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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
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