mirror of
https://github.com/Z3Prover/z3
synced 2025-06-29 01:18:45 +00:00
56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
/*++
|
|
Copyright (c) 2022 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
extract_eqs.h
|
|
|
|
Abstract:
|
|
|
|
simplifier for solving equations
|
|
|
|
Author:
|
|
|
|
Nikolaj Bjorner (nbjorner) 2022-11-2.
|
|
|
|
--*/
|
|
|
|
|
|
#pragma once
|
|
|
|
#include "ast/ast_pp.h"
|
|
#include "ast/simplifiers/dependent_expr_state.h"
|
|
#include "ast/rewriter/th_rewriter.h"
|
|
#include "ast/expr_substitution.h"
|
|
#include "util/scoped_ptr_vector.h"
|
|
|
|
|
|
namespace euf {
|
|
|
|
struct dependent_eq {
|
|
expr* orig; // original expression that encoded equation
|
|
app* var; // isolated variable
|
|
expr_ref term; // defined term
|
|
expr_dependency_ref dep;
|
|
dependent_eq(expr* orig, app* var, expr_ref const& term, expr_dependency* d) :
|
|
orig(orig), var(var), term(term), dep(d, term.get_manager()) {}
|
|
};
|
|
|
|
typedef vector<dependent_eq> dep_eq_vector;
|
|
|
|
class extract_eq {
|
|
public:
|
|
virtual ~extract_eq() {}
|
|
virtual void get_eqs(dependent_expr const& e, dep_eq_vector& eqs) = 0;
|
|
virtual void pre_process(dependent_expr_state& fmls) {}
|
|
virtual void updt_params(params_ref const& p) {}
|
|
virtual void set_allow_booleans(bool f) {}
|
|
};
|
|
|
|
void register_extract_eqs(ast_manager& m, scoped_ptr_vector<extract_eq>& ex);
|
|
|
|
}
|
|
|
|
inline std::ostream& operator<<(std::ostream& out, euf::dependent_eq const& eq) {
|
|
return out << mk_pp(eq.var, eq.term.m()) << " = " << eq.term << "\n";
|
|
}
|