| /* |
| * 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 "WebAssemblyMemoryPrototype.h" |
| |
| #if ENABLE(WEBASSEMBLY) |
| |
| #include "AuxiliaryBarrierInlines.h" |
| #include "JSArrayBuffer.h" |
| #include "JSCJSValueInlines.h" |
| #include "JSGlobalObjectInlines.h" |
| #include "JSObjectInlines.h" |
| #include "JSWebAssemblyHelpers.h" |
| #include "JSWebAssemblyMemory.h" |
| #include "StructureInlines.h" |
| |
| namespace JSC { |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyMemoryProtoFuncGrow); |
| static JSC_DECLARE_CUSTOM_GETTER(webAssemblyMemoryProtoGetterBuffer); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyMemoryProtoFuncType); |
| } |
| |
| #include "WebAssemblyMemoryPrototype.lut.h" |
| |
| |
| namespace JSC { |
| |
| const ClassInfo WebAssemblyMemoryPrototype::s_info = { "WebAssembly.Memory", &Base::s_info, &prototypeTableWebAssemblyMemory, nullptr, CREATE_METHOD_TABLE(WebAssemblyMemoryPrototype) }; |
| |
| /* Source for WebAssemblyMemoryPrototype.lut.h |
| @begin prototypeTableWebAssemblyMemory |
| grow webAssemblyMemoryProtoFuncGrow Function 1 |
| buffer webAssemblyMemoryProtoGetterBuffer ReadOnly|CustomAccessor |
| type webAssemblyMemoryProtoFuncType Function 0 |
| @end |
| */ |
| |
| ALWAYS_INLINE JSWebAssemblyMemory* getMemory(JSGlobalObject* globalObject, VM& vm, JSValue value) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyMemory* memory = jsDynamicCast<JSWebAssemblyMemory*>(vm, value); |
| if (!memory) { |
| throwException(globalObject, throwScope, |
| createTypeError(globalObject, "WebAssembly.Memory.prototype.buffer getter called with non WebAssembly.Memory |this| value"_s)); |
| return nullptr; |
| } |
| return memory; |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyMemoryProtoFuncGrow, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyMemory* memory = getMemory(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, { }); |
| |
| uint32_t delta = toNonWrappingUint32(globalObject, callFrame->argument(0)); |
| RETURN_IF_EXCEPTION(throwScope, { }); |
| |
| Wasm::PageCount result = memory->grow(vm, globalObject, delta); |
| RETURN_IF_EXCEPTION(throwScope, { }); |
| |
| return JSValue::encode(jsNumber(result.pageCount())); |
| } |
| |
| JSC_DEFINE_CUSTOM_GETTER(webAssemblyMemoryProtoGetterBuffer, (JSGlobalObject* globalObject, EncodedJSValue thisValue, PropertyName)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyMemory* memory = getMemory(globalObject, vm, JSValue::decode(thisValue)); |
| RETURN_IF_EXCEPTION(throwScope, { }); |
| RELEASE_AND_RETURN(throwScope, JSValue::encode(memory->buffer(globalObject))); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyMemoryProtoFuncType, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyMemory* memory = getMemory(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, { }); |
| RELEASE_AND_RETURN(throwScope, JSValue::encode(memory->type(globalObject))); |
| } |
| |
| |
| WebAssemblyMemoryPrototype* WebAssemblyMemoryPrototype::create(VM& vm, JSGlobalObject*, Structure* structure) |
| { |
| auto* object = new (NotNull, allocateCell<WebAssemblyMemoryPrototype>(vm)) WebAssemblyMemoryPrototype(vm, structure); |
| object->finishCreation(vm); |
| return object; |
| } |
| |
| Structure* WebAssemblyMemoryPrototype::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype) |
| { |
| return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info()); |
| } |
| |
| void WebAssemblyMemoryPrototype::finishCreation(VM& vm) |
| { |
| Base::finishCreation(vm); |
| ASSERT(inherits(vm, info())); |
| JSC_TO_STRING_TAG_WITHOUT_TRANSITION(); |
| } |
| |
| WebAssemblyMemoryPrototype::WebAssemblyMemoryPrototype(VM& vm, Structure* structure) |
| : Base(vm, structure) |
| { |
| } |
| |
| } // namespace JSC |
| |
| #endif // ENABLE(WEBASSEMBLY) |