XMLHttpRequest.cpp >index 19e5ae4..76b9fd7 100644 >--- a/Source/WebCore/xml/XMLHttpRequest.cpp >+++ b/Source/WebCore/xml/XMLHttpRequest.cpp >@@ -195,7 +195,10 @@ ExceptionOr<Document*> XMLHttpRequest::responseXML() > else > m_responseDocument = XMLDocument::create(0, m_url); > // FIXME: Set Last-Modified. >- m_responseDocument->setContent(m_responseBuilder.toStringPreserveCapacity()); >+ if (auto string = m_responseBuilder.toStringPreserveCapacity()) >+ m_responseDocument->setContent(*string); >+ else >+ CRASH(); > m_responseDocument->setContextDocument(downcast<Document>(*scriptExecutionContext())); > m_responseDocument->setSecurityOriginPolicy(scriptExecutionContext()->securityOriginPolicy()); > m_responseDocument->overrideMIMEType(mimeType); >@@ -817,14 +820,20 @@ String XMLHttpRequest::getAllResponseHeaders() const > stringBuilder.appendLiteral(": "); > stringBuilder.append(header.value); > stringBuilder.appendLiteral("\r\n"); >- headers.uncheckedAppend(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ headers.uncheckedAppend(*string); >+ else >+ CRASH(); > } > std::sort(headers.begin(), headers.end(), WTF::codePointCompareLessThan); > > StringBuilder stringBuilder; > for (auto& header : headers) > stringBuilder.append(header); >- m_allResponseHeaders = stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ m_allResponseHeaders = *string; >+ else >+ CRASH(); > } > > return m_allResponseHeaders; >diff --git a/Source/WebCore/xml/XMLHttpRequest.h b/Source/WebCore/xml/XMLHttpRequest.h >index 1eec158..53b4f87 100644 >--- a/Source/WebCore/xml/XMLHttpRequest.h >+++ b/Source/WebCore/xml/XMLHttpRequest.h >@@ -87,7 +87,12 @@ public: > String getAllResponseHeaders() const; > String getResponseHeader(const String& name) const; > ExceptionOr<OwnedString> responseText(); >- String responseTextIgnoringResponseType() const { return m_responseBuilder.toStringPreserveCapacity(); } >+ String responseTextIgnoringResponseType() const >+ { >+ if (auto string = m_responseBuilder.toStringPreserveCapacity()) >+ return *string; >+ CRASH(); >+ } > String responseMIMEType() const; > > Document* optionalResponseXML() const { return m_responseDocument.get(); } >diff --git a/Source/WebCore/xml/XPathFunctions.cpp b/Source/WebCore/xml/XPathFunctions.cpp >index 73534a4..f7dca9aa 100644 >--- a/Source/WebCore/xml/XPathFunctions.cpp >+++ b/Source/WebCore/xml/XPathFunctions.cpp >@@ -308,9 +308,11 @@ static AtomicString atomicSubstring(StringBuilder& builder, unsigned start, unsi > { > ASSERT(start <= builder.length()); > ASSERT(length <= builder.length() - start); >+ if (builder.failed()) >+ CRASH(); > if (builder.is8Bit()) >- return AtomicString(builder.characters8() + start, length); >- return AtomicString(builder.characters16() + start, length); >+ return AtomicString(*builder.characters8() + start, length); >+ return AtomicString(*builder.characters16() + start, length); > } > > Value FunId::evaluate() const >@@ -334,14 +336,17 @@ Value FunId::evaluate() const > unsigned startPos = 0; > unsigned length = idList.length(); > while (true) { >- while (startPos < length && isWhitespace(idList[startPos])) >+ if (idList.failed()) >+ CRASH(); >+ >+ while (startPos < length && isWhitespace(*idList[startPos])) > ++startPos; > > if (startPos == length) > break; > > size_t endPos = startPos; >- while (endPos < length && !isWhitespace(idList[endPos])) >+ while (endPos < length && !isWhitespace(*idList[endPos])) > ++endPos; > > // If there are several nodes with the same id, id() should return the first one. >@@ -437,7 +442,9 @@ Value FunConcat::evaluate() const > result.append(str); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > Value FunStartsWith::evaluate() const >@@ -556,7 +563,9 @@ Value FunTranslate::evaluate() const > result.append(s3[i2]); > } > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > Value FunBoolean::evaluate() const >diff --git a/Source/WebCore/xml/XSLTProcessorLibxslt.cpp b/Source/WebCore/xml/XSLTProcessorLibxslt.cpp >index 66ad15f..8e5e05e 100644 >--- a/Source/WebCore/xml/XSLTProcessorLibxslt.cpp >+++ b/Source/WebCore/xml/XSLTProcessorLibxslt.cpp >@@ -197,12 +197,18 @@ static bool saveResultToString(xmlDocPtr resultDoc, xsltStylesheetPtr sheet, Str > return false; > > // Workaround for <http://bugzilla.gnome.org/show_bug.cgi?id=495668>: libxslt appends an extra line feed to the result. >- if (resultBuilder.length() > 0 && resultBuilder[resultBuilder.length() - 1] == '\n') >+ if (resultBuilder.length() > 0) { >+ if (resultBuilder.failed()) >+ CRASH(); >+ if (*resultBuilder[resultBuilder.length() - 1] == '\n') > resultBuilder.resize(resultBuilder.length() - 1); >+ } > >- resultString = resultBuilder.toString(); >- >- return true; >+ if (auto string = resultBuilder.toString()) { >+ resultString = *string; >+ return true; >+ } >+ CRASH(); > } > > static const char** xsltParamArrayFromParameterMap(XSLTProcessor::ParameterMap& parameters) >diff --git a/Source/WebCore/xml/parser/CharacterReferenceParserInlines.h b/Source/WebCore/xml/parser/CharacterReferenceParserInlines.h >index 7686268..672bae0 100644 >--- a/Source/WebCore/xml/parser/CharacterReferenceParserInlines.h >+++ b/Source/WebCore/xml/parser/CharacterReferenceParserInlines.h >@@ -32,7 +32,10 @@ namespace WebCore { > > inline void unconsumeCharacters(SegmentedString& source, StringBuilder& consumedCharacters) > { >- source.pushBack(consumedCharacters.toString()); >+ if (auto string = consumedCharacters.toString()) >+ source.pushBack(WTFMove(*string)); >+ else >+ CRASH(); > } > > template <typename ParserFunctions> >diff --git a/Source/WebDriver/SessionHost.cpp b/Source/WebDriver/SessionHost.cpp >index f164929..b1cccb3 100644 >--- a/Source/WebDriver/SessionHost.cpp >+++ b/Source/WebDriver/SessionHost.cpp >@@ -55,7 +55,10 @@ long SessionHost::sendCommandToBackend(const String& command, RefPtr<JSON::Objec > messageBuilder.append(parameters->toJSONString()); > } > messageBuilder.append('}'); >- sendMessageToBackend(sequenceID, messageBuilder.toString()); >+ if (auto string = messageBuilder.toString()) >+ sendMessageToBackend(sequenceID, *string); >+ else >+ CRASH(); > > return sequenceID; > } >diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog >index 8a1dd17..88b96bf 100644 >--- a/Source/WebKit/ChangeLog >+++ b/Source/WebKit/ChangeLog >@@ -1,3 +1,52 @@ >+2018-04-26 JF Bastien <jfbastien@apple.com> >+ >+ StringBuilder is fallible >+ https://bugs.webkit.org/show_bug.cgi?id=185048 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ Teach StringBuilder that it is fallible >+ >+ * NetworkProcess/cache/CacheStorageEngine.cpp: >+ (WebKit::CacheStorage::Engine::representation): >+ * NetworkProcess/cache/NetworkCache.cpp: >+ (WebKit::NetworkCache::Cache::dumpContentsToFile): >+ * NetworkProcess/cache/NetworkCacheKey.cpp: >+ (WebKit::NetworkCache::Key::hashAsString): >+ * NetworkProcess/capture/NetworkCaptureManager.cpp: >+ (WebKit::NetworkCapture::Manager::hashToPath): >+ * Shared/Databases/IndexedDB/IDBUtilities.cpp: >+ (WebKit::uniqueDatabaseIdentifier): >+ * Shared/Gamepad/GamepadData.cpp: >+ (WebKit::GamepadData::loggingString const): >+ * Shared/Plugins/Netscape/unix/NetscapePluginModuleUnix.cpp: >+ (WebKit::NetscapePluginModule::buildMIMEDescription): >+ * Shared/WebMemorySampler.cpp: >+ (WebKit::WebMemorySampler::appendCurrentMemoryUsageToFile): >+ * UIProcess/API/APIUserScript.cpp: >+ (API::UserScript::generateUniqueURL): >+ * UIProcess/API/APIUserStyleSheet.cpp: >+ (API::UserStyleSheet::generateUniqueURL): >+ * UIProcess/Cocoa/ViewGestureController.cpp: >+ (WebKit::ViewGestureController::SnapshotRemovalTracker::eventsDescription): >+ * UIProcess/WebBackForwardList.cpp: >+ (WebKit::WebBackForwardList::loggingString): >+ * UIProcess/WebProcessPool.cpp: >+ (WebKit::WebProcessPool::didReceiveInvalidMessage): >+ * UIProcess/WebProcessProxy.cpp: >+ (WebKit::WebProcessProxy::getLaunchOptions): >+ * UIProcess/WebResourceLoadStatisticsStore.cpp: >+ (WebKit::WebResourceLoadStatisticsStore::removeDataRecords): >+ (WebKit::WebResourceLoadStatisticsStore::updateCookiePartitioning): >+ * UIProcess/WebResourceLoadStatisticsTelemetry.cpp: >+ (WebKit::submitTopList): >+ * WebProcess/Plugins/Netscape/NetscapeBrowserFuncs.cpp: >+ (WebKit::capitalizeRFC822HeaderFieldName): >+ * WebProcess/Plugins/PluginView.cpp: >+ (WebKit::buildHTTPHeaders): >+ * WebProcess/WebPage/WebFrame.cpp: >+ (WebKit::WebFrame::contentsAsString const): >+ > 2018-04-25 Saam Barati <sbarati@apple.com> > > dlopen the bundle's executable before calling -[NSBundle load] since that will also do a bunch of other things we don't need >diff --git a/Source/WebKit/NetworkProcess/cache/CacheStorageEngine.cpp b/Source/WebKit/NetworkProcess/cache/CacheStorageEngine.cpp >index 45c47a1..8d79583 100644 >--- a/Source/WebKit/NetworkProcess/cache/CacheStorageEngine.cpp >+++ b/Source/WebKit/NetworkProcess/cache/CacheStorageEngine.cpp >@@ -524,7 +524,9 @@ String Engine::representation() > builder.append("}"); > } > builder.append("]}"); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace CacheStorage >diff --git a/Source/WebKit/NetworkProcess/cache/NetworkCache.cpp b/Source/WebKit/NetworkProcess/cache/NetworkCache.cpp >index 73a25f4..0ca7f97 100644 >--- a/Source/WebKit/NetworkProcess/cache/NetworkCache.cpp >+++ b/Source/WebKit/NetworkProcess/cache/NetworkCache.cpp >@@ -570,10 +570,13 @@ void Cache::dumpContentsToFile() > epilogue.appendNumber(totals.count ? totals.worth / totals.count : 0); > epilogue.appendLiteral("\n"); > epilogue.appendLiteral("}\n}\n"); >- auto writeData = epilogue.toString().utf8(); >- writeToFile(fd, writeData.data(), writeData.length()); >- closeFile(fd); >- return; >+ if (auto string = epilogue.toString()) { >+ auto writeData = string->utf8(); >+ writeToFile(fd, writeData.data(), writeData.length()); >+ closeFile(fd); >+ return; >+ } >+ CRASH(); > } > auto entry = Entry::decodeStorageRecord(*record); > if (!entry) >@@ -585,8 +588,11 @@ void Cache::dumpContentsToFile() > StringBuilder json; > entry->asJSON(json, info); > json.appendLiteral(",\n"); >- auto writeData = json.toString().utf8(); >- writeToFile(fd, writeData.data(), writeData.length()); >+ if (auto string = json.toString()) { >+ auto writeData = string->utf8(); >+ writeToFile(fd, writeData.data(), writeData.length()); >+ } else >+ CRASH(); > }); > } > >diff --git a/Source/WebKit/NetworkProcess/cache/NetworkCacheKey.cpp b/Source/WebKit/NetworkProcess/cache/NetworkCacheKey.cpp >index 8fa81d1..0b422ef 100644 >--- a/Source/WebKit/NetworkProcess/cache/NetworkCacheKey.cpp >+++ b/Source/WebKit/NetworkProcess/cache/NetworkCacheKey.cpp >@@ -134,7 +134,9 @@ String Key::hashAsString(const HashType& hash) > builder.append(upperNibbleToASCIIHexDigit(byte)); > builder.append(lowerNibbleToASCIIHexDigit(byte)); > } >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > template <typename CharType> bool hexDigitsToHash(CharType* characters, Key::HashType& hash) >diff --git a/Source/WebKit/NetworkProcess/capture/NetworkCaptureManager.cpp b/Source/WebKit/NetworkProcess/capture/NetworkCaptureManager.cpp >index 5613be8..3473e5d 100644 >--- a/Source/WebKit/NetworkProcess/capture/NetworkCaptureManager.cpp >+++ b/Source/WebKit/NetworkProcess/capture/NetworkCaptureManager.cpp >@@ -415,9 +415,9 @@ String Manager::hashToPath(const String& hash) > > auto path = pathByAppendingComponent(m_recordReplayCacheLocation, kDirNameResources); > path = pathByAppendingComponent(path, hashHead); >- path = pathByAppendingComponent(path, fileName.toString()); >- >- return path; >+ if (auto string = fileName.toString()) >+ return pathByAppendingComponent(path, *string); >+ CRASH(); > } > > String Manager::urlIdentifyingCommonDomain(const WebCore::URL& url) >diff --git a/Source/WebKit/Shared/Databases/IndexedDB/IDBUtilities.cpp b/Source/WebKit/Shared/Databases/IndexedDB/IDBUtilities.cpp >index 9ec76ff..7c1c24e 100644 >--- a/Source/WebKit/Shared/Databases/IndexedDB/IDBUtilities.cpp >+++ b/Source/WebKit/Shared/Databases/IndexedDB/IDBUtilities.cpp >@@ -52,7 +52,9 @@ String uniqueDatabaseIdentifier(const String& databaseName, const WebCore::Secur > stringBuilder.append('_'); > stringBuilder.append(databaseName); > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > } // namespace WebKit >diff --git a/Source/WebKit/Shared/Gamepad/GamepadData.cpp b/Source/WebKit/Shared/Gamepad/GamepadData.cpp >index 905d827..1fbd7d1 100644 >--- a/Source/WebKit/Shared/Gamepad/GamepadData.cpp >+++ b/Source/WebKit/Shared/Gamepad/GamepadData.cpp >@@ -111,7 +111,9 @@ String GamepadData::loggingString() const > builder.appendNumber(m_buttonValues[i]); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > #endif > >diff --git a/Source/WebKit/Shared/Plugins/Netscape/unix/NetscapePluginModuleUnix.cpp b/Source/WebKit/Shared/Plugins/Netscape/unix/NetscapePluginModuleUnix.cpp >index f9eb06e..972dcb5 100644 >--- a/Source/WebKit/Shared/Plugins/Netscape/unix/NetscapePluginModuleUnix.cpp >+++ b/Source/WebKit/Shared/Plugins/Netscape/unix/NetscapePluginModuleUnix.cpp >@@ -120,7 +120,9 @@ String NetscapePluginModule::buildMIMEDescription(const Vector<MimeClassInfo>& m > builder.append(';'); > } > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > bool NetscapePluginModule::getPluginInfoForLoadedPlugin(RawPluginMetaData& metaData) >diff --git a/Source/WebKit/Shared/WebMemorySampler.cpp b/Source/WebKit/Shared/WebMemorySampler.cpp >index 9277189..6758ab2 100644 >--- a/Source/WebKit/Shared/WebMemorySampler.cpp >+++ b/Source/WebKit/Shared/WebMemorySampler.cpp >@@ -181,8 +181,11 @@ void WebMemorySampler::appendCurrentMemoryUsageToFile(FileSystem::PlatformFileHa > } > statString.append('\n'); > >- CString utf8String = statString.toString().utf8(); >- FileSystem::writeToFile(m_sampleLogFile, utf8String.data(), utf8String.length()); >+ if (auto string = statString.toString()) { >+ CString utf8String = string->utf8(); >+ FileSystem::writeToFile(m_sampleLogFile, utf8String.data(), utf8String.length()); >+ } else >+ CRASH(); > } > > } >diff --git a/Source/WebKit/UIProcess/API/APIUserScript.cpp b/Source/WebKit/UIProcess/API/APIUserScript.cpp >index 7584e63..a939b57 100644 >--- a/Source/WebKit/UIProcess/API/APIUserScript.cpp >+++ b/Source/WebKit/UIProcess/API/APIUserScript.cpp >@@ -37,7 +37,9 @@ WebCore::URL UserScript::generateUniqueURL() > StringBuilder urlStringBuilder; > urlStringBuilder.appendLiteral("user-script:"); > urlStringBuilder.appendNumber(++identifier); >- return { { }, urlStringBuilder.toString() }; >+ if (auto string = urlStringBuilder.toString()) >+ return { { }, *string }; >+ CRASH(); > } > > UserScript::UserScript(WebCore::UserScript userScript, API::UserContentWorld& world) >diff --git a/Source/WebKit/UIProcess/API/APIUserStyleSheet.cpp b/Source/WebKit/UIProcess/API/APIUserStyleSheet.cpp >index 1d595bb..63ac0f4 100644 >--- a/Source/WebKit/UIProcess/API/APIUserStyleSheet.cpp >+++ b/Source/WebKit/UIProcess/API/APIUserStyleSheet.cpp >@@ -37,7 +37,9 @@ WebCore::URL UserStyleSheet::generateUniqueURL() > StringBuilder urlStringBuilder; > urlStringBuilder.appendLiteral("user-style-sheet:"); > urlStringBuilder.appendNumber(++identifier); >- return { { }, urlStringBuilder.toString() }; >+ if (auto string = urlStringBuilder.toString()) >+ return { { }, *string }; >+ CRASH(); > } > > UserStyleSheet::UserStyleSheet(WebCore::UserStyleSheet userStyleSheet, API::UserContentWorld& world) >diff --git a/Source/WebKit/UIProcess/Cocoa/ViewGestureController.cpp b/Source/WebKit/UIProcess/Cocoa/ViewGestureController.cpp >index 8c21c24..916dd47 100644 >--- a/Source/WebKit/UIProcess/Cocoa/ViewGestureController.cpp >+++ b/Source/WebKit/UIProcess/Cocoa/ViewGestureController.cpp >@@ -232,8 +232,10 @@ String ViewGestureController::SnapshotRemovalTracker::eventsDescription(Events e > > if (event & ViewGestureController::SnapshotRemovalTracker::ScrollPositionRestoration) > description.append("ScrollPositionRestoration "); >- >- return description.toString(); >+ >+ if (auto string = description.toString()) >+ return *string; >+ CRASH(); > } > > >diff --git a/Source/WebKit/UIProcess/WebBackForwardList.cpp b/Source/WebKit/UIProcess/WebBackForwardList.cpp >index 6006a02..128f567 100644 >--- a/Source/WebKit/UIProcess/WebBackForwardList.cpp >+++ b/Source/WebKit/UIProcess/WebBackForwardList.cpp >@@ -493,7 +493,9 @@ const char* WebBackForwardList::loggingString() > builder.append(m_entries[i]->loggingString()); > } > >- return debugString("\n", builder.toString()); >+ if (auto string = builder.toString()) >+ return debugString("\n", *string); >+ CRASH(); > } > #endif // !LOG_DISABLED > >diff --git a/Source/WebKit/UIProcess/WebProcessPool.cpp b/Source/WebKit/UIProcess/WebProcessPool.cpp >index 7c000ab..e03e0fb 100644 >--- a/Source/WebKit/UIProcess/WebProcessPool.cpp >+++ b/Source/WebKit/UIProcess/WebProcessPool.cpp >@@ -710,7 +710,10 @@ void WebProcessPool::didReceiveInvalidMessage(const IPC::StringReference& messag > messageNameStringBuilder.append('.'); > messageNameStringBuilder.append(messageName.data(), messageName.size()); > >- s_invalidMessageCallback(toAPI(API::String::create(messageNameStringBuilder.toString()).ptr())); >+ if (auto string = messageNameStringBuilder.toString()) >+ s_invalidMessageCallback(toAPI(API::String::create(*string).ptr())); >+ else >+ CRASH(); > } > > void WebProcessPool::processDidCachePage(WebProcessProxy* process) >diff --git a/Source/WebKit/UIProcess/WebProcessProxy.cpp b/Source/WebKit/UIProcess/WebProcessProxy.cpp >index 4156d83..ef09db0 100644 >--- a/Source/WebKit/UIProcess/WebProcessProxy.cpp >+++ b/Source/WebKit/UIProcess/WebProcessProxy.cpp >@@ -170,7 +170,10 @@ void WebProcessProxy::getLaunchOptions(ProcessLauncher::LaunchOptions& launchOpt > languageString.append(','); > languageString.append(overrideLanguages[i]); > } >- launchOptions.extraInitializationData.add(ASCIILiteral("OverrideLanguages"), languageString.toString()); >+ if (auto string = languageString.toString()) >+ launchOptions.extraInitializationData.add(ASCIILiteral("OverrideLanguages"), *string); >+ else >+ CRASH(); > } > > launchOptions.nonValidInjectedCodeAllowed = shouldAllowNonValidInjectedCode(); >diff --git a/Source/WebKit/UIProcess/WebResourceLoadStatisticsStore.cpp b/Source/WebKit/UIProcess/WebResourceLoadStatisticsStore.cpp >index 7fa8910..5d9b766 100644 >--- a/Source/WebKit/UIProcess/WebResourceLoadStatisticsStore.cpp >+++ b/Source/WebKit/UIProcess/WebResourceLoadStatisticsStore.cpp >@@ -227,7 +227,10 @@ void WebResourceLoadStatisticsStore::removeDataRecords(CompletionHandler<void()> > appendWithDelimiter(domainsToRemoveDataRecordsForBuilder, domain, isFirstItem); > isFirstItem = false; > } >- RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to remove data records for %{public}s.", domainsToRemoveDataRecordsForBuilder.toString().utf8().data()); >+ if (auto string = domainsToRemoveDataRecordsForBuilder.toString()) >+ RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to remove data records for %{public}s.", string->utf8().data()); >+ else >+ CRASH(); > } > #endif > >@@ -1044,7 +1047,10 @@ void WebResourceLoadStatisticsStore::updateCookiePartitioning(CompletionHandler< > appendWithDelimiter(domainsToPartitionBuilder, domain, isFirstDomain); > isFirstDomain = false; > } >- RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to partition cookies in third-party contexts for %{public}s.", domainsToPartitionBuilder.toString().utf8().data()); >+ if (auto string = domainsToPartitionBuilder.toString()) >+ RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to partition cookies in third-party contexts for %{public}s.", string->utf8().data()); >+ else >+ CRASH(); > } > > if (!domainsToBlock.isEmpty()) { >@@ -1054,7 +1060,10 @@ void