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1 /* | |
2 * Copyright (C) 2013, Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions | |
6 * are met: | |
7 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y | |
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N | |
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 */ | |
24 | |
25 #ifndef V8PromiseCustom_h | |
26 #define V8PromiseCustom_h | |
27 | |
28 #include "bindings/v8/WrapperTypeInfo.h" | |
29 | |
30 #include <v8.h> | |
31 | |
32 namespace WebCore { | |
33 | |
34 class V8PromiseCustom { | |
35 public: | |
36 enum InternalFieldIndex { | |
37 InternalStateIndex, | |
38 InternalResultIndex, | |
39 InternalFulfillCallbackIndex, | |
40 InternalRejectCallbackIndex, | |
41 InternalDerivedPromiseIndex, | |
42 InternalFieldCount, // This entry must always be at the bottom. | |
43 }; | |
44 | |
45 enum PromiseAllEnvironmentFieldIndex { | |
46 PromiseAllEnvironmentPromiseIndex, | |
47 PromiseAllEnvironmentCountdownIndex, | |
48 PromiseAllEnvironmentIndexIndex, | |
49 PromiseAllEnvironmentResultsIndex, | |
50 PromiseAllEnvironmentFieldCount, // This entry must always be at the bot
tom. | |
51 }; | |
52 | |
53 enum PrimitiveWrapperFieldIndex { | |
54 PrimitiveWrapperPrimitiveIndex, | |
55 PrimitiveWrapperFieldCount, // This entry must always be at the bottom. | |
56 }; | |
57 | |
58 enum PromiseState { | |
59 Pending, | |
60 Fulfilled, | |
61 Rejected, | |
62 Following, | |
63 }; | |
64 | |
65 static v8::Local<v8::Object> createPromise(v8::Handle<v8::Object> creationCo
ntext, v8::Isolate*); | |
66 | |
67 // |promise| must be a Promise instance. | |
68 static v8::Local<v8::Object> getInternal(v8::Handle<v8::Object> promise); | |
69 | |
70 // |internal| must be a Promise internal object. | |
71 static PromiseState getState(v8::Handle<v8::Object> internal); | |
72 | |
73 // Return true if |maybePromise| is a Promise instance. | |
74 static bool isPromise(v8::Handle<v8::Value> maybePromise, v8::Isolate*); | |
75 | |
76 // Coerces |maybePromise| to a Promise instance. | |
77 static v8::Local<v8::Object> toPromise(v8::Handle<v8::Value> maybePromise, v
8::Isolate*); | |
78 | |
79 // |promise| must be a Promise instance. | |
80 static void resolve(v8::Handle<v8::Object> promise, v8::Handle<v8::Value> re
sult, v8::Isolate*); | |
81 | |
82 // |promise| must be a Promise instance. | |
83 static void reject(v8::Handle<v8::Object> promise, v8::Handle<v8::Value> res
ult, v8::Isolate*); | |
84 | |
85 // |promise| must be a Promise instance. | |
86 // |onFulfilled| and |onRejected| can be an empty value respectively. | |
87 // Appends |onFulfilled| and/or |onRejected| handlers to |promise|. | |
88 static v8::Local<v8::Object> then(v8::Handle<v8::Object> promise, v8::Handle
<v8::Function> onFulfilled, v8::Handle<v8::Function> onRejected, v8::Isolate*); | |
89 | |
90 // |promise| must be a Promise instance. | |
91 // Set a |promise|'s value and propagate it to derived promises. | |
92 static void setValue(v8::Handle<v8::Object> promise, v8::Handle<v8::Value>,
v8::Isolate*); | |
93 | |
94 // |promise| must be a Promise instance. | |
95 // Set a |promise|'s failure reason and propagate it to derived promises. | |
96 static void setReason(v8::Handle<v8::Object> promise, v8::Handle<v8::Value>,
v8::Isolate*); | |
97 | |
98 // |promise| must be a Promise instance. | |
99 // Propagate a |promise|'s value or reason to all of its derived promies. | |
100 static void propagateToDerived(v8::Handle<v8::Object> promise, v8::Isolate*)
; | |
101 | |
102 // |derivedPromise| and |originator| must be a Promise instance. | |
103 // |onFulfilled| and |onRejected| can be an empty value respectively. | |
104 // Propagate |originator|'s state to |derivedPromise|. | |
105 static void updateDerived(v8::Handle<v8::Object> derivedPromise, v8::Handle<
v8::Function> onFulfilled, v8::Handle<v8::Function> onRejected, v8::Handle<v8::O
bject> originator, v8::Isolate*); | |
106 | |
107 // |derivedPromise| must be a Promise instance. | |
108 // Propagate a value to |derivedPromise|. | |
109 static void updateDerivedFromValue(v8::Handle<v8::Object> derivedPromise, v8
::Handle<v8::Function> onFulfilled, v8::Handle<v8::Value>, v8::Isolate*); | |
110 | |
111 // |derivedPromise| must be a Promise instance. | |
112 // Propagate a failure reason to |derivedPromise|. | |
113 static void updateDerivedFromReason(v8::Handle<v8::Object> derivedPromise, v
8::Handle<v8::Function> onRejected, v8::Handle<v8::Value>, v8::Isolate*); | |
114 | |
115 // |derivedPromise| and |promise| must be a Promise instance. | |
116 // |onFulfilled| and |onRejected| can be an empty value respectively. | |
117 // Propagate |promise|'s state to |derivedPromise|. | |
118 static void updateDerivedFromPromise(v8::Handle<v8::Object> derivedPromise,
v8::Handle<v8::Function> onFulfilled, v8::Handle<v8::Function> onRejected, v8::H
andle<v8::Object> promise, v8::Isolate*); | |
119 | |
120 // Returns a Promise instance that will be fulfilled or rejected by | |
121 // |thenable|'s result. | |
122 static v8::Local<v8::Object> coerceThenable(v8::Handle<v8::Object> thenable,
v8::Handle<v8::Function> then, v8::Isolate*); | |
123 | |
124 // |promise| must be a Promise instance. | |
125 // Applies a transformation to an argument and use it to update derived | |
126 // promies. | |
127 static void callHandler(v8::Handle<v8::Object> promise, v8::Handle<v8::Funct
ion> handler, v8::Handle<v8::Value> argument, PromiseState originatorState, v8::
Isolate*); | |
128 }; | |
129 | |
130 } // namespace WebCore | |
131 | |
132 #endif // V8PromiseCustom_h | |
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