Attachment 340145 Details for Bug 185375 – Separate tests for formatToParts, disabled on macOS

[patch] Separate tests for formatToParts, disabled on macOS

bug-185375-20180510173020.patch (text/plain), 71.30 KB, created by Andy VanWagoner on 2018-05-10 16:30:21 PDT

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Creator: Andy VanWagoner

Created: 2018-05-10 16:30:21 PDT

Size: 71.30 KB

patch

obsolete

>Subversion Revision: 231623
>diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog
>index 429bd8bed350b1efa159a9ec010000e0d60cbe11..6841cf7a897de5d05258b3f208d5fc671433ac25 100644
>--- a/Source/JavaScriptCore/ChangeLog
>+++ b/Source/JavaScriptCore/ChangeLog
>@@ -1,3 +1,32 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts. Implement formatToParts using
>+        unum_formatDoubleForFields. Because the fields are nested and come back
>+        in no guaranteed order, the simple algorithm to convert them to the
>+        desired format is roughly O(n^2). However, even with Number.MAX_VALUE
>+        it appears to perform well.
>+
>+        This requires ICU v59+ for unum_formatDoubleForFields, so it is disabled
>+        on macOS, since only v57 is available.
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+        * runtime/IntlNumberFormat.cpp:
>+        (JSC::IntlNumberFormat::UFieldPositionIteratorDeleter::operator() const):
>+        (JSC::IntlNumberFormat::partTypeString):
>+        (JSC::IntlNumberFormat::formatToParts):
>+        * runtime/IntlNumberFormat.h:
>+        * runtime/IntlNumberFormatPrototype.cpp:
>+        (JSC::IntlNumberFormatPrototype::create):
>+        (JSC::IntlNumberFormatPrototype::finishCreation):
>+        (JSC::IntlNumberFormatPrototypeFuncFormatToParts):
>+        * runtime/IntlNumberFormatPrototype.h:
>+        * runtime/Options.h:
>+
> 2018-05-09  Filip Pizlo  <fpizlo@apple.com>
> 
>         Speed up AbstractInterpreter::executeEdges
>diff --git a/Source/WTF/ChangeLog b/Source/WTF/ChangeLog
>index 09117e09fff39f98d27758b7f4952872c15ef4c4..9f986f1213ef8ec3729370a303690c6715ff7a50 100644
>--- a/Source/WTF/ChangeLog
>+++ b/Source/WTF/ChangeLog
>@@ -1,3 +1,14 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts.
>+
>+        * wtf/FeatureDefines.h:
>+
> 2018-05-09  Michael Catanzaro  <mcatanzaro@igalia.com>
> 
>         [WPE] Build cleanly with GCC 8 and ICU 60
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 0b3e159869ee04492c42bc9d0df0e2fd2b01c11b..badbd39c758b4dae819167a510cf894a1dd7e5b3 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,16 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Test: js/intl-numberformat-format-to-parts.html
>+
>+        Add flag & tests for NumberFormat formatToParts.
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-05-09  Chris Dumez  <cdumez@apple.com>
> 
>         Add initial support for 'Cross-Origin-Options' HTTP response header
>diff --git a/Source/WebCore/PAL/ChangeLog b/Source/WebCore/PAL/ChangeLog
>index 3dc17bba546b013a2d43f8736a01b431af15c194..c77e9cf7c9ef44b0d221d29fff8ff45265f4a573 100644
>--- a/Source/WebCore/PAL/ChangeLog
>+++ b/Source/WebCore/PAL/ChangeLog
>@@ -1,3 +1,14 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts.
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-05-08  Sihui Liu  <sihui_liu@apple.com>
> 
>         Adopt new async _savecookies SPI for keeping networking process active during flushing cookies
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index d61d891c256b5b11c08f0de8743c7915d92e2689..56ad49abcca030c6bdb8419b86a04fb9e4fda9b1 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,14 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts.
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-05-09  Tim Horton  <timothy_horton@apple.com>
> 
>         Remove the unused HAVE_OS_ACTIVITY
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index 4483a51d790859d02ca834f7c239bd5814adcfd3..a97b9d4d180246ca344494b22172a21f157f4e6a 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,14 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts.
