| /* |
| * Copyright (C) 2015-2019 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 "WeakSetPrototype.h" |
| |
| #include "JSCInlines.h" |
| #include "JSWeakSet.h" |
| |
| namespace JSC { |
| |
| const ClassInfo WeakSetPrototype::s_info = { "WeakSet", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(WeakSetPrototype) }; |
| |
| static EncodedJSValue JSC_HOST_CALL protoFuncWeakSetDelete(JSGlobalObject*, CallFrame*); |
| static EncodedJSValue JSC_HOST_CALL protoFuncWeakSetHas(JSGlobalObject*, CallFrame*); |
| static EncodedJSValue JSC_HOST_CALL protoFuncWeakSetAdd(JSGlobalObject*, CallFrame*); |
| |
| void WeakSetPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject) |
| { |
| Base::finishCreation(vm); |
| ASSERT(inherits(vm, info())); |
| |
| JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->deleteKeyword, protoFuncWeakSetDelete, static_cast<unsigned>(PropertyAttribute::DontEnum), 1); |
| JSC_NATIVE_INTRINSIC_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->has, protoFuncWeakSetHas, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, JSWeakSetHasIntrinsic); |
| JSC_NATIVE_INTRINSIC_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->add, protoFuncWeakSetAdd, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, JSWeakSetAddIntrinsic); |
| |
| putDirectWithoutTransition(vm, vm.propertyNames->toStringTagSymbol, jsString(vm, "WeakSet"), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly); |
| } |
| |
| ALWAYS_INLINE static JSWeakSet* getWeakSet(CallFrame* callFrame, JSGlobalObject* globalObject, JSValue value) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| if (UNLIKELY(!value.isObject())) { |
| throwTypeError(callFrame, scope, "Called WeakSet function on non-object"_s); |
| return nullptr; |
| } |
| |
| auto* set = jsDynamicCast<JSWeakSet*>(vm, asObject(value)); |
| if (LIKELY(set)) |
| return set; |
| |
| throwTypeError(callFrame, scope, "Called WeakSet function on a non-WeakSet object"_s); |
| return nullptr; |
| } |
| |
| EncodedJSValue JSC_HOST_CALL protoFuncWeakSetDelete(JSGlobalObject* globalObject, CallFrame* callFrame) |
| { |
| auto* set = getWeakSet(callFrame, globalObject, callFrame->thisValue()); |
| if (!set) |
| return JSValue::encode(jsUndefined()); |
| JSValue key = callFrame->argument(0); |
| return JSValue::encode(jsBoolean(key.isObject() && set->remove(asObject(key)))); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL protoFuncWeakSetHas(JSGlobalObject* globalObject, CallFrame* callFrame) |
| { |
| auto* set = getWeakSet(callFrame, globalObject, callFrame->thisValue()); |
| if (!set) |
| return JSValue::encode(jsUndefined()); |
| JSValue key = callFrame->argument(0); |
| return JSValue::encode(jsBoolean(key.isObject() && set->has(asObject(key)))); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL protoFuncWeakSetAdd(JSGlobalObject* globalObject, CallFrame* callFrame) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| auto* set = getWeakSet(callFrame, globalObject, callFrame->thisValue()); |
| EXCEPTION_ASSERT(!!scope.exception() == !set); |
| if (!set) |
| return JSValue::encode(jsUndefined()); |
| JSValue key = callFrame->argument(0); |
| if (!key.isObject()) |
| return JSValue::encode(throwTypeError(callFrame, scope, "Attempted to add a non-object key to a WeakSet"_s)); |
| set->add(vm, asObject(key)); |
| return JSValue::encode(callFrame->thisValue()); |
| } |
| |
| } |