Line data Source code
1 : /* A Bison parser, made by GNU Bison 3.7.5. */
2 :
3 : /* Bison implementation for Yacc-like parsers in C
4 :
5 : Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2021 Free Software Foundation,
6 : Inc.
7 :
8 : This program is free software: you can redistribute it and/or modify
9 : it under the terms of the GNU General Public License as published by
10 : the Free Software Foundation, either version 3 of the License, or
11 : (at your option) any later version.
12 :
13 : This program is distributed in the hope that it will be useful,
14 : but WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 : GNU General Public License for more details.
17 :
18 : You should have received a copy of the GNU General Public License
19 : along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 :
21 : /* As a special exception, you may create a larger work that contains
22 : part or all of the Bison parser skeleton and distribute that work
23 : under terms of your choice, so long as that work isn't itself a
24 : parser generator using the skeleton or a modified version thereof
25 : as a parser skeleton. Alternatively, if you modify or redistribute
26 : the parser skeleton itself, you may (at your option) remove this
27 : special exception, which will cause the skeleton and the resulting
28 : Bison output files to be licensed under the GNU General Public
29 : License without this special exception.
30 :
31 : This special exception was added by the Free Software Foundation in
32 : version 2.2 of Bison. */
33 :
34 : /* C LALR(1) parser skeleton written by Richard Stallman, by
35 : simplifying the original so-called "semantic" parser. */
36 :
37 : /* DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
38 : especially those whose name start with YY_ or yy_. They are
39 : private implementation details that can be changed or removed. */
40 :
41 : /* All symbols defined below should begin with yy or YY, to avoid
42 : infringing on user name space. This should be done even for local
43 : variables, as they might otherwise be expanded by user macros.
44 : There are some unavoidable exceptions within include files to
45 : define necessary library symbols; they are noted "INFRINGES ON
46 : USER NAME SPACE" below. */
47 :
48 : /* Identify Bison output, and Bison version. */
49 : #define YYBISON 30705
50 :
51 : /* Bison version string. */
52 : #define YYBISON_VERSION "3.7.5"
53 :
54 : /* Skeleton name. */
55 : #define YYSKELETON_NAME "yacc.c"
56 :
57 : /* Pure parsers. */
58 : #define YYPURE 1
59 :
60 : /* Push parsers. */
61 : #define YYPUSH 0
62 :
63 : /* Pull parsers. */
64 : #define YYPULL 1
65 :
66 :
67 : /* Substitute the variable and function names. */
68 : #define yyparse expr_yyparse
69 : #define yylex expr_yylex
70 : #define yyerror expr_yyerror
71 : #define yydebug expr_yydebug
72 : #define yynerrs expr_yynerrs
73 :
74 : /* First part of user prologue. */
75 : #line 1 "exprparse.y"
76 :
77 : /*-------------------------------------------------------------------------
78 : *
79 : * exprparse.y
80 : * bison grammar for a simple expression syntax
81 : *
82 : * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
83 : * Portions Copyright (c) 1994, Regents of the University of California
84 : *
85 : * src/bin/pgbench/exprparse.y
86 : *
87 : *-------------------------------------------------------------------------
88 : */
89 :
90 : #include "postgres_fe.h"
91 :
92 : #include "pgbench.h"
93 :
94 : #define PGBENCH_NARGS_VARIABLE (-1)
95 : #define PGBENCH_NARGS_CASE (-2)
96 : #define PGBENCH_NARGS_HASH (-3)
97 : #define PGBENCH_NARGS_PERMUTE (-4)
98 :
99 : PgBenchExpr *expr_parse_result;
100 :
101 : static PgBenchExprList *make_elist(PgBenchExpr *expr, PgBenchExprList *list);
102 : static PgBenchExpr *make_null_constant(void);
103 : static PgBenchExpr *make_boolean_constant(bool bval);
104 : static PgBenchExpr *make_integer_constant(int64 ival);
105 : static PgBenchExpr *make_double_constant(double dval);
106 : static PgBenchExpr *make_variable(char *varname);
107 : static PgBenchExpr *make_op(yyscan_t yyscanner, const char *operator,
108 : PgBenchExpr *lexpr, PgBenchExpr *rexpr);
109 : static PgBenchExpr *make_uop(yyscan_t yyscanner, const char *operator, PgBenchExpr *expr);
110 : static int find_func(yyscan_t yyscanner, const char *fname);
111 : static PgBenchExpr *make_func(yyscan_t yyscanner, int fnumber, PgBenchExprList *args);
112 : static PgBenchExpr *make_case(yyscan_t yyscanner, PgBenchExprList *when_then_list, PgBenchExpr *else_part);
113 :
114 :
115 : #line 116 "exprparse.c"
116 :
117 : # ifndef YY_CAST
118 : # ifdef __cplusplus
119 : # define YY_CAST(Type, Val) static_cast<Type> (Val)
120 : # define YY_REINTERPRET_CAST(Type, Val) reinterpret_cast<Type> (Val)
121 : # else
122 : # define YY_CAST(Type, Val) ((Type) (Val))
123 : # define YY_REINTERPRET_CAST(Type, Val) ((Type) (Val))
124 : # endif
125 : # endif
126 : # ifndef YY_NULLPTR
127 : # if defined __cplusplus
128 : # if 201103L <= __cplusplus
129 : # define YY_NULLPTR nullptr
130 : # else
131 : # define YY_NULLPTR 0
132 : # endif
133 : # else
134 : # define YY_NULLPTR ((void*)0)
135 : # endif
136 : # endif
137 :
138 : #include "exprparse.h"
139 : /* Symbol kind. */
140 : enum yysymbol_kind_t
141 : {
142 : YYSYMBOL_YYEMPTY = -2,
143 : YYSYMBOL_YYEOF = 0, /* "end of file" */
144 : YYSYMBOL_YYerror = 1, /* error */
145 : YYSYMBOL_YYUNDEF = 2, /* "invalid token" */
146 : YYSYMBOL_NULL_CONST = 3, /* NULL_CONST */
147 : YYSYMBOL_INTEGER_CONST = 4, /* INTEGER_CONST */
148 : YYSYMBOL_MAXINT_PLUS_ONE_CONST = 5, /* MAXINT_PLUS_ONE_CONST */
149 : YYSYMBOL_DOUBLE_CONST = 6, /* DOUBLE_CONST */
150 : YYSYMBOL_BOOLEAN_CONST = 7, /* BOOLEAN_CONST */
151 : YYSYMBOL_VARIABLE = 8, /* VARIABLE */
152 : YYSYMBOL_FUNCTION = 9, /* FUNCTION */
153 : YYSYMBOL_AND_OP = 10, /* AND_OP */
154 : YYSYMBOL_OR_OP = 11, /* OR_OP */
155 : YYSYMBOL_NOT_OP = 12, /* NOT_OP */
156 : YYSYMBOL_NE_OP = 13, /* NE_OP */
157 : YYSYMBOL_LE_OP = 14, /* LE_OP */
158 : YYSYMBOL_GE_OP = 15, /* GE_OP */
159 : YYSYMBOL_LS_OP = 16, /* LS_OP */
160 : YYSYMBOL_RS_OP = 17, /* RS_OP */
161 : YYSYMBOL_IS_OP = 18, /* IS_OP */
162 : YYSYMBOL_CASE_KW = 19, /* CASE_KW */
163 : YYSYMBOL_WHEN_KW = 20, /* WHEN_KW */
164 : YYSYMBOL_THEN_KW = 21, /* THEN_KW */
165 : YYSYMBOL_ELSE_KW = 22, /* ELSE_KW */
166 : YYSYMBOL_END_KW = 23, /* END_KW */
167 : YYSYMBOL_ISNULL_OP = 24, /* ISNULL_OP */
168 : YYSYMBOL_NOTNULL_OP = 25, /* NOTNULL_OP */
169 : YYSYMBOL_26_ = 26, /* '<' */
170 : YYSYMBOL_27_ = 27, /* '>' */
171 : YYSYMBOL_28_ = 28, /* '=' */
172 : YYSYMBOL_29_ = 29, /* '|' */
173 : YYSYMBOL_30_ = 30, /* '#' */
174 : YYSYMBOL_31_ = 31, /* '&' */
175 : YYSYMBOL_32_ = 32, /* '~' */
176 : YYSYMBOL_33_ = 33, /* '+' */
177 : YYSYMBOL_34_ = 34, /* '-' */
178 : YYSYMBOL_35_ = 35, /* '*' */
179 : YYSYMBOL_36_ = 36, /* '/' */
180 : YYSYMBOL_37_ = 37, /* '%' */
181 : YYSYMBOL_UNARY = 38, /* UNARY */
182 : YYSYMBOL_39_ = 39, /* ',' */
183 : YYSYMBOL_40_ = 40, /* '(' */
184 : YYSYMBOL_41_ = 41, /* ')' */
185 : YYSYMBOL_YYACCEPT = 42, /* $accept */
186 : YYSYMBOL_result = 43, /* result */
187 : YYSYMBOL_elist = 44, /* elist */
188 : YYSYMBOL_expr = 45, /* expr */
189 : YYSYMBOL_when_then_list = 46, /* when_then_list */
190 : YYSYMBOL_case_control = 47, /* case_control */
191 : YYSYMBOL_function = 48 /* function */
192 : };
193 : typedef enum yysymbol_kind_t yysymbol_kind_t;
194 :
195 :
196 :
197 :
198 : #ifdef short
199 : # undef short
200 : #endif
201 :
202 : /* On compilers that do not define __PTRDIFF_MAX__ etc., make sure
203 : <limits.h> and (if available) <stdint.h> are included
204 : so that the code can choose integer types of a good width. */
205 :
206 : #ifndef __PTRDIFF_MAX__
207 : # include <limits.h> /* INFRINGES ON USER NAME SPACE */
208 : # if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
209 : # include <stdint.h> /* INFRINGES ON USER NAME SPACE */
210 : # define YY_STDINT_H
211 : # endif
212 : #endif
213 :
214 : /* Narrow types that promote to a signed type and that can represent a
215 : signed or unsigned integer of at least N bits. In tables they can
216 : save space and decrease cache pressure. Promoting to a signed type
217 : helps avoid bugs in integer arithmetic. */
218 :
219 : #ifdef __INT_LEAST8_MAX__
220 : typedef __INT_LEAST8_TYPE__ yytype_int8;
221 : #elif defined YY_STDINT_H
222 : typedef int_least8_t yytype_int8;
223 : #else
224 : typedef signed char yytype_int8;
225 : #endif
226 :
227 : #ifdef __INT_LEAST16_MAX__
228 : typedef __INT_LEAST16_TYPE__ yytype_int16;
229 : #elif defined YY_STDINT_H
230 : typedef int_least16_t yytype_int16;
231 : #else
232 : typedef short yytype_int16;
233 : #endif
234 :
235 : /* Work around bug in HP-UX 11.23, which defines these macros
236 : incorrectly for preprocessor constants. This workaround can likely