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-05-07  Daniel Bates  <dabates@apple.com>
> 
>         Substitute CrossOriginPreflightResultCache::clear() for CrossOriginPreflightResultCache::empty()
>diff --git a/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig b/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
>index 17b66798a8437de3f4588bbcf0dc5260d92a578c..32f3e4ea0e11f3e483e4bb636e35715eddbec1cb 100644
>--- a/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
>+++ b/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
>@@ -195,6 +195,7 @@ ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS = ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS;
> ENABLE_INTERSECTION_OBSERVER = ENABLE_INTERSECTION_OBSERVER;
> 
> ENABLE_INTL = ENABLE_INTL;
>+ENABLE_INTL_NUMBER_FORMAT_TO_PARTS = ENABLE_INTL_NUMBER_FORMAT_TO_PARTS;
> ENABLE_INTL_PLURAL_RULES = ENABLE_INTL_PLURAL_RULES;
> 
> ENABLE_IOS_GESTURE_EVENTS = $(ENABLE_IOS_GESTURE_EVENTS_$(WK_COCOA_TOUCH)_WITH_INTERNAL_SDK_$(USE_INTERNAL_SDK));
>@@ -383,4 +384,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/JavaScriptCore/runtime/IntlNumberFormat.cpp b/Source/JavaScriptCore/runtime/IntlNumberFormat.cpp
>index 185ac368d17330fffa587c6612dfbdd219ffcba0..932498107e4ab4f3c65f3f4ad07282539ee5138d 100644
>--- a/Source/JavaScriptCore/runtime/IntlNumberFormat.cpp
>+++ b/Source/JavaScriptCore/runtime/IntlNumberFormat.cpp
>@@ -38,6 +38,10 @@
> #include "JSCInlines.h"
> #include "ObjectConstructor.h"
> 
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+#include <unicode/ufieldpositer.h>
>+#endif
>+
> namespace JSC {
> 
> const ClassInfo IntlNumberFormat::s_info = { "Object", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(IntlNumberFormat) };
>@@ -517,6 +521,127 @@ void IntlNumberFormat::setBoundFormat(VM& vm, JSBoundFunction* format)
>     m_boundFormat.set(vm, this, format);
> }
> 
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+void IntlNumberFormat::UFieldPositionIteratorDeleter::operator()(UFieldPositionIterator* iterator) const
>+{
>+    if (iterator)
>+        ufieldpositer_close(iterator);
>+}
>+
>+const char* IntlNumberFormat::partTypeString(UNumberFormatFields field, double value)
>+{
>+    switch (field) {
>+    case UNUM_INTEGER_FIELD:
>+        if (std::isnan(value))
>+            return "nan";
>+        if (!std::isfinite(value))
>+            return "infinity";
>+        return "integer";
>+    case UNUM_FRACTION_FIELD:
>+        return "fraction";
>+    case UNUM_DECIMAL_SEPARATOR_FIELD:
>+        return "decimal";
>+    case UNUM_GROUPING_SEPARATOR_FIELD:
>+        return "group";
>+    case UNUM_CURRENCY_FIELD:
>+        return "currency";
>+    case UNUM_PERCENT_FIELD:
>+        return "percentSign";
>+    case UNUM_SIGN_FIELD:
>+        return value < 0 ? "minusSign" : "plusSign";
>+    // These should not show up because there is no way to specify them in NumberFormat options.
>+    // If they do, they don't fit well into any of known part types, so consider it a "literal".
>+    case UNUM_PERMILL_FIELD:
>+    case UNUM_EXPONENT_SYMBOL_FIELD:
>+    case UNUM_EXPONENT_SIGN_FIELD:
>+    case UNUM_EXPONENT_FIELD:
>+#if !defined(U_HIDE_DEPRECATED_API)
>+    case UNUM_FIELD_COUNT:
>+#endif
>+        return "literal";
>+    }
>+    // Any newer additions to the UNumberFormatFields enum should just be considered a "literal" part.
>+    return "literal";
>+}
>+
>+JSValue IntlNumberFormat::formatToParts(ExecState& exec, double value)
>+{
>+    VM& vm = exec.vm();
>+    auto scope = DECLARE_THROW_SCOPE(vm);
>+
>+    // FormatNumberToParts (ECMA-402)
>+    // https://tc39.github.io/ecma402/#sec-formatnumbertoparts
>+    // https://tc39.github.io/ecma402/#sec-partitionnumberpattern
>+
>+    if (!m_numberFormat)
>+        createNumberFormat(exec);
>+    if (!m_initializedNumberFormat || !m_numberFormat)
>+        return throwTypeError(&exec, scope, ASCIILiteral("Intl.NumberFormat.prototype.formatToParts called on value that's not an object initialized as a NumberFormat"));
>+
>+    UErrorCode status = U_ZERO_ERROR;
>+    auto fieldItr = std::unique_ptr<UFieldPositionIterator, UFieldPositionIteratorDeleter>(ufieldpositer_open(&status));
>+    if (U_FAILURE(status))
>+        return throwTypeError(&exec, scope, ASCIILiteral("failed to open field position iterator"));
>+
>+    status = U_ZERO_ERROR;
>+    Vector<UChar, 32> result(32);
>+    auto resultLength = unum_formatDoubleForFields(m_numberFormat.get(), value, result.data(), result.size(), fieldItr.get(), &status);
>+    if (status == U_BUFFER_OVERFLOW_ERROR) {
>+        status = U_ZERO_ERROR;
>+        result.grow(resultLength);
>+        unum_formatDoubleForFields(m_numberFormat.get(), value, result.data(), resultLength, fieldItr.get(), &status);
>+    }
>+    if (U_FAILURE(status))
>+        return throwTypeError(&exec, scope, ASCIILiteral("failed to format a number."));
