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/builtins/builtins_promise_handler.h"
17
18 #include "ecmascript/global_env.h"
19 #include "ecmascript/interpreter/interpreter.h"
20 #include "ecmascript/jobs/micro_job_queue.h"
21 #include "ecmascript/js_array.h"
22 #include "ecmascript/js_async_function.h"
23 #include "ecmascript/js_handle.h"
24 #include "ecmascript/js_promise.h"
25 #include "ecmascript/js_tagged_value-inl.h"
26 #include "ecmascript/mem/assert_scope.h"
27
28 namespace panda::ecmascript::builtins {
29 // es6 25.4.1.3.2 Promise Resolve Functions
Resolve(EcmaRuntimeCallInfo * argv)30 JSTaggedValue BuiltinsPromiseHandler::Resolve(EcmaRuntimeCallInfo *argv)
31 {
32 ASSERT(argv);
33 BUILTINS_API_TRACE(argv->GetThread(), PromiseHandler, Resolve);
34 JSThread *thread = argv->GetThread();
35 [[maybe_unused]] EcmaHandleScope handleScope(thread);
36 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
37 auto ecmaVm = thread->GetEcmaVM();
38 JSHandle<GlobalEnv> env = ecmaVm->GetGlobalEnv();
39
40 // 1. Assert: F has a [[Promise]] internal slot whose value is an Object.
41 JSHandle<JSPromiseReactionsFunction> resolve = JSHandle<JSPromiseReactionsFunction>::Cast(GetConstructor(argv));
42 ASSERT_PRINT(resolve->GetPromise().IsECMAObject(), "Resolve: promise must be js object");
43
44 // 2. Let promise be the value of F's [[Promise]] internal slot.
45 // 3. Let alreadyResolved be the value of F's [[AlreadyResolved]] internal slot.
46 // 4. If alreadyResolved.[[value]] is true, return undefined.
47 // 5. Set alreadyResolved.[[value]] to true.
48 JSHandle<JSPromise> resolvePromise(thread, resolve->GetPromise());
49 JSHandle<PromiseRecord> alreadyResolved(thread, resolve->GetAlreadyResolved());
50 if (alreadyResolved->GetValue().IsTrue()) {
51 return JSTaggedValue::Undefined();
52 }
53 alreadyResolved->SetValue(thread, JSTaggedValue::True());
54
55 // 6. If SameValue(resolution, promise) is true, then
56 // a. Let selfResolutionError be a newly created TypeError object.
57 // b. Return RejectPromise(promise, selfResolutionError).
58 JSHandle<JSTaggedValue> resolution = BuiltinsBase::GetCallArg(argv, 0);
59 if (JSTaggedValue::SameValue(resolution.GetTaggedValue(), resolvePromise.GetTaggedValue())) {
60 JSHandle<JSObject> resolutionError =
61 factory->GetJSError(ErrorType::TYPE_ERROR, "Resolve: The promise and resolution cannot be the same.");
62 JSPromise::RejectPromise(thread, resolvePromise, JSHandle<JSTaggedValue>::Cast(resolutionError));
63 return JSTaggedValue::Undefined();
64 }
65 // 7. If Type(resolution) is not Object, then
66 // a. Return FulfillPromise(promise, resolution).
67 if (!resolution.GetTaggedValue().IsECMAObject()) {
68 JSPromise::FulfillPromise(thread, resolvePromise, resolution);
69 return JSTaggedValue::Undefined();
70 }
71 // 8. Let then be Get(resolution, "then").
72 // 9. If then is an abrupt completion, then
73 // a. Return RejectPromise(promise, then.[[value]]).
74 JSHandle<JSTaggedValue> thenKey(thread->GlobalConstants()->GetHandledPromiseThenString());
75 JSHandle<JSTaggedValue> thenValue = JSObject::GetProperty(thread, resolution, thenKey).GetValue();
76 if (thread->HasPendingException()) {
77 if (!thenValue->IsJSError()) {
78 thenValue = JSHandle<JSTaggedValue>(thread, thread->GetException());
79 }
80 thread->ClearException();
81 return JSPromise::RejectPromise(thread, resolvePromise, thenValue);
82 }
83 // 10. Let thenAction be then.[[value]].
84 // 11. If IsCallable(thenAction) is false, then
85 // a. Return FulfillPromise(promise, resolution).
