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
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* Copyright (c) 2013, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef PARSE_LOCATION_INCLUDED
#define PARSE_LOCATION_INCLUDED
#include <cstdlib> // size_t
/**
Helper class for the YYLTYPE
*/
struct Symbol_location {
const char *start; // token start
const char *end; // the 1st byte after the token
bool is_empty() const { return length() == 0; }
size_t length() const { return static_cast<size_t>(end - start); }
};
/**
Bison "location" class
*/
struct YYLTYPE {
Symbol_location cpp; // token location in the preprocessed buffer
Symbol_location raw; // token location in the raw buffer
bool is_empty() const { return cpp.is_empty(); }
};
/*
Note: YYLTYPE doesn't overload a default constructor (as well an underlying
Symbol_location).
OTOH if we need a zero-initialized POS, YYLTYPE or Symbol_location object,
we can simply call POS(), YYLTYPE() or Symbol_location(): C++ does
value-initialization in that case.
*/
typedef YYLTYPE POS;
#define YYLTYPE_IS_DECLARED 1 // signal Bison that we have our own YYLTYPE
/**
Bison calls this macro:
1. each time a rule is matched and
2. to compute a syntax error location.
@param [out] Current location of the whole matched rule
@param Rhs locations of all right hand side elements in the rule
@param N number of right hand side elements in the rule
*/
#define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (N) { \
(Current).cpp.start = YYRHSLOC(Rhs, 1).cpp.start; \
(Current).cpp.end = YYRHSLOC(Rhs, N).cpp.end; \
(Current).raw.start = YYRHSLOC(Rhs, 1).raw.start; \
(Current).raw.end = YYRHSLOC(Rhs, N).raw.end; \
} else { \
(Current).cpp.start = (Current).cpp.end = YYRHSLOC(Rhs, 0).cpp.end; \
(Current).raw.start = (Current).raw.end = YYRHSLOC(Rhs, 0).raw.end; \
} \
while (0)
#endif /* PARSE_LOCATION_INCLUDED */
|