>+
>+    Vector<IntlNumberFormatField> fields;
>+    int32_t beginIndex = 0;
>+    int32_t endIndex = 0;
>+    auto fieldType = ufieldpositer_next(fieldItr.get(), &beginIndex, &endIndex);
>+    while (fieldType >= 0) {
>+        IntlNumberFormatField field;
>+        field.type = UNumberFormatFields(fieldType);
>+        field.beginIndex = beginIndex;
>+        field.endIndex = endIndex;
>+        fields.append(field);
>+        fieldType = ufieldpositer_next(fieldItr.get(), &beginIndex, &endIndex);
>+    }
>+
>+    JSGlobalObject* globalObject = exec.jsCallee()->globalObject();
>+    JSArray* parts = JSArray::tryCreate(vm, globalObject->arrayStructureForIndexingTypeDuringAllocation(ArrayWithContiguous), 0);
>+    if (!parts)
>+        return throwOutOfMemoryError(&exec, scope);
>+
>+    auto resultString = String(result.data(), resultLength);
>+    auto typePropertyName = Identifier::fromString(&vm, "type");
>+    auto literalString = jsString(&exec, ASCIILiteral("literal"));
>+
>+    int32_t currentIndex = 0;
>+    while (currentIndex < resultLength) {
>+        IntlNumberFormatField field;
>+        int32_t nextStartIndex = resultLength;
>+        for (const auto &candidate : fields) {
>+            if (candidate.beginIndex <= currentIndex && currentIndex < candidate.endIndex && (!field.size() || candidate.size() < field.size()))
>+                field = candidate;
>+            if (currentIndex < candidate.beginIndex && candidate.beginIndex < nextStartIndex)
>+                nextStartIndex = candidate.beginIndex;
>+        }
>+        auto nextIndex = field.size() ? std::min(field.endIndex, nextStartIndex) : nextStartIndex;
>+        auto type = field.size() ? jsString(&exec, partTypeString(field.type, value)) : literalString;
>+        auto value = jsString(&exec, resultString.substring(currentIndex, nextIndex - currentIndex));
>+        JSObject* part = constructEmptyObject(&exec);
>+        part->putDirect(vm, typePropertyName, type);
>+        part->putDirect(vm, vm.propertyNames->value, value);
>+        parts->push(&exec, part);
>+        RETURN_IF_EXCEPTION(scope, { });
>+        currentIndex = nextIndex;
>+    }
>+
>+
>+    return parts;
>+}
>+#endif
>+
> } // namespace JSC
> 
> #endif // ENABLE(INTL)
>diff --git a/Source/JavaScriptCore/runtime/IntlNumberFormat.h b/Source/JavaScriptCore/runtime/IntlNumberFormat.h
>index a0e96b08ab9cc41d09fb56fc5a0d7cc16c7be0ff..a46ce9b34a3c784d5073aea98f2d859f3bd47629 100644
>--- a/Source/JavaScriptCore/runtime/IntlNumberFormat.h
>+++ b/Source/JavaScriptCore/runtime/IntlNumberFormat.h
>@@ -29,6 +29,9 @@
> 
> #include "JSDestructibleObject.h"
> #include <unicode/unum.h>
>+#include <unicode/uvernum.h>
>+
>+#define JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS (U_ICU_VERSION_MAJOR_NUM >= 59)
> 
> namespace JSC {
> 
>@@ -46,6 +49,9 @@ public:
> 
>     void initializeNumberFormat(ExecState&, JSValue locales, JSValue optionsValue);
>     JSValue formatNumber(ExecState&, double number);
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+    JSValue formatToParts(ExecState&, double value);
>+#endif
>     JSObject* resolvedOptions(ExecState&);
> 
>     JSBoundFunction* boundFormat() const { return m_boundFormat.get(); }
>@@ -83,6 +89,24 @@ private:
>     WriteBarrier<JSBoundFunction> m_boundFormat;
>     bool m_useGrouping { true };
>     bool m_initializedNumberFormat { false };
>+
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+    struct UFieldPositionIteratorDeleter {
>+        void operator()(UFieldPositionIterator*) const;
>+    };
>+
>+    struct IntlNumberFormatField {
>+        UNumberFormatFields type;
>+        int32_t beginIndex { 0 };
>+        int32_t endIndex { 0 };
>+        int32_t size() const
>+        {
>+            return endIndex - beginIndex;
>+        };
>+    };
>+
>+    static const char* partTypeString(UNumberFormatFields, double);
>+#endif
> };
> 
> } // namespace JSC
>diff --git a/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.cpp b/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.cpp
>index 5cf177d647f850141d7c1b9373292a09089633b5..c1df693a47e59a32f022abdb045aa65620989911 100644
>--- a/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.cpp
>+++ b/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.cpp
>@@ -35,10 +35,14 @@
> #include "JSBoundFunction.h"
> #include "JSCInlines.h"
> #include "JSObjectInlines.h"
>+#include "Options.h"
> 
> namespace JSC {
> 
> static EncodedJSValue JSC_HOST_CALL IntlNumberFormatPrototypeGetterFormat(ExecState*);
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+static EncodedJSValue JSC_HOST_CALL IntlNumberFormatPrototypeFuncFormatToParts(ExecState*);
>+#endif
> static EncodedJSValue JSC_HOST_CALL IntlNumberFormatPrototypeFuncResolvedOptions(ExecState*);
> 
> }
>@@ -56,10 +60,10 @@ const ClassInfo IntlNumberFormatPrototype::s_info = { "Object", &Base::s_info, &
