37 lines
1.7 KiB
C++
37 lines
1.7 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 "library/io_state.h"
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#include "library/unifier.h"
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#include "library/local_context.h"
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namespace lean {
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/** \brief Create a metavariable, and attach choice constraint for generating
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solutions using class-instances and tactic-hints.
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\param ctx Local context where placeholder is located
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\param prefix Prefix for metavariables that will be created by this procedure
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\param suffix If provided, then it is added to the main metavariable created by this procedure.
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\param relax True if opaque constants in the current module should be treated
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as transparent
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\param use_local_instances If instances in the local context should be used
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in the class-instance resolution
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\param is_strict True if constraint should fail if not solution is found,
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False if empty solution should be returned if there is no solution
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\param type Expected type for the placeholder (if known)
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\param tag To be associated with new metavariables and expressions (for error localization).
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*/
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pair<expr, constraint> mk_placeholder_elaborator(
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environment const & env, io_state const & ios, local_context const & ctx,
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name const & prefix, optional<name> const & suffix, bool relax_opaque, bool use_local_instances,
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bool is_strict, optional<expr> const & type, tag g, unifier_config const & cfg,
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pos_info_provider const * pip);
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void initialize_placeholder_elaborator();
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void finalize_placeholder_elaborator();
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}
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