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1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "ecmascript/js_proxy.h"
17 
18 #include "ecmascript/ecma_macros.h"
19 #include "ecmascript/global_env.h"
20 #include "ecmascript/interpreter/interpreter.h"
21 #include "ecmascript/js_array.h"
22 #include "ecmascript/js_handle.h"
23 #include "ecmascript/object_factory.h"
24 
25 namespace panda::ecmascript {
26 // ES6 9.5.15 ProxyCreate(target, handler)
ProxyCreate(JSThread * thread,const JSHandle<JSTaggedValue> & target,const JSHandle<JSTaggedValue> & handler)27 JSHandle<JSProxy> JSProxy::ProxyCreate(JSThread *thread, const JSHandle<JSTaggedValue> &target,
28                                        const JSHandle<JSTaggedValue> &handler)
29 {
30     // 1. If Type(target) is not Object, throw a TypeError exception.
31     if (!target->IsECMAObject()) {
32         THROW_TYPE_ERROR_AND_RETURN(thread, "ProxyCreate: target is not Object",
33                                     JSHandle<JSProxy>(thread, JSTaggedValue::Exception()));
34     }
35 
36     // 2. If Type(handler) is not Object, throw a TypeError exception.
37     if (!handler->IsECMAObject()) {
38         THROW_TYPE_ERROR_AND_RETURN(thread, "ProxyCreate: handler is not Object",
39                                     JSHandle<JSProxy>(thread, JSTaggedValue::Exception()));
40     }
41     // 3. Let P be ! MakeBasicObject(« [[ProxyHandler]], [[ProxyTarget]] »).
42     // 6. If IsCallable(target) is true, then P.[[Call]] as specified in 9.5.12.
43 
44     // 8. Set the [[ProxyTarget]] internal slot of P to target.
45     // 9. Set the [[ProxyHandler]] internal slot of P to handler.
46     return thread->GetEcmaVM()->GetFactory()->NewJSProxy(target, handler);
47 }
48 
49 // ES6 9.5.1 [[GetPrototypeOf]] ( )
GetPrototype(JSThread * thread,const JSHandle<JSProxy> & proxy)50 JSTaggedValue JSProxy::GetPrototype(JSThread *thread, const JSHandle<JSProxy> &proxy)
51 {
52     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
53     // 1. Let handler be the value of the [[ProxyHandler]] internal slot of O.
54     JSHandle<JSTaggedValue> handler(thread, proxy->GetHandler());
55     // 2. If handler is null, throw a TypeError exception.
56     if (handler->IsNull()) {
57         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetPrototype: handler is null", JSTaggedValue::Exception());
58     }
59     // 3. Assert: Type(handler) is Object.
60     ASSERT(handler->IsECMAObject());
61     // 4. Let target be the value of the [[ProxyTarget]] internal slot of O.
62     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
63     // 5. Let trap be GetMethod(handler, "getPrototypeOf").
64     JSHandle<JSTaggedValue> name(globalConst->GetHandledGetPrototypeOfString());
65     JSHandle<JSTaggedValue> trap = JSObject::GetMethod(thread, handler, name);
66     // 6. ReturnIfAbrupt(trap).
67     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
68 
69     // 7. If trap is undefined, then Return target.[[GetPrototypeOf]]().
70     if (trap->IsUndefined()) {
71         return JSTaggedValue::GetPrototype(thread, targetHandle);
72     }
73     // 8. Let handlerProto be Call(trap, handler, «target»).
74     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
75     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handler, undefined, 1);
76     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
77     info->SetCallArg(targetHandle.GetTaggedValue());
78     JSTaggedValue handlerProto = JSFunction::Call(info);
79 
80     // 9. ReturnIfAbrupt(handlerProto).
81     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
82     // 10. If Type(handlerProto) is neither Object nor Null, throw a TypeError exception.
83     if (!handlerProto.IsECMAObject() && !handlerProto.IsNull()) {
84         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetPrototype: Type(handlerProto) is neither Object nor Null",
85                                     JSTaggedValue::Exception());
86     }
87     // 11. Let extensibleTarget be IsExtensible(target).
88     // 12. ReturnIfAbrupt(extensibleTarget).
89     // 13. If extensibleTarget is true, return handlerProto.
90     if (targetHandle->IsExtensible(thread)) {
91         return handlerProto;
92     }
93     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
94 
95     // 14. Let targetProto be target.[[GetPrototypeOf]]().
96     JSTaggedValue targetProto = JSTaggedValue::GetPrototype(thread, targetHandle);
97     // 15. ReturnIfAbrupt(targetProto).
98     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
99     // 16. If SameValue(handlerProto, targetProto) is false, throw a TypeError exception.
100     if (!JSTaggedValue::SameValue(handlerProto, targetProto)) {
101         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetPrototype: SameValue(handlerProto, targetProto) is false",
102                                     JSTaggedValue::Exception());
103     }
104     // 17. Return handlerProto.
105     return handlerProto;
106 }
107 
108 // ES6 9.5.2 [[SetPrototypeOf]] (V)
SetPrototype(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & proto)109 bool JSProxy::SetPrototype(JSThread *thread, const JSHandle<JSProxy> &proxy, const JSHandle<JSTaggedValue> &proto)
110 {
111     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
112     // 1. Assert: Either Type(V) is Object or Type(V) is Null.
113     ASSERT(proto->IsECMAObject() || proto->IsNull());
114     // 2. Let handler be the value of the [[ProxyHandler]] internal slot of O.
115     JSTaggedValue handler = proxy->GetHandler();
116     // 3. If handler is null, throw a TypeError exception.
117     if (handler.IsNull()) {
118         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::SetPrototype: handler is null", false);
119     }
120     // 4. Assert: Type(handler) is Object.
121     ASSERT(handler.IsECMAObject());
122     // 5. Let target be the value of the [[ProxyTarget]] internal slot of O.
123     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
124     // 6. Let trap be GetMethod(handler, "setPrototypeOf").
125     JSHandle<JSTaggedValue> name = globalConst->GetHandledSetPrototypeOfString();
126     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
127     // 7. ReturnIfAbrupt(trap).
128     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
129 
130     // 7. If trap is undefined, then Return target.[[SetPrototypeOf]](V).
