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/*
* Copyright (C) 2016-2021 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. ``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 "WebAssemblyInstanceConstructor.h"
#if ENABLE(WEBASSEMBLY)
#include "JSCInlines.h"
#include "JSWebAssemblyInstance.h"
#include "JSWebAssemblyModule.h"
#include "WebAssemblyInstancePrototype.h"
namespace JSC {
const ClassInfo WebAssemblyInstanceConstructor::s_info = { "Function"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(WebAssemblyInstanceConstructor) };
static JSC_DECLARE_HOST_FUNCTION(constructJSWebAssemblyInstance);
static JSC_DECLARE_HOST_FUNCTION(callJSWebAssemblyInstance);
using Wasm::Plan;
JSC_DEFINE_HOST_FUNCTION(constructJSWebAssemblyInstance, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
// If moduleObject is not a WebAssembly.Module instance, a TypeError is thrown.
JSWebAssemblyModule* module = jsDynamicCast<JSWebAssemblyModule*>(callFrame->argument(0));
if (!module)
return JSValue::encode(throwException(globalObject, scope, createTypeError(globalObject, "first argument to WebAssembly.Instance must be a WebAssembly.Module"_s, defaultSourceAppender, runtimeTypeForValue(callFrame->argument(0)))));
// If the importObject parameter is not undefined and Type(importObject) is not Object, a TypeError is thrown.
JSValue importArgument = callFrame->argument(1);
JSObject* importObject = importArgument.getObject();
if (!importArgument.isUndefined() && !importObject)
return JSValue::encode(throwException(globalObject, scope, createTypeError(globalObject, "second argument to WebAssembly.Instance must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(importArgument))));
JSObject* newTarget = asObject(callFrame->newTarget());
Structure* instanceStructure = JSC_GET_DERIVED_STRUCTURE(vm, webAssemblyInstanceStructure, newTarget, callFrame->jsCallee());
RETURN_IF_EXCEPTION(scope, { });
JSWebAssemblyInstance* instance = JSWebAssemblyInstance::tryCreate(vm, instanceStructure, globalObject, JSWebAssemblyInstance::createPrivateModuleKey(), module, importObject, Wasm::CreationMode::FromJS);
RETURN_IF_EXCEPTION(scope, { });
instance->initializeImports(globalObject, importObject, Wasm::CreationMode::FromJS);
RETURN_IF_EXCEPTION(scope, { });
instance->finalizeCreation(vm, globalObject, module->module().compileSync(vm, instance->memoryMode()), Wasm::CreationMode::FromJS);
RETURN_IF_EXCEPTION(scope, { });
return JSValue::encode(instance);
}
JSC_DEFINE_HOST_FUNCTION(callJSWebAssemblyInstance, (JSGlobalObject* globalObject, CallFrame*))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "WebAssembly.Instance"_s));
}
WebAssemblyInstanceConstructor* WebAssemblyInstanceConstructor::create(VM& vm, Structure* structure, WebAssemblyInstancePrototype* thisPrototype)
{
auto* constructor = new (NotNull, allocateCell<WebAssemblyInstanceConstructor>(vm)) WebAssemblyInstanceConstructor(vm, structure);
constructor->finishCreation(vm, thisPrototype);
return constructor;
}
Structure* WebAssemblyInstanceConstructor::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(InternalFunctionType, StructureFlags), info());
}
void WebAssemblyInstanceConstructor::finishCreation(VM& vm, WebAssemblyInstancePrototype* prototype)
{
Base::finishCreation(vm, 1, "Instance"_s, PropertyAdditionMode::WithoutStructureTransition);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, prototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
}
WebAssemblyInstanceConstructor::WebAssemblyInstanceConstructor(VM& vm, Structure* structure)
: Base(vm, structure, callJSWebAssemblyInstance, constructJSWebAssemblyInstance)
{
}
} // namespace JSC
#endif // ENABLE(WEBASSEMBLY)
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