Commit | Line | Data |
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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
f05e27e5 | 3 | * Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall |
2eee27d7 | 4 | * Copyright (c) 2007, 2008, 2009, 2010, 2011 by Larry Wall and others |
a687059c | 5 | * |
9ef589d8 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
8d063cd8 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? | |
4ac71550 | 13 | * All that is gold does not glitter, not all those who wander are lost.' |
f05e27e5 | 14 | * |
4ac71550 TC |
15 | * [p.171 of _The Lord of the Rings_, I/x: "Strider"] |
16 | */ | |
17 | ||
18 | /* | |
f05e27e5 | 19 | * This file holds the grammar for the Perl language. If edited, you need |
166f8a29 DM |
20 | * to run regen_perly.pl, which re-creates the files perly.h, perly.tab |
21 | * and perly.act which are derived from this. | |
22 | * | |
23 | * The main job of of this grammar is to call the various newFOO() | |
24 | * functions in op.c to build a syntax tree of OP structs. | |
61296642 | 25 | * It relies on the lexer in toke.c to do the tokenizing. |
29522234 DM |
26 | * |
27 | * Note: due to the way that the cleanup code works WRT to freeing ops on | |
28 | * the parse stack, it is dangerous to assign to the $n variables within | |
29 | * an action. | |
166f8a29 DM |
30 | */ |
31 | ||
0de566d7 | 32 | /* Make the parser re-entrant. */ |
8d063cd8 | 33 | |
f39ff1f3 | 34 | %pure-parser |
8d063cd8 | 35 | |
28ac2b49 | 36 | %start grammar |
9d116dd7 | 37 | |
8d063cd8 | 38 | %union { |
d5c6462e DM |
39 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
40 | must always be 1st union member) */ | |
79072805 LW |
41 | char *pval; |
42 | OP *opval; | |
43 | GV *gvval; | |
8d063cd8 LW |
44 | } |
45 | ||
78cdf107 | 46 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 47 | |
f10ebf6c | 48 | %token <ival> '{' '}' '[' ']' '-' '+' '@' '%' '&' '=' '.' |
f0fcb552 | 49 | |
185c2e96 | 50 | %token <opval> BAREWORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
7eb971ee | 51 | %token <opval> FUNC0OP FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 52 | %token <opval> PLUGEXPR PLUGSTMT |
b5bbe64a | 53 | %token <pval> LABEL |
436ddf68 | 54 | %token <ival> FORMAT SUB SIGSUB ANONSUB ANON_SIGSUB PACKAGE USE |
b5bbe64a | 55 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
7896dde7 | 56 | %token <ival> GIVEN WHEN DEFAULT |
b5bbe64a JH |
57 | %token <ival> LOOPEX DOTDOT YADAYADA |
58 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP | |
59 | %token <ival> RELOP EQOP MULOP ADDOP | |
60 | %token <ival> DOLSHARP DO HASHBRACK NOAMP | |
61 | %token <ival> LOCAL MY REQUIRE | |
62 | %token <ival> COLONATTR FORMLBRACK FORMRBRACK | |
f05e27e5 | 63 | |
727a8fe5 | 64 | %type <ival> grammar remember mremember |
f05e27e5 | 65 | %type <ival> startsub startanonsub startformsub |
b5bbe64a | 66 | |
b5a64814 | 67 | %type <ival> mintro |
f05e27e5 | 68 | |
8e720305 | 69 | %type <opval> stmtseq fullstmt labfullstmt barestmt block mblock else |
fad39ff1 | 70 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
76eba8ab | 71 | %type <opval> sliceme kvslice gelem |
08b3e84f | 72 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr |
9b6b7be8 | 73 | %type <opval> optlistexpr optexpr optrepl indirob listop method |
75230cc1 | 74 | %type <opval> formname subname proto cont my_scalar my_var |
d39c26a6 | 75 | %type <opval> refgen_topic formblock |
f05e27e5 | 76 | %type <opval> subattrlist myattrlist myattrterm myterm |
75230cc1 | 77 | %type <opval> termbinop termunop anonymous termdo |
d3d9da4a DM |
78 | %type <ival> sigslurpsigil |
79 | %type <opval> sigvarname sigdefault sigscalarelem sigslurpelem | |
75230cc1 DM |
80 | %type <opval> sigelem siglist siglistornull subsignature optsubsignature |
81 | %type <opval> subbody optsubbody sigsubbody optsigsubbody | |
705fe0e5 | 82 | %type <opval> formstmtseq formline formarg |
79072805 | 83 | |
b5bbe64a | 84 | %nonassoc <ival> PREC_LOW |
fad39ff1 SM |
85 | %nonassoc LOOPEX |
86 | ||
b5bbe64a JH |
87 | %left <ival> OROP DOROP |
88 | %left <ival> ANDOP | |
89 | %right <ival> NOTOP | |
36477c24 | 90 | %nonassoc LSTOP LSTOPSUB |
b5bbe64a JH |
91 | %left <ival> ',' |
92 | %right <ival> ASSIGNOP | |
93 | %right <ival> '?' ':' | |
29d69c3c | 94 | %nonassoc DOTDOT |
b5bbe64a JH |
95 | %left <ival> OROR DORDOR |
96 | %left <ival> ANDAND | |
97 | %left <ival> BITOROP | |
98 | %left <ival> BITANDOP | |
a687059c LW |
99 | %nonassoc EQOP |
100 | %nonassoc RELOP | |
36477c24 | 101 | %nonassoc UNIOP UNIOPSUB |
20515881 | 102 | %nonassoc REQUIRE |
b5bbe64a | 103 | %left <ival> SHIFTOP |
a687059c LW |
104 | %left ADDOP |
105 | %left MULOP | |
b5bbe64a JH |
106 | %left <ival> MATCHOP |
107 | %right <ival> '!' '~' UMINUS REFGEN | |
108 | %right <ival> POWOP | |
109 | %nonassoc <ival> PREINC PREDEC POSTINC POSTDEC POSTJOIN | |
110 | %left <ival> ARROW | |
111 | %nonassoc <ival> ')' | |
112 | %left <ival> '(' | |
fad39ff1 | 113 | %left '[' '{' |
8d063cd8 LW |
114 | |
115 | %% /* RULES */ | |
116 | ||
28ac2b49 | 117 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
118 | grammar : GRAMPROG |
119 | { | |
624fa8bd | 120 | parser->expect = XSTATE; |
5a2060e2 | 121 | $<ival>$ = 0; |
727a8fe5 Z |
122 | } |
123 | remember stmtseq | |
124 | { | |
125 | newPROG(block_end($3,$4)); | |
8635e3c2 | 126 | PL_compiling.cop_seq = 0; |
727a8fe5 Z |
127 | $$ = 0; |
128 | } | |
78cdf107 Z |
129 | | GRAMEXPR |
130 | { | |
131 | parser->expect = XTERM; | |
5a2060e2 | 132 | $<ival>$ = 0; |
78cdf107 | 133 | } |
09b1cffe | 134 | optexpr |
78cdf107 Z |
135 | { |
136 | PL_eval_root = $3; | |
137 | $$ = 0; | |
138 | } | |
e53d8f76 Z |
139 | | GRAMBLOCK |
140 | { | |
141 | parser->expect = XBLOCK; | |
5a2060e2 | 142 | $<ival>$ = 0; |
e53d8f76 Z |
143 | } |
144 | block | |
145 | { | |
5f211341 | 146 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
147 | PL_eval_root = $3; |
148 | $$ = 0; | |
149 | yyunlex(); | |
0f8490d1 | 150 | parser->yychar = yytoken = YYEOF; |
8359b381 Z |
151 | } |
152 | | GRAMBARESTMT | |
153 | { | |
154 | parser->expect = XSTATE; | |
5a2060e2 | 155 | $<ival>$ = 0; |
8359b381 Z |
156 | } |
157 | barestmt | |
158 | { | |
159 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
160 | PL_eval_root = $3; |
161 | $$ = 0; | |
162 | yyunlex(); | |
0f8490d1 | 163 | parser->yychar = yytoken = YYEOF; |