131     if (trap->IsUndefined()) {
132         return JSTaggedValue::SetPrototype(thread, targetHandle, proto);
133     }
134     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
135     const int32_t argsLength = 2;  // 2: target and proto
136     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
137     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
138     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
139     info->SetCallArg(targetHandle.GetTaggedValue(), proto.GetTaggedValue());
140     JSTaggedValue trapResult = JSFunction::Call(info);
141 
142     // 9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, V»)).
143     // If booleanTrapResult is false, return false
144     bool booleanTrapResult = trapResult.ToBoolean();
145     if (!booleanTrapResult) {
146         return false;
147     }
148     // 10. ReturnIfAbrupt(booleanTrapResult).
149     // 11. Let extensibleTarget be IsExtensible(target).
150     // 12. ReturnIfAbrupt(extensibleTarget).
151     // 13. If extensibleTarget is true, return booleanTrapResult
152     if (targetHandle->IsExtensible(thread)) {
153         return booleanTrapResult;
154     }
155     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
156 
157     // 14. Let targetProto be target.[[GetPrototypeOf]]().
158     JSTaggedValue targetProto = JSTaggedValue::GetPrototype(thread, targetHandle);
159     // 15. ReturnIfAbrupt(targetProto).
160     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
161 
162     // 16. If booleanTrapResult is true and SameValue(V, targetProto) is false, throw a TypeError exception.
163     if (booleanTrapResult && !JSTaggedValue::SameValue(proto.GetTaggedValue(), targetProto)) {
164         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::SetPrototype: TypeError of targetProto and Result", false);
165     }
166     // 17. Return handlerProto.
167     return booleanTrapResult;
168 }
169 
170 // ES6 9.5.3 [[IsExtensible]] ( )
IsExtensible(JSThread * thread,const JSHandle<JSProxy> & proxy)171 bool JSProxy::IsExtensible(JSThread *thread, const JSHandle<JSProxy> &proxy)
172 {
173     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
174     // 1. Let handler be the value of the [[ProxyHandler]] internal slot of O.
175     JSTaggedValue handler = proxy->GetHandler();
176     // 2. If handler is null, throw a TypeError exception.
177     if (handler.IsNull()) {
178         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::IsExtensible: handler is null", false);
179     }
180     // 3. Assert: Type(handler) is Object.
181     ASSERT(handler.IsECMAObject());
182     // 4. Let target be the value of the [[ProxyTarget]] internal slot of O.
183     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
184     // 5. Let trap be GetMethod(handler, "isExtensible").
185     JSHandle<JSTaggedValue> name = globalConst->GetHandledIsExtensibleString();
186     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
187     // 6. ReturnIfAbrupt(trap).
188     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
189 
190     // 7. If trap is undefined, then Return target.[[IsExtensible]]().
191     if (trap->IsUndefined()) {
192         return targetHandle->IsExtensible(thread);
193     }
194     // 8. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target»)).
195     JSHandle<JSTaggedValue> newTgt(thread, JSTaggedValue::Undefined());
196     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
197     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
198     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, 1);
199     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
200     info->SetCallArg(targetHandle.GetTaggedValue());
201     JSTaggedValue trapResult = JSFunction::Call(info);
202 
203     bool booleanTrapResult = trapResult.ToBoolean();
204     // 9. ReturnIfAbrupt(booleanTrapResult).
205     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
206 
207     // 10. Let targetResult be target.[[IsExtensible]]().
208     // 11. ReturnIfAbrupt(targetResult).
209     // 12. If SameValue(booleanTrapResult, targetResult) is false, throw a TypeError exception.
210     // 13. Return booleanTrapResult.
211     if (targetHandle->IsExtensible(thread) != booleanTrapResult) {
212         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::IsExtensible: TypeError of targetResult", false);
213     }
214 
215     return booleanTrapResult;
216 }
217 
218 // ES6 9.5.4 [[PreventExtensions]] ( )
PreventExtensions(JSThread * thread,const JSHandle<JSProxy> & proxy)219 bool JSProxy::PreventExtensions(JSThread *thread, const JSHandle<JSProxy> &proxy)
220 {
221     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
222     // 1. Let handler be the value of the [[ProxyHandler]] internal slot of O.
223     // 2. If handler is null, throw a TypeError exception.
224     // 3. Assert: Type(handler) is Object.
225     // 4. Let target be the value of the [[ProxyTarget]] internal slot of O.
226     // 5. Let trap be GetMethod(handler, "preventExtensions").
227     // 6. ReturnIfAbrupt(trap).
228     // 7. If trap is undefined, then
229     // a. Return target.[[PreventExtensions]]().
230     // 8. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target»)).
231     // 9. ReturnIfAbrupt(booleanTrapResult).
232     JSTaggedValue handler = proxy->GetHandler();
233     if (handler.IsNull()) {
234         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::PreventExtensions: handler is null", false);
235     }
236     ASSERT(handler.IsECMAObject());
237     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
238     JSHandle<JSTaggedValue> name = globalConst->GetHandledPreventExtensionsString();
239     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
240     // 6. ReturnIfAbrupt(trap).
241     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
242 
243     if (trap->IsUndefined()) {
244         return JSTaggedValue::PreventExtensions(thread, targetHandle);
245     }
246     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
247     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
248     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, 1);
249     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
250     info->SetCallArg(targetHandle.GetTaggedValue());
251     JSTaggedValue trapResult = JSFunction::Call(info);
252 
253     bool booleanTrapResult = trapResult.ToBoolean();
254     // 9. ReturnIfAbrupt(booleanTrapResult).
255     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
256     // 10. If booleanTrapResult is true, then
257     // a. Let targetIsExtensible be target.[[IsExtensible]]().
258     // b. ReturnIfAbrupt(targetIsExtensible).
259     // c. If targetIsExtensible is true, throw a TypeError exception.
260     if (booleanTrapResult && targetHandle->IsExtensible(thread)) {
261         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::PreventExtensions: targetIsExtensible is true", false);
262     }
263     // 11. Return booleanTrapResult.
264     return booleanTrapResult;
265 }
266 
267 // ES6 9.5.5 [[GetOwnProperty]] (P)
GetOwnProperty(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & key,PropertyDescriptor & desc)268 bool JSProxy::GetOwnProperty(JSThread *thread, const JSHandle<JSProxy> &proxy, const JSHandle<JSTaggedValue> &key,
269                              PropertyDescriptor &desc)
270 {
271     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
272     // 1. Assert: IsPropertyKey(P) is true.
