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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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