path: root/src/mongo/db/cst/location_gen.h

// A Bison parser, made by GNU Bison 3.6.3.

// Locations for Bison parsers in C++

// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.

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// it under the terms of the GNU General Public License as published by
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// along with this program.  If not, see <http://www.gnu.org/licenses/>.

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// part or all of the Bison parser skeleton and distribute that work
// under terms of your choice, so long as that work isn't itself a
// parser generator using the skeleton or a modified version thereof
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/**
 ** \file location_gen.h
 ** Define the mongo::location class.
 */

#ifndef YY_YY_LOCATION_GEN_H_INCLUDED
#define YY_YY_LOCATION_GEN_H_INCLUDED

#include <iostream>
#include <string>

#ifndef YY_NULLPTR
#if defined __cplusplus
#if 201103L <= __cplusplus
#define YY_NULLPTR nullptr
#else
#define YY_NULLPTR 0
#endif
#else
#define YY_NULLPTR ((void*)0)
#endif
#endif

#line 58 "pipeline_grammar.yy"
namespace mongo {
#line 59 "location_gen.h"

/// A point in a source file.
class position {
public:
    /// Type for line and column numbers.
    typedef int counter_type;

    /// Construct a position.
    explicit position(std::string* f = YY_NULLPTR, counter_type l = 1, counter_type c = 1)
        : filename(f), line(l), column(c) {}


    /// Initialization.
    void initialize(std::string* fn = YY_NULLPTR, counter_type l = 1, counter_type c = 1) {
        filename = fn;
        line = l;
        column = c;
    }

    /** \name Line and Column related manipulators
     ** \{ */
    /// (line related) Advance to the COUNT next lines.
    void lines(counter_type count = 1) {
        if (count) {
            column = 1;
            line = add_(line, count, 1);
        }
    }

    /// (column related) Advance to the COUNT next columns.
    void columns(counter_type count = 1) {
        column = add_(column, count, 1);
    }
    /** \} */

    /// File name to which this position refers.
    std::string* filename;
    /// Current line number.
    counter_type line;
    /// Current column number.
    counter_type column;

private:
    /// Compute max (min, lhs+rhs).
    static counter_type add_(counter_type lhs, counter_type rhs, counter_type min) {
        return lhs + rhs < min ? min : lhs + rhs;
    }
};

/// Add \a width columns, in place.
inline position& operator+=(position& res, position::counter_type width) {
    res.columns(width);
    return res;
}

/// Add \a width columns.
inline position operator+(position res, position::counter_type width) {
    return res += width;
}

/// Subtract \a width columns, in place.
inline position& operator-=(position& res, position::counter_type width) {
    return res += -width;
}

/// Subtract \a width columns.
inline position operator-(position res, position::counter_type width) {
    return res -= width;
}

/// Compare two position objects.
inline bool operator==(const position& pos1, const position& pos2) {
    return (pos1.line == pos2.line && pos1.column == pos2.column &&
            (pos1.filename == pos2.filename ||
             (pos1.filename && pos2.filename && *pos1.filename == *pos2.filename)));
}

/// Compare two position objects.
inline bool operator!=(const position& pos1, const position& pos2) {
    return !(pos1 == pos2);
}

/** \brief Intercept output stream redirection.
 ** \param ostr the destination output stream
 ** \param pos a reference to the position to redirect
 */
template <typename YYChar>
std::basic_ostream<YYChar>& operator<<(std::basic_ostream<YYChar>& ostr, const position& pos) {
    if (pos.filename)
        ostr << *pos.filename << ':';
    return ostr << pos.line << '.' << pos.column;
}

/// Two points in a source file.
class location {
public:
    /// Type for line and column numbers.
    typedef position::counter_type counter_type;

    /// Construct a location from \a b to \a e.
    location(const position& b, const position& e) : begin(b), end(e) {}

    /// Construct a 0-width location in \a p.
    explicit location(const position& p = position()) : begin(p), end(p) {}

    /// Construct a 0-width location in \a f, \a l, \a c.
    explicit location(std::string* f, counter_type l = 1, counter_type c = 1)
        : begin(f, l, c), end(f, l, c) {}


    /// Initialization.
    void initialize(std::string* f = YY_NULLPTR, counter_type l = 1, counter_type c = 1) {
        begin.initialize(f, l, c);
        end = begin;
    }

    /** \name Line and Column related manipulators
     ** \{ */
public:
    /// Reset initial location to final location.
    void step() {
        begin = end;
    }

    /// Extend the current location to the COUNT next columns.
    void columns(counter_type count = 1) {
        end += count;
    }

    /// Extend the current location to the COUNT next lines.
    void lines(counter_type count = 1) {
        end.lines(count);
    }
    /** \} */


public:
    /// Beginning of the located region.
    position begin;
    /// End of the located region.
    position end;
};

/// Join two locations, in place.
inline location& operator+=(location& res, const location& end) {
    res.end = end.end;
    return res;
}

/// Join two locations.
inline location operator+(location res, const location& end) {
    return res += end;
}

/// Add \a width columns to the end position, in place.
inline location& operator+=(location& res, location::counter_type width) {
    res.columns(width);
    return res;
}

/// Add \a width columns to the end position.
inline location operator+(location res, location::counter_type width) {
    return res += width;
}

/// Subtract \a width columns to the end position, in place.
inline location& operator-=(location& res, location::counter_type width) {
    return res += -width;
}

/// Subtract \a width columns to the end position.
inline location operator-(location res, location::counter_type width) {
    return res -= width;
}

/// Compare two location objects.
inline bool operator==(const location& loc1, const location& loc2) {
    return loc1.begin == loc2.begin && loc1.end == loc2.end;
}

/// Compare two location objects.
inline bool operator!=(const location& loc1, const location& loc2) {
    return !(loc1 == loc2);
}

/** \brief Intercept output stream redirection.
 ** \param ostr the destination output stream
 ** \param loc a reference to the location to redirect
 **
 ** Avoid duplicate information.
 */
template <typename YYChar>
std::basic_ostream<YYChar>& operator<<(std::basic_ostream<YYChar>& ostr, const location& loc) {
    location::counter_type end_col = 0 < loc.end.column ? loc.end.column - 1 : 0;
    ostr << loc.begin;
    if (loc.end.filename && (!loc.begin.filename || *loc.begin.filename != *loc.end.filename))
        ostr << '-' << loc.end.filename << ':' << loc.end.line << '.' << end_col;
    else if (loc.begin.line < loc.end.line)
        ostr << '-' << loc.end.line << '.' << end_col;
    else if (loc.begin.column < end_col)
        ostr << '-' << end_col;
    return ostr;
}

#line 58 "pipeline_grammar.yy"
}  // namespace mongo
#line 333 "location_gen.h"

#endif  // !YY_YY_LOCATION_GEN_H_INCLUDED