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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 (function(global, utils, extrasUtils) { | 5 (function(global, utils, extrasUtils) { |
6 | 6 |
7 "use strict"; | 7 "use strict"; |
8 | 8 |
9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
10 | 10 |
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137 return promise; | 137 return promise; |
138 } else { | 138 } else { |
139 var promiseCapability = NewPromiseCapability(this, true); | 139 var promiseCapability = NewPromiseCapability(this, true); |
140 %_Call(promiseCapability.reject, UNDEFINED, r); | 140 %_Call(promiseCapability.reject, UNDEFINED, r); |
141 return promiseCapability.promise; | 141 return promiseCapability.promise; |
142 } | 142 } |
143 } | 143 } |
144 | 144 |
145 // Combinators. | 145 // Combinators. |
146 | 146 |
147 // ES#sec-promise.resolve | |
148 // Promise.resolve ( x ) | |
149 function PromiseResolve(x) { | |
150 if (!IS_RECEIVER(this)) { | |
151 throw %make_type_error(kCalledOnNonObject, PromiseResolve); | |
152 } | |
153 if (%is_promise(x) && x.constructor === this) return x; | |
154 | |
155 // Avoid creating resolving functions. | |
156 if (this === GlobalPromise) { | |
157 var promise = %promise_internal_constructor(UNDEFINED); | |
158 %promise_resolve(promise, x); | |
159 return promise; | |
160 } | |
161 | |
162 // debugEvent is not so meaningful here as it will be resolved | |
163 var promiseCapability = NewPromiseCapability(this, true); | |
164 %_Call(promiseCapability.resolve, UNDEFINED, x); | |
165 return promiseCapability.promise; | |
166 } | |
167 | |
168 // ES#sec-promise.all | 147 // ES#sec-promise.all |
169 // Promise.all ( iterable ) | 148 // Promise.all ( iterable ) |
170 function PromiseAll(iterable) { | 149 function PromiseAll(iterable) { |
171 if (!IS_RECEIVER(this)) { | 150 if (!IS_RECEIVER(this)) { |
172 throw %make_type_error(kCalledOnNonObject, "Promise.all"); | 151 throw %make_type_error(kCalledOnNonObject, "Promise.all"); |
173 } | 152 } |
174 | 153 |
175 // false debugEvent so that forwarding the rejection through all does not | 154 // false debugEvent so that forwarding the rejection through all does not |
176 // trigger redundant ExceptionEvents | 155 // trigger redundant ExceptionEvents |
177 var deferred = NewPromiseCapability(this, false); | 156 var deferred = NewPromiseCapability(this, false); |
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329 %PromiseMarkAsHandled(promise); | 308 %PromiseMarkAsHandled(promise); |
330 } | 309 } |
331 | 310 |
332 // ------------------------------------------------------------------- | 311 // ------------------------------------------------------------------- |
333 // Install exported functions. | 312 // Install exported functions. |
334 | 313 |
335 utils.InstallFunctions(GlobalPromise, DONT_ENUM, [ | 314 utils.InstallFunctions(GlobalPromise, DONT_ENUM, [ |
336 "reject", PromiseReject, | 315 "reject", PromiseReject, |
337 "all", PromiseAll, | 316 "all", PromiseAll, |
338 "race", PromiseRace, | 317 "race", PromiseRace, |
339 "resolve", PromiseResolve | |
340 ]); | 318 ]); |
341 | 319 |
342 %InstallToContext([ | 320 %InstallToContext([ |
343 "promise_create", PromiseCreate, | 321 "promise_create", PromiseCreate, |
344 "promise_has_user_defined_reject_handler", PromiseHasUserDefinedRejectHandler, | 322 "promise_has_user_defined_reject_handler", PromiseHasUserDefinedRejectHandler, |
345 "promise_reject", DoRejectPromise, | 323 "promise_reject", DoRejectPromise, |
346 // TODO(gsathya): Remove this once we update the promise builtin. | 324 // TODO(gsathya): Remove this once we update the promise builtin. |
347 "promise_internal_reject", RejectPromise, | 325 "promise_internal_reject", RejectPromise, |
348 "promise_debug_get_info", PromiseDebugGetInfo, | 326 "promise_debug_get_info", PromiseDebugGetInfo, |
349 "new_promise_capability", NewPromiseCapability, | 327 "new_promise_capability", NewPromiseCapability, |
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362 ]); | 340 ]); |
363 | 341 |
364 utils.Export(function(to) { | 342 utils.Export(function(to) { |
365 to.PromiseCreate = PromiseCreate; | 343 to.PromiseCreate = PromiseCreate; |
366 | 344 |
367 to.CreateInternalPromiseCapability = CreateInternalPromiseCapability; | 345 to.CreateInternalPromiseCapability = CreateInternalPromiseCapability; |
368 to.RejectPromise = RejectPromise; | 346 to.RejectPromise = RejectPromise; |
369 }); | 347 }); |
370 | 348 |
371 }) | 349 }) |
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