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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 
hiddenReferenceName(const char * name)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 
createString(const char * key)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