mirror of
https://github.com/Z3Prover/z3
synced 2025-04-10 19:27:06 +00:00
55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
/*++
|
|
Copyright (c) 2007 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
base_simplifier.h
|
|
|
|
Abstract:
|
|
|
|
Base class for expression simplifier functors.
|
|
|
|
Author:
|
|
|
|
Leonardo (leonardo) 2008-01-11
|
|
|
|
Notes:
|
|
|
|
--*/
|
|
#ifndef _BASE_SIMPLIFIER_H_
|
|
#define _BASE_SIMPLIFIER_H_
|
|
|
|
#include"expr_map.h"
|
|
|
|
/**
|
|
\brief Implements basic functionality used by expression simplifiers.
|
|
*/
|
|
class base_simplifier {
|
|
protected:
|
|
ast_manager & m_manager;
|
|
expr_map m_cache;
|
|
ptr_vector<expr> m_todo;
|
|
|
|
void cache_result(expr * n, expr * r, proof * p) { m_cache.insert(n, r, p); }
|
|
void reset_cache() { m_cache.reset(); }
|
|
void flush_cache() { m_cache.flush(); }
|
|
void get_cached(expr * n, expr * & r, proof * & p) const { m_cache.get(n, r, p); }
|
|
|
|
void visit(expr * n, bool & visited) {
|
|
if (!is_cached(n)) {
|
|
m_todo.push_back(n);
|
|
visited = false;
|
|
}
|
|
}
|
|
|
|
public:
|
|
base_simplifier(ast_manager & m):
|
|
m_manager(m),
|
|
m_cache(m, m.fine_grain_proofs()) {
|
|
}
|
|
bool is_cached(expr * n) const { return m_cache.contains(n); }
|
|
ast_manager & get_manager() { return m_manager; }
|
|
};
|
|
|
|
#endif /* _BASE_SIMPLIFIER_H_ */
|