273     ASSERT(JSTaggedValue::IsPropertyKey(key));
274     // 2. Let handler be the value of the [[ProxyHandler]] internal slot of O.
275     // 3. If handler is null, throw a TypeError exception.
276     // 4. Assert: Type(handler) is Object.
277     // 5. Let target be the value of the [[ProxyTarget]] internal slot of O.
278     // 6. Let trap be GetMethod(handler, "getOwnPropertyDescriptor").
279     // 7. ReturnIfAbrupt(trap).
280     // 8. If trap is undefined, then
281     // a. Return target.[[GetOwnProperty]](P).
282     // 9. Let trapResultObj be Call(trap, handler, «target, P»).
283     // 10. ReturnIfAbrupt(trapResultObj).
284     // 11. If Type(trapResultObj) is neither Object nor Undefined, throw a TypeError exception
285     JSTaggedValue handler = proxy->GetHandler();
286     if (handler.IsNull()) {
287         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: handler is null", false);
288     }
289     ASSERT(handler.IsECMAObject());
290     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
291     JSHandle<JSTaggedValue> name = globalConst->GetHandledGetOwnPropertyDescriptorString();
292     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
293     // 7. ReturnIfAbrupt(trap).
294     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
295 
296     if (trap->IsUndefined()) {
297         return JSTaggedValue::GetOwnProperty(thread, targetHandle, key, desc);
298     }
299     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
300     const int32_t argsLength = 2;  // 2: target and key
301     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
302     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
303     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
304     info->SetCallArg(targetHandle.GetTaggedValue(), key.GetTaggedValue());
305     JSTaggedValue trapResultObj = JSFunction::Call(info);
306 
307     JSHandle<JSTaggedValue> resultHandle(thread, trapResultObj);
308 
309     // 11. If Type(trapResultObj) is neither Object nor Undefined, throw a TypeError exception.
310     if (!trapResultObj.IsECMAObject() && !trapResultObj.IsUndefined()) {
311         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: TypeError of trapResultObj", false);
312     }
313     // 12. Let targetDesc be target.[[GetOwnProperty]](P).
314     PropertyDescriptor targetDesc(thread);
315     bool found = JSTaggedValue::GetOwnProperty(thread, targetHandle, key, targetDesc);
316     // 13. ReturnIfAbrupt(targetDesc).
317     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
318 
319     // 14. If trapResultObj is undefined, then
320     if (resultHandle->IsUndefined()) {
321         // a. If targetDesc is undefined, return undefined.
322         if (!found) {
323             return false;
324         }
325         // b. If targetDesc.[[Configurable]] is false, throw a TypeError exception.
326         if (!targetDesc.IsConfigurable()) {
327             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: targetDesc.[[Configurable]] is false", false);
328         }
329         // c. Let extensibleTarget be IsExtensible(target).
330         // d. ReturnIfAbrupt(extensibleTarget).
331         // e. Assert: Type(extensibleTarget) is Boolean.
332         // f. If extensibleTarget is false, throw a TypeError exception.
333         if (!targetHandle->IsExtensible(thread)) {
334             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: extensibleTarget is false", false);
335         }
336         // g. Return undefined.
337         return false;
338     }
339     // 15. Let extensibleTarget be IsExtensible(target).
340     // 16. ReturnIfAbrupt(extensibleTarget).
341     // 17. Let resultDesc be ToPropertyDescriptor(trapResultObj).
342     PropertyDescriptor &resultDesc = desc;
343     JSObject::ToPropertyDescriptor(thread, resultHandle, resultDesc);
344     // 18. ReturnIfAbrupt(resultDesc)
345     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
346     // 19. Call CompletePropertyDescriptor(resultDesc).
347     PropertyDescriptor::CompletePropertyDescriptor(thread, resultDesc);
348     // 20. Let valid be IsCompatiblePropertyDescriptor (extensibleTarget, resultDesc, targetDesc).
349     bool valid = JSObject::IsCompatiblePropertyDescriptor(targetHandle->IsExtensible(thread), resultDesc, targetDesc);
350     if (!valid) {
351         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: TypeError of valid", false);
352     }
353     // 22. If resultDesc.[[Configurable]] is false, then
354     if (!resultDesc.IsConfigurable()) {
355         // a. If targetDesc is undefined or targetDesc.[[Configurable]] is true, then
356         if (!found || targetDesc.IsConfigurable()) {
357             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: TypeError of targetDesc configurable", false);
358         }
359         // b. If resultDesc has a [[Writable]] field and resultDesc.[[Writable]] is false, then
360         //    If targetDesc.[[Writable]] is true, throw a TypeError exception.
361         if (resultDesc.HasWritable() && !resultDesc.IsWritable() && targetDesc.IsWritable()) {
362             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetOwnProperty: TypeError of targetDesc writable", false);
363         }
364         // b. If resultDesc has a [[Writable]] field and resultDesc.[[Writable]] is false, then
365         //    If targetDesc.[[Writable]] is true, throw a TypeError exception.
366         if (resultDesc.HasWritable() && !resultDesc.IsWritable() && targetDesc.IsWritable()) {
367             THROW_TYPE_ERROR_AND_RETURN(thread, "", false);
368         }
369     }
370     // 23. Return resultDesc.
371     return true;
372 }
373 
374 // ES6 9.5.6 [[DefineOwnProperty]] (P, Desc)
DefineOwnProperty(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & key,const PropertyDescriptor & desc)375 bool JSProxy::DefineOwnProperty(JSThread *thread, const JSHandle<JSProxy> &proxy, const JSHandle<JSTaggedValue> &key,
376                                 const PropertyDescriptor &desc)
377 {
378     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
379     // step 1 ~ 10 are almost same as GetOwnProperty
380     ASSERT(JSTaggedValue::IsPropertyKey(key));
381     JSTaggedValue handler = proxy->GetHandler();
382     if (handler.IsNull()) {
383         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DefineOwnProperty: handler is Null", false);
384     }
385     ASSERT(handler.IsECMAObject());
386     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
387     JSHandle<JSTaggedValue> name = globalConst->GetHandledDefinePropertyString();
388     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
389     // 7. ReturnIfAbrupt(trap).
