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513 lines (443 loc) · 26.4 KB
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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 "JSWebAssembly.h"
#if ENABLE(WEBASSEMBLY)
#include "AuxiliaryBarrierInlines.h"
#include "DeferredWorkTimer.h"
#include "Exception.h"
#include "GlobalObjectMethodTable.h"
#include "JSArrayBufferViewInlines.h"
#include "JSCBuiltins.h"
#include "JSGlobalObjectInlines.h"
#include "JSModuleNamespaceObject.h"
#include "JSObjectInlines.h"
#include "JSPromise.h"
#include "JSWebAssemblyCompileError.h"
#include "JSWebAssemblyHelpers.h"
#include "JSWebAssemblyInstance.h"
#include "JSWebAssemblyModule.h"
#include "JSWebAssemblyTag.h"
#include "ObjectConstructor.h"
#include "Options.h"
#include "StrongInlines.h"
#include "StructureInlines.h"
#include "ThrowScope.h"
#include "TopExceptionScope.h"
#include "WebAssemblyCompileOptions.h"
#include "WebAssemblyModuleRecord.h"
#include "WebAssemblyPromising.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(JSWebAssembly);
// Uses UNUSED_FUNCTION because some constructors, e.g., for Arrays are currently not exposed.
#define DEFINE_CALLBACK_FOR_CONSTRUCTOR(capitalName, lowerName, properName, instanceType, jsName, prototypeBase, featureFlag) \
static UNUSED_FUNCTION JSValue create##capitalName(VM&, JSObject* object) \
{ \
JSWebAssembly* webAssembly = jsCast<JSWebAssembly*>(object); \
JSGlobalObject* globalObject = webAssembly->realm(); \
return globalObject->properName##Constructor(); \
}
FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(DEFINE_CALLBACK_FOR_CONSTRUCTOR)
#undef DEFINE_CALLBACK_FOR_CONSTRUCTOR
static JSC_DECLARE_HOST_FUNCTION(webAssemblyCompileFunc);
static JSC_DECLARE_HOST_FUNCTION(webAssemblyInstantiateFunc);
static JSC_DECLARE_HOST_FUNCTION(webAssemblyPromisingFunc);
static JSC_DECLARE_HOST_FUNCTION(webAssemblyValidateFunc);
static JSC_DECLARE_HOST_FUNCTION(webAssemblyGetterJSTag);
static JSC_DECLARE_HOST_FUNCTION(webAssemblyGetterSuspending);
static JSC_DECLARE_HOST_FUNCTION(webAssemblyGetterSuspendError);
}
#include "JSWebAssembly.lut.h"
namespace JSC {
const ClassInfo JSWebAssembly::s_info = { "WebAssembly"_s, &Base::s_info, &webAssemblyTable, nullptr, CREATE_METHOD_TABLE(JSWebAssembly) };
/* Source for JSWebAssembly.lut.h
@begin webAssemblyTable
CompileError createWebAssemblyCompileError DontEnum|PropertyCallback
Exception createWebAssemblyException DontEnum|PropertyCallback
Global createWebAssemblyGlobal DontEnum|PropertyCallback
Instance createWebAssemblyInstance DontEnum|PropertyCallback
LinkError createWebAssemblyLinkError DontEnum|PropertyCallback
Memory createWebAssemblyMemory DontEnum|PropertyCallback
Module createWebAssemblyModule DontEnum|PropertyCallback
RuntimeError createWebAssemblyRuntimeError DontEnum|PropertyCallback
Table createWebAssemblyTable DontEnum|PropertyCallback
Tag createWebAssemblyTag DontEnum|PropertyCallback
compile webAssemblyCompileFunc Function 1
instantiate webAssemblyInstantiateFunc Function 1
validate webAssemblyValidateFunc Function 1
@end
*/
JSWebAssembly* JSWebAssembly::create(VM& vm, JSGlobalObject* globalObject, Structure* structure)
{
auto* object = new (NotNull, allocateCell<JSWebAssembly>(vm)) JSWebAssembly(vm, structure);
object->finishCreation(vm, globalObject);
return object;
}
Structure* JSWebAssembly::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
void JSWebAssembly::finishCreation(VM& vm, JSGlobalObject* globalObject)
{
Base::finishCreation(vm);
ASSERT(inherits(info()));
JSC_TO_STRING_TAG_WITHOUT_TRANSITION();
if (globalObject->globalObjectMethodTable()->compileStreaming)
JSC_BUILTIN_FUNCTION_WITHOUT_TRANSITION("compileStreaming"_s, webAssemblyCompileStreamingCodeGenerator, static_cast<unsigned>(0));
if (globalObject->globalObjectMethodTable()->instantiateStreaming)
JSC_BUILTIN_FUNCTION_WITHOUT_TRANSITION("instantiateStreaming"_s, webAssemblyInstantiateStreamingCodeGenerator, static_cast<unsigned>(0));
JSC_NATIVE_GETTER_WITHOUT_TRANSITION("JSTag"_s, webAssemblyGetterJSTag, PropertyAttribute::ReadOnly);
if (Options::useJSPI()) {
