32 lines
900 B
C++
32 lines
900 B
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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#include "library/head_map.h"
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#include "library/explicit.h"
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namespace lean {
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head_index::head_index(expr const & e) {
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expr f = get_app_fn(e);
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while (true) {
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if (is_explicit(f))
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f = get_explicit_arg(f);
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else if (is_consume_args(f))
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f = get_consume_args_arg(f);
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else
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break;
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}
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m_kind = f.kind();
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if (is_constant(f))
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m_const_name = const_name(f);
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}
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int head_index::cmp::operator()(head_index const & i1, head_index const & i2) const {
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if (i1.m_kind != i2.m_kind || i1.m_kind != expr_kind::Constant)
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return static_cast<int>(i1.m_kind) - static_cast<int>(i2.m_kind);
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else
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return quick_cmp(i1.m_const_name, i2.m_const_name);
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}
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}
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