> @end
> */
> 
>-IntlNumberFormatPrototype* IntlNumberFormatPrototype::create(VM& vm, JSGlobalObject*, Structure* structure)
>+IntlNumberFormatPrototype* IntlNumberFormatPrototype::create(VM& vm, JSGlobalObject* globalObject, Structure* structure)
> {
>     IntlNumberFormatPrototype* object = new (NotNull, allocateCell<IntlNumberFormatPrototype>(vm.heap)) IntlNumberFormatPrototype(vm, structure);
>-    object->finishCreation(vm, structure);
>+    object->finishCreation(vm, globalObject, structure);
>     return object;
> }
> 
>@@ -73,9 +77,17 @@ IntlNumberFormatPrototype::IntlNumberFormatPrototype(VM& vm, Structure* structur
> {
> }
> 
>-void IntlNumberFormatPrototype::finishCreation(VM& vm, Structure*)
>+void IntlNumberFormatPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject, Structure*)
> {
>     Base::finishCreation(vm);
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+    if (Options::useIntlNumberFormatToParts()) {
>+        JSFunction* formatToPartsFunction = JSFunction::create(vm, globalObject, 1, vm.propertyNames->formatToParts.string(), IntlNumberFormatPrototypeFuncFormatToParts);
>+        putDirectWithoutTransition(vm, vm.propertyNames->formatToParts, formatToPartsFunction, static_cast<unsigned>(PropertyAttribute::DontEnum));
>+    }
>+#else
>+    UNUSED_PARAM(globalObject);
>+#endif
> }
> 
> static EncodedJSValue JSC_HOST_CALL IntlNumberFormatFuncFormatNumber(ExecState* state)
>@@ -135,6 +147,27 @@ EncodedJSValue JSC_HOST_CALL IntlNumberFormatPrototypeGetterFormat(ExecState* st
>     return JSValue::encode(boundFormat);
> }
> 
>+#if JSC_ICU_HAS_FORMAT_DOUBLE_FOR_FIELDS
>+EncodedJSValue JSC_HOST_CALL IntlNumberFormatPrototypeFuncFormatToParts(ExecState* state)
>+{
>+    VM& vm = state->vm();
>+    auto scope = DECLARE_THROW_SCOPE(vm);
>+
>+    // Intl.NumberFormat.prototype.formatToParts (ECMA-402)
>+    // https://tc39.github.io/ecma402/#sec-intl.numberformat.prototype.formattoparts
>+
>+    IntlNumberFormat* numberFormat = jsDynamicCast<IntlNumberFormat*>(vm, state->thisValue());
>+    if (!numberFormat)
>+        return JSValue::encode(throwTypeError(state, scope, ASCIILiteral("Intl.NumberFormat.prototype.formatToParts called on value that's not an object initialized as a NumberFormat")));
>+
>+    double value = state->argument(0).toNumber(state);
>+    RETURN_IF_EXCEPTION(scope, encodedJSValue());
>+
>+    scope.release();
>+    return JSValue::encode(numberFormat->formatToParts(*state, value));
>+}
>+#endif
>+
> EncodedJSValue JSC_HOST_CALL IntlNumberFormatPrototypeFuncResolvedOptions(ExecState* state)
> {
>     VM& vm = state->vm();
>diff --git a/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.h b/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.h
>index aa1e5e6e0d0bdaa0a94bbd902461b90aa71076da..c557e6964ff99d0f242df85653ddfa099fb27c0a 100644
>--- a/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.h
>+++ b/Source/JavaScriptCore/runtime/IntlNumberFormatPrototype.h
>@@ -42,7 +42,7 @@ public:
>     DECLARE_INFO;
> 
> protected:
>-    void finishCreation(VM&, Structure*);
>+    void finishCreation(VM&, JSGlobalObject*, Structure*);
> 
> private:
>     IntlNumberFormatPrototype(VM&, Structure*);
>diff --git a/Source/JavaScriptCore/runtime/Options.h b/Source/JavaScriptCore/runtime/Options.h
>index ee18e2187baa7622520d2c8904dd903c08a2f2ce..555d4ca674c61c9a90487dc09716e592276974d6 100644
>--- a/Source/JavaScriptCore/runtime/Options.h
>+++ b/Source/JavaScriptCore/runtime/Options.h
>@@ -112,6 +112,12 @@ constexpr bool enableAsyncIteration = true;
> constexpr bool enableAsyncIteration = false;
> #endif
> 
>+#if ENABLE(INTL_NUMBER_FORMAT_TO_PARTS)
>+constexpr bool enableIntlNumberFormatToParts = true;
>+#else
>+constexpr bool enableIntlNumberFormatToParts = false;
>+#endif
>+
> #if ENABLE(INTL_PLURAL_RULES)
> constexpr bool enableIntlPluralRules = true;
> #else
>@@ -499,6 +505,7 @@ constexpr bool enableWebAssemblyStreamingApi = false;
>     v(bool, useEagerWebAssemblyModuleHashing, false, Normal, "Unnamed WebAssembly modules are identified in backtraces through their hash, if available.") \
>     v(bool, useObjectRestSpread, true, Normal, "If true, we will enable Object Rest/Spread feature.") \
>     v(bool, useBigInt, false, Normal, "If true, we will enable BigInt support.") \
>+    v(bool, useIntlNumberFormatToParts, enableIntlNumberFormatToParts, Normal, "If true, we will enable Intl.NumberFormat.prototype.formatToParts") \
>     v(bool, useIntlPluralRules, enableIntlPluralRules, Normal, "If true, we will enable Intl.PluralRules.") \
>     v(bool, useArrayAllocationProfiling, true, Normal, "If true, we will use our normal array allocation profiling. If false, the allocation profile will always claim to be undecided.")\
>     v(bool, forcePolyProto, false, Normal, "If true, create_this will always create an object with a poly proto structure.")
