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Side by Side Diff: third_party/WebKit/Source/core/streams/ReadableStreamReader.h

Issue 1805843002: [v8 gc] Introduce a base class for all objects that can have pending activity (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: updates Created 4 years, 9 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 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 ReadableStreamReader_h 5 #ifndef ReadableStreamReader_h
6 #define ReadableStreamReader_h 6 #define ReadableStreamReader_h
7 7
8 #include "bindings/core/v8/ActiveScriptWrappable.h"
8 #include "bindings/core/v8/ScriptPromise.h" 9 #include "bindings/core/v8/ScriptPromise.h"
9 #include "bindings/core/v8/ScriptPromiseProperty.h" 10 #include "bindings/core/v8/ScriptPromiseProperty.h"
10 #include "bindings/core/v8/ScriptValue.h" 11 #include "bindings/core/v8/ScriptValue.h"
11 #include "bindings/core/v8/ScriptWrappable.h" 12 #include "bindings/core/v8/ScriptWrappable.h"
12 #include "bindings/core/v8/ToV8.h" 13 #include "bindings/core/v8/ToV8.h"
13 #include "core/CoreExport.h" 14 #include "core/CoreExport.h"
14 #include "core/dom/ActiveDOMObject.h" 15 #include "core/dom/ActiveDOMObject.h"
15 #include "core/streams/ReadableStream.h" 16 #include "core/streams/ReadableStream.h"
16 #include "platform/heap/Handle.h" 17 #include "platform/heap/Handle.h"
17 18
18 namespace blink { 19 namespace blink {
19 20
20 class DOMException; 21 class DOMException;
21 class ExceptionState; 22 class ExceptionState;
22 class ExecutionContext; 23 class ExecutionContext;
23 class ScriptState; 24 class ScriptState;
24 25
25 // ReadableStreamReader corresponds to the same-name class in the Streams spec 26 // ReadableStreamReader corresponds to the same-name class in the Streams spec
26 // https://streams.spec.whatwg.org/. 27 // https://streams.spec.whatwg.org/.
27 class CORE_EXPORT ReadableStreamReader final : public GarbageCollectedFinalized< ReadableStreamReader>, public ScriptWrappable, public ActiveDOMObject { 28 class CORE_EXPORT ReadableStreamReader final : public GarbageCollectedFinalized< ReadableStreamReader>, public ScriptWrappable, public ActiveScriptWrappable, pub lic ActiveDOMObject {
28 DEFINE_WRAPPERTYPEINFO(); 29 DEFINE_WRAPPERTYPEINFO();
29 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ReadableStreamReader); 30 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ReadableStreamReader);
30 public: 31 public:
31 // The stream must not be locked to any ReadableStreamReader when called. 32 // The stream must not be locked to any ReadableStreamReader when called.
32 ReadableStreamReader(ExecutionContext*, ReadableStream*); 33 ReadableStreamReader(ExecutionContext*, ReadableStream*);
33 34
34 ScriptPromise closed(ScriptState*); 35 ScriptPromise closed(ScriptState*);
35 bool isActive() const; 36 bool isActive() const;
36 ScriptPromise cancel(ScriptState*); 37 ScriptPromise cancel(ScriptState*);
37 ScriptPromise cancel(ScriptState*, ScriptValue reason); 38 ScriptPromise cancel(ScriptState*, ScriptValue reason);
38 ScriptPromise read(ScriptState*); 39 ScriptPromise read(ScriptState*);
39 void releaseLock(ExceptionState&); 40 void releaseLock(ExceptionState&);
40 void releaseLock(); 41 void releaseLock();
41 void close(); 42 void close();
42 void error(); 43 void error();
43 44
44 bool hasPendingActivity() const override; 45 bool hasPendingActivity() const final;
45 void stop() override; 46 void stop() override;
46 47
47 DECLARE_TRACE(); 48 DECLARE_TRACE();
48 49
49 private: 50 private:
50 using ClosedPromise = ScriptPromiseProperty<Member<ReadableStreamReader>, To V8UndefinedGenerator, Member<DOMException>>; 51 using ClosedPromise = ScriptPromiseProperty<Member<ReadableStreamReader>, To V8UndefinedGenerator, Member<DOMException>>;
51 52
52 const Member<ReadableStream> m_stream; 53 const Member<ReadableStream> m_stream;
53 Member<ClosedPromise> m_closed; 54 Member<ClosedPromise> m_closed;
54 }; 55 };
55 56
56 } // namespace blink 57 } // namespace blink
57 58
58 #endif // ReadableStreamReader_h 59 #endif // ReadableStreamReader_h
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