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Side by Side Diff: third_party/WebKit/Source/wtf/text/CString.cpp

Issue 1436153002: Apply clang-format with Chromium-style without column limit. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright (C) 2003, 2006, 2008, 2009, 2010, 2012 Apple Inc. All rights reserv ed. 2 * Copyright (C) 2003, 2006, 2008, 2009, 2010, 2012 Apple Inc. All rights reserv ed.
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 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution. 11 * documentation and/or other materials provided with the distribution.
12 * 12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */ 24 */
25 25
26
27 #include "config.h" 26 #include "config.h"
28 #include "CString.h" 27 #include "CString.h"
29 28
30 #include "wtf/PartitionAlloc.h" 29 #include "wtf/PartitionAlloc.h"
31 #include "wtf/Partitions.h" 30 #include "wtf/Partitions.h"
32 #include <string.h> 31 #include <string.h>
33 32
34 using namespace std; 33 using namespace std;
35 34
36 namespace WTF { 35 namespace WTF {
37 36
38 PassRefPtr<CStringBuffer> CStringBuffer::createUninitialized(size_t length) 37 PassRefPtr<CStringBuffer> CStringBuffer::createUninitialized(size_t length) {
39 { 38 RELEASE_ASSERT(length < (numeric_limits<unsigned>::max() - sizeof(CStringBuffe r)));
40 RELEASE_ASSERT(length < (numeric_limits<unsigned>::max() - sizeof(CStringBuf fer)));
41 39
42 // The +1 is for the terminating NUL character. 40 // The +1 is for the terminating NUL character.
43 size_t size = sizeof(CStringBuffer) + length + 1; 41 size_t size = sizeof(CStringBuffer) + length + 1;
44 CStringBuffer* stringBuffer = static_cast<CStringBuffer*>(Partitions::buffer Malloc(size)); 42 CStringBuffer* stringBuffer = static_cast<CStringBuffer*>(Partitions::bufferMa lloc(size));
45 return adoptRef(new (stringBuffer) CStringBuffer(length)); 43 return adoptRef(new (stringBuffer) CStringBuffer(length));
46 } 44 }
47 45
48 void CStringBuffer::operator delete(void* ptr) 46 void CStringBuffer::operator delete(void* ptr) {
49 { 47 Partitions::bufferFree(ptr);
50 Partitions::bufferFree(ptr);
51 } 48 }
52 49
53 CString::CString(const char* str) 50 CString::CString(const char* str) {
54 { 51 if (!str)
55 if (!str) 52 return;
56 return;
57 53
58 init(str, strlen(str)); 54 init(str, strlen(str));
59 } 55 }
60 56
61 CString::CString(const char* str, size_t length) 57 CString::CString(const char* str, size_t length) {
62 { 58 if (!str) {
63 if (!str) { 59 ASSERT(!length);
64 ASSERT(!length); 60 return;
65 return; 61 }
66 }
67 62
68 init(str, length); 63 init(str, length);
69 } 64 }
70 65
71 void CString::init(const char* str, size_t length) 66 void CString::init(const char* str, size_t length) {
72 { 67 ASSERT(str);
73 ASSERT(str);
74 68
75 m_buffer = CStringBuffer::createUninitialized(length); 69 m_buffer = CStringBuffer::createUninitialized(length);
76 memcpy(m_buffer->mutableData(), str, length); 70 memcpy(m_buffer->mutableData(), str, length);
77 m_buffer->mutableData()[length] = '\0'; 71 m_buffer->mutableData()[length] = '\0';
78 } 72 }
79 73
80 char* CString::mutableData() 74 char* CString::mutableData() {
81 { 75 copyBufferIfNeeded();
82 copyBufferIfNeeded(); 76 if (!m_buffer)
83 if (!m_buffer) 77 return 0;
84 return 0; 78 return m_buffer->mutableData();
85 return m_buffer->mutableData();
86 } 79 }
87 80
88 CString CString::newUninitialized(size_t length, char*& characterBuffer) 81 CString CString::newUninitialized(size_t length, char*& characterBuffer) {
89 { 82 CString result;
90 CString result; 83 result.m_buffer = CStringBuffer::createUninitialized(length);
91 result.m_buffer = CStringBuffer::createUninitialized(length); 84 char* bytes = result.m_buffer->mutableData();
92 char* bytes = result.m_buffer->mutableData(); 85 bytes[length] = '\0';
93 bytes[length] = '\0'; 86 characterBuffer = bytes;
94 characterBuffer = bytes; 87 return result;
95 return result;
96 } 88 }
97 89
98 void CString::copyBufferIfNeeded() 90 void CString::copyBufferIfNeeded() {
99 { 91 if (!m_buffer || m_buffer->hasOneRef())
100 if (!m_buffer || m_buffer->hasOneRef()) 92 return;
101 return;
102 93
103 RefPtr<CStringBuffer> buffer = m_buffer.release(); 94 RefPtr<CStringBuffer> buffer = m_buffer.release();
104 size_t length = buffer->length(); 95 size_t length = buffer->length();
105 m_buffer = CStringBuffer::createUninitialized(length); 96 m_buffer = CStringBuffer::createUninitialized(length);
106 memcpy(m_buffer->mutableData(), buffer->data(), length + 1); 97 memcpy(m_buffer->mutableData(), buffer->data(), length + 1);
107 } 98 }
108 99
109 bool CString::isSafeToSendToAnotherThread() const 100 bool CString::isSafeToSendToAnotherThread() const {
110 { 101 return !m_buffer || m_buffer->hasOneRef();
111 return !m_buffer || m_buffer->hasOneRef();
112 } 102 }
113 103
114 bool operator==(const CString& a, const CString& b) 104 bool operator==(const CString& a, const CString& b) {
115 { 105 if (a.isNull() != b.isNull())
116 if (a.isNull() != b.isNull()) 106 return false;
117 return false; 107 if (a.length() != b.length())
118 if (a.length() != b.length()) 108 return false;
119 return false; 109 return !memcmp(a.data(), b.data(), a.length());
120 return !memcmp(a.data(), b.data(), a.length());
121 } 110 }
122 111
123 bool operator==(const CString& a, const char* b) 112 bool operator==(const CString& a, const char* b) {
124 { 113 if (a.isNull() != !b)
125 if (a.isNull() != !b) 114 return false;
126 return false; 115 if (!b)
127 if (!b) 116 return true;
128 return true; 117 return !strcmp(a.data(), b);
129 return !strcmp(a.data(), b);
130 } 118 }
131 119
132 } // namespace WTF 120 } // namespace WTF
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