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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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expr_substitution.h
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Abstract:
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expr -> expr substitution
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Author:
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Leonardo (leonardo) 2011-04-29
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Notes:
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--*/
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#ifndef _EXPR_SUBSTITUTION_H_
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#define _EXPR_SUBSTITUTION_H_
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#include"ast.h"
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class expr_substitution {
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ast_manager & m_manager;
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obj_map<expr, expr*> m_subst;
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scoped_ptr<obj_map<expr, proof*> > m_subst_pr;
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scoped_ptr<obj_map<expr, expr_dependency*> > m_subst_dep;
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unsigned m_cores_enabled:1;
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unsigned m_proofs_enabled:1;
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void init();
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public:
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expr_substitution(ast_manager & m);
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expr_substitution(ast_manager & m, bool cores_enabled);
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expr_substitution(ast_manager & m, bool cores_enabled, bool proofs_enabled);
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~expr_substitution();
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ast_manager & m() const { return m_manager; }
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bool proofs_enabled() const { return m_proofs_enabled; }
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bool unsat_core_enabled() const { return m_cores_enabled; }
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bool empty() const { return m_subst.empty(); }
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void insert(expr * s, expr * def, proof * def_pr = 0, expr_dependency * def_dep = 0);
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void erase(expr * s);
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bool find(expr * s, expr * & def, proof * & def_pr);
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bool find(expr * s, expr * & def, proof * & def_pr, expr_dependency * & def_dep);
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void reset();
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void cleanup();
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};
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#endif
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