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 |
01719201 | 53 | %token <opval> 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 | |
69afcc21 | 63 | %token <ival> SUBLEXSTART SUBLEXEND |
f05e27e5 | 64 | |
727a8fe5 | 65 | %type <ival> grammar remember mremember |
f05e27e5 | 66 | %type <ival> startsub startanonsub startformsub |
b5bbe64a | 67 | |
b5a64814 | 68 | %type <ival> mintro |
f05e27e5 | 69 | |
8e720305 | 70 | %type <opval> stmtseq fullstmt labfullstmt barestmt block mblock else |
fad39ff1 | 71 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
76eba8ab | 72 | %type <opval> sliceme kvslice gelem |
08b3e84f | 73 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr |
9b6b7be8 | 74 | %type <opval> optlistexpr optexpr optrepl indirob listop method |
75230cc1 | 75 | %type <opval> formname subname proto cont my_scalar my_var |
d39c26a6 | 76 | %type <opval> refgen_topic formblock |
f05e27e5 | 77 | %type <opval> subattrlist myattrlist myattrterm myterm |
75230cc1 | 78 | %type <opval> termbinop termunop anonymous termdo |
d3d9da4a DM |
79 | %type <ival> sigslurpsigil |
80 | %type <opval> sigvarname sigdefault sigscalarelem sigslurpelem | |
75230cc1 DM |
81 | %type <opval> sigelem siglist siglistornull subsignature optsubsignature |
82 | %type <opval> subbody optsubbody sigsubbody optsigsubbody | |
705fe0e5 | 83 | %type <opval> formstmtseq formline formarg |
79072805 | 84 | |
b5bbe64a | 85 | %nonassoc <ival> PREC_LOW |
fad39ff1 SM |
86 | %nonassoc LOOPEX |
87 | ||
b5bbe64a JH |
88 | %left <ival> OROP DOROP |
89 | %left <ival> ANDOP | |
90 | %right <ival> NOTOP | |
36477c24 | 91 | %nonassoc LSTOP LSTOPSUB |
b5bbe64a JH |
92 | %left <ival> ',' |
93 | %right <ival> ASSIGNOP | |
94 | %right <ival> '?' ':' | |
29d69c3c | 95 | %nonassoc DOTDOT |
b5bbe64a JH |
96 | %left <ival> OROR DORDOR |
97 | %left <ival> ANDAND | |
98 | %left <ival> BITOROP | |
99 | %left <ival> BITANDOP | |
a687059c LW |
100 | %nonassoc EQOP |
101 | %nonassoc RELOP | |
36477c24 | 102 | %nonassoc UNIOP UNIOPSUB |
20515881 | 103 | %nonassoc REQUIRE |
b5bbe64a | 104 | %left <ival> SHIFTOP |
a687059c LW |
105 | %left ADDOP |
106 | %left MULOP | |
b5bbe64a JH |
107 | %left <ival> MATCHOP |
108 | %right <ival> '!' '~' UMINUS REFGEN | |
109 | %right <ival> POWOP | |
110 | %nonassoc <ival> PREINC PREDEC POSTINC POSTDEC POSTJOIN | |
111 | %left <ival> ARROW | |
112 | %nonassoc <ival> ')' | |
113 | %left <ival> '(' | |
fad39ff1 | 114 | %left '[' '{' |
8d063cd8 LW |
115 | |
116 | %% /* RULES */ | |
117 | ||
28ac2b49 | 118 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
119 | grammar : GRAMPROG |
120 | { | |
624fa8bd | 121 | parser->expect = XSTATE; |
5a2060e2 | 122 | $<ival>$ = 0; |
727a8fe5 Z |
123 | } |
124 | remember stmtseq | |
125 | { | |
126 | newPROG(block_end($3,$4)); | |
8635e3c2 | 127 | PL_compiling.cop_seq = 0; |
727a8fe5 Z |
128 | $$ = 0; |
129 | } | |
78cdf107 Z |
130 | | GRAMEXPR |
131 | { | |
132 | parser->expect = XTERM; | |
5a2060e2 | 133 | $<ival>$ = 0; |
78cdf107 | 134 | } |
09b1cffe | 135 | optexpr |
78cdf107 Z |
136 | { |
137 | PL_eval_root = $3; | |
138 | $$ = 0; | |
139 | } | |
e53d8f76 Z |
140 | | GRAMBLOCK |
141 | { | |
142 | parser->expect = XBLOCK; | |
5a2060e2 | 143 | $<ival>$ = 0; |
e53d8f76 Z |
144 | } |
145 | block | |
146 | { | |
5f211341 | 147 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
148 | PL_eval_root = $3; |
149 | $$ = 0; | |
150 | yyunlex(); | |
0f8490d1 | 151 | parser->yychar = yytoken = YYEOF; |
8359b381 Z |
152 | } |
153 | | GRAMBARESTMT | |
154 | { | |
155 | parser->expect = XSTATE; | |
5a2060e2 | 156 | $<ival>$ = 0; |
8359b381 Z |
157 | } |
158 | barestmt | |
159 | { | |
160 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
161 | PL_eval_root = $3; |
162 | $$ = 0; | |
163 | yyunlex(); | |
0f8490d1 | 164 | parser->yychar = yytoken = YYEOF; |
e53d8f76 | 165 | } |
9eb5c532 | 166 | | GRAMFULLSTMT |
28ac2b49 | 167 | { |
9eb5c532 | 168 | parser->expect = XSTATE; |
5a2060e2 | 169 | $<ival>$ = 0; |
9eb5c532 Z |
170 | } |
171 | fullstmt | |
172 | { | |
5f211341 | 173 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 174 | PL_eval_root = $3; |
28ac2b49 Z |
175 | $$ = 0; |
176 | yyunlex(); | |
0f8490d1 | 177 | parser->yychar = yytoken = YYEOF; |
28ac2b49 | 178 | } |
07ffcb73 Z |
179 | | GRAMSTMTSEQ |
180 | { | |
181 | parser->expect = XSTATE; | |
5a2060e2 | 182 | $<ival>$ = 0; |
07ffcb73 | 183 | } |
5f211341 | 184 | stmtseq |
07ffcb73 Z |
185 | { |
186 | PL_eval_root = $3; | |
187 | $$ = 0; | |
188 | } | |
189 | ; | |
190 | ||
891be019 | 191 | /* An ordinary block */ |
5f211341 | 192 | block : '{' remember stmtseq '}' |
624fa8bd FC |
193 | { if (parser->copline > (line_t)$1) |
194 | parser->copline = (line_t)$1; | |
f05e27e5 | 195 | $$ = block_end($2, $3); |
f05e27e5 | 196 | } |
a0d0e21e LW |
197 | ; |
198 | ||
7c70caa5 | 199 | /* format body */ |
705fe0e5 | 200 | formblock: '=' remember ';' FORMRBRACK formstmtseq ';' '.' |
624fa8bd FC |
201 | { if (parser->copline > (line_t)$1) |
202 | parser->copline = (line_t)$1; | |
705fe0e5 | 203 | $$ = block_end($2, $5); |
7c70caa5 FC |
204 | } |
205 | ; | |
206 | ||
55497cff | 207 | remember: /* NULL */ /* start a full lexical scope */ |
34b54951 FC |
208 | { $$ = block_start(TRUE); |
209 | parser->parsed_sub = 0; } | |
55497cff | 210 | ; |
211 | ||
5f211341 | 212 | mblock : '{' mremember stmtseq '}' |
624fa8bd FC |
213 | { if (parser->copline > (line_t)$1) |
214 | parser->copline = (line_t)$1; | |
f05e27e5 | 215 | $$ = block_end($2, $3); |
f05e27e5 | 216 | } |
55497cff | 217 | ; |
218 | ||
219 | mremember: /* NULL */ /* start a partial lexical scope */ | |
34b54951 FC |
220 | { $$ = block_start(FALSE); |
221 | parser->parsed_sub = 0; } | |
8d063cd8 LW |
222 | ; |
223 | ||
eae48c89 | 224 | /* A sequence of statements in the program */ |
5f211341 | 225 | stmtseq : /* NULL */ |
a9f5ab8d | 226 | { $$ = NULL; } |
5f211341 | 227 | | stmtseq fullstmt |
2fcb4757 | 228 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 229 | PL_pad_reset_pending = TRUE; |
503de470 DM |
230 | if ($1 && $2) |
231 | PL_hints |= HINT_BLOCK_SCOPE; | |
