1/* C++ modules.  Experimental!	-*- c++ -*-
2   Copyright (C) 2017-2022 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
17You should have received a copy of the GNU General Public License
18along 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.
33class module_resolver : public Cody::Resolver
34{
35public:
36  using parent = Cody::Resolver;
37  using module_map = std::map<std::string, std::string>;
38
39private:
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
47public:
48  module_resolver (bool map = true, bool xlate = false);
49  virtual ~module_resolver () override;
50
51public:
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
77public:
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
103private:
104  using parent::GetCMISuffix;
105  virtual char const *GetCMISuffix () override;
106
107private:
108  int cmi_response (Cody::Server *s, std::string &module);
109};
110
111#endif
112