390     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
391     if (trap->IsUndefined()) {
392         return JSTaggedValue::DefineOwnProperty(thread, targetHandle, key, desc);
393     }
394 
395     // 9. Let descObj be FromPropertyDescriptor(Desc).
396     JSHandle<JSTaggedValue> descObj = JSObject::FromPropertyDescriptor(thread, desc);
397     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
398     const int32_t argsLength = 3;  // 3: target, key and desc
399     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
400     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
401     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
402     info->SetCallArg(targetHandle.GetTaggedValue(), key.GetTaggedValue(), descObj.GetTaggedValue());
403     JSTaggedValue trapResult = JSFunction::Call(info);
404 
405     bool booleanTrapResult = trapResult.ToBoolean();
406     // 11. ReturnIfAbrupt(booleanTrapResult).
407     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
408     if (!booleanTrapResult) {
409         return false;
410     }
411     // 13. Let targetDesc be target.[[GetOwnProperty]](P).
412     PropertyDescriptor targetDesc(thread);
413     bool found = JSTaggedValue::GetOwnProperty(thread, targetHandle, key, targetDesc);
414     // 14. ReturnIfAbrupt(targetDesc).
415     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
416 
417     // 15. Let extensibleTarget be IsExtensible(target).
418     // 16. ReturnIfAbrupt(extensibleTarget).
419     // 17. If Desc has a [[Configurable]] field and if Desc.[[Configurable]] is false, then Let settingConfigFalse be
420     // true.
421     // 18. Else let settingConfigFalse be false.
422     bool settingConfigFalse = false;
423     if (desc.HasConfigurable() && !desc.IsConfigurable()) {
424         settingConfigFalse = true;
425     }
426     // 19. If targetDesc is undefined, then
427     if (!found) {
428         // a. If extensibleTarget is false, throw a TypeError exception.
429         if (!targetHandle->IsExtensible(thread)) {
430             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DefineOwnProperty: extensibleTarget is false", false);
431         }
432         // b. If settingConfigFalse is true, throw a TypeError exception.
433         if (settingConfigFalse) {
434             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DefineOwnProperty: settingConfigFalse is true", false);
435         }
436     } else {
437         // a. If IsCompatiblePropertyDescriptor(extensibleTarget, Desc , targetDesc) is false, throw a TypeError
438         // exception.
439         if (!JSObject::IsCompatiblePropertyDescriptor(targetHandle->IsExtensible(thread), desc, targetDesc)) {
440             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DefineOwnProperty: CompatiblePropertyDescriptor err", false);
441         }
442         // b. If settingConfigFalse is true and targetDesc.[[Configurable]] is true, throw a TypeError exception.
443         if (settingConfigFalse && targetDesc.IsConfigurable()) {
444             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DefineOwnProperty: TypeError of settingConfigFalse", false);
445         }
446         // c. If IsDataDescriptor(targetDesc) is true, targetDesc.[[Configurable]] is false, and targetDesc.[[Writable]]
447         // is true, then If Desc has a [[Writable]] field and Desc.[[Writable]] is false, throw a TypeError exception.
448         if (targetDesc.IsDataDescriptor() && !targetDesc.IsConfigurable() && targetDesc.IsWritable() &&
449             desc.HasWritable() && !desc.IsWritable()) {
450             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DefineOwnProperty: TypeError of DataDescriptor", false);
451         }
452         // c. If IsDataDescriptor(targetDesc) is true, targetDesc.[[Configurable]] is false, and targetDesc.[[Writable]]
453         // is true, then If Desc has a [[Writable]] field and Desc.[[Writable]] is false, throw a TypeError exception.
454         if (targetDesc.IsDataDescriptor() && !targetDesc.IsConfigurable() && targetDesc.IsWritable() &&
455             desc.HasWritable() && !desc.IsWritable()) {
456             THROW_TYPE_ERROR_AND_RETURN(thread, "", false);
457         }
458     }
459     // 21. Return true.
460     return true;
461 }
462 
463 // ES6 9.5.7 [[HasProperty]] (P)
HasProperty(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & key)464 bool JSProxy::HasProperty(JSThread *thread, const JSHandle<JSProxy> &proxy, const JSHandle<JSTaggedValue> &key)
465 {
466     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
467     // step 1 ~ 10 are almost same as GetOwnProperty
468     ASSERT(JSTaggedValue::IsPropertyKey(key));
469     JSTaggedValue handler = proxy->GetHandler();
470     if (handler.IsNull()) {
471         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::HasProperty: handler is Null", false);
472     }
473     ASSERT(handler.IsECMAObject());
474     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
475     JSHandle<JSTaggedValue> name = globalConst->GetHandledHasString();
476     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
477     // 7. ReturnIfAbrupt(trap).
478     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
479     if (trap->IsUndefined()) {
480         return JSTaggedValue::HasProperty(thread, targetHandle, key);
481     }
482 
483     // 9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P»)).
484     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
485 
486     const int32_t argsLength = 2;  // 2: target and key
487     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
488     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
489     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
490     info->SetCallArg(targetHandle.GetTaggedValue(), key.GetTaggedValue());
491     JSTaggedValue trapResult = JSFunction::Call(info);
492 
493     bool booleanTrapResult = trapResult.ToBoolean();
494     // 10. ReturnIfAbrupt(booleanTrapResult).
495     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
496 
497     // 11. If booleanTrapResult is false, then
498     if (!booleanTrapResult) {
499         // a. Let targetDesc be target.[[GetOwnProperty]](P).
500         PropertyDescriptor targetDesc(thread);
501         bool found = JSTaggedValue::GetOwnProperty(thread, targetHandle, key, targetDesc);
502         // b. ReturnIfAbrupt(targetDesc).
503         RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
504         // c. If targetDesc is not undefined, then
505         if (found) {
506             // i. If targetDesc.[[Configurable]] is false, throw a TypeError exception.
507             if (!targetDesc.IsConfigurable()) {
508                 THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::HasProperty: TypeError of targetDesc", false);
509             }
510             // ii. Let extensibleTarget be IsExtensible(target).
511             // iii. ReturnIfAbrupt(extensibleTarget).
512             // iv. If extensibleTarget is false, throw a TypeError exception.
