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| 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 |
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| 87 "Second parameter to externalizeString() must be a boolean.")); | 87 "Second parameter to externalizeString() must be a boolean.")); |
| 88 } | 88 } |
| 89 } | 89 } |
| 90 bool result = false; | 90 bool result = false; |
| 91 Handle<String> string = Utils::OpenHandle(*args[0].As<v8::String>()); | 91 Handle<String> string = Utils::OpenHandle(*args[0].As<v8::String>()); |
| 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 char* data = new char[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 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->IsSymbol()) { |
| 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()); |
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| 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 |
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