67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
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/*
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include <string>
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#include <iostream>
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#include "util/serializer.h"
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#include "library/shared_environment.h"
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namespace lean {
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/**
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\brief Return an environment based on \c env, where all modules in \c modules are imported.
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Modules included directly or indirectly by them are also imported.
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The environment \c env is usually an empty environment.
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*/
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environment import_modules(environment const & env, unsigned num_modules, std::string const * modules);
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environment import_module(environment const & env, std::string const & module);
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/**
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\brief Store/Export module using \c env to the output stream \c out.
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*/
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void export_module(std::ostream & out, environment const & env);
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typedef std::function<environment(environment const & env)> update_env_fn;
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/**
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\brief A reader for importing data from a stream using deserializer \c d.
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There are two way to update the environment being constructed.
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We can directly update it using \c senv, or we may register a delayed
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update using \c delayed_update. The delayed updates are executed using
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an order based on import order. The delayed updates are useful for
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objects such as rewrite rule sets where the order in which they are
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constructed matter.
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*/
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typedef void (*module_object_reader)(deserializer & d,
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shared_environment & senv,
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std::function<void(update_env_fn const &)> & delayed_update);
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/**
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\brief Register a module object reader. The key \c k is used to identify the class of objects
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that can be read by the given reader.
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*/
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void register_module_object_reader(std::string const & k, module_object_reader r);
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/** \brief Auxiliary class for registering module readers when the lean executable is loaded. */
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struct register_module_object_reader_fn {
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register_module_object_reader_fn(std::string const & k, module_object_reader r) {
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register_module_object_reader(k, r);
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}
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};
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/**
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\brief Add a function that should be invoked when the environment is exported.
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The key \c k identifies which module_object_reader should be used to deserialize the object
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when the module is imported.
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\see module_object_reader
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*/
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environment add(environment const & env, std::string const & k, std::function<void(serializer &)> const & writer);
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/** \brief Add the given declaration to the environment, and mark it to be exported. */
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environment add(environment const & env, certified_declaration const & d);
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}
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