29 lines
925 B
C
29 lines
925 B
C
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/*
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Copyright (c) 2015 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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class obtain_struct {
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bool m_leaf;
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list<obtain_struct> m_children;
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public:
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obtain_struct():m_leaf(true) {}
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obtain_struct(list<obtain_struct> const & c):m_leaf(false), m_children(c) {}
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bool is_leaf() const { return m_leaf; }
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list<obtain_struct> const & get_children() const { return m_children; }
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void write(serializer & s) const;
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unsigned size() const;
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};
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expr mk_obtain_expr(obtain_struct const & s, buffer<expr> const & decls, expr const & from, expr const & goal);
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bool is_obtain_expr(expr const & e);
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void decompose_obtain(expr const & e, obtain_struct & s, expr & from, expr & decls_goal);
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void initialize_obtain_expr();
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void finalize_obtain_expr();
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}
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