86 if (!thenValue->IsCallable()) {
87 JSPromise::FulfillPromise(thread, resolvePromise, resolution);
88 return JSTaggedValue::Undefined();
89 }
90 // 12. Perform EnqueueJob ("PromiseJobs", PromiseResolveThenableJob, «promise, resolution, thenAction»)
91 JSHandle<TaggedArray> arguments = factory->NewTaggedArray(3); // 3: 3 means three args stored in array
92 arguments->Set(thread, 0, resolvePromise);
93 arguments->Set(thread, 1, resolution);
94 arguments->Set(thread, 2, thenValue); // 2: 2 means index of array is 2
95
96 JSHandle<JSFunction> promiseResolveThenableJob(env->GetPromiseResolveThenableJob());
97 JSHandle<job::MicroJobQueue> job = thread->GetEcmaVM()->GetMicroJobQueue();
98 job::MicroJobQueue::EnqueueJob(thread, job, job::QueueType::QUEUE_PROMISE, promiseResolveThenableJob, arguments);
99
100 // 13. Return undefined.
101 return JSTaggedValue::Undefined();
102 }
103
104 // es6 25.4.1.3.1 Promise Reject Functions
Reject(EcmaRuntimeCallInfo * argv)105 JSTaggedValue BuiltinsPromiseHandler::Reject(EcmaRuntimeCallInfo *argv)
106 {
107 ASSERT(argv);
108 BUILTINS_API_TRACE(argv->GetThread(), PromiseHandler, Reject);
109 JSThread *thread = argv->GetThread();
110 [[maybe_unused]] EcmaHandleScope handleScope(thread);
111
112 // 1. Assert: F has a [[Promise]] internal slot whose value is an Object.
113 JSHandle<JSPromiseReactionsFunction> reject = JSHandle<JSPromiseReactionsFunction>::Cast(GetConstructor(argv));
114 ASSERT_PRINT(reject->GetPromise().IsECMAObject(), "Reject: promise must be js object");
115
116 // 2. Let promise be the value of F's [[Promise]] internal slot.
117 // 3. Let alreadyResolved be the value of F's [[AlreadyResolved]] internal slot.
118 // 4. If alreadyResolved.[[value]] is true, return undefined.
119 // 5. Set alreadyResolved.[[value]] to true.
120 JSHandle<JSPromise> rejectPromise(thread, reject->GetPromise());
121 JSHandle<PromiseRecord> alreadyResolved(thread, reject->GetAlreadyResolved());
122 if (alreadyResolved->GetValue().IsTrue()) {
123 return JSTaggedValue::Undefined();
124 }
125 alreadyResolved->SetValue(thread, JSTaggedValue::True());
126
127 // 6. Return RejectPromise(promise, reason).
128 JSHandle<JSTaggedValue> reason = GetCallArg(argv, 0);
129 JSHandle<JSTaggedValue> result(thread, JSPromise::RejectPromise(thread, rejectPromise, reason));
130 return result.GetTaggedValue();
131 }
132
133 // es6 25.4.1.5.1 GetCapabilitiesExecutor Functions
Executor(EcmaRuntimeCallInfo * argv)134 JSTaggedValue BuiltinsPromiseHandler::Executor(EcmaRuntimeCallInfo *argv)
135 {
136 ASSERT(argv);
137 BUILTINS_API_TRACE(argv->GetThread(), PromiseHandler, Executor);
138 JSThread *thread = argv->GetThread();
139 [[maybe_unused]] EcmaHandleScope handleScope(thread);
140
141 // 1. Assert: F has a [[Capability]] internal slot whose value is a PromiseCapability Record.
142 JSHandle<JSPromiseExecutorFunction> executor = JSHandle<JSPromiseExecutorFunction>::Cast(GetConstructor(argv));
143 ASSERT_PRINT(executor->GetCapability().IsRecord(),
144 "Executor: F has a [[Capability]] internal slot whose value is a PromiseCapability Record.");
145
146 // 2. Let promiseCapability be the value of F's [[Capability]] internal slot.
147 // 3. If promiseCapability.[[Resolve]] is not undefined, throw a TypeError exception.
148 JSHandle<PromiseCapability> promiseCapability(thread, executor->GetCapability());
149 if (!promiseCapability->GetResolve().IsUndefined()) {
150 THROW_TYPE_ERROR_AND_RETURN(thread, "Executor: resolve should be undefine!", JSTaggedValue::Undefined());
151 }
152 // 4. If promiseCapability.[[Reject]] is not undefined, throw a TypeError exception.
153 if (!promiseCapability->GetReject().IsUndefined()) {
154 THROW_TYPE_ERROR_AND_RETURN(thread, "Executor: reject should be undefine!", JSTaggedValue::Undefined());
155 }
156 // 5. Set promiseCapability.[[Resolve]] to resolve.
