OLD | NEW |
1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 81 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
92 if (string->IsExternalString()) { | 92 if (string->IsExternalString()) { |
93 return v8::ThrowException(v8::String::New( | 93 return v8::ThrowException(v8::String::New( |
94 "externalizeString() can't externalize twice.")); | 94 "externalizeString() can't externalize twice.")); |
95 } | 95 } |
96 if (string->IsOneByteRepresentation() && !force_two_byte) { | 96 if (string->IsOneByteRepresentation() && !force_two_byte) { |
97 uint8_t* data = new uint8_t[string->length()]; | 97 uint8_t* data = new uint8_t[string->length()]; |
98 String::WriteToFlat(*string, data, 0, string->length()); | 98 String::WriteToFlat(*string, data, 0, string->length()); |
99 SimpleAsciiStringResource* resource = new SimpleAsciiStringResource( | 99 SimpleAsciiStringResource* resource = new SimpleAsciiStringResource( |
100 reinterpret_cast<char*>(data), string->length()); | 100 reinterpret_cast<char*>(data), string->length()); |
101 result = string->MakeExternal(resource); | 101 result = string->MakeExternal(resource); |
102 if (result && !string->IsSymbol()) { | 102 if (result && !string->IsInternalizedString()) { |
103 HEAP->external_string_table()->AddString(*string); | 103 HEAP->external_string_table()->AddString(*string); |
104 } | 104 } |
105 if (!result) delete resource; | 105 if (!result) delete resource; |
106 } else { | 106 } else { |
107 uc16* data = new uc16[string->length()]; | 107 uc16* data = new uc16[string->length()]; |
108 String::WriteToFlat(*string, data, 0, string->length()); | 108 String::WriteToFlat(*string, data, 0, string->length()); |
109 SimpleTwoByteStringResource* resource = new SimpleTwoByteStringResource( | 109 SimpleTwoByteStringResource* resource = new SimpleTwoByteStringResource( |
110 data, string->length()); | 110 data, string->length()); |
111 result = string->MakeExternal(resource); | 111 result = string->MakeExternal(resource); |
112 if (result && !string->IsSymbol()) { | 112 if (result && !string->IsInternalizedString()) { |
113 HEAP->external_string_table()->AddString(*string); | 113 HEAP->external_string_table()->AddString(*string); |
114 } | 114 } |
115 if (!result) delete resource; | 115 if (!result) delete resource; |
116 } | 116 } |
117 if (!result) { | 117 if (!result) { |
118 return v8::ThrowException(v8::String::New("externalizeString() failed.")); | 118 return v8::ThrowException(v8::String::New("externalizeString() failed.")); |
119 } | 119 } |
120 return v8::Undefined(); | 120 return v8::Undefined(); |
121 } | 121 } |
122 | 122 |
123 | 123 |
124 v8::Handle<v8::Value> ExternalizeStringExtension::IsAscii( | 124 v8::Handle<v8::Value> ExternalizeStringExtension::IsAscii( |
125 const v8::Arguments& args) { | 125 const v8::Arguments& args) { |
126 if (args.Length() != 1 || !args[0]->IsString()) { | 126 if (args.Length() != 1 || !args[0]->IsString()) { |
127 return v8::ThrowException(v8::String::New( | 127 return v8::ThrowException(v8::String::New( |
128 "isAsciiString() requires a single string argument.")); | 128 "isAsciiString() requires a single string argument.")); |
129 } | 129 } |
130 return | 130 return |
131 Utils::OpenHandle(*args[0].As<v8::String>())->IsOneByteRepresentation() ? | 131 Utils::OpenHandle(*args[0].As<v8::String>())->IsOneByteRepresentation() ? |
132 v8::True() : v8::False(); | 132 v8::True() : v8::False(); |
133 } | 133 } |
134 | 134 |
135 | 135 |
136 void ExternalizeStringExtension::Register() { | 136 void ExternalizeStringExtension::Register() { |
137 static ExternalizeStringExtension externalize_extension; | 137 static ExternalizeStringExtension externalize_extension; |
138 static v8::DeclareExtension declaration(&externalize_extension); | 138 static v8::DeclareExtension declaration(&externalize_extension); |
139 } | 139 } |
140 | 140 |
141 } } // namespace v8::internal | 141 } } // namespace v8::internal |
OLD | NEW |