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/* $Id$
*
* GetSig: determine the value of a signal.
*
* Copyright (C) 2008-2009 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 __GETSIG_HPP_INCLUDED
#define __GETSIG_HPP_INCLUDED
#include "intermediate/opcodes/OpCode.hpp"
#include "intermediate/operands/Operand.hpp"
namespace intermediate {
//! determine the value of a signal.
/** This class can determine the value of a Signal.
*
* Read Operands: src
* Write Operands: dst
* Reserved Operands: att
*
* src: contains the pointer to a signal instance.
* dst: destination of the value of the signal.
* att: reserved (might be used for attributes later on).
*
* Operation: dst = value_of_the_signal(src)
*/
class GetSig : public OpCode {
public:
//! c'tor
/** @param source source containing the pointer to the signal.
* @param dest destination operand for the value of the signal.
* @param attr reserved.
*/
GetSig(
Operand *source,
Operand *dest,
Operand *attr
) : src(source),
dst(dest),
att(attr) {
assert(source->type == OP_TYPE_POINTER);
assert(dest->type != OP_TYPE_POINTER);
}
//! Accept a Visitor.
/** All intermediate code nodes need to implement this method.
*
* @param v the Visitor that can visit this node.
*/
virtual void accept(Visitor& v) {
v.visit(*this);
}
//! source operand
Operand *src;
//! destination operand
Operand *dst;
//! reserved
Operand *att;
protected:
virtual ~GetSig() {
util::MiscUtil::terminate(this->src);
util::MiscUtil::terminate(this->dst);
util::MiscUtil::terminate(this->att);
}
};
}; /* namespace intermediate */
#endif /* __GETSIG_HPP_INCLUDED */
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