2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
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11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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26 #ifndef JSStringBuilder_h
27 #define JSStringBuilder_h
29 #include "ExceptionHelpers.h"
31 #include "UStringConcatenate.h"
36 class JSStringBuilder {
44 void append(const UChar u)
49 m_okay &= buffer8.tryAppend(&c, 1);
54 m_okay &= buffer16.tryAppend(&u, 1);
57 void append(const char* str)
59 append(str, strlen(str));
62 void append(const char* str, size_t len)
65 m_okay &= buffer8.tryAppend(reinterpret_cast<const LChar*>(str), len);
68 m_okay &= buffer8.tryReserveCapacity(buffer16.size() + len);
69 for (size_t i = 0; i < len; i++) {
70 UChar u = static_cast<unsigned char>(str[i]);
71 m_okay &= buffer16.tryAppend(&u, 1);
75 void append(const UChar* str, size_t len)
78 upConvert(); // FIXME: We could check character by character its size.
79 m_okay &= buffer16.tryAppend(str, len);
82 void append(const UString& str)
84 unsigned length = str.length();
91 m_okay &= buffer8.tryAppend(str.characters8(), length);
96 m_okay &= buffer16.tryAppend(str.characters(), length);
102 size_t len = buffer8.size();
104 for (size_t i = 0; i < len; i++)
105 buffer16.append(buffer8[i]);
111 JSValue build(ExecState* exec)
114 return throwOutOfMemoryError(exec);
116 buffer8.shrinkToFit();
118 return throwOutOfMemoryError(exec);
119 return jsString(exec, UString::adopt(buffer8));
121 buffer16.shrinkToFit();
122 if (!buffer16.data())
123 return throwOutOfMemoryError(exec);
124 return jsString(exec, UString::adopt(buffer16));
128 Vector<LChar, 64> buffer8;
129 Vector<UChar, 64> buffer16;
134 template<typename StringType1, typename StringType2>
135 inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2)
137 PassRefPtr<StringImpl> result = WTF::tryMakeString(string1, string2);
139 return throwOutOfMemoryError(exec);
140 return jsNontrivialString(exec, result);
143 template<typename StringType1, typename StringType2, typename StringType3>
144 inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3)
146 PassRefPtr<StringImpl> result = WTF::tryMakeString(string1, string2, string3);
148 return throwOutOfMemoryError(exec);
149 return jsNontrivialString(exec, result);
152 template<typename StringType1, typename StringType2, typename StringType3, typename StringType4>
153 inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4)
155 PassRefPtr<StringImpl> result = WTF::tryMakeString(string1, string2, string3, string4);
157 return throwOutOfMemoryError(exec);
158 return jsNontrivialString(exec, result);
161 template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5>
162 inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5)
164 PassRefPtr<StringImpl> result = WTF::tryMakeString(string1, string2, string3, string4, string5);
166 return throwOutOfMemoryError(exec);
167 return jsNontrivialString(exec, result);
170 template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6>
171 inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6)
173 PassRefPtr<StringImpl> result = WTF::tryMakeString(string1, string2, string3, string4, string5, string6);
175 return throwOutOfMemoryError(exec);
176 return jsNontrivialString(exec, result);