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38 lines
587 B
C++
38 lines
587 B
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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collect_cccs.h
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Abstract:
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Collect variables by occurrences.
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Author:
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Leonardo (leonardo) 2011-10-22
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Notes:
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--*/
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#ifndef COLLECT_OCCS_H_
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#define COLLECT_OCCS_H_
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class collect_occs {
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expr_fast_mark1 m_visited;
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expr_fast_mark2 m_more_than_once;
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typedef std::pair<expr *, unsigned> frame;
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svector<frame> m_stack;
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ptr_vector<app> m_vars;
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bool visit(expr * t);
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void process(expr * t);
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public:
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void operator()(goal const & g, obj_hashtable<expr> & r);
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};
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#endif
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