mirror of
https://github.com/Z3Prover/z3
synced 2025-04-15 13:28:47 +00:00
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/*++
|
|
Copyright (c) 2006 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
cached_var_subst.h
|
|
|
|
Abstract:
|
|
|
|
<abstract>
|
|
|
|
Author:
|
|
|
|
Leonardo de Moura (leonardo) 2009-01-23.
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
#pragma once
|
|
|
|
#include "ast/rewriter/var_subst.h"
|
|
#include "util/map.h"
|
|
#include "smt/smt_enode.h"
|
|
|
|
class cached_var_subst {
|
|
struct key {
|
|
quantifier * m_qa;
|
|
unsigned m_num_bindings;
|
|
expr * m_bindings[0];
|
|
};
|
|
struct key_hash_proc {
|
|
unsigned operator()(key * k) const {
|
|
return string_hash(reinterpret_cast<char const *>(k->m_bindings), sizeof(expr *) * k->m_num_bindings, k->m_qa->get_id());
|
|
}
|
|
};
|
|
struct key_eq_proc {
|
|
bool operator()(key * k1, key * k2) const;
|
|
};
|
|
typedef map<key *, expr *, key_hash_proc, key_eq_proc> instances;
|
|
var_subst m_proc;
|
|
expr_ref_vector m_refs;
|
|
instances m_instances;
|
|
region m_region;
|
|
ptr_vector<key> m_new_keys; // mapping from num_bindings -> next key
|
|
public:
|
|
cached_var_subst(ast_manager & m);
|
|
void operator()(quantifier * qa, unsigned num_bindings, smt::enode * const * bindings, expr_ref & result);
|
|
void reset();
|
|
};
|
|
|
|
|