157 // 6. Set promiseCapability.[[Reject]] to reject.
158 JSHandle<JSTaggedValue> resolve = GetCallArg(argv, 0);
159 JSHandle<JSTaggedValue> reject = GetCallArg(argv, 1);
160 promiseCapability->SetResolve(thread, resolve);
161 promiseCapability->SetReject(thread, reject);
162 // 7. Return undefined.
163 return JSTaggedValue::Undefined();
164 }
165
166 // es6 25.4.4.1.2 Promise.all Resolve Element Functions
ResolveElementFunction(EcmaRuntimeCallInfo * argv)167 JSTaggedValue BuiltinsPromiseHandler::ResolveElementFunction(EcmaRuntimeCallInfo *argv)
168 {
169 ASSERT(argv);
170 BUILTINS_API_TRACE(argv->GetThread(), PromiseHandler, ResolveElementFunction);
171 JSThread *thread = argv->GetThread();
172 [[maybe_unused]] EcmaHandleScope handleScope(thread);
173 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
174 JSHandle<JSPromiseAllResolveElementFunction> func =
175 JSHandle<JSPromiseAllResolveElementFunction>::Cast(GetConstructor(argv));
176 // 1. Let alreadyCalled be the value of F's [[AlreadyCalled]] internal slot.
177 JSHandle<PromiseRecord> alreadyCalled =
178 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, func->GetAlreadyCalled()));
179 // 2. If alreadyCalled.[[value]] is true, return undefined.
180 if (alreadyCalled->GetValue().IsTrue()) {
181 return JSTaggedValue::Undefined();
182 }
183 // 3. Set alreadyCalled.[[value]] to true.
184 alreadyCalled->SetValue(thread, JSTaggedValue::True());
185 // 4. Let index be the value of F's [[Index]] internal slot.
186 JSHandle<JSTaggedValue> index(thread, func->GetIndex());
187 // 5. Let values be the value of F's [[Values]] internal slot.
188 JSHandle<PromiseRecord> values = JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, func->GetValues()));
189 // 6. Let promiseCapability be the value of F's [[Capabilities]] internal slot.
190 JSHandle<PromiseCapability> capa =
191 JSHandle<PromiseCapability>::Cast(JSHandle<JSTaggedValue>(thread, func->GetCapabilities()));
192 // 7. Let remainingElementsCount be the value of F's [[RemainingElements]] internal slot.
193 JSHandle<PromiseRecord> remainCnt =
194 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, func->GetRemainingElements()));
195 // 8. Set values[index] to x.
196 JSHandle<TaggedArray> arrayValues =
197 JSHandle<TaggedArray>::Cast(JSHandle<JSTaggedValue>(thread, values->GetValue()));
198 arrayValues->Set(thread, JSTaggedValue::ToUint32(thread, index), GetCallArg(argv, 0).GetTaggedValue());
199 // 9. Set remainingElementsCount.[[value]] to remainingElementsCount.[[value]] - 1.
200 remainCnt->SetValue(thread, --JSTaggedNumber(remainCnt->GetValue()));
201 // 10. If remainingElementsCount.[[value]] is 0,
202 if (remainCnt->GetValue().IsZero()) {
203 // a. Let valuesArray be CreateArrayFromList(values).
204 JSHandle<JSArray> jsArrayValues = JSArray::CreateArrayFromList(thread, arrayValues);
205 // b. Return Call(promiseCapability.[[Resolve]], undefined, «valuesArray»).
206 JSHandle<JSTaggedValue> capaResolve(thread, capa->GetResolve());
207 JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
208 EcmaRuntimeCallInfo *info =
209 EcmaInterpreter::NewRuntimeCallInfo(thread, capaResolve, undefined, undefined, 1);
210 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
211 info->SetCallArg(jsArrayValues.GetTaggedValue());
212 return JSFunction::Call(info);
213 }
214 // 11. Return undefined.
