142872 2015-03-19 12:19:17 -0700 [Content Extensions] Test regular expression parse failures 2015-03-19 15:39:04 -0700 1 1 1 Unclassified WebKit WebCore Misc. 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 achristensen achristensen benjamin oldest_to_newest 1078580 0 achristensen 2015-03-19 12:19:17 -0700 I made things I think can never happen into assertions. I had some questions, though. They're in the first patch. 1078588 1 249048 achristensen 2015-03-19 12:25:02 -0700 Created attachment 249048 Patch 1078637 2 249048 benjamin 2015-03-19 14:35:47 -0700 Comment on attachment 249048 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=249048&action=review > Source/WebCore/contentextensions/URLFilterParser.cpp:481 > + ASSERT(m_openGroups.isEmpty()); > + ASSERT(m_subtreeStart != m_subtreeEnd); Let's make them into ASSERT_WITH_MESSAGE to say why they should not happen. > Source/WebCore/contentextensions/URLFilterParser.cpp:527 > - if (!m_floatingTerm.isValid()) > - fail(URLFilterParser::MisplacedQuantifier); > + ASSERT(m_floatingTerm.isValid()); Wouldn't this happen with greedy quantifiers? > Source/WebCore/contentextensions/URLFilterParser.cpp:-727 > - ASSERT(!pattern.isEmpty()); > - Those are no longer excluded by the JSON parser? > Source/WebCore/contentextensions/URLFilterParser.h:44 > enum ParseStatus { This thing is really weird. > Tools/TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp:355 > + testPatternStatus("(?!)", ContentExtensions::URLFilterParser::ParseStatus::Group); > + testPatternStatus("(?=)", ContentExtensions::URLFilterParser::ParseStatus::Group); Please also test that those two produce errors with a non-empty term inside. > Tools/TestWebKitAPI/Tests/WebCore/ContentExtensions.cpp:370 > + // I think these should all be YarrErrors, but they're not. Should we do something about this? What the heck. I have no explanation. 1078653 3 249048 achristensen 2015-03-19 15:38:44 -0700 Comment on attachment 249048 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=249048&action=review >> Source/WebCore/contentextensions/URLFilterParser.cpp:527 >> + ASSERT(m_floatingTerm.isValid()); > > Wouldn't this happen with greedy quantifiers? I'm adding .*a and .*?a, but they do not hit this assert. >> Source/WebCore/contentextensions/URLFilterParser.cpp:-727 >> - > > Those are no longer excluded by the JSON parser? I added a test case that tests an empty string. They probably are excluded by the JSON parser, but the following if statement will catch them. 1078654 4 achristensen 2015-03-19 15:39:04 -0700 https://trac.webkit.org/r181762 249048 2015-03-19 12:25:02 -0700 2015-03-19 14:35:47 -0700 Patch bug-142872-20150319122429.patch text/plain 9363 achristensen SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDE4MTc1MikKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE4IEBACisyMDE1LTAzLTE5ICBBbGV4IENo cmlzdGVuc2VuICA8YWNocmlzdGVuc2VuQHdlYmtpdC5vcmc+CisKKyAgICAgICAgW0NvbnRlbnQg RXh0ZW5zaW9uc10gVGVzdCByZWd1bGFyIGV4cHJlc3Npb24gcGFyc2UgZmFpbHVyZXMuCisgICAg ICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xNDI4NzIKKworICAg ICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICAqIGNvbnRlbnRleHRl bnNpb25zL1VSTEZpbHRlclBhcnNlci5jcHA6CisgICAgICAgIChXZWJDb3JlOjpDb250ZW50RXh0 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