| /* |
| * Copyright (C) 2016-2018 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 "WebAssemblyTablePrototype.h" |
| |
| #if ENABLE(WEBASSEMBLY) |
| |
| #include "AuxiliaryBarrierInlines.h" |
| #include "JSCJSValueInlines.h" |
| #include "JSGlobalObjectInlines.h" |
| #include "JSObjectInlines.h" |
| #include "JSWebAssemblyHelpers.h" |
| #include "JSWebAssemblyTable.h" |
| #include "StructureInlines.h" |
| |
| namespace JSC { |
| static JSC_DECLARE_CUSTOM_GETTER(webAssemblyTableProtoGetterLength); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyTableProtoFuncGrow); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyTableProtoFuncGet); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyTableProtoFuncSet); |
| static JSC_DECLARE_HOST_FUNCTION(webAssemblyTableProtoFuncType); |
| } |
| |
| #include "WebAssemblyTablePrototype.lut.h" |
| |
| namespace JSC { |
| |
| const ClassInfo WebAssemblyTablePrototype::s_info = { "WebAssembly.Table", &Base::s_info, &prototypeTableWebAssemblyTable, nullptr, CREATE_METHOD_TABLE(WebAssemblyTablePrototype) }; |
| |
| /* Source for WebAssemblyTablePrototype.lut.h |
| @begin prototypeTableWebAssemblyTable |
| length webAssemblyTableProtoGetterLength ReadOnly|CustomAccessor |
| grow webAssemblyTableProtoFuncGrow Function 1 |
| get webAssemblyTableProtoFuncGet Function 1 |
| set webAssemblyTableProtoFuncSet Function 2 |
| type webAssemblyTableProtoFuncType Function 0 |
| @end |
| */ |
| |
| static ALWAYS_INLINE JSWebAssemblyTable* getTable(JSGlobalObject* globalObject, VM& vm, JSValue v) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| JSWebAssemblyTable* result = jsDynamicCast<JSWebAssemblyTable*>(vm, v); |
| if (!result) { |
| throwException(globalObject, throwScope, |
| createTypeError(globalObject, "expected |this| value to be an instance of WebAssembly.Table"_s)); |
| return nullptr; |
| } |
| return result; |
| } |
| |
| JSC_DEFINE_CUSTOM_GETTER(webAssemblyTableProtoGetterLength, (JSGlobalObject* globalObject, EncodedJSValue thisValue, PropertyName)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyTable* table = getTable(globalObject, vm, JSValue::decode(thisValue)); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| return JSValue::encode(jsNumber(table->length())); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyTableProtoFuncGrow, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyTable* table = getTable(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| uint32_t delta = toNonWrappingUint32(globalObject, callFrame->argument(0)); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| JSValue defaultValue = jsNull(); |
| if (callFrame->argumentCount() < 2) |
| defaultValue = defaultValueForReferenceType(table->table()->wasmType()); |
| else |
| defaultValue = callFrame->uncheckedArgument(1); |
| |
| if (table->table()->isFuncrefTable() && !defaultValue.isNull() && !isWebAssemblyHostFunction(vm, defaultValue)) |
| return throwVMTypeError(globalObject, throwScope, "WebAssembly.Table.prototype.grow expects the second argument to be null or an instance of WebAssembly.Function"_s); |
| uint32_t oldLength = table->length(); |
| |
| if (!table->grow(delta, defaultValue)) |
| return throwVMRangeError(globalObject, throwScope, "WebAssembly.Table.prototype.grow could not grow the table"_s); |
| |
| return JSValue::encode(jsNumber(oldLength)); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyTableProtoFuncGet, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyTable* table = getTable(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| uint32_t index = toNonWrappingUint32(globalObject, callFrame->argument(0)); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| if (index >= table->length()) |
| return throwVMRangeError(globalObject, throwScope, "WebAssembly.Table.prototype.get expects an integer less than the length of the table"_s); |
| |
| return JSValue::encode(table->get(index)); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyTableProtoFuncSet, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyTable* table = getTable(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| uint32_t index = toNonWrappingUint32(globalObject, callFrame->argument(0)); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| |
| if (index >= table->length()) |
| return throwVMRangeError(globalObject, throwScope, "WebAssembly.Table.prototype.set expects an integer less than the length of the table"_s); |
| |
| JSValue value = callFrame->argument(1); |
| if (callFrame->argumentCount() < 2) |
| value = defaultValueForReferenceType(table->table()->wasmType()); |
| |
| if (table->table()->asFuncrefTable()) { |
| WebAssemblyFunction* wasmFunction = nullptr; |
| WebAssemblyWrapperFunction* wasmWrapperFunction = nullptr; |
| if (!value.isNull() && !isWebAssemblyHostFunction(vm, value, wasmFunction, wasmWrapperFunction)) |
| return throwVMTypeError(globalObject, throwScope, "WebAssembly.Table.prototype.set expects the second argument to be null or an instance of WebAssembly.Function"_s); |
| |
| if (value.isNull()) |
| table->clear(index); |
| else { |
| ASSERT(value.isObject() && isWebAssemblyHostFunction(vm, jsCast<JSObject*>(value), wasmFunction, wasmWrapperFunction)); |
| ASSERT(!!wasmFunction || !!wasmWrapperFunction); |
| if (wasmFunction) |
| table->set(index, wasmFunction); |
| else |
| table->set(index, wasmWrapperFunction); |
| } |
| } else |
| table->set(index, value); |
| |
| return JSValue::encode(jsUndefined()); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(webAssemblyTableProtoFuncType, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto throwScope = DECLARE_THROW_SCOPE(vm); |
| |
| JSWebAssemblyTable* table = getTable(globalObject, vm, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(throwScope, encodedJSValue()); |
| RELEASE_AND_RETURN(throwScope, JSValue::encode(table->type(globalObject))); |
| } |
| |
| WebAssemblyTablePrototype* WebAssemblyTablePrototype::create(VM& vm, JSGlobalObject*, Structure* structure) |
| { |
| auto* object = new (NotNull, allocateCell<WebAssemblyTablePrototype>(vm.heap)) WebAssemblyTablePrototype(vm, structure); |
| object->finishCreation(vm); |
| return object; |
| } |
| |
| Structure* WebAssemblyTablePrototype::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype) |
| { |
| return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info()); |
| } |
| |
| void WebAssemblyTablePrototype::finishCreation(VM& vm) |
| { |
| Base::finishCreation(vm); |
| ASSERT(inherits(vm, info())); |
| JSC_TO_STRING_TAG_WITHOUT_TRANSITION(); |
| } |
| |
| WebAssemblyTablePrototype::WebAssemblyTablePrototype(VM& vm, Structure* structure) |
| : Base(vm, structure) |
| { |
| } |
| |
| } // namespace JSC |
| |
| #endif // ENABLE(WEBASSEMBLY) |