source: src/SynTree/Constant.h @ 7e4b44db

//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// Constant.h --
//
// Author           : Richard C. Bilson
// Created On       : Mon May 18 07:44:20 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Sat Jul 22 09:54:46 2017
// Update Count     : 17
//

#pragma once

#include <iosfwd>     // for ostream
#include <string>     // for string

#include "Mutator.h"  // for Mutator
#include "Visitor.h"  // for Visitor

#include "Common/Indenter.h"  // for Indenter

class Type;

class Constant {
  public:
        Constant( Type * type, std::string rep, unsigned long long val );
        Constant( Type * type, std::string rep, double val );
        Constant( const Constant & other );
        
        virtual Constant * clone() const { return new Constant( *this ); }

        Type * get_type() { return type; }
        void set_type( Type * newValue ) { type = newValue; }
        std::string & get_value() { return rep; }
        void set_value( std::string newValue ) { rep = newValue; }
        unsigned long long get_ival() const;
        double get_dval() const;

        /// generates a boolean constant of the given bool
        static Constant from_bool( bool b );
        /// generates a char constant of the given char
        static Constant from_char( char c );
        /// generates an integer constant of the given int
        static Constant from_int( int i );
        /// generates an integer constant of the given unsigned long int
        static Constant from_ulong( unsigned long i );
        /// generates a floating point constant of the given double
        static Constant from_double( double d );

        /// generates a null pointer value for the given type. void * if omitted.
        static Constant null( Type * ptrtype = nullptr );

        virtual void accept( Visitor & v ) { v.visit( this ); }
        virtual Constant * acceptMutator( Mutator & m ) { return m.mutate( this ); }
        virtual void print( std::ostream & os, Indenter indent = 0 ) const;
  private:
        Type * type;
        std::string rep;
        union Val {
                unsigned long long ival;
                double dval;
                Val( unsigned long long ival ) : ival( ival ) {}
                Val( double dval ) : dval( dval ) {}
        } val;
};

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make install" //
// End: //