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96671cfc73
* rewriter: fix unused variable warnings * cmake: make missing non-virtual dtors error * treewide: add missing virtual destructors * cmake: add a few more checks * api: add missing virtual destructor to user_propagator_base * examples: compile cpp example with compiler warnings * model: fix unused variable warnings * rewriter: fix logical-op-parentheses warnings * sat: fix unused variable warnings * smt: fix unused variable warnings
63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
/*++
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Copyright (c) 2013 Microsoft Corporation
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Module Name:
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qe_vartest.h
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Abstract:
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Utilities for quantifiers.
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Author:
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Nikolaj Bjorner (nbjorner) 2013-08-28
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Revision History:
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--*/
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#pragma once
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#include "ast/ast.h"
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#include "util/uint_set.h"
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class is_variable_proc {
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public:
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virtual ~is_variable_proc() = default;
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virtual bool operator()(const expr* e) const = 0;
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};
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class is_variable_test final : public is_variable_proc {
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enum is_var_kind { BY_VAR_SET, BY_VAR_SET_COMPLEMENT, BY_NUM_DECLS };
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uint_set m_var_set;
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unsigned m_num_decls;
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is_var_kind m_var_kind;
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public:
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is_variable_test(uint_set const& vars, bool index_of_bound) :
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m_var_set(vars),
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m_num_decls(0),
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m_var_kind(index_of_bound?BY_VAR_SET:BY_VAR_SET_COMPLEMENT) {}
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is_variable_test(unsigned num_decls) :
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m_num_decls(num_decls),
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m_var_kind(BY_NUM_DECLS) {}
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bool operator()(const expr* e) const override {
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if (!is_var(e)) {
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return false;
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}
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unsigned idx = to_var(e)->get_idx();
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switch(m_var_kind) {
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case BY_VAR_SET:
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return m_var_set.contains(idx);
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case BY_VAR_SET_COMPLEMENT:
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return !m_var_set.contains(idx);
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case BY_NUM_DECLS:
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return idx < m_num_decls;
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}
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UNREACHABLE();
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return false;
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}
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};
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