forked from qt-creator/qt-creator
move src/shared/cplusplus/ -> src/libs/3rdparty/cplusplus/
Approved-by: legal
This commit is contained in:
Oswald Buddenhagen
233
src/libs/3rdparty/cplusplus/Literals.cpp
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233
src/libs/3rdparty/cplusplus/Literals.cpp
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/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (info@qt.nokia.com)
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**
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**
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** GNU Lesser General Public License Usage
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**
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this file.
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** Please review the following information to ensure the GNU Lesser General
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** Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** Other Usage
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**
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at info@qt.nokia.com.
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**
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**************************************************************************/
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// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "Literals.h"
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#include "NameVisitor.h"
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#include <cstring>
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#include <algorithm>
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#include <iostream>
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using namespace CPlusPlus;
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////////////////////////////////////////////////////////////////////////////////
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Literal::Literal(const char *chars, unsigned size)
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: _next(0), _index(0)
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{
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_chars = new char[size + 1];
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std::strncpy(_chars, chars, size);
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_chars[size] = '\0';
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_size = size;
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_hashCode = hashCode(_chars, _size);
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}
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Literal::~Literal()
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{ delete[] _chars; }
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bool Literal::equalTo(const Literal *other) const
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{
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if (! other)
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return false;
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else if (this == other)
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return true;
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else if (hashCode() != other->hashCode())
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return false;
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else if (size() != other->size())
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return false;
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return ! std::strcmp(chars(), other->chars());
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}
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Literal::iterator Literal::begin() const
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{ return _chars; }
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Literal::iterator Literal::end() const
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{ return _chars + _size; }
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const char *Literal::chars() const
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{ return _chars; }
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char Literal::at(unsigned index) const
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{ return _chars[index]; }
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unsigned Literal::size() const
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{ return _size; }
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unsigned Literal::hashCode() const
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{ return _hashCode; }
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unsigned Literal::hashCode(const char *chars, unsigned size)
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{
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unsigned h = 0;
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for (unsigned i = 0; i < size; ++i)
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h = (h >> 5) - h + chars[i];
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return h;
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}
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////////////////////////////////////////////////////////////////////////////////
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StringLiteral::StringLiteral(const char *chars, unsigned size)
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: Literal(chars, size)
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{ }
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StringLiteral::~StringLiteral()
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{ }
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////////////////////////////////////////////////////////////////////////////////
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enum {
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NumericLiteralIsInt,
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NumericLiteralIsFloat,
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NumericLiteralIsDouble,
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NumericLiteralIsLongDouble,
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NumericLiteralIsLong,
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NumericLiteralIsLongLong
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};
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NumericLiteral::NumericLiteral(const char *chars, unsigned size)
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: Literal(chars, size), _flags(0)
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{
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f._type = NumericLiteralIsInt;
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if (size > 1 && chars[0] == '0' && (chars[1] == 'x' || chars[1] == 'X')) {
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f._isHex = true;
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} else {
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const char *begin = chars;
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const char *end = begin + size;
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bool done = false;
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const char *it = end - 1;
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for (; it != begin - 1 && ! done; --it) {
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switch (*it) {
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case 'l': case 'L': // long suffix
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case 'u': case 'U': // unsigned suffix
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case 'f': case 'F': // floating suffix
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break;
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default:
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done = true;
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break;
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} // switch
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}
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for (const char *dot = it; it != begin - 1; --it) {
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if (*dot == '.')
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f._type = NumericLiteralIsDouble;
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}
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for (++it; it != end; ++it) {
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if (*it == 'l' || *it == 'L') {
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if (f._type == NumericLiteralIsDouble) {
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f._type = NumericLiteralIsLongDouble;
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} else if (it + 1 != end && (it[1] == 'l' || it[1] == 'L')) {
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++it;
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f._type = NumericLiteralIsLongLong;
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} else {
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f._type = NumericLiteralIsLong;
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}
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} else if (*it == 'f' || *it == 'F') {
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f._type = NumericLiteralIsFloat;
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} else if (*it == 'u' || *it == 'U') {
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f._isUnsigned = true;
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}
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}
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}
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}
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NumericLiteral::~NumericLiteral()
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{ }
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bool NumericLiteral::isHex() const
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{ return f._isHex; }
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bool NumericLiteral::isUnsigned() const
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{ return f._isUnsigned; }
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bool NumericLiteral::isInt() const
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{ return f._type == NumericLiteralIsInt; }
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bool NumericLiteral::isFloat() const
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{ return f._type == NumericLiteralIsFloat; }
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bool NumericLiteral::isDouble() const
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{ return f._type == NumericLiteralIsDouble; }
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bool NumericLiteral::isLongDouble() const
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{ return f._type == NumericLiteralIsLongDouble; }
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bool NumericLiteral::isLong() const
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{ return f._type == NumericLiteralIsLong; }
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bool NumericLiteral::isLongLong() const
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{ return f._type == NumericLiteralIsLongLong; }
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////////////////////////////////////////////////////////////////////////////////
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Identifier::Identifier(const char *chars, unsigned size)
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: Literal(chars, size)
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{ }
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Identifier::~Identifier()
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{ }
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void Identifier::accept0(NameVisitor *visitor) const
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{ visitor->visit(this); }
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bool Identifier::isEqualTo(const Name *other) const
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{
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if (this == other)
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return true;
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else if (other) {
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if (const Identifier *nameId = other->asNameId()) {
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return equalTo(nameId);
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}
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}
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return false;
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}
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