Move Source/WTF/wtf to Source/wtf

Source/WTF/wtf/text/IntegerToStringConversion.h

-/*
- * Copyright (C) 2012 Apple Inc. All Rights Reserved.
- * Copyright (C) 2012 Patrick Gansterer <paroga@paroga.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef IntegerToStringConversion_h
-#define IntegerToStringConversion_h
-
-#include <wtf/text/StringBuilder.h>
-#include <wtf/text/StringImpl.h>
-
-namespace WTF {
-
-enum PositiveOrNegativeNumber {
-    PositiveNumber,
-    NegativeNumber
-};
-
-template<typename T> struct ConversionTrait;
-
-template<> struct ConversionTrait<String> {
-    typedef PassRefPtr<StringImpl> ReturnType;
-    typedef void AdditionalArgumentType;
-    static inline ReturnType flush(LChar* characters, unsigned length, void*) { return StringImpl::create(characters, length); }
-};
-template<> struct ConversionTrait<StringBuilder> {
-    typedef void ReturnType;
-    typedef StringBuilder AdditionalArgumentType;
-    static inline ReturnType flush(LChar* characters, unsigned length, StringBuilder* stringBuilder) { stringBuilder->append(characters, length); }
-};
-
-template<typename T> struct UnsignedIntegerTrait;
-
-template<> struct UnsignedIntegerTrait<int> {
-    typedef unsigned int Type;
-};
-template<> struct UnsignedIntegerTrait<long> {
-    typedef unsigned long Type;
-};
-template<> struct UnsignedIntegerTrait<long long> {
-    typedef unsigned long long Type;
-};
-
-template<typename T, typename UnsignedIntegerType, PositiveOrNegativeNumber NumberType>
-static typename ConversionTrait<T>::ReturnType numberToStringImpl(UnsignedIntegerType number, typename ConversionTrait<T>::AdditionalArgumentType* additionalArgument)
-{
-    LChar buf[sizeof(UnsignedIntegerType) * 3 + 1];
-    LChar* end = buf + WTF_ARRAY_LENGTH(buf);
-    LChar* p = end;
-
-    do {
-        *--p = static_cast<LChar>((number % 10) + '0');
-        number /= 10;
-    } while (number);
-
-    if (NumberType == NegativeNumber)
-        *--p = '-';
-
-    return ConversionTrait<T>::flush(p, static_cast<unsigned>(end - p), additionalArgument);
-}
-
-template<typename T, typename SignedIntegerType>
-inline typename ConversionTrait<T>::ReturnType numberToStringSigned(SignedIntegerType number, typename ConversionTrait<T>::AdditionalArgumentType* additionalArgument = 0)
-{
-    if (number < 0)
-        return numberToStringImpl<T, typename UnsignedIntegerTrait<SignedIntegerType>::Type, NegativeNumber>(-number, additionalArgument);
-    return numberToStringImpl<T, typename UnsignedIntegerTrait<SignedIntegerType>::Type, PositiveNumber>(number, additionalArgument);
-}
-
-template<typename T, typename UnsignedIntegerType>
-inline typename ConversionTrait<T>::ReturnType numberToStringUnsigned(UnsignedIntegerType number, typename ConversionTrait<T>::AdditionalArgumentType* additionalArgument = 0)
-{
-    return numberToStringImpl<T, UnsignedIntegerType, PositiveNumber>(number, additionalArgument);
-}
-
-} // namespace WTF
-
-#endif // IntegerToStringConversion_h