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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef WebScopedMicrotaskSuppression_h | 31 #ifndef WebScopedMicrotaskSuppression_h |
32 #define WebScopedMicrotaskSuppression_h | 32 #define WebScopedMicrotaskSuppression_h |
33 | 33 |
34 #include "../platform/WebPrivateOwnPtr.h" | 34 #include "../platform/WebPrivateOwnPtr.h" |
35 | 35 |
36 namespace WebKit { | 36 namespace blink { |
37 | 37 |
38 // This class wraps V8RecursionScope::BypassMicrotaskCheckpoint. Please | 38 // This class wraps V8RecursionScope::BypassMicrotaskCheckpoint. Please |
39 // see V8RecursionScope.h for full usage. Short story: Embedder calls into | 39 // see V8RecursionScope.h for full usage. Short story: Embedder calls into |
40 // script contexts which also host page script must do one of two things: | 40 // script contexts which also host page script must do one of two things: |
41 // | 41 // |
42 // 1. If the call may cause any page/author script to run, it must be | 42 // 1. If the call may cause any page/author script to run, it must be |
43 // captured for pre/post work (e.g. inspector instrumentation/microtask | 43 // captured for pre/post work (e.g. inspector instrumentation/microtask |
44 // delivery) and thus be invoked through WebFrame (e.g. executeScript*, | 44 // delivery) and thus be invoked through WebFrame (e.g. executeScript*, |
45 // callFunction*). | 45 // callFunction*). |
46 // 2. If the call will not cause any page/author script to run, the call | 46 // 2. If the call will not cause any page/author script to run, the call |
47 // should be made directly via the v8 context, but the callsite must be | 47 // should be made directly via the v8 context, but the callsite must be |
48 // accompanied by a stack allocated WebScopedMicrotaskSuppression, e.g.: | 48 // accompanied by a stack allocated WebScopedMicrotaskSuppression, e.g.: |
49 // | 49 // |
50 // ... | 50 // ... |
51 // { | 51 // { |
52 // WebKit::WebScopedMicrotaskSuppression suppression; | 52 // blink::WebScopedMicrotaskSuppression suppression; |
53 // func->Call(global, argv, args); | 53 // func->Call(global, argv, args); |
54 // } | 54 // } |
55 // ... | 55 // ... |
56 // | 56 // |
57 class WebScopedMicrotaskSuppression { | 57 class WebScopedMicrotaskSuppression { |
58 public: | 58 public: |
59 WebScopedMicrotaskSuppression() { initialize(); } | 59 WebScopedMicrotaskSuppression() { initialize(); } |
60 ~WebScopedMicrotaskSuppression() { reset(); } | 60 ~WebScopedMicrotaskSuppression() { reset(); } |
61 | 61 |
62 private: | 62 private: |
63 BLINK_EXPORT void initialize(); | 63 BLINK_EXPORT void initialize(); |
64 BLINK_EXPORT void reset(); | 64 BLINK_EXPORT void reset(); |
65 | 65 |
66 #ifndef NDEBUG | 66 #ifndef NDEBUG |
67 class Impl; | 67 class Impl; |
68 WebPrivateOwnPtr<Impl> m_impl; | 68 WebPrivateOwnPtr<Impl> m_impl; |
69 #endif | 69 #endif |
70 }; | 70 }; |
71 | 71 |
72 } // WebKit | 72 } // WebKit |
73 | 73 |
74 #endif | 74 #endif |
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