-/*
- * Copyright (C) 2010 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef StringConcatenate_h
-#define StringConcatenate_h
-
-#ifndef WTFString_h
-#include "AtomicString.h"
-#endif
-
-namespace WTF {
-
-template<typename StringType>
-class StringTypeAdapter {
-};
-
-template<>
-class StringTypeAdapter<char> {
-public:
- StringTypeAdapter<char>(char buffer)
- : m_buffer(buffer)
- {
- }
-
- unsigned length() { return 1; }
- void writeTo(UChar* destination) { *destination = m_buffer; }
-
-private:
- unsigned char m_buffer;
-};
-
-template<>
-class StringTypeAdapter<UChar> {
-public:
- StringTypeAdapter<UChar>(UChar buffer)
- : m_buffer(buffer)
- {
- }
-
- unsigned length() { return 1; }
- void writeTo(UChar* destination) { *destination = m_buffer; }
-
-private:
- UChar m_buffer;
-};
-
-template<>
-class StringTypeAdapter<char*> {
-public:
- StringTypeAdapter<char*>(char* buffer)
- : m_buffer(buffer)
- , m_length(strlen(buffer))
- {
- }
-
- unsigned length() { return m_length; }
-
- void writeTo(UChar* destination)
- {
- for (unsigned i = 0; i < m_length; ++i) {
- unsigned char c = m_buffer[i];
- destination[i] = c;
- }
- }
-
-private:
- const char* m_buffer;
- unsigned m_length;
-};
-
-template<>
-class StringTypeAdapter<const UChar*> {
-public:
- StringTypeAdapter<const UChar*>(const UChar* buffer)
- : m_buffer(buffer)
- {
- size_t len = 0;
- while (m_buffer[len] != UChar(0))
- len++;
-
- if (len > std::numeric_limits<unsigned>::max())
- CRASH();
-
- m_length = len;
- }
-
- unsigned length() { return m_length; }
-
- void writeTo(UChar* destination)
- {
- memcpy(destination, m_buffer, static_cast<size_t>(m_length) * sizeof(UChar));
- }
-
-private:
- const UChar* m_buffer;
- unsigned m_length;
-};
-
-template<>
-class StringTypeAdapter<const char*> {
-public:
- StringTypeAdapter<const char*>(const char* buffer)
- : m_buffer(buffer)
- , m_length(strlen(buffer))
- {
- }
-
- unsigned length() { return m_length; }
-
- void writeTo(UChar* destination)
- {
- for (unsigned i = 0; i < m_length; ++i) {
- unsigned char c = m_buffer[i];
- destination[i] = c;
- }
- }
-
-private:
- const char* m_buffer;
- unsigned m_length;
-};
-
-template<>
-class StringTypeAdapter<Vector<char> > {
-public:
- StringTypeAdapter<Vector<char> >(const Vector<char>& buffer)
- : m_buffer(buffer)
- {
- }
-
- size_t length() { return m_buffer.size(); }
-
- void writeTo(UChar* destination)
- {
- for (size_t i = 0; i < m_buffer.size(); ++i) {
- unsigned char c = m_buffer[i];
- destination[i] = c;
- }
- }
-
-private:
- const Vector<char>& m_buffer;
-};
-
-template<>
-class StringTypeAdapter<String> {
-public:
- StringTypeAdapter<String>(const String& string)
- : m_buffer(string)
- {
- }
-
- unsigned length() { return m_buffer.length(); }
-
- void writeTo(UChar* destination)
- {
- const UChar* data = m_buffer.characters();
- unsigned length = m_buffer.length();
- for (unsigned i = 0; i < length; ++i)
- destination[i] = data[i];
- }
-
-private:
- const String& m_buffer;
-};
-
-template<>
-class StringTypeAdapter<AtomicString> {
-public:
- StringTypeAdapter<AtomicString>(const AtomicString& string)
- : m_adapter(string.string())
- {
- }
-
- unsigned length() { return m_adapter.length(); }
- void writeTo(UChar* destination) { m_adapter.writeTo(destination); }
-
-private:
- StringTypeAdapter<String> m_adapter;
-};
-
-inline void sumWithOverflow(unsigned& total, unsigned addend, bool& overflow)
-{
- unsigned oldTotal = total;
- total = oldTotal + addend;
- if (total < oldTotal)
- overflow = true;
-}
-
-template<typename StringType1, typename StringType2>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
-
- UChar* buffer = 0;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
- StringTypeAdapter<StringType4> adapter4(string4);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- sumWithOverflow(length, adapter4.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
- result += adapter3.length();
- adapter4.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
- StringTypeAdapter<StringType4> adapter4(string4);
- StringTypeAdapter<StringType5> adapter5(string5);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- sumWithOverflow(length, adapter4.length(), overflow);
- sumWithOverflow(length, adapter5.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
- result += adapter3.length();
- adapter4.writeTo(result);
- result += adapter4.length();
- adapter5.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
- StringTypeAdapter<StringType4> adapter4(string4);
- StringTypeAdapter<StringType5> adapter5(string5);
- StringTypeAdapter<StringType6> adapter6(string6);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- sumWithOverflow(length, adapter4.length(), overflow);
- sumWithOverflow(length, adapter5.length(), overflow);
- sumWithOverflow(length, adapter6.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
- result += adapter3.length();
- adapter4.writeTo(result);
- result += adapter4.length();
- adapter5.writeTo(result);
- result += adapter5.length();
- adapter6.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6, typename StringType7>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6, StringType7 string7)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
- StringTypeAdapter<StringType4> adapter4(string4);
- StringTypeAdapter<StringType5> adapter5(string5);
- StringTypeAdapter<StringType6> adapter6(string6);