e53d8f76 | 164 | } |
9eb5c532 | 165 | | GRAMFULLSTMT |
28ac2b49 | 166 | { |
9eb5c532 | 167 | parser->expect = XSTATE; |
5a2060e2 | 168 | $<ival>$ = 0; |
9eb5c532 Z |
169 | } |
170 | fullstmt | |
171 | { | |
5f211341 | 172 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 173 | PL_eval_root = $3; |
28ac2b49 Z |
174 | $$ = 0; |
175 | yyunlex(); | |
0f8490d1 | 176 | parser->yychar = yytoken = YYEOF; |
28ac2b49 | 177 | } |
07ffcb73 Z |
178 | | GRAMSTMTSEQ |
179 | { | |
180 | parser->expect = XSTATE; | |
5a2060e2 | 181 | $<ival>$ = 0; |
07ffcb73 | 182 | } |
5f211341 | 183 | stmtseq |
07ffcb73 Z |
184 | { |
185 | PL_eval_root = $3; | |
186 | $$ = 0; | |
187 | } | |
188 | ; | |
189 | ||
891be019 | 190 | /* An ordinary block */ |
5f211341 | 191 | block : '{' remember stmtseq '}' |
624fa8bd FC |
192 | { if (parser->copline > (line_t)$1) |
193 | parser->copline = (line_t)$1; | |
f05e27e5 | 194 | $$ = block_end($2, $3); |
f05e27e5 | 195 | } |
a0d0e21e LW |
196 | ; |
197 | ||
7c70caa5 | 198 | /* format body */ |
705fe0e5 | 199 | formblock: '=' remember ';' FORMRBRACK formstmtseq ';' '.' |
624fa8bd FC |
200 | { if (parser->copline > (line_t)$1) |
201 | parser->copline = (line_t)$1; | |
705fe0e5 | 202 | $$ = block_end($2, $5); |
7c70caa5 FC |
203 | } |
204 | ; | |
205 | ||
55497cff | 206 | remember: /* NULL */ /* start a full lexical scope */ |
34b54951 FC |
207 | { $$ = block_start(TRUE); |
208 | parser->parsed_sub = 0; } | |
55497cff | 209 | ; |
210 | ||
5f211341 | 211 | mblock : '{' mremember stmtseq '}' |
624fa8bd FC |
212 | { if (parser->copline > (line_t)$1) |
213 | parser->copline = (line_t)$1; | |
f05e27e5 | 214 | $$ = block_end($2, $3); |
f05e27e5 | 215 | } |
55497cff | 216 | ; |
217 | ||
218 | mremember: /* NULL */ /* start a partial lexical scope */ | |
34b54951 FC |
219 | { $$ = block_start(FALSE); |
220 | parser->parsed_sub = 0; } | |
8d063cd8 LW |
221 | ; |
222 | ||
eae48c89 | 223 | /* A sequence of statements in the program */ |
5f211341 | 224 | stmtseq : /* NULL */ |
a9f5ab8d | 225 | { $$ = NULL; } |
5f211341 | 226 | | stmtseq fullstmt |
2fcb4757 | 227 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 228 | PL_pad_reset_pending = TRUE; |
503de470 DM |
229 | if ($1 && $2) |
230 | PL_hints |= HINT_BLOCK_SCOPE; | |
231 | } | |
8d063cd8 LW |
232 | ; |
233 | ||
705fe0e5 FC |
234 | /* A sequence of format lines */ |
235 | formstmtseq: /* NULL */ | |
a9f5ab8d | 236 | { $$ = NULL; } |
705fe0e5 FC |
237 | | formstmtseq formline |
238 | { $$ = op_append_list(OP_LINESEQ, $1, $2); | |
239 | PL_pad_reset_pending = TRUE; | |
240 | if ($1 && $2) | |
241 | PL_hints |= HINT_BLOCK_SCOPE; | |
242 | } | |
243 | ; | |
244 | ||
8e720305 Z |
245 | /* A statement in the program, including optional labels */ |
246 | fullstmt: barestmt | |
eae48c89 | 247 | { |
b5bbe64a | 248 | $$ = $1 ? newSTATEOP(0, NULL, $1) : NULL; |
eae48c89 | 249 | } |
8e720305 Z |
250 | | labfullstmt |
251 | { $$ = $1; } | |
252 | ; | |
253 | ||
254 | labfullstmt: LABEL barestmt | |
255 | { | |
b5bbe64a | 256 | $$ = newSTATEOP(SVf_UTF8 * $1[strlen($1)+1], $1, $2); |
8e720305 Z |
257 | } |
258 | | LABEL labfullstmt | |
259 | { | |
b5bbe64a | 260 | $$ = newSTATEOP(SVf_UTF8 * $1[strlen($1)+1], $1, $2); |
8e720305 | 261 | } |
eae48c89 Z |
262 | ; |
263 | ||
264 | /* A bare statement, lacking label and other aspects of state op */ | |
265 | barestmt: PLUGSTMT | |
0d863452 | 266 | { $$ = $1; } |
7c70caa5 | 267 | | FORMAT startformsub formname formblock |
f05e27e5 | 268 | { |
eae48c89 | 269 | CV *fmtcv = PL_compcv; |
eae48c89 | 270 | newFORM($2, $3, $4); |
a9f5ab8d | 271 | $$ = NULL; |
4a273b91 | 272 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
74a9453a | 273 | pad_add_weakref(fmtcv); |
f05e27e5 | 274 | } |
8b9fb2f9 | 275 | parser->parsed_sub = 1; |
eae48c89 | 276 | } |
50278755 | 277 | | SUB subname startsub |
75230cc1 DM |
278 | /* sub declaration or definition not within scope |
279 | of 'use feature "signatures"'*/ | |
50278755 | 280 | { |
50333c97 | 281 | init_named_cv(PL_compcv, $2); |
624fa8bd FC |
282 | parser->in_my = 0; |
283 | parser->in_my_stash = NULL; | |
764212cf | 284 | } |
75230cc1 | 285 | proto subattrlist optsubbody |
eae48c89 Z |
286 | { |
287 | SvREFCNT_inc_simple_void(PL_compcv); | |
50278755 FC |
288 | $2->op_type == OP_CONST |
289 | ? newATTRSUB($3, $2, $5, $6, $7) | |
290 | : newMYSUB($3, $2, $5, $6, $7) | |
50278755 | 291 | ; |
a9f5ab8d | 292 | $$ = NULL; |
764212cf | 293 | intro_my(); |
34b54951 | 294 | parser->parsed_sub = 1; |
f05e27e5 | 295 | } |
436ddf68 | 296 | | SIGSUB subname startsub |
75230cc1 DM |
297 | /* sub declaration or definition under 'use feature |
298 | * "signatures"'. (Note that a signature isn't | |
299 | * allowed in a declaration) | |
300 | */ | |
436ddf68 DM |
301 | { |
302 | init_named_cv(PL_compcv, $2); | |
303 | parser->in_my = 0; | |
304 | parser->in_my_stash = NULL; | |
305 | } | |
75230cc1 | 306 | subattrlist optsigsubbody |
436ddf68 DM |
307 | { |
308 | SvREFCNT_inc_simple_void(PL_compcv); | |
309 | $2->op_type == OP_CONST | |
75230cc1 DM |
310 | ? newATTRSUB($3, $2, NULL, $5, $6) |
311 | : newMYSUB( $3, $2, NULL, $5, $6) | |
436ddf68 DM |
312 | ; |
313 | $$ = NULL; | |
314 | intro_my(); | |
315 | parser->parsed_sub = 1; | |
316 | } | |
185c2e96 | 317 | | PACKAGE BAREWORD BAREWORD ';' |
5f211341 | 318 | { |
eae48c89 Z |
319 | package($3); |
320 | if ($2) | |
321 | package_version($2); | |
a9f5ab8d | 322 | $$ = NULL; |
eae48c89 Z |
323 | } |
324 | | USE startsub | |
325 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
185c2e96 | 326 | BAREWORD BAREWORD optlistexpr ';' |
eae48c89 Z |
327 | { |
328 | SvREFCNT_inc_simple_void(PL_compcv); | |
b5bbe64a | 329 | utilize($1, $2, $4, $5, $6); |
34b54951 | 330 | parser->parsed_sub = 1; |
a9f5ab8d | 331 | $$ = NULL; |
eae48c89 | 332 | } |
417a992d | 333 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 334 | { |
3ad73efd Z |
335 | $$ = block_end($3, |
336 | newCONDOP(0, $4, op_scope($6), $7)); | |
624fa8bd | 337 | parser->copline = (line_t)$1; |
eae48c89 | 338 | } |
08b3e84f | 339 | | UNLESS '(' remember mexpr ')' mblock else |
eae48c89 | 340 | { |
3ad73efd | 341 | $$ = block_end($3, |
08b3e84f | 342 | newCONDOP(0, $4, $7, op_scope($6))); |
624fa8bd | 343 | parser->copline = (line_t)$1; |
eae48c89 | 344 | } |
b5a64814 | 345 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 346 | { |