215 return JSTaggedValue::Undefined();
216 }
217
AsyncAwaitFulfilled(EcmaRuntimeCallInfo * argv)218 JSTaggedValue BuiltinsPromiseHandler::AsyncAwaitFulfilled(EcmaRuntimeCallInfo *argv)
219 {
220 ASSERT(argv);
221 [[maybe_unused]] EcmaHandleScope handleScope(argv->GetThread());
222
223 JSHandle<JSTaggedValue> value = GetCallArg(argv, 0);
224 JSHandle<JSAsyncAwaitStatusFunction> func(GetConstructor(argv));
225 return JSAsyncAwaitStatusFunction::AsyncFunctionAwaitFulfilled(argv->GetThread(), func, value).GetTaggedValue();
226 }
227
AsyncAwaitRejected(EcmaRuntimeCallInfo * argv)228 JSTaggedValue BuiltinsPromiseHandler::AsyncAwaitRejected(EcmaRuntimeCallInfo *argv)
229 {
230 ASSERT(argv);
231 [[maybe_unused]] EcmaHandleScope handleScope(argv->GetThread());
232
233 JSHandle<JSTaggedValue> reason = GetCallArg(argv, 0);
234 JSHandle<JSAsyncAwaitStatusFunction> func(GetConstructor(argv));
235 return JSAsyncAwaitStatusFunction::AsyncFunctionAwaitRejected(argv->GetThread(), func, reason).GetTaggedValue();
236 }
237
valueThunkFunction(EcmaRuntimeCallInfo * argv)238 JSTaggedValue BuiltinsPromiseHandler::valueThunkFunction(EcmaRuntimeCallInfo *argv)
239 {
240 JSHandle<JSPromiseValueThunkOrThrowerFunction> valueThunk =
241 JSHandle<JSPromiseValueThunkOrThrowerFunction>::Cast(GetConstructor(argv));
242 return valueThunk->GetResult();
243 }
244
throwerFunction(EcmaRuntimeCallInfo * argv)245 JSTaggedValue BuiltinsPromiseHandler::throwerFunction(EcmaRuntimeCallInfo *argv)
246 {
247 JSThread *thread = argv->GetThread();
248 JSHandle<JSPromiseValueThunkOrThrowerFunction> thrower =
249 JSHandle<JSPromiseValueThunkOrThrowerFunction>::Cast(GetConstructor(argv));
250 JSTaggedValue undefined = thread->GlobalConstants()->GetUndefined();
251 THROW_NEW_ERROR_AND_RETURN_VALUE(thread, thrower->GetResult(), undefined);
252 }
253
ThenFinally(EcmaRuntimeCallInfo * argv)254 JSTaggedValue BuiltinsPromiseHandler::ThenFinally(EcmaRuntimeCallInfo *argv)
255 {
256 // 1. Let F be the active function object.
257 JSThread *thread = argv->GetThread();
258 auto ecmaVm = thread->GetEcmaVM();
259 ObjectFactory *factory = ecmaVm->GetFactory();
260 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
261 JSHandle<JSPromiseFinallyFunction> thenFinally(GetConstructor(argv));
262 JSHandle<JSTaggedValue> value = BuiltinsBase::GetCallArg(argv, 0);
263 // 2. Let onFinally be F.[[OnFinally]].
264 // 3. Assert: IsCallable(onFinally) is true.
265 JSHandle<JSTaggedValue> onFinally(thread, thenFinally->GetOnFinally());
266 ASSERT_PRINT(onFinally->IsCallable(), "onFinally is not callable");
267 // 4. Let result be ? Call(onFinally, undefined).
268 JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
269 EcmaRuntimeCallInfo *taggedInfo =
270 EcmaInterpreter::NewRuntimeCallInfo(thread, onFinally, undefined, undefined, 0);
271 JSTaggedValue result = JSFunction::Call(taggedInfo);
272 JSHandle<JSTaggedValue> resultHandle(thread, result);
273 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
274 // 5. Let C be F.[[Constructor]].
275 // 6. Assert: IsConstructor(C) is true.
276 JSHandle<JSTaggedValue> thenFinallyConstructor(thread, thenFinally->GetConstructor());
277 ASSERT_PRINT(thenFinallyConstructor->IsConstructor(), "thenFinallyConstructor is not constructor");
278 // 7. Let promise be ? PromiseResolve(C, result).
279 JSHandle<JSTaggedValue> promiseHandle =
280 BuiltinsPromiseHandler::PromiseResolve(thread, thenFinallyConstructor, resultHandle);
281 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
282 // 8. Let valueThunk be equivalent to a function that returns value.
283 JSHandle<JSPromiseValueThunkOrThrowerFunction> valueThunk =
284 factory->NewJSPromiseValueThunkFunction();
285 valueThunk->SetResult(thread, value);
286 JSHandle<JSTaggedValue> thenKey(globalConst->GetHandledPromiseThenString());
287 EcmaRuntimeCallInfo *invokeInfo =
288 EcmaInterpreter::NewRuntimeCallInfo(thread, undefined, promiseHandle, undefined, 1);
289 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
290 invokeInfo->SetCallArg(valueThunk.GetTaggedValue());
291 // 9. Return ? Invoke(promise, "then", « valueThunk »).
