1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 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. 29 */ 30 31 #include "config.h" 32 33 #include <wtf/Assertions.h> 34 #include <wtf/CrossThreadRefCounted.h> 35 #include <wtf/OwnPtr.h> 36 #include <wtf/PassRefPtr.h> 37 #include <wtf/RefCounted.h> 38 #include <wtf/RefPtr.h> 39 #include <wtf/Vector.h> 40 41 namespace WTF { 42 43 #ifndef NDEBUG 44 struct StructWithIntAndTwoBools { int a; bool b; bool c; }; 45 static const size_t refCountedExtraDebugSize = sizeof(StructWithIntAndTwoBools) - sizeof(int); 46 #else 47 static const size_t refCountedExtraDebugSize = 0; 48 #endif 49 50 COMPILE_ASSERT(sizeof(OwnPtr<int>) == sizeof(int*), OwnPtr_should_stay_small); 51 COMPILE_ASSERT(sizeof(PassRefPtr<RefCounted<int> >) == sizeof(int*), PassRefPtr_should_stay_small); 52 COMPILE_ASSERT(sizeof(RefCounted<int>) == sizeof(int) + refCountedExtraDebugSize, RefCounted_should_stay_small); 53 COMPILE_ASSERT(sizeof(RefCountedCustomAllocated<int>) == sizeof(int) + refCountedExtraDebugSize, RefCountedCustomAllocated_should_stay_small); 54 COMPILE_ASSERT(sizeof(RefPtr<RefCounted<int> >) == sizeof(int*), RefPtr_should_stay_small); 55 COMPILE_ASSERT(sizeof(Vector<int>) == 3 * sizeof(int*), Vector_should_stay_small); 56 57 } 58