JSC_NATIVE_GETTER_WITHOUT_TRANSITION("Suspending"_s, webAssemblyGetterSuspending, PropertyAttribute::DontEnum);
JSC_NATIVE_GETTER_WITHOUT_TRANSITION("SuspendError"_s, webAssemblyGetterSuspendError, PropertyAttribute::DontEnum);
JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("promising"_s, webAssemblyPromisingFunc, static_cast<unsigned>(PropertyAttribute::None), 0, ImplementationVisibility::Public);
}
}
JSWebAssembly::JSWebAssembly(VM& vm, Structure* structure)
: JSNonFinalObject(vm, structure)
{
}
/**
* namespace WebAssembly {
* Promise<Module> compile(BufferSource bytes, optional WebAssemblyCompileOptions options);
* }
*
* See https://webassembly.github.io/js-string-builtins/js-api/#dom-webassembly-compile
*/
JSC_DEFINE_HOST_FUNCTION(webAssemblyCompileFunc, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto* promise = JSPromise::create(vm, globalObject->promiseStructure());
RETURN_IF_EXCEPTION(scope, { });
Vector<uint8_t> source = createSourceBufferFromValue(vm, globalObject, callFrame->argument(0));
RETURN_IF_EXCEPTION(scope, JSValue::encode(promise->rejectWithCaughtException(globalObject, scope)));
JSObject* compileOptionsObject = nullptr;
if (Options::useWasmJSStringBuiltins()) {
JSValue compileOptionsArgument = callFrame->argument(1);
compileOptionsObject = compileOptionsArgument.getObject();
if (!compileOptionsArgument.isUndefined() && !compileOptionsObject) [[unlikely]] {
auto error = createTypeError(globalObject, "second argument to WebAssembly.compile must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(compileOptionsArgument));
RELEASE_AND_RETURN(scope, JSValue::encode(JSPromise::rejectedPromise(globalObject, error)));
}
}
auto compileOptions = WebAssemblyCompileOptions::tryCreate(globalObject, compileOptionsObject);
RETURN_IF_EXCEPTION(scope, { });
scope.release();
JSWebAssembly::webAssemblyModuleValidateAsync(globalObject, promise, WTF::move(source), WTF::move(compileOptions));
return JSValue::encode(promise);
}
void JSWebAssembly::webAssemblyModuleValidateAsync(JSGlobalObject* globalObject, JSPromise* promise, Vector<uint8_t>&& source, std::optional<WebAssemblyCompileOptions>&& compileOptions)
{
VM& vm = globalObject->vm();
Vector<JSCell*> dependencies;
dependencies.append(globalObject);
auto ticket = vm.deferredWorkTimer->addPendingWork(DeferredWorkTimer::WorkType::ImminentlyScheduled, vm, promise, WTF::move(dependencies));
Wasm::Module::validateAsync(vm, WTF::move(source), createSharedTask<Wasm::Module::CallbackType>([ticket, promise, globalObject, compileOptions = WTF::move(compileOptions), &vm] (Wasm::Module::ValidationResult&& result) mutable {
vm.deferredWorkTimer->scheduleWorkSoon(ticket, [promise, globalObject, result = WTF::move(result), compileOptions = WTF::move(compileOptions), &vm](DeferredWorkTimer::Ticket) mutable {
auto scope = DECLARE_THROW_SCOPE(vm);
if (!result.has_value()) [[unlikely]] {
throwException(globalObject, scope, createJSWebAssemblyCompileError(globalObject, vm, result.error()));
promise->rejectWithCaughtException(globalObject, scope);
return;
}
if (compileOptions) {
auto errorMessage = compileOptions->validateBuiltinsAndImportedStrings(result.value());
if (errorMessage.has_value()) {
throwException(globalObject, scope, createJSWebAssemblyCompileError(globalObject, vm, errorMessage.value()));
promise->rejectWithCaughtException(globalObject, scope);
return;
}
result.value()->applyCompileOptions(compileOptions.value());
}
JSValue module = JSWebAssemblyModule::create(vm, globalObject->webAssemblyModuleStructure(), WTF::move(result.value()));
scope.release();
promise->resolve(globalObject, vm, module);
});
}));
}
enum class Resolve { WithInstance, WithModuleRecord, WithModuleAndInstance };
static void instantiate(VM& vm, JSGlobalObject* globalObject, JSPromise* promise, JSWebAssemblyModule* module, JSObject* importObject, RefPtr<SourceProvider>&& provider, const Identifier& moduleKey, Resolve resolveKind, Wasm::CreationMode creationMode, bool alwaysAsync)
{
auto scope = DECLARE_THROW_SCOPE(vm);
// In order to avoid potentially recompiling a module. We first gather all the import/memory information prior to compiling code.