292 return JSFunction::Invoke(invokeInfo, thenKey);
293 }
294
CatchFinally(EcmaRuntimeCallInfo * argv)295 JSTaggedValue BuiltinsPromiseHandler::CatchFinally(EcmaRuntimeCallInfo *argv)
296 {
297 // 1. Let F be the active function object.
298 JSThread *thread = argv->GetThread();
299 auto ecmaVm = thread->GetEcmaVM();
300 ObjectFactory *factory = ecmaVm->GetFactory();
301 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
302 JSHandle<JSPromiseFinallyFunction> catchFinally(GetConstructor(argv));
303 // 2. Let onFinally be F.[[OnFinally]].
304 // 3. Assert: IsCallable(onFinally) is true.
305 JSHandle<JSTaggedValue> onFinally(thread, catchFinally->GetOnFinally());
306 ASSERT_PRINT(onFinally->IsCallable(), "thenOnFinally is not callable");
307 // 4. Let result be ? Call(onFinally, undefined).
308 JSHandle<JSTaggedValue> undefined = globalConst->GetHandledUndefined();
309 EcmaRuntimeCallInfo *info =
310 EcmaInterpreter::NewRuntimeCallInfo(thread, onFinally, undefined, undefined, 0);
311 JSTaggedValue result = JSFunction::Call(info);
312 JSHandle<JSTaggedValue> resultHandle(thread, result);
313 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
314 // 5. Let C be F.[[Constructor]].
315 // 6. Assert: IsConstructor(C) is true.
316 JSHandle<JSTaggedValue> catchFinallyConstructor(thread, catchFinally->GetConstructor());
317 ASSERT_PRINT(catchFinallyConstructor->IsConstructor(), "catchFinallyConstructor is not constructor");
318 // 7. Let promise be ? PromiseResolve(C, result).
319 JSHandle<JSTaggedValue> promiseHandle =
320 BuiltinsPromiseHandler::PromiseResolve(thread, catchFinallyConstructor, resultHandle);
321 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
322 // 8. Let thrower be equivalent to a function that throws reason.
323 JSHandle<JSTaggedValue> reason = BuiltinsBase::GetCallArg(argv, 0);
324 JSHandle<JSTaggedValue> thenKey(globalConst->GetHandledPromiseThenString());
325 JSHandle<JSPromiseValueThunkOrThrowerFunction> thrower =
326 factory->NewJSPromiseThrowerFunction();
327 thrower->SetResult(thread, reason);
328 EcmaRuntimeCallInfo *invokeInfo =
329 EcmaInterpreter::NewRuntimeCallInfo(thread, undefined, promiseHandle, undefined, 1);
330 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
331 invokeInfo->SetCallArg(thrower.GetTaggedValue());
332 // 9. Return ? Invoke(promise, "then", « thrower »).
333 return JSFunction::Invoke(invokeInfo, thenKey);
334 }
335
PromiseResolve(JSThread * thread,const JSHandle<JSTaggedValue> & constructor,const JSHandle<JSTaggedValue> & xValue)336 JSHandle<JSTaggedValue> BuiltinsPromiseHandler::PromiseResolve(JSThread *thread,
337 const JSHandle<JSTaggedValue> &constructor,
338 const JSHandle<JSTaggedValue> &xValue)
339 {
340 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
341 // 1. Assert: Type(C) is Object.
342 ASSERT_PRINT(constructor->IsECMAObject(), "PromiseResolve : is not callable");
343 // 2. If IsPromise(x) is true, then
344 if (xValue->IsJSPromise()) {
345 // a. Let xConstructor be ? Get(x, "constructor").
346 JSHandle<JSTaggedValue> ctorKey(globalConst->GetHandledConstructorString());
347 JSHandle<JSTaggedValue> ctorValue = JSObject::GetProperty(thread, xValue, ctorKey).GetValue();
348 RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, ctorValue);
349 // b. If SameValue(xConstructor, C) is true, return x.
350 if (JSTaggedValue::SameValue(ctorValue, constructor)) {
351 return xValue;
352 }
353 }
354 // 3. Let promiseCapability be ? NewPromiseCapability(C).
355 // 4. ReturnIfAbrupt(promiseCapability)
356 JSHandle<PromiseCapability> promiseCapability = JSPromise::NewPromiseCapability(thread, constructor);
357 JSHandle<JSTaggedValue> promiseCapaHandle = JSHandle<JSTaggedValue>::Cast(promiseCapability);
358 RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, promiseCapaHandle);
359 // 6. Let resolveResult be Call(promiseCapability.[[Resolve]], undefined, «x»).
