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1 /*
2  * Copyright (C) 2013 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 "bindings/core/v8/ScriptString.h"
33 
34 #include "bindings/core/v8/V8Binding.h"
35 
36 namespace blink {
37 
ScriptString()38 ScriptString::ScriptString()
39     : m_isolate(0)
40 {
41 }
42 
ScriptString(v8::Isolate * isolate,v8::Handle<v8::String> string)43 ScriptString::ScriptString(v8::Isolate* isolate, v8::Handle<v8::String> string)
44     : m_isolate(isolate)
45     , m_string(SharedPersistent<v8::String>::create(string, m_isolate))
46 {
47 }
48 
operator =(const ScriptString & string)49 ScriptString& ScriptString::operator=(const ScriptString& string)
50 {
51     if (this != &string) {
52         m_isolate = string.m_isolate;
53         m_string = string.m_string;
54     }
55     return *this;
56 }
57 
v8Value()58 v8::Handle<v8::String> ScriptString::v8Value()
59 {
60     if (isEmpty())
61         return v8::Handle<v8::String>();
62     return m_string->newLocal(isolate());
63 }
64 
concatenateWith(const String & string)65 ScriptString ScriptString::concatenateWith(const String& string)
66 {
67     v8::Isolate* nonNullIsolate = isolate();
68     v8::HandleScope handleScope(nonNullIsolate);
69     v8::Handle<v8::String> targetString = v8String(nonNullIsolate, string);
70     if (isEmpty())
71         return ScriptString(nonNullIsolate, targetString);
72     return ScriptString(nonNullIsolate, v8::String::Concat(v8Value(), targetString));
73 }
74 
flattenToString()75 String ScriptString::flattenToString()
76 {
77     if (isEmpty())
78         return String();
79     v8::HandleScope handleScope(isolate());
80     return v8StringToWebCoreString<String>(v8Value(), Externalize);
81 }
82 
83 } // namespace blink
84