5d051ee0 | 347 | $$ = block_end($3, newGIVENOP($4, op_scope($6), 0)); |
624fa8bd | 348 | parser->copline = (line_t)$1; |
eae48c89 | 349 | } |
7896dde7 Z |
350 | | WHEN '(' remember mexpr ')' mblock |
351 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } | |
352 | | DEFAULT block | |
353 | { $$ = newWHENOP(0, op_scope($2)); } | |
417a992d | 354 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
355 | { |
356 | $$ = block_end($3, | |
a9f5ab8d | 357 | newWHILEOP(0, 1, NULL, |
94bf0465 | 358 | $4, $7, $8, $6)); |
624fa8bd | 359 | parser->copline = (line_t)$1; |
eae48c89 | 360 | } |
417a992d | 361 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
362 | { |
363 | $$ = block_end($3, | |
a9f5ab8d | 364 | newWHILEOP(0, 1, NULL, |
94bf0465 | 365 | $4, $7, $8, $6)); |
624fa8bd | 366 | parser->copline = (line_t)$1; |
eae48c89 | 367 | } |
2d0e3c96 FC |
368 | | FOR '(' remember mnexpr ';' |
369 | { parser->expect = XTERM; } | |
370 | texpr ';' | |
371 | { parser->expect = XTERM; } | |
372 | mintro mnexpr ')' | |
eae48c89 Z |
373 | mblock |
374 | { | |
b5bbe64a | 375 | OP *initop = $4; |
a9f5ab8d | 376 | OP *forop = newWHILEOP(0, 1, NULL, |
2d0e3c96 | 377 | scalar($7), $13, $11, $10); |
eae48c89 Z |
378 | if (initop) { |
379 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
380 | op_append_elem(OP_LINESEQ, | |
381 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
382 | forop)); | |
5f211341 | 383 | } |
0f602692 | 384 | PL_hints |= HINT_BLOCK_SCOPE; |
eae48c89 | 385 | $$ = block_end($3, forop); |
624fa8bd | 386 | parser->copline = (line_t)$1; |
eae48c89 | 387 | } |
417a992d | 388 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 389 | { |
94bf0465 | 390 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
624fa8bd | 391 | parser->copline = (line_t)$1; |
eae48c89 | 392 | } |
417a992d | 393 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 394 | { |
94bf0465 | 395 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 396 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
624fa8bd | 397 | parser->copline = (line_t)$1; |
eae48c89 | 398 | } |
e118fea3 FC |
399 | | FOR my_refgen remember my_var |
400 | { parser->in_my = 0; $<opval>$ = my($4); } | |
d39c26a6 FC |
401 | '(' mexpr ')' mblock cont |
402 | { | |
403 | $$ = block_end( | |
e118fea3 | 404 | $3, |
d39c26a6 FC |
405 | newFOROP(0, |
406 | op_lvalue( | |
407 | newUNOP(OP_REFGEN, 0, | |
e118fea3 | 408 | $<opval>5), |
d39c26a6 | 409 | OP_ENTERLOOP), |
e118fea3 | 410 | $7, $9, $10) |
d39c26a6 FC |
411 | ); |
412 | parser->copline = (line_t)$1; | |
413 | } | |
414 | | FOR REFGEN refgen_topic '(' remember mexpr ')' mblock cont | |
415 | { | |
416 | $$ = block_end($5, newFOROP( | |
417 | 0, op_lvalue(newUNOP(OP_REFGEN, 0, | |
96801525 | 418 | $3), |
d39c26a6 FC |
419 | OP_ENTERLOOP), $6, $8, $9)); |
420 | parser->copline = (line_t)$1; | |
421 | } | |
417a992d | 422 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
423 | { |
424 | $$ = block_end($3, | |
a9f5ab8d | 425 | newFOROP(0, NULL, $4, $6, $7)); |
624fa8bd | 426 | parser->copline = (line_t)$1; |
eae48c89 Z |
427 | } |
428 | | block cont | |
429 | { | |
430 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
431 | $$ = newWHILEOP(0, 1, NULL, |
432 | NULL, $1, $2, 0); | |
eae48c89 | 433 | } |
185c2e96 | 434 | | PACKAGE BAREWORD BAREWORD '{' remember |
eae48c89 | 435 | { |
eae48c89 | 436 | package($3); |
eae48c89 | 437 | if ($2) { |
eae48c89 | 438 | package_version($2); |
eae48c89 Z |
439 | } |
440 | } | |
441 | stmtseq '}' | |
442 | { | |
443 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
444 | $$ = newWHILEOP(0, 1, NULL, |
445 | NULL, block_end($5, $7), NULL, 0); | |
624fa8bd FC |
446 | if (parser->copline > (line_t)$4) |
447 | parser->copline = (line_t)$4; | |
eae48c89 Z |
448 | } |
449 | | sideff ';' | |
450 | { | |
eae48c89 | 451 | $$ = $1; |
eae48c89 | 452 | } |
29d69c3c Z |
453 | | YADAYADA ';' |
454 | { | |
455 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
456 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
457 | } | |
eae48c89 Z |
458 | | ';' |
459 | { | |
a9f5ab8d | 460 | $$ = NULL; |
624fa8bd | 461 | parser->copline = NOLINE; |
5f211341 | 462 | } |
8d063cd8 LW |
463 | ; |
464 | ||
705fe0e5 FC |
465 | /* Format line */ |
466 | formline: THING formarg | |
467 | { OP *list; | |
468 | if ($2) { | |
469 | OP *term = $2; | |
705fe0e5 FC |
470 | list = op_append_elem(OP_LIST, $1, term); |
471 | } | |
472 | else { | |
705fe0e5 | 473 | list = $1; |
705fe0e5 | 474 | } |
624fa8bd FC |
475 | if (parser->copline == NOLINE) |
476 | parser->copline = CopLINE(PL_curcop)-1; | |
477 | else parser->copline--; | |
705fe0e5 | 478 | $$ = newSTATEOP(0, NULL, |
03d05f6e | 479 | op_convert_list(OP_FORMLINE, 0, list)); |
705fe0e5 FC |
480 | } |
481 | ; | |
482 | ||
483 | formarg : /* NULL */ | |
484 | { $$ = NULL; } | |
485 | | FORMLBRACK stmtseq FORMRBRACK | |
486 | { $$ = op_unscope($2); } | |
487 | ; | |
488 | ||
891be019 | 489 | /* An expression which may have a side-effect */ |
a687059c | 490 | sideff : error |
a9f5ab8d | 491 | { $$ = NULL; } |
a687059c | 492 | | expr |
79072805 | 493 | { $$ = $1; } |
a687059c | 494 | | expr IF expr |
b5bbe64a | 495 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 496 | | expr UNLESS expr |
b5bbe64a | 497 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 498 | | expr WHILE expr |
b5bbe64a | 499 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 500 | | expr UNTIL iexpr |
b5bbe64a | 501 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); } |
ecca16b0 | 502 | | expr FOR expr |
a9f5ab8d | 503 | { $$ = newFOROP(0, NULL, $3, $1, NULL); |
624fa8bd | 504 | parser->copline = (line_t)$2; } |
7896dde7 Z |
505 | | expr WHEN expr |
506 | { $$ = newWHENOP($3, op_scope($1)); } | |
79072805 LW |
507 | ; |
508 | ||
891be019 | 509 | /* else and elsif blocks */ |
79072805 | 510 | else : /* NULL */ |
a9f5ab8d | 511 | { $$ = NULL; } |
55497cff | 512 | | ELSE mblock |
3ad73efd Z |
513 | { |
514 | ($2)->op_flags |= OPf_PARENS; | |
515 | $$ = op_scope($2); | |
f05e27e5 | 516 | } |
417a992d | 517 | | ELSIF '(' mexpr ')' mblock else |
624fa8bd | 518 | { parser->copline = (line_t)$1; |
3ad73efd Z |
519 | $$ = newCONDOP(0, |
520 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
521 | op_scope($5), $6); | |
522 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 | 523 | } |