// When called via the module loader, the memory is not available yet at this step, so we skip initializing the memory here.
JSWebAssemblyInstance* instance = JSWebAssemblyInstance::tryCreate(vm, globalObject->webAssemblyInstanceStructure(), globalObject, moduleKey, module, importObject, creationMode, WTF::move(provider));
if (scope.exception()) [[unlikely]] {
promise->rejectWithCaughtException(globalObject, scope);
return;
}
instance->initializeImports(globalObject, importObject, creationMode);
if (scope.exception()) [[unlikely]] {
promise->rejectWithCaughtException(globalObject, scope);
return;
}
Vector<JSCell*> dependencies;
// The instance keeps the module alive.
dependencies.append(promise);
scope.release();
auto ticket = vm.deferredWorkTimer->addPendingWork(DeferredWorkTimer::WorkType::ImminentlyScheduled, vm, instance, WTF::move(dependencies));
// Note: This completion task may or may not get called immediately.
module->module().compileAsync(vm, instance->memoryMode(), createSharedTask<Wasm::CalleeGroup::CallbackType>([ticket, promise, instance, module, resolveKind, creationMode, &vm, alwaysAsync] (Ref<Wasm::CalleeGroup>&& calleeGroup, bool isAsync) mutable {
auto callback = [promise, instance, module, resolveKind, creationMode, &vm, calleeGroup = WTF::move(calleeGroup)](DeferredWorkTimer::Ticket) mutable {
auto scope = DECLARE_THROW_SCOPE(vm);
JSGlobalObject* globalObject = instance->realm();
instance->finalizeCreation(vm, globalObject, WTF::move(calleeGroup), creationMode);
if (scope.exception()) [[unlikely]] {
promise->rejectWithCaughtException(globalObject, scope);
return;
}
scope.release();
switch (resolveKind) {
case Resolve::WithInstance: {
promise->resolve(globalObject, vm, instance);
break;
}
case Resolve::WithModuleRecord: {
auto* moduleRecord = instance->moduleRecord();
if (Options::dumpModuleRecord()) [[unlikely]]
moduleRecord->dump();
promise->resolve(globalObject, vm, moduleRecord);
break;
}
case Resolve::WithModuleAndInstance: {
JSObject* result = constructEmptyObject(globalObject);
result->putDirect(vm, Identifier::fromString(vm, "module"_s), module);
result->putDirect(vm, Identifier::fromString(vm, "instance"_s), instance);
promise->resolve(globalObject, vm, result);
break;
}
}
};
if (alwaysAsync || isAsync) {
vm.deferredWorkTimer->scheduleWorkSoon(ticket, WTF::move(callback));
return;
}
vm.deferredWorkTimer->cancelPendingWork(ticket);
callback(ticket);
}));
}
static void compileAndInstantiate(VM& vm, JSGlobalObject* globalObject, JSPromise* promise, const Identifier& moduleKey, JSValue buffer, JSObject* importObject, RefPtr<SourceProvider>&& sourceProvider, std::optional<WebAssemblyCompileOptions>&& compileOptions, Resolve resolveKind, Wasm::CreationMode creationMode)
{
auto scope = DECLARE_THROW_SCOPE(vm);
Vector<uint8_t> source = createSourceBufferFromValue(vm, globalObject, buffer);
if (scope.exception()) [[unlikely]] {
promise->rejectWithCaughtException(globalObject, scope);
return;
}
JSCell* moduleKeyCell = identifierToJSValue(vm, moduleKey).asCell();
Vector<JSCell*> dependencies;
if (importObject)
dependencies.append(importObject);
dependencies.append(moduleKeyCell);