232 | } | |
8d063cd8 LW |
233 | ; |
234 | ||
705fe0e5 FC |
235 | /* A sequence of format lines */ |
236 | formstmtseq: /* NULL */ | |
a9f5ab8d | 237 | { $$ = NULL; } |
705fe0e5 FC |
238 | | formstmtseq formline |
239 | { $$ = op_append_list(OP_LINESEQ, $1, $2); | |
240 | PL_pad_reset_pending = TRUE; | |
241 | if ($1 && $2) | |
242 | PL_hints |= HINT_BLOCK_SCOPE; | |
243 | } | |
244 | ; | |
245 | ||
8e720305 Z |
246 | /* A statement in the program, including optional labels */ |
247 | fullstmt: barestmt | |
eae48c89 | 248 | { |
b5bbe64a | 249 | $$ = $1 ? newSTATEOP(0, NULL, $1) : NULL; |
eae48c89 | 250 | } |
8e720305 Z |
251 | | labfullstmt |
252 | { $$ = $1; } | |
253 | ; | |
254 | ||
255 | labfullstmt: LABEL barestmt | |
256 | { | |
01719201 DM |
257 | SV *label = cSVOPx_sv($1); |
258 | $$ = newSTATEOP(SvFLAGS(label) & SVf_UTF8, | |
259 | savepv(SvPVX_const(label)), $2); | |
260 | op_free($1); | |
8e720305 Z |
261 | } |
262 | | LABEL labfullstmt | |
263 | { | |
01719201 DM |
264 | SV *label = cSVOPx_sv($1); |
265 | $$ = newSTATEOP(SvFLAGS(label) & SVf_UTF8, | |
266 | savepv(SvPVX_const(label)), $2); | |
267 | op_free($1); | |
8e720305 | 268 | } |
eae48c89 Z |
269 | ; |
270 | ||
271 | /* A bare statement, lacking label and other aspects of state op */ | |
272 | barestmt: PLUGSTMT | |
0d863452 | 273 | { $$ = $1; } |
7c70caa5 | 274 | | FORMAT startformsub formname formblock |
f05e27e5 | 275 | { |
eae48c89 | 276 | CV *fmtcv = PL_compcv; |
eae48c89 | 277 | newFORM($2, $3, $4); |
a9f5ab8d | 278 | $$ = NULL; |
4a273b91 | 279 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
74a9453a | 280 | pad_add_weakref(fmtcv); |
f05e27e5 | 281 | } |
8b9fb2f9 | 282 | parser->parsed_sub = 1; |
eae48c89 | 283 | } |
50278755 | 284 | | SUB subname startsub |
75230cc1 DM |
285 | /* sub declaration or definition not within scope |
286 | of 'use feature "signatures"'*/ | |
50278755 | 287 | { |
50333c97 | 288 | init_named_cv(PL_compcv, $2); |
624fa8bd FC |
289 | parser->in_my = 0; |
290 | parser->in_my_stash = NULL; | |
764212cf | 291 | } |
75230cc1 | 292 | proto subattrlist optsubbody |
eae48c89 Z |
293 | { |
294 | SvREFCNT_inc_simple_void(PL_compcv); | |
50278755 FC |
295 | $2->op_type == OP_CONST |
296 | ? newATTRSUB($3, $2, $5, $6, $7) | |
297 | : newMYSUB($3, $2, $5, $6, $7) | |
50278755 | 298 | ; |
a9f5ab8d | 299 | $$ = NULL; |
764212cf | 300 | intro_my(); |
34b54951 | 301 | parser->parsed_sub = 1; |
f05e27e5 | 302 | } |
436ddf68 | 303 | | SIGSUB subname startsub |
75230cc1 DM |
304 | /* sub declaration or definition under 'use feature |
305 | * "signatures"'. (Note that a signature isn't | |
306 | * allowed in a declaration) | |
307 | */ | |
436ddf68 DM |
308 | { |
309 | init_named_cv(PL_compcv, $2); | |
310 | parser->in_my = 0; | |
311 | parser->in_my_stash = NULL; | |
312 | } | |
75230cc1 | 313 | subattrlist optsigsubbody |
436ddf68 DM |
314 | { |
315 | SvREFCNT_inc_simple_void(PL_compcv); | |
316 | $2->op_type == OP_CONST | |
75230cc1 DM |
317 | ? newATTRSUB($3, $2, NULL, $5, $6) |
318 | : newMYSUB( $3, $2, NULL, $5, $6) | |
436ddf68 DM |
319 | ; |
320 | $$ = NULL; | |
321 | intro_my(); | |
322 | parser->parsed_sub = 1; | |
323 | } | |
185c2e96 | 324 | | PACKAGE BAREWORD BAREWORD ';' |
5f211341 | 325 | { |
eae48c89 Z |
326 | package($3); |
327 | if ($2) | |
328 | package_version($2); | |
a9f5ab8d | 329 | $$ = NULL; |
eae48c89 Z |
330 | } |
331 | | USE startsub | |
332 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
185c2e96 | 333 | BAREWORD BAREWORD optlistexpr ';' |
eae48c89 Z |
334 | { |
335 | SvREFCNT_inc_simple_void(PL_compcv); | |
b5bbe64a | 336 | utilize($1, $2, $4, $5, $6); |
34b54951 | 337 | parser->parsed_sub = 1; |
a9f5ab8d | 338 | $$ = NULL; |
eae48c89 | 339 | } |
417a992d | 340 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 341 | { |
3ad73efd Z |
342 | $$ = block_end($3, |
343 | newCONDOP(0, $4, op_scope($6), $7)); | |
624fa8bd | 344 | parser->copline = (line_t)$1; |
eae48c89 | 345 | } |
08b3e84f | 346 | | UNLESS '(' remember mexpr ')' mblock else |
eae48c89 | 347 | { |
3ad73efd | 348 | $$ = block_end($3, |
08b3e84f | 349 | newCONDOP(0, $4, $7, op_scope($6))); |
624fa8bd | 350 | parser->copline = (line_t)$1; |
eae48c89 | 351 | } |
b5a64814 | 352 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 353 | { |
5d051ee0 | 354 | $$ = block_end($3, newGIVENOP($4, op_scope($6), 0)); |
624fa8bd | 355 | parser->copline = (line_t)$1; |
eae48c89 | 356 | } |
7896dde7 Z |
357 | | WHEN '(' remember mexpr ')' mblock |
358 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } | |
359 | | DEFAULT block | |
360 | { $$ = newWHENOP(0, op_scope($2)); } | |
417a992d | 361 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
362 | { |
363 | $$ = block_end($3, | |
a9f5ab8d | 364 | newWHILEOP(0, 1, NULL, |
94bf0465 | 365 | $4, $7, $8, $6)); |
624fa8bd | 366 | parser->copline = (line_t)$1; |
eae48c89 | 367 | } |
417a992d | 368 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
369 | { |
370 | $$ = block_end($3, | |
a9f5ab8d | 371 | newWHILEOP(0, 1, NULL, |
94bf0465 | 372 | $4, $7, $8, $6)); |
624fa8bd | 373 | parser->copline = (line_t)$1; |
eae48c89 | 374 | } |
2d0e3c96 FC |
375 | | FOR '(' remember mnexpr ';' |
376 | { parser->expect = XTERM; } | |
377 | texpr ';' | |
378 | { parser->expect = XTERM; } | |
379 | mintro mnexpr ')' | |
eae48c89 Z |
380 | mblock |
381 | { | |
b5bbe64a | 382 | OP *initop = $4; |
a9f5ab8d | 383 | OP *forop = newWHILEOP(0, 1, NULL, |
2d0e3c96 | 384 | scalar($7), $13, $11, $10); |
eae48c89 Z |
385 | if (initop) { |
386 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
387 | op_append_elem(OP_LINESEQ, | |
388 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
389 | forop)); | |
5f211341 | 390 | } |
0f602692 | 391 | PL_hints |= HINT_BLOCK_SCOPE; |
eae48c89 | 392 | $$ = block_end($3, forop); |
624fa8bd | 393 | parser->copline = (line_t)$1; |
eae48c89 | 394 | } |
417a992d | 395 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 396 | { |
94bf0465 | 397 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
624fa8bd | 398 | parser->copline = (line_t)$1; |
