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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium 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 #ifndef ScriptPromiseResolver_h | 5 #ifndef ScriptPromiseResolver_h |
6 #define ScriptPromiseResolver_h | 6 #define ScriptPromiseResolver_h |
7 | 7 |
8 #include "bindings/core/v8/ScopedPersistent.h" | 8 #include "bindings/core/v8/ScopedPersistent.h" |
9 #include "bindings/core/v8/ScriptPromise.h" | 9 #include "bindings/core/v8/ScriptPromise.h" |
10 #include "bindings/core/v8/ScriptState.h" | 10 #include "bindings/core/v8/ScriptState.h" |
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34 USING_GARBAGE_COLLECTED_MIXIN(ScriptPromiseResolver); | 34 USING_GARBAGE_COLLECTED_MIXIN(ScriptPromiseResolver); |
35 WTF_MAKE_NONCOPYABLE(ScriptPromiseResolver); | 35 WTF_MAKE_NONCOPYABLE(ScriptPromiseResolver); |
36 | 36 |
37 public: | 37 public: |
38 static ScriptPromiseResolver* create(ScriptState* scriptState) { | 38 static ScriptPromiseResolver* create(ScriptState* scriptState) { |
39 ScriptPromiseResolver* resolver = new ScriptPromiseResolver(scriptState); | 39 ScriptPromiseResolver* resolver = new ScriptPromiseResolver(scriptState); |
40 resolver->suspendIfNeeded(); | 40 resolver->suspendIfNeeded(); |
41 return resolver; | 41 return resolver; |
42 } | 42 } |
43 | 43 |
44 #if ENABLE(ASSERT) | 44 #if DCHECK_IS_ON() |
45 // Eagerly finalized so as to ensure valid access to getExecutionContext() | 45 // Eagerly finalized so as to ensure valid access to getExecutionContext() |
46 // from the destructor's assert. | 46 // from the destructor's assert. |
47 EAGERLY_FINALIZE(); | 47 EAGERLY_FINALIZE(); |
48 | 48 |
49 ~ScriptPromiseResolver() override { | 49 ~ScriptPromiseResolver() override { |
50 // This assertion fails if: | 50 // This assertion fails if: |
51 // - promise() is called at least once and | 51 // - promise() is called at least once and |
52 // - this resolver is destructed before it is resolved, rejected, | 52 // - this resolver is destructed before it is resolved, rejected, |
53 // detached, the V8 isolate is terminated or the associated | 53 // detached, the V8 isolate is terminated or the associated |
54 // ExecutionContext is stopped. | 54 // ExecutionContext is stopped. |
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71 } | 71 } |
72 | 72 |
73 void resolve() { resolve(ToV8UndefinedGenerator()); } | 73 void resolve() { resolve(ToV8UndefinedGenerator()); } |
74 void reject() { reject(ToV8UndefinedGenerator()); } | 74 void reject() { reject(ToV8UndefinedGenerator()); } |
75 | 75 |
76 ScriptState* getScriptState() { return m_scriptState.get(); } | 76 ScriptState* getScriptState() { return m_scriptState.get(); } |
77 | 77 |
78 // Note that an empty ScriptPromise will be returned after resolve or | 78 // Note that an empty ScriptPromise will be returned after resolve or |
79 // reject is called. | 79 // reject is called. |
80 ScriptPromise promise() { | 80 ScriptPromise promise() { |
81 #if ENABLE(ASSERT) | 81 #if DCHECK_IS_ON() |
82 m_isPromiseCalled = true; | 82 m_isPromiseCalled = true; |
83 #endif | 83 #endif |
84 return m_resolver.promise(); | 84 return m_resolver.promise(); |
85 } | 85 } |
86 | 86 |
87 ScriptState* getScriptState() const { return m_scriptState.get(); } | 87 ScriptState* getScriptState() const { return m_scriptState.get(); } |
88 | 88 |
89 // SuspendableObject implementation. | 89 // SuspendableObject implementation. |
90 void suspend() override; | 90 void suspend() override; |
91 void resume() override; | 91 void resume() override; |
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154 ResolutionState m_state; | 154 ResolutionState m_state; |
155 const RefPtr<ScriptState> m_scriptState; | 155 const RefPtr<ScriptState> m_scriptState; |
156 TaskRunnerTimer<ScriptPromiseResolver> m_timer; | 156 TaskRunnerTimer<ScriptPromiseResolver> m_timer; |
157 Resolver m_resolver; | 157 Resolver m_resolver; |
158 ScopedPersistent<v8::Value> m_value; | 158 ScopedPersistent<v8::Value> m_value; |
159 | 159 |
160 // To support keepAliveWhilePending(), this object needs to keep itself | 160 // To support keepAliveWhilePending(), this object needs to keep itself |
161 // alive while in that state. | 161 // alive while in that state. |
162 SelfKeepAlive<ScriptPromiseResolver> m_keepAlive; | 162 SelfKeepAlive<ScriptPromiseResolver> m_keepAlive; |
163 | 163 |
164 #if ENABLE(ASSERT) | 164 #if DCHECK_IS_ON() |
165 // True if promise() is called. | 165 // True if promise() is called. |
166 bool m_isPromiseCalled; | 166 bool m_isPromiseCalled = false; |
167 #endif | 167 #endif |
168 }; | 168 }; |
169 | 169 |
170 } // namespace blink | 170 } // namespace blink |
171 | 171 |
172 #endif // ScriptPromiseResolver_h | 172 #endif // ScriptPromiseResolver_h |
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