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/********************* -*- C++ -*- */
/** command.h
** Original author: mdeters
** Major contributors: dejan
** Minor contributors (to current version): cconway
** This file is part of the CVC4 prototype.
** Copyright (c) 2009 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.
**
** Implementation of the command pattern on SmtEngines. Generated by
** the parser.
**/
#ifndef __CVC4__COMMAND_H
#define __CVC4__COMMAND_H
#include <iostream>
#include "cvc4_config.h"
#include "expr/expr.h"
namespace CVC4 {
class SmtEngine;
class Command;
}/* CVC4 namespace */
namespace CVC4 {
std::ostream& operator<<(std::ostream&, const Command&) CVC4_PUBLIC;
class CVC4_PUBLIC Command {
public:
virtual void invoke(CVC4::SmtEngine* smt_engine) = 0;
virtual ~Command() {};
virtual void toString(std::ostream&) const = 0;
};/* class Command */
class CVC4_PUBLIC EmptyCommand : public Command {
public:
EmptyCommand(std::string name = "");
void invoke(CVC4::SmtEngine* smt_engine);
void toString(std::ostream& out) const;
private:
std::string d_name;
};/* class EmptyCommand */
class CVC4_PUBLIC AssertCommand : public Command {
public:
AssertCommand(const BoolExpr& e);
void invoke(CVC4::SmtEngine* smt_engine);
void toString(std::ostream& out) const;
protected:
BoolExpr d_expr;
};/* class AssertCommand */
class CVC4_PUBLIC CheckSatCommand : public Command {
public:
CheckSatCommand();
CheckSatCommand(const BoolExpr& e);
void invoke(SmtEngine* smt);
void toString(std::ostream& out) const;
protected:
BoolExpr d_expr;
};/* class CheckSatCommand */
class CVC4_PUBLIC QueryCommand : public Command {
public:
QueryCommand(const BoolExpr& e);
void invoke(SmtEngine* smt);
void toString(std::ostream& out) const;
protected:
BoolExpr d_expr;
};/* class QueryCommand */
class CVC4_PUBLIC CommandSequence : public Command {
public:
CommandSequence();
~CommandSequence();
void invoke(SmtEngine* smt);
void addCommand(Command* cmd);
void toString(std::ostream& out) const;
private:
/** All the commands to be executed (in sequence) */
std::vector<Command*> d_command_sequence;
/** Next command to be executed */
unsigned int d_last_index;
};/* class CommandSequence */
}/* CVC4 namespace */
#endif /* __CVC4__COMMAND_H */
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