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/*
* Copyright (C) 2015-2021 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 "JSCustomGetterFunction.h"
#include "IdentifierInlines.h"
#include "JSCJSValueInlines.h"
namespace JSC {
const ClassInfo JSCustomGetterFunction::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCustomGetterFunction) };
static JSC_DECLARE_HOST_FUNCTION(customGetterFunctionCall);
JSC_DEFINE_HOST_FUNCTION(customGetterFunctionCall, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSCustomGetterFunction* customGetterFunction = jsCast<JSCustomGetterFunction*>(callFrame->jsCallee());
JSValue thisValue = callFrame->thisValue();
auto getter = customGetterFunction->getter();
if (auto domAttribute = customGetterFunction->domAttribute()) {
if (!thisValue.inherits(vm, domAttribute->classInfo))
return throwVMDOMAttributeGetterTypeError(globalObject, scope, domAttribute->classInfo, customGetterFunction->propertyName());
}
RELEASE_AND_RETURN(scope, getter(globalObject, JSValue::encode(thisValue), customGetterFunction->propertyName()));
}
JSCustomGetterFunction::JSCustomGetterFunction(VM& vm, NativeExecutable* executable, JSGlobalObject* globalObject, Structure* structure, const PropertyName& propertyName, CustomFunctionPointer getter, std::optional<DOMAttributeAnnotation> domAttribute)
: Base(vm, executable, globalObject, structure)
, m_propertyName(Identifier::fromUid(vm, propertyName.uid()))
, m_getter(getter)
, m_domAttribute(domAttribute)
{
}
JSCustomGetterFunction* JSCustomGetterFunction::create(VM& vm, JSGlobalObject* globalObject, const PropertyName& propertyName, CustomFunctionPointer getter, std::optional<DOMAttributeAnnotation> domAttribute)
{
ASSERT(getter);
NativeExecutable* executable = vm.getHostFunction(customGetterFunctionCall, callHostFunctionAsConstructor, String(propertyName.publicName()));
Structure* structure = globalObject->customGetterFunctionStructure();
JSCustomGetterFunction* function = new (NotNull, allocateCell<JSCustomGetterFunction>(vm)) JSCustomGetterFunction(vm, executable, globalObject, structure, propertyName, getter, domAttribute);
// Can't do this during initialization because getHostFunction might do a GC allocation.
auto name = makeString("get ", propertyName.publicName());
function->finishCreation(vm, executable, 0, name);
return function;
}
void JSCustomGetterFunction::destroy(JSCell* cell)
{
static_cast<JSCustomGetterFunction*>(cell)->~JSCustomGetterFunction();
}
} // namespace JSC