Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(303)

Side by Side Diff: src/js/async-await.js

Issue 2451163003: [promises] Move PromiseReject to c++ (Closed)
Patch Set: fix handle Created 4 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « no previous file | src/js/promise.js » ('j') | src/runtime/runtime-internal.cc » ('J')
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright 2016 the V8 project authors. All rights reserved. 1 // Copyright 2016 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
11 // ------------------------------------------------------------------- 11 // -------------------------------------------------------------------
12 // Imports 12 // Imports
13 13
14 var AsyncFunctionNext; 14 var AsyncFunctionNext;
15 var AsyncFunctionThrow; 15 var AsyncFunctionThrow;
16 var GlobalPromise; 16 var GlobalPromise;
17 var IsPromise; 17 var IsPromise;
18 var NewPromiseCapability; 18 var NewPromiseCapability;
19 var PerformPromiseThen; 19 var PerformPromiseThen;
20 var PromiseCreate; 20 var PromiseCreate;
21 var PromiseNextMicrotaskID; 21 var PromiseNextMicrotaskID;
22 var RejectPromise; 22 var PromiseSet;
23 var ResolvePromise; 23 var ResolvePromise;
24 var kPromiseRejected;
24 25
25 utils.Import(function(from) { 26 utils.Import(function(from) {
26 AsyncFunctionNext = from.AsyncFunctionNext; 27 AsyncFunctionNext = from.AsyncFunctionNext;
27 AsyncFunctionThrow = from.AsyncFunctionThrow; 28 AsyncFunctionThrow = from.AsyncFunctionThrow;
28 GlobalPromise = from.GlobalPromise; 29 GlobalPromise = from.GlobalPromise;
29 IsPromise = from.IsPromise; 30 IsPromise = from.IsPromise;
30 NewPromiseCapability = from.NewPromiseCapability; 31 NewPromiseCapability = from.NewPromiseCapability;
31 PerformPromiseThen = from.PerformPromiseThen; 32 PerformPromiseThen = from.PerformPromiseThen;
32 PromiseCreate = from.PromiseCreate; 33 PromiseCreate = from.PromiseCreate;
33 RejectPromise = from.RejectPromise; 34 PromiseSet = from.PromiseSet;
34 ResolvePromise = from.ResolvePromise; 35 ResolvePromise = from.ResolvePromise;
36 kPromiseRejected = from.kPromiseRejected;
35 }); 37 });
36 38
37 var promiseAsyncStackIDSymbol = 39 var promiseAsyncStackIDSymbol =
38 utils.ImportNow("promise_async_stack_id_symbol"); 40 utils.ImportNow("promise_async_stack_id_symbol");
39 var promiseHandledBySymbol = 41 var promiseHandledBySymbol =
40 utils.ImportNow("promise_handled_by_symbol"); 42 utils.ImportNow("promise_handled_by_symbol");
41 var promiseForwardingHandlerSymbol = 43 var promiseForwardingHandlerSymbol =
42 utils.ImportNow("promise_forwarding_handler_symbol"); 44 utils.ImportNow("promise_forwarding_handler_symbol");
43 var promiseHandledHintSymbol = 45 var promiseHandledHintSymbol =
44 utils.ImportNow("promise_handled_hint_symbol"); 46 utils.ImportNow("promise_handled_hint_symbol");
(...skipping 78 matching lines...) Expand 10 before | Expand all | Expand 10 after
123 // prediction indicates that there is a locally surrounding catch block 125 // prediction indicates that there is a locally surrounding catch block
124 function AsyncFunctionAwaitCaught(generator, awaited, outerPromise) { 126 function AsyncFunctionAwaitCaught(generator, awaited, outerPromise) {
125 if (DEBUG_IS_ACTIVE && IsPromise(awaited)) { 127 if (DEBUG_IS_ACTIVE && IsPromise(awaited)) {
126 SET_PRIVATE(awaited, promiseHandledHintSymbol, true); 128 SET_PRIVATE(awaited, promiseHandledHintSymbol, true);
127 } 129 }
128 AsyncFunctionAwait(generator, awaited, outerPromise); 130 AsyncFunctionAwait(generator, awaited, outerPromise);
129 } 131 }
130 132
131 // How the parser rejects promises from async/await desugaring 133 // How the parser rejects promises from async/await desugaring
132 function RejectPromiseNoDebugEvent(promise, reason) { 134 function RejectPromiseNoDebugEvent(promise, reason) {
133 return RejectPromise(promise, reason, false); 135 %PromiseReject(promise, reason, false);
136 PromiseSet(promise, kPromiseRejected, reason);
134 } 137 }
135 138
136 function AsyncFunctionPromiseCreate() { 139 function AsyncFunctionPromiseCreate() {
137 var promise = PromiseCreate(); 140 var promise = PromiseCreate();
138 if (DEBUG_IS_ACTIVE) { 141 if (DEBUG_IS_ACTIVE) {
139 // Push the Promise under construction in an async function on 142 // Push the Promise under construction in an async function on
140 // the catch prediction stack to handle exceptions thrown before 143 // the catch prediction stack to handle exceptions thrown before
141 // the first await. 144 // the first await.
142 %DebugPushPromise(promise); 145 %DebugPushPromise(promise);
143 // Assign ID and create a recurring task to save stack for future 146 // Assign ID and create a recurring task to save stack for future
(...skipping 23 matching lines...) Expand all
167 170
168 %InstallToContext([ 171 %InstallToContext([
169 "async_function_await_caught", AsyncFunctionAwaitCaught, 172 "async_function_await_caught", AsyncFunctionAwaitCaught,
170 "async_function_await_uncaught", AsyncFunctionAwaitUncaught, 173 "async_function_await_uncaught", AsyncFunctionAwaitUncaught,
171 "reject_promise_no_debug_event", RejectPromiseNoDebugEvent, 174 "reject_promise_no_debug_event", RejectPromiseNoDebugEvent,
172 "async_function_promise_create", AsyncFunctionPromiseCreate, 175 "async_function_promise_create", AsyncFunctionPromiseCreate,
173 "async_function_promise_release", AsyncFunctionPromiseRelease, 176 "async_function_promise_release", AsyncFunctionPromiseRelease,
174 ]); 177 ]);
175 178
176 }) 179 })
OLDNEW
« no previous file with comments | « no previous file | src/js/promise.js » ('j') | src/runtime/runtime-internal.cc » ('J')

Powered by Google App Engine
This is Rietveld 408576698