513             if (!targetHandle->IsExtensible(thread)) {
514                 THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::HasProperty: extensibleTarget is false", false);
515             }
516         }
517     }
518     return booleanTrapResult;
519 }
520 
521 // ES6 9.5.8 [[Get]] (P, Receiver)
GetProperty(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & key,const JSHandle<JSTaggedValue> & receiver)522 OperationResult JSProxy::GetProperty(JSThread *thread, const JSHandle<JSProxy> &proxy,
523                                      const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &receiver)
524 {
525     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
526     // step 1 ~ 10 are almost same as GetOwnProperty
527     ASSERT(JSTaggedValue::IsPropertyKey(key));
528     JSTaggedValue handler = proxy->GetHandler();
529     JSHandle<JSTaggedValue> exceptionHandle(thread, JSTaggedValue::Exception());
530     if (handler.IsNull()) {
531         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::GetProperty: handler is Null",
532                                     OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
533     }
534     ASSERT(handler.IsECMAObject());
535     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
536     JSHandle<JSTaggedValue> name = globalConst->GetHandledGetString();
537     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
538     // 7. ReturnIfAbrupt(trap).
539     RETURN_VALUE_IF_ABRUPT_COMPLETION(
540         thread, OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
541 
542     if (trap->IsUndefined()) {
543         return JSTaggedValue::GetProperty(thread, targetHandle, key, receiver);
544     }
545     // 9. Let trapResult be Call(trap, handler, «target, P, Receiver»).
546     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
547     const int32_t argsLength = 3;  // 3: «target, P, Receiver»
548     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
549     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
550     RETURN_VALUE_IF_ABRUPT_COMPLETION(
551         thread, OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
552     info->SetCallArg(targetHandle.GetTaggedValue(), key.GetTaggedValue(), receiver.GetTaggedValue());
553     JSTaggedValue trapResult = JSFunction::Call(info);
554     JSHandle<JSTaggedValue> resultHandle(thread, trapResult);
555 
556     // 10. ReturnIfAbrupt(trapResult).
557     RETURN_VALUE_IF_ABRUPT_COMPLETION(
558         thread, OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
559 
560     // 11. Let targetDesc be target.[[GetOwnProperty]](P).
561     PropertyDescriptor targetDesc(thread);
562     bool found = JSTaggedValue::GetOwnProperty(thread, targetHandle, key, targetDesc);
563     // 12. ReturnIfAbrupt(targetDesc).
564     RETURN_VALUE_IF_ABRUPT_COMPLETION(
565         thread, OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
566 
567     // 13. If targetDesc is not undefined, then
568     if (found) {
569         // a. If IsDataDescriptor(targetDesc) and targetDesc.[[Configurable]] is false and targetDesc.[[Writable]] is
570         // false, then
571         if (targetDesc.IsDataDescriptor() && !targetDesc.IsConfigurable() && !targetDesc.IsWritable()) {
572             // i. If SameValue(trapResult, targetDesc.[[Value]]) is false, throw a TypeError exception.
573             if (!JSTaggedValue::SameValue(resultHandle.GetTaggedValue(), targetDesc.GetValue().GetTaggedValue())) {
574                 THROW_TYPE_ERROR_AND_RETURN(
575                     thread, "JSProxy::GetProperty: TypeError of trapResult",
576                     OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
577             }
578         }
579         // b. If IsAccessorDescriptor(targetDesc) and targetDesc.[[Configurable]] is false and targetDesc.[[Get]] is
580         // undefined, then
581         if (targetDesc.IsAccessorDescriptor() && !targetDesc.IsConfigurable() &&
582             targetDesc.GetGetter()->IsUndefined()) {
583             // i. If trapResult is not undefined, throw a TypeError exception.
584             if (!resultHandle.GetTaggedValue().IsUndefined()) {
585                 THROW_TYPE_ERROR_AND_RETURN(
586                     thread, "JSProxy::GetProperty: trapResult is not undefined",
587                     OperationResult(thread, exceptionHandle.GetTaggedValue(), PropertyMetaData(false)));
588             }
589         }
590     }
591     // 14. Return trapResult.
592     return OperationResult(thread, resultHandle.GetTaggedValue(), PropertyMetaData(true));
593 }
594 
595 // ES6 9.5.9 [[Set]] ( P, V, Receiver)
SetProperty(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & key,const JSHandle<JSTaggedValue> & value,const JSHandle<JSTaggedValue> & receiver,bool mayThrow)596 bool JSProxy::SetProperty(JSThread *thread, const JSHandle<JSProxy> &proxy, const JSHandle<JSTaggedValue> &key,
597                           const JSHandle<JSTaggedValue> &value, const JSHandle<JSTaggedValue> &receiver, bool mayThrow)
598 {
599     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
600     // step 1 ~ 10 are almost same as GetOwnProperty
601     ASSERT(JSTaggedValue::IsPropertyKey(key));
602     JSTaggedValue handler = proxy->GetHandler();
603     if (handler.IsNull()) {
604         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::SetProperty: handler is Null", false);
605     }
606     ASSERT(handler.IsECMAObject());
607     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
608     JSHandle<JSTaggedValue> name = globalConst->GetHandledSetString();
609     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
610     // 7. ReturnIfAbrupt(trap).
611     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
612     if (trap->IsUndefined()) {
613         return JSTaggedValue::SetProperty(thread, targetHandle, key, value, receiver, mayThrow);
614     }
615 
616     // 9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P, V, Receiver»))
617     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
618     const int32_t argsLength = 4;  // 4: «target, P, V, Receiver»
619     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
620     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
621     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
622     info->SetCallArg(
623         targetHandle.GetTaggedValue(), key.GetTaggedValue(), value.GetTaggedValue(), receiver.GetTaggedValue());
624     JSTaggedValue trapResult = JSFunction::Call(info);
625 
626     bool booleanTrapResult = trapResult.ToBoolean();
627     // 11. ReturnIfAbrupt(booleanTrapResult).
628     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
629     if (!booleanTrapResult) {
630         return false;
631     }
632     // 13. Let targetDesc be target.[[GetOwnProperty]](P).
