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/********************* -*- C++ -*- */
/** expr_manager.h
** This file is part of the CVC4 prototype.
** Copyright (c) 2009 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.
**
**/
#ifndef __CVC4__NODE_MANAGER_H
#define __CVC4__NODE_MANAGER_H
#include <vector>
#include <map>
#include "node.h"
#include "kind.h"
namespace CVC4 {
namespace expr {
class ExprBuilder;
}/* CVC4::expr namespace */
class NodeManager {
static __thread NodeManager* s_current;
friend class CVC4::NodeBuilder;
typedef std::map<uint64_t, std::vector<Node> > hash_t;
hash_t d_hash;
Node lookup(uint64_t hash, const Node& e);
public:
static NodeManager* currentEM() { return s_current; }
// general expression-builders
Node mkExpr(Kind kind);
Node mkExpr(Kind kind, const Node& child1);
Node mkExpr(Kind kind, const Node& child1, const Node& child2);
Node mkExpr(Kind kind, const Node& child1, const Node& child2, const Node& child3);
Node mkExpr(Kind kind, const Node& child1, const Node& child2, const Node& child3, const Node& child4);
Node mkExpr(Kind kind, const Node& child1, const Node& child2, const Node& child3, const Node& child4, const Node& child5);
// N-ary version
Node mkExpr(Kind kind, const std::vector<Node>& children);
// variables are special, because duplicates are permitted
Node mkVar();
// TODO: these use the current EM (but must be renamed)
/*
static Node mkExpr(Kind kind)
{ currentEM()->mkExpr(kind); }
static Node mkExpr(Kind kind, Node child1);
{ currentEM()->mkExpr(kind, child1); }
static Node mkExpr(Kind kind, Node child1, Node child2);
{ currentEM()->mkExpr(kind, child1, child2); }
static Node mkExpr(Kind kind, Node child1, Node child2, Node child3);
{ currentEM()->mkExpr(kind, child1, child2, child3); }
static Node mkExpr(Kind kind, Node child1, Node child2, Node child3, Node child4);
{ currentEM()->mkExpr(kind, child1, child2, child3, child4); }
static Node mkExpr(Kind kind, Node child1, Node child2, Node child3, Node child4, Node child5);
{ currentEM()->mkExpr(kind, child1, child2, child3, child4, child5); }
*/
// do we want a varargs one? perhaps not..
};
}/* CVC4 namespace */
#endif /* __CVC4__EXPR_MANAGER_H */
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