124 lines
4.6 KiB
C++
124 lines
4.6 KiB
C++
/*
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* Copyright (C) 2003-2018 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "runtime_method.h"
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#include "JSDOMBinding.h"
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#include "JSHTMLElement.h"
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#include "JSPluginElementFunctions.h"
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#include "WebCoreJSClientData.h"
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#include "runtime_object.h"
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#include <JavaScriptCore/Error.h>
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#include <JavaScriptCore/FunctionPrototype.h>
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#include <JavaScriptCore/JSGlobalObjectInlines.h>
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using namespace WebCore;
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namespace JSC {
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using namespace Bindings;
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WEBCORE_EXPORT const ClassInfo RuntimeMethod::s_info = { "RuntimeMethod", &InternalFunction::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(RuntimeMethod) };
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static JSC_DECLARE_HOST_FUNCTION(callRuntimeMethod);
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static JSC_DECLARE_CUSTOM_GETTER(methodLengthGetter);
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RuntimeMethod::RuntimeMethod(VM& vm, Structure* structure, Method* method)
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// Callers will need to pass in the right global object corresponding to this native object "method".
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: InternalFunction(vm, structure, callRuntimeMethod, nullptr)
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, m_method(method)
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{
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}
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void RuntimeMethod::finishCreation(VM& vm, const String& ident)
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{
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Base::finishCreation(vm, 0, ident);
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ASSERT(inherits(vm, info()));
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}
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JSC_DEFINE_CUSTOM_GETTER(methodLengthGetter, (JSGlobalObject* exec, EncodedJSValue thisValue, PropertyName))
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{
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VM& vm = exec->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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RuntimeMethod* thisObject = jsDynamicCast<RuntimeMethod*>(vm, JSValue::decode(thisValue));
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if (!thisObject)
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return throwVMTypeError(exec, scope);
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return JSValue::encode(jsNumber(thisObject->method()->numParameters()));
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}
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bool RuntimeMethod::getOwnPropertySlot(JSObject* object, JSGlobalObject* exec, PropertyName propertyName, PropertySlot &slot)
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{
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VM& vm = exec->vm();
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RuntimeMethod* thisObject = jsCast<RuntimeMethod*>(object);
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if (propertyName == vm.propertyNames->length) {
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slot.setCacheableCustom(thisObject, PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum, methodLengthGetter);
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return true;
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}
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return InternalFunction::getOwnPropertySlot(thisObject, exec, propertyName, slot);
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}
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IsoSubspace* RuntimeMethod::subspaceForImpl(VM& vm)
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{
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return &static_cast<JSVMClientData*>(vm.clientData)->runtimeMethodSpace();
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}
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JSC_DEFINE_HOST_FUNCTION(callRuntimeMethod, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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RuntimeMethod* method = static_cast<RuntimeMethod*>(callFrame->jsCallee());
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if (!method->method())
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return JSValue::encode(jsUndefined());
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RefPtr<Instance> instance;
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JSValue thisValue = callFrame->thisValue();
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if (thisValue.inherits<RuntimeObject>(vm)) {
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RuntimeObject* runtimeObject = static_cast<RuntimeObject*>(asObject(thisValue));
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instance = runtimeObject->getInternalInstance();
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if (!instance)
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return JSValue::encode(throwRuntimeObjectInvalidAccessError(globalObject, scope));
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} else {
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// Calling a runtime object of a plugin element?
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if (thisValue.inherits<JSHTMLElement>(vm))
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instance = pluginInstance(jsCast<JSHTMLElement*>(asObject(thisValue))->wrapped());
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if (!instance)
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return throwVMTypeError(globalObject, scope);
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}
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ASSERT(instance);
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instance->begin();
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JSValue result = instance->invokeMethod(globalObject, callFrame, method);
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instance->end();
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return JSValue::encode(result);
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}
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}
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