633     PropertyDescriptor targetDesc(thread);
634     bool found = JSTaggedValue::GetOwnProperty(thread, targetHandle, key, targetDesc);
635     // 14. If targetDesc is not undefined, then
636     if (found) {
637         // a. If IsDataDescriptor(targetDesc) and targetDesc.[[Configurable]] is false and targetDesc.[[Writable]] is
638         // false, then
639         if (targetDesc.IsDataDescriptor() && !targetDesc.IsConfigurable() && !targetDesc.IsWritable()) {
640             // i. If SameValue(trapResult, targetDesc.[[Value]]) is false, throw a TypeError exception.
641             if (!JSTaggedValue::SameValue(value, targetDesc.GetValue())) {
642                 THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::SetProperty: TypeError of trapResult", false);
643             }
644         }
645         // b. If IsAccessorDescriptor(targetDesc) and targetDesc.[[Configurable]] is false, then
646         // i. If targetDesc.[[Set]] is undefined, throw a TypeError exception.
647         if (targetDesc.IsAccessorDescriptor() && !targetDesc.IsConfigurable() &&
648             targetDesc.GetSetter()->IsUndefined()) {
649             THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::SetProperty: TypeError of AccessorDescriptor", false);
650         }
651     }
652     return true;
653 }
654 
655 // ES6 9.5.10 [[Delete]] (P)
DeleteProperty(JSThread * thread,const JSHandle<JSProxy> & proxy,const JSHandle<JSTaggedValue> & key)656 bool JSProxy::DeleteProperty(JSThread *thread, const JSHandle<JSProxy> &proxy, const JSHandle<JSTaggedValue> &key)
657 {
658     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
659     // step 1 ~ 13 are almost same as GetOwnProperty
660     ASSERT(JSTaggedValue::IsPropertyKey(key));
661     JSTaggedValue handler = proxy->GetHandler();
662     if (handler.IsNull()) {
663         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DeleteProperty: handler is Null", false);
664     }
665     ASSERT(handler.IsECMAObject());
666     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
667     JSHandle<JSTaggedValue> name = globalConst->GetHandledDeletePropertyString();
668     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, JSHandle<JSTaggedValue>(thread, handler), name));
669     // 7. ReturnIfAbrupt(trap).
670     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
671     if (trap->IsUndefined()) {
672         return JSTaggedValue::DeleteProperty(thread, targetHandle, key);
673     }
674 
675     // 9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P»)).
676     JSHandle<JSTaggedValue> newTgt(thread, JSTaggedValue::Undefined());
677     JSHandle<JSTaggedValue> handlerTag(thread, proxy->GetHandler());
678     const int32_t argsLength = 2;  // 2: target and key
679     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
680     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerTag, undefined, argsLength);
681     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
682     info->SetCallArg(targetHandle.GetTaggedValue(), key.GetTaggedValue());
683     JSTaggedValue trapResult = JSFunction::Call(info);
684 
685     bool booleanTrapResult = trapResult.ToBoolean();
686     // 11. ReturnIfAbrupt(booleanTrapResult).
687     RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, false);
688     if (!booleanTrapResult) {
689         return false;
690     }
691     // 13. Let targetDesc be target.[[GetOwnProperty]](P).
692     PropertyDescriptor targetDesc(thread);
693     bool found = JSTaggedValue::GetOwnProperty(thread, targetHandle, key, targetDesc);
694     // 14. If targetDesc is undefined, return true.
695     if (!found) {
696         return true;
697     }
698     // 15. If targetDesc.[[Configurable]] is false, throw a TypeError exception.
699     if (!targetDesc.IsConfigurable()) {
700         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DeleteProperty: targetDesc is not Configurable", false);
701     }
702     if (!targetHandle->IsExtensible(thread)) {
703         THROW_TYPE_ERROR_AND_RETURN(thread, "JSProxy::DeleteProperty: targetHandle is not Extensible", false);
704     }
705     if (!targetHandle->IsExtensible(thread)) {
706         THROW_TYPE_ERROR_AND_RETURN(thread, "", false);
707     }
708     // 16. Return true.
709     return true;
710 }
711 
712 // ES6 9.5.12 [[OwnPropertyKeys]] ()
OwnPropertyKeys(JSThread * thread,const JSHandle<JSProxy> & proxy)713 JSHandle<TaggedArray> JSProxy::OwnPropertyKeys(JSThread *thread, const JSHandle<JSProxy> &proxy)
714 {
715     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
716     // step 1 ~ 4 get ProxyHandler and ProxyTarget
717     JSTaggedValue handler = proxy->GetHandler();
718     if (handler.IsNull()) {
719         THROW_TYPE_ERROR_AND_RETURN(thread, "OwnPropertyKeys: handler is null",
720                                     JSHandle<TaggedArray>(thread, JSTaggedValue::Exception()));
721     }
722 
723     ASSERT(handler.IsECMAObject());
724     JSHandle<JSTaggedValue> targetHandle(thread, proxy->GetTarget());
725 
726     // 5.Let trap be GetMethod(handler, "ownKeys").
727     JSHandle<JSTaggedValue> key = globalConst->GetHandledOwnKeysString();
728     JSHandle<JSTaggedValue> handlerHandle(thread, handler);
729     JSHandle<JSTaggedValue> trap(JSObject::GetMethod(thread, handlerHandle, key));
730 
731     // 6.ReturnIfAbrupt(trap).
732     RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
733 
734     // 7.If trap is undefined, then
735     //    a.Return target.[[OwnPropertyKeys]]().
736     if (trap->IsUndefined()) {
737         return JSTaggedValue::GetOwnPropertyKeys(thread, targetHandle);
738     }
739 
740     // 8.Let trapResultArray be Call(trap, handler, «target»).
741     JSHandle<JSFunction> tagFunc(targetHandle);
742     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
743     EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, trap, handlerHandle, undefined, 1);
744     RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
745     info->SetCallArg(targetHandle.GetTaggedValue());
746     JSTaggedValue res = JSFunction::Call(info);
747     RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
748     JSHandle<JSTaggedValue> trap_res_arr(thread, res);
749 
750     // 9.Let trapResult be CreateListFromArrayLike(trapResultArray, «String, Symbol»).
751     // 10.ReturnIfAbrupt(trapResult)
752     // If trapResult contains any duplicate entries, throw a TypeError exception.
