Index: third_party/WebKit/Source/wtf/LeakAnnotations.h |
diff --git a/third_party/WebKit/Source/wtf/LeakAnnotations.h b/third_party/WebKit/Source/wtf/LeakAnnotations.h |
index d218794d9dcf0d063fb94b196a448ea809d0f91f..f43de27549d090584bb6b6895d93a3246cff580c 100644 |
--- a/third_party/WebKit/Source/wtf/LeakAnnotations.h |
+++ b/third_party/WebKit/Source/wtf/LeakAnnotations.h |
@@ -1,142 +1,9 @@ |
-/* |
- * Copyright (C) 2013 Google Inc. All rights reserved. |
- * Copyright (C) 2013 Samsung Electronics. All rights reserved. |
- * |
- * Redistribution and use in source and binary forms, with or without |
- * modification, are permitted provided that the following conditions are |
- * met: |
- * |
- * * Redistributions of source code must retain the above copyright |
- * notice, this list of conditions and the following disclaimer. |
- * * Redistributions in binary form must reproduce the above |
- * copyright notice, this list of conditions and the following disclaimer |
- * in the documentation and/or other materials provided with the |
- * distribution. |
- * * Neither the name of Google Inc. nor the names of its |
- * contributors may be used to endorse or promote products derived from |
- * this software without specific prior written permission. |
- * |
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
- */ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
-#ifndef WTF_LeakAnnotations_h |
-#define WTF_LeakAnnotations_h |
+#include "platform/wtf/LeakAnnotations.h" |
-// This file defines macros for working with LeakSanitizer, allowing memory |
-// and allocations to be registered as exempted from LSan consideration. |
- |
-#include "wtf/Noncopyable.h" |
-#if defined(LEAK_SANITIZER) |
-#include "wtf/AddressSanitizer.h" |
-#include "wtf/TypeTraits.h" |
-#endif |
- |
-namespace WTF { |
- |
-#if defined(LEAK_SANITIZER) |
-class LeakSanitizerDisabler { |
- WTF_MAKE_NONCOPYABLE(LeakSanitizerDisabler); |
- |
- public: |
- LeakSanitizerDisabler() { __lsan_disable(); } |
- |
- ~LeakSanitizerDisabler() { __lsan_enable(); } |
-}; |
- |
-// WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE: all allocations made in the |
-// current scope will be exempted from LSan consideration. Only to be |
-// used internal to wtf/, Blink should use LEAK_SANITIZER_DISABLED_SCOPE |
-// elsewhere. |
-// |
-// TODO(sof): once layering rules allow wtf/ to make use of the Oilpan |
-// infrastructure, remove this macro. |
-#define WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE \ |
- WTF::LeakSanitizerDisabler leakSanitizerDisabler; \ |
- static_cast<void>(0) |
- |
-// LEAK_SANITIZER_IGNORE_OBJECT(X): the heap object referenced by pointer X |
-// will be ignored by LSan. |
-// |
-// "Ignorance" means that LSan's reachability traversal is stopped short |
-// upon encountering an ignored memory chunk. Consequently, LSan will not |
-// scan an ignored memory chunk for live, reachable pointers. However, should |
-// those embedded pointers be reachable by some other path, they will be |
-// reported as leaking. |
-#define LEAK_SANITIZER_IGNORE_OBJECT(X) __lsan_ignore_object(X) |
- |
-// If the object pointed to by the static local is on the Oilpan heap, a strong |
-// Persistent<> is created to keep the pointed-to heap object alive. This makes |
-// both the Persistent<> and the heap object _reachable_ by LeakSanitizer's leak |
-// detection pass. We do not want these intentional leaks to be reported by |
-// LSan, hence the static local is registered with Oilpan |
-// (see RegisterStaticLocalReference<> below.) |
-// |
-// Upon Blink shutdown, all the registered statics are released and a final |
-// round of GCs are performed to sweep out their now-unreachable object graphs. |
-// The end result being a tidied heap that the LeakSanitizer can then scan to |
-// report real leaks. |
-// |
-// The CanRegisterStaticLocalReference<> and RegisterStaticLocalReference<> |
-// templates arrange for this -- for a class type T, a registerStatic() |
-// implementation is provided if "T* T::registerAsStaticReference(T*)" is a |
-// method on T (inherited or otherwise.) |
-// |
-// An empty, trivial registerStatic() method is provided for all other class |
-// types T. |
-template <typename T> |
-class CanRegisterStaticLocalReference { |
- typedef char YesType; |
- typedef struct NoType { char padding[8]; } NoType; |
- |
- // Check if class T has public method "T* registerAsStaticReference()". |
- template <typename V> |
- static YesType checkHasRegisterAsStaticReferenceMethod( |
- V* p, |
- typename std::enable_if<IsSubclass< |
- V, |
- typename std::remove_pointer<decltype( |
- p->registerAsStaticReference())>::type>::value>::type* = 0); |
- template <typename V> |
- static NoType checkHasRegisterAsStaticReferenceMethod(...); |
- |
- public: |
- static const bool value = |
- sizeof(YesType) + sizeof(T) == |
- sizeof(checkHasRegisterAsStaticReferenceMethod<T>(nullptr)) + sizeof(T); |
-}; |
- |
-template <typename T, bool = CanRegisterStaticLocalReference<T>::value> |
-class RegisterStaticLocalReference { |
- public: |
- static T* registerStatic(T* ptr) { return ptr; } |
-}; |
- |
-template <typename T> |
-class RegisterStaticLocalReference<T, true> { |
- public: |
- static T* registerStatic(T* ptr) { |
- return static_cast<T*>(ptr->registerAsStaticReference()); |
- } |
-}; |
- |
-#define LEAK_SANITIZER_REGISTER_STATIC_LOCAL(Type, Object) \ |
- WTF::RegisterStaticLocalReference<Type>::registerStatic(Object) |
-#else |
-#define WTF_INTERNAL_LEAK_SANITIZER_DISABLED_SCOPE |
-#define LEAK_SANITIZER_IGNORE_OBJECT(X) ((void)0) |
-#define LEAK_SANITIZER_REGISTER_STATIC_LOCAL(Type, Object) Object |
-#endif // defined(LEAK_SANITIZER) |
- |
-} // namespace WTF |
- |
-#endif // WTF_LeakAnnotations_h |
+// The contents of this header was moved to platform/wtf as part of |
+// WTF migration project. See the following post for details: |
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gYCAAJ |