52 lines
2.9 KiB
C++
52 lines
2.9 KiB
C++
/*
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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 "kernel/expr.h"
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#include "kernel/expr_sets.h"
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#include "kernel/type_checker.h"
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#include "frontends/lean/local_decls.h"
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namespace lean {
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class parser;
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typedef std::unique_ptr<type_checker> type_checker_ptr;
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void check_atomic(name const & n);
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void check_in_section_or_context(parser const & p);
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bool is_root_namespace(name const & n);
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name remove_root_prefix(name const & n);
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/** \brief Return the levels in \c ls that are defined in the section. */
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levels collect_section_levels(level_param_names const & ls, parser & p);
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/** \brief Collect local (section) constants occurring in type and value, sort them, and store in section_ps */
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void collect_section_locals(expr const & type, expr const & value, parser const & p, buffer<expr> & section_ps);
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/** \brief Copy the local parameters to \c section_ps, then sort \c section_ps (using the order in which they were declared). */
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void sort_section_params(expr_struct_set const & locals, parser const & p, buffer<expr> & section_ps);
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list<expr> locals_to_context(expr const & e, parser const & p);
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/** \brief Fun(locals, e), but also propagate \c e position to result */
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expr Fun(buffer<expr> const & locals, expr const & e, parser & p);
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/** \brief Pi(locals, e), but also propagate \c e position to result */
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expr Pi(buffer<expr> const & locals, expr const & e, parser & p);
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/** \brief Similar to Fun(locals, e, p), but the types are marked as 'as-is' (i.e., they are not processed by the elaborator. */
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expr Fun_as_is(buffer<expr> const & locals, expr const & e, parser & p);
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/** \brief Similar to Pi(locals, e, p), but the types are marked as 'as-is' (i.e., they are not processed by the elaborator. */
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expr Pi_as_is(buffer<expr> const & locals, expr const & e, parser & p);
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/** \brief Create the resultant universe level using the levels computed during introduction rule elaboration */
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level mk_result_level(environment const & env, buffer<level> const & r_lvls);
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/** \brief Return true if \c u occurs in \c l */
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bool occurs(level const & u, level const & l);
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/** \brief Convert the universe metavariables in \c e in new universe parameters.
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The substitution \c s is updated with the mapping metavar -> new param.
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The set of parameter names \c ps and the buffer \c new_ps are also updated.
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*/
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expr univ_metavars_to_params(environment const & env, local_decls<level> const & lls, substitution & s,
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name_set & ps, buffer<name> & new_ps, expr const & e);
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/** \brief Instantiate metavariable application \c meta (?M ...) using \c subst */
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expr instantiate_meta(expr const & meta, substitution & subst);
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/** \brief Return a 'failed to synthesize placholder' justification for the given
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metavariable application \c m of the form (?m l_1 ... l_k) */
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justification mk_failed_to_synthesize_jst(environment const & env, expr const & m);
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}
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