eae48c89 | 399 | } |
417a992d | 400 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 401 | { |
94bf0465 | 402 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 403 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
624fa8bd | 404 | parser->copline = (line_t)$1; |
eae48c89 | 405 | } |
e118fea3 FC |
406 | | FOR my_refgen remember my_var |
407 | { parser->in_my = 0; $<opval>$ = my($4); } | |
d39c26a6 FC |
408 | '(' mexpr ')' mblock cont |
409 | { | |
410 | $$ = block_end( | |
e118fea3 | 411 | $3, |
d39c26a6 FC |
412 | newFOROP(0, |
413 | op_lvalue( | |
414 | newUNOP(OP_REFGEN, 0, | |
e118fea3 | 415 | $<opval>5), |
d39c26a6 | 416 | OP_ENTERLOOP), |
e118fea3 | 417 | $7, $9, $10) |
d39c26a6 FC |
418 | ); |
419 | parser->copline = (line_t)$1; | |
420 | } | |
421 | | FOR REFGEN refgen_topic '(' remember mexpr ')' mblock cont | |
422 | { | |
423 | $$ = block_end($5, newFOROP( | |
424 | 0, op_lvalue(newUNOP(OP_REFGEN, 0, | |
96801525 | 425 | $3), |
d39c26a6 FC |
426 | OP_ENTERLOOP), $6, $8, $9)); |
427 | parser->copline = (line_t)$1; | |
428 | } | |
417a992d | 429 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
430 | { |
431 | $$ = block_end($3, | |
a9f5ab8d | 432 | newFOROP(0, NULL, $4, $6, $7)); |
624fa8bd | 433 | parser->copline = (line_t)$1; |
eae48c89 Z |
434 | } |
435 | | block cont | |
436 | { | |
437 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
438 | $$ = newWHILEOP(0, 1, NULL, |
439 | NULL, $1, $2, 0); | |
eae48c89 | 440 | } |
185c2e96 | 441 | | PACKAGE BAREWORD BAREWORD '{' remember |
eae48c89 | 442 | { |
eae48c89 | 443 | package($3); |
eae48c89 | 444 | if ($2) { |
eae48c89 | 445 | package_version($2); |
eae48c89 Z |
446 | } |
447 | } | |
448 | stmtseq '}' | |
449 | { | |
450 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
451 | $$ = newWHILEOP(0, 1, NULL, |
452 | NULL, block_end($5, $7), NULL, 0); | |
624fa8bd FC |
453 | if (parser->copline > (line_t)$4) |
454 | parser->copline = (line_t)$4; | |
eae48c89 Z |
455 | } |
456 | | sideff ';' | |
457 | { | |
eae48c89 | 458 | $$ = $1; |
eae48c89 | 459 | } |
29d69c3c Z |
460 | | YADAYADA ';' |
461 | { | |
462 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
463 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
464 | } | |
eae48c89 Z |
465 | | ';' |
466 | { | |
a9f5ab8d | 467 | $$ = NULL; |
624fa8bd | 468 | parser->copline = NOLINE; |
5f211341 | 469 | } |
8d063cd8 LW |
470 | ; |
471 | ||
705fe0e5 FC |
472 | /* Format line */ |
473 | formline: THING formarg | |
474 | { OP *list; | |
475 | if ($2) { | |
476 | OP *term = $2; | |
705fe0e5 FC |
477 | list = op_append_elem(OP_LIST, $1, term); |
478 | } | |
479 | else { | |
705fe0e5 | 480 | list = $1; |
705fe0e5 | 481 | } |
624fa8bd FC |
482 | if (parser->copline == NOLINE) |
483 | parser->copline = CopLINE(PL_curcop)-1; | |
484 | else parser->copline--; | |
705fe0e5 | 485 | $$ = newSTATEOP(0, NULL, |
03d05f6e | 486 | op_convert_list(OP_FORMLINE, 0, list)); |
705fe0e5 FC |
487 | } |
488 | ; | |
489 | ||
490 | formarg : /* NULL */ | |
491 | { $$ = NULL; } | |
492 | | FORMLBRACK stmtseq FORMRBRACK | |
493 | { $$ = op_unscope($2); } | |
494 | ; | |
495 | ||
891be019 | 496 | /* An expression which may have a side-effect */ |
a687059c | 497 | sideff : error |
a9f5ab8d | 498 | { $$ = NULL; } |
a687059c | 499 | | expr |
79072805 | 500 | { $$ = $1; } |
a687059c | 501 | | expr IF expr |
b5bbe64a | 502 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 503 | | expr UNLESS expr |
b5bbe64a | 504 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 505 | | expr WHILE expr |
b5bbe64a | 506 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 507 | | expr UNTIL iexpr |
b5bbe64a | 508 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); } |
ecca16b0 | 509 | | expr FOR expr |
a9f5ab8d | 510 | { $$ = newFOROP(0, NULL, $3, $1, NULL); |
624fa8bd | 511 | parser->copline = (line_t)$2; } |
7896dde7 Z |
512 | | expr WHEN expr |
513 | { $$ = newWHENOP($3, op_scope($1)); } | |
79072805 LW |
514 | ; |
515 | ||
891be019 | 516 | /* else and elsif blocks */ |
79072805 | 517 | else : /* NULL */ |
a9f5ab8d | 518 | { $$ = NULL; } |
55497cff | 519 | | ELSE mblock |
3ad73efd Z |
520 | { |
521 | ($2)->op_flags |= OPf_PARENS; | |
522 | $$ = op_scope($2); | |
f05e27e5 | 523 | } |
417a992d | 524 | | ELSIF '(' mexpr ')' mblock else |
624fa8bd | 525 | { parser->copline = (line_t)$1; |
3ad73efd Z |
526 | $$ = newCONDOP(0, |
527 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
528 | op_scope($5), $6); | |
529 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 | 530 | } |
79072805 LW |
531 | ; |
532 | ||
891be019 | 533 | /* Continue blocks */ |
79072805 | 534 | cont : /* NULL */ |
a9f5ab8d | 535 | { $$ = NULL; } |
79072805 | 536 | | CONTINUE block |
b5bbe64a | 537 | { $$ = op_scope($2); } |
79072805 LW |
538 | ; |
539 | ||
a034e688 DM |
540 | /* determine whether there are any new my declarations */ |
541 | mintro : /* NULL */ | |
542 | { $$ = (PL_min_intro_pending && | |
543 | PL_max_intro_pending >= PL_min_intro_pending); | |
544 | intro_my(); } | |
545 | ||
891be019 | 546 | /* Normal expression */ |
8d063cd8 | 547 | nexpr : /* NULL */ |
a9f5ab8d | 548 | { $$ = NULL; } |
8d063cd8 LW |
549 | | sideff |
550 | ; | |
551 | ||
891be019 | 552 | /* Boolean expression */ |
8d063cd8 | 553 | texpr : /* NULL means true */ |
f05e27e5 DM |
554 | { YYSTYPE tmplval; |
555 | (void)scan_num("1", &tmplval); | |
556 | $$ = tmplval.opval; } | |
8d063cd8 LW |
557 | | expr |
558 | ; | |
559 | ||
891be019 | 560 | /* Inverted boolean expression */ |
55497cff | 561 | iexpr : expr |
562 | { $$ = invert(scalar($1)); } | |
563 | ; | |
564 | ||
891be019 | 565 | /* Expression with its own lexical scope */ |
55497cff | 566 | mexpr : expr |
bbce6d69 | 567 | { $$ = $1; intro_my(); } |
568 | ; | |
569 | ||
570 | mnexpr : nexpr | |
571 | { $$ = $1; intro_my(); } | |
55497cff | 572 | ; |
573 | ||
185c2e96 | 574 | formname: BAREWORD { $$ = $1; } |
a9f5ab8d | 575 | | /* NULL */ { $$ = NULL; } |
8d063cd8 LW |
576 | ; |
577 | ||
fa83b5b6 | 578 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