auto ticket = vm.deferredWorkTimer->addPendingWork(DeferredWorkTimer::WorkType::ImminentlyScheduled, vm, promise, WTF::move(dependencies));
Wasm::Module::validateAsync(vm, WTF::move(source), createSharedTask<Wasm::Module::CallbackType>([ticket, promise, importObject, sourceProvider = WTF::move(sourceProvider), compileOptions = WTF::move(compileOptions), moduleKeyCell, globalObject, resolveKind, creationMode, &vm] (Wasm::Module::ValidationResult&& result) mutable {
vm.deferredWorkTimer->scheduleWorkSoon(ticket, [promise, importObject, sourceProvider = WTF::move(sourceProvider), compileOptions = WTF::move(compileOptions), moduleKeyCell, globalObject, result = WTF::move(result), resolveKind, creationMode, &vm](DeferredWorkTimer::Ticket) mutable {
auto scope = DECLARE_THROW_SCOPE(vm);
if (!result.has_value()) [[unlikely]] {
throwException(globalObject, scope, createJSWebAssemblyCompileError(globalObject, vm, result.error()));
promise->rejectWithCaughtException(globalObject, scope);
return;
}
if (compileOptions) {
auto errorMessage = compileOptions->validateBuiltinsAndImportedStrings(result.value());
if (errorMessage.has_value()) {
throwException(globalObject, scope, createJSWebAssemblyCompileError(globalObject, vm, errorMessage.value()));
promise->rejectWithCaughtException(globalObject, scope);
return;
}
result.value()->applyCompileOptions(compileOptions.value());
}
JSWebAssemblyModule* module = JSWebAssemblyModule::create(vm, globalObject->webAssemblyModuleStructure(), WTF::move(result.value()));
const Identifier moduleKey = JSValue(moduleKeyCell).toPropertyKey(globalObject);
if (scope.exception()) [[unlikely]] {
promise->rejectWithCaughtException(globalObject, scope);
return;
}
instantiate(vm, globalObject, promise, module, importObject, WTF::move(sourceProvider), moduleKey, resolveKind, creationMode, /* alwaysAsync */ false);
if (scope.exception()) [[unlikely]] {
promise->rejectWithCaughtException(globalObject, scope);
return;
}
});
}));
}
JSValue JSWebAssembly::instantiate(JSGlobalObject* globalObject, JSPromise* promise, RefPtr<SourceProvider>&& sourceProvider, const Identifier& moduleKey, JSValue argument)
{
VM& vm = globalObject->vm();
compileAndInstantiate(vm, globalObject, promise, moduleKey, argument, nullptr, WTF::move(sourceProvider), std::nullopt, Resolve::WithModuleRecord, Wasm::CreationMode::FromModuleLoader);
return promise;
}
void JSWebAssembly::instantiateForStreaming(VM& vm, JSGlobalObject* globalObject, JSPromise* promise, JSWebAssemblyModule* module, JSObject* importObject, RefPtr<SourceProvider>&& sourceProvider)
{
JSC::instantiate(vm, globalObject, promise, module, importObject, WTF::move(sourceProvider), JSWebAssemblyInstance::createPrivateModuleKey(), Resolve::WithModuleAndInstance, Wasm::CreationMode::FromJS, /* alwaysAsync */ true);
}
/**
* This implements two standard APIs:
*
* namespace WebAssembly {
* Promise<WebAssemblyInstantiatedSource> instantiate(BufferSource bytes, optional object importObject, optional WebAssemblyCompileOptions options);
* Promise<Instance> instantiate(Module moduleObject, optional object importObject);
* }
*
* See:
* - https://webassembly.github.io/js-string-builtins/js-api/#dom-webassembly-instantiate