237 : be removed in 2023, as HPE has promised support for HP-UX 11.23
238 : (aka HP-UX 11i v2) only through the end of 2022; see Table 2 of
239 : <https://h20195.www2.hpe.com/V2/getpdf.aspx/4AA4-7673ENW.pdf>. */
240 : #ifdef __hpux
241 : # undef UINT_LEAST8_MAX
242 : # undef UINT_LEAST16_MAX
243 : # define UINT_LEAST8_MAX 255
244 : # define UINT_LEAST16_MAX 65535
245 : #endif
246 :
247 : #if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__
248 : typedef __UINT_LEAST8_TYPE__ yytype_uint8;
249 : #elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \
250 : && UINT_LEAST8_MAX <= INT_MAX)
251 : typedef uint_least8_t yytype_uint8;
252 : #elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX
253 : typedef unsigned char yytype_uint8;
254 : #else
255 : typedef short yytype_uint8;
256 : #endif
257 :
258 : #if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__
259 : typedef __UINT_LEAST16_TYPE__ yytype_uint16;
260 : #elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \
261 : && UINT_LEAST16_MAX <= INT_MAX)
262 : typedef uint_least16_t yytype_uint16;
263 : #elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX
264 : typedef unsigned short yytype_uint16;
265 : #else
266 : typedef int yytype_uint16;
267 : #endif
268 :
269 : #ifndef YYPTRDIFF_T
270 : # if defined __PTRDIFF_TYPE__ && defined __PTRDIFF_MAX__
271 : # define YYPTRDIFF_T __PTRDIFF_TYPE__
272 : # define YYPTRDIFF_MAXIMUM __PTRDIFF_MAX__
273 : # elif defined PTRDIFF_MAX
274 : # ifndef ptrdiff_t
275 : # include <stddef.h> /* INFRINGES ON USER NAME SPACE */
276 : # endif
277 : # define YYPTRDIFF_T ptrdiff_t
278 : # define YYPTRDIFF_MAXIMUM PTRDIFF_MAX
279 : # else
280 : # define YYPTRDIFF_T long
281 : # define YYPTRDIFF_MAXIMUM LONG_MAX
282 : # endif
283 : #endif
284 :
285 : #ifndef YYSIZE_T
286 : # ifdef __SIZE_TYPE__
287 : # define YYSIZE_T __SIZE_TYPE__
288 : # elif defined size_t
289 : # define YYSIZE_T size_t
290 : # elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
291 : # include <stddef.h> /* INFRINGES ON USER NAME SPACE */
292 : # define YYSIZE_T size_t
293 : # else
294 : # define YYSIZE_T unsigned
295 : # endif
296 : #endif
297 :
298 : #define YYSIZE_MAXIMUM \
299 : YY_CAST (YYPTRDIFF_T, \
300 : (YYPTRDIFF_MAXIMUM < YY_CAST (YYSIZE_T, -1) \
301 : ? YYPTRDIFF_MAXIMUM \
302 : : YY_CAST (YYSIZE_T, -1)))
303 :
304 : #define YYSIZEOF(X) YY_CAST (YYPTRDIFF_T, sizeof (X))
305 :
306 :
307 : /* Stored state numbers (used for stacks). */
308 : typedef yytype_int8 yy_state_t;
309 :
310 : /* State numbers in computations. */
311 : typedef int yy_state_fast_t;
312 :
313 : #ifndef YY_
314 : # if defined YYENABLE_NLS && YYENABLE_NLS
315 : # if ENABLE_NLS
316 : # include <libintl.h> /* INFRINGES ON USER NAME SPACE */
317 : # define YY_(Msgid) dgettext ("bison-runtime", Msgid)
318 : # endif
319 : # endif
320 : # ifndef YY_
321 : # define YY_(Msgid) Msgid
322 : # endif
323 : #endif
324 :
325 :
326 : #ifndef YY_ATTRIBUTE_PURE
327 : # if defined __GNUC__ && 2 < __GNUC__ + (96 <= __GNUC_MINOR__)
328 : # define YY_ATTRIBUTE_PURE __attribute__ ((__pure__))
329 : # else
330 : # define YY_ATTRIBUTE_PURE
331 : # endif
332 : #endif
333 :
334 : #ifndef YY_ATTRIBUTE_UNUSED
335 : # if defined __GNUC__ && 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
336 : # define YY_ATTRIBUTE_UNUSED __attribute__ ((__unused__))
337 : # else
338 : # define YY_ATTRIBUTE_UNUSED
339 : # endif
340 : #endif
341 :
342 : /* Suppress unused-variable warnings by "using" E. */
343 : #if ! defined lint || defined __GNUC__
344 : # define YY_USE(E) ((void) (E))
345 : #else
346 : # define YY_USE(E) /* empty */
347 : #endif
348 :
349 : #if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
350 : /* Suppress an incorrect diagnostic about yylval being uninitialized. */
351 : # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
352 : _Pragma ("GCC diagnostic push") \
353 : _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"") \
354 : _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
355 : # define YY_IGNORE_MAYBE_UNINITIALIZED_END \
356 : _Pragma ("GCC diagnostic pop")
357 : #else
358 : # define YY_INITIAL_VALUE(Value) Value
359 : #endif
360 : #ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
361 : # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
362 : # define YY_IGNORE_MAYBE_UNINITIALIZED_END
363 : #endif
364 : #ifndef YY_INITIAL_VALUE
365 : # define YY_INITIAL_VALUE(Value) /* Nothing. */
366 : #endif
367 :
368 : #if defined __cplusplus && defined __GNUC__ && ! defined __ICC && 6 <= __GNUC__
369 : # define YY_IGNORE_USELESS_CAST_BEGIN \
370 : _Pragma ("GCC diagnostic push") \
371 : _Pragma ("GCC diagnostic ignored \"-Wuseless-cast\"")
372 : # define YY_IGNORE_USELESS_CAST_END \
373 : _Pragma ("GCC diagnostic pop")
374 : #endif
375 : #ifndef YY_IGNORE_USELESS_CAST_BEGIN
376 : # define YY_IGNORE_USELESS_CAST_BEGIN
377 : # define YY_IGNORE_USELESS_CAST_END
378 : #endif
379 :
380 :
381 : #define YY_ASSERT(E) ((void) (0 && (E)))
382 :
383 : #if !defined yyoverflow
384 :
385 : /* The parser invokes alloca or malloc; define the necessary symbols. */
386 :
387 : # ifdef YYSTACK_USE_ALLOCA
388 : # if YYSTACK_USE_ALLOCA
389 : # ifdef __GNUC__
390 : # define YYSTACK_ALLOC __builtin_alloca
391 : # elif defined __BUILTIN_VA_ARG_INCR
392 : # include <alloca.h> /* INFRINGES ON USER NAME SPACE */
393 : # elif defined _AIX
394 : # define YYSTACK_ALLOC __alloca
395 : # elif defined _MSC_VER
396 : # include <malloc.h> /* INFRINGES ON USER NAME SPACE */
397 : # define alloca _alloca
398 : # else
399 : # define YYSTACK_ALLOC alloca
400 : # if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
401 : # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
402 : /* Use EXIT_SUCCESS as a witness for stdlib.h. */
403 : # ifndef EXIT_SUCCESS
404 : # define EXIT_SUCCESS 0
405 : # endif
406 : # endif
407 : # endif
408 : # endif
409 : # endif
410 :
411 : # ifdef YYSTACK_ALLOC
412 : /* Pacify GCC's 'empty if-body' warning. */
413 : # define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
414 : # ifndef YYSTACK_ALLOC_MAXIMUM
415 : /* The OS might guarantee only one guard page at the bottom of the stack,
416 : and a page size can be as small as 4096 bytes. So we cannot safely
417 : invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
418 : to allow for a few compiler-allocated temporary stack slots. */
419 : # define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
420 : # endif
421 : # else
422 : # define YYSTACK_ALLOC YYMALLOC
423 : # define YYSTACK_FREE YYFREE
424 : # ifndef YYSTACK_ALLOC_MAXIMUM
425 : # define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
426 : # endif
427 : # if (defined __cplusplus && ! defined EXIT_SUCCESS \
428 : && ! ((defined YYMALLOC || defined malloc) \
429 : && (defined YYFREE || defined free)))
430 : # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
431 : # ifndef EXIT_SUCCESS
432 : # define EXIT_SUCCESS 0
433 : # endif
434 : # endif
435 : # ifndef YYMALLOC
436 : # define YYMALLOC malloc
437 : # if ! defined malloc && ! defined EXIT_SUCCESS
438 : void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
439 : # endif
440 : # endif
441 : # ifndef YYFREE
442 : # define YYFREE free
443 : # if ! defined free && ! defined EXIT_SUCCESS
444 : void free (void *); /* INFRINGES ON USER NAME SPACE */
445 : # endif
446 : # endif
447 : # endif
448 : #endif /* !defined yyoverflow */
449 :
450 : #if (! defined yyoverflow \
451 : && (! defined __cplusplus \
452 : || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
453 :
454 : /* A type that is properly aligned for any stack member. */
455 : union yyalloc
456 : {
457 : yy_state_t yyss_alloc;
458 : YYSTYPE yyvs_alloc;
459 : };
460 :
461 : /* The size of the maximum gap between one aligned stack and the next. */
462 : # define YYSTACK_GAP_MAXIMUM (YYSIZEOF (union yyalloc) - 1)
463 :
464 : /* The size of an array large to enough to hold all stacks, each with
465 : N elements. */
466 : # define YYSTACK_BYTES(N) \
467 : ((N) * (YYSIZEOF (yy_state_t) + YYSIZEOF (YYSTYPE)) \
468 : + YYSTACK_GAP_MAXIMUM)
469 :
470 : # define YYCOPY_NEEDED 1
471 :
472 : /* Relocate STACK from its old location to the new one. The
473 : local variables YYSIZE and YYSTACKSIZE give the old and new number of
474 : elements in the stack, and YYPTR gives the new location of the
475 : stack. Advance YYPTR to a properly aligned location for the next
476 : stack. */
477 : # define YYSTACK_RELOCATE(Stack_alloc, Stack) \
478 : do \
479 : { \
480 : YYPTRDIFF_T yynewbytes; \
481 : YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
482 : Stack = &yyptr->Stack_alloc; \
483 : yynewbytes = yystacksize * YYSIZEOF (*Stack) + YYSTACK_GAP_MAXIMUM; \
484 : yyptr += yynewbytes / YYSIZEOF (*yyptr); \
485 : } \
486 : while (0)
