27 lines
598 B
C
27 lines
598 B
C
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/*
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Copyright (c) 2013 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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namespace lean {
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/**
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\brief Return a new placeholder expression. To be able to track location,
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a new constant for each placeholder.
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*/
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expr mk_placholder();
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/**
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\brief Return true iff the given expression is a placeholder.
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*/
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bool is_placeholder(expr const & e);
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/**
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\brief Return true iff the given expression contains placeholders.
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*/
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bool has_placeholder(expr const & e);
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}
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