• oliver@apple.com's avatar
    Support WeakMap · bfcc048e
    oliver@apple.com authored
    https://bugs.webkit.org/show_bug.cgi?id=120912
    
    Reviewed by Geoffrey Garen.
    
    Source/JavaScriptCore:
    
    Add support for ES6 WeakMap.  Add the cluster of boilerplate
    classes around the core WeakMapData class.
    
    WeakMapData is a simple object->value hash table that uses a
    combo of WeakReferenceHarvester to conditionally keep the weak
    value reference live, and UnconditionalFinalizer to clean the
    dead keys from the table post-GC.
    
    * CMakeLists.txt:
    * GNUmakefile.list.am:
    * JavaScriptCore.vcxproj/JavaScriptCore.vcxproj:
    * JavaScriptCore.vcxproj/JavaScriptCore.vcxproj.filters:
    * JavaScriptCore.xcodeproj/project.pbxproj:
    * Target.pri:
    * runtime/CommonIdentifiers.h:
    * runtime/JSGlobalObject.cpp:
    * runtime/JSGlobalObject.h:
    (JSC::JSGlobalObject::weakMapDataStructure):
    * runtime/JSWeakMap.cpp: Added.
    (JSC::JSWeakMap::finishCreation):
    (JSC::JSWeakMap::visitChildren):
    * runtime/JSWeakMap.h: Added.
    (JSC::JSWeakMap::createStructure):
    (JSC::JSWeakMap::create):
    (JSC::JSWeakMap::weakMapData):
    (JSC::JSWeakMap::JSWeakMap):
    * runtime/WeakMapConstructor.cpp: Added.
    (JSC::WeakMapConstructor::finishCreation):
    (JSC::constructWeakMap):
    (JSC::WeakMapConstructor::getConstructData):
    (JSC::WeakMapConstructor::getCallData):
    * runtime/WeakMapConstructor.h: Added.
    (JSC::WeakMapConstructor::create):
    (JSC::WeakMapConstructor::createStructure):
    (JSC::WeakMapConstructor::WeakMapConstructor):
    * runtime/WeakMapData.cpp: Added.
    (JSC::WeakMapData::WeakMapData):
    (JSC::WeakMapData::finishCreation):
    (JSC::WeakMapData::destroy):
    (JSC::WeakMapData::visitChildren):
    (JSC::WeakMapData::set):
    (JSC::WeakMapData::get):
    (JSC::WeakMapData::remove):
    (JSC::WeakMapData::contains):
    (JSC::WeakMapData::clear):
    (JSC::WeakMapData::DeadKeyCleaner::visitWeakReferences):
    (JSC::WeakMapData::DeadKeyCleaner::finalizeUnconditionally):
    * runtime/WeakMapData.h: Added.
    (JSC::WeakMapData::create):
    (JSC::WeakMapData::createStructure):
    (JSC::WeakMapData::DeadKeyCleaner::DeadKeyCleaner):
    * runtime/WeakMapPrototype.cpp: Added.
    (JSC::WeakMapPrototype::finishCreation):
    (JSC::getWeakMapData):
    (JSC::protoFuncWeakMapClear):
    (JSC::protoFuncWeakMapDelete):
    (JSC::protoFuncWeakMapGet):
    (JSC::protoFuncWeakMapHas):
    (JSC::protoFuncWeakMapSet):
    * runtime/WeakMapPrototype.h: Added.
    (JSC::WeakMapPrototype::create):
    (JSC::WeakMapPrototype::createStructure):
    (JSC::WeakMapPrototype::WeakMapPrototype):
    
    LayoutTests:
    
    Basic tests.
    
    * js/basic-weakmap-expected.txt: Added.
    * js/basic-weakmap.html: Added.
    * js/script-tests/basic-weakmap.js: Added.
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@155473 268f45cc-cd09-0410-ab3c-d52691b4dbfc
    bfcc048e
JSGlobalObject.h 25.6 KB