| /* |
| * Copyright (C) 2019-2021 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 "WebAssemblyGlobalPrototype.h" |
| |
| #if ENABLE(WEBASSEMBLY) |
| |
| #include "AuxiliaryBarrierInlines.h" |
| #include "GetterSetter.h" |
| #include "IntegrityInlines.h" |
| #include "JSCInlines.h" |
| #include "JSWebAssemblyGlobal.h" |
| |
| namespace JSC { |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyGlobalProtoFuncValueOf); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyGlobalProtoGetterFuncValue); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyGlobalProtoSetterFuncValue); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyGlobalProtoFuncType); |
| } |
| |
| #include "WebAssemblyGlobalPrototype.lut.h" |
| |
| namespace JSC { |
| |
| const ClassInfo WebAssemblyGlobalPrototype::s_info = { "WebAssembly.Global", &Base::s_info, &prototypeGlobalWebAssemblyGlobal, nullptr, CREATE_METHOD_TABLE(WebAssemblyGlobalPrototype) }; |
| |
| /* Source for WebAssemblyGlobalPrototype.lut.h |
| @begin prototypeGlobalWebAssemblyGlobal |
| valueOf webAssemblyGlobalProtoFuncValueOf Function 0 |
| type webAssemblyGlobalProtoFuncType Function 0 |
| |
| @end |
| */ |
| |
| static ALWAYS_INLINE JSWebAssemblyGlobal* getGlobal(JSGlobalObject* globalObject, VM& vm, JSValue v) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| JSWebAssemblyGlobal* result = jsDynamicCast<JSWebAssemblyGlobal*>(vm, v); |
| if (!result) { |
| throwException(globalObject, throwScope, |
| createTypeError(globalObject, "expected |this| value to be an instance of WebAssembly.Global"_s)); |
| return nullptr; |
| } |
| Integrity::auditStructureID(vm, result->structureID()); |
| return result; |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyGlobalProtoFuncValueOf, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyGlobal* global = getGlobal(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| RELEASE_AND_RETURN(throwScope, JSValue::encode(global->global()->get(globalObject))); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyGlobalProtoFuncType, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyGlobal* global = getGlobal(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| RELEASE_AND_RETURN(throwScope, JSValue::encode(global->type(globalObject))); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyGlobalProtoGetterFuncValue, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyGlobal* global = getGlobal(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| RELEASE_AND_RETURN(throwScope, JSValue::encode(global->global()->get(globalObject))); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyGlobalProtoSetterFuncValue, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| if (UNLIKELY(callFrame->argumentCount() < 1)) |
| return JSValue::encode(throwException(globalObject, throwScope, createNotEnoughArgumentsError(globalObject))); |
| |
| JSWebAssemblyGlobal* global = getGlobal(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| if (global->global()->mutability() == Wasm::GlobalInformation::Mutability::Immutable) |
| return JSValue::encode(throwException(globalObject, throwScope, createTypeError(globalObject, "WebAssembly.Global.prototype.value attempts to modify immutable global value"_s))); |
| |
| global->global()->set(globalObject, callFrame->argument(0)); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| return JSValue::encode(jsUndefined()); |
| } |
| |
| WebAssemblyGlobalPrototype* WebAssemblyGlobalPrototype::create(VM& vm, JSGlobalObject* globalObject, Structure* structure) |
| { |
| auto* object = new (NotNull, allocateCell<WebAssemblyGlobalPrototype>(vm)) WebAssemblyGlobalPrototype(vm, structure); |
| object->finishCreation(vm, globalObject); |
| return object; |
| } |
| |
| Structure* WebAssemblyGlobalPrototype::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype) |
| { |
| return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info()); |
| } |
| |
| void WebAssemblyGlobalPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject) |
| { |
| Base::finishCreation(vm); |
| ASSERT(inherits(vm, info())); |
| |
| JSFunction* valueGetterFunction = JSFunction::create(vm, globalObject, 0, "get value"_s, webAssemblyGlobalProtoGetterFuncValue, NoIntrinsic); |
| JSFunction* valueSetterFunction = JSFunction::create(vm, globalObject, 1, "set value"_s, webAssemblyGlobalProtoSetterFuncValue, NoIntrinsic); |
| GetterSetter* valueAccessor = GetterSetter::create(vm, globalObject, valueGetterFunction, valueSetterFunction); |
| putDirectNonIndexAccessorWithoutTransition(vm, Identifier::fromString(vm, "value"_s), valueAccessor, static_cast<unsigned>(PropertyAttribute::Accessor)); |
| JSC_TO_STRING_TAG_WITHOUT_TRANSITION(); |
| } |
| |
| WebAssemblyGlobalPrototype::WebAssemblyGlobalPrototype(VM& vm, Structure* structure) |
| : Base(vm, structure) |
| { |
| } |
| |
| } // namespace JSC |
| |
| #endif // ENABLE(WEBASSEMBLY) |