1/*
2 * Copyright (C) 2009 Apple 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
6 * are met:
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
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
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
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef JSStringBuilder_h
27#define JSStringBuilder_h
28
29#include "ExceptionHelpers.h"
30#include "JSString.h"
31#include "StringBuilder.h"
32
33namespace JSC {
34
35class JSStringBuilder : public StringBuilder {
36public:
37    JSValue build(ExecState* exec)
38    {
39        buffer.shrinkToFit();
40        if (!buffer.data())
41            return throwOutOfMemoryError(exec);
42        return jsString(exec, UString::adopt(buffer));
43    }
44
45private:
46    // Make attempts to call this compile error - if you only wanted a UString,
47    // Why didn't you just use a StringBuilder?!  (This may change, maybe at some
48    // point in the future we'll need to start building a string not knowing whether
49    // we'll want a UString or a JSValue - but until we have this requirement,
50    // block this).
51    UString build()
52    {
53        ASSERT_NOT_REACHED();
54        return StringBuilder::build();
55    }
56};
57
58template<typename StringType1, typename StringType2>
59inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2)
60{
61    PassRefPtr<UStringImpl> result = tryMakeString(string1, string2);
62    if (!result)
63        return throwOutOfMemoryError(exec);
64    return jsNontrivialString(exec, result);
65}
66
67template<typename StringType1, typename StringType2, typename StringType3>
68inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3)
69{
70    PassRefPtr<UStringImpl> result = tryMakeString(string1, string2, string3);
71    if (!result)
72        return throwOutOfMemoryError(exec);
73    return jsNontrivialString(exec, result);
74}
75
76template<typename StringType1, typename StringType2, typename StringType3, typename StringType4>
77inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4)
78{
79    PassRefPtr<UStringImpl> result = tryMakeString(string1, string2, string3, string4);
80    if (!result)
81        return throwOutOfMemoryError(exec);
82    return jsNontrivialString(exec, result);
83}
84
85template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5>
86inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5)
87{
88    PassRefPtr<UStringImpl> result = tryMakeString(string1, string2, string3, string4, string5);
89    if (!result)
90        return throwOutOfMemoryError(exec);
91    return jsNontrivialString(exec, result);
92}
93
94template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6>
95inline JSValue jsMakeNontrivialString(ExecState* exec, StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6)
96{
97    PassRefPtr<UStringImpl> result = tryMakeString(string1, string2, string3, string4, string5, string6);
98    if (!result)
99        return throwOutOfMemoryError(exec);
100    return jsNontrivialString(exec, result);
101}
102
103}
104
105#endif
106