1  /* C++ modules.  Experimental!	-*- c++ -*-
       2     Copyright (C) 2017-2023 Free Software Foundation, Inc.
       3     Written by Nathan Sidwell <nathan@acm.org> while at FaceBook
       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 GXX_RESOLVER_H
      22  #define GXX_RESOLVER_H 1
      23  
      24  // Mapper interface for client and server bits
      25  #include "cody.hh"
      26  // C++
      27  #if !IN_GCC
      28  #include <string>
      29  #include <map>
      30  #endif
      31  
      32  // This is a GCC class, so GCC coding conventions on new bits.  
      33  class module_resolver : public Cody::Resolver
      34  {
      35  public:
      36    using parent = Cody::Resolver;
      37    using module_map = std::map<std::string, std::string>;
      38  
      39  private:
      40    std::string repo;
      41    std::string ident;
      42    module_map map;
      43    int fd_repo = -1;
      44    bool default_map = true;
      45    bool default_translate = true;
      46  
      47  public:
      48    module_resolver (bool map = true, bool xlate = false);
      49    virtual ~module_resolver () override;
      50  
      51  public:
      52    void set_default_map (bool d)
      53    {
      54      default_map = d;
      55    }
      56    void set_default_translate (bool d)
      57    {
      58      default_translate = d;
      59    }
      60    void set_ident (char const *i)
      61    {
      62      ident = i;
      63    }
      64    bool set_repo (std::string &&repo, bool force = false);
      65    bool add_mapping (std::string &&module, std::string &&file,
      66  		    bool force = false);
      67  
      68    // Return +ve line number of error, or -ve errno
      69    int read_tuple_file (int fd, char const *prefix, bool force = false);
      70    int read_tuple_file (int fd, std::string const &prefix,
      71  			    bool force = false)
      72    {
      73      return read_tuple_file (fd, prefix.empty () ? nullptr : prefix.c_str (),
      74  			    force);
      75    }
      76  
      77  public:
      78    // Virtual overriders, names are controlled by Cody::Resolver
      79    using parent::ConnectRequest;
      80    virtual module_resolver *ConnectRequest (Cody::Server *, unsigned version,
      81  					   std::string &agent,
      82  					   std::string &ident)
      83      override;
      84    using parent::ModuleRepoRequest;
      85    virtual int ModuleRepoRequest (Cody::Server *) override;
      86    using parent::ModuleExportRequest;
      87    virtual int ModuleExportRequest (Cody::Server *s, Cody::Flags,
      88  				   std::string &module)
      89      override;
      90    using parent::ModuleImportRequest;
      91    virtual int ModuleImportRequest (Cody::Server *s, Cody::Flags,
      92  				   std::string &module)
      93      override;
      94    using parent::IncludeTranslateRequest;
      95    virtual int IncludeTranslateRequest (Cody::Server *s, Cody::Flags,
      96  				       std::string &include)
      97      override;
      98  
      99    using parent::ModuleCompiledRequest;
     100    virtual int ModuleCompiledRequest (Cody::Server *s, Cody::Flags Flags,
     101  				     std::string &Module) override;
     102  
     103  private:
     104    using parent::GetCMISuffix;
     105    virtual char const *GetCMISuffix () override;
     106  
     107  private:
     108    int cmi_response (Cody::Server *s, std::string &module);
     109  };
     110  
     111  #endif