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       1                 :             : /* A rich_location subclass that lazily populates a diagnostic_path
       2                 :             :    with diagnostic context events, but only if the path is actually to be
       3                 :             :    used.
       4                 :             :    Copyright (C) 2025 Free Software Foundation, Inc.
       5                 :             :    Contributed by Qing Zhao<qing.zhao@oracle.com>
       6                 :             : 
       7                 :             : This file is part of GCC.
       8                 :             : 
       9                 :             : GCC is free software; you can redistribute it and/or modify it under
      10                 :             : the terms of the GNU General Public License as published by the Free
      11                 :             : Software Foundation; either version 3, or (at your option) any later
      12                 :             : version.
      13                 :             : 
      14                 :             : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      15                 :             : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      16                 :             : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      17                 :             : for more details.
      18                 :             : 
      19                 :             : You should have received a copy of the GNU General Public License
      20                 :             : along with GCC; see the file COPYING3.  If not see
      21                 :             : <http://www.gnu.org/licenses/>.  */
      22                 :             : 
      23                 :             : #ifndef GCC_DIAGNOSTIC_CONTEXT_RICH_LOCATION_H
      24                 :             : #define GCC_DIAGNOSTIC_CONTEXT_RICH_LOCATION_H
      25                 :             : 
      26                 :             : #include "gcc-rich-location.h"
      27                 :             : #include "diagnostics/lazy-paths.h"
      28                 :             : #include "tree-logical-location.h"
      29                 :             : 
      30                 :             : class lazy_diagnostic_context_path : public diagnostics::paths::lazy_path
      31                 :             : {
      32                 :             : public:
      33                 :      861474 :   lazy_diagnostic_context_path (const tree_logical_location_manager
      34                 :             :                                 &logical_loc_mgr,
      35                 :             :                                 location_t location, gimple *stmt)
      36                 :      861474 :   : diagnostics::paths::lazy_path (logical_loc_mgr),
      37                 :      857294 :     m_logical_loc_mgr (logical_loc_mgr),
      38                 :      861474 :     m_location (location), m_stmt (stmt)
      39                 :             :   {
      40                 :             :   }
      41                 :             : 
      42                 :             :   std::unique_ptr<diagnostics::paths::path>
      43                 :             :   make_inner_path () const final override;
      44                 :             :   /* This method will be called on demand if a diagnostic is actually
      45                 :             :      emitted for this rich_location.  */
      46                 :             : 
      47                 :             :   const tree_logical_location_manager &m_logical_loc_mgr;
      48                 :             :   location_t m_location;
      49                 :             :   gimple *m_stmt;
      50                 :             : };
      51                 :             : 
      52                 :             : class rich_location_with_details : public gcc_rich_location
      53                 :             : {
      54                 :             : public:
      55                 :      860721 :   rich_location_with_details (location_t location, gimple *stmt)
      56                 :      860721 :   : gcc_rich_location (location),
      57                 :      860721 :     m_lazy_diagnostic_context_path (m_logical_loc_mgr, location, stmt)
      58                 :             :   {
      59                 :      860721 :     set_path (&m_lazy_diagnostic_context_path);
      60                 :             :   }
      61                 :             : 
      62                 :         753 :   rich_location_with_details (location_t location, tree exp ATTRIBUTE_UNUSED)
      63                 :         753 :   : gcc_rich_location (location),
      64                 :         753 :     m_lazy_diagnostic_context_path (m_logical_loc_mgr, location, nullptr)
      65                 :             :   {
      66                 :             :   }
      67                 :             : 
      68                 :             : private:
      69                 :             :   const tree_logical_location_manager m_logical_loc_mgr;
      70                 :             :   lazy_diagnostic_context_path m_lazy_diagnostic_context_path;
      71                 :             : };
      72                 :             : 
      73                 :             : #endif // GCC_DIAGNOSTIC_CONTEXT_RICH_LOCATION_H