360 // 7. ReturnIfAbrupt(resolveResult).
361 JSHandle<JSTaggedValue> resolve(thread, promiseCapability->GetResolve());
362 JSHandle<JSTaggedValue> undefined(globalConst->GetHandledUndefined());
363 EcmaRuntimeCallInfo *info =
364 EcmaInterpreter::NewRuntimeCallInfo(thread, resolve, undefined, undefined, 1);
365 RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, promiseCapaHandle);
366 info->SetCallArg(xValue.GetTaggedValue());
367 JSTaggedValue resolveResult = JSFunction::Call(info);
368 JSHandle<JSTaggedValue> resolveResultHandle(thread, resolveResult);
369 RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, resolveResultHandle);
370 // 8. Return promiseCapability.[[Promise]].
371 JSHandle<JSTaggedValue> promise(thread, promiseCapability->GetPromise());
372 return promise;
373 }
374
AllSettledResolveElementFunction(EcmaRuntimeCallInfo * argv)375 JSTaggedValue BuiltinsPromiseHandler::AllSettledResolveElementFunction(EcmaRuntimeCallInfo *argv)
376 {
377 // 1. Let F be the active function object.
378 JSThread *thread = argv->GetThread();
379 JSHandle<GlobalEnv> env = thread->GetEcmaVM()->GetGlobalEnv();
380 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
381 JSHandle<JSPromiseAllSettledElementFunction> resolveElement =
382 JSHandle<JSPromiseAllSettledElementFunction>::Cast((GetConstructor(argv)));
383 // 2. Let alreadyCalled be F.[[AlreadyCalled]].
384 JSHandle<PromiseRecord> alreadyCalled =
385 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, resolveElement->GetAlreadyCalled()));
386 // 3. If alreadyCalled.[[Value]] is true, return undefined.
387 if (alreadyCalled->GetValue().IsTrue()) {
388 return JSTaggedValue::Undefined();
389 }
390 // 4. Set alreadyCalled.[[Value]] to true.
391 alreadyCalled->SetValue(thread, JSTaggedValue::True());
392 // 5. Let index be F.[[Index]].
393 uint32_t index = resolveElement->GetIndex();
394 // 6. Let values be F.[[Values]].
395 JSHandle<PromiseRecord> values =
396 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, resolveElement->GetValues()));
397 // 7. Let promiseCapability be F.[[Capability]].
398 JSHandle<PromiseCapability> capa =
399 JSHandle<PromiseCapability>::Cast(JSHandle<JSTaggedValue>(thread, resolveElement->GetCapability()));
400 // 8. Let remainingElementsCount be F.[[RemainingElements]].
401 JSHandle<PromiseRecord> remainCnt =
402 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, resolveElement->GetRemainingElements()));
403 // 9. Let obj be ! OrdinaryObjectCreate(%Object.prototype%).
404 JSHandle<JSTaggedValue> proto = env->GetObjectFunctionPrototype();
405 JSHandle<JSObject> obj = thread->GetEcmaVM()->GetFactory()->OrdinaryNewJSObjectCreate(proto);
406 // 10. Perform ! CreateDataPropertyOrThrow(obj, "status", "fulfilled").
407 JSHandle<JSTaggedValue> statusKey = globalConst->GetHandledPromiseStatusString();
408 JSHandle<JSTaggedValue> fulfilledKey = globalConst->GetHandledPromiseFulfilledString();
409 JSObject::CreateDataPropertyOrThrow(thread, obj, statusKey, fulfilledKey);
410 // 11. Perform ! CreateDataPropertyOrThrow(obj, "value", x).
411 JSHandle<JSTaggedValue> valueKey = globalConst->GetHandledValueString();
412 JSHandle<JSTaggedValue> xValue = GetCallArg(argv, 0);
413 JSObject::CreateDataPropertyOrThrow(thread, obj, valueKey, xValue);
414 // 12. Set values[index] to obj.
415 JSHandle<TaggedArray> arrayValues =
416 JSHandle<TaggedArray>::Cast(JSHandle<JSTaggedValue>(thread, values->GetValue()));
417 arrayValues->Set(thread, index, obj.GetTaggedValue());
418 // 13. Set remainingElementsCount.[[Value]] to remainingElementsCount.[[Value]] - 1.
419 remainCnt->SetValue(thread, --JSTaggedNumber(remainCnt->GetValue()));
420 // 14. If remainingElementsCount.[[Value]] is 0, then
421 if (remainCnt->GetValue().IsZero()) {
422 // a. Let valuesArray be CreateArrayFromList(values).