79072805 LW |
524 | ; |
525 | ||
891be019 | 526 | /* Continue blocks */ |
79072805 | 527 | cont : /* NULL */ |
a9f5ab8d | 528 | { $$ = NULL; } |
79072805 | 529 | | CONTINUE block |
b5bbe64a | 530 | { $$ = op_scope($2); } |
79072805 LW |
531 | ; |
532 | ||
a034e688 DM |
533 | /* determine whether there are any new my declarations */ |
534 | mintro : /* NULL */ | |
535 | { $$ = (PL_min_intro_pending && | |
536 | PL_max_intro_pending >= PL_min_intro_pending); | |
537 | intro_my(); } | |
538 | ||
891be019 | 539 | /* Normal expression */ |
8d063cd8 | 540 | nexpr : /* NULL */ |
a9f5ab8d | 541 | { $$ = NULL; } |
8d063cd8 LW |
542 | | sideff |
543 | ; | |
544 | ||
891be019 | 545 | /* Boolean expression */ |
8d063cd8 | 546 | texpr : /* NULL means true */ |
f05e27e5 DM |
547 | { YYSTYPE tmplval; |
548 | (void)scan_num("1", &tmplval); | |
549 | $$ = tmplval.opval; } | |
8d063cd8 LW |
550 | | expr |
551 | ; | |
552 | ||
891be019 | 553 | /* Inverted boolean expression */ |
55497cff | 554 | iexpr : expr |
555 | { $$ = invert(scalar($1)); } | |
556 | ; | |
557 | ||
891be019 | 558 | /* Expression with its own lexical scope */ |
55497cff | 559 | mexpr : expr |
bbce6d69 | 560 | { $$ = $1; intro_my(); } |
561 | ; | |
562 | ||
563 | mnexpr : nexpr | |
564 | { $$ = $1; intro_my(); } | |
55497cff | 565 | ; |
566 | ||
185c2e96 | 567 | formname: BAREWORD { $$ = $1; } |
a9f5ab8d | 568 | | /* NULL */ { $$ = NULL; } |
8d063cd8 LW |
569 | ; |
570 | ||
fa83b5b6 | 571 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
572 | { $$ = start_subparse(FALSE, 0); |
573 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 574 | |
28757baa | 575 | ; |
576 | ||
577 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
578 | { $$ = start_subparse(FALSE, CVf_ANON); |
579 | SAVEFREESV(PL_compcv); } | |
28757baa | 580 | ; |
581 | ||
44a8e56a | 582 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
583 | { $$ = start_subparse(TRUE, 0); |
584 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 585 | ; |
586 | ||
891be019 | 587 | /* Name of a subroutine - must be a bareword, could be special */ |
185c2e96 | 588 | subname : BAREWORD |
4210d3f1 | 589 | | PRIVATEREF |
a0d0e21e LW |
590 | ; |
591 | ||
891be019 | 592 | /* Subroutine prototype */ |
4633a7c4 | 593 | proto : /* NULL */ |
a9f5ab8d | 594 | { $$ = NULL; } |
4633a7c4 LW |
595 | | THING |
596 | ; | |
28757baa | 597 | |
891be019 | 598 | /* Optional list of subroutine attributes */ |
09bef843 | 599 | subattrlist: /* NULL */ |
a9f5ab8d | 600 | { $$ = NULL; } |
09bef843 | 601 | | COLONATTR THING |
b5bbe64a | 602 | { $$ = $2; } |
09bef843 | 603 | | COLONATTR |
a9f5ab8d | 604 | { $$ = NULL; } |
09bef843 SB |
605 | ; |
606 | ||
891be019 | 607 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 608 | myattrlist: COLONATTR THING |
b5bbe64a | 609 | { $$ = $2; } |
09bef843 | 610 | | COLONATTR |
a9f5ab8d | 611 | { $$ = NULL; } |
09bef843 SB |
612 | ; |
613 | ||
abcf453d | 614 | |
d3d9da4a DM |
615 | |
616 | /* -------------------------------------- | |
617 | * subroutine signature parsing | |
618 | */ | |
619 | ||
620 | /* the '' or 'foo' part of a '$' or '@foo' etc signature variable */ | |
49fb8620 | 621 | sigvarname: /* NULL */ |
a9f5ab8d | 622 | { parser->in_my = 0; $$ = NULL; } |
d3d9da4a | 623 | | PRIVATEREF |
49fb8620 | 624 | { parser->in_my = 0; $$ = $1; } |
d3d9da4a DM |
625 | ; |
626 | ||
627 | sigslurpsigil: | |
628 | '@' | |
629 | { $$ = '@'; } | |
630 | | '%' | |
631 | { $$ = '%'; } | |
632 | ||
633 | /* @, %, @foo, %foo */ | |
634 | sigslurpelem: sigslurpsigil sigvarname sigdefault/* def only to catch errors */ | |
635 | { | |
4fa06845 DM |
636 | I32 sigil = $1; |
637 | OP *var = $2; | |
d3d9da4a | 638 | OP *defexpr = $3; |
d3d9da4a | 639 | |
036bbc13 | 640 | if (parser->sig_slurpy) |
d3d9da4a | 641 | yyerror("Multiple slurpy parameters not allowed"); |
036bbc13 | 642 | parser->sig_slurpy = (char)sigil; |
d3d9da4a DM |
643 | |
644 | if (defexpr) | |
bb6b75cd | 645 | yyerror("A slurpy parameter may not have " |
d3d9da4a DM |
646 | "a default value"); |
647 | ||
a9f5ab8d | 648 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
649 | } |
650 | ; | |
651 | ||
652 | /* default part of sub signature scalar element: i.e. '= default_expr' */ | |
653 | sigdefault: /* NULL */ | |
a9f5ab8d | 654 | { $$ = NULL; } |
d3d9da4a DM |
655 | | ASSIGNOP |
656 | { $$ = newOP(OP_NULL, 0); } | |
657 | | ASSIGNOP term | |
658 | { $$ = $2; } | |
659 | ||
660 | ||
661 | /* subroutine signature scalar element: e.g. '$x', '$=', '$x = $default' */ | |
662 | sigscalarelem: | |
663 | '$' sigvarname sigdefault | |
664 | { | |
665 | OP *var = $2; | |
666 | OP *defexpr = $3; | |
d3d9da4a | 667 | |
036bbc13 | 668 | if (parser->sig_slurpy) |
d3d9da4a DM |
669 | yyerror("Slurpy parameter not last"); |
670 | ||
036bbc13 | 671 | parser->sig_elems++; |
d3d9da4a | 672 | |
d3d9da4a | 673 | if (defexpr) { |
036bbc13 | 674 | parser->sig_optelems++; |
4fa06845 DM |
675 | |
676 | if ( defexpr->op_type == OP_NULL | |
d3d9da4a DM |
677 | && !(defexpr->op_flags & OPf_KIDS)) |
678 | { | |
4fa06845 DM |
679 | /* handle '$=' special case */ |
680 | if (var) | |
681 | yyerror("Optional parameter " | |
682 | "lacks default expression"); | |
d3d9da4a DM |
683 | op_free(defexpr); |
684 | } | |
4fa06845 DM |
685 | else { |
686 | /* a normal '=default' expression */ | |
687 | OP *defop = (OP*)alloc_LOGOP(OP_ARGDEFELEM, | |
688 | defexpr, | |
689 | LINKLIST(defexpr)); | |
690 | /* re-purpose op_targ to hold @_ index */ | |
6daeaaa3 | 691 | defop->op_targ = |
036bbc13 | 692 | (PADOFFSET)(parser->sig_elems - 1); |
4fa06845 DM |
693 | |
694 | if (var) { | |
695 | var->op_flags |= OPf_STACKED; | |
696 | (void)op_sibling_splice(var, | |
697 | NULL, 0, defop); | |
698 | scalar(defop); | |
699 | } | |
700 | else | |
701 | var = newUNOP(OP_NULL, 0, defop); | |
702 | ||
703 | LINKLIST(var); | |
704 | /* NB: normally the first child of a | |
705 | * logop is executed before the logop, | |
706 | * and it pushes a boolean result | |
707 | * ready for the logop. For ARGDEFELEM, | |
708 | * the op itself does the boolean | |
709 | * calculation, so set the first op to | |
710 | * it instead. | |
711 | */ | |
712 | var->op_next = defop; | |
713 | defexpr->op_next = var; | |
d3d9da4a DM |
714 | } |
715 | } | |
716 | else { | |
036bbc13 | 717 | if (parser->sig_optelems) |
d3d9da4a DM |
