108 lines
4.3 KiB
C++
108 lines
4.3 KiB
C++
/*
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* Copyright (C) 2015-2019 Apple, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "WeakSetPrototype.h"
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#include "HashMapImplInlines.h"
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#include "JSCInlines.h"
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#include "JSWeakSet.h"
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#include "WeakMapImplInlines.h"
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namespace JSC {
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const ASCIILiteral WeakSetNonObjectValueError { "Attempted to add a non-object value to a WeakSet"_s };
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const ClassInfo WeakSetPrototype::s_info = { "WeakSet", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(WeakSetPrototype) };
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static JSC_DECLARE_HOST_FUNCTION(protoFuncWeakSetDelete);
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static JSC_DECLARE_HOST_FUNCTION(protoFuncWeakSetHas);
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void WeakSetPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject)
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{
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Base::finishCreation(vm);
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ASSERT(inherits(vm, info()));
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JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->deleteKeyword, protoFuncWeakSetDelete, static_cast<unsigned>(PropertyAttribute::DontEnum), 1);
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JSC_NATIVE_INTRINSIC_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->has, protoFuncWeakSetHas, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, JSWeakSetHasIntrinsic);
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JSC_NATIVE_INTRINSIC_FUNCTION_WITHOUT_TRANSITION(vm.propertyNames->add, protoFuncWeakSetAdd, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, JSWeakSetAddIntrinsic);
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JSC_TO_STRING_TAG_WITHOUT_TRANSITION();
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}
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ALWAYS_INLINE static JSWeakSet* getWeakSet(JSGlobalObject* globalObject, JSValue value)
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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if (UNLIKELY(!value.isObject())) {
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throwTypeError(globalObject, scope, "Called WeakSet function on non-object"_s);
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return nullptr;
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}
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auto* set = jsDynamicCast<JSWeakSet*>(vm, asObject(value));
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if (LIKELY(set))
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return set;
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throwTypeError(globalObject, scope, "Called WeakSet function on a non-WeakSet object"_s);
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return nullptr;
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}
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JSC_DEFINE_HOST_FUNCTION(protoFuncWeakSetDelete, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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auto* set = getWeakSet(globalObject, callFrame->thisValue());
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if (!set)
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return JSValue::encode(jsUndefined());
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JSValue key = callFrame->argument(0);
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return JSValue::encode(jsBoolean(key.isObject() && set->remove(asObject(key))));
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}
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JSC_DEFINE_HOST_FUNCTION(protoFuncWeakSetHas, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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auto* set = getWeakSet(globalObject, callFrame->thisValue());
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if (!set)
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return JSValue::encode(jsUndefined());
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JSValue key = callFrame->argument(0);
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return JSValue::encode(jsBoolean(key.isObject() && set->has(asObject(key))));
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}
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JSC_DEFINE_HOST_FUNCTION(protoFuncWeakSetAdd, (JSGlobalObject* globalObject, CallFrame* callFrame))
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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auto* set = getWeakSet(globalObject, callFrame->thisValue());
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EXCEPTION_ASSERT(!!scope.exception() == !set);
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if (!set)
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return JSValue::encode(jsUndefined());
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JSValue key = callFrame->argument(0);
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if (!key.isObject())
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return JSValue::encode(throwTypeError(globalObject, scope, WeakSetNonObjectValueError));
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set->add(vm, asObject(key));
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return JSValue::encode(callFrame->thisValue());
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}
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}
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