[webkit-changes] [WebKit/WebKit] 1832ad: Move fast character comparison functions from Java...

[Chris Dumez]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 1832ad030f7dcd00a47615aaacc78cd351066f6f
      https://github.com/WebKit/WebKit/commit/1832ad030f7dcd00a47615aaacc78cd351066f6f
  Author: Chris Dumez <cdumez at apple.com>
  Date:   2023-10-05 (Thu, 05 Oct 2023)

  Changed paths:
    M Source/JavaScriptCore/KeywordLookupGenerator.py
    M Source/JavaScriptCore/runtime/LiteralParser.cpp
    M Source/WTF/WTF.xcodeproj/project.pbxproj
    M Source/WTF/wtf/CMakeLists.txt
    A Source/WTF/wtf/text/FastCharacterComparison.h
    M Source/WebCore/html/parser/HTMLDocumentParserFastPath.cpp

  Log Message:
  -----------
  Move fast character comparison functions from JavaScriptCore/KeywordLookup.h to WTF/
https://bugs.webkit.org/show_bug.cgi?id=262740

Reviewed by Yusuke Suzuki and Ryosuke Niwa.

Move fast character comparison functions from JavaScriptCore/KeywordLookup.h to WTF/text/FastCharacterComparison.h
and reuse them in the HTML fast parser.

I believe they may end up being useful in the trie we generate to parse element tag & attribute names.

* Source/JavaScriptCore/KeywordLookupGenerator.py:
(Trie.printSubTreeAsC):
* Source/JavaScriptCore/runtime/LiteralParser.cpp:
(JSC::LiteralParser<CharType>::Lexer::lex):
(JSC::compare3Chars): Deleted.
(JSC::compare4Chars): Deleted.
* Source/WTF/WTF.xcodeproj/project.pbxproj:
* Source/WTF/wtf/text/FastCharacterComparison.h: Added.
(WTF::compareCharacters):
* Source/WebCore/html/parser/HTMLDocumentParserFastPath.cpp:
(WebCore::HTMLFastPathParser::scanAttributeName):

Canonical link: https://commits.webkit.org/268959@main