718 | yyerror("Mandatory parameter " |
719 | "follows optional parameter"); | |
d3d9da4a DM |
720 | } |
721 | ||
a9f5ab8d | 722 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
723 | } |
724 | ; | |
725 | ||
726 | ||
727 | /* subroutine signature element: e.g. '$x = $default' or '%h' */ | |
728 | sigelem: sigscalarelem | |
49fb8620 | 729 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a | 730 | | sigslurpelem |
49fb8620 | 731 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a DM |
732 | ; |
733 | ||
734 | /* list of subroutine signature elements */ | |
735 | siglist: | |
736 | siglist ',' | |
737 | { $$ = $1; } | |
738 | | siglist ',' sigelem | |
30d9c59b | 739 | { |
d3d9da4a | 740 | $$ = op_append_list(OP_LINESEQ, $1, $3); |
30d9c59b | 741 | } |
d3d9da4a DM |
742 | | sigelem %prec PREC_LOW |
743 | { $$ = $1; } | |
30d9c59b Z |
744 | ; |
745 | ||
d3d9da4a DM |
746 | /* () or (....) */ |
747 | siglistornull: /* NULL */ | |
a9f5ab8d | 748 | { $$ = NULL; } |
d3d9da4a DM |
749 | | siglist |
750 | { $$ = $1; } | |
751 | ||
75230cc1 DM |
752 | /* optional subroutine signature */ |
753 | optsubsignature: /* NULL */ | |
754 | { $$ = NULL; } | |
755 | | subsignature | |
756 | { $$ = $1; } | |
757 | ||
d3d9da4a | 758 | /* Subroutine signature */ |
75230cc1 | 759 | subsignature: '(' |
d3d9da4a DM |
760 | { |
761 | ENTER; | |
036bbc13 FC |
762 | SAVEIV(parser->sig_elems); |
763 | SAVEIV(parser->sig_optelems); | |
764 | SAVEI8(parser->sig_slurpy); | |
765 | parser->sig_elems = 0; | |
766 | parser->sig_optelems = 0; | |
767 | parser->sig_slurpy = 0; | |
49fb8620 | 768 | parser->in_my = KEY_sigvar; |
d3d9da4a DM |
769 | } |
770 | siglistornull | |
771 | ')' | |
772 | { | |
4fa06845 DM |
773 | OP *sigops = $3; |
774 | UNOP_AUX_item *aux; | |
775 | OP *check; | |
d3d9da4a | 776 | |
894f226e DM |
777 | if (!FEATURE_SIGNATURES_IS_ENABLED) |
778 | Perl_croak(aTHX_ "Experimental " | |
779 | "subroutine signatures not enabled"); | |
d3d9da4a DM |
780 | |
781 | /* We shouldn't get here otherwise */ | |
782 | Perl_ck_warner_d(aTHX_ | |
783 | packWARN(WARN_EXPERIMENTAL__SIGNATURES), | |
784 | "The signatures feature is experimental"); | |
785 | ||
4fa06845 DM |
786 | aux = (UNOP_AUX_item*)PerlMemShared_malloc( |
787 | sizeof(UNOP_AUX_item) * 3); | |
036bbc13 FC |
788 | aux[0].iv = parser->sig_elems; |
789 | aux[1].iv = parser->sig_optelems; | |
790 | aux[2].iv = parser->sig_slurpy; | |
4fa06845 DM |
791 | check = newUNOP_AUX(OP_ARGCHECK, 0, NULL, aux); |
792 | sigops = op_prepend_elem(OP_LINESEQ, check, sigops); | |
793 | sigops = op_prepend_elem(OP_LINESEQ, | |
794 | newSTATEOP(0, NULL, NULL), | |
795 | sigops); | |
796 | /* a nextstate at the end handles context | |
797 | * correctly for an empty sub body */ | |
798 | $$ = op_append_elem(OP_LINESEQ, | |
799 | sigops, | |
800 | newSTATEOP(0, NULL, NULL)); | |
d3d9da4a | 801 | |
49fb8620 | 802 | parser->in_my = 0; |
a8c56356 DM |
803 | /* tell the toker that attrributes can follow |
804 | * this sig, but only so that the toker | |
805 | * can skip through any (illegal) trailing | |
806 | * attribute text then give a useful error | |
807 | * message about "attributes before sig", | |
808 | * rather than falling over ina mess at | |
809 | * unrecognised syntax. | |
810 | */ | |
811 | parser->expect = XATTRBLOCK; | |
812 | parser->sig_seen = TRUE; | |
d3d9da4a DM |
813 | LEAVE; |
814 | } | |
815 | ; | |
816 | ||
75230cc1 DM |
817 | /* Optional subroutine body (for named subroutine declaration) */ |
818 | optsubbody: subbody { $$ = $1; } | |
819 | | ';' { $$ = NULL; } | |
820 | ; | |
821 | ||
822 | ||
823 | /* Subroutine body (without signature) */ | |
824 | subbody: remember '{' stmtseq '}' | |
825 | { | |
826 | if (parser->copline > (line_t)$2) | |
827 | parser->copline = (line_t)$2; | |
828 | $$ = block_end($1, $3); | |
829 | } | |
830 | ; | |
831 | ||
832 | ||
833 | /* optional [ Subroutine body with optional signature ] (for named | |
834 | * subroutine declaration) */ | |
835 | optsigsubbody: sigsubbody { $$ = $1; } | |
836 | | ';' { $$ = NULL; } | |
d3d9da4a | 837 | |
75230cc1 DM |
838 | /* Subroutine body with optional signature */ |
839 | sigsubbody: remember optsubsignature '{' stmtseq '}' | |
894f226e DM |
840 | { |
841 | if (parser->copline > (line_t)$3) | |
842 | parser->copline = (line_t)$3; | |
843 | $$ = block_end($1, | |
844 | op_append_list(OP_LINESEQ, $2, $4)); | |
845 | } | |
846 | ; | |
847 | ||
d3d9da4a | 848 | |
891be019 | 849 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 850 | expr : expr ANDOP expr |
b5bbe64a | 851 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 852 | | expr OROP expr |
b5bbe64a | 853 | { $$ = newLOGOP($2, 0, $1, $3); } |
c963b151 | 854 | | expr DOROP expr |
b5bbe64a | 855 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
09b1cffe | 856 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
857 | ; |
858 | ||
891be019 | 859 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 860 | listexpr: listexpr ',' |
b5bbe64a | 861 | { $$ = $1; } |
09b1cffe | 862 | | listexpr ',' term |
abcf453d | 863 | { |
29522234 | 864 | OP* term = $3; |
2fcb4757 | 865 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 866 | } |
fad39ff1 | 867 | | term %prec PREC_LOW |
8d063cd8 LW |
868 | ; |
869 | ||
891be019 | 870 | /* List operators */ |
09b1cffe | 871 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
03d05f6e | 872 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 873 | op_prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); |
f05e27e5 | 874 | } |
891be019 | 875 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
03d05f6e | 876 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 877 | op_prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); |
f05e27e5 | 878 | } |
417a992d | 879 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
03d05f6e | 880 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
881 | op_append_elem(OP_LIST, |
882 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
b46e009d | 883 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 884 | } |
891be019 | 885 | | term ARROW method /* $foo->bar */ |
03d05f6e | 886 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 887 | op_append_elem(OP_LIST, scalar($1), |
b46e009d | 888 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 889 | } |
09b1cffe | 890 | | METHOD indirob optlistexpr /* new Class @args */ |
