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