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       1                 :             : /* Classes for adding special effects when quoting source code.
       2                 :             :    Copyright (C) 2024 Free Software Foundation, Inc.
       3                 :             :    Contributed by David Malcolm <dmalcolm@redhat.com>.
       4                 :             : 
       5                 :             : This file is part of GCC.
       6                 :             : 
       7                 :             : GCC is free software; you can redistribute it and/or modify it
       8                 :             : under the terms of the GNU General Public License as published by
       9                 :             : the Free Software Foundation; either version 3, or (at your option)
      10                 :             : any later version.
      11                 :             : 
      12                 :             : GCC is distributed in the hope that it will be useful, but
      13                 :             : WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :             : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :             : General Public License for more details.
      16                 :             : 
      17                 :             : You should have received a copy of the GNU General Public License
      18                 :             : along with GCC; see the file COPYING3.  If not see
      19                 :             : <http://www.gnu.org/licenses/>.  */
      20                 :             : 
      21                 :             : #ifndef GCC_DIAGNOSTIC_LABEL_EFFECTS_H
      22                 :             : #define GCC_DIAGNOSTIC_LABEL_EFFECTS_H
      23                 :             : 
      24                 :             : /* Abstract base class for describing special effects when printing
      25                 :             :    a label when quoting source code.  */
      26                 :             : 
      27                 :        2577 : class label_effects
      28                 :             : {
      29                 :             : public:
      30                 :        2577 :   virtual ~label_effects () {}
      31                 :             : 
      32                 :             :   /* Adding links between labels, e.g. for visualizing control flow
      33                 :             :      in execution paths.  */
      34                 :             :   virtual bool has_in_edge (unsigned range_idx) const = 0;
      35                 :             :   virtual bool has_out_edge (unsigned range_idx) const = 0;
      36                 :             : };
      37                 :             : 
      38                 :             : /* A class to hold state when quoting a run of lines of source code.  */
      39                 :             : 
      40                 :             : class diagnostic_source_effect_info
      41                 :             : {
      42                 :             : public:
      43                 :        2577 :   diagnostic_source_effect_info ()
      44                 :        2577 :   : m_leading_in_edge_column (-1),
      45                 :        2577 :     m_trailing_out_edge_column (-1)
      46                 :             :   {
      47                 :             :   }
      48                 :             : 
      49                 :             :   /* The column for an incoming link to the first label,
      50                 :             :      or -1 if no such link.  */
      51                 :             :   int m_leading_in_edge_column;
      52                 :             : 
      53                 :             :   /* The column for an outgoing link from the final label,
      54                 :             :      or -1 if no such link.  */
      55                 :             :   int m_trailing_out_edge_column;
      56                 :             : };
      57                 :             : 
      58                 :             : #endif /* GCC_DIAGNOSTIC_LABEL_EFFECTS_H */