487 :
488 : #endif
489 :
490 : #if defined YYCOPY_NEEDED && YYCOPY_NEEDED
491 : /* Copy COUNT objects from SRC to DST. The source and destination do
492 : not overlap. */
493 : # ifndef YYCOPY
494 : # if defined __GNUC__ && 1 < __GNUC__
495 : # define YYCOPY(Dst, Src, Count) \
496 : __builtin_memcpy (Dst, Src, YY_CAST (YYSIZE_T, (Count)) * sizeof (*(Src)))
497 : # else
498 : # define YYCOPY(Dst, Src, Count) \
499 : do \
500 : { \
501 : YYPTRDIFF_T yyi; \
502 : for (yyi = 0; yyi < (Count); yyi++) \
503 : (Dst)[yyi] = (Src)[yyi]; \
504 : } \
505 : while (0)
506 : # endif
507 : # endif
508 : #endif /* !YYCOPY_NEEDED */
509 :
510 : /* YYFINAL -- State number of the termination state. */
511 : #define YYFINAL 25
512 : /* YYLAST -- Last index in YYTABLE. */
513 : #define YYLAST 320
514 :
515 : /* YYNTOKENS -- Number of terminals. */
516 : #define YYNTOKENS 42
517 : /* YYNNTS -- Number of nonterminals. */
518 : #define YYNNTS 7
519 : /* YYNRULES -- Number of rules. */
520 : #define YYNRULES 47
521 : /* YYNSTATES -- Number of states. */
522 : #define YYNSTATES 88
523 :
524 : /* YYMAXUTOK -- Last valid token kind. */
525 : #define YYMAXUTOK 281
526 :
527 :
528 : /* YYTRANSLATE(TOKEN-NUM) -- Symbol number corresponding to TOKEN-NUM
529 : as returned by yylex, with out-of-bounds checking. */
530 : #define YYTRANSLATE(YYX) \
531 : (0 <= (YYX) && (YYX) <= YYMAXUTOK \
532 : ? YY_CAST (yysymbol_kind_t, yytranslate[YYX]) \
533 : : YYSYMBOL_YYUNDEF)
534 :
535 : /* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
536 : as returned by yylex. */
537 : static const yytype_int8 yytranslate[] =
538 : {
539 : 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
540 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
541 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
542 : 2, 2, 2, 2, 2, 30, 2, 37, 31, 2,
543 : 40, 41, 35, 33, 39, 34, 2, 36, 2, 2,
544 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
545 : 26, 28, 27, 2, 2, 2, 2, 2, 2, 2,
546 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
547 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
548 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
549 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
550 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
551 : 2, 2, 2, 2, 29, 2, 32, 2, 2, 2,
552 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
553 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
554 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
555 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
556 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
557 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
558 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
559 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
560 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
561 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
562 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
563 : 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
564 : 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
565 : 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
566 : 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
567 : 25, 38
568 : };
569 :
570 : #if YYDEBUG
571 : /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
572 : static const yytype_uint8 yyrline[] =
573 : {
574 : 0, 83, 83, 88, 89, 90, 93, 94, 96, 99,
575 : 102, 104, 105, 106, 107, 108, 109, 110, 111, 112,
576 : 113, 114, 115, 116, 117, 118, 119, 120, 121, 122,
577 : 124, 125, 129, 130, 135, 139, 145, 146, 147, 148,
578 : 150, 151, 152, 156, 157, 160, 161, 163
579 : };
580 : #endif
581 :
582 : /** Accessing symbol of state STATE. */
583 : #define YY_ACCESSING_SYMBOL(State) YY_CAST (yysymbol_kind_t, yystos[State])
584 :
585 : #if YYDEBUG || 0
586 : /* The user-facing name of the symbol whose (internal) number is
587 : YYSYMBOL. No bounds checking. */
588 : static const char *yysymbol_name (yysymbol_kind_t yysymbol) YY_ATTRIBUTE_UNUSED;
589 :
590 : /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
591 : First, the terminals, then, starting at YYNTOKENS, nonterminals. */
592 : static const char *const yytname[] =
593 : {
594 : "\"end of file\"", "error", "\"invalid token\"", "NULL_CONST",
595 : "INTEGER_CONST", "MAXINT_PLUS_ONE_CONST", "DOUBLE_CONST",
596 : "BOOLEAN_CONST", "VARIABLE", "FUNCTION", "AND_OP", "OR_OP", "NOT_OP",
597 : "NE_OP", "LE_OP", "GE_OP", "LS_OP", "RS_OP", "IS_OP", "CASE_KW",
598 : "WHEN_KW", "THEN_KW", "ELSE_KW", "END_KW", "ISNULL_OP", "NOTNULL_OP",
599 : "'<'", "'>'", "'='", "'|'", "'#'", "'&'", "'~'", "'+'", "'-'", "'*'",
600 : "'/'", "'%'", "UNARY", "','", "'('", "')'", "$accept", "result", "elist",
601 : "expr", "when_then_list", "case_control", "function", YY_NULLPTR
602 : };
603 :
604 : static const char *
605 : yysymbol_name (yysymbol_kind_t yysymbol)
606 : {
607 : return yytname[yysymbol];
608 : }
609 : #endif
610 :
611 : #ifdef YYPRINT
612 : /* YYTOKNUM[NUM] -- (External) token number corresponding to the
613 : (internal) symbol number NUM (which must be that of a token). */
614 : static const yytype_int16 yytoknum[] =
615 : {
616 : 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
617 : 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
618 : 275, 276, 277, 278, 279, 280, 60, 62, 61, 124,
619 : 35, 38, 126, 43, 45, 42, 47, 37, 281, 44,
620 : 40, 41
621 : };
622 : #endif
623 :
624 : #define YYPACT_NINF (-33)
625 :
626 : #define yypact_value_is_default(Yyn) \
627 : ((Yyn) == YYPACT_NINF)
628 :
629 : #define YYTABLE_NINF (-1)
630 :
631 : #define yytable_value_is_error(Yyn) \
632 : ((Yyn) == YYTABLE_NINF)
633 :
634 : /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
635 : STATE-NUM. */
636 : static const yytype_int16 yypact[] =
637 : {
638 : 64, -33, -33, -33, -33, -33, -33, 64, -19, 64,
639 : 64, 46, 64, 13, 205, -33, -22, 258, 64, -6,
640 : 11, -33, -33, -33, 92, -33, 64, 64, 64, 64,
641 : 64, 64, 64, 3, -33, -33, 64, 64, 64, 64,
642 : 64, 64, 64, 64, 64, 64, 64, 64, 121, 64,
643 : 64, -33, -33, 258, 233, 283, 283, 283, 11, 11,
644 : -33, -33, 5, 283, 283, 283, 11, 11, 11, -9,
645 : -9, -33, -33, -33, -32, 205, 64, 149, 177, -33,
646 : -33, 64, -33, 205, 64, -33, 205, 205
647 : };
648 :
649 : /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
650 : Performed when YYTABLE does not specify something else to do. Zero
651 : means the default is an error. */
652 : static const yytype_int8 yydefact[] =
653 : {
654 : 0, 36, 38, 39, 37, 40, 47, 0, 0, 0,
655 : 0, 0, 0, 0, 2, 42, 0, 11, 0, 0,
656 : 10, 7, 9, 8, 0, 1, 0, 0, 0, 0,
657 : 0, 0, 0, 0, 30, 31, 0, 0, 0, 0,
658 : 0, 0, 0, 0, 0, 0, 0, 3, 0, 0,
659 : 0, 45, 6, 28, 29, 22, 18, 20, 26, 27,
660 : 32, 34, 0, 17, 19, 21, 24, 25, 23, 12,
661 : 13, 14, 15, 16, 0, 4, 0, 0, 0, 33,
662 : 35, 0, 41, 44, 0, 46, 5, 43
663 : };
664 :
665 : /* YYPGOTO[NTERM-NUM]. */
666 : static const yytype_int8 yypgoto[] =
667 : {
668 : -33, -33, -33, -7, -33, -33, -33
669 : };
670 :
671 : /* YYDEFGOTO[NTERM-NUM]. */
672 : static const yytype_int8 yydefgoto[] =
673 : {
674 : 0, 13, 74, 14, 19, 15, 16
675 : };
676 :
677 : /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If
678 : positive, shift that token. If negative, reduce the rule whose
679 : number is the opposite. If YYTABLE_NINF, syntax error. */
680 : static const yytype_int8 yytable[] =
681 : {
682 : 17, 18, 20, 21, 23, 24, 60, 81, 79, 82,
683 : 61, 48, 80, 25, 49, 62, 50, 51, 47, 53,
684 : 54, 55, 56, 57, 58, 59, 44, 45, 46, 63,
685 : 64, 65, 66, 67, 68, 69, 70, 71, 72, 73,
686 : 75, 0, 77, 78, 42, 43, 44, 45, 46, 1,
687 : 2, 22, 3, 4, 5, 6, 0, 0, 7, 0,
688 : 0, 0, 0, 0, 0, 8, 0, 1, 2, 83,
689 : 3, 4, 5, 6, 86, 0, 7, 87, 9, 10,
690 : 11, 0, 0, 8, 0, 0, 12, 0, 0, 0,
691 : 0, 0, 0, 0, 0, 0, 9, 10, 11, 0,
692 : 0, 0, 26, 27, 12, 28, 29, 30, 31, 32,
693 : 33, 0, 0, 0, 0, 0, 34, 35, 36, 37,
694 : 38, 39, 40, 41, 0, 42, 43, 44, 45, 46,
695 : 0, 26, 27, 52, 28, 29, 30, 31, 32, 33,
696 : 0, 0, 76, 0, 0, 34, 35, 36, 37, 38,
697 : 39, 40, 41, 0, 42, 43, 44, 45, 46, 26,
698 : 27, 0, 28, 29, 30, 31, 32, 33, 0, 0,
699 : 84, 0, 0, 34, 35, 36, 37, 38, 39, 40,
700 : 41, 0, 42, 43, 44, 45, 46, 26, 27, 0,
701 : 28, 29, 30, 31, 32, 33, 0, 0, 0, 0,
702 : 85, 34, 35, 36, 37, 38, 39, 40, 41, 0,
703 : 42, 43, 44, 45, 46, 26, 27, 0, 28, 29,
704 : 30, 31, 32, 33, 0, 0, 0, 0, 0, 34,
705 : 35, 36, 37, 38, 39, 40, 41, 0, 42, 43,
706 : 44, 45, 46, 26, 0, 0, 28, 29, 30, 31,
707 : 32, 33, 0, 0, 0, 0, 0, 34, 35, 36,
708 : 37, 38, 39, 40, 41, 0, 42, 43, 44, 45,
709 : 46, 28, 29, 30, 31, 32, 33, 0, 0, 0,
710 : 0, 0, 34, 35, 36, 37, 38, 39, 40, 41,
711 : 0, 42, 43, 44, 45, 46, -1, -1, -1, 31,
712 : 32, 0, 0, 0, 0, 0, 0, 0, 0, -1,
713 : -1, -1, 39, 40, 41, 0, 42, 43, 44, 45,
714 : 46
715 : };
716 :
717 : static const yytype_int8 yycheck[] =
718 : {
719 : 7, 20, 9, 10, 11, 12, 3, 39, 3, 41,