>diff --git a/Source/WTF/wtf/FeatureDefines.h b/Source/WTF/wtf/FeatureDefines.h
>index cb4c593b424190d52a04600ee5d3a23863ce17d5..135eaa240ad1e296683445b10ec7feb73744dcea 100644
>--- a/Source/WTF/wtf/FeatureDefines.h
>+++ b/Source/WTF/wtf/FeatureDefines.h
>@@ -496,6 +496,10 @@ the public iOS SDK. See <https://webkit.org/b/179167>. */
> #define ENABLE_INTL 0
> #endif
> 
>+#if !defined(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS)
>+#define ENABLE_INTL_NUMBER_FORMAT_TO_PARTS 0
>+#endif
>+
> #if !defined(ENABLE_INTL_PLURAL_RULES)
> #define ENABLE_INTL_PLURAL_RULES 0
> #endif
>diff --git a/Source/WebCore/Configurations/FeatureDefines.xcconfig b/Source/WebCore/Configurations/FeatureDefines.xcconfig
>index 17b66798a8437de3f4588bbcf0dc5260d92a578c..32f3e4ea0e11f3e483e4bb636e35715eddbec1cb 100644
>--- a/Source/WebCore/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebCore/Configurations/FeatureDefines.xcconfig
>@@ -195,6 +195,7 @@ ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS = ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS;
> ENABLE_INTERSECTION_OBSERVER = ENABLE_INTERSECTION_OBSERVER;
> 
> ENABLE_INTL = ENABLE_INTL;
>+ENABLE_INTL_NUMBER_FORMAT_TO_PARTS = ENABLE_INTL_NUMBER_FORMAT_TO_PARTS;
> ENABLE_INTL_PLURAL_RULES = ENABLE_INTL_PLURAL_RULES;
> 
> ENABLE_IOS_GESTURE_EVENTS = $(ENABLE_IOS_GESTURE_EVENTS_$(WK_COCOA_TOUCH)_WITH_INTERNAL_SDK_$(USE_INTERNAL_SDK));
>@@ -383,4 +384,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig b/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig
>index 17b66798a8437de3f4588bbcf0dc5260d92a578c..32f3e4ea0e11f3e483e4bb636e35715eddbec1cb 100644
>--- a/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig
>@@ -195,6 +195,7 @@ ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS = ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS;
> ENABLE_INTERSECTION_OBSERVER = ENABLE_INTERSECTION_OBSERVER;
> 
> ENABLE_INTL = ENABLE_INTL;
>+ENABLE_INTL_NUMBER_FORMAT_TO_PARTS = ENABLE_INTL_NUMBER_FORMAT_TO_PARTS;
> ENABLE_INTL_PLURAL_RULES = ENABLE_INTL_PLURAL_RULES;
> 
> ENABLE_IOS_GESTURE_EVENTS = $(ENABLE_IOS_GESTURE_EVENTS_$(WK_COCOA_TOUCH)_WITH_INTERNAL_SDK_$(USE_INTERNAL_SDK));
>@@ -383,4 +384,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebKit/Configurations/FeatureDefines.xcconfig b/Source/WebKit/Configurations/FeatureDefines.xcconfig
>index 17b66798a8437de3f4588bbcf0dc5260d92a578c..32f3e4ea0e11f3e483e4bb636e35715eddbec1cb 100644
>--- a/Source/WebKit/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebKit/Configurations/FeatureDefines.xcconfig
>@@ -195,6 +195,7 @@ ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS = ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS;
> ENABLE_INTERSECTION_OBSERVER = ENABLE_INTERSECTION_OBSERVER;
> 
> ENABLE_INTL = ENABLE_INTL;
>+ENABLE_INTL_NUMBER_FORMAT_TO_PARTS = ENABLE_INTL_NUMBER_FORMAT_TO_PARTS;
> ENABLE_INTL_PLURAL_RULES = ENABLE_INTL_PLURAL_RULES;
> 
> ENABLE_IOS_GESTURE_EVENTS = $(ENABLE_IOS_GESTURE_EVENTS_$(WK_COCOA_TOUCH)_WITH_INTERNAL_SDK_$(USE_INTERNAL_SDK));
>@@ -383,4 +384,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig b/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig
>index 17b66798a8437de3f4588bbcf0dc5260d92a578c..32f3e4ea0e11f3e483e4bb636e35715eddbec1cb 100644
>--- a/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig
>@@ -195,6 +195,7 @@ ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS = ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS;
> ENABLE_INTERSECTION_OBSERVER = ENABLE_INTERSECTION_OBSERVER;
> 
> ENABLE_INTL = ENABLE_INTL;
>+ENABLE_INTL_NUMBER_FORMAT_TO_PARTS = ENABLE_INTL_NUMBER_FORMAT_TO_PARTS;
> ENABLE_INTL_PLURAL_RULES = ENABLE_INTL_PLURAL_RULES;
> 
> ENABLE_IOS_GESTURE_EVENTS = $(ENABLE_IOS_GESTURE_EVENTS_$(WK_COCOA_TOUCH)_WITH_INTERNAL_SDK_$(USE_INTERNAL_SDK));
>@@ -383,4 +384,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/cmake/WebKitFeatures.cmake b/Source/cmake/WebKitFeatures.cmake