- StringTypeAdapter<StringType7> adapter7(string7);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- sumWithOverflow(length, adapter4.length(), overflow);
- sumWithOverflow(length, adapter5.length(), overflow);
- sumWithOverflow(length, adapter6.length(), overflow);
- sumWithOverflow(length, adapter7.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
- result += adapter3.length();
- adapter4.writeTo(result);
- result += adapter4.length();
- adapter5.writeTo(result);
- result += adapter5.length();
- adapter6.writeTo(result);
- result += adapter6.length();
- adapter7.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6, typename StringType7, typename StringType8>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6, StringType7 string7, StringType8 string8)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
- StringTypeAdapter<StringType4> adapter4(string4);
- StringTypeAdapter<StringType5> adapter5(string5);
- StringTypeAdapter<StringType6> adapter6(string6);
- StringTypeAdapter<StringType7> adapter7(string7);
- StringTypeAdapter<StringType8> adapter8(string8);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- sumWithOverflow(length, adapter4.length(), overflow);
- sumWithOverflow(length, adapter5.length(), overflow);
- sumWithOverflow(length, adapter6.length(), overflow);
- sumWithOverflow(length, adapter7.length(), overflow);
- sumWithOverflow(length, adapter8.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
- result += adapter3.length();
- adapter4.writeTo(result);
- result += adapter4.length();
- adapter5.writeTo(result);
- result += adapter5.length();
- adapter6.writeTo(result);
- result += adapter6.length();
- adapter7.writeTo(result);
- result += adapter7.length();
- adapter8.writeTo(result);
-
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6, typename StringType7, typename StringType8, typename StringType9>
-PassRefPtr<StringImpl> tryMakeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6, StringType7 string7, StringType8 string8, StringType9 string9)
-{
- StringTypeAdapter<StringType1> adapter1(string1);
- StringTypeAdapter<StringType2> adapter2(string2);
- StringTypeAdapter<StringType3> adapter3(string3);
- StringTypeAdapter<StringType4> adapter4(string4);
- StringTypeAdapter<StringType5> adapter5(string5);
- StringTypeAdapter<StringType6> adapter6(string6);
- StringTypeAdapter<StringType7> adapter7(string7);
- StringTypeAdapter<StringType8> adapter8(string8);
- StringTypeAdapter<StringType9> adapter9(string9);
-
- UChar* buffer;
- bool overflow = false;
- unsigned length = adapter1.length();
- sumWithOverflow(length, adapter2.length(), overflow);
- sumWithOverflow(length, adapter3.length(), overflow);
- sumWithOverflow(length, adapter4.length(), overflow);
- sumWithOverflow(length, adapter5.length(), overflow);
- sumWithOverflow(length, adapter6.length(), overflow);
- sumWithOverflow(length, adapter7.length(), overflow);
- sumWithOverflow(length, adapter8.length(), overflow);
- sumWithOverflow(length, adapter9.length(), overflow);
- if (overflow)
- return 0;
- RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer);
- if (!resultImpl)
- return 0;
-
- UChar* result = buffer;
- adapter1.writeTo(result);
- result += adapter1.length();
- adapter2.writeTo(result);
- result += adapter2.length();
- adapter3.writeTo(result);
- result += adapter3.length();
- adapter4.writeTo(result);
- result += adapter4.length();
- adapter5.writeTo(result);
- result += adapter5.length();
- adapter6.writeTo(result);
- result += adapter6.length();
- adapter7.writeTo(result);
- result += adapter7.length();
- adapter8.writeTo(result);
- result += adapter8.length();
- adapter9.writeTo(result);
-
- return resultImpl.release();
-}
-
-
-// Convenience only.
-template<typename StringType1>
-String makeString(StringType1 string1)
-{
- return String(string1);
-}
-
-template<typename StringType1, typename StringType2>
-String makeString(StringType1 string1, StringType2 string2)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3, string4);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3, string4, string5);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3, string4, string5, string6);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6, typename StringType7>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6, StringType7 string7)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3, string4, string5, string6, string7);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6, typename StringType7, typename StringType8>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6, StringType7 string7, StringType8 string8)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3, string4, string5, string6, string7, string8);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-template<typename StringType1, typename StringType2, typename StringType3, typename StringType4, typename StringType5, typename StringType6, typename StringType7, typename StringType8, typename StringType9>
-String makeString(StringType1 string1, StringType2 string2, StringType3 string3, StringType4 string4, StringType5 string5, StringType6 string6, StringType7 string7, StringType8 string8, StringType9 string9)
-{
- RefPtr<StringImpl> resultImpl = tryMakeString(string1, string2, string3, string4, string5, string6, string7, string8, string9);
- if (!resultImpl)
- CRASH();
- return resultImpl.release();
-}
-
-} // namespace WTF
-
-using WTF::makeString;
-
-#include "StringOperators.h"
-#endif
projects / apple / javascriptcore.git / blobdiff