720 : 7, 18, 7, 0, 20, 12, 22, 23, 40, 26,
721 : 27, 28, 29, 30, 31, 32, 35, 36, 37, 36,
722 : 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
723 : 47, -1, 49, 50, 33, 34, 35, 36, 37, 3,
724 : 4, 5, 6, 7, 8, 9, -1, -1, 12, -1,
725 : -1, -1, -1, -1, -1, 19, -1, 3, 4, 76,
726 : 6, 7, 8, 9, 81, -1, 12, 84, 32, 33,
727 : 34, -1, -1, 19, -1, -1, 40, -1, -1, -1,
728 : -1, -1, -1, -1, -1, -1, 32, 33, 34, -1,
729 : -1, -1, 10, 11, 40, 13, 14, 15, 16, 17,
730 : 18, -1, -1, -1, -1, -1, 24, 25, 26, 27,
731 : 28, 29, 30, 31, -1, 33, 34, 35, 36, 37,
732 : -1, 10, 11, 41, 13, 14, 15, 16, 17, 18,
733 : -1, -1, 21, -1, -1, 24, 25, 26, 27, 28,
734 : 29, 30, 31, -1, 33, 34, 35, 36, 37, 10,
735 : 11, -1, 13, 14, 15, 16, 17, 18, -1, -1,
736 : 21, -1, -1, 24, 25, 26, 27, 28, 29, 30,
737 : 31, -1, 33, 34, 35, 36, 37, 10, 11, -1,
738 : 13, 14, 15, 16, 17, 18, -1, -1, -1, -1,
739 : 23, 24, 25, 26, 27, 28, 29, 30, 31, -1,
740 : 33, 34, 35, 36, 37, 10, 11, -1, 13, 14,
741 : 15, 16, 17, 18, -1, -1, -1, -1, -1, 24,
742 : 25, 26, 27, 28, 29, 30, 31, -1, 33, 34,
743 : 35, 36, 37, 10, -1, -1, 13, 14, 15, 16,
744 : 17, 18, -1, -1, -1, -1, -1, 24, 25, 26,
745 : 27, 28, 29, 30, 31, -1, 33, 34, 35, 36,
746 : 37, 13, 14, 15, 16, 17, 18, -1, -1, -1,
747 : -1, -1, 24, 25, 26, 27, 28, 29, 30, 31,
748 : -1, 33, 34, 35, 36, 37, 13, 14, 15, 16,
749 : 17, -1, -1, -1, -1, -1, -1, -1, -1, 26,
750 : 27, 28, 29, 30, 31, -1, 33, 34, 35, 36,
751 : 37
752 : };
753 :
754 : /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
755 : symbol of state STATE-NUM. */
756 : static const yytype_int8 yystos[] =
757 : {
758 : 0, 3, 4, 6, 7, 8, 9, 12, 19, 32,
759 : 33, 34, 40, 43, 45, 47, 48, 45, 20, 46,
760 : 45, 45, 5, 45, 45, 0, 10, 11, 13, 14,
761 : 15, 16, 17, 18, 24, 25, 26, 27, 28, 29,
762 : 30, 31, 33, 34, 35, 36, 37, 40, 45, 20,
763 : 22, 23, 41, 45, 45, 45, 45, 45, 45, 45,
764 : 3, 7, 12, 45, 45, 45, 45, 45, 45, 45,
765 : 45, 45, 45, 45, 44, 45, 21, 45, 45, 3,
766 : 7, 39, 41, 45, 21, 23, 45, 45
767 : };
768 :
769 : /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
770 : static const yytype_int8 yyr1[] =
771 : {
772 : 0, 42, 43, 44, 44, 44, 45, 45, 45, 45,
773 : 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
774 : 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
775 : 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
776 : 45, 45, 45, 46, 46, 47, 47, 48
777 : };
778 :
779 : /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN. */
780 : static const yytype_int8 yyr2[] =
781 : {
782 : 0, 2, 1, 0, 1, 3, 3, 2, 2, 2,
783 : 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
784 : 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
785 : 2, 2, 3, 4, 3, 4, 1, 1, 1, 1,
786 : 1, 4, 1, 5, 4, 3, 5, 1
787 : };
788 :
789 :
790 : enum { YYENOMEM = -2 };
791 :
792 : #define yyerrok (yyerrstatus = 0)
793 : #define yyclearin (yychar = YYEMPTY)
794 :
795 : #define YYACCEPT goto yyacceptlab
796 : #define YYABORT goto yyabortlab
797 : #define YYERROR goto yyerrorlab
798 :
799 :
800 : #define YYRECOVERING() (!!yyerrstatus)
801 :
802 : #define YYBACKUP(Token, Value) \
803 : do \
804 : if (yychar == YYEMPTY) \
805 : { \
806 : yychar = (Token); \
807 : yylval = (Value); \
808 : YYPOPSTACK (yylen); \
809 : yystate = *yyssp; \
810 : goto yybackup; \
811 : } \
812 : else \
813 : { \
814 : yyerror (yyscanner, YY_("syntax error: cannot back up")); \
815 : YYERROR; \
816 : } \
817 : while (0)
818 :
819 : /* Backward compatibility with an undocumented macro.
820 : Use YYerror or YYUNDEF. */
821 : #define YYERRCODE YYUNDEF
822 :
823 :
824 : /* Enable debugging if requested. */
825 : #if YYDEBUG
826 :
827 : # ifndef YYFPRINTF
828 : # include <stdio.h> /* INFRINGES ON USER NAME SPACE */
829 : # define YYFPRINTF fprintf
830 : # endif
831 :
832 : # define YYDPRINTF(Args) \
833 : do { \
834 : if (yydebug) \
835 : YYFPRINTF Args; \
836 : } while (0)
837 :
838 : /* This macro is provided for backward compatibility. */
839 : # ifndef YY_LOCATION_PRINT
840 : # define YY_LOCATION_PRINT(File, Loc) ((void) 0)
841 : # endif
842 :
843 :
844 : # define YY_SYMBOL_PRINT(Title, Kind, Value, Location) \
845 : do { \
846 : if (yydebug) \
847 : { \
848 : YYFPRINTF (stderr, "%s ", Title); \
849 : yy_symbol_print (stderr, \
850 : Kind, Value, yyscanner); \
851 : YYFPRINTF (stderr, "\n"); \
852 : } \
853 : } while (0)
854 :
855 :
856 : /*-----------------------------------.
857 : | Print this symbol's value on YYO. |
858 : `-----------------------------------*/
859 :
860 : static void
861 : yy_symbol_value_print (FILE *yyo,
862 : yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep, yyscan_t yyscanner)
863 : {
864 : FILE *yyoutput = yyo;
865 : YY_USE (yyoutput);
866 : YY_USE (yyscanner);
867 : if (!yyvaluep)
868 : return;
869 : # ifdef YYPRINT
870 : if (yykind < YYNTOKENS)
871 : YYPRINT (yyo, yytoknum[yykind], *yyvaluep);
872 : # endif
873 : YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
874 : YY_USE (yykind);
875 : YY_IGNORE_MAYBE_UNINITIALIZED_END
876 : }
877 :
878 :
879 : /*---------------------------.
880 : | Print this symbol on YYO. |
881 : `---------------------------*/
882 :
883 : static void
884 : yy_symbol_print (FILE *yyo,
885 : yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep, yyscan_t yyscanner)
886 : {
887 : YYFPRINTF (yyo, "%s %s (",
888 : yykind < YYNTOKENS ? "token" : "nterm", yysymbol_name (yykind));
889 :
890 : yy_symbol_value_print (yyo, yykind, yyvaluep, yyscanner);
891 : YYFPRINTF (yyo, ")");
892 : }
893 :
894 : /*------------------------------------------------------------------.
895 : | yy_stack_print -- Print the state stack from its BOTTOM up to its |
896 : | TOP (included). |
897 : `------------------------------------------------------------------*/
898 :
899 : static void
900 : yy_stack_print (yy_state_t *yybottom, yy_state_t *yytop)
901 : {
902 : YYFPRINTF (stderr, "Stack now");
903 : for (; yybottom <= yytop; yybottom++)
904 : {
905 : int yybot = *yybottom;
906 : YYFPRINTF (stderr, " %d", yybot);
907 : }
908 : YYFPRINTF (stderr, "\n");
909 : }
910 :
911 : # define YY_STACK_PRINT(Bottom, Top) \
912 : do { \
913 : if (yydebug) \
914 : yy_stack_print ((Bottom), (Top)); \
915 : } while (0)
916 :
917 :
918 : /*------------------------------------------------.
919 : | Report that the YYRULE is going to be reduced. |
920 : `------------------------------------------------*/
921 :
922 : static void
923 : yy_reduce_print (yy_state_t *yyssp, YYSTYPE *yyvsp,
924 : int yyrule, yyscan_t yyscanner)
925 : {
926 : int yylno = yyrline[yyrule];
927 : int yynrhs = yyr2[yyrule];
928 : int yyi;
929 : YYFPRINTF (stderr, "Reducing stack by rule %d (line %d):\n",
930 : yyrule - 1, yylno);
931 : /* The symbols being reduced. */
932 : for (yyi = 0; yyi < yynrhs; yyi++)
933 : {
934 : YYFPRINTF (stderr, " $%d = ", yyi + 1);
935 : yy_symbol_print (stderr,
936 : YY_ACCESSING_SYMBOL (+yyssp[yyi + 1 - yynrhs]),
937 : &yyvsp[(yyi + 1) - (yynrhs)], yyscanner);
938 : YYFPRINTF (stderr, "\n");
939 : }
940 : }
941 :
942 : # define YY_REDUCE_PRINT(Rule) \
943 : do { \
944 : if (yydebug) \
945 : yy_reduce_print (yyssp, yyvsp, Rule, yyscanner); \
946 : } while (0)
947 :
948 : /* Nonzero means print parse trace. It is left uninitialized so that
949 : multiple parsers can coexist. */
950 : int yydebug;
951 : #else /* !YYDEBUG */
952 : # define YYDPRINTF(Args) ((void) 0)
953 : # define YY_SYMBOL_PRINT(Title, Kind, Value, Location)
954 : # define YY_STACK_PRINT(Bottom, Top)
955 : # define YY_REDUCE_PRINT(Rule)
956 : #endif /* !YYDEBUG */
957 :
958 :
959 : /* YYINITDEPTH -- initial size of the parser's stacks. */
960 : #ifndef YYINITDEPTH
961 : # define YYINITDEPTH 200
962 : #endif
963 :
964 : /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
965 : if the built-in stack extension method is used).
966 :
967 : Do not make this value too large; the results are undefined if
968 : YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
969 : evaluated with infinite-precision integer arithmetic. */
970 :
971 : #ifndef YYMAXDEPTH
972 : # define YYMAXDEPTH 10000
973 : #endif
974 :
975 :
976 :
977 :
978 :
979 :
980 : /*-----------------------------------------------.
981 : | Release the memory associated to this symbol. |
982 : `-----------------------------------------------*/
983 :
984 : static void
985 1468 : yydestruct (const char *yymsg,
986 : yysymbol_kind_t yykind, YYSTYPE *yyvaluep, yyscan_t yyscanner)
987 : {
988 : YY_USE (yyvaluep);
989 : YY_USE (yyscanner);
990 1468 : if (!yymsg)
991 0 : yymsg = "Deleting";
992 : YY_SYMBOL_PRINT (yymsg, yykind, yyvaluep, yylocationp);
993 :
994 : YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
995 : YY_USE (yykind);
996 : YY_IGNORE_MAYBE_UNINITIALIZED_END
997 1468 : }
998 :
999 :
1000 :
1001 :
1002 :
1003 :
1004 : /*----------.