WebResourceLoadStatisticsStore::updateCookiePartitioning(CompletionHandler< > appendWithDelimiter(domainsToBlockBuilder, domain, isFirstDomain); > isFirstDomain = false; > } >- RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to block cookies in third-party contexts for %{public}s.", domainsToBlockBuilder.toString().utf8().data()); >+ if (auto string = domainsToBlockBuilder.toString()) >+ RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to block cookies in third-party contexts for %{public}s.", string->utf8().data()); >+ else >+ CRASH(); > } > > if (!domainsToNeitherPartitionNorBlock.isEmpty()) { >@@ -1064,7 +1073,10 @@ void WebResourceLoadStatisticsStore::updateCookiePartitioning(CompletionHandler< > appendWithDelimiter(domainsToNeitherPartitionNorBlockBuilder, domain, isFirstDomain); > isFirstDomain = false; > } >- RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to neither partition nor block cookies in third-party contexts for %{public}s.", domainsToNeitherPartitionNorBlockBuilder.toString().utf8().data()); >+ if (auto string = domainsToNeitherPartitionNorBlockBuilder.toString()) >+ RELEASE_LOG_INFO(ResourceLoadStatisticsDebug, "About to neither partition nor block cookies in third-party contexts for %{public}s.", string->utf8().data()); >+ else >+ CRASH(); > } > } > #endif >diff --git a/Source/WebKit/UIProcess/WebResourceLoadStatisticsTelemetry.cpp b/Source/WebKit/UIProcess/WebResourceLoadStatisticsTelemetry.cpp >index bb7440c..520ab778 100644 >--- a/Source/WebKit/UIProcess/WebResourceLoadStatisticsTelemetry.cpp >+++ b/Source/WebKit/UIProcess/WebResourceLoadStatisticsTelemetry.cpp >@@ -179,22 +179,23 @@ static void submitTopList(unsigned numberOfResourcesFromTheTop, const Vector<Pre > StringBuilder preambleBuilder; > preambleBuilder.appendLiteral("top"); > preambleBuilder.appendNumber(numberOfResourcesFromTheTop); >- String descriptionPreamble = preambleBuilder.toString(); >- >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "PrevalentResourcesWithUserInteraction", >- topPrevalentResourcesWithUserInteraction, significantFiguresForLoggedValues, ShouldSample::No); >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "SubframeUnderTopFrameOrigins", >- topSubframeUnderTopFrameOrigins, significantFiguresForLoggedValues, ShouldSample::No); >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "SubresourceUnderTopFrameOrigins", >- topSubresourceUnderTopFrameOrigins, significantFiguresForLoggedValues, ShouldSample::No); >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "SubresourceUniqueRedirectsTo", >- topSubresourceUniqueRedirectsTo, significantFiguresForLoggedValues, ShouldSample::No); >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "NumberOfTimesDataRecordsRemoved", >- topNumberOfTimesDataRecordsRemoved, significantFiguresForLoggedValues, ShouldSample::No); >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "NumberOfTimesAccessedAsFirstPartyDueToUserInteraction", >- topNumberOfTimesAccessedAsFirstPartyDueToUserInteraction, significantFiguresForLoggedValues, ShouldSample::No); >- webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), descriptionPreamble + "NumberOfTimesAccessedAsFirstPartyDueToStorageAccessAPI", >- topNumberOfTimesAccessedAsFirstPartyDueToStorageAccessAPI, significantFiguresForLoggedValues, ShouldSample::No); >+ if (auto descriptionPreamble = preambleBuilder.toString()) { >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "PrevalentResourcesWithUserInteraction", >+ topPrevalentResourcesWithUserInteraction, significantFiguresForLoggedValues, ShouldSample::No); >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "SubframeUnderTopFrameOrigins", >+ topSubframeUnderTopFrameOrigins, significantFiguresForLoggedValues, ShouldSample::No); >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "SubresourceUnderTopFrameOrigins", >+ topSubresourceUnderTopFrameOrigins, significantFiguresForLoggedValues, ShouldSample::No); >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "SubresourceUniqueRedirectsTo", >+ topSubresourceUniqueRedirectsTo, significantFiguresForLoggedValues, ShouldSample::No); >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "NumberOfTimesDataRecordsRemoved", >+ topNumberOfTimesDataRecordsRemoved, significantFiguresForLoggedValues, ShouldSample::No); >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "NumberOfTimesAccessedAsFirstPartyDueToUserInteraction", >+ topNumberOfTimesAccessedAsFirstPartyDueToUserInteraction, significantFiguresForLoggedValues, ShouldSample::No); >+ webPageProxy.logDiagnosticMessageWithValue(DiagnosticLoggingKeys::resourceLoadStatisticsTelemetryKey(), *descriptionPreamble + "NumberOfTimesAccessedAsFirstPartyDueToStorageAccessAPI", >+ topNumberOfTimesAccessedAsFirstPartyDueToStorageAccessAPI, significantFiguresForLoggedValues, ShouldSample::No); >+ } else >+ CRASH(); > } > > static void submitTopLists(const Vector<PrevalentResourceTelemetry>& sortedPrevalentResources, const Vector<PrevalentResourceTelemetry>& sortedPrevalentResourcesWithoutUserInteraction, WebPageProxy& webPageProxy) >diff --git a/Source/WebKit/WebProcess/Plugins/Netscape/NetscapeBrowserFuncs.cpp b/Source/WebKit/WebProcess/Plugins/Netscape/NetscapeBrowserFuncs.cpp >index 0bccfaf..ada5f41 100644 >--- a/Source/WebKit/WebProcess/Plugins/Netscape/NetscapeBrowserFuncs.cpp >+++ b/Source/WebKit/WebProcess/Plugins/Netscape/NetscapeBrowserFuncs.cpp >@@ -138,7 +138,9 @@ static String capitalizeRFC822HeaderFieldName(const String& name) > else > capitalizeCharacter = false; > } >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > static HTTPHeaderMap parseRFC822HeaderFields(const char* bytes, unsigned length) >diff --git a/Source/WebKit/WebProcess/Plugins/PluginView.cpp b/Source/WebKit/WebProcess/Plugins/PluginView.cpp >index a7fcace..799ad9b 100644 >--- a/Source/WebKit/WebProcess/Plugins/PluginView.cpp >+++ b/Source/WebKit/WebProcess/Plugins/PluginView.cpp >@@ -212,7 +212,9 @@ static String buildHTTPHeaders(const ResourceResponse& response, long long& expe > if (!contentEncoding.isNull() && contentEncoding != "identity") > expectedContentLength = -1; > >- return header.toString(); >+ if (auto string = header.toString()) >+ return *string; >+ CRASH(); > } > > static uint32_t lastModifiedDateMS(const ResourceResponse& response) >diff --git a/Source/WebKit/WebProcess/WebPage/WebFrame.cpp b/Source/WebKit/WebProcess/WebPage/WebFrame.cpp >index 16abe55..489c8ce 100644 >--- a/Source/WebKit/WebProcess/WebPage/WebFrame.cpp >+++ b/Source/WebKit/WebProcess/WebPage/WebFrame.cpp >@@ -351,7 +351,9 @@ String WebFrame::contentsAsString() const > builder.append(webFrame->contentsAsString()); > } > // FIXME: It may make sense to use toStringPreserveCapacity() here. >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > Document* document = m_coreFrame->document(); >diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog >index 07d48cd..d413162 100644 >--- a/Source/WebKitLegacy/mac/ChangeLog >+++ b/Source/WebKitLegacy/mac/ChangeLog >@@ -1,3 +1,15 @@ >+2018-04-26 JF Bastien <jfbastien@apple.com> >+ >+ StringBuilder is fallible >+ https://bugs.webkit.org/show_bug.cgi?id=185048 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ Teach StringBuilder that it is fallible >+ >+ * WebView/WebHTMLRepresentation.mm: >+ (regExpForLabels): >+ > 2018-04-25 Jiewen Tan <jiewen_tan@apple.com> > > Remove access to keychain from the WebContent process >diff --git a/Source/WebKitLegacy/mac/WebView/WebHTMLRepresentation.mm b/Source/WebKitLegacy/mac/WebView/WebHTMLRepresentation.mm >index 1918363..2b27a56 100644 >--- a/Source/WebKitLegacy/mac/WebView/WebHTMLRepresentation.mm >+++ b/Source/WebKitLegacy/mac/WebView/WebHTMLRepresentation.mm >@@ -394,7 +394,10 @@ static RegularExpression* regExpForLabels(NSArray *labels) > pattern.appendLiteral("\\b"); > } > pattern.append(')'); >- result = new RegularExpression(pattern.toString(), JSC::Yarr::TextCaseInsensitive); >+ if (auto string = pattern.toString()) >+ result = new RegularExpression(*string, JSC::Yarr::TextCaseInsensitive); >+ else >+ CRASH(); > } > > // add regexp to the cache, making sure it is at the front for LRU ordering >diff --git a/Tools/ChangeLog b/Tools/ChangeLog >index f5761aa..42095b0 100644 >--- a/Tools/ChangeLog >+++ b/Tools/ChangeLog >@@ -1,3 +1,81 @@ >+2018-04-26 JF Bastien <jfbastien@apple.com> >+ >+ StringBuilder is fallible >+ https://bugs.webkit.org/show_bug.cgi?id=185048 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ StringBuilder can fail when allocating memory. StringBuilder is >+ mostly used with user input, which often means that just crashing >+ isn't the right outcome. Our fuzzers often encounter such things >+ for JavaScriptCore, and so far we've applied point solutions. No >+ more! >+ >+ * TestWebKitAPI/Tests/WTF/StringBuilder.cpp: >+ (TestWebKitAPI::expectBuilderContent): >+ (TestWebKitAPI::expectEmpty): >+ (TestWebKitAPI::TEST): >+ * TestWebKitAPI/Tests/WTF/StringView.cpp: >+ (TestWebKitAPI::TEST): >+ * TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp: >+ (TestWebKitAPI::TEST_F): >+ * TestWebKitAPI/Tests/WebCore/FileMonitor.cpp: >+ (TestWebKitAPI::createCommand): >+ (TestWebKitAPI::TEST_F): >+ * TestWebKitAPI/Tests/WebCore/Logging.cpp: >+ (TestWebKitAPI::LoggingTest::output): >+ (TestWebKitAPI::TEST_F): >+ (TestWebKitAPI::LogObserver::log): >+ * TestWebKitAPI/Tests/WebCore/TextCodec.cpp: >+ (TestWebKitAPI::testDecode): >+ * TestWebKitAPI/WTFStringUtilities.h: >+ (utf16String): >+ * WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp: >+ (WTR::dumpPath): >+ (WTR::rangeToStr): >+ (WTR::styleDecToStr): >+ (WTR::securityOriginToStr): >+ (WTR::frameToStr): >+ (WTR::dumpLoadEvent): >+ (WTR::InjectedBundlePage::dump): >+ (WTR::InjectedBundlePage::didReceiveTitleForFrame): >+ (WTR::InjectedBundlePage::willPerformClientRedirectForFrame): >+ (WTR::InjectedBundlePage::didFinishDocumentLoadForFrame): >+ (WTR::InjectedBundlePage::willSendRequestForFrame): >+ (WTR::InjectedBundlePage::didReceiveResponseForResource): >+ (WTR::InjectedBundlePage::didFinishLoadForResource): >+ (WTR::InjectedBundlePage::didFailLoadForResource): >+ (WTR::InjectedBundlePage::shouldCacheResponse): >+ (WTR::InjectedBundlePage::decidePolicyForNavigationAction): >+ (WTR::InjectedBundlePage::decidePolicyForResponse): >+ (WTR::InjectedBundlePage::willAddMessageToConsole): >+ (WTR::InjectedBundlePage::willSetStatusbarText): >+ (WTR::InjectedBundlePage::willRunJavaScriptAlert): >+ (WTR::InjectedBundlePage::willRunJavaScriptConfirm): >+ (WTR::InjectedBundlePage::willRunJavaScriptPrompt): >+ (WTR::InjectedBundlePage::didReachApplicationCacheOriginQuota): >+ (WTR::InjectedBundlePage::didExceedDatabaseQuota): >+ (WTR::InjectedBundlePage::shouldBeginEditing): >+ (WTR::InjectedBundlePage::shouldEndEditing): >+ (WTR::InjectedBundlePage::shouldInsertNode): >+ (WTR::InjectedBundlePage::shouldInsertText): >+ (WTR::InjectedBundlePage::shouldDeleteRange): >+ (WTR::InjectedBundlePage::shouldChangeSelectedRange): >+ (WTR::InjectedBundlePage::shouldApplyStyle): >+ (WTR::InjectedBundlePage::didBeginEditing): >+ (WTR::InjectedBundlePage::didEndEditing): >+ (WTR::InjectedBundlePage::didChange): >+ (WTR::InjectedBundlePage::didChangeSelection): >+ * WebKitTestRunner/InjectedBundle/TestRunner.cpp: >+ (WTR::TestRunner::statisticsDidRunTelemetryCallback): >+ (WTR::TestRunner::callDidReceiveAllStorageAccessEntriesCallback): >+ * WebKitTestRunner/TestController.cpp: >+ (WTR::TestController::decideDestinationWithSuggestedFilename): >+ (WTR::TestController::downloadDidReceiveServerRedirectToURL): >+ (WTR::TestController::downloadDidFail): >+ * WebKitTestRunner/TestInvocation.cpp: >+ (WTR::TestInvocation::dumpResults): >+ > 2018-04-25 Jonathan Bedard <jbedard@apple.com> > > REGRESSION (r230998): Bot watcher's dashboard doesn't display number of API test failures >diff --git a/Tools/TestWebKitAPI/Tests/WTF/CrossThreadTask.cpp b/Tools/TestWebKitAPI/Tests/WTF/CrossThreadTask.cpp >index 52c0bcd..f61fa32 100644 >--- a/Tools/TestWebKitAPI/Tests/WTF/CrossThreadTask.cpp >+++ b/Tools/TestWebKitAPI/Tests/WTF/CrossThreadTask.cpp >@@ -88,7 +88,9 @@ struct LifetimeLogger { > builder.append("-"); > builder.append(String::number(moveGeneration)); > >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } > > const char& name { *"<default>" }; >diff --git a/Tools/TestWebKitAPI/Tests/WTF/StringBuilder.cpp b/Tools/TestWebKitAPI/Tests/WTF/StringBuilder.cpp >index 6b8e05c..7867500 100644 >--- a/Tools/TestWebKitAPI/Tests/WTF/StringBuilder.cpp >+++ b/Tools/TestWebKitAPI/Tests/WTF/StringBuilder.cpp >@@ -1,6 +1,6 @@ > /* > * Copyright (C) 2011 Google Inc. All rights reserved. >- * Copyright (C) 2013 Apple Inc. All rights reserved. >+ * Copyright (C) 2013-2018 Apple Inc. All rights reserved. > * > * Redistribution and use in source and binary forms, with or without > * modification, are permitted provided that the following conditions are >@@ -39,16 +39,16 @@ static void expectBuilderContent(const String& expected, const StringBuilder& bu > // Not using builder.toString() or builder.toStringPreserveCapacity() because they all > // change internal state of builder. > if (builder.is8Bit()) >- EXPECT_EQ(expected, String(builder.characters8(), builder.length())); >+ EXPECT_EQ(expected, String(builder.characters8().value(), builder.length())); > else >- EXPECT_EQ(expected, String(builder.characters16(), builder.length())); >+ EXPECT_EQ(expected, String(builder.characters16().value(), builder.length())); > } > > void expectEmpty(const StringBuilder& builder) > { > EXPECT_EQ(0U, builder.length()); > EXPECT_TRUE(builder.isEmpty()); >- EXPECT_EQ(0, builder.characters8()); >+ EXPECT_EQ(0, builder.characters8().value()); > } > > TEST(StringBuilderTest, DefaultConstructor) >@@ -71,24 +71,24 @@ TEST(StringBuilderTest, Append) > builder.append('#'); > expectBuilderContent("0123456789abcdefg#", builder); > >- builder.toString(); // Test after reifyString(). >+ builder.toString().value(); // Test after reifyString(). > StringBuilder builder1; > builder.append("", 0); > expectBuilderContent("0123456789abcdefg#", builder); >- builder1.append(builder.characters8(), builder.length()); >+ builder1.append(builder.characters8().value(), builder.length()); > builder1.append("XYZ"); >- builder.append(builder1.characters8(), builder1.length()); >+ builder.append(builder1.characters8().value(), builder1.length()); > expectBuilderContent("0123456789abcdefg#0123456789abcdefg#XYZ", builder); > > StringBuilder builder2; > builder2.reserveCapacity(100); > builder2.append("xyz"); >- const LChar* characters = builder2.characters8(); >+ const LChar* characters = builder2.characters8().value(); > builder2.append("0123456789"); >- ASSERT_EQ(characters, builder2.characters8()); >- builder2.toStringPreserveCapacity(); // Test after reifyString with buffer preserved. >+ ASSERT_EQ(characters, builder2.characters8().value()); >+ builder2.toStringPreserveCapacity().value(); // Test after reifyString with buffer preserved. > builder2.append("abcd"); >- ASSERT_EQ(characters, builder2.characters8()); >+ ASSERT_EQ(characters, builder2.characters8().value()); > > // Test appending UChar32 characters to StringBuilder. > StringBuilder builderForUChar32Append; >@@ -105,9 +105,9 @@ TEST(StringBuilderTest, ToString) > { > StringBuilder builder; > builder.append("0123456789"); >- String string = builder.toString(); >+ String string = builder.toString().value(); > ASSERT_EQ(String("0123456789"), string); >- ASSERT_EQ(string.impl(), builder.toString().impl()); >+ ASSERT_EQ(string.impl(), builder.toString().value().impl()); > > // Changing the StringBuilder should not affect the original result of toString(). > builder.append("abcdefghijklmnopqrstuvwxyz"); >@@ -115,20 +115,20 @@ TEST(StringBuilderTest, ToString) > > // Changing the StringBuilder should not affect the original result of toString() in case the capacity is not changed. > builder.reserveCapacity(200); >- string = builder.toString(); >+ string = builder.toString().value(); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyz"), string); > builder.append("ABC"); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyz"), string); > > // Changing the original result of toString() should not affect the content of the StringBuilder. >- String string1 = builder.toString(); >+ String string1 = builder.toString().value(); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), string1); > string1.append("DEF"); >- ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), builder.toString()); >+ ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), builder.toString().value()); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABCDEF"), string1); > > // Resizing the StringBuilder should not affect the original result of toString(). >- string1 = builder.toString(); >+ string1 = builder.toString().value(); > builder.resize(10); > builder.append("###"); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), string1); >@@ -139,11 +139,11 @@ TEST(StringBuilderTest, ToStringPreserveCapacity) > StringBuilder builder; > builder.append("0123456789"); > unsigned capacity = builder.capacity(); >- String string = builder.toStringPreserveCapacity(); >+ String string = builder.toStringPreserveCapacity().value(); > ASSERT_EQ(capacity, builder.capacity()); > ASSERT_EQ(String("0123456789"), string); >- ASSERT_EQ(string.impl(), builder.toStringPreserveCapacity().impl()); >- ASSERT_EQ(string.characters8(), builder.characters8()); >+ ASSERT_EQ(string.impl(), builder.toStringPreserveCapacity().value().impl()); >+ ASSERT_EQ(string.characters8(), builder.characters8().value()); > > // Changing the StringBuilder should not affect the original result of toStringPreserveCapacity(). > builder.append("abcdefghijklmnopqrstuvwxyz"); >@@ -152,28 +152,28 @@ TEST(StringBuilderTest, ToStringPreserveCapacity) > // Changing the StringBuilder should not affect the original result of toStringPreserveCapacity() in case the capacity is not changed. > builder.reserveCapacity(200); > capacity = builder.capacity(); >- string = builder.toStringPreserveCapacity(); >+ string = builder.toStringPreserveCapacity().value(); > ASSERT_EQ(capacity, builder.capacity()); >- ASSERT_EQ(string.characters8(), builder.characters8()); >+ ASSERT_EQ(string.characters8(), builder.characters8().value()); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyz"), string); > builder.append("ABC"); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyz"), string); > > // Changing the original result of toStringPreserveCapacity() should not affect the content of the StringBuilder. > capacity = builder.capacity(); >- String string1 = builder.toStringPreserveCapacity(); >+ String string1 = builder.toStringPreserveCapacity().value(); > ASSERT_EQ(capacity, builder.capacity()); >- ASSERT_EQ(string1.characters8(), builder.characters8()); >+ ASSERT_EQ(string1.characters8(), builder.characters8().value()); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), string1); > string1.append("DEF"); >- ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), builder.toStringPreserveCapacity()); >+ ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), builder.toStringPreserveCapacity().value()); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABCDEF"), string1); > > // Resizing the StringBuilder should not affect the original result of toStringPreserveCapacity(). > capacity = builder.capacity(); >- string1 = builder.toStringPreserveCapacity(); >+ string1 = builder.toStringPreserveCapacity().value(); > ASSERT_EQ(capacity, builder.capacity()); >- ASSERT_EQ(string.characters8(), builder.characters8()); >+ ASSERT_EQ(string.characters8(), builder.characters8().value()); > builder.resize(10); > builder.append("###"); > ASSERT_EQ(String("0123456789abcdefghijklmnopqrstuvwxyzABC"), string1); >@@ -191,11 +191,11 @@ TEST(StringBuilderTest, Array) > { > StringBuilder builder; > builder.append("0123456789"); >- EXPECT_EQ('0', static_cast<char>(builder[0])); >- EXPECT_EQ('9', static_cast<char>(builder[9])); >- builder.toString(); // Test after reifyString(). >- EXPECT_EQ('0', static_cast<char>(builder[0])); >- EXPECT_EQ('9', static_cast<char>(builder[9])); >+ EXPECT_EQ('0', static_cast<char>(builder[0].value())); >+ EXPECT_EQ('9', static_cast<char>(builder[9].value())); >+ builder.toString().value(); // Test after reifyString(). >+ EXPECT_EQ('0', static_cast<char>(builder[0].value())); >+ EXPECT_EQ('9', static_cast<char>(builder[9].value())); > } > > TEST(StringBuilderTest, Resize) >@@ -209,7 +209,7 @@ TEST(StringBuilderTest, Resize) > EXPECT_EQ(8U, builder.length()); > expectBuilderContent("01234567", builder); > >- builder.toString(); >+ builder.toString().value(); > builder.resize(7); > EXPECT_EQ(7U, builder.length()); > expectBuilderContent("0123456", builder); >@@ -240,13 +240,13 @@ TEST(StringBuilderTest, Equal) > ASSERT_TRUE(builder2 != builder1); > ASSERT_TRUE(String("123") != builder2); > ASSERT_TRUE(builder2 != String("123")); >- builder2.toString(); // Test after reifyString(). >+ builder2.toString().value(); // Test after reifyString(). > ASSERT_TRUE(builder1 != builder2); > > builder2.resize(3); > ASSERT_TRUE(builder1 == builder2); > >- builder1.toString(); // Test after reifyString(). >+ builder1.toString().value(); // Test after reifyString(). > ASSERT_TRUE(builder1 == builder2); > } > >@@ -265,14 +265,14 @@ TEST(StringBuilderTest, ToAtomicString) > { > StringBuilder builder; > builder.append("123"); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(String("123"), atomicString); > > builder.reserveCapacity(256); > ASSERT_TRUE(builder.canShrink()); > for (int i = builder.length(); i < 128; i++) > builder.append('x'); >- AtomicString atomicString1 = builder.toAtomicString(); >+ AtomicString atomicString1 = builder.toAtomicString().value(); > ASSERT_EQ(128u, atomicString1.length()); > ASSERT_EQ('x', atomicString1[127]); > >@@ -282,8 +282,8 @@ TEST(StringBuilderTest, ToAtomicString) > ASSERT_EQ(128u, atomicString1.length()); > > ASSERT_FALSE(builder.canShrink()); >- String string = builder.toString(); >- AtomicString atomicString2 = builder.toAtomicString(); >+ String string = builder.toString().value(); >+ AtomicString atomicString2 = builder.toAtomicString().value(); > // They should share the same StringImpl. > ASSERT_EQ(atomicString2.impl(), string.impl()); > } >@@ -292,45 +292,45 @@ TEST(StringBuilderTest, ToAtomicStringOnEmpty) > { > { // Default constructed. > StringBuilder builder; >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > { // With capacity. > StringBuilder builder; > builder.reserveCapacity(64); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > { // AtomicString constructed from a null string. > StringBuilder builder; > builder.append(String()); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > { // AtomicString constructed from an empty string. > StringBuilder builder; > builder.append(emptyString()); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > { // AtomicString constructed from an empty StringBuilder. > StringBuilder builder; > StringBuilder emptyBuilder; > builder.append(emptyBuilder); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > { // AtomicString constructed from an empty char* string. > StringBuilder builder; > builder.append("", 0); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > { // Cleared StringBuilder. > StringBuilder builder; > builder.appendLiteral("WebKit"); > builder.clear(); >- AtomicString atomicString = builder.toAtomicString(); >+ AtomicString atomicString = builder.toAtomicString().value(); > ASSERT_EQ(emptyAtom(), atomicString); > } > } >diff --git a/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp b/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp >index fc28b00..8b28309 100644 >--- a/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp >+++ b/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp >@@ -164,65 +164,65 @@ TEST(WTF, StringViewIterators) > > StringBuilder b; > build(b, {0xD800, 0xDD55}); // Surrogates for unicode code point U+10155 >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0x10155})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0xD800, 0xDD55})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.toString())})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0x10155})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0xD800, 0xDD55})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.toString().value())})); > > build(b, {0xD800}); // Leading surrogate only >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0xD800})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0xD800})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.toString())})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0xD800})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0xD800})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.toString().value())})); > > build(b, {0xD800, 0xD801}); // Two leading surrogates >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0xD800, 0xD801})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0xD800, 0xD801})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.characters16(), 1), StringView(b.characters16() + 1, 1)})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0xD800, 0xD801})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0xD800, 0xD801})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.characters16().value(), 1), StringView(b.characters16().value() + 1, 1)})); > > build(b, {0xDD55}); // Trailing surrogate only >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0xDD55})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0xDD55})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.toString())})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0xDD55})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0xDD55})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.toString().value())})); > > build(b, {0xD800, 'h'}); // Leading surrogate followed by non-surrogate >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0xD800, 'h'})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0xD800, 'h'})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.characters16(), 1), StringView(b.characters16() + 1, 1)})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0xD800, 'h'})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0xD800, 'h'})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.characters16().value(), 1), StringView(b.characters16().value() + 1, 1)})); > > build(b, {0x0306}); // "COMBINING BREVE" >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0x0306})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0x0306})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.toString())})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0x0306})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0x0306})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.toString().value())})); > > build(b, {0x0306, 0xD800, 0xDD55, 'h', 'e', 'l', 'o'}); // Mix of single code unit and multi code unit code points >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0x0306, 0x10155, 'h', 'e', 'l', 'o'})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0x0306, 0xD800, 0xDD55, 'h', 'e', 'l', 'o'})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), { >- StringView(b.characters16(), 1), >- StringView(b.characters16() + 1, 2), >- StringView(b.characters16() + 3, 1), >- StringView(b.characters16() + 4, 1), >- StringView(b.characters16() + 5, 1), >- StringView(b.characters16() + 6, 1)})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0x0306, 0x10155, 'h', 'e', 'l', 'o'})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0x0306, 0xD800, 0xDD55, 'h', 'e', 'l', 'o'})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), { >+ StringView(b.characters16().value(), 1), >+ StringView(b.characters16().value() + 1, 2), >+ StringView(b.characters16().value() + 3, 1), >+ StringView(b.characters16().value() + 4, 1), >+ StringView(b.characters16().value() + 5, 1), >+ StringView(b.characters16().value() + 6, 1)})); > > build(b, {'e', 0x0301}); // "COMBINING ACUTE" >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {'e', 0x0301})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {'e', 0x0301})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), {StringView(b.toString())})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {'e', 0x0301})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {'e', 0x0301})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), {StringView(b.toString().value())})); > > build(b, {'e', 0x0301, 0x0306, 'a'}); // "COMBINING ACUTE" "COMBINING BREVE" >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {'e', 0x0301, 0x0306, 'a'})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {'e', 0x0301, 0x0306, 'a'})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), { >- StringView(b.characters16(), 3), >- StringView(b.characters16() + 3, 1), >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {'e', 0x0301, 0x0306, 'a'})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {'e', 0x0301, 0x0306, 'a'})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), { >+ StringView(b.characters16().value(), 3), >+ StringView(b.characters16().value() + 3, 1), > })); > > build(b, {0x1112, 0x116f, 0x11b6, 0x1107, 0x1161, 0x11B8}); // Korean combining Jamo >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codePoints(), {0x1112, 0x116f, 0x11b6, 0x1107, 0x1161, 0x11B8})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).codeUnits(), {0x1112, 0x116f, 0x11b6, 0x1107, 0x1161, 0x11B8})); >- EXPECT_TRUE(compareLoopIterations(StringView(b.toString()).graphemeClusters(), { >- StringView(b.characters16(), 3), >- StringView(b.characters16() + 