753     JSHandle<TaggedArray> trapRes(
754         JSObject::CreateListFromArrayLike<ElementTypes::STRING_AND_SYMBOL>(thread, trap_res_arr));
755     RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
756 
757     if (trapRes->HasDuplicateEntry()) {
758         THROW_TYPE_ERROR_AND_RETURN(thread, "OwnPropertyKeys: contains duplicate entries",
759                                     JSHandle<TaggedArray>(thread, JSTaggedValue::Exception()));
760     }
761 
762     // 11.Let extensibleTarget be IsExtensible(target).
763     bool extensibleTarget = targetHandle->IsExtensible(thread);
764 
765     // 12.ReturnIfAbrupt(extensibleTarget).
766     RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
767 
768     // 13.Let targetKeys be target.[[OwnPropertyKeys]]().
769     JSHandle<TaggedArray> targetKeys = JSTaggedValue::GetOwnPropertyKeys(thread, targetHandle);
770 
771     // 14.ReturnIfAbrupt(targetKeys).
772     RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
773 
774     // 15.Assert: targetKeys is a List containing only String and Symbol values.
775     // 16.Let targetConfigurableKeys be an empty List.
776     // 17.Let targetNonconfigurableKeys be an empty List.
777     // 18.Repeat, for each element key of targetKeys,
778     //     a.Let desc be target.[[GetOwnProperty]](key).
779     //     b.ReturnIfAbrupt(desc).
780     //     c.If desc is not undefined and desc.[[Configurable]] is false, then
781     //        i.Append key as an element of targetNonconfigurableKeys.
782     //     d.Else,
783     //        i.Append key as an element of targetConfigurableKeys.
784     uint32_t length = targetKeys->GetLength();
785     JSHandle<TaggedArray> tgtCfigKeys = thread->GetEcmaVM()->GetFactory()->NewTaggedArray(length);
786     JSHandle<TaggedArray> tgtNoCfigKeys = thread->GetEcmaVM()->GetFactory()->NewTaggedArray(length);
787 
788     uint32_t cfigLength = 0;
789     uint32_t noCfigLength = 0;
790     for (uint32_t i = 0; i < length; i++) {
791         JSHandle<JSTaggedValue> targetKey(thread, targetKeys->Get(i));
792         ASSERT(targetKey->IsStringOrSymbol());
793 
794         PropertyDescriptor desc(thread);
795         JSTaggedValue::GetOwnProperty(thread, targetHandle, targetKey, desc);
796         RETURN_HANDLE_IF_ABRUPT_COMPLETION(TaggedArray, thread);
797 
798         if (!desc.IsEmpty() && !desc.IsConfigurable()) {
799             tgtNoCfigKeys->Set(thread, noCfigLength, targetKey);
800             noCfigLength++;
801         } else {
802             tgtCfigKeys->Set(thread, cfigLength, targetKey);
803             cfigLength++;
804         }
805     }
806 
807     // 19.If extensibleTarget is true and targetNonconfigurableKeys is empty, then
808     //     a.Return trapResult.
809     if (extensibleTarget && (cfigLength == 0)) {
810         return trapRes;
811     }
812 
813     // 20.Let uncheckedResultKeys be a new List which is a copy of trapResult.
814     JSHandle<TaggedArray> uncheckFesKeys =
815         thread->GetEcmaVM()->GetFactory()->CopyArray(trapRes, trapRes->GetLength(), trapRes->GetLength());
816     uint32_t uncheckLength = uncheckFesKeys->GetLength();
817 
818     // 21.Repeat, for each key that is an element of targetNonconfigurableKeys,
819     //     a.If key is not an element of uncheckedResultKeys, throw a TypeError exception.
820     //     b.Remove key from uncheckedResultKeys
821     for (uint32_t i = 0; i < noCfigLength; i++) {
822         uint32_t idx = uncheckFesKeys->GetIdx(tgtNoCfigKeys->Get(i));
823         if (idx == TaggedArray::MAX_ARRAY_INDEX) {
824             THROW_TYPE_ERROR_AND_RETURN(thread, "OwnPropertyKeys: key is not an element of uncheckedResultKeys",
825                                         JSHandle<TaggedArray>(thread, JSTaggedValue::Exception()));
826         }
827         uncheckFesKeys->Set(thread, idx, JSTaggedValue::Hole());
828         uncheckLength--;
829     }
830 
831     // 22.If extensibleTarget is true, return trapResult.
832     if (extensibleTarget) {
833         return trapRes;
834     }
835 
836     // 23.Repeat, for each key that is an element of targetConfigurableKeys,
837     //     a.If key is not an element of uncheckedResultKeys, throw a TypeError exception.
838     //     b.Remove key from uncheckedResultKeys
839     for (uint32_t i = 0; i < cfigLength; i++) {
840         uint32_t idx = uncheckFesKeys->GetIdx(tgtCfigKeys->Get(i));
841         if (idx == TaggedArray::MAX_ARRAY_INDEX) {
842             THROW_TYPE_ERROR_AND_RETURN(thread, "OwnPropertyKeys: key is not an element of uncheckedResultKeys",
843                                         JSHandle<TaggedArray>(thread, JSTaggedValue::Exception()));
844         }
845         uncheckFesKeys->Set(thread, idx, JSTaggedValue::Hole());
846         uncheckLength--;
847     }
848 
849     // 24.If uncheckedResultKeys is not empty, throw a TypeError exception.
850     if (uncheckLength != 0) {
851         THROW_TYPE_ERROR_AND_RETURN(thread, "OwnPropertyKeys: uncheckedResultKeys is not empty",
852                                     JSHandle<TaggedArray>(thread, JSTaggedValue::Exception()));
853     }
854 
855     // 25.Return trapResult.
856     return trapRes;
857 }
858 
859 // ES6 9.5.13 [[Call]] (thisArgument, argumentsList)
CallInternal(EcmaRuntimeCallInfo * info)860 JSTaggedValue JSProxy::CallInternal(EcmaRuntimeCallInfo *info)
861 {
862     if (info == nullptr) {
863         return JSTaggedValue::Exception();
864     }
865 
866     JSThread *thread = info->GetThread();
867     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
868     JSHandle<JSProxy> proxy(info->GetFunction());
869     // step 1 ~ 4 get ProxyHandler and ProxyTarget
870     JSHandle<JSTaggedValue> handler(thread, proxy->GetHandler());
871     if (handler->IsNull()) {
872         THROW_TYPE_ERROR_AND_RETURN(thread, "Call: handler is null", JSTaggedValue::Exception());
873     }
874     ASSERT(handler->IsECMAObject());
875     JSHandle<JSTaggedValue> target(thread, proxy->GetTarget());
876 
877     // 5.Let trap be GetMethod(handler, "apply").