1005 : | yyparse. |
1006 : `----------*/
1007 :
1008 : int
1009 772 : yyparse (yyscan_t yyscanner)
1010 : {
1011 : /* Lookahead token kind. */
1012 : int yychar;
1013 :
1014 :
1015 : /* The semantic value of the lookahead symbol. */
1016 : /* Default value used for initialization, for pacifying older GCCs
1017 : or non-GCC compilers. */
1018 : YY_INITIAL_VALUE (static YYSTYPE yyval_default;)
1019 : YYSTYPE yylval YY_INITIAL_VALUE (= yyval_default);
1020 :
1021 : /* Number of syntax errors so far. */
1022 772 : int yynerrs = 0;
1023 :
1024 772 : yy_state_fast_t yystate = 0;
1025 : /* Number of tokens to shift before error messages enabled. */
1026 772 : int yyerrstatus = 0;
1027 :
1028 : /* Refer to the stacks through separate pointers, to allow yyoverflow
1029 : to reallocate them elsewhere. */
1030 :
1031 : /* Their size. */
1032 772 : YYPTRDIFF_T yystacksize = YYINITDEPTH;
1033 :
1034 : /* The state stack: array, bottom, top. */
1035 : yy_state_t yyssa[YYINITDEPTH];
1036 772 : yy_state_t *yyss = yyssa;
1037 772 : yy_state_t *yyssp = yyss;
1038 :
1039 : /* The semantic value stack: array, bottom, top. */
1040 : YYSTYPE yyvsa[YYINITDEPTH];
1041 772 : YYSTYPE *yyvs = yyvsa;
1042 772 : YYSTYPE *yyvsp = yyvs;
1043 :
1044 : int yyn;
1045 : /* The return value of yyparse. */
1046 : int yyresult;
1047 : /* Lookahead symbol kind. */
1048 772 : yysymbol_kind_t yytoken = YYSYMBOL_YYEMPTY;
1049 : /* The variables used to return semantic value and location from the
1050 : action routines. */
1051 : YYSTYPE yyval;
1052 :
1053 :
1054 :
1055 : #define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
1056 :
1057 : /* The number of symbols on the RHS of the reduced rule.
1058 : Keep to zero when no symbol should be popped. */
1059 772 : int yylen = 0;
1060 :
1061 : YYDPRINTF ((stderr, "Starting parse\n"));
1062 :
1063 772 : yychar = YYEMPTY; /* Cause a token to be read. */
1064 772 : goto yysetstate;
1065 :
1066 :
1067 : /*------------------------------------------------------------.
1068 : | yynewstate -- push a new state, which is found in yystate. |
1069 : `------------------------------------------------------------*/
1070 14706 : yynewstate:
1071 : /* In all cases, when you get here, the value and location stacks
1072 : have just been pushed. So pushing a state here evens the stacks. */
1073 14706 : yyssp++;
1074 :
1075 :
1076 : /*--------------------------------------------------------------------.
1077 : | yysetstate -- set current state (the top of the stack) to yystate. |
1078 : `--------------------------------------------------------------------*/
1079 15478 : yysetstate:
1080 : YYDPRINTF ((stderr, "Entering state %d\n", yystate));
1081 : YY_ASSERT (0 <= yystate && yystate < YYNSTATES);
1082 : YY_IGNORE_USELESS_CAST_BEGIN
1083 15478 : *yyssp = YY_CAST (yy_state_t, yystate);
1084 : YY_IGNORE_USELESS_CAST_END
1085 : YY_STACK_PRINT (yyss, yyssp);
1086 :
1087 15478 : if (yyss + yystacksize - 1 <= yyssp)
1088 : #if !defined yyoverflow && !defined YYSTACK_RELOCATE
1089 : goto yyexhaustedlab;
1090 : #else
1091 : {
1092 : /* Get the current used size of the three stacks, in elements. */
1093 0 : YYPTRDIFF_T yysize = yyssp - yyss + 1;
1094 :
1095 : # if defined yyoverflow
1096 : {
1097 : /* Give user a chance to reallocate the stack. Use copies of
1098 : these so that the &'s don't force the real ones into
1099 : memory. */
1100 : yy_state_t *yyss1 = yyss;
1101 : YYSTYPE *yyvs1 = yyvs;
1102 :
1103 : /* Each stack pointer address is followed by the size of the
1104 : data in use in that stack, in bytes. This used to be a
1105 : conditional around just the two extra args, but that might
1106 : be undefined if yyoverflow is a macro. */
1107 : yyoverflow (YY_("memory exhausted"),
1108 : &yyss1, yysize * YYSIZEOF (*yyssp),
1109 : &yyvs1, yysize * YYSIZEOF (*yyvsp),
1110 : &yystacksize);
1111 : yyss = yyss1;
1112 : yyvs = yyvs1;
1113 : }
1114 : # else /* defined YYSTACK_RELOCATE */
1115 : /* Extend the stack our own way. */
1116 0 : if (YYMAXDEPTH <= yystacksize)
1117 0 : goto yyexhaustedlab;
1118 0 : yystacksize *= 2;
1119 0 : if (YYMAXDEPTH < yystacksize)
1120 0 : yystacksize = YYMAXDEPTH;
1121 :
1122 : {
1123 0 : yy_state_t *yyss1 = yyss;
1124 : union yyalloc *yyptr =
1125 0 : YY_CAST (union yyalloc *,
1126 : YYSTACK_ALLOC (YY_CAST (YYSIZE_T, YYSTACK_BYTES (yystacksize))));
1127 0 : if (! yyptr)
1128 0 : goto yyexhaustedlab;
1129 0 : YYSTACK_RELOCATE (yyss_alloc, yyss);
1130 0 : YYSTACK_RELOCATE (yyvs_alloc, yyvs);
1131 : # undef YYSTACK_RELOCATE
1132 0 : if (yyss1 != yyssa)
1133 0 : YYSTACK_FREE (yyss1);
1134 : }
1135 : # endif
1136 :
1137 0 : yyssp = yyss + yysize - 1;
1138 0 : yyvsp = yyvs + yysize - 1;
1139 :
1140 : YY_IGNORE_USELESS_CAST_BEGIN
1141 : YYDPRINTF ((stderr, "Stack size increased to %ld\n",
1142 : YY_CAST (long, yystacksize)));
1143 : YY_IGNORE_USELESS_CAST_END
1144 :
1145 0 : if (yyss + yystacksize - 1 <= yyssp)
1146 0 : YYABORT;
1147 : }
1148 : #endif /* !defined yyoverflow && !defined YYSTACK_RELOCATE */
1149 :
1150 15478 : if (yystate == YYFINAL)
1151 734 : YYACCEPT;
1152 :
1153 14744 : goto yybackup;
1154 :
1155 :
1156 : /*-----------.
1157 : | yybackup. |
1158 : `-----------*/
1159 14744 : yybackup:
1160 : /* Do appropriate processing given the current state. Read a
1161 : lookahead token if we need one and don't already have one. */
1162 :
1163 : /* First try to decide what to do without reference to lookahead token. */
1164 14744 : yyn = yypact[yystate];
1165 14744 : if (yypact_value_is_default (yyn))
1166 4612 : goto yydefault;
1167 :
1168 : /* Not known => get a lookahead token if don't already have one. */
1169 :
1170 : /* YYCHAR is either empty, or end-of-input, or a valid lookahead. */
1171 10132 : if (yychar == YYEMPTY)
1172 : {
1173 : YYDPRINTF ((stderr, "Reading a token\n"));
1174 7476 : yychar = yylex (&yylval, yyscanner);
1175 : }
1176 :
1177 10124 : if (yychar <= YYEOF)
1178 : {
1179 1508 : yychar = YYEOF;
1180 1508 : yytoken = YYSYMBOL_YYEOF;
1181 : YYDPRINTF ((stderr, "Now at end of input.\n"));
1182 : }
1183 8616 : else if (yychar == YYerror)
1184 : {
1185 : /* The scanner already issued an error message, process directly
1186 : to error recovery. But do not keep the error token as
1187 : lookahead, it is too special and may lead us to an endless
1188 : loop in error recovery. */
1189 0 : yychar = YYUNDEF;
1190 0 : yytoken = YYSYMBOL_YYerror;
1191 0 : goto yyerrlab1;
1192 : }
1193 : else
1194 : {
1195 8616 : yytoken = YYTRANSLATE (yychar);
1196 : YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
1197 : }
1198 :
1199 : /* If the proper action on seeing token YYTOKEN is to reduce or to
1200 : detect an error, take that action. */
1201 10124 : yyn += yytoken;
1202 10124 : if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
1203 2668 : goto yydefault;
1204 7456 : yyn = yytable[yyn];
1205 7456 : if (yyn <= 0)
1206 : {
1207 0 : if (yytable_value_is_error (yyn))
1208 0 : goto yyerrlab;
1209 0 : yyn = -yyn;
1210 0 : goto yyreduce;
1211 : }
1212 :
1213 : /* Count tokens shifted since error; after three, turn off error
1214 : status. */
1215 7456 : if (yyerrstatus)
1216 0 : yyerrstatus--;
1217 :
1218 : /* Shift the lookahead token. */
1219 : YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
1220 7456 : yystate = yyn;
1221 : YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
1222 7456 : *++yyvsp = yylval;
1223 : YY_IGNORE_MAYBE_UNINITIALIZED_END
1224 :
1225 : /* Discard the shifted token. */
1226 7456 : yychar = YYEMPTY;
1227 7456 : goto yynewstate;
1228 :
1229 :
1230 : /*-----------------------------------------------------------.
1231 : | yydefault -- do the default action for the current state. |
1232 : `-----------------------------------------------------------*/
1233 7280 : yydefault:
1234 7280 : yyn = yydefact[yystate];
1235 7280 : if (yyn == 0)
1236 12 : goto yyerrlab;
1237 7268 : goto yyreduce;
1238 :
1239 :
1240 : /*-----------------------------.
1241 : | yyreduce -- do a reduction. |
1242 : `-----------------------------*/
1243 7268 : yyreduce:
1244 : /* yyn is the number of a rule to reduce with. */
1245 7268 : yylen = yyr2[yyn];
1246 :
1247 : /* If YYLEN is nonzero, implement the default value of the action:
1248 : '$$ = $1'.
1249 :
1250 : Otherwise, the following line sets YYVAL to garbage.