423 JSHandle<JSArray> jsArrayValues = JSArray::CreateArrayFromList(thread, arrayValues);
424 // b. Return ? Call(promiseCapability.[[Resolve]], undefined, « valuesArray »).
425 JSHandle<JSTaggedValue> capaResolve(thread, capa->GetResolve());
426 JSHandle<JSTaggedValue> undefined(globalConst->GetHandledUndefined());
427 EcmaRuntimeCallInfo *info =
428 EcmaInterpreter::NewRuntimeCallInfo(thread, capaResolve, undefined, undefined, 1);
429 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
430 info->SetCallArg(jsArrayValues.GetTaggedValue());
431 return JSFunction::Call(info);
432 }
433 // 15. Return undefined.
434 return JSTaggedValue::Undefined();
435 }
436
AllSettledRejectElementFunction(EcmaRuntimeCallInfo * argv)437 JSTaggedValue BuiltinsPromiseHandler::AllSettledRejectElementFunction(EcmaRuntimeCallInfo *argv)
438 {
439 // 1. Let F be the active function object.
440 JSThread *thread = argv->GetThread();
441 JSHandle<GlobalEnv> env = thread->GetEcmaVM()->GetGlobalEnv();
442 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
443 JSHandle<JSPromiseAllSettledElementFunction> rejectElement =
444 JSHandle<JSPromiseAllSettledElementFunction>::Cast((GetConstructor(argv)));
445 // 2. Let alreadyCalled be F.[[AlreadyCalled]].
446 JSHandle<PromiseRecord> alreadyCalled =
447 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetAlreadyCalled()));
448 // 3. If alreadyCalled.[[Value]] is true, return undefined.
449 if (alreadyCalled->GetValue().IsTrue()) {
450 return JSTaggedValue::Undefined();
451 }
452 // 4. Set alreadyCalled.[[Value]] to true.
453 alreadyCalled->SetValue(thread, JSTaggedValue::True());
454 // 5. Let index be F.[[Index]].
455 uint32_t index = rejectElement->GetIndex();
456 // 6. Let values be F.[[Values]].
457 JSHandle<PromiseRecord> values =
458 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetValues()));
459 // 7. Let promiseCapability be F.[[Capability]].
460 [[maybe_unused]] JSHandle<PromiseCapability> capa =
461 JSHandle<PromiseCapability>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetCapability()));
462 // 8. Let remainingElementsCount be F.[[RemainingElements]].
463 [[maybe_unused]] JSHandle<PromiseRecord> remainCnt =
464 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetRemainingElements()));
465 // 9. Let obj be ! OrdinaryObjectCreate(%Object.prototype%).
466 JSHandle<JSTaggedValue> proto = env->GetObjectFunctionPrototype();
467 JSHandle<JSObject> obj = thread->GetEcmaVM()->GetFactory()->OrdinaryNewJSObjectCreate(proto);
468 // 10. Perform ! CreateDataPropertyOrThrow(obj, "status", "rejected").
469 JSHandle<JSTaggedValue> statusKey = globalConst->GetHandledPromiseStatusString();
470 JSHandle<JSTaggedValue> rejectedKey = globalConst->GetHandledPromiseRejectedString();
471 JSObject::CreateDataPropertyOrThrow(thread, obj, statusKey, rejectedKey);
472 // 11. Perform ! CreateDataPropertyOrThrow(obj, "reason", x).
473 JSHandle<JSTaggedValue> xReason = GetCallArg(argv, 0);
474 JSHandle<JSTaggedValue> reasonKey = globalConst->GetHandledPromiseReasonString();
475 JSObject::CreateDataPropertyOrThrow(thread, obj, reasonKey, xReason);
476 // 12. Set values[index] to obj.
477 JSHandle<TaggedArray> arrayValues =
478 JSHandle<TaggedArray>::Cast(JSHandle<JSTaggedValue>(thread, values->GetValue()));
479 arrayValues->Set(thread, index, obj.GetTaggedValue());
480 // 13. Set remainingElementsCount.[[Value]] to remainingElementsCount.[[Value]] - 1.
481 remainCnt->SetValue(thread, --JSTaggedNumber(remainCnt->GetValue()));
482 // 14. If remainingElementsCount.[[Value]] is 0, then
483 if (remainCnt->GetValue().IsZero()) {
484 // a. Let valuesArray be CreateArrayFromList(values).
485 JSHandle<JSArray> jsArrayValues = JSArray::CreateArrayFromList(thread, arrayValues);
486 // b. Return ? Call(promiseCapability.[[Resolve]], undefined, « valuesArray »).