03d05f6e | 891 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
892 | op_append_elem(OP_LIST, |
893 | op_prepend_elem(OP_LIST, $2, $3), | |
b46e009d | 894 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 895 | } |
09b1cffe | 896 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
03d05f6e | 897 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
898 | op_append_elem(OP_LIST, |
899 | op_prepend_elem(OP_LIST, $2, $4), | |
b46e009d | 900 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 901 | } |
09b1cffe | 902 | | LSTOP optlistexpr /* print @args */ |
03d05f6e | 903 | { $$ = op_convert_list($1, 0, $2); } |
09b1cffe | 904 | | FUNC '(' optexpr ')' /* print (@args) */ |
03d05f6e | 905 | { $$ = op_convert_list($1, 0, $3); } |
718a7425 | 906 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 907 | { SvREFCNT_inc_simple_void(PL_compcv); |
a9f5ab8d | 908 | $<opval>$ = newANONATTRSUB($2, 0, NULL, $3); } |
09b1cffe | 909 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 910 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
911 | op_append_elem(OP_LIST, |
912 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 913 | } |
a687059c LW |
914 | ; |
915 | ||
891be019 | 916 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
917 | method : METHOD |
918 | | scalar | |
919 | ; | |
920 | ||
891be019 | 921 | /* Some kind of subscripted expression */ |
89f35911 | 922 | subscripted: gelem '{' expr ';' '}' /* *main::{something} */ |
891be019 SC |
923 | /* In this and all the hash accessors, ';' is |
924 | * provided by the tokeniser */ | |
5c86b6df | 925 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
891be019 | 926 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 | 927 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
f05e27e5 | 928 | } |
891be019 | 929 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
930 | { $$ = newBINOP(OP_AELEM, 0, |
931 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 932 | scalar($4)); |
f05e27e5 | 933 | } |
891be019 | 934 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
935 | { $$ = newBINOP(OP_AELEM, 0, |
936 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 937 | scalar($3)); |
f05e27e5 | 938 | } |
5a63ceef | 939 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 940 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
f05e27e5 | 941 | } |
891be019 | 942 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
943 | { $$ = newBINOP(OP_HELEM, 0, |
944 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 945 | jmaybe($4)); } |
891be019 | 946 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
947 | { $$ = newBINOP(OP_HELEM, 0, |
948 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 949 | jmaybe($3)); } |
891be019 | 950 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 951 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
097ff42c Z |
952 | newCVREF(0, scalar($1))); |
953 | if (parser->expect == XBLOCK) | |
954 | parser->expect = XOPERATOR; | |
955 | } | |
891be019 | 956 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 957 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 958 | op_append_elem(OP_LIST, $4, |
097ff42c Z |
959 | newCVREF(0, scalar($1)))); |
960 | if (parser->expect == XBLOCK) | |
961 | parser->expect = XOPERATOR; | |
962 | } | |
fad39ff1 | 963 | |
417a992d | 964 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 965 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 966 | op_append_elem(OP_LIST, $3, |
097ff42c Z |
967 | newCVREF(0, scalar($1)))); |
968 | if (parser->expect == XBLOCK) | |
969 | parser->expect = XOPERATOR; | |
970 | } | |
417a992d | 971 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 972 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
097ff42c Z |
973 | newCVREF(0, scalar($1))); |
974 | if (parser->expect == XBLOCK) | |
975 | parser->expect = XOPERATOR; | |
976 | } | |
9a9798c2 | 977 | | '(' expr ')' '[' expr ']' /* list slice */ |
b5bbe64a | 978 | { $$ = newSLICEOP(0, $5, $2); } |
ea25a9b2 | 979 | | QWLIST '[' expr ']' /* list literal slice */ |
b5bbe64a | 980 | { $$ = newSLICEOP(0, $3, $1); } |
9a9798c2 | 981 | | '(' ')' '[' expr ']' /* empty list slice! */ |
a9f5ab8d | 982 | { $$ = newSLICEOP(0, $4, NULL); } |
891be019 | 983 | ; |
fad39ff1 | 984 | |
891be019 | 985 | /* Binary operators between terms */ |
3f5e9543 | 986 | termbinop: term ASSIGNOP term /* $x = $y, $x += $y */ |
b5bbe64a | 987 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } |
891be019 | 988 | | term POWOP term /* $x ** $y */ |
b5bbe64a | 989 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 990 | | term MULOP term /* $x * $y, $x x $y */ |
b5bbe64a | 991 | { if ($2 != OP_REPEAT) |
79072805 | 992 | scalar($1); |
b5bbe64a | 993 | $$ = newBINOP($2, 0, $1, scalar($3)); |
f05e27e5 | 994 | } |
891be019 | 995 | | term ADDOP term /* $x + $y */ |
b5bbe64a | 996 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 997 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
b5bbe64a | 998 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 999 | | term RELOP term /* $x > $y, etc. */ |
b5bbe64a | 1000 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1001 | | term EQOP term /* $x == $y, $x eq $y */ |
b5bbe64a | 1002 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1003 | | term BITANDOP term /* $x & $y */ |
b5bbe64a | 1004 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1005 | | term BITOROP term /* $x | $y */ |
b5bbe64a | 1006 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1007 | | term DOTDOT term /* $x..$y, $x...$y */ |
b5bbe64a | 1008 | { $$ = newRANGE($2, scalar($1), scalar($3)); } |
891be019 | 1009 | | term ANDAND term /* $x && $y */ |
b5bbe64a | 1010 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
891be019 | 1011 | | term OROR term /* $x || $y */ |
b5bbe64a | 1012 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
c963b151 | 1013 | | term DORDOR term /* $x // $y */ |
b5bbe64a | 1014 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
891be019 | 1015 | | term MATCHOP term /* $x =~ /$y/ */ |
b5bbe64a | 1016 | { $$ = bind_match($2, $1, $3); } |
891be019 | 1017 | ; |
8d063cd8 | 1018 | |
891be019 SC |
1019 | /* Unary operators and terms */ |
1020 | termunop : '-' term %prec UMINUS /* -$x */ | |
b5bbe64a | 1021 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
891be019 | 1022 | | '+' term %prec UMINUS /* +$x */ |
