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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 __PHYSICAL_TYPE_UNIT_HPP_INCLUDED
#define __PHYSICAL_TYPE_UNIT_HPP_INCLUDED
#include "frontend/ast/TypeDeclaration.hpp"
#include "frontend/ast/ConstInteger.hpp"
#include "frontend/ast/PhysicalType.hpp"
#include "frontend/ast/Types.hpp"
namespace ast {
//! Unit of a physical type. (primary/secondary unit)
/** This class represents a primary or secondary unit declaration of
* a PhysicalType.
* It's no direct type declaration, but declares a symbol.
*/
class PhysicalTypeUnit : public SymbolDeclaration {
public:
//! c'tor
/** @param declName name of the declaration.
* @param unit phyiscal unit that is being referred to with factor.
* @param loc location of the declaration.
*/
PhysicalTypeUnit(
std::string *declName,
ConstInteger *unit,
Location loc
) : SymbolDeclaration(declName, loc),
physUnit(unit), parent(NULL) {
if (unit != NULL) {
factor = unit->value;
} else {
factor = 1;
}
}
//! 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 {
assert(this->name);
stream << *this->name;
if (this->physUnit) {
stream << " = " << this->physUnit;
}
}
/** reference physical unit and factor. */
ConstInteger *physUnit;
/** TypeDeclaration the unit belongs to
* warning: not reference counted here due to cyclic nature. */
const PhysicalType *parent;
/** factor of base units */
universal_integer factor;
protected:
/** Destructor */
virtual ~PhysicalTypeUnit() {
util::MiscUtil::terminate(physUnit);
}
};
}; /* namespace ast */
#endif /* __SECONDARY_TYPE_HPP_INCLUDED */
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