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/********************* */
/*! \file smt2.h
** \verbatim
** Original author: Christopher L. Conway
** Major contributors: Morgan Deters
** Minor contributors (to current version): Tianyi Liang
** This file is part of the CVC4 project.
** Copyright (c) 2009-2013 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Definitions of SMT2 constants.
**
** Definitions of SMT2 constants.
**/
#include "cvc4parser_private.h"
#ifndef __CVC4__PARSER__SMT2_H
#define __CVC4__PARSER__SMT2_H
#include "parser/parser.h"
#include "parser/smt1/smt1.h"
#include "theory/logic_info.h"
#include "util/abstract_value.h"
#include <sstream>
namespace CVC4 {
class SExpr;
namespace parser {
class Smt2 : public Parser {
friend class ParserBuilder;
public:
enum Theory {
THEORY_ARRAYS,
THEORY_BITVECTORS,
THEORY_CORE,
THEORY_DATATYPES,
THEORY_INTS,
THEORY_REALS,
THEORY_REALS_INTS,
THEORY_QUANTIFIERS,
THEORY_SETS,
THEORY_STRINGS,
THEORY_UF
};
private:
bool d_logicSet;
LogicInfo d_logic;
std::hash_map<std::string, Kind, StringHashFunction> operatorKindMap;
protected:
Smt2(ExprManager* exprManager, Input* input, bool strictMode = false, bool parseOnly = false);
public:
/**
* Add theory symbols to the parser state.
*
* @param theory the theory to open (e.g., Core, Ints)
*/
void addTheory(Theory theory);
void addOperator(Kind k, const std::string& name);
Kind getOperatorKind(const std::string& name) const;
bool isOperatorEnabled(const std::string& name) const;
bool isTheoryEnabled(Theory theory) const;
bool logicIsSet();
/**
* Sets the logic for the current benchmark. Declares any logic and
* theory symbols.
*
* @param name the name of the logic (e.g., QF_UF, AUFLIA)
*/
void setLogic(const std::string& name);
/**
* Get the logic.
*/
const LogicInfo& getLogic() const { return d_logic; }
void setInfo(const std::string& flag, const SExpr& sexpr);
void setOption(const std::string& flag, const SExpr& sexpr);
void checkThatLogicIsSet();
void checkUserSymbol(const std::string& name) {
if(name.length() > 0 && (name[0] == '.' || name[0] == '@')) {
std::stringstream ss;
ss << "cannot declare or define symbol `" << name << "'; symbols starting with . and @ are reserved in SMT-LIB";
parseError(ss.str());
}
}
void includeFile(const std::string& filename);
bool isAbstractValue(const std::string& name) {
return name.length() >= 2 && name[0] == '@' && name[1] != '0' &&
name.find_first_not_of("0123456789", 1) == std::string::npos;
}
Expr mkAbstractValue(const std::string& name) {
assert(isAbstractValue(name));
return getExprManager()->mkConst(AbstractValue(Integer(name.substr(1))));
}
/**
* Smt2 parser provides its own checkDeclaration, which does the
* same as the base, but with some more helpful errors.
*/
void checkDeclaration(const std::string& name, DeclarationCheck check,
SymbolType type = SYM_VARIABLE,
std::string notes = "") throw(ParserException) {
// if the symbol is something like "-1", we'll give the user a helpful
// syntax hint. (-1 is a valid identifier in SMT-LIB, NOT unary minus.)
if( check != CHECK_DECLARED ||
name[0] != '-' ||
name.find_first_not_of("0123456789", 1) != std::string::npos ) {
this->Parser::checkDeclaration(name, check, type, notes);
return;
}
std::stringstream ss;
ss << notes
<< "You may have intended to apply unary minus: `(- "
<< name.substr(1)
<< ")'\n";
this->Parser::checkDeclaration(name, check, type, ss.str());
}
void checkOperator(Kind kind, unsigned numArgs) throw(ParserException) {
Parser::checkOperator(kind, numArgs);
// strict SMT-LIB mode enables extra checks for some bitvector operators
// that CVC4 permits as N-ary but the standard requires is binary
if(strictModeEnabled()) {
switch(kind) {
case kind::BITVECTOR_CONCAT:
case kind::BITVECTOR_AND:
case kind::BITVECTOR_OR:
case kind::BITVECTOR_XOR:
case kind::BITVECTOR_MULT:
case kind::BITVECTOR_PLUS:
if(numArgs != 2) {
parseError("Operator requires exact 2 arguments in strict SMT-LIB compliance mode: " + kindToString(kind));
}
break;
default:
break; /* no problem */
}
}
}
private:
void addArithmeticOperators();
void addBitvectorOperators();
void addStringOperators();
};/* class Smt2 */
}/* CVC4::parser namespace */
}/* CVC4 namespace */
#endif /* __CVC4__PARSER__SMT2_H */
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