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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef PromiseTracker_h | |
| 6 #define PromiseTracker_h | |
| 7 | |
| 8 #include "bindings/core/v8/V8GlobalValueMap.h" | |
| 9 #include "core/CoreExport.h" | |
| 10 #include "core/InspectorFrontend.h" | |
| 11 #include "core/InspectorTypeBuilder.h" | |
| 12 #include "wtf/HashMap.h" | |
| 13 #include "wtf/Noncopyable.h" | |
| 14 #include "wtf/PassOwnPtr.h" | |
| 15 #include "wtf/RefPtr.h" | |
| 16 #include "wtf/Vector.h" | |
| 17 #include "wtf/WeakPtr.h" | |
| 18 #include <v8.h> | |
| 19 | |
| 20 namespace blink { | |
| 21 | |
| 22 class PromiseTracker final { | |
| 23 WTF_MAKE_NONCOPYABLE(PromiseTracker); | |
| 24 USING_FAST_MALLOC(PromiseTracker); | |
| 25 public: | |
| 26 class CORE_EXPORT Listener { | |
| 27 public: | |
| 28 virtual ~Listener() { } | |
| 29 virtual void didUpdatePromise(InspectorFrontend::Debugger::EventType::En
um, PassRefPtr<TypeBuilder::Debugger::PromiseDetails>) = 0; | |
| 30 }; | |
| 31 | |
| 32 static PassOwnPtr<PromiseTracker> create(Listener* listener, v8::Isolate* is
olate) | |
| 33 { | |
| 34 return adoptPtr(new PromiseTracker(listener, isolate)); | |
| 35 } | |
| 36 | |
| 37 ~PromiseTracker(); | |
| 38 | |
| 39 bool isEnabled() const { return m_isEnabled; } | |
| 40 void setEnabled(bool enabled, bool captureStacks); | |
| 41 void clear(); | |
| 42 void didReceiveV8PromiseEvent(v8::Local<v8::Context>, v8::Local<v8::Object>
promise, v8::Local<v8::Value> parentPromise, int status); | |
| 43 v8::Local<v8::Object> promiseById(int promiseId); | |
| 44 | |
| 45 private: | |
| 46 PromiseTracker(Listener*, v8::Isolate*); | |
| 47 | |
| 48 int circularSequentialId(); | |
| 49 int promiseId(v8::Local<v8::Object> promise, bool* isNewPromise); | |
| 50 | |
| 51 int m_circularSequentialId; | |
| 52 bool m_isEnabled; | |
| 53 bool m_captureStacks; | |
| 54 Listener* m_listener; | |
| 55 | |
| 56 v8::Isolate* m_isolate; | |
| 57 v8::Persistent<v8::NativeWeakMap> m_promiseToId; | |
| 58 | |
| 59 WeakPtrFactory<PromiseTracker> m_weakPtrFactory; | |
| 60 | |
| 61 class PromiseWeakCallbackData; | |
| 62 class IdToPromiseMapTraits : public V8GlobalValueMapTraits<int, v8::Object,
v8::kWeakWithParameter> { | |
| 63 public: | |
| 64 // Weak traits: | |
| 65 typedef PromiseWeakCallbackData WeakCallbackDataType; | |
| 66 typedef v8::GlobalValueMap<int, v8::Object, IdToPromiseMapTraits> MapTyp
e; | |
| 67 | |
| 68 static WeakCallbackDataType* WeakCallbackParameter(MapType*, int key, v8
::Local<v8::Object>& value); | |
| 69 static void OnWeakCallback(const v8::WeakCallbackInfo<WeakCallbackDataTy
pe>&) { } | |
| 70 // This method will be called if the value is removed from the map. | |
| 71 static void DisposeCallbackData(WeakCallbackDataType*); | |
| 72 // This method is called if weakly referenced value is collected. | |
| 73 static void DisposeWeak(const v8::WeakCallbackInfo<WeakCallbackDataType>
&); | |
| 74 | |
| 75 static MapType* MapFromWeakCallbackInfo(const v8::WeakCallbackInfo<WeakC
allbackDataType>&); | |
| 76 static int KeyFromWeakCallbackInfo(const v8::WeakCallbackInfo<WeakCallba
ckDataType>&); | |
| 77 }; | |
| 78 | |
| 79 IdToPromiseMapTraits::MapType m_idToPromise; | |
| 80 }; | |
| 81 | |
| 82 } // namespace blink | |
| 83 | |
| 84 #endif // !defined(PromiseTracker_h) | |
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