487 JSHandle<JSTaggedValue> capaResolve(thread, capa->GetResolve());
488 JSHandle<JSTaggedValue> undefined(globalConst->GetHandledUndefined());
489 EcmaRuntimeCallInfo *info =
490 EcmaInterpreter::NewRuntimeCallInfo(thread, capaResolve, undefined, undefined, 1);
491 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
492 info->SetCallArg(jsArrayValues.GetTaggedValue());
493 return JSFunction::Call(info);
494 }
495 // 15. Return undefined.
496 return JSTaggedValue::Undefined();
497 }
498
AnyRejectElementFunction(EcmaRuntimeCallInfo * argv)499 JSTaggedValue BuiltinsPromiseHandler::AnyRejectElementFunction(EcmaRuntimeCallInfo *argv)
500 {
501 // 1. Let F be the active function object.
502 JSThread *thread = argv->GetThread();
503 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
504 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
505 JSHandle<JSPromiseAnyRejectElementFunction> rejectElement =
506 JSHandle<JSPromiseAnyRejectElementFunction>::Cast((GetConstructor(argv)));
507 // 2. If F.[[AlreadyCalled]] is true, return undefined.
508 JSTaggedValue alreadyCalled = rejectElement->GetAlreadyCalled();
509 if (alreadyCalled.IsTrue()) {
510 return JSTaggedValue::Undefined();
511 }
512 // 3. Set F.[[AlreadyCalled]] to true.
513 rejectElement->SetAlreadyCalled(thread, JSTaggedValue::True());
514 // 4. Let index be F.[[Index]].
515 uint32_t index = rejectElement->GetIndex();
516 // 5. Let errors be F.[[Errors]].
517 [[maybe_unused]] JSHandle<PromiseRecord> errors =
518 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetErrors()));
519 // 6. Let promiseCapability be F.[[Capability]].
520 [[maybe_unused]] JSHandle<PromiseCapability> capa =
521 JSHandle<PromiseCapability>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetCapability()));
522 // 7. Let remainingElementsCount be F.[[RemainingElements]].
523 JSHandle<PromiseRecord> remainCnt =
524 JSHandle<PromiseRecord>::Cast(JSHandle<JSTaggedValue>(thread, rejectElement->GetRemainingElements()));
525 // 8. Set errors[index] to x.
526 JSHandle<JSTaggedValue> xValue = GetCallArg(argv, 0);
527 JSHandle<TaggedArray> errorsArray =
528 JSHandle<TaggedArray>::Cast(JSHandle<JSTaggedValue>(thread, errors->GetValue()));
529 errorsArray->Set(thread, index, xValue.GetTaggedValue());
530 // 9. Set remainingElementsCount.[[Value]] to remainingElementsCount.[[Value]] - 1.
531 remainCnt->SetValue(thread, --JSTaggedNumber(remainCnt->GetValue()));
532 // 10. If remainingElementsCount.[[Value]] is 0, then
533 if (remainCnt->GetValue().IsZero()) {
534 // a. Let error be a newly created AggregateError object.
535 JSHandle<JSObject> error = factory->NewJSAggregateError();
536 // b. Perform ! DefinePropertyOrThrow(error, "errors", PropertyDescriptor { [[Configurable]]: true,
537 // [[Enumerable]]: false, [[Writable]]: true, [[Value]]: ! CreateArrayFromList(errors) }).
538 JSHandle<JSTaggedValue> errorsKey(thread, globalConst->GetErrorsString());
539 JSHandle<JSTaggedValue> errorsValue(JSArray::CreateArrayFromList(thread, errorsArray));
540 PropertyDescriptor msgDesc(thread, errorsValue, true, false, true);
541 JSHandle<JSTaggedValue> errorTagged = JSHandle<JSTaggedValue>::Cast(error);
542 JSTaggedValue::DefinePropertyOrThrow(thread, errorTagged, errorsKey, msgDesc);
543 // c. Return ? Call(promiseCapability.[[Reject]], undefined, « error »).
544 JSHandle<JSTaggedValue> capaReject(thread, capa->GetReject());
545 JSHandle<JSTaggedValue> undefined(globalConst->GetHandledUndefined());
546 EcmaRuntimeCallInfo *info =
547 EcmaInterpreter::NewRuntimeCallInfo(thread, capaReject, undefined, undefined, 1);
548 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
549 info->SetCallArg(error.GetTaggedValue());
550 return JSFunction::Call(info);
551 }
552 // 11. Return undefined.
553 return JSTaggedValue::Undefined();
554 }
555 } // namespace panda::ecmascript::builtins
556