1/*
2 * Copyright (C) 2013-2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "SetConstructor.h"
28
29#include "Error.h"
30#include "GetterSetter.h"
31#include "IteratorOperations.h"
32#include "JSCInlines.h"
33#include "JSGlobalObject.h"
34#include "JSObjectInlines.h"
35#include "JSSet.h"
36#include "SetPrototype.h"
37
38namespace JSC {
39
40const ClassInfo SetConstructor::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(SetConstructor) };
41
42void SetConstructor::finishCreation(VM& vm, SetPrototype* setPrototype, GetterSetter* speciesSymbol)
43{
44 Base::finishCreation(vm, vm.propertyNames->Set.string(), NameAdditionMode::WithoutStructureTransition);
45 putDirectWithoutTransition(vm, vm.propertyNames->prototype, setPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
46 putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
47 putDirectNonIndexAccessorWithoutTransition(vm, vm.propertyNames->speciesSymbol, speciesSymbol, PropertyAttribute::Accessor | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum);
48}
49
50static EncodedJSValue JSC_HOST_CALL callSet(JSGlobalObject*, CallFrame*);
51static EncodedJSValue JSC_HOST_CALL constructSet(JSGlobalObject*, CallFrame*);
52
53SetConstructor::SetConstructor(VM& vm, Structure* structure)
54 : Base(vm, structure, callSet, constructSet)
55{
56}
57
58static EncodedJSValue JSC_HOST_CALL callSet(JSGlobalObject* globalObject, CallFrame*)
59{
60 VM& vm = globalObject->vm();
61 auto scope = DECLARE_THROW_SCOPE(vm);
62 return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "Set"));
63}
64
65static EncodedJSValue JSC_HOST_CALL constructSet(JSGlobalObject* globalObject, CallFrame* callFrame)
66{
67 VM& vm = globalObject->vm();
68 auto scope = DECLARE_THROW_SCOPE(vm);
69
70 Structure* setStructure = InternalFunction::createSubclassStructure(globalObject, callFrame->jsCallee(), callFrame->newTarget(), globalObject->setStructure());
71 RETURN_IF_EXCEPTION(scope, encodedJSValue());
72
73 JSValue iterable = callFrame->argument(0);
74 if (iterable.isUndefinedOrNull())
75 RELEASE_AND_RETURN(scope, JSValue::encode(JSSet::create(globalObject, vm, setStructure)));
76
77 if (auto* iterableSet = jsDynamicCast<JSSet*>(vm, iterable)) {
78 if (iterableSet->canCloneFastAndNonObservable(setStructure))
79 RELEASE_AND_RETURN(scope, JSValue::encode(iterableSet->clone(globalObject, vm, setStructure)));
80 }
81
82 JSSet* set = JSSet::create(globalObject, vm, setStructure);
83 RETURN_IF_EXCEPTION(scope, encodedJSValue());
84
85 JSValue adderFunction = set->JSObject::get(globalObject, vm.propertyNames->add);
86 RETURN_IF_EXCEPTION(scope, encodedJSValue());
87
88 CallData adderFunctionCallData;
89 CallType adderFunctionCallType = getCallData(vm, adderFunction, adderFunctionCallData);
90 if (UNLIKELY(adderFunctionCallType == CallType::None))
91 return JSValue::encode(throwTypeError(globalObject, scope));
92
93 scope.release();
94 forEachInIterable(globalObject, iterable, [&](VM&, JSGlobalObject* globalObject, JSValue nextValue) {
95 MarkedArgumentBuffer arguments;
96 arguments.append(nextValue);
97 ASSERT(!arguments.hasOverflowed());
98 call(globalObject, adderFunction, adderFunctionCallType, adderFunctionCallData, set, arguments);
99 });
100
101 return JSValue::encode(set);
102}
103
104EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketHead(JSGlobalObject* globalObject, CallFrame* callFrame)
105{
106 ASSERT_UNUSED(globalObject, jsDynamicCast<JSSet*>(globalObject->vm(), callFrame->argument(0)));
107 JSSet* set = jsCast<JSSet*>(callFrame->uncheckedArgument(0));
108 auto* head = set->head();
109 ASSERT(head);
110 return JSValue::encode(head);
111}
112
113EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketNext(JSGlobalObject* globalObject, CallFrame* callFrame)
114{
115 ASSERT(jsDynamicCast<JSSet::BucketType*>(globalObject->vm(), callFrame->argument(0)));
116 auto* bucket = jsCast<JSSet::BucketType*>(callFrame->uncheckedArgument(0));
117 ASSERT(bucket);
118 bucket = bucket->next();
119 while (bucket) {
120 if (!bucket->deleted())
121 return JSValue::encode(bucket);
122 bucket = bucket->next();
123 }
124 return JSValue::encode(globalObject->vm().sentinelSetBucket());
125}
126
127EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketKey(JSGlobalObject* globalObject, CallFrame* callFrame)
128{
129 ASSERT_UNUSED(globalObject, jsDynamicCast<JSSet::BucketType*>(globalObject->vm(), callFrame->argument(0)));
130 auto* bucket = jsCast<JSSet::BucketType*>(callFrame->uncheckedArgument(0));
131 ASSERT(bucket);
132 return JSValue::encode(bucket->key());
133}
134
135}
136