b5bbe64a JH |
1023 | { $$ = $2; } |
1024 | ||
891be019 | 1025 | | '!' term /* !$x */ |
b5bbe64a | 1026 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1027 | | '~' term /* ~$x */ |
8823cb89 | 1028 | { $$ = newUNOP($1, 0, scalar($2)); } |
891be019 | 1029 | | term POSTINC /* $x++ */ |
79072805 | 1030 | { $$ = newUNOP(OP_POSTINC, 0, |
b5bbe64a | 1031 | op_lvalue(scalar($1), OP_POSTINC)); } |
891be019 | 1032 | | term POSTDEC /* $x-- */ |
79072805 | 1033 | { $$ = newUNOP(OP_POSTDEC, 0, |
b5bbe64a | 1034 | op_lvalue(scalar($1), OP_POSTDEC));} |
cc624add | 1035 | | term POSTJOIN /* implicit join after interpolated ->@ */ |
03d05f6e | 1036 | { $$ = op_convert_list(OP_JOIN, 0, |
cc624add FC |
1037 | op_append_elem( |
1038 | OP_LIST, | |
1039 | newSVREF(scalar( | |
1040 | newSVOP(OP_CONST,0, | |
1041 | newSVpvs("\"")) | |
1042 | )), | |
1043 | $1 | |
1044 | )); | |
cc624add | 1045 | } |
891be019 | 1046 | | PREINC term /* ++$x */ |
79072805 | 1047 | { $$ = newUNOP(OP_PREINC, 0, |
b5bbe64a | 1048 | op_lvalue(scalar($2), OP_PREINC)); } |
891be019 | 1049 | | PREDEC term /* --$x */ |
79072805 | 1050 | { $$ = newUNOP(OP_PREDEC, 0, |
b5bbe64a | 1051 | op_lvalue(scalar($2), OP_PREDEC)); } |
891be019 SC |
1052 | |
1053 | ; | |
1054 | ||
1055 | /* Constructors for anonymous data */ | |
1056 | anonymous: '[' expr ']' | |
b5bbe64a | 1057 | { $$ = newANONLIST($2); } |
891be019 | 1058 | | '[' ']' |
a9f5ab8d | 1059 | { $$ = newANONLIST(NULL);} |
891be019 | 1060 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
b5bbe64a | 1061 | { $$ = newANONHASH($2); } |
891be019 | 1062 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
a9f5ab8d | 1063 | { $$ = newANONHASH(NULL); } |
75230cc1 | 1064 | | ANONSUB startanonsub proto subattrlist subbody %prec '(' |
436ddf68 DM |
1065 | { SvREFCNT_inc_simple_void(PL_compcv); |
1066 | $$ = newANONATTRSUB($2, $3, $4, $5); } | |
75230cc1 | 1067 | | ANON_SIGSUB startanonsub subattrlist sigsubbody %prec '(' |
5a5094bd | 1068 | { SvREFCNT_inc_simple_void(PL_compcv); |
75230cc1 | 1069 | $$ = newANONATTRSUB($2, NULL, $3, $4); } |
891be019 SC |
1070 | ; |
1071 | ||
1072 | /* Things called with "do" */ | |
1073 | termdo : DO term %prec UNIOP /* do $filename */ | |
b5bbe64a | 1074 | { $$ = dofile($2, $1);} |
891be019 | 1075 | | DO block %prec '(' /* do { code */ |
b5bbe64a | 1076 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2));} |
891be019 SC |
1077 | ; |
1078 | ||
1079 | term : termbinop | |
1080 | | termunop | |
1081 | | anonymous | |
1082 | | termdo | |
e9bdcc27 | 1083 | | term '?' term ':' term |
b5bbe64a | 1084 | { $$ = newCONDOP(0, $1, $3, $5); } |
891be019 | 1085 | | REFGEN term /* \$x, \@y, \%z */ |
070d3cb6 | 1086 | { $$ = newUNOP(OP_REFGEN, 0, $2); } |
e118fea3 FC |
1087 | | MY REFGEN term |
1088 | { $$ = newUNOP(OP_REFGEN, 0, localize($3,1)); } | |
09bef843 SB |
1089 | | myattrterm %prec UNIOP |
1090 | { $$ = $1; } | |
1091 | | LOCAL term %prec UNIOP | |
28383d1a | 1092 | { $$ = localize($2,0); } |
a0d0e21e | 1093 | | '(' expr ')' |
b5bbe64a | 1094 | { $$ = sawparens($2); } |
ea25a9b2 | 1095 | | QWLIST |
b5bbe64a | 1096 | { $$ = $1; } |
8d063cd8 | 1097 | | '(' ')' |
b5bbe64a | 1098 | { $$ = sawparens(newNULLLIST()); } |
79072805 | 1099 | | scalar %prec '(' |
8d063cd8 | 1100 | { $$ = $1; } |
79072805 | 1101 | | star %prec '(' |
8d063cd8 | 1102 | { $$ = $1; } |
79072805 | 1103 | | hsh %prec '(' |
8d063cd8 | 1104 | { $$ = $1; } |
79072805 | 1105 | | ary %prec '(' |
8d063cd8 | 1106 | { $$ = $1; } |
891be019 | 1107 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1108 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1109 | | subscripted |
1110 | { $$ = $1; } | |
89f35911 | 1111 | | sliceme '[' expr ']' /* array slice */ |
2fcb4757 | 1112 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1113 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1114 | newLISTOP(OP_ASLICE, 0, |
1115 | list($3), | |
f05e27e5 | 1116 | ref($1, OP_ASLICE))); |
429a2555 FC |
1117 | if ($$ && $1) |
1118 | $$->op_private |= | |
1119 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1120 | } |
76eba8ab | 1121 | | kvslice '[' expr ']' /* array key/value slice */ |
6dd3e0f2 RZ |
1122 | { $$ = op_prepend_elem(OP_KVASLICE, |
1123 | newOP(OP_PUSHMARK, 0), | |
1124 | newLISTOP(OP_KVASLICE, 0, | |
1125 | list($3), | |
1126 | ref(oopsAV($1), OP_KVASLICE))); | |
95a31aad FC |
1127 | if ($$ && $1) |
1128 | $$->op_private |= | |
1129 | $1->op_private & OPpSLICEWARNING; | |
6dd3e0f2 | 1130 | } |
89f35911 | 1131 | | sliceme '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1132 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1133 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1134 | newLISTOP(OP_HSLICE, 0, |
1135 | list($3), | |
a0d0e21e | 1136 | ref(oopsHV($1), OP_HSLICE))); |
429a2555 FC |
1137 | if ($$ && $1) |
1138 | $$->op_private |= | |
1139 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1140 | } |
76eba8ab | 1141 | | kvslice '{' expr ';' '}' /* %hash{@keys} */ |
5cae3edb RZ |
1142 | { $$ = op_prepend_elem(OP_KVHSLICE, |
1143 | newOP(OP_PUSHMARK, 0), | |
1144 | newLISTOP(OP_KVHSLICE, 0, | |
1145 | list($3), | |
1146 | ref($1, OP_KVHSLICE))); | |
95a31aad FC |
1147 | if ($$ && $1) |
1148 | $$->op_private |= | |
1149 | $1->op_private & OPpSLICEWARNING; | |
5cae3edb | 1150 | } |
79072805 LW |
1151 | | THING %prec '(' |
1152 | { $$ = $1; } | |
891be019 | 1153 | | amper /* &foo; */ |
c07a80fd | 1154 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
fb602e32 | 1155 | | amper '(' ')' /* &foo() or foo() */ |
f05e27e5 | 1156 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
f05e27e5 | 1157 | } |
fb602e32 | 1158 | | amper '(' expr ')' /* &foo(@args) or foo(@args) */ |
f05e27e5 DM |
1159 | { |
1160 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1161 | op_append_elem(OP_LIST, $3, scalar($1))); |
f05e27e5 | 1162 | } |
fb602e32 | 1163 | | NOAMP subname optlistexpr /* foo @args (no parens) */ |
a0d0e21e | 1164 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1165 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 | 1166 | } |
89f35911 | 1167 | | term ARROW '$' '*' |
b5bbe64a | 1168 | { $$ = newSVREF($1); } |
89f35911 | 1169 | | term ARROW '@' '*' |
b5bbe64a | 1170 | { $$ = newAVREF($1); } |
89f35911 | 1171 | | term ARROW '%' '*' |
b5bbe64a | 1172 | { $$ = newHVREF($1); } |
89f35911 FC |
1173 | | term ARROW '&' '*' |
