source: src/CodeGen/LineStream.h @ 6e300d9

//
// 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.
//
// LineStream.h -- Modified stream that inserts line directives into output.
//
// Author           : Andrew Beach
// Created On       : Wed May 4 09:15:00 2017
// Last Modified By : Andrew Beach
// Last Modified On : Mon May 8 14:03:00 2017
// Update Count     : 1
//

#ifndef LINE_STREAM_H
#define LINE_STREAM_H

#include <ostream>
#include <sstream>
#include <string>

#include "Common/utility.h"

namespace CodeGen {

        class LineStream {
                std::ostream & baseStream;
                std::ostringstream buffer;

                bool const insertLines;

                CodeLocation actualLocation;
                CodeLocation expectedLocation;

                void printLineDirective(CodeLocation const & location);
                bool actualDiffersFromExpected() const;
                void emptyBuffer(bool addNewline);

        public:
                typedef std::ostream &(*StreamFlag)(std::ostream &);

                LineStream(std::ostream & baseStream, bool insertLines) :
                        baseStream(baseStream), insertLines(insertLines)
                {}

                /// Update the currentLocation in source code.
                void setLoc(CodeLocation const & location);

                /// Formated output is buffered until flushed.
                LineStream & operator<<(char const *str);
                LineStream & operator<<(std::string const & str);
                LineStream & operator<<(StreamFlag flag);

                /// Flush all buffered output.
                LineStream & flush();

        }; // LineStream

} // CodeGen

#endif // LINE_STREAM_H