gcc/c++tools/resolver.h

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/* C++ modules. Experimental! -*- c++ -*-
Copyright (C) 2017-2021 Free Software Foundation, Inc.
Written by Nathan Sidwell <nathan@acm.org> while at FaceBook
This file is part of GCC.
GCC 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, or (at your option)
any later version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GXX_RESOLVER_H
#define GXX_RESOLVER_H 1
// Mapper interface for client and server bits
#include "cody.hh"
// C++
#if !IN_GCC
#include <string>
#include <map>
#endif
// This is a GCC class, so GCC coding conventions on new bits.
class module_resolver : public Cody::Resolver
{
public:
using parent = Cody::Resolver;
using module_map = std::map<std::string, std::string>;
private:
std::string repo;
std::string ident;
module_map map;
int fd_repo = -1;
bool default_map = true;
bool default_translate = true;
public:
module_resolver (bool map = true, bool xlate = false);
virtual ~module_resolver () override;
public:
void set_default_map (bool d)
{
default_map = d;
}
void set_default_translate (bool d)
{
default_translate = d;
}
void set_ident (char const *i)
{
ident = i;
}
bool set_repo (std::string &&repo, bool force = false);
bool add_mapping (std::string &&module, std::string &&file,
bool force = false);
// Return +ve line number of error, or -ve errno
int read_tuple_file (int fd, char const *prefix, bool force = false);
int read_tuple_file (int fd, std::string const &prefix,
bool force = false)
{
return read_tuple_file (fd, prefix.empty () ? nullptr : prefix.c_str (),
force);
}
public:
// Virtual overriders, names are controlled by Cody::Resolver
using parent::ConnectRequest;
virtual module_resolver *ConnectRequest (Cody::Server *, unsigned version,
std::string &agent,
std::string &ident)
override;
using parent::ModuleRepoRequest;
virtual int ModuleRepoRequest (Cody::Server *) override;
using parent::ModuleExportRequest;
virtual int ModuleExportRequest (Cody::Server *s, Cody::Flags,
std::string &module)
override;
using parent::ModuleImportRequest;
virtual int ModuleImportRequest (Cody::Server *s, Cody::Flags,
std::string &module)
override;
using parent::IncludeTranslateRequest;
virtual int IncludeTranslateRequest (Cody::Server *s, Cody::Flags,
std::string &include)
override;
private:
using parent::GetCMISuffix;
virtual char const *GetCMISuffix () override;
private:
int cmi_response (Cody::Server *s, std::string &module);
};
#endif