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48 lines
1 KiB
C++
48 lines
1 KiB
C++
/*++
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Copyright (c) 2013 Microsoft Corporation
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Module Name:
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dl_mk_loop_counter.h
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Abstract:
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Add loop counter argument to relations.
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Author:
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Nikolaj Bjorner (nbjorner) 2013-03-31
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Revision History:
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--*/
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#pragma once
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#include "muz/base/dl_rule_transformer.h"
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#include "ast/arith_decl_plugin.h"
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namespace datalog {
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class mk_loop_counter : public rule_transformer::plugin {
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ast_manager& m;
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context& m_ctx;
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arith_util a;
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func_decl_ref_vector m_refs;
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obj_map<func_decl, func_decl*> m_new2old;
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obj_map<func_decl, func_decl*> m_old2new;
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app_ref add_arg(rule_set const& src, rule_set& dst, app* fn, unsigned idx);
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app_ref del_arg(app* fn);
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public:
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mk_loop_counter(context & ctx, unsigned priority = 33000);
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rule_set * operator()(rule_set const & source) override;
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func_decl* get_old(func_decl* f) const { return m_new2old.find(f); }
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rule_set * revert(rule_set const& source);
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};
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};
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