3, 3)})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codePoints(), {0x1112, 0x116f, 0x11b6, 0x1107, 0x1161, 0x11B8})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).codeUnits(), {0x1112, 0x116f, 0x11b6, 0x1107, 0x1161, 0x11B8})); >+ EXPECT_TRUE(compareLoopIterations(StringView(b.toString().value()).graphemeClusters(), { >+ StringView(b.characters16().value(), 3), >+ StringView(b.characters16().value() + 3, 3)})); > } > > static Vector<String> vectorFromSplitResult(const StringView::SplitResult& substrings) >diff --git a/Tools/TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp b/Tools/TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp >index dcce468..0383864 100644 >--- a/Tools/TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp >+++ b/Tools/TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp >@@ -1209,15 +1209,18 @@ TEST_F(ContentExtensionTest, WideNFA) > } > } > ruleList.append(']'); >- >- auto backend = makeBackend(ruleList.toString().utf8().data()); > >- testRequest(backend, mainDocumentRequest("http://webkit.org/AAA"), { ContentExtensions::ActionType::CSSDisplayNoneSelector }); >- testRequest(backend, mainDocumentRequest("http://webkit.org/YAA"), { ContentExtensions::ActionType::CSSDisplayNoneSelector }); >- testRequest(backend, mainDocumentRequest("http://webkit.org/ZAA"), { }, 0); >- testRequest(backend, mainDocumentRequest("http://webkit.org/LAA/AAA"), { }, 0); >- testRequest(backend, mainDocumentRequest("http://webkit.org/LAA/MAA"), { ContentExtensions::ActionType::CSSDisplayNoneSelector }, 0); >- testRequest(backend, mainDocumentRequest("http://webkit.org/"), { }); >+ if (auto string = ruleList.toString()) { >+ auto backend = makeBackend(string->utf8().data()); >+ >+ testRequest(backend, mainDocumentRequest("http://webkit.org/AAA"), { ContentExtensions::ActionType::CSSDisplayNoneSelector }); >+ testRequest(backend, mainDocumentRequest("http://webkit.org/YAA"), { ContentExtensions::ActionType::CSSDisplayNoneSelector }); >+ testRequest(backend, mainDocumentRequest("http://webkit.org/ZAA"), { }, 0); >+ testRequest(backend, mainDocumentRequest("http://webkit.org/LAA/AAA"), { }, 0); >+ testRequest(backend, mainDocumentRequest("http://webkit.org/LAA/MAA"), { ContentExtensions::ActionType::CSSDisplayNoneSelector }, 0); >+ testRequest(backend, mainDocumentRequest("http://webkit.org/"), { }); >+ } else >+ CRASH(); > } > > #ifdef NDEBUG >@@ -1247,7 +1250,10 @@ TEST_F(ContentExtensionTest, LargeJumps) > pattern.append(c2); > pattern.append(c3); > pattern.append(c4); >- EXPECT_EQ(ContentExtensions::URLFilterParser::ParseStatus::Ok, parser.addPattern(pattern.toString(), true, patternId++)); >+ if (auto string = pattern.toString()) >+ EXPECT_EQ(ContentExtensions::URLFilterParser::ParseStatus::Ok, parser.addPattern(*string, true, patternId++)); >+ else >+ CRASH(); > } > } > } >@@ -1308,17 +1314,20 @@ TEST_F(ContentExtensionTest, LargeJumps) > pattern.append('x'); > break; > } >- auto matches = interpreter.interpret(pattern.toString().utf8(), 0); >- switch ((c1 + c2 + c3 + c4) % 4) { >- case 0: >- compareContents(matches, { }); >- break; >- case 1: >- case 2: >- case 3: >- compareContents(matches, {patternId}); >- break; >- } >+ if (auto string = pattern.toString()) { >+ auto matches = interpreter.interpret(string->utf8(), 0); >+ switch ((c1 + c2 + c3 + c4) % 4) { >+ case 0: >+ compareContents(matches, { }); >+ break; >+ case 1: >+ case 2: >+ case 3: >+ compareContents(matches, {patternId}); >+ break; >+ } >+ } else >+ CRASH(); > patternId++; > } > } >@@ -1348,13 +1357,19 @@ TEST_F(ContentExtensionTest, DeepNFA) > StringBuilder lotsOfAs; > for (unsigned i = 0; i < size; ++i) > lotsOfAs.append('A'); >- EXPECT_EQ(ContentExtensions::URLFilterParser::ParseStatus::Ok, parser.addPattern(lotsOfAs.toString().utf8().data(), false, 0)); >+ if (auto string = lotsOfAs.toString()) >+ EXPECT_EQ(ContentExtensions::URLFilterParser::ParseStatus::Ok, parser.addPattern(string->utf8().data(), false, 0)); >+ else >+ CRASH(); > > // FIXME: Yarr ought to be able to handle 2MB regular expressions. > StringBuilder tooManyAs; > for (unsigned i = 0; i < size * 20; ++i) > tooManyAs.append('A'); >- EXPECT_EQ(ContentExtensions::URLFilterParser::ParseStatus::YarrError, parser.addPattern(tooManyAs.toString().utf8().data(), false, 0)); >+ if (auto string = tooManyAs.toString()) >+ EXPECT_EQ(ContentExtensions::URLFilterParser::ParseStatus::YarrError, parser.addPattern(string->utf8().data(), false, 0)); >+ else >+ CRASH(); > > StringBuilder nestedGroups; > for (unsigned i = 0; i < size; ++i) >@@ -1490,17 +1505,22 @@ TEST_F(ContentExtensionTest, InvalidJSON) > checkCompilerError("[{\"action\":{\"type\":\"notify\",\"notification\":[]},\"trigger\":{\"url-filter\":\".*\"}}]", ContentExtensions::ContentExtensionError::JSONInvalidNotification); > checkCompilerError("[{\"action\":{\"type\":\"notify\",\"notification\":\"here's my notification\"},\"trigger\":{\"url-filter\":\".*\"}}]", { }); > checkCompilerError("[{\"action\":{\"type\":\"notify\",\"notification\":\"\\u1234\"},\"trigger\":{\"url-filter\":\".*\"}}]", { }); >- >- StringBuilder rules; >- rules.append("["); >- for (unsigned i = 0; i < 49999; ++i) >- rules.append("{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}},"); >- String rules50000 = rules.toString(); >- String rules50001 = rules.toString(); >- rules50000.append("{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}}]"); >- rules50001.append("{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}},{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}}]"); >- checkCompilerError(rules50000.utf8().data(), { }); >- checkCompilerError(rules50001.utf8().data(), ContentExtensions::ContentExtensionError::JSONTooManyRules); >+ >+ { >+ StringBuilder rules; >+ rules.append("["); >+ for (unsigned i = 0; i < 49999; ++i) >+ rules.append("{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}},"); >+ if (auto string = rules.toString()) { >+ String rules50000 = *string; >+ String rules50001 = *string; >+ rules50000.append("{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}}]"); >+ rules50001.append("{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}},{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"a\"}}]"); >+ checkCompilerError(rules50000.utf8().data(), { }); >+ checkCompilerError(rules50001.utf8().data(), ContentExtensions::ContentExtensionError::JSONTooManyRules); >+ } else >+ CRASH(); >+ } > > checkCompilerError("[{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"webkit.org\",\"if-domain\":{}}}]", ContentExtensions::ContentExtensionError::JSONInvalidConditionList); > checkCompilerError("[{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"webkit.org\",\"if-domain\":[5]}}]", ContentExtensions::ContentExtensionError::JSONInvalidConditionList); >diff --git a/Tools/TestWebKitAPI/Tests/WebCore/FileMonitor.cpp b/Tools/TestWebKitAPI/Tests/WebCore/FileMonitor.cpp >index 5f1dc8b..e94efc4 100644 >--- a/Tools/TestWebKitAPI/Tests/WebCore/FileMonitor.cpp >+++ b/Tools/TestWebKitAPI/Tests/WebCore/FileMonitor.cpp >@@ -107,7 +107,9 @@ static String createCommand(const String& path, const String& payload) > command.appendLiteral("\" > "); > command.append(path); > >- return command.toString(); >+ if (auto string = command.toString()) >+ return *string; >+ CRASH(); > } > > static String readContentsOfFile(const String& path) >@@ -267,10 +269,13 @@ TEST_F(FileMonitorTest, DetectDeletion) > command.appendLiteral("rm -f "); > command.append(tempFilePath()); > >- auto rc = system(command.toString().utf8().data()); >- ASSERT_NE(rc, -1); >- if (rc == -1) >- didFinish = true; >+ if (auto string = command.toString()) { >+ auto rc = system(string->utf8().data()); >+ ASSERT_NE(rc, -1); >+ if (rc == -1) >+ didFinish = true; >+ } else >+ CRASH(); > }); > > Util::run(&didFinish); >@@ -324,10 +329,13 @@ TEST_F(FileMonitorTest, DetectChangeAndThenDelete) > command.appendLiteral("rm -f "); > command.append(tempFilePath()); > >- auto rc = system(command.toString().utf8().data()); >- ASSERT_NE(rc, -1); >- if (rc == -1) >- didFinish = true; >+ if (auto string = command.toString()) { >+ auto rc = system(string->utf8().data()); >+ ASSERT_NE(rc, -1); >+ if (rc == -1) >+ didFinish = true; >+ } else >+ CRASH(); > }); > > Util::run(&didFinish); >@@ -363,10 +371,13 @@ TEST_F(FileMonitorTest, DetectDeleteButNotSubsequentChange) > command.appendLiteral("rm -f "); > command.append(tempFilePath()); > >- auto rc = system(command.toString().utf8().data()); >- ASSERT_NE(rc, -1); >- if (rc == -1) >- didFinish = true; >+ if (auto string = command.toString()) { >+ auto rc = system(string->utf8().data()); >+ ASSERT_NE(rc, -1); >+ if (rc == -1) >+ didFinish = true; >+ } else >+ CRASH(); > }); > > Util::run(&didFinish); >diff --git a/Tools/TestWebKitAPI/Tests/WebCore/Logging.cpp b/Tools/TestWebKitAPI/Tests/WebCore/Logging.cpp >index 1e4c342..7dedad2 100644 >--- a/Tools/TestWebKitAPI/Tests/WebCore/Logging.cpp >+++ b/Tools/TestWebKitAPI/Tests/WebCore/Logging.cpp >@@ -95,7 +95,9 @@ public: > while ((line = fgets(buffer, sizeof(buffer), m_stderr))) > result.append(line); > >- return result.toString(); >+ if (auto string = result.toString()) >+ return *string; >+ CRASH(); > } > > const Logger& logger() const final { return m_logger.get(); } >@@ -340,15 +342,18 @@ TEST_F(LoggingTest, LoggerHelper) > builder.appendLiteral("LoggingTest::TestBody("); > appendUnsigned64AsHex(reinterpret_cast<uintptr_t>(logIdentifier()), builder); > builder.appendLiteral(")"); >- String signature = builder.toString(); >+ if (auto string = builder.toString()) { >+ String signature = *string; > >- ALWAYS_LOG(LOGIDENTIFIER); >- EXPECT_TRUE(this->output().contains(signature, false)); >+ ALWAYS_LOG(LOGIDENTIFIER); >+ EXPECT_TRUE(this->output().contains(signature, false)); > >- ALWAYS_LOG(LOGIDENTIFIER, "Welcome back", " my friends", " to the