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/* $Id$
*
* Copyright (C) 2007-2009 FAUmachine Team <info@faumachine.org>.
* This program is free software. You can redistribute it and/or modify it
* under the terms of the GNU General Public License, either version 2 of
* the License, or (at your option) any later version. See COPYING.
*/
#ifndef __CONST_INTEGER_HPP_INCLUDED
#define __CONST_INTEGER_HPP_INCLUDED
#include "frontend/ast/Expression.hpp"
#include "frontend/visitor/Visitor.hpp"
#include "frontend/ast/Types.hpp"
#include "frontend/ast/Name.hpp"
namespace ast {
//! One constant integer.
/** This class represents once constant VHDL integer.
*/
class ConstInteger : public Expression {
public:
//! c'tor
/** @param val value of the VHDL integer.
* @param unit physical unit.
* @param loc location of the definition.
*/
ConstInteger(
universal_integer val,
Name* unit,
Location loc);
//! c'tor
/** @param val value of the VHDL integer.
* @param unit physical unit.
* @param loc location of the definition.
*/
ConstInteger(
universal_real val,
Name* unit,
Location loc);
//! c'tor (no physical unit given).
/** @param val value of the VHDL integer.
* @param loc location of the definition.
*/
ConstInteger(
universal_integer val,
Location loc
) : Expression(BASE_TYPE_INTEGER, loc),
physUnit(NULL),
value(val) {}
//! Accept a Visitor.
/** All leaf AST nodes need to implement this method.
*
* @param visitor the Visitor that can visit this node.
*/
virtual void accept(Visitor& visitor) {
visitor.visit(*this);
}
/** Put a textual representation of the AstNode on the stream.
* @param stream stream to put the textual representation to.
*/
virtual void put(std::ostream &stream) const {
stream << this->value;
}
/** Name of the physical unit, if any. */
Name *physUnit;
/** Value of the integer. */
universal_integer value;
private:
//! determine the value by given Unit Name.
/** @param unit unit name.
* @param numericValue real/integer factor.
* @return integral value of the constant.
*/
template<typename T>
static universal_integer
makeValue(Name *unit, T numericValue);
};
}; /* namespace ast */
#endif /* __CONST_INTEGER_HPP_INCLUDED */
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