webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 131 insertions, 0 deletions

diff --git a/Source/WebCore/bindings/js/JSDOMBuiltinConstructor.h b/Source/WebCore/bindings/js/JSDOMBuiltinConstructor.h
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index 000000000..74ee3a5ca
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+++ b/Source/WebCore/bindings/js/JSDOMBuiltinConstructor.h
@@ -0,0 +1,131 @@
+/*
+ *  Copyright (C) 2015, 2016 Canon Inc. All rights reserved.
+ *  Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#pragma once
+
+#include "JSDOMBuiltinConstructorBase.h"
+#include "JSDOMExceptionHandling.h"
+#include "JSDOMWrapperCache.h"
+
+namespace WebCore {
+
+template<typename JSClass> class JSDOMBuiltinConstructor : public JSDOMBuiltinConstructorBase {
+public:
+    using Base = JSDOMBuiltinConstructorBase;
+
+    static JSDOMBuiltinConstructor* create(JSC::VM&, JSC::Structure*, JSDOMGlobalObject&);
+    static JSC::Structure* createStructure(JSC::VM&, JSC::JSGlobalObject&, JSC::JSValue prototype);
+
+    DECLARE_INFO;
+
+    // Usually defined for each specialization class.
+    static JSC::JSValue prototypeForStructure(JSC::VM&, const JSDOMGlobalObject&);
+
+private:
+    JSDOMBuiltinConstructor(JSC::Structure* structure, JSDOMGlobalObject& globalObject)
+        : Base(structure, globalObject)
+    {
+    }
+
+    void finishCreation(JSC::VM&, JSDOMGlobalObject&);
+    static JSC::ConstructType getConstructData(JSC::JSCell*, JSC::ConstructData&);
+    static JSC::EncodedJSValue JSC_HOST_CALL construct(JSC::ExecState*);
+
+    JSC::EncodedJSValue callConstructor(JSC::ExecState&, JSC::JSObject&);
+    JSC::EncodedJSValue callConstructor(JSC::ExecState&, JSC::JSObject*);
+
+    // Usually defined for each specialization class.
+    void initializeProperties(JSC::VM&, JSDOMGlobalObject&) { }
+    // Must be defined for each specialization class.
+    JSC::FunctionExecutable* initializeExecutable(JSC::VM&);
+};
+
+template<typename JSClass> inline JSDOMBuiltinConstructor<JSClass>* JSDOMBuiltinConstructor<JSClass>::create(JSC::VM& vm, JSC::Structure* structure, JSDOMGlobalObject& globalObject)
+{
+    JSDOMBuiltinConstructor* constructor = new (NotNull, JSC::allocateCell<JSDOMBuiltinConstructor>(vm.heap)) JSDOMBuiltinConstructor(structure, globalObject);
+    constructor->finishCreation(vm, globalObject);
+    return constructor;
+}
+
+template<typename JSClass> inline JSC::Structure* JSDOMBuiltinConstructor<JSClass>::createStructure(JSC::VM& vm, JSC::JSGlobalObject& globalObject, JSC::JSValue prototype)
+{
+    return JSC::Structure::create(vm, &globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
+}
+
+template<typename JSClass> inline void JSDOMBuiltinConstructor<JSClass>::finishCreation(JSC::VM& vm, JSDOMGlobalObject& globalObject)
+{
+    Base::finishCreation(vm);
+    ASSERT(inherits(vm, info()));
+    setInitializeFunction(vm, *JSC::JSFunction::createBuiltinFunction(vm, initializeExecutable(vm), &globalObject));
+    initializeProperties(vm, globalObject);
+}
+
+template<typename JSClass> inline JSC::EncodedJSValue JSDOMBuiltinConstructor<JSClass>::callConstructor(JSC::ExecState& state, JSC::JSObject& object)
+{
+    Base::callFunctionWithCurrentArguments(state, object, *initializeFunction());
+    return JSC::JSValue::encode(&object);
+}
+
+template<typename JSClass> inline JSC::EncodedJSValue JSDOMBuiltinConstructor<JSClass>::callConstructor(JSC::ExecState& state, JSC::JSObject* object)
+{
+    JSC::VM& vm = state.vm();
+    auto scope = DECLARE_THROW_SCOPE(vm);
+    if (!object)
+        return throwConstructorScriptExecutionContextUnavailableError(state, scope, info()->className);
+    return callConstructor(state, *object);
+}
+
+template<typename JSClass> inline
+typename std::enable_if<JSDOMObjectInspector<JSClass>::isSimpleWrapper, JSC::JSObject&>::type createJSObject(JSDOMBuiltinConstructor<JSClass>& constructor)
+{
+    auto& globalObject = *constructor.globalObject();
+    return *JSClass::create(getDOMStructure<JSClass>(globalObject.vm(), globalObject), &globalObject, JSClass::DOMWrapped::create());
+}
+
+template<typename JSClass> inline
+typename std::enable_if<JSDOMObjectInspector<JSClass>::isBuiltin, JSC::JSObject&>::type createJSObject(JSDOMBuiltinConstructor<JSClass>& constructor)
+{
+    auto& globalObject = *constructor.globalObject();
+    return *JSClass::create(getDOMStructure<JSClass>(globalObject.vm(), globalObject), &globalObject);
+}
+
+template<typename JSClass> inline
+typename std::enable_if<JSDOMObjectInspector<JSClass>::isComplexWrapper, JSC::JSObject*>::type createJSObject(JSDOMBuiltinConstructor<JSClass>& constructor)
+{
+    ScriptExecutionContext* context = constructor.scriptExecutionContext();
+    if (!context)
+        return nullptr;
+    auto& globalObject = *constructor.globalObject();
+    return JSClass::create(getDOMStructure<JSClass>(globalObject.vm(), globalObject), &globalObject, JSClass::DOMWrapped::create(*context));
+}
+
+template<typename JSClass> inline JSC::EncodedJSValue JSC_HOST_CALL JSDOMBuiltinConstructor<JSClass>::construct(JSC::ExecState* state)
+{
+    ASSERT(state);
+    auto* castedThis = JSC::jsCast<JSDOMBuiltinConstructor*>(state->jsCallee());
+    return castedThis->callConstructor(*state, createJSObject(*castedThis));
+}
+
+template<typename JSClass> inline JSC::ConstructType JSDOMBuiltinConstructor<JSClass>::getConstructData(JSC::JSCell*, JSC::ConstructData& constructData)
+{
+    constructData.native.function = construct;
+    return JSC::ConstructType::Host;
+}
+
+} // namespace WebCore