* - https://webassembly.github.io/js-string-builtins/js-api/#dom-webassembly-instantiate-moduleobject-importobject
*/
JSC_DEFINE_HOST_FUNCTION(webAssemblyInstantiateFunc, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto [taintedness, url] = sourceTaintedOriginFromStack(vm, callFrame);
RefPtr<SourceProvider> provider = StringSourceProvider::create("[wasm code]"_s, SourceOrigin(url), String(), taintedness, TextPosition(), SourceProviderSourceType::Program);
auto* promise = JSPromise::create(vm, globalObject->promiseStructure());
JSValue importArgument = callFrame->argument(1);
JSObject* importObject = importArgument.getObject();
if (!importArgument.isUndefined() && !importObject) [[unlikely]]
RELEASE_AND_RETURN(scope, JSValue::encode(JSPromise::rejectedPromise(globalObject, createTypeError(globalObject, "second argument to WebAssembly.instantiate must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(importArgument)))));
JSObject* compileOptionsObject = nullptr;
if (Options::useWasmJSStringBuiltins()) {
JSValue compileOptionsArgument = callFrame->argument(2);
compileOptionsObject = compileOptionsArgument.getObject();
if (!compileOptionsArgument.isUndefined() && !compileOptionsObject) [[unlikely]] {
auto error = createTypeError(globalObject, "third argument to WebAssembly.instantiate must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(compileOptionsArgument));
RELEASE_AND_RETURN(scope, JSValue::encode(JSPromise::rejectedPromise(globalObject, error)));
}
}
JSValue firstArgument = callFrame->argument(0);
if (firstArgument.inherits<JSWebAssemblyModule>())
instantiate(vm, globalObject, promise, jsCast<JSWebAssemblyModule*>(firstArgument), importObject, WTF::move(provider), JSWebAssemblyInstance::createPrivateModuleKey(), Resolve::WithInstance, Wasm::CreationMode::FromJS, /* alwaysAsync */ true);
else {
auto compileOptions = WebAssemblyCompileOptions::tryCreate(globalObject, compileOptionsObject);
RETURN_IF_EXCEPTION(scope, { });
compileAndInstantiate(vm, globalObject, promise, JSWebAssemblyInstance::createPrivateModuleKey(), firstArgument, importObject, WTF::move(provider), WTF::move(compileOptions), Resolve::WithModuleAndInstance, Wasm::CreationMode::FromJS);
}
RELEASE_AND_RETURN(scope, JSValue::encode(promise));
}
JSC_DEFINE_HOST_FUNCTION(webAssemblyPromisingFunc, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSValue arg = callFrame->argument(0);
auto* wrapped = jsDynamicCast<WebAssemblyFunctionBase*>(arg);
if (!wrapped) [[unlikely]]
return JSValue::encode(throwTypeError(globalObject, scope, "Argument 0 must be a WebAssembly exported function"_s));
auto* wrapper = createWebAssemblyPromisingFunction(vm, globalObject, wrapped);
RELEASE_AND_RETURN(scope, JSValue::encode(wrapper));
}
/**
* namespace WebAssembly {
* boolean validate(BufferSource bytes, optional WebAssemblyCompileOptions options);
* }
*
* See https://webassembly.github.io/js-string-builtins/js-api/#dom-webassembly-validate
*/
JSC_DEFINE_HOST_FUNCTION(webAssemblyValidateFunc, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
// FIXME: We might want to throw an OOM exception here if we detect that something will OOM.