1251 : This behavior is undocumented and Bison
1252 : users should not rely upon it. Assigning to YYVAL
1253 : unconditionally makes the parser a bit smaller, and it avoids a
1254 : GCC warning that YYVAL may be used uninitialized. */
1255 7268 : yyval = yyvsp[1-yylen];
1256 :
1257 :
1258 : YY_REDUCE_PRINT (yyn);
1259 7268 : switch (yyn)
1260 : {
1261 734 : case 2: /* result: expr */
1262 : #line 83 "exprparse.y"
1263 : {
1264 : expr_parse_result = (yyvsp[0].expr);
1265 : (void) yynerrs; /* suppress compiler warning */
1266 : }
1267 : #line 1268 "exprparse.c"
1268 734 : break;
1269 :
1270 10 : case 3: /* elist: %empty */
1271 : #line 88 "exprparse.y"
1272 : { (yyval.elist) = NULL; }
1273 : #line 1274 "exprparse.c"
1274 10 : break;
1275 :
1276 786 : case 4: /* elist: expr */
1277 : #line 89 "exprparse.y"
1278 : { (yyval.elist) = make_elist((yyvsp[0].expr), NULL); }
1279 : #line 1280 "exprparse.c"
1280 786 : break;
1281 :
1282 686 : case 5: /* elist: elist ',' expr */
1283 : #line 90 "exprparse.y"
1284 : { (yyval.elist) = make_elist((yyvsp[0].expr), (yyvsp[-2].elist)); }
1285 : #line 1286 "exprparse.c"
1286 686 : break;
1287 :
1288 104 : case 6: /* expr: '(' expr ')' */
1289 : #line 93 "exprparse.y"
1290 : { (yyval.expr) = (yyvsp[-1].expr); }
1291 : #line 1292 "exprparse.c"
1292 104 : break;
1293 :
1294 4 : case 7: /* expr: '+' expr */
1295 : #line 94 "exprparse.y"
1296 : { (yyval.expr) = (yyvsp[0].expr); }
1297 : #line 1298 "exprparse.c"
1298 4 : break;
1299 :
1300 92 : case 8: /* expr: '-' expr */
1301 : #line 96 "exprparse.y"
1302 : { (yyval.expr) = make_op(yyscanner, "-",
1303 : make_integer_constant(0), (yyvsp[0].expr)); }
1304 : #line 1305 "exprparse.c"
1305 92 : break;
1306 :
1307 2 : case 9: /* expr: '-' MAXINT_PLUS_ONE_CONST */
1308 : #line 100 "exprparse.y"
1309 : { (yyval.expr) = make_integer_constant(PG_INT64_MIN); }
1310 : #line 1311 "exprparse.c"
1311 2 : break;
1312 :
1313 4 : case 10: /* expr: '~' expr */
1314 : #line 102 "exprparse.y"
1315 : { (yyval.expr) = make_op(yyscanner, "#",
1316 : make_integer_constant(~INT64CONST(0)), (yyvsp[0].expr)); }
1317 : #line 1318 "exprparse.c"
1318 4 : break;
1319 :
1320 24 : case 11: /* expr: NOT_OP expr */
1321 : #line 104 "exprparse.y"
1322 : { (yyval.expr) = make_uop(yyscanner, "!not", (yyvsp[0].expr)); }
1323 : #line 1324 "exprparse.c"
1324 24 : break;
1325 :
1326 96 : case 12: /* expr: expr '+' expr */
1327 : #line 105 "exprparse.y"
1328 : { (yyval.expr) = make_op(yyscanner, "+", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1329 : #line 1330 "exprparse.c"
1330 96 : break;
1331 :
1332 36 : case 13: /* expr: expr '-' expr */
1333 : #line 106 "exprparse.y"
1334 : { (yyval.expr) = make_op(yyscanner, "-", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1335 : #line 1336 "exprparse.c"
1336 36 : break;
1337 :
1338 408 : case 14: /* expr: expr '*' expr */
1339 : #line 107 "exprparse.y"
1340 : { (yyval.expr) = make_op(yyscanner, "*", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1341 : #line 1342 "exprparse.c"
1342 408 : break;
1343 :
1344 26 : case 15: /* expr: expr '/' expr */
1345 : #line 108 "exprparse.y"
1346 : { (yyval.expr) = make_op(yyscanner, "/", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1347 : #line 1348 "exprparse.c"
1348 26 : break;
1349 :
1350 4 : case 16: /* expr: expr '%' expr */
1351 : #line 109 "exprparse.y"
1352 : { (yyval.expr) = make_op(yyscanner, "mod", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1353 : #line 1354 "exprparse.c"
1354 4 : break;
1355 :
1356 20 : case 17: /* expr: expr '<' expr */
1357 : #line 110 "exprparse.y"
1358 : { (yyval.expr) = make_op(yyscanner, "<", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1359 : #line 1360 "exprparse.c"
1360 20 : break;
1361 :
1362 8 : case 18: /* expr: expr LE_OP expr */
1363 : #line 111 "exprparse.y"
1364 : { (yyval.expr) = make_op(yyscanner, "<=", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1365 : #line 1366 "exprparse.c"
1366 8 : break;
1367 :
1368 12 : case 19: /* expr: expr '>' expr */
1369 : #line 112 "exprparse.y"
1370 : { (yyval.expr) = make_op(yyscanner, "<", (yyvsp[0].expr), (yyvsp[-2].expr)); }
1371 : #line 1372 "exprparse.c"
1372 12 : break;
1373 :
1374 6 : case 20: /* expr: expr GE_OP expr */
1375 : #line 113 "exprparse.y"
1376 : { (yyval.expr) = make_op(yyscanner, "<=", (yyvsp[0].expr), (yyvsp[-2].expr)); }
1377 : #line 1378 "exprparse.c"
1378 6 : break;
1379 :
1380 64 : case 21: /* expr: expr '=' expr */
1381 : #line 114 "exprparse.y"
1382 : { (yyval.expr) = make_op(yyscanner, "=", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1383 : #line 1384 "exprparse.c"
1384 64 : break;
1385 :
1386 16 : case 22: /* expr: expr NE_OP expr */
1387 : #line 115 "exprparse.y"
1388 : { (yyval.expr) = make_op(yyscanner, "<>", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1389 : #line 1390 "exprparse.c"
1390 16 : break;
1391 :
1392 2 : case 23: /* expr: expr '&' expr */
1393 : #line 116 "exprparse.y"
1394 : { (yyval.expr) = make_op(yyscanner, "&", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1395 : #line 1396 "exprparse.c"
1396 2 : break;
1397 :
1398 4 : case 24: /* expr: expr '|' expr */
1399 : #line 117 "exprparse.y"
1400 : { (yyval.expr) = make_op(yyscanner, "|", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1401 : #line 1402 "exprparse.c"
1402 4 : break;
1403 :
1404 2 : case 25: /* expr: expr '#' expr */
1405 : #line 118 "exprparse.y"
1406 : { (yyval.expr) = make_op(yyscanner, "#", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1407 : #line 1408 "exprparse.c"
1408 2 : break;
1409 :
1410 14 : case 26: /* expr: expr LS_OP expr */
1411 : #line 119 "exprparse.y"
1412 : { (yyval.expr) = make_op(yyscanner, "<<", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1413 : #line 1414 "exprparse.c"
1414 14 : break;
1415 :
1416 2 : case 27: /* expr: expr RS_OP expr */
1417 : #line 120 "exprparse.y"
1418 : { (yyval.expr) = make_op(yyscanner, ">>", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1419 : #line 1420 "exprparse.c"
1420 2 : break;
1421 :
1422 88 : case 28: /* expr: expr AND_OP expr */
1423 : #line 121 "exprparse.y"
1424 : { (yyval.expr) = make_op(yyscanner, "!and", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1425 : #line 1426 "exprparse.c"
1426 88 : break;
1427 :
1428 10 : case 29: /* expr: expr OR_OP expr */
1429 : #line 122 "exprparse.y"
1430 : { (yyval.expr) = make_op(yyscanner, "!or", (yyvsp[-2].expr), (yyvsp[0].expr)); }
1431 : #line 1432 "exprparse.c"
1432 10 : break;
1433 :
1434 2 : case 30: /* expr: expr ISNULL_OP */
1435 : #line 124 "exprparse.y"
1436 : { (yyval.expr) = make_op(yyscanner, "!is", (yyvsp[-1].expr), make_null_constant()); }
1437 : #line 1438 "exprparse.c"
1438 2 : break;
1439 :
1440 2 : case 31: /* expr: expr NOTNULL_OP */
1441 : #line 125 "exprparse.y"
1442 : {
1443 : (yyval.expr) = make_uop(yyscanner, "!not",
1444 : make_op(yyscanner, "!is", (yyvsp[-1].expr), make_null_constant()));
1445 : }
1446 : #line 1447 "exprparse.c"
1447 2 : break;
1448 :
1449 8 : case 32: /* expr: expr IS_OP NULL_CONST */
1450 : #line 129 "exprparse.y"
1451 : { (yyval.expr) = make_op(yyscanner, "!is", (yyvsp[-2].expr), make_null_constant()); }
1452 : #line 1453 "exprparse.c"
1453 8 : break;
1454 :
1455 4 : case 33: /* expr: expr IS_OP NOT_OP NULL_CONST */
1456 : #line 131 "exprparse.y"
1457 : {
1458 : (yyval.expr) = make_uop(yyscanner, "!not",
1459 : make_op(yyscanner, "!is", (yyvsp[-3].expr), make_null_constant()));
1460 : }
1461 : #line 1462 "exprparse.c"
1462 4 : break;
1463 :
1464 2 : case 34: /* expr: expr IS_OP BOOLEAN_CONST */
1465 : #line 136 "exprparse.y"
1466 : {
1467 : (yyval.expr) = make_op(yyscanner, "!is", (yyvsp[-2].expr), make_boolean_constant((yyvsp[0].bval)));
1468 : }
1469 : #line 1470 "exprparse.c"
1470 2 : break;
1471 :
1472 2 : case 35: /* expr: expr IS_OP NOT_OP BOOLEAN_CONST */
1473 : #line 140 "exprparse.y"
1474 : {
1475 : (yyval.expr) = make_uop(yyscanner, "!not",
1476 : make_op(yyscanner, "!is", (yyvsp[-3].expr), make_boolean_constant((yyvsp[0].bval))));
1477 : }
1478 : #line 1479 "exprparse.c"
1479 2 : break;
1480 :
1481 12 : case 36: /* expr: NULL_CONST */
1482 : #line 145 "exprparse.y"
1483 : { (yyval.expr) = make_null_constant(); }
1484 : #line 1485 "exprparse.c"
1485 12 : break;
1486 :
1487 40 : case 37: /* expr: BOOLEAN_CONST */
1488 : #line 146 "exprparse.y"
1489 : { (yyval.expr) = make_boolean_constant((yyvsp[0].bval)); }
1490 : #line 1491 "exprparse.c"
1491 40 : break;
1492 :
1493 1588 : case 38: /* expr: INTEGER_CONST */
1494 : #line 147 "exprparse.y"
1495 : { (yyval.expr) = make_integer_constant((yyvsp[0].ival)); }
1496 : #line 1497 "exprparse.c"
1497 1588 : break;
1498 :
1499 122 : case 39: /* expr: DOUBLE_CONST */
1500 : #line 148 "exprparse.y"
1501 : { (yyval.expr) = make_double_constant((yyvsp[0].dval)); }
1502 : #line 1503 "exprparse.c"
1503 122 : break;
1504 :
1505 540 : case 40: /* expr: VARIABLE */
1506 : #line 150 "exprparse.y"
1507 : { (yyval.expr) = make_variable((yyvsp[0].str)); }
1508 : #line 1509 "exprparse.c"
1509 540 : break;
1510 :
1511 796 : case 41: /* expr: function '(' elist ')' */
1512 : #line 151 "exprparse.y"
1513 : { (yyval.expr) = make_func(yyscanner, (yyvsp[-3].ival), (yyvsp[-1].elist)); }
1514 : #line 1515 "exprparse.c"
1515 780 : break;
1516 :
1517 28 : case 42: /* expr: case_control */
1518 : #line 152 "exprparse.y"
1519 : { (yyval.expr) = (yyvsp[0].expr); }
1520 : #line 1521 "exprparse.c"
1521 28 : break;
1522 :
1523 4 : case 43: /* when_then_list: when_then_list WHEN_KW expr THEN_KW expr */
1524 : #line 156 "exprparse.y"
1525 : { (yyval.elist) = make_elist((yyvsp[0].expr), make_elist((yyvsp[-2].expr), (yyvsp[-4].elist))); }
1526 : #line 1527 "exprparse.c"
1527 4 : break;
1528 :
1529 28 : case 44: /* when_then_list: WHEN_KW expr THEN_KW expr */
1530 : #line 157 "exprparse.y"
1531 : { (yyval.elist) = make_elist((yyvsp[0].expr), make_elist((yyvsp[-2].expr), NULL)); }
1532 : #line 1533 "exprparse.c"
1533 28 : break;
1534 :
1535 8 : case 45: /* case_control: CASE_KW when_then_list END_KW */
1536 : #line 160 "exprparse.y"
1537 : { (yyval.expr) = make_case(yyscanner, (yyvsp[-1].elist), make_null_constant()); }
1538 : #line 1539 "exprparse.c"
1539 8 : break;
1540 :
1541 20 : case 46: /* case_control: CASE_KW when_then_list ELSE_KW expr END_KW */
1542 : #line 161 "exprparse.y"
1543 : { (yyval.expr) = make_case(yyscanner, (yyvsp[-3].elist), (yyvsp[-1].expr)); }
1544 : #line 1545 "exprparse.c"
1545 20 : break;
1546 :
1547 798 : case 47: /* function: FUNCTION */
1548 : #line 163 "exprparse.y"
1549 : { (yyval.ival) = find_func(yyscanner, (yyvsp[0].str)); pg_free((yyvsp[0].str)); }
1550 : #line 1551 "exprparse.c"
1551 796 : break;
1552 :
1553 :
1554 : #line 1555 "exprparse.c"
1555 :
1556 0 : default: break;
1557 : }
1558 : /* User semantic actions sometimes alter yychar, and that requires
1559 : that yytoken be updated with the new translation. We take the
1560 : approach of translating immediately before every use of yytoken.
