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      1 /*
      2  * Copyright (C) 2009 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 #include "V8HiddenPropertyName.h"
     33 
     34 #include <string.h>
     35 #include <wtf/Vector.h>
     36 
     37 namespace WebCore {
     38 
     39 #define V8_AS_STRING(x) V8_AS_STRING_IMPL(x)
     40 #define V8_AS_STRING_IMPL(x) #x
     41 
     42 #define V8_DEFINE_PROPERTY(name) \
     43 v8::Handle<v8::String> V8HiddenPropertyName::name() \
     44 { \
     45     static v8::Persistent<v8::String>* string = createString("WebCore::HiddenProperty::" V8_AS_STRING(name)); \
     46     return *string; \
     47 }
     48 
     49 V8_HIDDEN_PROPERTIES(V8_DEFINE_PROPERTY);
     50 
     51 static const char hiddenReferenceNamePrefix[] = "WebCore::HiddenReference::";
     52 
     53 v8::Handle<v8::String> V8HiddenPropertyName::hiddenReferenceName(const char* name)
     54 {
     55     Vector<char, 64> prefixedName;
     56     prefixedName.append(hiddenReferenceNamePrefix, sizeof(hiddenReferenceNamePrefix) - 1);
     57     prefixedName.append(name, strlen(name));
     58     return v8::String::NewSymbol(prefixedName.data(), static_cast<int>(prefixedName.size()));
     59 }
     60 
     61 v8::Persistent<v8::String>* V8HiddenPropertyName::createString(const char* key)
     62 {
     63     v8::HandleScope scope;
     64     return new v8::Persistent<v8::String>(v8::Persistent<v8::String>::New(v8::String::NewSymbol(key)));
     65 }
     66 
     67 }  // namespace WebCore
     68