1/*
2 * Copyright (C) 2013 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 "MapPrototype.h"
28
29#include "CachedCall.h"
30#include "Error.h"
31#include "ExceptionHelpers.h"
32#include "GetterSetter.h"
33#include "JSCJSValueInlines.h"
34#include "JSFunctionInlines.h"
35#include "JSMap.h"
36#include "JSMapIterator.h"
37#include "MapData.h"
38#include "StructureInlines.h"
39
40namespace JSC {
41
42const ClassInfo MapPrototype::s_info = { "Map", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(MapPrototype) };
43
44static EncodedJSValue JSC_HOST_CALL mapProtoFuncClear(ExecState*);
45static EncodedJSValue JSC_HOST_CALL mapProtoFuncDelete(ExecState*);
46static EncodedJSValue JSC_HOST_CALL mapProtoFuncForEach(ExecState*);
47static EncodedJSValue JSC_HOST_CALL mapProtoFuncGet(ExecState*);
48static EncodedJSValue JSC_HOST_CALL mapProtoFuncHas(ExecState*);
49static EncodedJSValue JSC_HOST_CALL mapProtoFuncSet(ExecState*);
50static EncodedJSValue JSC_HOST_CALL mapProtoFuncKeys(ExecState*);
51static EncodedJSValue JSC_HOST_CALL mapProtoFuncValues(ExecState*);
52static EncodedJSValue JSC_HOST_CALL mapProtoFuncEntries(ExecState*);
53
54static EncodedJSValue JSC_HOST_CALL mapProtoFuncSize(ExecState*);
55
56void MapPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject)
57{
58    Base::finishCreation(vm);
59    ASSERT(inherits(info()));
60    vm.prototypeMap.addPrototype(this);
61
62    JSC_NATIVE_FUNCTION(vm.propertyNames->clear, mapProtoFuncClear, DontEnum, 0);
63    JSC_NATIVE_FUNCTION(vm.propertyNames->deleteKeyword, mapProtoFuncDelete, DontEnum, 1);
64    JSC_NATIVE_FUNCTION(vm.propertyNames->forEach, mapProtoFuncForEach, DontEnum, 1);
65    JSC_NATIVE_FUNCTION(vm.propertyNames->get, mapProtoFuncGet, DontEnum, 1);
66    JSC_NATIVE_FUNCTION(vm.propertyNames->has, mapProtoFuncHas, DontEnum, 1);
67    JSC_NATIVE_FUNCTION(vm.propertyNames->set, mapProtoFuncSet, DontEnum, 2);
68    JSC_NATIVE_FUNCTION(vm.propertyNames->keys, mapProtoFuncKeys, DontEnum, 0);
69    JSC_NATIVE_FUNCTION(vm.propertyNames->values, mapProtoFuncValues, DontEnum, 0);
70    JSC_NATIVE_FUNCTION(vm.propertyNames->entries, mapProtoFuncEntries, DontEnum, 0);
71    JSC_NATIVE_FUNCTION(vm.propertyNames->iteratorPrivateName, mapProtoFuncEntries, DontEnum, 0);
72
73    GetterSetter* accessor = GetterSetter::create(vm);
74    JSFunction* function = JSFunction::create(vm, globalObject, 0, vm.propertyNames->size.string(), mapProtoFuncSize);
75    accessor->setGetter(vm, function);
76    putDirectNonIndexAccessor(vm, vm.propertyNames->size, accessor, DontEnum | Accessor);
77}
78
79ALWAYS_INLINE static MapData* getMapData(CallFrame* callFrame, JSValue thisValue)
80{
81    if (!thisValue.isObject()) {
82        throwVMError(callFrame, createNotAnObjectError(callFrame, thisValue));
83        return 0;
84    }
85    JSMap* map = jsDynamicCast<JSMap*>(thisValue);
86    if (!map) {
87        throwTypeError(callFrame, ASCIILiteral("Map operation called on non-Map object"));
88        return 0;
89    }
90    return map->mapData();
91}
92
93EncodedJSValue JSC_HOST_CALL mapProtoFuncClear(CallFrame* callFrame)
94{
95    MapData* data = getMapData(callFrame, callFrame->thisValue());
96    if (!data)
97        return JSValue::encode(jsUndefined());
98    data->clear();
99    return JSValue::encode(jsUndefined());
100}
101
102EncodedJSValue JSC_HOST_CALL mapProtoFuncDelete(CallFrame* callFrame)
103{
104    MapData* data = getMapData(callFrame, callFrame->thisValue());
105    if (!data)
106        return JSValue::encode(jsUndefined());
107    return JSValue::encode(jsBoolean(data->remove(callFrame, callFrame->argument(0))));
108}
109
110EncodedJSValue JSC_HOST_CALL mapProtoFuncForEach(CallFrame* callFrame)
111{
112    MapData* data = getMapData(callFrame, callFrame->thisValue());
113    if (!data)
114        return JSValue::encode(jsUndefined());
115    JSValue callBack = callFrame->argument(0);
116    CallData callData;
