From e15dd966d523731101f70ccf768bba12435a0208 Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Thu, 15 Oct 2015 09:45:50 +0000 Subject: webkitgtk-2.10.2 --- Source/JavaScriptCore/runtime/JSBoundFunction.cpp | 122 ++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 Source/JavaScriptCore/runtime/JSBoundFunction.cpp (limited to 'Source/JavaScriptCore/runtime/JSBoundFunction.cpp') diff --git a/Source/JavaScriptCore/runtime/JSBoundFunction.cpp b/Source/JavaScriptCore/runtime/JSBoundFunction.cpp new file mode 100644 index 000000000..8c5cc2ed3 --- /dev/null +++ b/Source/JavaScriptCore/runtime/JSBoundFunction.cpp @@ -0,0 +1,122 @@ +/* + * Copyright (C) 2011 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. + */ + +#include "config.h" +#include "JSBoundFunction.h" + +#include "GetterSetter.h" +#include "JSGlobalObject.h" +#include "JSCInlines.h" + +namespace JSC { + +const ClassInfo JSBoundFunction::s_info = { "Function", &Base::s_info, 0, CREATE_METHOD_TABLE(JSBoundFunction) }; + +EncodedJSValue JSC_HOST_CALL boundFunctionCall(ExecState* exec) +{ + JSBoundFunction* boundFunction = jsCast(exec->callee()); + + ASSERT(isJSArray(boundFunction->boundArgs())); // Currently this is true! + JSArray* boundArgs = asArray(boundFunction->boundArgs()); + + MarkedArgumentBuffer args; + for (unsigned i = 0; i < boundArgs->length(); ++i) + args.append(boundArgs->getIndexQuickly(i)); + for (unsigned i = 0; i < exec->argumentCount(); ++i) + args.append(exec->uncheckedArgument(i)); + + JSObject* targetFunction = boundFunction->targetFunction(); + CallData callData; + CallType callType = getCallData(targetFunction, callData); + ASSERT(callType != CallTypeNone); + return JSValue::encode(call(exec, targetFunction, callType, callData, boundFunction->boundThis(), args)); +} + +EncodedJSValue JSC_HOST_CALL boundFunctionConstruct(ExecState* exec) +{ + JSBoundFunction* boundFunction = jsCast(exec->callee()); + + ASSERT(isJSArray(boundFunction->boundArgs())); // Currently this is true! + JSArray* boundArgs = asArray(boundFunction->boundArgs()); + + MarkedArgumentBuffer args; + for (unsigned i = 0; i < boundArgs->length(); ++i) + args.append(boundArgs->getIndexQuickly(i)); + for (unsigned i = 0; i < exec->argumentCount(); ++i) + args.append(exec->uncheckedArgument(i)); + + JSObject* targetFunction = boundFunction->targetFunction(); + ConstructData constructData; + ConstructType constructType = getConstructData(targetFunction, constructData); + ASSERT(constructType != ConstructTypeNone); + return JSValue::encode(construct(exec, targetFunction, constructType, constructData, args)); +} + +JSBoundFunction* JSBoundFunction::create(VM& vm, JSGlobalObject* globalObject, JSObject* targetFunction, JSValue boundThis, JSValue boundArgs, int length, const String& name) +{ + ConstructData constructData; + ConstructType constructType = JSC::getConstructData(targetFunction, constructData); + bool canConstruct = constructType != ConstructTypeNone; + NativeExecutable* executable = vm.getHostFunction(boundFunctionCall, canConstruct ? boundFunctionConstruct : callHostFunctionAsConstructor); + JSBoundFunction* function = new (NotNull, allocateCell(vm.heap)) JSBoundFunction(vm, globalObject, globalObject->boundFunctionStructure(), targetFunction, boundThis, boundArgs); + + function->finishCreation(vm, executable, length, name); + return function; +} + +bool JSBoundFunction::customHasInstance(JSObject* object, ExecState* exec, JSValue value) +{ + return jsCast(object)->m_targetFunction->hasInstance(exec, value); +} + +JSBoundFunction::JSBoundFunction(VM& vm, JSGlobalObject* globalObject, Structure* structure, JSObject* targetFunction, JSValue boundThis, JSValue boundArgs) + : Base(vm, globalObject, structure) + , m_targetFunction(vm, this, targetFunction) + , m_boundThis(vm, this, boundThis) + , m_boundArgs(vm, this, boundArgs) +{ +} + +void JSBoundFunction::finishCreation(VM& vm, NativeExecutable* executable, int length, const String& name) +{ + Base::finishCreation(vm, executable, length, name); + ASSERT(inherits(info())); + + putDirectNonIndexAccessor(vm, vm.propertyNames->arguments, globalObject()->throwTypeErrorGetterSetter(vm), DontDelete | DontEnum | Accessor); + putDirectNonIndexAccessor(vm, vm.propertyNames->caller, globalObject()->throwTypeErrorGetterSetter(vm), DontDelete | DontEnum | Accessor); +} + +void JSBoundFunction::visitChildren(JSCell* cell, SlotVisitor& visitor) +{ + JSBoundFunction* thisObject = jsCast(cell); + ASSERT_GC_OBJECT_INHERITS(thisObject, info()); + Base::visitChildren(thisObject, visitor); + + visitor.append(&thisObject->m_targetFunction); + visitor.append(&thisObject->m_boundThis); + visitor.append(&thisObject->m_boundArgs); +} + +} // namespace JSC -- cgit v1.2.1