579 | { $$ = start_subparse(FALSE, 0); |
580 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 581 | |
28757baa | 582 | ; |
583 | ||
584 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
585 | { $$ = start_subparse(FALSE, CVf_ANON); |
586 | SAVEFREESV(PL_compcv); } | |
28757baa | 587 | ; |
588 | ||
44a8e56a | 589 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
590 | { $$ = start_subparse(TRUE, 0); |
591 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 592 | ; |
593 | ||
891be019 | 594 | /* Name of a subroutine - must be a bareword, could be special */ |
185c2e96 | 595 | subname : BAREWORD |
4210d3f1 | 596 | | PRIVATEREF |
a0d0e21e LW |
597 | ; |
598 | ||
891be019 | 599 | /* Subroutine prototype */ |
4633a7c4 | 600 | proto : /* NULL */ |
a9f5ab8d | 601 | { $$ = NULL; } |
4633a7c4 LW |
602 | | THING |
603 | ; | |
28757baa | 604 | |
891be019 | 605 | /* Optional list of subroutine attributes */ |
09bef843 | 606 | subattrlist: /* NULL */ |
a9f5ab8d | 607 | { $$ = NULL; } |
09bef843 | 608 | | COLONATTR THING |
b5bbe64a | 609 | { $$ = $2; } |
09bef843 | 610 | | COLONATTR |
a9f5ab8d | 611 | { $$ = NULL; } |
09bef843 SB |
612 | ; |
613 | ||
891be019 | 614 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 615 | myattrlist: COLONATTR THING |
b5bbe64a | 616 | { $$ = $2; } |
09bef843 | 617 | | COLONATTR |
a9f5ab8d | 618 | { $$ = NULL; } |
09bef843 SB |
619 | ; |
620 | ||
abcf453d | 621 | |
d3d9da4a DM |
622 | |
623 | /* -------------------------------------- | |
624 | * subroutine signature parsing | |
625 | */ | |
626 | ||
627 | /* the '' or 'foo' part of a '$' or '@foo' etc signature variable */ | |
49fb8620 | 628 | sigvarname: /* NULL */ |
a9f5ab8d | 629 | { parser->in_my = 0; $$ = NULL; } |
d3d9da4a | 630 | | PRIVATEREF |
49fb8620 | 631 | { parser->in_my = 0; $$ = $1; } |
d3d9da4a DM |
632 | ; |
633 | ||
634 | sigslurpsigil: | |
635 | '@' | |
636 | { $$ = '@'; } | |
637 | | '%' | |
638 | { $$ = '%'; } | |
639 | ||
640 | /* @, %, @foo, %foo */ | |
641 | sigslurpelem: sigslurpsigil sigvarname sigdefault/* def only to catch errors */ | |
642 | { | |
4fa06845 DM |
643 | I32 sigil = $1; |
644 | OP *var = $2; | |
d3d9da4a | 645 | OP *defexpr = $3; |
d3d9da4a | 646 | |
036bbc13 | 647 | if (parser->sig_slurpy) |
d3d9da4a | 648 | yyerror("Multiple slurpy parameters not allowed"); |
036bbc13 | 649 | parser->sig_slurpy = (char)sigil; |
d3d9da4a DM |
650 | |
651 | if (defexpr) | |
bb6b75cd | 652 | yyerror("A slurpy parameter may not have " |
d3d9da4a DM |
653 | "a default value"); |
654 | ||
a9f5ab8d | 655 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
656 | } |
657 | ; | |
658 | ||
659 | /* default part of sub signature scalar element: i.e. '= default_expr' */ | |
660 | sigdefault: /* NULL */ | |
a9f5ab8d | 661 | { $$ = NULL; } |
d3d9da4a DM |
662 | | ASSIGNOP |
663 | { $$ = newOP(OP_NULL, 0); } | |
664 | | ASSIGNOP term | |
665 | { $$ = $2; } | |
666 | ||
667 | ||
668 | /* subroutine signature scalar element: e.g. '$x', '$=', '$x = $default' */ | |
669 | sigscalarelem: | |
670 | '$' sigvarname sigdefault | |
671 | { | |
672 | OP *var = $2; | |
673 | OP *defexpr = $3; | |
d3d9da4a | 674 | |
036bbc13 | 675 | if (parser->sig_slurpy) |
d3d9da4a DM |
676 | yyerror("Slurpy parameter not last"); |
677 | ||
036bbc13 | 678 | parser->sig_elems++; |
d3d9da4a | 679 | |
d3d9da4a | 680 | if (defexpr) { |
036bbc13 | 681 | parser->sig_optelems++; |
4fa06845 DM |
682 | |
683 | if ( defexpr->op_type == OP_NULL | |
d3d9da4a DM |
684 | && !(defexpr->op_flags & OPf_KIDS)) |
685 | { | |
4fa06845 DM |
686 | /* handle '$=' special case */ |
687 | if (var) | |
688 | yyerror("Optional parameter " | |
689 | "lacks default expression"); | |
d3d9da4a DM |
690 | op_free(defexpr); |
691 | } | |
4fa06845 DM |
692 | else { |
693 | /* a normal '=default' expression */ | |
694 | OP *defop = (OP*)alloc_LOGOP(OP_ARGDEFELEM, | |
695 | defexpr, | |
696 | LINKLIST(defexpr)); | |
697 | /* re-purpose op_targ to hold @_ index */ | |
6daeaaa3 | 698 | defop->op_targ = |
036bbc13 | 699 | (PADOFFSET)(parser->sig_elems - 1); |
4fa06845 DM |
700 | |
701 | if (var) { | |
702 | var->op_flags |= OPf_STACKED; | |
703 | (void)op_sibling_splice(var, | |
704 | NULL, 0, defop); | |
705 | scalar(defop); | |
706 | } | |
707 | else | |
708 | var = newUNOP(OP_NULL, 0, defop); | |
709 | ||
710 | LINKLIST(var); | |
711 | /* NB: normally the first child of a | |
712 | * logop is executed before the logop, | |
713 | * and it pushes a boolean result | |
714 | * ready for the logop. For ARGDEFELEM, | |
715 | * the op itself does the boolean | |
716 | * calculation, so set the first op to | |
717 | * it instead. | |
718 | */ | |
719 | var->op_next = defop; | |
720 | defexpr->op_next = var; | |
d3d9da4a DM |
721 | } |
722 | } | |
723 | else { | |
036bbc13 | 724 | if (parser->sig_optelems) |
d3d9da4a DM |
725 | yyerror("Mandatory parameter " |
726 | "follows optional parameter"); | |
d3d9da4a DM |
727 | } |
728 | ||
a9f5ab8d | 729 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
730 | } |
731 | ; | |
732 | ||
733 | ||
734 | /* subroutine signature element: e.g. '$x = $default' or '%h' */ | |
735 | sigelem: sigscalarelem | |
49fb8620 | 736 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a | 737 | | sigslurpelem |
49fb8620 | 738 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a DM |
739 | ; |
740 | ||
741 | /* list of subroutine signature elements */ | |
742 | siglist: | |
743 | siglist ',' | |
744 | { $$ = $1; } | |
745 | | siglist ',' sigelem | |
30d9c59b | 746 | { |
d3d9da4a | 747 | $$ = op_append_list(OP_LINESEQ, $1, $3); |
30d9c59b | 748 | } |
d3d9da4a DM |
749 | | sigelem %prec PREC_LOW |
750 | { $$ = $1; } | |
30d9c59b Z |
751 | ; |
752 | ||
d3d9da4a DM |
753 | /* () or (....) */ |
754 | siglistornull: /* NULL */ | |
a9f5ab8d | 755 | { $$ = NULL; } |
d3d9da4a DM |
756 | | siglist |
757 | { $$ = $1; } | |
758 | ||
75230cc1 DM |
759 | /* optional subroutine signature */ |
760 | optsubsignature: /* NULL */ | |
761 | { $$ = NULL; } | |
762 | | subsignature | |
763 | { $$ = $1; } | |
764 | ||
d3d9da4a | 765 | /* Subroutine signature */ |