>index 0bbbd1fe2bcc7c4cd42a0dc706356d41a5f4d057..481b9783bd7901dc494da89a8d16040bd0406b85 100644
>--- a/Source/cmake/WebKitFeatures.cmake
>+++ b/Source/cmake/WebKitFeatures.cmake
>@@ -125,6 +125,7 @@ macro(WEBKIT_OPTION_BEGIN)
>     WEBKIT_OPTION_DEFINE(ENABLE_INPUT_TYPE_WEEK "Toggle week type <input> support" PRIVATE OFF)
>     WEBKIT_OPTION_DEFINE(ENABLE_INTERSECTION_OBSERVER "Enable Intersection Observer support" PRIVATE ON)
>     WEBKIT_OPTION_DEFINE(ENABLE_INTL "Toggle Intl support" PRIVATE ON)
>+    WEBKIT_OPTION_DEFINE(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS "Toggle Intl.NumberFormat.prototype.formatToParts support" PRIVATE OFF)
>     WEBKIT_OPTION_DEFINE(ENABLE_INTL_PLURAL_RULES "Toggle Intl.PluralRules support" PRIVATE OFF)
>     WEBKIT_OPTION_DEFINE(ENABLE_IOS_AIRPLAY "Toggle iOS airplay support" PRIVATE OFF)
>     WEBKIT_OPTION_DEFINE(ENABLE_JIT "Enable JustInTime javascript support" PRIVATE ON)
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 8b8bd72bc75d89ab15e581fe490d6989e1f8fca5..03b7df2d1a81922f22dc9608bd7dd2830602a67a 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts.
>+
>+        * Scripts/webkitperl/FeatureList.pm:
>+        * TestWebKitAPI/Configurations/FeatureDefines.xcconfig:
>+
> 2018-05-09  Sihui Liu  <sihui_liu@apple.com>
> 
>         Update WebKit.WebsiteDataStoreCustomPaths after r231536
>diff --git a/Tools/Scripts/webkitperl/FeatureList.pm b/Tools/Scripts/webkitperl/FeatureList.pm
>index 3016b5bbcfcc6a08b15bd6b4887cbd787d85d010..0f138b37356ed188b43bf84b3bdd1eb1dd933cda 100644
>--- a/Tools/Scripts/webkitperl/FeatureList.pm
>+++ b/Tools/Scripts/webkitperl/FeatureList.pm
>@@ -91,6 +91,7 @@ my (
>     $inputTypeTimeSupport,
>     $inputTypeWeekSupport,
>     $intlSupport,
>+    $intlNumberFormatToPartsSupport,
>     $intlPluralRulesSupport,
>     $jitSupport,
>     $legacyEncryptedMediaSupport,
>@@ -263,6 +264,9 @@ my @features = (
>     { option => "intl", desc => "Toggle Intl support",
>       define => "ENABLE_INTL", value => \$intlSupport },
> 
>+    { option => "intlNumberFormatToParts", desc => "Toggle Intl.NumberFormat.prototype.formatToParts support",
>+      define => "ENABLE_INTL_NUMBER_FORMAT_TO_PARTS", value => \$intlNumberFormatToPartsSupport },
>+
>     { option => "intlPluralRules", desc => "Toggle Intl.PluralRules support",
>       define => "ENABLE_INTL_PLURAL_RULES", value => \$intlPluralRulesSupport },
> 
>diff --git a/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig b/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig
>index 17b66798a8437de3f4588bbcf0dc5260d92a578c..32f3e4ea0e11f3e483e4bb636e35715eddbec1cb 100644
>--- a/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig
>+++ b/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig
>@@ -195,6 +195,7 @@ ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS = ENABLE_INSPECTOR_ALTERNATE_DISPATCHERS;
> ENABLE_INTERSECTION_OBSERVER = ENABLE_INTERSECTION_OBSERVER;
> 
> ENABLE_INTL = ENABLE_INTL;
>+ENABLE_INTL_NUMBER_FORMAT_TO_PARTS = ENABLE_INTL_NUMBER_FORMAT_TO_PARTS;
> ENABLE_INTL_PLURAL_RULES = ENABLE_INTL_PLURAL_RULES;
> 
> ENABLE_IOS_GESTURE_EVENTS = $(ENABLE_IOS_GESTURE_EVENTS_$(WK_COCOA_TOUCH)_WITH_INTERNAL_SDK_$(USE_INTERNAL_SDK));
>@@ -383,4 +384,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXTRA_ZOOM_MODE) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_COLOR_POPOVER) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_INTL_NUMBER_FORMAT_TO_PARTS) $(ENABLE_INTL_PLURAL_RULES) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MINIMAL_SIMULATOR) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 7fcb6988b886d270434b3c78cdd39034c42425d0..0a3a3dbce1b7caf0133452c03356848ca332fadb 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,18 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add tests for NumberFormat formatToParts. Tests are expected to fail on
>+        macOS until ICU is updated to v59 or newer.
