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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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