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// A Bison parser, made by GNU Bison 3.7.2.
// Locations for Bison parsers in C++
// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// As a special exception, you may create a larger work that contains
// 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
// as a parser skeleton. Alternatively, if you modify or redistribute
// the parser skeleton itself, you may (at your option) remove this
// special exception, which will cause the skeleton and the resulting
// Bison output files to be licensed under the GNU General Public
// License without this special exception.
// This special exception was added by the Free Software Foundation in
// version 2.2 of Bison.
/**
** \file location.hh
** Define the yy::location class.
*/
#ifndef YY_YY_LOCATION_HH_INCLUDED
# define YY_YY_LOCATION_HH_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
namespace yy {
#line 58 "location.hh"
/// A point in a source file.
class position
{
public:
/// Type for file name.
typedef const std::string filename_type;
/// Type for line and column numbers.
typedef int counter_type;
/// Construct a position.
explicit position (filename_type* f = YY_NULLPTR,
counter_type l = 1,
counter_type c = 1)
: filename (f)
, line (l)
, column (c)
{}
/// Initialization.
void initialize (filename_type* 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.
filename_type* 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;
}
/** \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 file name.
typedef position::filename_type filename_type;
/// 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 (filename_type* f,
counter_type l = 1,
counter_type c = 1)
: begin (f, l, c)
, end (f, l, c)
{}
/// Initialization.
void initialize (filename_type* 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;
}
/** \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;
}
} // yy
#line 303 "location.hh"
#endif // !YY_YY_LOCATION_HH_INCLUDED