>+
>+        * js/intl-numberformat-format-to-parts-expected.txt: Added.
>+        * js/intl-numberformat-format-to-parts.html: Added.
>+        * js/script-tests/intl-numberformat-format-to-parts.js: Added.
>+        * platform/mac/TestExpectations:
>+
> 2018-05-09  Chris Dumez  <cdumez@apple.com>
> 
>         Add initial support for 'Cross-Origin-Options' HTTP response header
>diff --git a/LayoutTests/js/intl-numberformat-format-to-parts-expected.txt b/LayoutTests/js/intl-numberformat-format-to-parts-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..71a8624c9707ef80068165be313255d0c49ef9bd
>--- /dev/null
>+++ b/LayoutTests/js/intl-numberformat-format-to-parts-expected.txt
>@@ -0,0 +1,50 @@
>+This test checks the behavior of Intl.NumberFormat.prototype.formatToParts as described in the ECMAScript Internationalization API Specification.
>+
>+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
>+
>+
>+PASS Intl.NumberFormat.prototype.formatToParts is an instance of Function
>+PASS Intl.NumberFormat.prototype.formatToParts.length is 1
>+PASS Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').writable is true
>+PASS Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').enumerable is false
>+PASS Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').configurable is true
>+PASS Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').get is undefined
>+PASS Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').set is undefined
>+PASS JSON.stringify(Intl.NumberFormat('en').formatToParts(-Infinity)) is JSON.stringify([
>+  {type:"minusSign",value:"-"},
>+  {type:"infinity",value:"â"}
>+])
>+PASS JSON.stringify(Intl.NumberFormat('en').formatToParts('one')) is JSON.stringify([
>+  {type:"nan",value:"NaN"}
>+])
>+PASS JSON.stringify(Intl.NumberFormat('en-US', {style:'percent'}).formatToParts(1)) is JSON.stringify([
>+  {type:"integer",value:"100"},
>+  {type:"percentSign",value:"%"}
>+])
>+PASS JSON.stringify(
>+  Intl.NumberFormat("pt-BR-u-nu-fullwide", {
>+    minimumFractionDigits: "3", style: "currency", currency: "USD", currencyDisplay: "name"
>+  }).formatToParts(21069933563725.1)
>+) is JSON.stringify([
>+  {type:"integer",value:"ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"decimal",value:","},
>+  {type:"fraction",value:"ï¼ï¼ï¼"},
>+  {type:"literal",value:" "},
>+  {type:"currency",value:"DÃ³lares americanos"},
>+])
>+PASS +Intl.NumberFormat('en-US', { useGrouping: false }).formatToParts(Number.MAX_SAFE_INTEGER)[0].value is Number.MAX_SAFE_INTEGER
>+PASS Intl.NumberFormat('en-US', { useGrouping: false }).formatToParts(Number.MAX_VALUE).length is 1
>+PASS Intl.NumberFormat('en-US', { useGrouping: false }).formatToParts(Number.MAX_VALUE)[0].value.length is 309
>+PASS Intl.NumberFormat('en-US').formatToParts(Number.MAX_VALUE).length is 205
>+PASS successfullyParsed is true
>+
>+TEST COMPLETE
>+
>diff --git a/LayoutTests/js/intl-numberformat-format-to-parts.html b/LayoutTests/js/intl-numberformat-format-to-parts.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2c4930747452c89799d947610139a942d57946f3
>--- /dev/null
>+++ b/LayoutTests/js/intl-numberformat-format-to-parts.html
>@@ -0,0 +1,11 @@
>+<!doctype html>
>+<html>
>+<head>
>+<meta charset="utf-8">
>+<script src="../resources/js-test-pre.js"></script>
>+</head>
>+<body>
>+<script src="script-tests/intl-numberformat-format-to-parts.js"></script>
>+<script src="../resources/js-test-post.js"></script>
>+</body>
>+</html>
>diff --git a/LayoutTests/js/script-tests/intl-numberformat-format-to-parts.js b/LayoutTests/js/script-tests/intl-numberformat-format-to-parts.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..56e2a4915beee36b9726317775c5a9a5fdd5a202
>--- /dev/null
>+++ b/LayoutTests/js/script-tests/intl-numberformat-format-to-parts.js
>@@ -0,0 +1,53 @@
>+//@ skip if $hostOS == "windows"
>+description("This test checks the behavior of Intl.NumberFormat.prototype.formatToParts as described in the ECMAScript Internationalization API Specification.");