1561 : One alternative is translating here after every semantic action,
1562 : but that translation would be missed if the semantic action invokes
1563 : YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
1564 : if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
1565 : incorrect destructor might then be invoked immediately. In the
1566 : case of YYERROR or YYBACKUP, subsequent parser actions might lead
1567 : to an incorrect destructor call or verbose syntax error message
1568 : before the lookahead is translated. */
1569 : YY_SYMBOL_PRINT ("-> $$ =", YY_CAST (yysymbol_kind_t, yyr1[yyn]), &yyval, &yyloc);
1570 :
1571 7250 : YYPOPSTACK (yylen);
1572 7250 : yylen = 0;
1573 :
1574 7250 : *++yyvsp = yyval;
1575 :
1576 : /* Now 'shift' the result of the reduction. Determine what state
1577 : that goes to, based on the state we popped back to and the rule
1578 : number reduced by. */
1579 : {
1580 7250 : const int yylhs = yyr1[yyn] - YYNTOKENS;
1581 7250 : const int yyi = yypgoto[yylhs] + *yyssp;
1582 5042 : yystate = (0 <= yyi && yyi <= YYLAST && yycheck[yyi] == *yyssp
1583 3400 : ? yytable[yyi]
1584 12292 : : yydefgoto[yylhs]);
1585 : }
1586 :
1587 7250 : goto yynewstate;
1588 :
1589 :
1590 : /*--------------------------------------.
1591 : | yyerrlab -- here on detecting error. |
1592 : `--------------------------------------*/
1593 12 : yyerrlab:
1594 : /* Make sure we have latest lookahead translation. See comments at
1595 : user semantic actions for why this is necessary. */
1596 12 : yytoken = yychar == YYEMPTY ? YYSYMBOL_YYEMPTY : YYTRANSLATE (yychar);
1597 : /* If not already recovering from an error, report this error. */
1598 12 : if (!yyerrstatus)
1599 : {
1600 12 : ++yynerrs;
1601 12 : yyerror (yyscanner, YY_("syntax error"));
1602 : }
1603 :
1604 0 : if (yyerrstatus == 3)
1605 : {
1606 : /* If just tried and failed to reuse lookahead token after an
1607 : error, discard it. */
1608 :
1609 0 : if (yychar <= YYEOF)
1610 : {
1611 : /* Return failure if at end of input. */
1612 0 : if (yychar == YYEOF)
1613 0 : YYABORT;
1614 : }
1615 : else
1616 : {
1617 0 : yydestruct ("Error: discarding",
1618 : yytoken, &yylval, yyscanner);
1619 0 : yychar = YYEMPTY;
1620 : }
1621 : }
1622 :
1623 : /* Else will try to reuse lookahead token after shifting the error
1624 : token. */
1625 0 : goto yyerrlab1;
1626 :
1627 :
1628 : /*---------------------------------------------------.
1629 : | yyerrorlab -- error raised explicitly by YYERROR. |
1630 : `---------------------------------------------------*/
1631 : yyerrorlab:
1632 : /* Pacify compilers when the user code never invokes YYERROR and the
1633 : label yyerrorlab therefore never appears in user code. */
1634 : if (0)
1635 : YYERROR;
1636 :
1637 : /* Do not reclaim the symbols of the rule whose action triggered
1638 : this YYERROR. */
1639 : YYPOPSTACK (yylen);
1640 : yylen = 0;
1641 : YY_STACK_PRINT (yyss, yyssp);
1642 : yystate = *yyssp;
1643 : goto yyerrlab1;
1644 :
1645 :
1646 : /*-------------------------------------------------------------.
1647 : | yyerrlab1 -- common code for both syntax error and YYERROR. |
1648 : `-------------------------------------------------------------*/
1649 0 : yyerrlab1:
1650 0 : yyerrstatus = 3; /* Each real token shifted decrements this. */
1651 :
1652 : /* Pop stack until we find a state that shifts the error token. */
1653 : for (;;)
1654 : {
1655 0 : yyn = yypact[yystate];
1656 0 : if (!yypact_value_is_default (yyn))
1657 : {
1658 0 : yyn += YYSYMBOL_YYerror;
1659 0 : if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYSYMBOL_YYerror)
1660 : {
1661 0 : yyn = yytable[yyn];
1662 0 : if (0 < yyn)
1663 0 : break;
1664 : }
1665 : }
1666 :
1667 : /* Pop the current state because it cannot handle the error token. */
1668 0 : if (yyssp == yyss)
1669 0 : YYABORT;
1670 :
1671 :
1672 0 : yydestruct ("Error: popping",
1673 0 : YY_ACCESSING_SYMBOL (yystate), yyvsp, yyscanner);
1674 0 : YYPOPSTACK (1);
1675 0 : yystate = *yyssp;
1676 : YY_STACK_PRINT (yyss, yyssp);
1677 : }
1678 :
1679 : YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
1680 0 : *++yyvsp = yylval;
1681 : YY_IGNORE_MAYBE_UNINITIALIZED_END
1682 :
1683 :
1684 : /* Shift the error token. */
1685 : YY_SYMBOL_PRINT ("Shifting", YY_ACCESSING_SYMBOL (yyn), yyvsp, yylsp);
1686 :
1687 0 : yystate = yyn;
1688 0 : goto yynewstate;
1689 :
1690 :
1691 : /*-------------------------------------.
1692 : | yyacceptlab -- YYACCEPT comes here. |
1693 : `-------------------------------------*/
1694 734 : yyacceptlab:
1695 734 : yyresult = 0;
1696 734 : goto yyreturn;
1697 :
1698 :
1699 : /*-----------------------------------.
1700 : | yyabortlab -- YYABORT comes here. |
1701 : `-----------------------------------*/
1702 0 : yyabortlab:
1703 0 : yyresult = 1;
1704 0 : goto yyreturn;
1705 :
1706 :
1707 : #if !defined yyoverflow
1708 : /*-------------------------------------------------.
1709 : | yyexhaustedlab -- memory exhaustion comes here. |
1710 : `-------------------------------------------------*/
1711 0 : yyexhaustedlab:
1712 0 : yyerror (yyscanner, YY_("memory exhausted"));
1713 : yyresult = 2;
1714 : goto yyreturn;
1715 : #endif
1716 :
1717 :
1718 : /*-------------------------------------------------------.
