z3-z3-4.13.0.src.ast.rewriter.char_rewriter.h Maven / Gradle / Ivy
The newest version!
/*++
Copyright (c) 2015 Microsoft Corporation
Module Name:
char_rewriter.h
Abstract:
Basic rewriting rules for characters constraints.
Author:
Nikolaj Bjorner (nbjorner) 2022-03-10
Notes:
--*/
#pragma once
#include "ast/char_decl_plugin.h"
#include "ast/rewriter/rewriter_types.h"
#include "util/params.h"
#include "util/lbool.h"
/**
\brief Cheap rewrite rules for character constraints
*/
class char_rewriter {
ast_manager& m;
char_decl_plugin* m_char;
br_status mk_char_from_bv(expr* e, expr_ref& result);
br_status mk_char_to_int(expr* e, expr_ref& result);
br_status mk_char_le(expr* a, expr* b, expr_ref& result);
br_status mk_char_is_digit(expr* a, expr_ref& result);
br_status mk_char_to_bv(expr* a, expr_ref& result);
public:
char_rewriter(ast_manager& m);
family_id get_fid();
br_status mk_app_core(func_decl * f, unsigned num_args, expr * const * args, expr_ref & result);
expr_ref mk_app(func_decl* f, expr_ref_vector const& args) { return mk_app(f, args.size(), args.data()); }
expr_ref mk_app(func_decl* f, unsigned n, expr* const* args) {
expr_ref result(m);
if (f->get_family_id() != get_fid() ||
BR_FAILED == mk_app_core(f, n, args, result))
result = m.mk_app(f, n, args);
return result;
}
};