show", " that never ends"); >- String result = this->output(); >- EXPECT_TRUE(result.contains(signature, false)); >- EXPECT_TRUE(result.contains("to the show that never", false)); >+ ALWAYS_LOG(LOGIDENTIFIER, "Welcome back", " my friends", " to the show", " that never ends"); >+ String result = this->output(); >+ EXPECT_TRUE(result.contains(signature, false)); >+ EXPECT_TRUE(result.contains("to the show that never", false)); >+ } else >+ CRASH(); > > WTFSetLogChannelLevel(&TestChannel1, WTFLogLevelWarning); > >@@ -371,10 +376,11 @@ public: > > String log() > { >- String log = m_logBuffer.toString(); >- m_logBuffer.clear(); >- >- return log; >+ if (auto log = m_logBuffer.toString()) { >+ m_logBuffer.clear(); >+ return log; >+ } >+ CRASH(); > } > > WTFLogChannel channel() const { return m_lastChannel; } >diff --git a/Tools/TestWebKitAPI/Tests/WebCore/TextCodec.cpp b/Tools/TestWebKitAPI/Tests/WebCore/TextCodec.cpp >index fd05050..9e55530 100644 >--- a/Tools/TestWebKitAPI/Tests/WebCore/TextCodec.cpp >+++ b/Tools/TestWebKitAPI/Tests/WebCore/TextCodec.cpp >@@ -98,7 +98,9 @@ static const char* testDecode(const char* encodingName, std::initializer_list<co > if (sawError) > resultBuilder.appendLiteral(" ERROR"); > } >- return escapeNonASCIIPrintableCharacters(resultBuilder.toString()); >+ if (auto string = resultBuilder.toString()) >+ return escapeNonASCIIPrintableCharacters(*string); >+ CRASH(); > } > > TEST(TextCodec, UTF8) >diff --git a/Tools/TestWebKitAPI/WTFStringUtilities.h b/Tools/TestWebKitAPI/WTFStringUtilities.h >index ecba9c4..f5d41ed 100644 >--- a/Tools/TestWebKitAPI/WTFStringUtilities.h >+++ b/Tools/TestWebKitAPI/WTFStringUtilities.h >@@ -51,5 +51,7 @@ static String utf16String(const char16_t (&url)[length]) > builder.reserveCapacity(length - 1); > for (size_t i = 0; i < length - 1; ++i) > builder.append(static_cast<UChar>(url[i])); >- return builder.toString(); >+ if (auto string = builder.toString()) >+ return *string; >+ CRASH(); > } >diff --git a/Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp b/Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp >index 0555418..50b1214 100644 >--- a/Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp >+++ b/Tools/WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp >@@ -106,7 +106,9 @@ static WTF::String dumpPath(JSGlobalContextRef context, JSObjectRef nodeValue) > stringBuilder.append(dumpPath(context, (JSObjectRef)parentNode)); > } > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static WTF::String dumpPath(WKBundlePageRef page, WKBundleScriptWorldRef world, WKBundleNodeHandleRef node) >@@ -156,7 +158,9 @@ static WTF::String rangeToStr(WKBundlePageRef page, WKBundleScriptWorldRef world > stringBuilder.appendNumber(endOffset); > stringBuilder.appendLiteral(" of "); > stringBuilder.append(dumpPath(context, endNodeObject)); >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static WKRetainPtr<WKStringRef> NavigationTypeToString(WKFrameNavigationType type) >@@ -185,7 +189,9 @@ static WTF::String styleDecToStr(WKBundleCSSStyleDeclarationRef style) > // the editing client if the styling operation source is CommandFromDOM or CommandFromDOMWithUserInterface. > StringBuilder stringBuilder; > stringBuilder.appendLiteral("<DOMCSSStyleDeclaration ADDRESS>"); >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static WTF::String securityOriginToStr(WKSecurityOriginRef origin) >@@ -199,7 +205,9 @@ static WTF::String securityOriginToStr(WKSecurityOriginRef origin) > stringBuilder.appendNumber(WKSecurityOriginGetPort(origin)); > stringBuilder.append('}'); > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static WTF::String frameToStr(WKBundleFrameRef frame) >@@ -223,7 +231,9 @@ static WTF::String frameToStr(WKBundleFrameRef frame) > stringBuilder.appendLiteral("frame (anonymous)"); > } > >- return stringBuilder.toString(); >+ if (auto string = stringBuilder.toString()) >+ return *string; >+ CRASH(); > } > > static inline bool isLocalFileScheme(WKStringRef scheme) >@@ -476,7 +486,10 @@ static void dumpLoadEvent(WKBundleFrameRef frame, const char* eventName) > stringBuilder.appendLiteral(" - "); > stringBuilder.append(eventName); > stringBuilder.append('\n'); >- InjectedBundle::singleton().outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ InjectedBundle::singleton().outputText(*string); >+ else >+ CRASH(); > } > > static inline void dumpRequestDescriptionSuitableForTestResult(WKURLRequestRef request, StringBuilder& stringBuilder) >@@ -940,7 +953,10 @@ void InjectedBundlePage::dump() > injectedBundle.setRepaintRects(adoptWK(WKBundlePageCopyTrackedRepaintRects(m_page)).get()); > } > >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > injectedBundle.done(); > } > >@@ -988,7 +1004,10 @@ void InjectedBundlePage::didReceiveTitleForFrame(WKStringRef title, WKBundleFram > stringBuilder.appendLiteral("'\n"); > } > >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didClearWindowForFrame(WKBundleFrameRef frame, WKBundleScriptWorldRef world) >@@ -1043,7 +1062,10 @@ void InjectedBundlePage::willPerformClientRedirectForFrame(WKBundlePageRef, WKBu > stringBuilder.appendLiteral(" - willPerformClientRedirectToURL: "); > stringBuilder.append(pathSuitableForTestResult(url)); > stringBuilder.appendLiteral(" \n"); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didSameDocumentNavigationForFrame(WKBundleFrameRef frame, WKSameDocumentNavigationType type) >@@ -1077,7 +1099,10 @@ void InjectedBundlePage::didFinishDocumentLoadForFrame(WKBundleFrameRef frame) > stringBuilder.appendLiteral(" - has "); > stringBuilder.appendNumber(pendingFrameUnloadEvents); > stringBuilder.appendLiteral(" onunload handler(s)\n"); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > } > >@@ -1150,7 +1175,10 @@ WKURLRequestRef InjectedBundlePage::willSendRequestForFrame(WKBundlePageRef page > stringBuilder.appendLiteral(" redirectResponse "); > dumpResponseDescriptionSuitableForTestResult(response, stringBuilder, injectedBundle.testRunner()->shouldDumpAllHTTPRedirectedResponseHeaders()); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > if (injectedBundle.isTestRunning() && injectedBundle.testRunner()->willSendRequestReturnsNull()) >@@ -1186,7 +1214,10 @@ WKURLRequestRef InjectedBundlePage::willSendRequestForFrame(WKBundlePageRef page > stringBuilder.appendLiteral("Blocked access to external URL "); > stringBuilder.append(toWTFString(urlString)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > return nullptr; > } > } >@@ -1215,7 +1246,10 @@ void InjectedBundlePage::didReceiveResponseForResource(WKBundlePageRef page, WKB > stringBuilder.appendLiteral(" - didReceiveResponse "); > dumpResponseDescriptionSuitableForTestResult(response, stringBuilder); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > >@@ -1239,7 +1273,10 @@ void InjectedBundlePage::didReceiveResponseForResource(WKBundlePageRef page, WKB > > stringBuilder.append('\n'); > >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didReceiveContentLengthForResource(WKBundlePageRef, WKBundleFrameRef, uint64_t, uint64_t) >@@ -1258,7 +1295,10 @@ void InjectedBundlePage::didFinishLoadForResource(WKBundlePageRef, WKBundleFrame > StringBuilder stringBuilder; > dumpResourceURL(identifier, stringBuilder); > stringBuilder.appendLiteral(" - didFinishLoading\n"); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didFailLoadForResource(WKBundlePageRef, WKBundleFrameRef, uint64_t identifier, WKErrorRef error) >@@ -1276,7 +1316,10 @@ void InjectedBundlePage::didFailLoadForResource(WKBundlePageRef, WKBundleFrameRe > > dumpErrorDescriptionSuitableForTestResult(error, stringBuilder); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > bool InjectedBundlePage::shouldCacheResponse(WKBundlePageRef, WKBundleFrameRef, uint64_t identifier) >@@ -1291,7 +1334,10 @@ bool InjectedBundlePage::shouldCacheResponse(WKBundlePageRef, WKBundleFrameRef, > StringBuilder stringBuilder; > stringBuilder.appendNumber(identifier); > stringBuilder.appendLiteral(" - willCacheResponse: called\n"); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > > // The default behavior is the cache the response. > return true; >@@ -1335,7 +1381,10 @@ WKBundlePagePolicyAction InjectedBundlePage::decidePolicyForNavigationAction(WKB > stringBuilder.appendLiteral(" should open URLs externally - "); > stringBuilder.append(WKBundleNavigationActionGetShouldOpenExternalURLs(navigationAction) ? "yes" : "no"); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > if (!injectedBundle.testRunner()->isPolicyDelegateEnabled()) >@@ -1363,7 +1412,10 @@ WKBundlePagePolicyAction InjectedBundlePage::decidePolicyForNavigationAction(WKB > } > > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > > injectedBundle.testRunner()->notifyDone(); > >@@ -1384,7 +1436,10 @@ WKBundlePagePolicyAction InjectedBundlePage::decidePolicyForResponse(WKBundlePag > stringBuilder.appendLiteral("Policy delegate: resource is an attachment, suggested file name \'"); > stringBuilder.append(toWTFString(filename)); > stringBuilder.appendLiteral("\'\n"); >- InjectedBundle::singleton().outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ InjectedBundle::singleton().outputText(*string); >+ else >+ CRASH(); > } > > if (injectedBundle.testRunner() && injectedBundle.testRunner()->shouldDecideResponsePolicyAfterDelay()) >@@ -1481,10 +1536,13 @@ void InjectedBundlePage::willAddMessageToConsole(WKStringRef message, uint32_t l > stringBuilder.append(messageString); > stringBuilder.append('\n'); > >- if (injectedBundle.dumpJSConsoleLogInStdErr()) >- injectedBundle.dumpToStdErr(stringBuilder.toString()); >- else >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) { >+ if (injectedBundle.dumpJSConsoleLogInStdErr()) >+ injectedBundle.dumpToStdErr(*string); >+ else >+ injectedBundle.outputText(*string); >+ } else >+ CRASH(); > } > > void InjectedBundlePage::willSetStatusbarText(WKStringRef