| /* |
| * 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 <wtf/text/AtomicString.h> |
| #endif |
| |
| // This macro is helpful for testing how many intermediate Strings are created while evaluating an |
| // expression containing operator+. |
| #ifndef WTF_STRINGTYPEADAPTER_COPIED_WTF_STRING |
| #define WTF_STRINGTYPEADAPTER_COPIED_WTF_STRING() ((void)0) |
| #endif |
| |
| namespace WTF { |
| |
| template<typename StringType> |
| class StringTypeAdapter { |
| }; |
| |
| template<> |
| class StringTypeAdapter<char> { |
| public: |
| StringTypeAdapter<char>(char buffer) |
| : m_buffer(buffer) |
| { |
| } |
| |
| unsigned length() { return 1; } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| *destination = m_buffer; |
| } |
| |
| void writeTo(UChar* destination) { *destination = m_buffer; } |
| |
| private: |
| unsigned char m_buffer; |
| }; |
| |
| template<> |
| class StringTypeAdapter<LChar> { |
| public: |
| StringTypeAdapter<LChar>(LChar buffer) |
| : m_buffer(buffer) |
| { |
| } |
| |
| unsigned length() { return 1; } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| *destination = m_buffer; |
| } |
| |
| void writeTo(UChar* destination) { *destination = m_buffer; } |
| |
| private: |
| LChar m_buffer; |
| }; |
| |
| template<> |
| class StringTypeAdapter<UChar> { |
| public: |
| StringTypeAdapter<UChar>(UChar buffer) |
| : m_buffer(buffer) |
| { |
| } |
| |
| unsigned length() { return 1; } |
| |
| bool is8Bit() { return m_buffer <= 0xff; } |
| |
| void writeTo(LChar* destination) |
| { |
| ASSERT(is8Bit()); |
| *destination = static_cast<LChar>(m_buffer); |
| } |
| |
| 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; } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| for (unsigned i = 0; i < m_length; ++i) |
| destination[i] = static_cast<LChar>(m_buffer[i]); |
| } |
| |
| 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<LChar*> { |
| public: |
| StringTypeAdapter<LChar*>(LChar* buffer) |
| : m_buffer(buffer) |
| , m_length(strlen(reinterpret_cast<char*>(buffer))) |
| { |
| } |
| |
| unsigned length() { return m_length; } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| memcpy(destination, m_buffer, m_length * sizeof(LChar)); |
| } |
| |
| void writeTo(UChar* destination) |
| { |
| for (unsigned i = 0; i < m_length; ++i) |
| destination[i] = m_buffer[i]; |
| } |
| |
| private: |
| const LChar* 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; } |
| |
| bool is8Bit() { return false; } |
| |
| NO_RETURN_DUE_TO_CRASH void writeTo(LChar*) |
| { |
| CRASH(); |
| } |
| |
| void writeTo(UChar* destination) |
| { |
| memcpy(destination, m_buffer, 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; } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| memcpy(destination, m_buffer, static_cast<size_t>(m_length) * sizeof(LChar)); |
| } |
| |
| 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 LChar*> { |
| public: |
| StringTypeAdapter<const LChar*>(const LChar* buffer) |
| : m_buffer(buffer) |
| , m_length(strlen(reinterpret_cast<const char*>(buffer))) |
| { |
| } |
| |
| unsigned length() { return m_length; } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| memcpy(destination, m_buffer, static_cast<size_t>(m_length) * sizeof(LChar)); |
| } |
| |
| void writeTo(UChar* destination) |
| { |
| for (unsigned i = 0; i < m_length; ++i) |
| destination[i] = m_buffer[i]; |
| } |
| |
| private: |
| const LChar* 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(); } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| for (size_t i = 0; i < m_buffer.size(); ++i) |
| destination[i] = static_cast<unsigned char>(m_buffer[i]); |
| } |
| |
| void writeTo(UChar* destination) |
| { |
| for (size_t i = 0; i < m_buffer.size(); ++i) |
| destination[i] = static_cast<unsigned char>(m_buffer[i]); |
| } |
| |
| private: |
| const Vector<char>& m_buffer; |
| }; |
| |
| template<> |
| class StringTypeAdapter<Vector<LChar> > { |
| public: |
| StringTypeAdapter<Vector<LChar> >(const Vector<LChar>& buffer) |
| : m_buffer(buffer) |
| { |
| } |
| |
| size_t length() { return m_buffer.size(); } |
| |
| bool is8Bit() { return true; } |
| |
| void writeTo(LChar* destination) |
| { |
| for (size_t i = 0; i < m_buffer.size(); ++i) |
| destination[i] = m_buffer[i]; |
| } |
| |
| void writeTo(UChar* destination) |
| { |
| for (size_t i = 0; i < m_buffer.size(); ++i) |
| destination[i] = m_buffer[i]; |
| } |
| |
| private: |
| const Vector<LChar>& m_buffer; |
| }; |
| |
| template<> |
| class StringTypeAdapter<String> { |
| public: |
| StringTypeAdapter<String>(const String& string) |
| : m_buffer(string) |
