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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 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 | 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 |
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64 return newString; | 64 return newString; |
65 } | 65 } |
66 | 66 |
67 WebCoreStringResource16* stringResource = new WebCoreStringResource16(string
); | 67 WebCoreStringResource16* stringResource = new WebCoreStringResource16(string
); |
68 v8::Local<v8::String> newString = v8::String::NewExternal(isolate, stringRes
ource); | 68 v8::Local<v8::String> newString = v8::String::NewExternal(isolate, stringRes
ource); |
69 if (newString.IsEmpty()) | 69 if (newString.IsEmpty()) |
70 delete stringResource; | 70 delete stringResource; |
71 return newString; | 71 return newString; |
72 } | 72 } |
73 | 73 |
74 v8::Handle<v8::String> StringCache::v8ExternalStringSlow(StringImpl* stringImpl,
v8::Isolate* isolate) | 74 v8::Handle<v8::String> StringCache::v8ExternalStringSlow(v8::Isolate* isolate, S
tringImpl* stringImpl) |
75 { | 75 { |
76 if (!stringImpl->length()) | 76 if (!stringImpl->length()) |
77 return v8::String::Empty(isolate); | 77 return v8::String::Empty(isolate); |
78 | 78 |
79 StringCacheMapTraits::MapType::PersistentValueReference cachedV8String = m_s
tringCache.GetReference(stringImpl); | 79 StringCacheMapTraits::MapType::PersistentValueReference cachedV8String = m_s
tringCache.GetReference(stringImpl); |
80 if (!cachedV8String.IsEmpty()) { | 80 if (!cachedV8String.IsEmpty()) { |
81 m_lastStringImpl = stringImpl; | 81 m_lastStringImpl = stringImpl; |
82 m_lastV8String = cachedV8String; | 82 m_lastV8String = cachedV8String; |
83 return m_lastV8String.NewLocal(isolate); | 83 return m_lastV8String.NewLocal(isolate); |
84 } | 84 } |
85 | 85 |
86 return createStringAndInsertIntoCache(stringImpl, isolate); | 86 return createStringAndInsertIntoCache(isolate, stringImpl); |
87 } | 87 } |
88 | 88 |
89 void StringCache::setReturnValueFromStringSlow(v8::ReturnValue<v8::Value> return
Value, StringImpl* stringImpl) | 89 void StringCache::setReturnValueFromStringSlow(v8::ReturnValue<v8::Value> return
Value, StringImpl* stringImpl) |
90 { | 90 { |
91 if (!stringImpl->length()) { | 91 if (!stringImpl->length()) { |
92 returnValue.SetEmptyString(); | 92 returnValue.SetEmptyString(); |
93 return; | 93 return; |
94 } | 94 } |
95 | 95 |
96 StringCacheMapTraits::MapType::PersistentValueReference cachedV8String = m_s
tringCache.GetReference(stringImpl); | 96 StringCacheMapTraits::MapType::PersistentValueReference cachedV8String = m_s
tringCache.GetReference(stringImpl); |
97 if (!cachedV8String.IsEmpty()) { | 97 if (!cachedV8String.IsEmpty()) { |
98 m_lastStringImpl = stringImpl; | 98 m_lastStringImpl = stringImpl; |
99 m_lastV8String = cachedV8String; | 99 m_lastV8String = cachedV8String; |
100 m_lastV8String.SetReturnValue(returnValue); | 100 m_lastV8String.SetReturnValue(returnValue); |
101 return; | 101 return; |
102 } | 102 } |
103 | 103 |
104 returnValue.Set(createStringAndInsertIntoCache(stringImpl, returnValue.GetIs
olate())); | 104 returnValue.Set(createStringAndInsertIntoCache(returnValue.GetIsolate(), str
ingImpl)); |
105 } | 105 } |
106 | 106 |
107 v8::Local<v8::String> StringCache::createStringAndInsertIntoCache(StringImpl* st
ringImpl, v8::Isolate* isolate) | 107 v8::Local<v8::String> StringCache::createStringAndInsertIntoCache(v8::Isolate* i
solate, StringImpl* stringImpl) |
108 { | 108 { |
109 ASSERT(!m_stringCache.Contains(stringImpl)); | 109 ASSERT(!m_stringCache.Contains(stringImpl)); |
110 ASSERT(stringImpl->length()); | 110 ASSERT(stringImpl->length()); |
111 | 111 |
112 v8::Local<v8::String> newString = makeExternalString(String(stringImpl), iso
late); | 112 v8::Local<v8::String> newString = makeExternalString(String(stringImpl), iso
late); |
113 if (newString.IsEmpty()) | 113 if (newString.IsEmpty()) |
114 return newString; | 114 return newString; |
115 | 115 |
116 v8::UniquePersistent<v8::String> wrapper(isolate, newString); | 116 v8::UniquePersistent<v8::String> wrapper(isolate, newString); |
117 | 117 |
118 stringImpl->ref(); | 118 stringImpl->ref(); |
119 wrapper.MarkIndependent(); | 119 wrapper.MarkIndependent(); |
120 m_stringCache.Set(stringImpl, wrapper.Pass(), &m_lastV8String); | 120 m_stringCache.Set(stringImpl, wrapper.Pass(), &m_lastV8String); |
121 m_lastStringImpl = stringImpl; | 121 m_lastStringImpl = stringImpl; |
122 | 122 |
123 return newString; | 123 return newString; |
124 } | 124 } |
125 | 125 |
126 void StringCache::InvalidateLastString() | 126 void StringCache::InvalidateLastString() |
127 { | 127 { |
128 m_lastStringImpl = nullptr; | 128 m_lastStringImpl = nullptr; |
129 m_lastV8String.Reset(); | 129 m_lastV8String.Reset(); |
130 } | 130 } |
131 | 131 |
132 } // namespace blink | 132 } // namespace blink |
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