90 lines
3.8 KiB
C++
90 lines
3.8 KiB
C++
/*
|
|
Copyright (c) 2014 Microsoft Corporation. All rights reserved.
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
|
|
|
Author: Leonardo de Moura
|
|
*/
|
|
#pragma once
|
|
#include <algorithm>
|
|
#include <string>
|
|
#include "util/rc.h"
|
|
#include "kernel/expr.h"
|
|
|
|
namespace lean {
|
|
/**
|
|
\brief Module index. The kernel provides only basic support
|
|
for implementing a module system outside of the kernel.
|
|
|
|
We need at least the notion of module index in the kernel, because
|
|
it affects the convertability procedure.
|
|
|
|
Given an opaque definition (non-theorem) d in module m1, then d is considered
|
|
to be transparent for any other opaque definition in module m1.
|
|
*/
|
|
typedef unsigned module_idx;
|
|
|
|
/**
|
|
\brief Environment definitions, theorems, axioms and variable declarations.
|
|
*/
|
|
class declaration {
|
|
struct cell;
|
|
cell * m_ptr;
|
|
explicit declaration(cell * ptr);
|
|
friend struct cell;
|
|
public:
|
|
/**
|
|
\brief The default constructor creates a reference to a "dummy"
|
|
declaration. The actual "dummy" declaration is not relevant, and
|
|
no procedure should rely on the kind of declaration used.
|
|
|
|
We have a default constructor because some collections only work
|
|
with types that have a default constructor.
|
|
*/
|
|
declaration();
|
|
declaration(declaration const & s);
|
|
declaration(declaration && s);
|
|
~declaration();
|
|
|
|
friend void swap(declaration & a, declaration & b) { std::swap(a.m_ptr, b.m_ptr); }
|
|
|
|
declaration & operator=(declaration const & s);
|
|
declaration & operator=(declaration && s);
|
|
|
|
friend bool is_eqp(declaration const & d1, declaration const & d2) { return d1.m_ptr == d2.m_ptr; }
|
|
|
|
bool is_definition() const;
|
|
bool is_axiom() const;
|
|
bool is_theorem() const;
|
|
bool is_var_decl() const;
|
|
|
|
name get_name() const;
|
|
level_param_names const & get_univ_params() const;
|
|
expr get_type() const;
|
|
|
|
expr get_value() const;
|
|
bool is_opaque() const;
|
|
unsigned get_weight() const;
|
|
module_idx get_module_idx() const;
|
|
bool use_conv_opt() const;
|
|
|
|
friend declaration mk_definition(environment const & env, name const & n, level_param_names const & params, expr const & t,
|
|
expr const & v, bool opaque, module_idx mod_idx, bool use_conv_opt);
|
|
friend declaration mk_definition(name const & n, level_param_names const & params, expr const & t, expr const & v, bool opaque,
|
|
unsigned weight, module_idx mod_idx, bool use_conv_opt);
|
|
friend declaration mk_theorem(name const & n, level_param_names const & params, expr const & t, expr const & v);
|
|
friend declaration mk_axiom(name const & n, level_param_names const & params, expr const & t);
|
|
friend declaration mk_var_decl(name const & n, level_param_names const & params, expr const & t);
|
|
};
|
|
|
|
inline optional<declaration> none_declaration() { return optional<declaration>(); }
|
|
inline optional<declaration> some_declaration(declaration const & o) { return optional<declaration>(o); }
|
|
inline optional<declaration> some_declaration(declaration && o) { return optional<declaration>(std::forward<declaration>(o)); }
|
|
|
|
declaration mk_definition(name const & n, level_param_names const & params, expr const & t, expr const & v,
|
|
bool opaque = false, unsigned weight = 0, module_idx mod_idx = 0, bool use_conv_opt = true);
|
|
declaration mk_definition(environment const & env, name const & n, level_param_names const & params, expr const & t, expr const & v,
|
|
bool opaque = false, module_idx mod_idx = 0, bool use_conv_opt = true);
|
|
declaration mk_theorem(name const & n, level_param_names const & params, expr const & t, expr const & v);
|
|
declaration mk_axiom(name const & n, level_param_names const & params, expr const & t);
|
|
declaration mk_var_decl(name const & n, level_param_names const & params, expr const & t);
|
|
}
|