webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 96 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/JSCustomGetterSetterFunction.cpp b/Source/JavaScriptCore/runtime/JSCustomGetterSetterFunction.cpp
new file mode 100644
index 000000000..ce29a3988
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+++ b/Source/JavaScriptCore/runtime/JSCustomGetterSetterFunction.cpp
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+/*
+ * Copyright (C) 2015, 2016 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. AND ITS CONTRIBUTORS ``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 ITS 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.
+ */
+
+#include "config.h"
+#include "JSCustomGetterSetterFunction.h"
+
+#include "CustomGetterSetter.h"
+#include "GetterSetter.h"
+#include "JSCInlines.h"
+#include "JSGlobalObject.h"
+
+namespace JSC {
+
+const ClassInfo JSCustomGetterSetterFunction::s_info = { "Function", &Base::s_info, 0, CREATE_METHOD_TABLE(JSCustomGetterSetterFunction) };
+
+EncodedJSValue JSC_HOST_CALL JSCustomGetterSetterFunction::customGetterSetterFunctionCall(ExecState* exec)
+{
+    JSCustomGetterSetterFunction* customGetterSetterFunction = jsCast<JSCustomGetterSetterFunction*>(exec->jsCallee());
+    CustomGetterSetter* customGetterSetter = customGetterSetterFunction->customGetterSetter();
+
+    if (customGetterSetterFunction->isSetter()) {
+        CustomGetterSetter::CustomSetter setter = customGetterSetter->setter();
+        ASSERT(setter);
+        callCustomSetter(exec, setter, true, exec->thisValue(), exec->argument(0));
+        return JSValue::encode(jsUndefined());
+    }
+
+    CustomGetterSetter::CustomGetter getter = customGetterSetter->getter();
+    ASSERT(getter);
+    return getter(exec, JSValue::encode(exec->thisValue()), customGetterSetterFunction->propertyName());
+}
+
+JSCustomGetterSetterFunction::JSCustomGetterSetterFunction(VM& vm, JSGlobalObject* globalObject, Structure* structure, const Type type, const PropertyName& propertyName)
+    : Base(vm, globalObject, structure)
+    , m_type(type)
+    , m_propertyName(propertyName)
+{
+}
+
+JSCustomGetterSetterFunction* JSCustomGetterSetterFunction::create(VM& vm, JSGlobalObject* globalObject, CustomGetterSetter* getterSetter, const Type type, const PropertyName& propertyName)
+{
+    ASSERT(type == Type::Getter ? !!getterSetter->getter() : !!getterSetter->setter());
+
+    const char* prefix = (type == Type::Getter) ? "get " : "set ";
+    String name = makeString(prefix, String(propertyName.publicName()));
+
+    NativeExecutable* executable = vm.getHostFunction(customGetterSetterFunctionCall, callHostFunctionAsConstructor, String(propertyName.publicName()));
+
+    Structure* structure = globalObject->customGetterSetterFunctionStructure();
+    JSCustomGetterSetterFunction* function = new (NotNull, allocateCell<JSCustomGetterSetterFunction>(vm.heap)) JSCustomGetterSetterFunction(vm, globalObject, structure, type, propertyName);
+
+    // Can't do this during initialization because getHostFunction might do a GC allocation.
+    function->finishCreation(vm, executable, getterSetter, name);
+    return function;
+}
+
+void JSCustomGetterSetterFunction::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+    JSCustomGetterSetterFunction* thisObject = jsCast<JSCustomGetterSetterFunction*>(cell);
+    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
+    Base::visitChildren(thisObject, visitor);
+
+    visitor.append(thisObject->m_getterSetter);
+}
+
+void JSCustomGetterSetterFunction::finishCreation(VM& vm, NativeExecutable* executable, CustomGetterSetter* getterSetter, const String& name)
+{
+    Base::finishCreation(vm, executable, isSetter(), name);
+    ASSERT(inherits(vm, info()));
+    ASSERT(getterSetter);
+    m_getterSetter.set(vm, this, getterSetter);
+}
+
+} // namespace JSC