75230cc1 | 766 | subsignature: '(' |
d3d9da4a DM |
767 | { |
768 | ENTER; | |
036bbc13 FC |
769 | SAVEIV(parser->sig_elems); |
770 | SAVEIV(parser->sig_optelems); | |
771 | SAVEI8(parser->sig_slurpy); | |
772 | parser->sig_elems = 0; | |
773 | parser->sig_optelems = 0; | |
774 | parser->sig_slurpy = 0; | |
49fb8620 | 775 | parser->in_my = KEY_sigvar; |
d3d9da4a DM |
776 | } |
777 | siglistornull | |
778 | ')' | |
779 | { | |
4fa06845 DM |
780 | OP *sigops = $3; |
781 | UNOP_AUX_item *aux; | |
782 | OP *check; | |
d3d9da4a | 783 | |
894f226e DM |
784 | if (!FEATURE_SIGNATURES_IS_ENABLED) |
785 | Perl_croak(aTHX_ "Experimental " | |
786 | "subroutine signatures not enabled"); | |
d3d9da4a DM |
787 | |
788 | /* We shouldn't get here otherwise */ | |
789 | Perl_ck_warner_d(aTHX_ | |
790 | packWARN(WARN_EXPERIMENTAL__SIGNATURES), | |
791 | "The signatures feature is experimental"); | |
792 | ||
4fa06845 DM |
793 | aux = (UNOP_AUX_item*)PerlMemShared_malloc( |
794 | sizeof(UNOP_AUX_item) * 3); | |
036bbc13 FC |
795 | aux[0].iv = parser->sig_elems; |
796 | aux[1].iv = parser->sig_optelems; | |
797 | aux[2].iv = parser->sig_slurpy; | |
4fa06845 DM |
798 | check = newUNOP_AUX(OP_ARGCHECK, 0, NULL, aux); |
799 | sigops = op_prepend_elem(OP_LINESEQ, check, sigops); | |
800 | sigops = op_prepend_elem(OP_LINESEQ, | |
801 | newSTATEOP(0, NULL, NULL), | |
802 | sigops); | |
803 | /* a nextstate at the end handles context | |
804 | * correctly for an empty sub body */ | |
805 | $$ = op_append_elem(OP_LINESEQ, | |
806 | sigops, | |
807 | newSTATEOP(0, NULL, NULL)); | |
d3d9da4a | 808 | |
49fb8620 | 809 | parser->in_my = 0; |
a8c56356 DM |
810 | /* tell the toker that attrributes can follow |
811 | * this sig, but only so that the toker | |
812 | * can skip through any (illegal) trailing | |
813 | * attribute text then give a useful error | |
814 | * message about "attributes before sig", | |
815 | * rather than falling over ina mess at | |
816 | * unrecognised syntax. | |
817 | */ | |
818 | parser->expect = XATTRBLOCK; | |
819 | parser->sig_seen = TRUE; | |
d3d9da4a DM |
820 | LEAVE; |
821 | } | |
822 | ; | |
823 | ||
75230cc1 DM |
824 | /* Optional subroutine body (for named subroutine declaration) */ |
825 | optsubbody: subbody { $$ = $1; } | |
826 | | ';' { $$ = NULL; } | |
827 | ; | |
828 | ||
829 | ||
830 | /* Subroutine body (without signature) */ | |
831 | subbody: remember '{' stmtseq '}' | |
832 | { | |
833 | if (parser->copline > (line_t)$2) | |
834 | parser->copline = (line_t)$2; | |
835 | $$ = block_end($1, $3); | |
836 | } | |
837 | ; | |
838 | ||
839 | ||
840 | /* optional [ Subroutine body with optional signature ] (for named | |
841 | * subroutine declaration) */ | |
842 | optsigsubbody: sigsubbody { $$ = $1; } | |
843 | | ';' { $$ = NULL; } | |
d3d9da4a | 844 | |
75230cc1 DM |
845 | /* Subroutine body with optional signature */ |
846 | sigsubbody: remember optsubsignature '{' stmtseq '}' | |
894f226e DM |
847 | { |
848 | if (parser->copline > (line_t)$3) | |
849 | parser->copline = (line_t)$3; | |
850 | $$ = block_end($1, | |
851 | op_append_list(OP_LINESEQ, $2, $4)); | |
852 | } | |
853 | ; | |
854 | ||
d3d9da4a | 855 | |
891be019 | 856 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 857 | expr : expr ANDOP expr |
b5bbe64a | 858 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 859 | | expr OROP expr |
b5bbe64a | 860 | { $$ = newLOGOP($2, 0, $1, $3); } |
c963b151 | 861 | | expr DOROP expr |
b5bbe64a | 862 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
09b1cffe | 863 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
864 | ; |
865 | ||
891be019 | 866 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 867 | listexpr: listexpr ',' |
b5bbe64a | 868 | { $$ = $1; } |
09b1cffe | 869 | | listexpr ',' term |
abcf453d | 870 | { |
29522234 | 871 | OP* term = $3; |
2fcb4757 | 872 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 873 | } |
fad39ff1 | 874 | | term %prec PREC_LOW |
8d063cd8 LW |
875 | ; |
876 | ||
891be019 | 877 | /* List operators */ |
09b1cffe | 878 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
03d05f6e | 879 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 880 | op_prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); |
f05e27e5 | 881 | } |
891be019 | 882 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
03d05f6e | 883 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 884 | op_prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); |
f05e27e5 | 885 | } |
417a992d | 886 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
03d05f6e | 887 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
888 | op_append_elem(OP_LIST, |
889 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
b46e009d | 890 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 891 | } |
891be019 | 892 | | term ARROW method /* $foo->bar */ |
03d05f6e | 893 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 894 | op_append_elem(OP_LIST, scalar($1), |
b46e009d | 895 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 896 | } |
09b1cffe | 897 | | METHOD indirob optlistexpr /* new Class @args */ |
03d05f6e | 898 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
899 | op_append_elem(OP_LIST, |
900 | op_prepend_elem(OP_LIST, $2, $3), | |
b46e009d | 901 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 902 | } |
09b1cffe | 903 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
03d05f6e | 904 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
905 | op_append_elem(OP_LIST, |
906 | op_prepend_elem(OP_LIST, $2, $4), | |
b46e009d | 907 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 908 | } |
09b1cffe | 909 | | LSTOP optlistexpr /* print @args */ |
03d05f6e | 910 | { $$ = op_convert_list($1, 0, $2); } |
09b1cffe | 911 | | FUNC '(' optexpr ')' /* print (@args) */ |
03d05f6e | 912 | { $$ = op_convert_list($1, 0, $3); } |
69afcc21 TC |
913 | | FUNC SUBLEXSTART optexpr SUBLEXEND /* uc($arg) from "\U..." */ |
914 | { $$ = op_convert_list($1, 0, $3); } | |
718a7425 | 915 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 916 | { SvREFCNT_inc_simple_void(PL_compcv); |
