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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 __WAIT_STAT_HPP_INCLUDED
#define __WAIT_STAT_HPP_INCLUDED
#include <list>
#include "frontend/ast/ConditionedStat.hpp"
#include "frontend/ast/Name.hpp"
namespace ast {
//! a VHDL wait statement.
/** This class represents a VHDL wait statement. */
class WaitStat : public ConditionedStat {
public:
//! c'tor
/** @param sens Sensitivity list of signals.
* @param cond Condition to stop waiting.
* @param time wait for max timeout.
* @param loc location of the wait statement.
*/
WaitStat(
std::list<Name*> *sens,
Expression *cond,
Expression *time,
Location loc
) : ConditionedStat(cond, loc),
sensitivities(sens),
timeout(time) {}
//! 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 << "WAIT";
if (this->sensitivities) {
stream << " ON ";
util::MiscUtil::listPut(this->sensitivities, stream, ", ");
}
if (this->timeout) {
stream << " FOR " << this->timeout;
}
stream << ';';
}
/** sensitivity list to wait on*/
std::list<Name*> *sensitivities;
/** wait maximal for timeout */
Expression *timeout;
protected:
/** Destructor */
virtual ~WaitStat() {
util::MiscUtil::lterminate(sensitivities);
util::MiscUtil::terminate(timeout);
}
};
}; /* namespace ast */
#endif /* __WAIT_STAT_HPP_INCLUDED */
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