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/********************* -*- C++ -*- */
/** node_attribute.h
** Original author: mdeters
** Major contributors: dejan
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 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.
**
** Node attributes.
**/
#ifndef __CVC4__EXPR__NODE_ATTRIBUTE_H
#define __CVC4__EXPR__NODE_ATTRIBUTE_H
#include <stdint.h>
#include "config.h"
#include "context/context.h"
#include "expr/node.h"
namespace CVC4 {
namespace expr {
template <class value_type>
class AttrTables;
// global (or TSS)
extern CDMap<uint64_t> g_hash_bool;
extern CDMap<uint64_t> g_hash_int;
extern CDMap<Node> g_hash_expr;
extern CDMap<void*> g_hash_ptr;
template <class T>
class AttrTable;
template <>
class AttrTable<bool> {
public:
class BitAccessor {
uint64_t& d_word;
unsigned d_bit;
public:
BitAccessor& operator=(bool b);
// continue...
};
// bool specialization
static CDMap<uint64_t> *s_hash;
template <class Attr>
BitAccessor& find(Node e, const Attr&);
template <class Attr>
bool find(Node e, const Attr&) const;
};
template <>
class AttrTable<uint64_t> {
public:
// int(egral) specialization
static CDMap<uint64_t> *s_hash;
uint64_t& find(Node);
uint64_t& find(Node) const;
};
template <class T>
class AttrTable<T*> {
// pointer specialization
static CDMap<void*> *s_hash;
public:
};
template <>
class AttrTable<Node> {
public:
// Node specialization
static CDMap<Node> *s_hash;
Node find(Node);
};
CDMap<uint64_t>* AttrTable<bool>::s_hash = &g_hash_bool;
CDMap<uint64_t>* AttrTable<uint64_t>::s_hash = &g_hash_int;
CDMap<Node>* AttrTable<Node>::s_hash = &g_hash_expr;
template <class T>
CDMap<void*>* AttrTable<T*>::s_hash = &g_hash_ptr;
template <class Attr>
class AttributeTable {
typedef typename Attr::value_type value_type;
AttrTable<value_type>& d_table;
};
}/* CVC4::expr namespace */
}/* CVC4 namespace */
#endif /* __CVC4__EXPR__EXPR_ATTRIBUTE_H */
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