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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 |
| (...skipping 15 matching lines...) Expand all Loading... |
| 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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