Source/JavaScriptCore/API/JSCallbackObject.cpp

/*
 * Copyright (C) 2006-2022 Apple Inc. All rights reserved.
 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
 *
 * 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 "JSCallbackObject.h"

#include "JSCInlines.h"

namespace JSC {

static JSC_DECLARE_HOST_FUNCTION(callJSNonFinalObjectCallbackObject);
static JSC_DECLARE_HOST_FUNCTION(constructJSNonFinalObjectCallbackObject);
static JSC_DECLARE_HOST_FUNCTION(callJSGlobalObjectCallbackObject);
static JSC_DECLARE_HOST_FUNCTION(constructJSGlobalObjectCallbackObject);

static JSC_DECLARE_CUSTOM_GETTER(callbackGetterJSNonFinalObjectCallbackObject);
static JSC_DECLARE_CUSTOM_GETTER(staticFunctionGetterJSNonFinalObjectCallbackObject);
static JSC_DECLARE_CUSTOM_GETTER(callbackGetterJSGlobalObjectCallbackObject);
static JSC_DECLARE_CUSTOM_GETTER(staticFunctionGetterJSGlobalObjectCallbackObject);

DEFINE_VISIT_CHILDREN_WITH_MODIFIER(template<>, JSCallbackObject<JSNonFinalObject>);
DEFINE_VISIT_CHILDREN_WITH_MODIFIER(template<>, JSCallbackObject<JSGlobalObject>);

// Define the two types of JSCallbackObjects we support.
template <> const ClassInfo JSCallbackObject<JSNonFinalObject>::s_info = { "CallbackObject"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCallbackObject) };
template <> const ClassInfo JSCallbackObject<JSGlobalObject>::s_info = { "CallbackGlobalObject"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCallbackObject) };
template<> const bool JSCallbackObject<JSNonFinalObject>::needsDestruction = true;
template<> const bool JSCallbackObject<JSGlobalObject>::needsDestruction = true;

template<>
NativeFunction::Ptr JSCallbackObject<JSNonFinalObject>::getCallFunction()
{
    return callJSNonFinalObjectCallbackObject;
}

template<>
NativeFunction::Ptr JSCallbackObject<JSNonFinalObject>::getConstructFunction()
{
    return constructJSNonFinalObjectCallbackObject;
}

template <>
GetValueFunc JSCallbackObject<JSNonFinalObject>::getCallbackGetter()
{
    return callbackGetterJSNonFinalObjectCallbackObject;
}

template <>
GetValueFunc JSCallbackObject<JSNonFinalObject>::getStaticFunctionGetter()
{
    return staticFunctionGetterJSNonFinalObjectCallbackObject;
}


template<>
NativeFunction::Ptr JSCallbackObject<JSGlobalObject>::getCallFunction()
{
    return callJSGlobalObjectCallbackObject;
}

template<>
NativeFunction::Ptr JSCallbackObject<JSGlobalObject>::getConstructFunction()
{
    return constructJSGlobalObjectCallbackObject;
}

template <>
GetValueFunc JSCallbackObject<JSGlobalObject>::getCallbackGetter()
{
    return callbackGetterJSGlobalObjectCallbackObject;
}

template <>
GetValueFunc JSCallbackObject<JSGlobalObject>::getStaticFunctionGetter()
{
    return staticFunctionGetterJSGlobalObjectCallbackObject;
}

template<>
JSCallbackObject<JSGlobalObject>* JSCallbackObject<JSGlobalObject>::create(VM& vm, JSClassRef classRef, Structure* structure)
{
    JSCallbackObject<JSGlobalObject>* callbackObject = new (NotNull, allocateCell<JSCallbackObject<JSGlobalObject>>(vm)) JSCallbackObject(vm, classRef, structure);
    callbackObject->finishCreation(vm);
    return callbackObject;
}

template <>
Structure* JSCallbackObject<JSNonFinalObject>::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
{ 
    return Structure::create(vm, globalObject, proto, TypeInfo(ObjectType, StructureFlags), info()); 
}
    
template <>
Structure* JSCallbackObject<JSGlobalObject>::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
{ 
    return Structure::create(vm, globalObject, proto, TypeInfo(GlobalObjectType, StructureFlags), info()); 
}

template <>
GCClient::IsoSubspace* JSCallbackObject<JSNonFinalObject>::subspaceForImpl(VM& vm, SubspaceAccess mode)
{
    switch (mode) {
    case SubspaceAccess::OnMainThread:
        return vm.callbackObjectSpace<SubspaceAccess::OnMainThread>();
    case SubspaceAccess::Concurrently:
        return vm.callbackObjectSpace<SubspaceAccess::Concurrently>();
    }
    RELEASE_ASSERT_NOT_REACHED();
    return nullptr;
}

template <>
GCClient::IsoSubspace* JSCallbackObject<JSGlobalObject>::subspaceForImpl(VM& vm, SubspaceAccess mode)
{
    switch (mode) {
    case SubspaceAccess::OnMainThread:
        return vm.callbackGlobalObjectSpace<SubspaceAccess::OnMainThread>();
    case SubspaceAccess::Concurrently:
        return vm.callbackGlobalObjectSpace<SubspaceAccess::Concurrently>();
    }
    RELEASE_ASSERT_NOT_REACHED();
    return nullptr;
}

JSC_DEFINE_HOST_FUNCTION(callJSNonFinalObjectCallbackObject, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    return JSCallbackObject<JSNonFinalObject>::callImpl(globalObject, callFrame);
}

JSC_DEFINE_HOST_FUNCTION(constructJSNonFinalObjectCallbackObject, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    return JSCallbackObject<JSNonFinalObject>::constructImpl(globalObject, callFrame);
}

JSC_DEFINE_HOST_FUNCTION(callJSGlobalObjectCallbackObject, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    return JSCallbackObject<JSGlobalObject>::callImpl(globalObject, callFrame);
}

JSC_DEFINE_HOST_FUNCTION(constructJSGlobalObjectCallbackObject, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
    return JSCallbackObject<JSGlobalObject>::constructImpl(globalObject, callFrame);
}

JSC_DEFINE_CUSTOM_GETTER(callbackGetterJSNonFinalObjectCallbackObject, (JSGlobalObject* globalObject, EncodedJSValue thisValue, PropertyName propertyName))
{
    return JSCallbackObject<JSNonFinalObject>::callbackGetterImpl(globalObject, thisValue, propertyName);
}

JSC_DEFINE_CUSTOM_GETTER(staticFunctionGetterJSNonFinalObjectCallbackObject, (JSGlobalObject* globalObject, EncodedJSValue thisValue, PropertyName propertyName))
{
    return JSCallbackObject<JSNonFinalObject>::staticFunctionGetterImpl(globalObject, thisValue, propertyName);
}

JSC_DEFINE_CUSTOM_GETTER(callbackGetterJSGlobalObjectCallbackObject, (JSGlobalObject* globalObject, EncodedJSValue thisValue, PropertyName propertyName))
{
    return JSCallbackObject<JSGlobalObject>::callbackGetterImpl(globalObject, thisValue, propertyName);
}

JSC_DEFINE_CUSTOM_GETTER(staticFunctionGetterJSGlobalObjectCallbackObject, (JSGlobalObject* globalObject, EncodedJSValue thisValue, PropertyName propertyName))
{
    return JSCallbackObject<JSGlobalObject>::staticFunctionGetterImpl(globalObject, thisValue, propertyName);
}

} // namespace JSC