// https://bugs.webkit.org/show_bug.cgi?id=166015
Vector<uint8_t> source = createSourceBufferFromValue(vm, globalObject, callFrame->argument(0));
RETURN_IF_EXCEPTION(scope, encodedJSValue());
JSObject* compileOptionsObject = nullptr;
if (Options::useWasmJSStringBuiltins()) {
JSValue compileOptionsArgument = callFrame->argument(1);
compileOptionsObject = compileOptionsArgument.getObject();
if (!compileOptionsArgument.isUndefined() && !compileOptionsObject) [[unlikely]] {
auto error = createTypeError(globalObject, "second argument to WebAssembly.validate must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(compileOptionsArgument));
return JSValue::encode(throwException(globalObject, scope, error));
}
}
auto validationResult = Wasm::Module::validateSync(vm, WTF::move(source));
bool success = validationResult.has_value();
if (success) {
auto compileOptions = WebAssemblyCompileOptions::tryCreate(globalObject, compileOptionsObject);
RETURN_IF_EXCEPTION(scope, { });
if (compileOptions) {
auto errorMessage = compileOptions->validateBuiltinsAndImportedStrings(validationResult.value());
success = !errorMessage.has_value();
}
}
return JSValue::encode(jsBoolean(success));
}
JSC_DEFINE_HOST_FUNCTION(webAssemblyCompileStreamingInternal, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
std::optional<WebAssemblyCompileOptions> compileOptions;
if (Options::useWasmJSStringBuiltins()) {
JSValue compileOptionsArgument = callFrame->argument(1);
JSObject* compileOptionsObject = compileOptionsArgument.getObject();
if (!compileOptionsArgument.isUndefined() && !compileOptionsObject) [[unlikely]]
RELEASE_AND_RETURN(scope, JSValue::encode(JSPromise::rejectedPromise(globalObject, createTypeError(globalObject, "second argument to WebAssembly.compileStreaming must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(compileOptionsArgument)))));
compileOptions = WebAssemblyCompileOptions::tryCreate(globalObject, compileOptionsObject);
if (scope.exception()) [[unlikely]] {
auto* promise = JSPromise::create(vm, globalObject->promiseStructure());
RELEASE_AND_RETURN(scope, JSValue::encode(promise->rejectWithCaughtException(globalObject, scope)));
}
}
ASSERT(globalObject->globalObjectMethodTable()->compileStreaming);
RELEASE_AND_RETURN(scope, JSValue::encode(globalObject->globalObjectMethodTable()->compileStreaming(globalObject, callFrame->argument(0), WTF::move(compileOptions))));
}
JSC_DEFINE_HOST_FUNCTION(webAssemblyInstantiateStreamingInternal, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSValue importArgument = callFrame->argument(1);
JSObject* importObject = importArgument.getObject();
if (!importArgument.isUndefined() && !importObject) [[unlikely]]
RELEASE_AND_RETURN(scope, JSValue::encode(JSPromise::rejectedPromise(globalObject, createTypeError(globalObject, "second argument to WebAssembly.instantiateStreaming must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(importArgument)))));
std::optional<WebAssemblyCompileOptions> compileOptions;
if (Options::useWasmJSStringBuiltins()) {
JSValue compileOptionsArgument = callFrame->argument(2);
JSObject* compileOptionsObject = compileOptionsArgument.getObject();
if (!compileOptionsArgument.isUndefined() && !compileOptionsObject) [[unlikely]]
RELEASE_AND_RETURN(scope, JSValue::encode(JSPromise::rejectedPromise(globalObject, createTypeError(globalObject, "third argument to WebAssembly.instantiateStreaming must be undefined or an Object"_s, defaultSourceAppender, runtimeTypeForValue(compileOptionsArgument)))));
compileOptions = WebAssemblyCompileOptions::tryCreate(globalObject, compileOptionsObject);
if (scope.exception()) [[unlikely]] {
auto* promise = JSPromise::create(vm, globalObject->promiseStructure());
RELEASE_AND_RETURN(scope, JSValue::encode(promise->rejectWithCaughtException(globalObject, scope)));
}
}
ASSERT(globalObject->globalObjectMethodTable()->instantiateStreaming);
// FIXME: <http://webkit.org/b/184888> if there's an importObject and it contains a Memory, then we can compile the module with the right memory type (fast or not) by looking at the memory's type.
RELEASE_AND_RETURN(scope, JSValue::encode(globalObject->globalObjectMethodTable()->instantiateStreaming(globalObject, callFrame->argument(0), importObject, WTF::move(compileOptions))));
}
JSC_DEFINE_HOST_FUNCTION(webAssemblyGetterJSTag, (JSGlobalObject* globalObject, CallFrame*))
{
// https://webassembly.github.io/exception-handling/js-api/#dom-webassembly-jstag
return JSValue::encode(globalObject->webAssemblyJSTag());
}
JSC_DEFINE_HOST_FUNCTION(webAssemblyGetterSuspending, (JSGlobalObject* globalObject, CallFrame*))
{
return JSValue::encode(globalObject->webAssemblySuspendingConstructor());
}
JSC_DEFINE_HOST_FUNCTION(webAssemblyGetterSuspendError, (JSGlobalObject* globalObject, CallFrame*))
{
return JSValue::encode(globalObject->webAssemblySuspendErrorConstructor());
}
} // namespace JSC
#endif // ENABLE(WEBASSEMBLY)