878     JSHandle<JSTaggedValue> key(globalConst->GetHandledApplyString());
879     JSHandle<JSTaggedValue> method = JSObject::GetMethod(thread, handler, key);
880 
881     // 6.ReturnIfAbrupt(trap).
882     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
883     uint32_t argc = info->GetArgsNumber();
884     JSHandle<JSTaggedValue> thisArg = info->GetThis();
885     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
886     // 7.If trap is undefined, then
887     //   a.Return Call(target, thisArgument, argumentsList).
888     if (method->IsUndefined()) {
889         EcmaRuntimeCallInfo *runtimeInfo =
890             EcmaInterpreter::NewRuntimeCallInfo(thread, target, thisArg, undefined, argc);
891         RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
892         runtimeInfo->SetCallArg(argc, 0, info, 0);
893         return JSFunction::Call(runtimeInfo);
894     }
895     // 8.Let argArray be CreateArrayFromList(argumentsList).
896     ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
897     JSHandle<TaggedArray> taggedArray = factory->NewTaggedArray(argc);
898     for (uint32_t index = 0; index < argc; ++index) {
899         taggedArray->Set(thread, index, info->GetCallArg(index));
900     }
901     JSHandle<JSArray> arrHandle = JSArray::CreateArrayFromList(thread, taggedArray);
902 
903     // 9.Return Call(trap, handler, «target, thisArgument, argArray»).
904     const uint32_t argsLength = 3;  // 3: «target, thisArgument, argArray»
905     EcmaRuntimeCallInfo *runtimeInfo =
906         EcmaInterpreter::NewRuntimeCallInfo(thread, method, handler, undefined, argsLength);
907     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
908     runtimeInfo->SetCallArg(target.GetTaggedValue(), thisArg.GetTaggedValue(), arrHandle.GetTaggedValue());
909     return JSFunction::Call(runtimeInfo);
910 }
911 
912 // ES6 9.5.14 [[Construct]] ( argumentsList, newTarget)
ConstructInternal(EcmaRuntimeCallInfo * info)913 JSTaggedValue JSProxy::ConstructInternal(EcmaRuntimeCallInfo *info)
914 {
915     if (info == nullptr) {
916         return JSTaggedValue::Exception();
917     }
918 
919     JSThread *thread = info->GetThread();
920     const GlobalEnvConstants *globalConst = thread->GlobalConstants();
921     // step 1 ~ 4 get ProxyHandler and ProxyTarget
922     JSHandle<JSProxy> proxy(info->GetFunction());
923     JSHandle<JSTaggedValue> handler(thread, proxy->GetHandler());
924     if (handler->IsNull()) {
925         THROW_TYPE_ERROR_AND_RETURN(thread, "Constructor: handler is null", JSTaggedValue::Exception());
926     }
927     ASSERT(handler->IsECMAObject());
928     JSHandle<JSTaggedValue> target(thread, proxy->GetTarget());
929 
930     // 5.Let trap be GetMethod(handler, "construct").
931     JSHandle<JSTaggedValue> key(globalConst->GetHandledProxyConstructString());
932     JSHandle<JSTaggedValue> method = JSObject::GetMethod(thread, handler, key);
933 
934     // 6.ReturnIfAbrupt(trap).
935     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
936     // 7.If trap is undefined, then
937     //   a.Assert: target has a [[Construct]] internal method.
938     //   b.Return Construct(target, argumentsList, newTarget).
939     if (method->IsUndefined()) {
940         ASSERT(target->IsConstructor());
941         info->SetFunction(target.GetTaggedValue());
942         return JSFunction::Construct(info);
943     }
944 
945     // 8.Let argArray be CreateArrayFromList(argumentsList).
946     ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
947     uint32_t argc = info->GetArgsNumber();
948     JSHandle<TaggedArray> taggedArray = factory->NewTaggedArray(argc);
949     for (uint32_t index = 0; index < argc; ++index) {
950         taggedArray->Set(thread, index, info->GetCallArg(index));
951     }
952     JSHandle<JSArray> arrHandle = JSArray::CreateArrayFromList(thread, taggedArray);
953 
954     // step 8 ~ 9 Call(trap, handler, «target, argArray, newTarget »).
955     JSHandle<JSTaggedValue> newTarget(info->GetNewTarget());
956     const int32_t argsLength = 3;  // 3: «target, argArray, newTarget »
957     JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
958     EcmaRuntimeCallInfo *runtimeInfo =
959         EcmaInterpreter::NewRuntimeCallInfo(thread, method, handler, undefined, argsLength);
960     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
961     runtimeInfo->SetCallArg(target.GetTaggedValue(), arrHandle.GetTaggedValue(), newTarget.GetTaggedValue());
962     JSTaggedValue newObj = JSFunction::Call(runtimeInfo);
963 
964     // 10.ReturnIfAbrupt(newObj).
965     RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
966     // 11.If Type(newObj) is not Object, throw a TypeError exception.
967     if (!newObj.IsECMAObject()) {
968         THROW_TYPE_ERROR_AND_RETURN(thread, "new object is not object", JSTaggedValue::Exception());
969     }
970     // 12.Return newObj.
971     return newObj;
972 }
973 
IsArray(JSThread * thread) const974 bool JSProxy::IsArray(JSThread *thread) const
975 {
976     if (GetHandler().IsNull()) {
977         THROW_TYPE_ERROR_AND_RETURN(thread, "", false);
978     }
979     return GetTarget().IsArray(thread);
980 }
981 
GetSourceTarget(JSThread * thread) const982 JSHandle<JSTaggedValue> JSProxy::GetSourceTarget(JSThread *thread) const
983 {
984     JSMutableHandle<JSProxy> proxy(thread, JSTaggedValue(this));
985     JSMutableHandle<JSTaggedValue> target(thread, proxy->GetTarget());
986     while (target->IsJSProxy()) {
987         proxy.Update(target.GetTaggedValue());
988         target.Update(proxy->GetTarget());
989     }
990     return target;
991 }
992 }  // namespace panda::ecmascript
993