1719 : | yyreturn -- parsing is finished, clean up and return. |
1720 : `-------------------------------------------------------*/
1721 734 : yyreturn:
1722 734 : if (yychar != YYEMPTY)
1723 : {
1724 : /* Make sure we have latest lookahead translation. See comments at
1725 : user semantic actions for why this is necessary. */
1726 0 : yytoken = YYTRANSLATE (yychar);
1727 0 : yydestruct ("Cleanup: discarding lookahead",
1728 : yytoken, &yylval, yyscanner);
1729 : }
1730 : /* Do not reclaim the symbols of the rule whose action triggered
1731 : this YYABORT or YYACCEPT. */
1732 734 : YYPOPSTACK (yylen);
1733 : YY_STACK_PRINT (yyss, yyssp);
1734 2202 : while (yyssp != yyss)
1735 : {
1736 1468 : yydestruct ("Cleanup: popping",
1737 1468 : YY_ACCESSING_SYMBOL (+*yyssp), yyvsp, yyscanner);
1738 1468 : YYPOPSTACK (1);
1739 : }
1740 : #ifndef yyoverflow
1741 734 : if (yyss != yyssa)
1742 0 : YYSTACK_FREE (yyss);
1743 : #endif
1744 :
1745 734 : return yyresult;
1746 : }
1747 :
1748 : #line 166 "exprparse.y"
1749 :
1750 :
1751 : static PgBenchExpr *
1752 : make_null_constant(void)
1753 : {
1754 : PgBenchExpr *expr = pg_malloc(sizeof(PgBenchExpr));
1755 :
1756 : expr->etype = ENODE_CONSTANT;
1757 : expr->u.constant.type = PGBT_NULL;
1758 : expr->u.constant.u.ival = 0;
1759 : return expr;
1760 : }
1761 :
1762 : static PgBenchExpr *
1763 : make_integer_constant(int64 ival)
1764 : {
1765 : PgBenchExpr *expr = pg_malloc(sizeof(PgBenchExpr));
1766 :
1767 : expr->etype = ENODE_CONSTANT;
1768 : expr->u.constant.type = PGBT_INT;
1769 : expr->u.constant.u.ival = ival;
1770 : return expr;
1771 : }
1772 :
1773 : static PgBenchExpr *
1774 : make_double_constant(double dval)
1775 : {
1776 : PgBenchExpr *expr = pg_malloc(sizeof(PgBenchExpr));
1777 :
1778 : expr->etype = ENODE_CONSTANT;
1779 : expr->u.constant.type = PGBT_DOUBLE;
1780 : expr->u.constant.u.dval = dval;
1781 : return expr;
1782 : }
1783 :
1784 : static PgBenchExpr *
1785 : make_boolean_constant(bool bval)
1786 : {
1787 : PgBenchExpr *expr = pg_malloc(sizeof(PgBenchExpr));
1788 :
1789 : expr->etype = ENODE_CONSTANT;
1790 : expr->u.constant.type = PGBT_BOOLEAN;
1791 : expr->u.constant.u.bval = bval;
1792 : return expr;
1793 : }
1794 :
1795 : static PgBenchExpr *
1796 : make_variable(char *varname)
1797 : {
1798 : PgBenchExpr *expr = pg_malloc(sizeof(PgBenchExpr));
1799 :
1800 : expr->etype = ENODE_VARIABLE;
1801 : expr->u.variable.varname = varname;
1802 : return expr;
1803 : }
1804 :
1805 : /* binary operators */
1806 : static PgBenchExpr *
1807 : make_op(yyscan_t yyscanner, const char *operator,
1808 : PgBenchExpr *lexpr, PgBenchExpr *rexpr)
1809 : {
1810 : return make_func(yyscanner, find_func(yyscanner, operator),
1811 : make_elist(rexpr, make_elist(lexpr, NULL)));
1812 : }
1813 :
1814 : /* unary operator */
1815 : static PgBenchExpr *
1816 : make_uop(yyscan_t yyscanner, const char *operator, PgBenchExpr *expr)
1817 : {
1818 : return make_func(yyscanner, find_func(yyscanner, operator), make_elist(expr, NULL));
1819 : }
1820 :
1821 : /*
1822 : * List of available functions:
1823 : * - fname: function name, "!..." for special internal functions
1824 : * - nargs: number of arguments. Special cases:
1825 : * - PGBENCH_NARGS_VARIABLE is a special value for least & greatest
1826 : * meaning #args >= 1;
1827 : * - PGBENCH_NARGS_CASE is for the "CASE WHEN ..." function, which
1828 : * has #args >= 3 and odd;
1829 : * - PGBENCH_NARGS_HASH is for hash functions, which have one required
1830 : * and one optional argument;
1831 : * - tag: function identifier from PgBenchFunction enum
1832 : */
1833 : static const struct
1834 : {
1835 : const char *fname;
1836 : int nargs;
1837 : PgBenchFunction tag;
1838 : } PGBENCH_FUNCTIONS[] =
1839 : {
1840 : /* parsed as operators, executed as functions */
1841 : {
1842 : "+", 2, PGBENCH_ADD
1843 : },
1844 : {
1845 : "-", 2, PGBENCH_SUB
1846 : },
1847 : {
1848 : "*", 2, PGBENCH_MUL
1849 : },
1850 : {
1851 : "/", 2, PGBENCH_DIV
1852 : },
1853 : {
1854 : "mod", 2, PGBENCH_MOD
1855 : },
1856 : /* actual functions */
1857 : {
1858 : "abs", 1, PGBENCH_ABS
1859 : },
1860 : {
1861 : "least", PGBENCH_NARGS_VARIABLE, PGBENCH_LEAST
1862 : },
1863 : {
1864 : "greatest", PGBENCH_NARGS_VARIABLE, PGBENCH_GREATEST
1865 : },
1866 : {
1867 : "debug", 1, PGBENCH_DEBUG
1868 : },
1869 : {
1870 : "pi", 0, PGBENCH_PI
1871 : },
1872 : {
1873 : "sqrt", 1, PGBENCH_SQRT
1874 : },
1875 : {
1876 : "ln", 1, PGBENCH_LN
1877 : },
1878 : {
1879 : "exp", 1, PGBENCH_EXP
1880 : },
1881 : {
1882 : "int", 1, PGBENCH_INT
1883 : },
1884 : {
1885 : "double", 1, PGBENCH_DOUBLE
1886 : },
1887 : {
1888 : "random", 2, PGBENCH_RANDOM
1889 : },
1890 : {
1891 : "random_gaussian", 3, PGBENCH_RANDOM_GAUSSIAN
1892 : },
1893 : {
1894 : "random_exponential", 3, PGBENCH_RANDOM_EXPONENTIAL
1895 : },
1896 : {
1897 : "random_zipfian", 3, PGBENCH_RANDOM_ZIPFIAN
1898 : },
1899 : {
1900 : "pow", 2, PGBENCH_POW
1901 : },
1902 : {
1903 : "power", 2, PGBENCH_POW
1904 : },
1905 : /* logical operators */
1906 : {
1907 : "!and", 2, PGBENCH_AND
1908 : },
1909 : {
1910 : "!or", 2, PGBENCH_OR
1911 : },
1912 : {
1913 : "!not", 1, PGBENCH_NOT
1914 : },
1915 : /* bitwise integer operators */
1916 : {
1917 : "&", 2, PGBENCH_BITAND
1918 : },
1919 : {
1920 : "|", 2, PGBENCH_BITOR
1921 : },
1922 : {
1923 : "#", 2, PGBENCH_BITXOR
1924 : },
1925 : {
1926 : "<<", 2, PGBENCH_LSHIFT
1927 : },
1928 : {
1929 : ">>", 2, PGBENCH_RSHIFT
1930 : },
1931 : /* comparison operators */
1932 : {
1933 : "=", 2, PGBENCH_EQ
1934 : },
1935 : {
1936 : "<>", 2, PGBENCH_NE
1937 : },
1938 : {
1939 : "<=", 2, PGBENCH_LE
1940 : },
1941 : {
1942 : "<", 2, PGBENCH_LT
1943 : },
1944 : {
1945 : "!is", 2, PGBENCH_IS
1946 : },
1947 : /* "case when ... then ... else ... end" construction */
1948 : {
1949 : "!case_end", PGBENCH_NARGS_CASE, PGBENCH_CASE
1950 : },
1951 : {
1952 : "hash", PGBENCH_NARGS_HASH, PGBENCH_HASH_MURMUR2
1953 : },
1954 : {
1955 : "hash_murmur2", PGBENCH_NARGS_HASH, PGBENCH_HASH_MURMUR2
1956 : },
1957 : {
1958 : "hash_fnv1a", PGBENCH_NARGS_HASH, PGBENCH_HASH_FNV1A
1959 : },
1960 : {
1961 : "permute", PGBENCH_NARGS_PERMUTE, PGBENCH_PERMUTE
1962 : },
1963 : /* keep as last array element */
1964 : {
1965 : NULL, 0, 0
1966 : }
1967 : };
1968 :
1969 : /*
1970 : * Find a function from its name
1971 : *
1972 : * return the index of the function from the PGBENCH_FUNCTIONS array
1973 : * or fail if the function is unknown.
1974 : */
1975 : static int
1976 : find_func(yyscan_t yyscanner, const char *fname)
1977 : {
1978 : int i = 0;
1979 :
1980 : while (PGBENCH_FUNCTIONS[i].fname)
1981 : {
1982 : if (pg_strcasecmp(fname, PGBENCH_FUNCTIONS[i].fname) == 0)
1983 : return i;
1984 : i++;
1985 : }
1986 :
1987 : expr_yyerror_more(yyscanner, "unexpected function name", fname);
1988 :
1989 : /* not reached */
1990 : return -1;
1991 : }
1992 :
1993 : /* Expression linked list builder */
1994 : static PgBenchExprList *
1995 : make_elist(PgBenchExpr *expr, PgBenchExprList *list)
1996 : {
1997 : PgBenchExprLink *cons;
1998 :
1999 : if (list == NULL)
2000 : {
2001 : list = pg_malloc(sizeof(PgBenchExprList));
2002 : list->head = NULL;
2003 : list->tail = NULL;
2004 : }
2005 :
2006 : cons = pg_malloc(sizeof(PgBenchExprLink));
2007 : cons->expr = expr;
2008 : cons->next = NULL;
2009 :
2010 : if (list->head == NULL)
2011 : list->head = cons;
2012 : else
2013 : list->tail->next = cons;
2014 :
2015 : list->tail = cons;
2016 :
2017 : return list;
2018 : }
2019 :
2020 : /* Return the length of an expression list */
2021 : static int
2022 : elist_length(PgBenchExprList *list)
2023 : {
2024 : PgBenchExprLink *link = list != NULL ? list->head : NULL;
2025 : int len = 0;
2026 :
2027 : for (; link != NULL; link = link->next)
2028 : len++;
2029 :
2030 : return len;
2031 : }
2032 :
2033 : /* Build function call expression */
2034 : static PgBenchExpr *
2035 : make_func(yyscan_t yyscanner, int fnumber, PgBenchExprList *args)
2036 : {
2037 : int len = elist_length(args);
2038 :
2039 : PgBenchExpr *expr = pg_malloc(sizeof(PgBenchExpr));
2040 :
2041 : Assert(fnumber >= 0);
2042 :
2043 : /* validate arguments number including few special cases */
2044 : switch (PGBENCH_FUNCTIONS[fnumber].nargs)
2045 : {
2046 : /* check at least one arg for least & greatest */
2047 : case PGBENCH_NARGS_VARIABLE:
2048 : if (len == 0)
2049 : expr_yyerror_more(yyscanner, "at least one argument expected",
2050 : PGBENCH_FUNCTIONS[fnumber].fname);
2051 : break;
2052 :
2053 : /* case (when ... then ...)+ (else ...)? end */
2054 : case PGBENCH_NARGS_CASE:
2055 : /* 'else' branch is always present, but could be a NULL-constant */
2056 : if (len < 3 || len % 2 != 1)
2057 : expr_yyerror_more(yyscanner,
2058 : "odd and >= 3 number of arguments expected",
2059 : "case control structure");
2060 : break;
2061 :
2062 : /* hash functions with optional seed argument */
2063 : case PGBENCH_NARGS_HASH:
2064 : if (len < 1 || len > 2)
2065 : expr_yyerror_more(yyscanner, "unexpected number of arguments",
2066 : PGBENCH_FUNCTIONS[fnumber].fname);
2067 :
2068 : if (len == 1)
2069 : {
2070 : PgBenchExpr *var = make_variable("default_seed");
2071 : args = make_elist(var, args);
2072 : }
2073 : break;
2074 :
2075 : /* pseudorandom permutation function with optional seed argument */
2076 : case PGBENCH_NARGS_PERMUTE:
2077 : if (len < 2 || len > 3)
2078 : expr_yyerror_more(yyscanner, "unexpected number of arguments",
2079 : PGBENCH_FUNCTIONS[fnumber].fname);
2080 :
2081 : if (len == 2)
2082 : {
2083 : PgBenchExpr *var = make_variable("default_seed");
2084 : args = make_elist(var, args);
2085 : }
2086 : break;
2087 :
2088 : /* common case: positive arguments number */
2089 : default:
2090 : Assert(PGBENCH_FUNCTIONS[fnumber].nargs >= 0);
2091 :
2092 : if (PGBENCH_FUNCTIONS[fnumber].nargs != len)
2093 : expr_yyerror_more(yyscanner, "unexpected number of arguments",
2094 : PGBENCH_FUNCTIONS[fnumber].fname);
2095 : }
2096 :
2097 : expr->etype = ENODE_FUNCTION;
2098 : expr->u.function.function = PGBENCH_FUNCTIONS[fnumber].tag;
2099 :
2100 : /* only the link is used, the head/tail is not useful anymore */
2101 : expr->u.function.args = args != NULL ? args->head : NULL;
2102 : if (args)
2103 : pg_free(args);
2104 :
2105 : return expr;
2106 : }
2107 :
2108 : static PgBenchExpr *
2109 : make_case(yyscan_t yyscanner, PgBenchExprList *when_then_list, PgBenchExpr *else_part)
2110 : {
2111 : return make_func(yyscanner,
2112 : find_func(yyscanner, "!case_end"),
2113 : make_elist(else_part, when_then_list));
2114 : }
|