statusbarText) >@@ -1500,7 +1558,10 @@ void InjectedBundlePage::willSetStatusbarText(WKStringRef statusbarText) > stringBuilder.appendLiteral("UI DELEGATE STATUS CALLBACK: setStatusText:"); > stringBuilder.append(toWTFString(statusbarText)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::willRunJavaScriptAlert(WKStringRef message, WKBundleFrameRef) >@@ -1513,7 +1574,10 @@ void InjectedBundlePage::willRunJavaScriptAlert(WKStringRef message, WKBundleFra > stringBuilder.appendLiteral("ALERT: "); > stringBuilder.append(toWTFString(message)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::willRunJavaScriptConfirm(WKStringRef message, WKBundleFrameRef) >@@ -1526,7 +1590,10 @@ void InjectedBundlePage::willRunJavaScriptConfirm(WKStringRef message, WKBundleF > stringBuilder.appendLiteral("CONFIRM: "); > stringBuilder.append(toWTFString(message)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::willRunJavaScriptPrompt(WKStringRef message, WKStringRef defaultValue, WKBundleFrameRef) >@@ -1537,7 +1604,10 @@ void InjectedBundlePage::willRunJavaScriptPrompt(WKStringRef message, WKStringRe > stringBuilder.appendLiteral(", default text: "); > stringBuilder.append(toWTFString(defaultValue)); > stringBuilder.append('\n'); >- InjectedBundle::singleton().outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ InjectedBundle::singleton().outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didReachApplicationCacheOriginQuota(WKSecurityOriginRef origin, int64_t totalBytesNeeded) >@@ -1556,7 +1626,10 @@ void InjectedBundlePage::didReachApplicationCacheOriginQuota(WKSecurityOriginRef > stringBuilder.appendLiteral(" totalSpaceNeeded:~"); > stringBuilder.appendNumber(truncatedSpaceNeeded); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > if (injectedBundle.testRunner()->shouldDisallowIncreaseForApplicationCacheQuota()) >@@ -1576,7 +1649,10 @@ uint64_t InjectedBundlePage::didExceedDatabaseQuota(WKSecurityOriginRef origin, > stringBuilder.appendLiteral(" database:"); > stringBuilder.append(toWTFString(databaseName)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > uint64_t defaultQuota = 5 * 1024 * 1024; >@@ -1595,7 +1671,10 @@ uint64_t InjectedBundlePage::didExceedDatabaseQuota(WKSecurityOriginRef origin, > stringBuilder.appendLiteral("UI DELEGATE DATABASE CALLBACK: increased quota to "); > stringBuilder.appendNumber(newQuota); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > } > return newQuota; >@@ -1669,7 +1748,10 @@ bool InjectedBundlePage::shouldBeginEditing(WKBundleRangeHandleRef range) > stringBuilder.appendLiteral("EDITING DELEGATE: shouldBeginEditingInDOMRange:"); > stringBuilder.append(rangeToStr(m_page, m_world.get(), range)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1685,7 +1767,10 @@ bool InjectedBundlePage::shouldEndEditing(WKBundleRangeHandleRef range) > stringBuilder.appendLiteral("EDITING DELEGATE: shouldEndEditingInDOMRange:"); > stringBuilder.append(rangeToStr(m_page, m_world.get(), range)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1711,7 +1796,10 @@ bool InjectedBundlePage::shouldInsertNode(WKBundleNodeHandleRef node, WKBundleRa > stringBuilder.appendLiteral(" givenAction:"); > stringBuilder.append(insertactionstring[action]); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1737,7 +1825,10 @@ bool InjectedBundlePage::shouldInsertText(WKStringRef text, WKBundleRangeHandleR > stringBuilder.appendLiteral(" givenAction:"); > stringBuilder.append(insertactionstring[action]); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1753,7 +1844,10 @@ bool InjectedBundlePage::shouldDeleteRange(WKBundleRangeHandleRef range) > stringBuilder.appendLiteral("EDITING DELEGATE: shouldDeleteDOMRange:"); > stringBuilder.append(rangeToStr(m_page, m_world.get(), range)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1784,7 +1878,10 @@ bool InjectedBundlePage::shouldChangeSelectedRange(WKBundleRangeHandleRef fromRa > stringBuilder.appendLiteral(" stillSelecting:"); > stringBuilder.append(boolstring[stillSelecting]); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1802,7 +1899,10 @@ bool InjectedBundlePage::shouldApplyStyle(WKBundleCSSStyleDeclarationRef style, > stringBuilder.appendLiteral(" toElementsInDOMRange:"); > stringBuilder.append(rangeToStr(m_page, m_world.get(), range)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > return injectedBundle.testRunner()->shouldAllowEditing(); > } >@@ -1819,7 +1919,10 @@ void InjectedBundlePage::didBeginEditing(WKStringRef notificationName) > stringBuilder.appendLiteral("EDITING DELEGATE: webViewDidBeginEditing:"); > stringBuilder.append(toWTFString(notificationName)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didEndEditing(WKStringRef notificationName) >@@ -1834,7 +1937,10 @@ void InjectedBundlePage::didEndEditing(WKStringRef notificationName) > stringBuilder.appendLiteral("EDITING DELEGATE: webViewDidEndEditing:"); > stringBuilder.append(toWTFString(notificationName)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didChange(WKStringRef notificationName) >@@ -1849,7 +1955,10 @@ void InjectedBundlePage::didChange(WKStringRef notificationName) > stringBuilder.appendLiteral("EDITING DELEGATE: webViewDidChange:"); > stringBuilder.append(toWTFString(notificationName)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > void InjectedBundlePage::didChangeSelection(WKStringRef notificationName) >@@ -1864,7 +1973,10 @@ void InjectedBundlePage::didChangeSelection(WKStringRef notificationName) > stringBuilder.appendLiteral("EDITING DELEGATE: webViewDidChangeSelection:"); > stringBuilder.append(toWTFString(notificationName)); > stringBuilder.append('\n'); >- injectedBundle.outputText(stringBuilder.toString()); >+ if (auto string = stringBuilder.toString()) >+ injectedBundle.outputText(*string); >+ else >+ CRASH(); > } > > #if ENABLE(FULLSCREEN_API) >diff --git a/Tools/WebKitTestRunner/InjectedBundle/TestRunner.cpp b/Tools/WebKitTestRunner/InjectedBundle/TestRunner.cpp >index e62eb93..9268849 100644 >--- a/Tools/WebKitTestRunner/InjectedBundle/TestRunner.cpp >+++ b/Tools/WebKitTestRunner/InjectedBundle/TestRunner.cpp >@@ -1678,10 +1678,13 @@ void TestRunner::statisticsDidRunTelemetryCallback(unsigned totalPrevalentResour > stringBuilder.appendLiteral(", \"top3SubframeUnderTopFrameOrigins\" : "); > stringBuilder.appendNumber(top3SubframeUnderTopFrameOrigins); > stringBuilder.appendLiteral(" }"); >+ >+ if (auto string = stringBuilder.toString()) { >+ JSValueRef result = JSValueMakeFromJSONString(context, JSStringCreateWithUTF8CString(string->utf8().data())); > >- JSValueRef result = JSValueMakeFromJSONString(context, JSStringCreateWithUTF8CString(stringBuilder.toString().utf8().data())); >- >- callTestRunnerCallback(StatisticsDidRunTelemetryCallbackID, 1, &result); >+ callTestRunnerCallback(StatisticsDidRunTelemetryCallbackID, 1, &result); >+ } else >+ CRASH(); > } > > void TestRunner::statisticsNotifyObserver() >@@ -1891,10 +1894,13 @@ void TestRunner::callDidReceiveAllStorageAccessEntriesCallback(Vector<String>& d > stringBuilder.appendLiteral("\""); > } > stringBuilder.appendLiteral("]"); >- >- JSValueRef result = JSValueMakeFromJSONString(context, JSStringCreateWithUTF8CString(stringBuilder.toString().utf8().data())); > >- callTestRunnerCallback(AllStorageAccessEntriesCallbackID, 1, &result); >+ if (auto string = stringBuilder.toString()) { >+ JSValueRef result = JSValueMakeFromJSONString(context, JSStringCreateWithUTF8CString(string->utf8().data())); >+ >+ callTestRunnerCallback(AllStorageAccessEntriesCallbackID, 1, &result); >+ } else >+ CRASH(); > } > > #if PLATFORM(MAC) >diff --git a/Tools/WebKitTestRunner/TestController.cpp b/Tools/WebKitTestRunner/TestController.cpp >index 68c49c8..f3ba7fd 100644 >--- a/Tools/WebKitTestRunner/TestController.cpp >+++ b/Tools/WebKitTestRunner/TestController.cpp >@@ -1881,7 +1881,10 @@ WKStringRef TestController::decideDestinationWithSuggestedFilename(WKContextRef, > builder.append("Downloading URL with suggested filename \""); > builder.append(suggestedFilename); > builder.append("\"\n"); >- m_currentInvocation->outputText(builder.toString()); >+ if (auto string = builder.toString()) >+ m_currentInvocation->outputText(*string); >+ else >+ CRASH(); > } > > const char* dumpRenderTreeTemp = libraryPathForTesting(); >@@ -1911,7 +1914,10 @@ void TestController::downloadDidReceiveServerRedirectToURL(WKContextRef, WKDownl > WKRetainPtr<WKStringRef> urlStringWK = adoptWK(WKURLCopyString(url)); > builder.append(toSTD(urlStringWK).c_str()); > builder.appendLiteral("\".\n"); >- m_currentInvocation->outputText(builder.toString()); >+ if (auto string = builder.toString()) >+ m_currentInvocation->outputText(*string); >+ else >+ CRASH(); > } > } > >@@ -1934,7 +1940,10 @@ void TestController::downloadDidFail(WKContextRef, WKDownloadRef, WKErrorRef err > errorBuilder.append(toWTFString(errorDescription)); > errorBuilder.append("\n"); > >- m_currentInvocation->outputText(errorBuilder.toString()); >+ if (auto string = errorBuilder.toString()) >+ m_currentInvocation->outputText(*string); >+ else >+ CRASH(); > } > m_currentInvocation->notifyDownloadDone(); > } >diff --git a/Tools/WebKitTestRunner/TestInvocation.cpp b/Tools/WebKitTestRunner/TestInvocation.cpp >index cd5db0a..ee2f552 100644 >--- a/Tools/WebKitTestRunner/TestInvocation.cpp >+++ b/Tools/WebKitTestRunner/TestInvocation.cpp >@@ -248,9 +248,12 @@ void TestInvocation::forceRepaintDoneCallback(WKErrorRef error, void* context) > > void TestInvocation::dumpResults() > { >- if (m_textOutput.length() || !m_audioResult) >- dump(m_textOutput.toString().utf8().data()); >- else >+ if (m_textOutput.length() || !m_audioResult) { >+ if (auto string = m_textOutput.toString()) >+ dump(string->utf8().data()); >+ else >+ CRASH(); >+ } else > dumpAudio(m_audioResult.get()); > > if (m_dumpPixels) { >-- >2.9.3 >
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