blob: d4cca8eaee91e88e9b93cd4f7e3aca959ce92c56 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/******************************************************************************
* Top contributors (to current version):
* Andrew Reynolds, Haniel Barbosa, Gereon Kremer
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
* in the top-level source directory and their institutional affiliations.
* All rights reserved. See the file COPYING in the top-level source
* directory for licensing information.
* ****************************************************************************
*
* Conversion from ProofNode to s-expressions.
*/
#include "cvc5_private.h"
#ifndef CVC5__EXPR__PROOF_NODE_TO_SEXPR_H
#define CVC5__EXPR__PROOF_NODE_TO_SEXPR_H
#include <map>
#include "expr/node.h"
#include "expr/proof_rule.h"
namespace cvc5 {
class ProofNode;
/** A class to convert ProofNode objects to s-expressions */
class ProofNodeToSExpr
{
public:
ProofNodeToSExpr();
~ProofNodeToSExpr() {}
/** Convert the given proof node to an s-expression
*
* This is useful for operations where it is useful to view a ProofNode as
* a Node. Printing is one such example, where a ProofNode can be printed
* as a dag after this conversion.
*
* The s-expression for a ProofNode has the form:
* (SEXPR (VAR "<d_rule>") S1 ... Sn (VAR ":args") (SEXPR <d_args>))
* where S1, ..., Sn are the s-expressions for its <d_children>.
*/
Node convertToSExpr(const ProofNode* pn);
private:
/** map proof rules to a variable */
std::map<PfRule, Node> d_pfrMap;
/** Dummy ":args" marker */
Node d_argsMarker;
/** Dummy ":conclusion" marker */
Node d_conclusionMarker;
/** map proof nodes to their s-expression */
std::map<const ProofNode*, Node> d_pnMap;
/**
* map nodes to a bound variable, used for nodes that have special AST status
* like builtin operators
*/
std::map<Node, Node> d_nodeMap;
/** get or make pf rule variable */
Node getOrMkPfRuleVariable(PfRule r);
/** get or make node variable */
Node getOrMkNodeVariable(Node n);
};
} // namespace cvc5
#endif /* CVC5__EXPR__PROOF_RULE_H */
|