a9f5ab8d | 917 | $<opval>$ = newANONATTRSUB($2, 0, NULL, $3); } |
09b1cffe | 918 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 919 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
920 | op_append_elem(OP_LIST, |
921 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 922 | } |
a687059c LW |
923 | ; |
924 | ||
891be019 | 925 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
926 | method : METHOD |
927 | | scalar | |
928 | ; | |
929 | ||
891be019 | 930 | /* Some kind of subscripted expression */ |
89f35911 | 931 | subscripted: gelem '{' expr ';' '}' /* *main::{something} */ |
891be019 SC |
932 | /* In this and all the hash accessors, ';' is |
933 | * provided by the tokeniser */ | |
5c86b6df | 934 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
891be019 | 935 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 | 936 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
f05e27e5 | 937 | } |
891be019 | 938 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
939 | { $$ = newBINOP(OP_AELEM, 0, |
940 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 941 | scalar($4)); |
f05e27e5 | 942 | } |
891be019 | 943 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
944 | { $$ = newBINOP(OP_AELEM, 0, |
945 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 946 | scalar($3)); |
f05e27e5 | 947 | } |
5a63ceef | 948 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 949 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
f05e27e5 | 950 | } |
891be019 | 951 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
952 | { $$ = newBINOP(OP_HELEM, 0, |
953 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 954 | jmaybe($4)); } |
891be019 | 955 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
956 | { $$ = newBINOP(OP_HELEM, 0, |
957 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 958 | jmaybe($3)); } |
891be019 | 959 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 960 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
097ff42c Z |
961 | newCVREF(0, scalar($1))); |
962 | if (parser->expect == XBLOCK) | |
963 | parser->expect = XOPERATOR; | |
964 | } | |
891be019 | 965 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 966 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 967 | op_append_elem(OP_LIST, $4, |
097ff42c Z |
968 | newCVREF(0, scalar($1)))); |
969 | if (parser->expect == XBLOCK) | |
970 | parser->expect = XOPERATOR; | |
971 | } | |
fad39ff1 | 972 | |
417a992d | 973 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 974 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 975 | op_append_elem(OP_LIST, $3, |
097ff42c Z |
976 | newCVREF(0, scalar($1)))); |
977 | if (parser->expect == XBLOCK) | |
978 | parser->expect = XOPERATOR; | |
979 | } | |
417a992d | 980 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 981 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
097ff42c Z |
982 | newCVREF(0, scalar($1))); |
983 | if (parser->expect == XBLOCK) | |
984 | parser->expect = XOPERATOR; | |
985 | } | |
9a9798c2 | 986 | | '(' expr ')' '[' expr ']' /* list slice */ |
b5bbe64a | 987 | { $$ = newSLICEOP(0, $5, $2); } |
ea25a9b2 | 988 | | QWLIST '[' expr ']' /* list literal slice */ |
b5bbe64a | 989 | { $$ = newSLICEOP(0, $3, $1); } |
9a9798c2 | 990 | | '(' ')' '[' expr ']' /* empty list slice! */ |
a9f5ab8d | 991 | { $$ = newSLICEOP(0, $4, NULL); } |
891be019 | 992 | ; |
fad39ff1 | 993 | |
891be019 | 994 | /* Binary operators between terms */ |
3f5e9543 | 995 | termbinop: term ASSIGNOP term /* $x = $y, $x += $y */ |
b5bbe64a | 996 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } |
891be019 | 997 | | term POWOP term /* $x ** $y */ |
b5bbe64a | 998 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 999 | | term MULOP term /* $x * $y, $x x $y */ |
b5bbe64a | 1000 | { if ($2 != OP_REPEAT) |
79072805 | 1001 | scalar($1); |
b5bbe64a | 1002 | $$ = newBINOP($2, 0, $1, scalar($3)); |
f05e27e5 | 1003 | } |
891be019 | 1004 | | term ADDOP term /* $x + $y */ |
b5bbe64a | 1005 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1006 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
b5bbe64a | 1007 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1008 | | term RELOP term /* $x > $y, etc. */ |
b5bbe64a | 1009 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1010 | | term EQOP term /* $x == $y, $x eq $y */ |
b5bbe64a | 1011 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1012 | | term BITANDOP term /* $x & $y */ |
b5bbe64a | 1013 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1014 | | term BITOROP term /* $x | $y */ |
b5bbe64a | 1015 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1016 | | term DOTDOT term /* $x..$y, $x...$y */ |
b5bbe64a | 1017 | { $$ = newRANGE($2, scalar($1), scalar($3)); } |
891be019 | 1018 | | term ANDAND term /* $x && $y */ |
b5bbe64a | 1019 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
891be019 | 1020 | | term OROR term /* $x || $y */ |
b5bbe64a | 1021 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
c963b151 | 1022 | | term DORDOR term /* $x // $y */ |
b5bbe64a | 1023 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
891be019 | 1024 | | term MATCHOP term /* $x =~ /$y/ */ |
b5bbe64a | 1025 | { $$ = bind_match($2, $1, $3); } |
891be019 | 1026 | ; |
8d063cd8 | 1027 | |
891be019 SC |
1028 | /* Unary operators and terms */ |
1029 | termunop : '-' term %prec UMINUS /* -$x */ | |
b5bbe64a | 1030 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
891be019 | 1031 | | '+' term %prec UMINUS /* +$x */ |
b5bbe64a JH |
1032 | { $$ = $2; } |
1033 | ||
891be019 | 1034 | | '!' term /* !$x */ |
b5bbe64a | 1035 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1036 | | '~' term /* ~$x */ |
8823cb89 | 1037 | { $$ = newUNOP($1, 0, scalar($2)); } |
891be019 | 1038 | | term POSTINC /* $x++ */ |
79072805 | 1039 | { $$ = newUNOP(OP_POSTINC, 0, |
b5bbe64a | 1040 | op_lvalue(scalar($1), OP_POSTINC)); } |
891be019 | 1041 | | term POSTDEC /* $x-- */ |
79072805 | 1042 | { $$ = newUNOP(OP_POSTDEC, 0, |
b5bbe64a | 1043 | op_lvalue(scalar($1), OP_POSTDEC));} |
