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1 $$ This is a pump file for generating file templates. Pump is a python | |
2 $$ script that is part of the Google Test suite of utilities. Description | |
3 $$ can be found here: | |
4 $$ | |
5 $$ http://code.google.com/p/googletest/wiki/PumpManual | |
6 $$ | |
7 | |
8 $var MAX_ARITY = 7 | |
9 | |
10 // Copyright 2014 The Chromium Authors. All rights reserved. | |
11 // Use of this source code is governed by a BSD-style license that can be | |
12 // found in the LICENSE file. | |
13 | |
14 #ifndef MOJO_PUBLIC_BINDINGS_CALLBACK_H_ | |
15 #define MOJO_PUBLIC_BINDINGS_CALLBACK_H_ | |
16 | |
17 #include "mojo/public/bindings/lib/callback_internal.h" | |
18 #include "mojo/public/bindings/lib/shared_ptr.h" | |
19 | |
20 namespace mojo { | |
21 | |
22 template <typename Sig> | |
23 class Callback; | |
24 | |
25 $range ARITY 0..MAX_ARITY | |
26 $for ARITY [[ | |
27 $range ARG 1..ARITY | |
28 | |
29 template <$for ARG , [[typename A$(ARG)]]> | |
30 class Callback<void($for ARG , [[A$(ARG)]])> { | |
31 public: | |
32 struct Runnable { | |
33 virtual ~Runnable() {} | |
34 virtual void Run( | |
35 $for ARG , | |
36 [[typename internal::Callback_ParamTraits<A$(ARG)>::ForwardType a$(ARG)]
]) const = 0; | |
37 }; | |
38 | |
39 Callback() {} | |
40 | |
41 // The Callback assumes ownership of |runnable|. | |
42 explicit Callback(Runnable* runnable) : sink_(runnable) {} | |
43 | |
44 // Any class that is copy-constructable and has a compatible Run method may | |
45 // be adapted to a Callback using this constructor. | |
46 template <typename Sink> | |
47 Callback(const Sink& sink) : sink_(new Adapter<Sink>(sink)) {} | |
48 | |
49 void Run( | |
50 $for ARG , | |
51 [[typename internal::Callback_ParamTraits<A$(ARG)>::ForwardType a$(ARG)]])
const { | |
52 if (sink_.get()) | |
53 sink_->Run( | |
54 $for ARG , | |
55 [[internal::Callback_Forward(a$(ARG))]]); | |
56 } | |
57 | |
58 private: | |
59 template <typename Sink> | |
60 struct Adapter : public Runnable { | |
61 explicit Adapter(const Sink& sink) : sink(sink) {} | |
62 virtual void Run( | |
63 $for ARG , | |
64 [[typename internal::Callback_ParamTraits<A$(ARG)>::ForwardType a$(ARG)]
]) const MOJO_OVERRIDE { | |
65 sink.Run( | |
66 $for ARG , | |
67 [[internal::Callback_Forward(a$(ARG))]]); | |
68 } | |
69 Sink sink; | |
70 }; | |
71 | |
72 internal::SharedPtr<Runnable> sink_; | |
73 }; | |
74 | |
75 ]] $$ for ARITY | |
76 | |
77 } // namespace mojo | |
78 | |
79 #endif // MOJO_PUBLIC_BINDINGS_CALLBACK_H_ | |
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