>+
>+shouldBeType("Intl.NumberFormat.prototype.formatToParts", "Function");
>+shouldBe("Intl.NumberFormat.prototype.formatToParts.length", "1");
>+shouldBeTrue("Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').writable");
>+shouldBeFalse("Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').enumerable");
>+shouldBeTrue("Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').configurable");
>+shouldBe("Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').get", "undefined");
>+shouldBe("Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, 'formatToParts').set", "undefined");
>+
>+// Handles non-finite and non-number
>+shouldBe("JSON.stringify(Intl.NumberFormat('en').formatToParts(-Infinity))", `JSON.stringify([
>+  {type:"minusSign",value:"-"},
>+  {type:"infinity",value:"â"}
>+])`);
>+shouldBe("JSON.stringify(Intl.NumberFormat('en').formatToParts('one'))", `JSON.stringify([
>+  {type:"nan",value:"NaN"}
>+])`);
>+
>+// Handles percents
>+shouldBe("JSON.stringify(Intl.NumberFormat('en-US', {style:'percent'}).formatToParts(1))", `JSON.stringify([
>+  {type:"integer",value:"100"},
>+  {type:"percentSign",value:"%"}
>+])`);
>+
>+// Handles locale, currency, and number system
>+shouldBe(`JSON.stringify(
>+  Intl.NumberFormat("pt-BR-u-nu-fullwide", {
>+    minimumFractionDigits: "3", style: "currency", currency: "USD", currencyDisplay: "name"
>+  }).formatToParts(21069933563725.1)
>+)`, `JSON.stringify([
>+  {type:"integer",value:"ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"group",value:"."},
>+  {type:"integer",value:"ï¼ï¼ï¼"},
>+  {type:"decimal",value:","},
>+  {type:"fraction",value:"ï¼ï¼ï¼"},
>+  {type:"literal",value:" "},
>+  {type:"currency",value:"DÃ³lares americanos"},
>+])`);
>+
>+shouldBe("+Intl.NumberFormat('en-US', { useGrouping: false }).formatToParts(Number.MAX_SAFE_INTEGER)[0].value", "Number.MAX_SAFE_INTEGER");
>+
>+// Exceed the 32 character default buffer size
>+shouldBe("Intl.NumberFormat('en-US', { useGrouping: false }).formatToParts(Number.MAX_VALUE).length", "1");
>+shouldBe("Intl.NumberFormat('en-US', { useGrouping: false }).formatToParts(Number.MAX_VALUE)[0].value.length", "309");
>+shouldBe("Intl.NumberFormat('en-US').formatToParts(Number.MAX_VALUE).length", "205");
>diff --git a/LayoutTests/platform/mac/TestExpectations b/LayoutTests/platform/mac/TestExpectations
>index 7341bb4220819fe0545b32ed1370977dff134cd0..9ec3381827945ff209fe30992323fdb304308bd9 100644
>--- a/LayoutTests/platform/mac/TestExpectations
>+++ b/LayoutTests/platform/mac/TestExpectations
>@@ -1762,4 +1762,6 @@ webkit.org/b/184457 media/video-aspect-ratio.html [ Pass Failure ]
> 
> webkit.org/b/184609 platform/mac/media/audio-session-category-video-track-change.html [ Pass Failure ]
> 
>-webkit.org/b/170830 inspector/sampling-profiler/named-function-expression.html [ Pass Failure ]
>\ No newline at end of file
>+webkit.org/b/170830 inspector/sampling-profiler/named-function-expression.html [ Pass Failure ]
>+
>+webkit.org/b/185375 js/intl-numberformat-format-to-parts.html [ Failure ]
>\ No newline at end of file
>diff --git a/ChangeLog b/ChangeLog
>index e2e04d1a41983e368552924d578786d59ac46744..e7dba3d8ddc1689baaf67b3418033de226031932 100644
>--- a/ChangeLog
>+++ b/ChangeLog
>@@ -1,3 +1,14 @@
>+2018-05-10  Andy VanWagoner  <andy@vanwagoner.family>
>+
>+        Add support for Intl NumberFormat formatToParts
>+        https://bugs.webkit.org/show_bug.cgi?id=185375
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add flag for NumberFormat formatToParts.
>+
>+        * Source/cmake/WebKitFeatures.cmake:
>+
> 2018-05-09  Michael Catanzaro  <mcatanzaro@igalia.com>
> 
>         Unreviewed. Bump WPE soname for good measure.

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Attachments on bug 185375: 340092 | 340094 | 340101 | 340102 | 340108 | 340110 | 340145 | 340155 | 340158 | 340166 | 340176 | 340183 | 340191 | 340194 | 340216 | 340328 | 340337 | 340418 | 340516