1174 | { $$ = newUNOP(OP_ENTERSUB, 0, | |
b5bbe64a | 1175 | scalar(newCVREF($3,$1))); } |
89f35911 | 1176 | | term ARROW '*' '*' %prec '(' |
b5bbe64a | 1177 | { $$ = newGVREF(0,$1); } |
891be019 | 1178 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
b5bbe64a JH |
1179 | { $$ = newOP($1, OPf_SPECIAL); |
1180 | PL_hints |= HINT_BLOCK_SCOPE; } | |
a0d0e21e | 1181 | | LOOPEX term |
b5bbe64a | 1182 | { $$ = newLOOPEX($1,$2); } |
09b1cffe | 1183 | | NOTOP listexpr /* not $foo */ |
b5bbe64a | 1184 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1185 | | UNIOP /* Unary op, $_ implied */ |
b5bbe64a | 1186 | { $$ = newOP($1, 0); } |
f05e27e5 | 1187 | | UNIOP block /* eval { foo }* */ |
b5bbe64a | 1188 | { $$ = newUNOP($1, 0, $2); } |
891be019 | 1189 | | UNIOP term /* Unary op */ |
b5bbe64a | 1190 | { $$ = newUNOP($1, 0, $2); } |
d2fdf8fd | 1191 | | REQUIRE /* require, $_ implied */ |
b5bbe64a | 1192 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); } |
d2fdf8fd | 1193 | | REQUIRE term /* require Foo */ |
b5bbe64a | 1194 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); } |
3cd0a11a RGS |
1195 | | UNIOPSUB |
1196 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1197 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1198 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1199 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1200 | | FUNC0 /* Nullary operator */ |
b5bbe64a | 1201 | { $$ = newOP($1, 0); } |
ae986130 | 1202 | | FUNC0 '(' ')' |
b5bbe64a | 1203 | { $$ = newOP($1, 0);} |
7eb971ee FC |
1204 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1205 | { $$ = $1; } | |
1206 | | FUNC0OP '(' ')' | |
b5bbe64a | 1207 | { $$ = $1; } |
891be019 | 1208 | | FUNC0SUB /* Sub treated as nullop */ |
b5bbe64a | 1209 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
891be019 | 1210 | | FUNC1 '(' ')' /* not () */ |
b5bbe64a JH |
1211 | { $$ = ($1 == OP_NOT) |
1212 | ? newUNOP($1, 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1213 | : newOP($1, OPf_SPECIAL); } | |
891be019 | 1214 | | FUNC1 '(' expr ')' /* not($foo) */ |
b5bbe64a | 1215 | { $$ = newUNOP($1, 0, $3); } |
d63c20f2 DM |
1216 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1217 | { | |
1218 | if ( $1->op_type != OP_TRANS | |
1219 | && $1->op_type != OP_TRANSR | |
1220 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1221 | { | |
1222 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1223 | SAVEFREESV(PL_compcv); | |
1224 | } else | |
1225 | $<ival>$ = 0; | |
1226 | } | |
9b6b7be8 FC |
1227 | '(' listexpr optrepl ')' |
1228 | { $$ = pmruntime($1, $4, $5, 1, $<ival>2); } | |
185c2e96 | 1229 | | BAREWORD |
378cc40b | 1230 | | listop |
88e1f1a2 | 1231 | | PLUGEXPR |
8d063cd8 LW |
1232 | ; |
1233 | ||
891be019 | 1234 | /* "my" declarations, with optional attributes */ |
09bef843 | 1235 | myattrterm: MY myterm myattrlist |
b5bbe64a | 1236 | { $$ = my_attrs($2,$3); } |
09bef843 | 1237 | | MY myterm |
28383d1a | 1238 | { $$ = localize($2,1); } |
e118fea3 FC |
1239 | | MY REFGEN myterm myattrlist |
1240 | { $$ = newUNOP(OP_REFGEN, 0, my_attrs($3,$4)); } | |
09bef843 SB |
1241 | ; |
1242 | ||
891be019 | 1243 | /* Things that can be "my"'d */ |
09bef843 | 1244 | myterm : '(' expr ')' |
b5bbe64a | 1245 | { $$ = sawparens($2); } |
09bef843 | 1246 | | '(' ')' |
b5bbe64a JH |
1247 | { $$ = sawparens(newNULLLIST()); } |
1248 | ||
09bef843 SB |
1249 | | scalar %prec '(' |
1250 | { $$ = $1; } | |
1251 | | hsh %prec '(' | |
1252 | { $$ = $1; } | |
1253 | | ary %prec '(' | |
1254 | { $$ = $1; } | |
1255 | ; | |
1256 | ||
891be019 | 1257 | /* Basic list expressions */ |
09b1cffe | 1258 | optlistexpr: /* NULL */ %prec PREC_LOW |
a9f5ab8d | 1259 | { $$ = NULL; } |
09b1cffe | 1260 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1261 | { $$ = $1; } |
1262 | ; | |
1263 | ||
09b1cffe | 1264 | optexpr: /* NULL */ |
a9f5ab8d | 1265 | { $$ = NULL; } |
79072805 LW |
1266 | | expr |
1267 | { $$ = $1; } | |
1268 | ; | |
1269 | ||
9b6b7be8 | 1270 | optrepl: /* NULL */ |
a9f5ab8d | 1271 | { $$ = NULL; } |
9b6b7be8 FC |
1272 | | '/' expr |
1273 | { $$ = $2; } | |
1274 | ; | |
1275 | ||
891be019 SC |
1276 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1277 | lexical */ | |
55497cff | 1278 | my_scalar: scalar |
624fa8bd | 1279 | { parser->in_my = 0; $$ = my($1); } |
55497cff | 1280 | ; |
1281 | ||
d39c26a6 FC |
1282 | my_var : scalar |
1283 | | ary | |
1284 | | hsh | |
1285 | ; | |
1286 | ||
1287 | refgen_topic: my_var | |
1288 | | amper | |
1289 | ; | |
1290 | ||
e118fea3 FC |
1291 | my_refgen: MY REFGEN |
1292 | | REFGEN MY | |
1293 | ; | |
1294 | ||
79072805 | 1295 | amper : '&' indirob |
b5bbe64a | 1296 | { $$ = newCVREF($1,$2); } |
a687059c LW |
1297 | ; |
1298 | ||
79072805 | 1299 | scalar : '$' indirob |
b5bbe64a | 1300 | { $$ = newSVREF($2); } |
a687059c LW |
1301 | ; |
1302 | ||
79072805 | 1303 | ary : '@' indirob |
f05e27e5 | 1304 | { $$ = newAVREF($2); |
b5bbe64a | 1305 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1306 | } |
79072805 LW |
1307 | ; |
1308 | ||
1309 | hsh : '%' indirob | |
f05e27e5 | 1310 | { $$ = newHVREF($2); |
b5bbe64a | 1311 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1312 | } |
79072805 LW |
1313 | ; |
1314 | ||
1315 | arylen : DOLSHARP indirob | |
b5bbe64a | 1316 | { $$ = newAVREF($2); } |
ff25e5db | 1317 | | term ARROW DOLSHARP '*' |
b5bbe64a | 1318 | { $$ = newAVREF($1); } |
79072805 LW |
1319 | ; |
1320 | ||
1321 | star : '*' indirob | |
b5bbe64a | 1322 | { $$ = newGVREF(0,$2); } |
79072805 LW |
1323 | ; |
1324 | ||
89f35911 FC |
1325 | sliceme : ary |
1326 | | term ARROW '@' | |
b5bbe64a | 1327 | { $$ = newAVREF($1); } |
89f35911 FC |
1328 | ; |
1329 | ||
76eba8ab FC |
1330 | kvslice : hsh |
1331 | | term ARROW '%' | |
b5bbe64a | 1332 | { $$ = newHVREF($1); } |
76eba8ab FC |
1333 | ; |
1334 | ||
89f35911 FC |
1335 | gelem : star |
1336 | | term ARROW '*' | |
b5bbe64a | 1337 | { $$ = newGVREF(0,$1); } |
89f35911 FC |
1338 | ; |
1339 | ||
891be019 | 1340 | /* Indirect objects */ |
185c2e96 | 1341 | indirob : BAREWORD |
79072805 | 1342 | { $$ = scalar($1); } |
fad39ff1 | 1343 | | scalar %prec PREC_LOW |
f05e27e5 | 1344 | { $$ = scalar($1); } |
79072805 | 1345 | | block |
3ad73efd | 1346 | { $$ = op_scope($1); } |
79072805 | 1347 | |
93a17b20 LW |
1348 | | PRIVATEREF |
1349 | { $$ = $1; } | |
8d063cd8 | 1350 | ; |