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 33 namespace JSC { 34 35 class JSStringBuilder : public StringBuilder { 36 public: 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 45 private: 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 58 template<typename StringType1, typename StringType2> 59 inline 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 67 template<typename StringType1, typename StringType2, typename StringType3> 68 inline 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 76 template<typename StringType1, typename StringType2, typename StringType3, typename StringType4> 77 inline 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 85 template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5> 86 inline 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 94 template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6> 95 inline 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