forked from qt-creator/qt-creator
139 lines
4.3 KiB
C++
139 lines
4.3 KiB
C++
/***************************************************************************
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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) 2008 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.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 GPL Exception
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** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
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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 <cstring>
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#include <algorithm>
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#include <iostream>
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CPLUSPLUS_BEGIN_NAMESPACE
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////////////////////////////////////////////////////////////////////////////////
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Literal::Literal(const char *chars, unsigned size)
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: _index(0), _next(0)
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{
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_chars = new char[size + 1];
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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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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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NumericLiteral::NumericLiteral(const char *chars, unsigned size)
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: Literal(chars, size)
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{ }
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NumericLiteral::~NumericLiteral()
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{ }
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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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bool Identifier::isEqualTo(const Identifier *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 (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 ! strcmp(chars(), other->chars());
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}
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CPLUSPLUS_END_NAMESPACE
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