z3-z3-4.13.0.src.ast.converters.expr_inverter.h Maven / Gradle / Ivy
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/*++
Copyright (c) 2017 Microsoft Corporation
Module Name:
expr_inverter.h
Abstract:
inverter interface and instance
Author:
Nikolaj Bjorner (nbjorner) 2022-10-11
--*/
#pragma once
#include "ast/converters/generic_model_converter.h"
class iexpr_inverter {
protected:
ast_manager& m;
std::function m_is_var;
generic_model_converter_ref m_mc;
bool m_produce_proofs = false;
bool uncnstr(expr* e) const { return m_is_var(e); }
bool uncnstr(unsigned num, expr * const * args) const;
void mk_fresh_uncnstr_var_for(sort* s, expr_ref& v);
void mk_fresh_uncnstr_var_for(func_decl* f, expr_ref& v) { mk_fresh_uncnstr_var_for(f->get_range(), v); }
void add_def(expr * v, expr * def);
void add_defs(unsigned num, expr * const * args, expr * u, expr * identity);
public:
iexpr_inverter(ast_manager& m): m(m) {}
virtual ~iexpr_inverter() {}
virtual void set_is_var(std::function& is_var) { m_is_var = is_var; }
virtual void set_model_converter(generic_model_converter* mc) { m_mc = mc; }
virtual void set_produce_proofs(bool p) { m_produce_proofs = true; }
virtual bool operator()(func_decl* f, unsigned n, expr* const* args, expr_ref& new_expr) = 0;
virtual bool mk_diff(expr* t, expr_ref& r) = 0;
virtual family_id get_fid() const = 0;
};
class expr_inverter : public iexpr_inverter {
ptr_vector m_inverters;
public:
expr_inverter(ast_manager& m);
~expr_inverter() override;
bool operator()(func_decl* f, unsigned n, expr* const* args, expr_ref& new_expr) override;
bool mk_diff(expr* t, expr_ref& r) override;
void set_is_var(std::function& is_var) override;
void set_model_converter(generic_model_converter* mc) override;
void set_produce_proofs(bool p) override;
family_id get_fid() const override { return null_family_id; }
};