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https://github.com/Z3Prover/z3
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82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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model_core.h
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Abstract:
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Base class for models.
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Author:
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Leonardo de Moura (leonardo) 2011-04-30.
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Revision History:
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--*/
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#ifndef MODEL_CORE_H_
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#define MODEL_CORE_H_
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#include "ast/ast.h"
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#include "util/obj_hashtable.h"
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#include "model/func_interp.h"
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class model_core {
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protected:
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typedef obj_map<func_decl, expr *> decl2expr;
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typedef obj_map<func_decl, func_interp*> decl2finterp;
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ast_manager & m_manager;
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unsigned m_ref_count;
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decl2expr m_interp; //!< interpretation for uninterpreted constants
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decl2finterp m_finterp; //!< interpretation for uninterpreted functions
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ptr_vector<func_decl> m_decls; //!< domain of m_interp
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ptr_vector<func_decl> m_const_decls;
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ptr_vector<func_decl> m_func_decls;
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public:
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model_core(ast_manager & m):m_manager(m), m_ref_count(0) { }
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virtual ~model_core();
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ast_manager & get_manager() const { return m_manager; }
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ast_manager& m() const { return m_manager; }
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unsigned get_num_decls() const { return m_decls.size(); }
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func_decl * get_decl(unsigned i) const { return m_decls[i]; }
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bool has_interpretation(func_decl * d) const { return m_interp.contains(d) || m_finterp.contains(d); }
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expr * get_const_interp(func_decl * d) const { expr * v; return m_interp.find(d, v) ? v : nullptr; }
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func_interp * get_func_interp(func_decl * d) const { func_interp * fi; return m_finterp.find(d, fi) ? fi : nullptr; }
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bool eval(func_decl * f, expr_ref & r) const;
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unsigned get_num_constants() const { return m_const_decls.size(); }
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unsigned get_num_functions() const { return m_func_decls.size(); }
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func_decl * get_constant(unsigned i) const { return m_const_decls[i]; }
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func_decl * get_function(unsigned i) const { return m_func_decls[i]; }
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virtual ptr_vector<expr> const & get_universe(sort * s) const = 0;
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virtual unsigned get_num_uninterpreted_sorts() const = 0;
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virtual sort * get_uninterpreted_sort(unsigned idx) const = 0;
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void register_decl(func_decl * d, expr * v);
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void register_decl(func_decl * f, func_interp * fi);
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void unregister_decl(func_decl * d);
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virtual expr * get_some_value(sort * s) = 0;
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//
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// Reference counting
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//
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void inc_ref() { ++m_ref_count; }
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void dec_ref() {
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--m_ref_count;
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if (m_ref_count == 0) {
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dealloc(this);
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}
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}
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};
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#endif
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