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/*
* Copyright (C) 2017-2021 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 "WebAssemblyWrapperFunction.h"
#if ENABLE(WEBASSEMBLY)
#include "JSObjectInlines.h"
#include "JSWebAssemblyInstance.h"
#include "WasmTypeDefinitionInlines.h"
namespace JSC {
const ClassInfo WebAssemblyWrapperFunction::s_info = { "WebAssemblyWrapperFunction"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(WebAssemblyWrapperFunction) };
static JSC_DECLARE_HOST_FUNCTION(callWebAssemblyWrapperFunction);
static JSC_DECLARE_HOST_FUNCTION(callWebAssemblyWrapperFunctionIncludingV128);
WebAssemblyWrapperFunction::WebAssemblyWrapperFunction(VM& vm, NativeExecutable* executable, JSGlobalObject* globalObject, Structure* structure, JSWebAssemblyInstance* instance, JSObject* function, Wasm::WasmToWasmImportableFunction importableFunction)
: Base(vm, executable, globalObject, structure, instance, importableFunction)
, m_function(function, WriteBarrierEarlyInit)
{ }
WebAssemblyWrapperFunction* WebAssemblyWrapperFunction::create(VM& vm, JSGlobalObject* globalObject, Structure* structure, JSObject* function, unsigned importIndex, JSWebAssemblyInstance* instance, Wasm::TypeIndex typeIndex, RefPtr<const Wasm::RTT> rtt)
{
ASSERT_WITH_MESSAGE(!function->inherits<WebAssemblyWrapperFunction>(), "We should never double wrap a wrapper function.");
String name = emptyString();
const auto& signature = Wasm::TypeInformation::getFunctionSignature(typeIndex);
NativeExecutable* executable = nullptr;
if (signature.argumentsOrResultsIncludeV128())
executable = vm.getHostFunction(callWebAssemblyWrapperFunctionIncludingV128, ImplementationVisibility::Public, NoIntrinsic, callHostFunctionAsConstructor, nullptr, name);
else
executable = vm.getHostFunction(callWebAssemblyWrapperFunction, ImplementationVisibility::Public, NoIntrinsic, callHostFunctionAsConstructor, nullptr, name);
RELEASE_ASSERT(JSValue(function).isCallable());
WebAssemblyWrapperFunction* result = new (NotNull, allocateCell<WebAssemblyWrapperFunction>(vm)) WebAssemblyWrapperFunction(vm, executable, globalObject, structure, instance, function, Wasm::WasmToWasmImportableFunction { typeIndex, &instance->importFunctionInfo(importIndex)->importFunctionStub, &Wasm::NullWasmCallee, rtt.get() });
result->finishCreation(vm, executable, signature.argumentCount(), name);
return result;
}
Structure* WebAssemblyWrapperFunction::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
ASSERT(globalObject);
return Structure::create(vm, globalObject, prototype, TypeInfo(JSFunctionType, StructureFlags), info());
}
template<typename Visitor>
void WebAssemblyWrapperFunction::visitChildrenImpl(JSCell* cell, Visitor& visitor)
{
WebAssemblyWrapperFunction* thisObject = jsCast<WebAssemblyWrapperFunction*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_function);
}
DEFINE_VISIT_CHILDREN(WebAssemblyWrapperFunction);
JSC_DEFINE_HOST_FUNCTION(callWebAssemblyWrapperFunction, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
WebAssemblyWrapperFunction* wasmFunction = jsCast<WebAssemblyWrapperFunction*>(callFrame->jsCallee());
JSObject* function = wasmFunction->function();
auto callData = JSC::getCallData(function);
RELEASE_ASSERT(callData.type != CallData::Type::None);
RELEASE_AND_RETURN(scope, JSValue::encode(call(globalObject, function, callData, jsUndefined(), ArgList(callFrame))));
}
JSC_DEFINE_HOST_FUNCTION(callWebAssemblyWrapperFunctionIncludingV128, (JSGlobalObject* globalObject, CallFrame*))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return throwVMTypeError(globalObject, scope, Wasm::errorMessageForExceptionType(Wasm::ExceptionType::TypeErrorInvalidV128Use));
}
} // namespace JSC
#endif // ENABLE(WEBASSEMBLY)
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