117    CallType callType = getCallData(callBack, callData);
118    if (callType == CallTypeNone)
119        return JSValue::encode(throwTypeError(callFrame, WTF::ASCIILiteral("Map.prototype.forEach called without callback")));
120    JSValue thisValue = callFrame->argument(1);
121    VM* vm = &callFrame->vm();
122    if (callType == CallTypeJS) {
123        JSFunction* function = jsCast<JSFunction*>(callBack);
124        CachedCall cachedCall(callFrame, function, 2);
125        for (auto ptr = data->begin(), end = data->end(); ptr != end && !vm->exception(); ++ptr) {
126            cachedCall.setThis(thisValue);
127            cachedCall.setArgument(0, ptr.value());
128            cachedCall.setArgument(1, ptr.key());
129            cachedCall.call();
130        }
131    } else {
132        for (auto ptr = data->begin(), end = data->end(); ptr != end && !vm->exception(); ++ptr) {
133            MarkedArgumentBuffer args;
134            args.append(ptr.value());
135            args.append(ptr.key());
136            JSC::call(callFrame, callBack, callType, callData, thisValue, args);
137        }
138    }
139    return JSValue::encode(jsUndefined());
140}
141
142EncodedJSValue JSC_HOST_CALL mapProtoFuncGet(CallFrame* callFrame)
143{
144    MapData* data = getMapData(callFrame, callFrame->thisValue());
145    if (!data)
146        return JSValue::encode(jsUndefined());
147    JSValue result = data->get(callFrame, callFrame->argument(0));
148    if (!result)
149        result = jsUndefined();
150    return JSValue::encode(result);
151}
152
153EncodedJSValue JSC_HOST_CALL mapProtoFuncHas(CallFrame* callFrame)
154{
155    MapData* data = getMapData(callFrame, callFrame->thisValue());
156    if (!data)
157        return JSValue::encode(jsUndefined());
158    return JSValue::encode(jsBoolean(data->contains(callFrame, callFrame->argument(0))));
159}
160
161EncodedJSValue JSC_HOST_CALL mapProtoFuncSet(CallFrame* callFrame)
162{
163    MapData* data = getMapData(callFrame, callFrame->thisValue());
164    if (!data)
165        return JSValue::encode(jsUndefined());
166    data->set(callFrame, callFrame->argument(0), callFrame->argument(1));
167    return JSValue::encode(callFrame->thisValue());
168}
169
170EncodedJSValue JSC_HOST_CALL mapProtoFuncSize(CallFrame* callFrame)
171{
172    MapData* data = getMapData(callFrame, callFrame->thisValue());
173    if (!data)
174        return JSValue::encode(jsUndefined());
175    return JSValue::encode(jsNumber(data->size(callFrame)));
176}
177
178EncodedJSValue JSC_HOST_CALL mapProtoFuncValues(CallFrame* callFrame)
179{
180    JSMap* thisObj = jsDynamicCast<JSMap*>(callFrame->thisValue());
181    if (!thisObj)
182        return JSValue::encode(throwTypeError(callFrame, ASCIILiteral("Cannot create a Map value iterator for a non-Map object.")));
183    return JSValue::encode(JSMapIterator::create(callFrame->vm(), callFrame->callee()->globalObject()->mapIteratorStructure(), thisObj, MapIterateValue));
184}
185
186EncodedJSValue JSC_HOST_CALL mapProtoFuncEntries(CallFrame* callFrame)
187{
188    JSMap* thisObj = jsDynamicCast<JSMap*>(callFrame->thisValue());
189    if (!thisObj)
190        return JSValue::encode(throwTypeError(callFrame, ASCIILiteral("Cannot create a Map key iterator for a non-Map object.")));
191    return JSValue::encode(JSMapIterator::create(callFrame->vm(), callFrame->callee()->globalObject()->mapIteratorStructure(), thisObj, MapIterateKeyValue));
192}
193
194EncodedJSValue JSC_HOST_CALL mapProtoFuncKeys(CallFrame* callFrame)
195{
196    JSMap* thisObj = jsDynamicCast<JSMap*>(callFrame->thisValue());
197    if (!thisObj)
198        return JSValue::encode(throwTypeError(callFrame, ASCIILiteral("Cannot create a Map entry iterator for a non-Map object.")));
199    return JSValue::encode(JSMapIterator::create(callFrame->vm(), callFrame->callee()->globalObject()->mapIteratorStructure(), thisObj, MapIterateKey));
200}
201
202}
203