[ES6] Implement WeakSet
https://bugs.webkit.org/show_bug.cgi?id=142408
Reviewed by Darin Adler.
Source/JavaScriptCore:
This patch implements ES6 WeakSet.
Current implementation simply leverages WeakMapData with undefined value.
This WeakMapData should be optimized in the same manner as MapData/SetData in the subsequent patch[1].
And in this patch, we also fix WeakMap/WeakSet behavior to conform the ES6 spec.
Except for adders (WeakMap.prototype.set/WeakSet.prototype.add),
methods return false (or undefined for WeakMap.prototype.get)
when a key is not Object instead of throwing a type error.
[1]: https://bugs.webkit.org/show_bug.cgi?id=143919
* CMakeLists.txt:
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj:
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj.filters:
* JavaScriptCore.xcodeproj/project.pbxproj:
* runtime/CommonIdentifiers.h:
* runtime/JSGlobalObject.cpp:
* runtime/JSGlobalObject.h:
* runtime/JSWeakSet.cpp: Added.
(JSC::JSWeakSet::finishCreation):
(JSC::JSWeakSet::visitChildren):
* runtime/JSWeakSet.h: Added.
(JSC::JSWeakSet::createStructure):
(JSC::JSWeakSet::create):
(JSC::JSWeakSet::weakMapData):
(JSC::JSWeakSet::JSWeakSet):
* runtime/WeakMapPrototype.cpp:
(JSC::getWeakMapData):
(JSC::protoFuncWeakMapDelete):
(JSC::protoFuncWeakMapGet):
(JSC::protoFuncWeakMapHas):
* runtime/WeakSetConstructor.cpp: Added.
(JSC::WeakSetConstructor::finishCreation):
(JSC::callWeakSet):
(JSC::constructWeakSet):
(JSC::WeakSetConstructor::getConstructData):
(JSC::WeakSetConstructor::getCallData):
* runtime/WeakSetConstructor.h: Added.
(JSC::WeakSetConstructor::create):
(JSC::WeakSetConstructor::createStructure):
(JSC::WeakSetConstructor::WeakSetConstructor):
* runtime/WeakSetPrototype.cpp: Added.
(JSC::WeakSetPrototype::finishCreation):
(JSC::getWeakMapData):
(JSC::protoFuncWeakSetDelete):
(JSC::protoFuncWeakSetHas):
(JSC::protoFuncWeakSetAdd):
* runtime/WeakSetPrototype.h: Added.
(JSC::WeakSetPrototype::create):
(JSC::WeakSetPrototype::createStructure):
(JSC::WeakSetPrototype::WeakSetPrototype):
* tests/stress/weak-set-constructor-adder.js: Added.
(WeakSet.prototype.add):
* tests/stress/weak-set-constructor.js: Added.
LayoutTests:
Add basic-weakset test and fix WeakMap behavior to conform the latest spec.
* js/dom/basic-weakmap-expected.txt:
* js/dom/basic-weakset-expected.txt: Added.
* js/dom/basic-weakset.html: Added.
* js/dom/script-tests/basic-weakmap.js:
* js/dom/script-tests/basic-weakset.js: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@182994 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/runtime/WeakSetConstructor.h b/Source/JavaScriptCore/runtime/WeakSetConstructor.h
new file mode 100644
index 0000000..7f6fb6a
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/WeakSetConstructor.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2015 Apple, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef WeakSetConstructor_h
+#define WeakSetConstructor_h
+
+#include "InternalFunction.h"
+
+namespace JSC {
+
+class WeakSetPrototype;
+
+class WeakSetConstructor : public InternalFunction {
+public:
+ typedef InternalFunction Base;
+
+ static WeakSetConstructor* create(VM& vm, Structure* structure, WeakSetPrototype* prototype)
+ {
+ WeakSetConstructor* constructor = new (NotNull, allocateCell<WeakSetConstructor>(vm.heap)) WeakSetConstructor(vm, structure);
+ constructor->finishCreation(vm, prototype);
+ return constructor;
+ }
+
+ DECLARE_INFO;
+
+ static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
+ {
+ return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
+ }
+
+private:
+ WeakSetConstructor(VM& vm, Structure* structure)
+ : Base(vm, structure)
+ {
+ }
+ void finishCreation(VM&, WeakSetPrototype*);
+ static ConstructType getConstructData(JSCell*, ConstructData&);
+ static CallType getCallData(JSCell*, CallData&);
+};
+
+}
+
+#endif // !defined(WeakSetConstructor_h)