cc624add | 1044 | | term POSTJOIN /* implicit join after interpolated ->@ */ |
03d05f6e | 1045 | { $$ = op_convert_list(OP_JOIN, 0, |
cc624add FC |
1046 | op_append_elem( |
1047 | OP_LIST, | |
1048 | newSVREF(scalar( | |
1049 | newSVOP(OP_CONST,0, | |
1050 | newSVpvs("\"")) | |
1051 | )), | |
1052 | $1 | |
1053 | )); | |
cc624add | 1054 | } |
891be019 | 1055 | | PREINC term /* ++$x */ |
79072805 | 1056 | { $$ = newUNOP(OP_PREINC, 0, |
b5bbe64a | 1057 | op_lvalue(scalar($2), OP_PREINC)); } |
891be019 | 1058 | | PREDEC term /* --$x */ |
79072805 | 1059 | { $$ = newUNOP(OP_PREDEC, 0, |
b5bbe64a | 1060 | op_lvalue(scalar($2), OP_PREDEC)); } |
891be019 SC |
1061 | |
1062 | ; | |
1063 | ||
1064 | /* Constructors for anonymous data */ | |
1065 | anonymous: '[' expr ']' | |
b5bbe64a | 1066 | { $$ = newANONLIST($2); } |
891be019 | 1067 | | '[' ']' |
a9f5ab8d | 1068 | { $$ = newANONLIST(NULL);} |
891be019 | 1069 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
b5bbe64a | 1070 | { $$ = newANONHASH($2); } |
891be019 | 1071 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
a9f5ab8d | 1072 | { $$ = newANONHASH(NULL); } |
75230cc1 | 1073 | | ANONSUB startanonsub proto subattrlist subbody %prec '(' |
436ddf68 DM |
1074 | { SvREFCNT_inc_simple_void(PL_compcv); |
1075 | $$ = newANONATTRSUB($2, $3, $4, $5); } | |
75230cc1 | 1076 | | ANON_SIGSUB startanonsub subattrlist sigsubbody %prec '(' |
5a5094bd | 1077 | { SvREFCNT_inc_simple_void(PL_compcv); |
75230cc1 | 1078 | $$ = newANONATTRSUB($2, NULL, $3, $4); } |
891be019 SC |
1079 | ; |
1080 | ||
1081 | /* Things called with "do" */ | |
1082 | termdo : DO term %prec UNIOP /* do $filename */ | |
b5bbe64a | 1083 | { $$ = dofile($2, $1);} |
891be019 | 1084 | | DO block %prec '(' /* do { code */ |
b5bbe64a | 1085 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2));} |
891be019 SC |
1086 | ; |
1087 | ||
1088 | term : termbinop | |
1089 | | termunop | |
1090 | | anonymous | |
1091 | | termdo | |
e9bdcc27 | 1092 | | term '?' term ':' term |
b5bbe64a | 1093 | { $$ = newCONDOP(0, $1, $3, $5); } |
891be019 | 1094 | | REFGEN term /* \$x, \@y, \%z */ |
070d3cb6 | 1095 | { $$ = newUNOP(OP_REFGEN, 0, $2); } |
e118fea3 FC |
1096 | | MY REFGEN term |
1097 | { $$ = newUNOP(OP_REFGEN, 0, localize($3,1)); } | |
09bef843 SB |
1098 | | myattrterm %prec UNIOP |
1099 | { $$ = $1; } | |
1100 | | LOCAL term %prec UNIOP | |
28383d1a | 1101 | { $$ = localize($2,0); } |
a0d0e21e | 1102 | | '(' expr ')' |
b5bbe64a | 1103 | { $$ = sawparens($2); } |
ea25a9b2 | 1104 | | QWLIST |
b5bbe64a | 1105 | { $$ = $1; } |
8d063cd8 | 1106 | | '(' ')' |
b5bbe64a | 1107 | { $$ = sawparens(newNULLLIST()); } |
79072805 | 1108 | | scalar %prec '(' |
8d063cd8 | 1109 | { $$ = $1; } |
79072805 | 1110 | | star %prec '(' |
8d063cd8 | 1111 | { $$ = $1; } |
79072805 | 1112 | | hsh %prec '(' |
8d063cd8 | 1113 | { $$ = $1; } |
79072805 | 1114 | | ary %prec '(' |
8d063cd8 | 1115 | { $$ = $1; } |
891be019 | 1116 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1117 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1118 | | subscripted |
1119 | { $$ = $1; } | |
89f35911 | 1120 | | sliceme '[' expr ']' /* array slice */ |
2fcb4757 | 1121 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1122 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1123 | newLISTOP(OP_ASLICE, 0, |
1124 | list($3), | |
f05e27e5 | 1125 | ref($1, OP_ASLICE))); |
429a2555 FC |
1126 | if ($$ && $1) |
1127 | $$->op_private |= | |
1128 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1129 | } |
76eba8ab | 1130 | | kvslice '[' expr ']' /* array key/value slice */ |
6dd3e0f2 RZ |
1131 | { $$ = op_prepend_elem(OP_KVASLICE, |
1132 | newOP(OP_PUSHMARK, 0), | |
1133 | newLISTOP(OP_KVASLICE, 0, | |
1134 | list($3), | |
1135 | ref(oopsAV($1), OP_KVASLICE))); | |
95a31aad FC |
1136 | if ($$ && $1) |
1137 | $$->op_private |= | |
1138 | $1->op_private & OPpSLICEWARNING; | |
6dd3e0f2 | 1139 | } |
89f35911 | 1140 | | sliceme '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1141 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1142 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1143 | newLISTOP(OP_HSLICE, 0, |
1144 | list($3), | |
a0d0e21e | 1145 | ref(oopsHV($1), OP_HSLICE))); |
429a2555 FC |
1146 | if ($$ && $1) |
1147 | $$->op_private |= | |
1148 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1149 | } |
76eba8ab | 1150 | | kvslice '{' expr ';' '}' /* %hash{@keys} */ |
5cae3edb RZ |
1151 | { $$ = op_prepend_elem(OP_KVHSLICE, |
1152 | newOP(OP_PUSHMARK, 0), | |
1153 | newLISTOP(OP_KVHSLICE, 0, | |
1154 | list($3), | |
1155 | ref($1, OP_KVHSLICE))); | |
95a31aad FC |
1156 | if ($$ && $1) |
1157 | $$->op_private |= | |
1158 | $1->op_private & OPpSLICEWARNING; | |
5cae3edb | 1159 | } |
79072805 LW |
1160 | | THING %prec '(' |
1161 | { $$ = $1; } | |
891be019 | 1162 | | amper /* &foo; */ |
c07a80fd | 1163 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
fb602e32 | 1164 | | amper '(' ')' /* &foo() or foo() */ |
f05e27e5 | 1165 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
f05e27e5 | 1166 | } |
fb602e32 | 1167 | | amper '(' expr ')' /* &foo(@args) or foo(@args) */ |
f05e27e5 DM |
1168 | { |
1169 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1170 | op_append_elem(OP_LIST, $3, scalar($1))); |
f05e27e5 | 1171 | } |
fb602e32 | 1172 | | NOAMP subname optlistexpr /* foo @args (no parens) */ |
a0d0e21e | 1173 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1174 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 | 1175 | } |
89f35911 | 1176 | | term ARROW '$' '*' |
b5bbe64a | 1177 | { $$ = newSVREF($1); } |
89f35911 | 1178 | | term ARROW '@' '*' |
b5bbe64a | 1179 | { $$ = newAVREF($1); } |
89f35911 | 1180 | | term ARROW '%' '*' |
b5bbe64a | 1181 | { $$ = newHVREF($1); } |
89f35911 FC |
1182 | | term ARROW '&' '*' |
1183 | { $$ = newUNOP(OP_ENTERSUB, 0, | |
b5bbe64a | 1184 | scalar(newCVREF($3,$1))); } |
89f35911 | 1185 | | term ARROW '*' '*' %prec '(' |
b5bbe64a | 1186 | { $$ = newGVREF(0,$1); } |
891be019 | 1187 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
b5bbe64a JH |
