43 lines
1.4 KiB
C++
43 lines
1.4 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 "util/lua.h"
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#include "kernel/expr.h"
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namespace lean {
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/** \brief Create an explicit expression '@ f'.
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This only affects the elaborator behavior.
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*/
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expr mk_explicit(expr const & e);
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/** \brief Return true iff \c e is an explicit expression. */
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bool is_explicit(expr const & e);
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/** \brief Create an explicit expression that is accepted as is
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by the elaborator.
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*/
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expr mk_as_is(expr const & e);
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/** \brief Return true iff \c e was created with mk_as_is. */
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bool is_as_is(expr const & e);
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/** \brief Create an implicit expression '@^-1 f'.
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This only affects the elaborator behavior. This expression "cancels" the effect of '@'
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*/
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expr mk_implicit(expr const & e);
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/** \brief Return true iff \c e is an implicit expression. */
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bool is_implicit(expr const & e);
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/** \brief Return the argument of an explicit expression.
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\pre is_explicit(e)
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*/
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expr const & get_explicit_arg(expr const & e);
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/** \brief Return the argument of an expression created using mk_as_is.
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\pre is_as_is(e)
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*/
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expr const & get_as_is_arg(expr const & e);
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/** \brief Return the argument of an implicit expression.
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\pre is_implicit(e)
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*/
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expr const & get_implicit_arg(expr const & e);
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void open_explicit(lua_State * L);
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}
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