| { |
| } |
| |
| unsigned length() { return m_buffer.length(); } |
| |
| bool is8Bit() { return m_buffer.isNull() || m_buffer.is8Bit(); } |
| |
| void writeTo(LChar* destination) |
| { |
| unsigned length = m_buffer.length(); |
| |
| ASSERT(is8Bit()); |
| const LChar* data = m_buffer.characters8(); |
| for (unsigned i = 0; i < length; ++i) |
| destination[i] = data[i]; |
| |
| WTF_STRINGTYPEADAPTER_COPIED_WTF_STRING(); |
| } |
| |
| void writeTo(UChar* destination) |
| { |
| unsigned length = m_buffer.length(); |
| |
| if (is8Bit()) { |
| const LChar* data = m_buffer.characters8(); |
| for (unsigned i = 0; i < length; ++i) |
| destination[i] = data[i]; |
| } else { |
| const UChar* data = m_buffer.characters16(); |
| for (unsigned i = 0; i < length; ++i) |
| destination[i] = data[i]; |
| } |
| |
| WTF_STRINGTYPEADAPTER_COPIED_WTF_STRING(); |
| } |
| |
| 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(); } |
| |
| bool is8Bit() { return m_adapter.is8Bit(); } |
| |
| void writeTo(LChar* destination) { m_adapter.writeTo(destination); } |
| 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); |
| |
| bool overflow = false; |
| unsigned length = adapter1.length(); |
| sumWithOverflow(length, adapter2.length(), overflow); |
| if (overflow) |
| return 0; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* result = buffer; |
| adapter1.writeTo(result); |
| result += adapter1.length(); |
| adapter2.writeTo(result); |
| |
| return resultImpl.release(); |
| } |
| |
| UChar* buffer; |
| 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); |
| |
| bool overflow = false; |
| unsigned length = adapter1.length(); |
| sumWithOverflow(length, adapter2.length(), overflow); |
| sumWithOverflow(length, adapter3.length(), overflow); |
| if (overflow) |
| return 0; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* result = buffer; |
| adapter1.writeTo(result); |
| result += adapter1.length(); |
| adapter2.writeTo(result); |
| result += adapter2.length(); |
| adapter3.writeTo(result); |
| |
| return resultImpl.release(); |
| } |
| |
| UChar* buffer = 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); |
| |
| 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; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit() && adapter4.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* 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(); |
| } |
| |
| UChar* buffer; |
| 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); |
| |
| 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; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit() && adapter4.is8Bit() && adapter5.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* 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(); |
| } |
| |
| UChar* buffer; |
| 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); |
| |
| 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; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit() && adapter4.is8Bit() && adapter5.is8Bit() && adapter6.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* 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(); |
| } |
| |
| UChar* buffer; |
| 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); |
| |
| 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; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit() && adapter4.is8Bit() && adapter5.is8Bit() && adapter6.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* 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(); |
| } |
| |
| UChar* buffer; |
| 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); |
| |
| 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; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit() && adapter4.is8Bit() && adapter5.is8Bit() && adapter6.is8Bit() && adapter7.is8Bit() && adapter8.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* 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(); |
| } |
| |
| UChar* buffer; |
| 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); |
| |
| 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; |
| |
| if (adapter1.is8Bit() && adapter2.is8Bit() && adapter3.is8Bit() && adapter4.is8Bit() && adapter5.is8Bit() && adapter6.is8Bit() && adapter7.is8Bit() && adapter8.is8Bit() && adapter9.is8Bit()) { |
| LChar* buffer; |
| RefPtr<StringImpl> resultImpl = StringImpl::tryCreateUninitialized(length, buffer); |
| if (!resultImpl) |
| return 0; |
| |
| LChar* 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(); |
| } |
| |
| UChar* buffer; |
| 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 <wtf/text/StringOperators.h> |
| #endif |