1188 | { $$ = newOP($1, OPf_SPECIAL); |
1189 | PL_hints |= HINT_BLOCK_SCOPE; } | |
a0d0e21e | 1190 | | LOOPEX term |
b5bbe64a | 1191 | { $$ = newLOOPEX($1,$2); } |
09b1cffe | 1192 | | NOTOP listexpr /* not $foo */ |
b5bbe64a | 1193 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1194 | | UNIOP /* Unary op, $_ implied */ |
b5bbe64a | 1195 | { $$ = newOP($1, 0); } |
f05e27e5 | 1196 | | UNIOP block /* eval { foo }* */ |
b5bbe64a | 1197 | { $$ = newUNOP($1, 0, $2); } |
891be019 | 1198 | | UNIOP term /* Unary op */ |
b5bbe64a | 1199 | { $$ = newUNOP($1, 0, $2); } |
d2fdf8fd | 1200 | | REQUIRE /* require, $_ implied */ |
b5bbe64a | 1201 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); } |
d2fdf8fd | 1202 | | REQUIRE term /* require Foo */ |
b5bbe64a | 1203 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); } |
3cd0a11a RGS |
1204 | | UNIOPSUB |
1205 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1206 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1207 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1208 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1209 | | FUNC0 /* Nullary operator */ |
b5bbe64a | 1210 | { $$ = newOP($1, 0); } |
ae986130 | 1211 | | FUNC0 '(' ')' |
b5bbe64a | 1212 | { $$ = newOP($1, 0);} |
7eb971ee FC |
1213 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1214 | { $$ = $1; } | |
1215 | | FUNC0OP '(' ')' | |
b5bbe64a | 1216 | { $$ = $1; } |
891be019 | 1217 | | FUNC0SUB /* Sub treated as nullop */ |
b5bbe64a | 1218 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
891be019 | 1219 | | FUNC1 '(' ')' /* not () */ |
b5bbe64a JH |
1220 | { $$ = ($1 == OP_NOT) |
1221 | ? newUNOP($1, 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1222 | : newOP($1, OPf_SPECIAL); } | |
891be019 | 1223 | | FUNC1 '(' expr ')' /* not($foo) */ |
b5bbe64a | 1224 | { $$ = newUNOP($1, 0, $3); } |
d63c20f2 DM |
1225 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1226 | { | |
1227 | if ( $1->op_type != OP_TRANS | |
1228 | && $1->op_type != OP_TRANSR | |
1229 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1230 | { | |
1231 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1232 | SAVEFREESV(PL_compcv); | |
1233 | } else | |
1234 | $<ival>$ = 0; | |
1235 | } | |
69afcc21 | 1236 | SUBLEXSTART listexpr optrepl SUBLEXEND |
9b6b7be8 | 1237 | { $$ = pmruntime($1, $4, $5, 1, $<ival>2); } |
185c2e96 | 1238 | | BAREWORD |
378cc40b | 1239 | | listop |
88e1f1a2 | 1240 | | PLUGEXPR |
8d063cd8 LW |
1241 | ; |
1242 | ||
891be019 | 1243 | /* "my" declarations, with optional attributes */ |
09bef843 | 1244 | myattrterm: MY myterm myattrlist |
b5bbe64a | 1245 | { $$ = my_attrs($2,$3); } |
09bef843 | 1246 | | MY myterm |
28383d1a | 1247 | { $$ = localize($2,1); } |
e118fea3 FC |
1248 | | MY REFGEN myterm myattrlist |
1249 | { $$ = newUNOP(OP_REFGEN, 0, my_attrs($3,$4)); } | |
09bef843 SB |
1250 | ; |
1251 | ||
891be019 | 1252 | /* Things that can be "my"'d */ |
09bef843 | 1253 | myterm : '(' expr ')' |
b5bbe64a | 1254 | { $$ = sawparens($2); } |
09bef843 | 1255 | | '(' ')' |
b5bbe64a JH |
1256 | { $$ = sawparens(newNULLLIST()); } |
1257 | ||
09bef843 SB |
1258 | | scalar %prec '(' |
1259 | { $$ = $1; } | |
1260 | | hsh %prec '(' | |
1261 | { $$ = $1; } | |
1262 | | ary %prec '(' | |
1263 | { $$ = $1; } | |
1264 | ; | |
1265 | ||
891be019 | 1266 | /* Basic list expressions */ |
09b1cffe | 1267 | optlistexpr: /* NULL */ %prec PREC_LOW |
a9f5ab8d | 1268 | { $$ = NULL; } |
09b1cffe | 1269 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1270 | { $$ = $1; } |
1271 | ; | |
1272 | ||
09b1cffe | 1273 | optexpr: /* NULL */ |
a9f5ab8d | 1274 | { $$ = NULL; } |
79072805 LW |
1275 | | expr |
1276 | { $$ = $1; } | |
1277 | ; | |
1278 | ||
9b6b7be8 | 1279 | optrepl: /* NULL */ |
a9f5ab8d | 1280 | { $$ = NULL; } |
9b6b7be8 FC |
1281 | | '/' expr |
1282 | { $$ = $2; } | |
1283 | ; | |
1284 | ||
891be019 SC |
1285 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1286 | lexical */ | |
55497cff | 1287 | my_scalar: scalar |
624fa8bd | 1288 | { parser->in_my = 0; $$ = my($1); } |
55497cff | 1289 | ; |
1290 | ||
d39c26a6 FC |
1291 | my_var : scalar |
1292 | | ary | |
1293 | | hsh | |
1294 | ; | |
1295 | ||
1296 | refgen_topic: my_var | |
1297 | | amper | |
1298 | ; | |
1299 | ||
e118fea3 FC |
1300 | my_refgen: MY REFGEN |
1301 | | REFGEN MY | |
1302 | ; | |
1303 | ||
79072805 | 1304 | amper : '&' indirob |
b5bbe64a | 1305 | { $$ = newCVREF($1,$2); } |
a687059c LW |
1306 | ; |
1307 | ||
79072805 | 1308 | scalar : '$' indirob |
b5bbe64a | 1309 | { $$ = newSVREF($2); } |
a687059c LW |
1310 | ; |
1311 | ||
79072805 | 1312 | ary : '@' indirob |
f05e27e5 | 1313 | { $$ = newAVREF($2); |
b5bbe64a | 1314 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1315 | } |
79072805 LW |
1316 | ; |
1317 | ||
1318 | hsh : '%' indirob | |
f05e27e5 | 1319 | { $$ = newHVREF($2); |
b5bbe64a | 1320 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1321 | } |
79072805 LW |
1322 | ; |
1323 | ||
1324 | arylen : DOLSHARP indirob | |
b5bbe64a | 1325 | { $$ = newAVREF($2); } |
ff25e5db | 1326 | | term ARROW DOLSHARP '*' |
b5bbe64a | 1327 | { $$ = newAVREF($1); } |
79072805 LW |
1328 | ; |
1329 | ||
1330 | star : '*' indirob | |
b5bbe64a | 1331 | { $$ = newGVREF(0,$2); } |
79072805 LW |
1332 | ; |
1333 | ||
89f35911 FC |
1334 | sliceme : ary |
1335 | | term ARROW '@' | |
b5bbe64a | 1336 | { $$ = newAVREF($1); } |
89f35911 FC |
1337 | ; |
1338 | ||
76eba8ab FC |
1339 | kvslice : hsh |
1340 | | term ARROW '%' | |
b5bbe64a | 1341 | { $$ = newHVREF($1); } |
76eba8ab FC |
1342 | ; |
1343 | ||
89f35911 FC |
1344 | gelem : star |
1345 | | term ARROW '*' | |
b5bbe64a | 1346 | { $$ = newGVREF(0,$1); } |
89f35911 FC |
1347 | ; |
1348 | ||
891be019 | 1349 | /* Indirect objects */ |
185c2e96 | 1350 | indirob : BAREWORD |
79072805 | 1351 | { $$ = scalar($1); } |
fad39ff1 | 1352 | | scalar %prec PREC_LOW |
f05e27e5 | 1353 | { $$ = scalar($1); } |
79072805 | 1354 | | block |
3ad73efd | 1355 | { $$ = op_scope($1); } |
79072805 | 1356 | |
93a17b20 LW |
1357 | | PRIVATEREF |
1358 | { $$ = $1; } | |
8d063cd8 | 1359 | ; |