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
|
/******************************************************************************
* Top contributors (to current version):
* Christopher L. Conway, Mathias Preiner, Morgan Deters
*
* 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.
* ****************************************************************************
*
* An ANTLR3 bounded token stream.
*
* The stream has a bounded lookahead/behind k. Calling LT(i) with i > k or
* i < k will raise an exception. Only use this factory if you *know* that the
* grammar has bounded lookahead (e.g., if you've set the k parameter in the
* parser.
*
* NOTE: ANTLR3 puts "hidden" tokens into this buffer too, so pathological
* inputs can exceed the k token lookahead, even if your grammar really
* is LL(k). Be sure that irrelevant tokens are SKIP()'d and not
* "hidden".
*/
#include "cvc4parser_private.h"
#ifndef CVC5__PARSER__BOUNDED_TOKEN_BUFFER_H
#define CVC5__PARSER__BOUNDED_TOKEN_BUFFER_H
#include <antlr3defs.h>
namespace cvc5 {
namespace parser {
#ifdef __cplusplus
extern "C" {
#endif
/** A "super" structure for COMMON_TOKEN_STREAM. */
typedef struct BOUNDED_TOKEN_BUFFER_struct
{
pANTLR3_COMMON_TOKEN_STREAM commonTstream;
pANTLR3_COMMON_TOKEN* tokenBuffer;
// tokenNeg1, token1, token2;
ANTLR3_UINT32 currentIndex, maxIndex, k, bufferSize;
ANTLR3_BOOLEAN empty, done;
} BOUNDED_TOKEN_BUFFER, *pBOUNDED_TOKEN_BUFFER;
pBOUNDED_TOKEN_BUFFER
BoundedTokenBufferSourceNew(ANTLR3_UINT32 k, pANTLR3_TOKEN_SOURCE source);
void
BoundedTokenBufferFree(pBOUNDED_TOKEN_BUFFER buffer);
#ifdef __cplusplus
}/* extern "C" */
#endif
} // namespace parser
} // namespace cvc5
#endif /* CVC5__PARSER__BOUNDED_TOKEN_BUFFER_H */
|
