lean2/src/frontends/lean/util.h

/*
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 "kernel/expr.h"
#include "kernel/expr_sets.h"
namespace lean {
class parser;
void check_atomic(name const & n);
void check_in_section(parser const & p);
bool is_root_namespace(name const & n);
name remove_root_prefix(name const & n);
/** \brief Return the levels in \c ls that are defined in the section. */
levels collect_section_levels(level_param_names const & ls, parser & p);
/** \brief Collect local (section) constants occurring in type and value, sort them, and store in section_ps */
void collect_section_locals(expr const & type, expr const & value, parser const & p, buffer<expr> & section_ps);
/** \brief Copy the local parameters to \c section_ps, then sort \c section_ps (using the order in which they were declared). */
void sort_section_params(expr_struct_set const & locals, parser const & p, buffer<expr> & section_ps);
/** \brief collect all locals in \c e and store and locals, and return Fun(locals, e) */
expr abstract_locals(expr const & e, parser const & p, buffer<expr> & locals);
/** \brief 'inverse' of \c abstract_locals, given a binding \c b instantiate it using locals */
expr instantiate_locals(expr const & b, buffer<expr> & locals);
}