Commit | Line | Data |
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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
f05e27e5 | 3 | * Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall |
2eee27d7 | 4 | * Copyright (c) 2007, 2008, 2009, 2010, 2011 by Larry Wall and others |
a687059c | 5 | * |
9ef589d8 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
8d063cd8 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? | |
4ac71550 | 13 | * All that is gold does not glitter, not all those who wander are lost.' |
f05e27e5 | 14 | * |
4ac71550 TC |
15 | * [p.171 of _The Lord of the Rings_, I/x: "Strider"] |
16 | */ | |
17 | ||
18 | /* | |
f05e27e5 | 19 | * This file holds the grammar for the Perl language. If edited, you need |
166f8a29 DM |
20 | * to run regen_perly.pl, which re-creates the files perly.h, perly.tab |
21 | * and perly.act which are derived from this. | |
22 | * | |
23 | * The main job of of this grammar is to call the various newFOO() | |
24 | * functions in op.c to build a syntax tree of OP structs. | |
61296642 | 25 | * It relies on the lexer in toke.c to do the tokenizing. |
29522234 DM |
26 | * |
27 | * Note: due to the way that the cleanup code works WRT to freeing ops on | |
28 | * the parse stack, it is dangerous to assign to the $n variables within | |
29 | * an action. | |
166f8a29 DM |
30 | */ |
31 | ||
0de566d7 | 32 | /* Make the parser re-entrant. */ |
8d063cd8 | 33 | |
f39ff1f3 | 34 | %pure-parser |
8d063cd8 | 35 | |
28ac2b49 | 36 | %start grammar |
9d116dd7 | 37 | |
8d063cd8 | 38 | %union { |
d5c6462e DM |
39 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
40 | must always be 1st union member) */ | |
79072805 LW |
41 | char *pval; |
42 | OP *opval; | |
43 | GV *gvval; | |
8d063cd8 LW |
44 | } |
45 | ||
78cdf107 | 46 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 47 | |
f10ebf6c | 48 | %token <ival> '{' '}' '[' ']' '-' '+' '@' '%' '&' '=' '.' |
f0fcb552 | 49 | |
185c2e96 | 50 | %token <opval> BAREWORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
7eb971ee | 51 | %token <opval> FUNC0OP FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 52 | %token <opval> PLUGEXPR PLUGSTMT |
b5bbe64a JH |
53 | %token <pval> LABEL |
54 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE | |
55 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR | |
284a3526 | 56 | %token <ival> GIVEN WHERESO |
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 |
d39c26a6 FC |
74 | %type <opval> formname subname proto optsubbody cont my_scalar my_var |
75 | %type <opval> refgen_topic formblock | |
f05e27e5 | 76 | %type <opval> subattrlist myattrlist myattrterm myterm |
d3d9da4a DM |
77 | %type <opval> termbinop termunop anonymous termdo |
78 | %type <ival> sigslurpsigil | |
79 | %type <opval> sigvarname sigdefault sigscalarelem sigslurpelem | |
80 | %type <opval> sigelem siglist siglistornull subsignature | |
705fe0e5 | 81 | %type <opval> formstmtseq formline formarg |
79072805 | 82 | |
b5bbe64a | 83 | %nonassoc <ival> PREC_LOW |
fad39ff1 SM |
84 | %nonassoc LOOPEX |
85 | ||
b5bbe64a JH |
86 | %left <ival> OROP DOROP |
87 | %left <ival> ANDOP | |
88 | %right <ival> NOTOP | |
36477c24 | 89 | %nonassoc LSTOP LSTOPSUB |
b5bbe64a JH |
90 | %left <ival> ',' |
91 | %right <ival> ASSIGNOP | |
92 | %right <ival> '?' ':' | |
29d69c3c | 93 | %nonassoc DOTDOT |
b5bbe64a JH |
94 | %left <ival> OROR DORDOR |
95 | %left <ival> ANDAND | |
96 | %left <ival> BITOROP | |
97 | %left <ival> BITANDOP | |
a687059c LW |
98 | %nonassoc EQOP |
99 | %nonassoc RELOP | |
36477c24 | 100 | %nonassoc UNIOP UNIOPSUB |
20515881 | 101 | %nonassoc REQUIRE |
b5bbe64a | 102 | %left <ival> SHIFTOP |
a687059c LW |
103 | %left ADDOP |
104 | %left MULOP | |
b5bbe64a JH |
105 | %left <ival> MATCHOP |
106 | %right <ival> '!' '~' UMINUS REFGEN | |
107 | %right <ival> POWOP | |
108 | %nonassoc <ival> PREINC PREDEC POSTINC POSTDEC POSTJOIN | |
109 | %left <ival> ARROW | |
110 | %nonassoc <ival> ')' | |
111 | %left <ival> '(' | |
fad39ff1 | 112 | %left '[' '{' |
8d063cd8 LW |
113 | |
114 | %% /* RULES */ | |
115 | ||
28ac2b49 | 116 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
117 | grammar : GRAMPROG |
118 | { | |
624fa8bd | 119 | parser->expect = XSTATE; |
5a2060e2 | 120 | $<ival>$ = 0; |
727a8fe5 Z |
121 | } |
122 | remember stmtseq | |
123 | { | |
124 | newPROG(block_end($3,$4)); | |
8635e3c2 | 125 | PL_compiling.cop_seq = 0; |
727a8fe5 Z |
126 | $$ = 0; |
127 | } | |
78cdf107 Z |
128 | | GRAMEXPR |
129 | { | |
130 | parser->expect = XTERM; | |
5a2060e2 | 131 | $<ival>$ = 0; |
78cdf107 | 132 | } |
09b1cffe | 133 | optexpr |
78cdf107 Z |
134 | { |
135 | PL_eval_root = $3; | |
136 | $$ = 0; | |
137 | } | |
e53d8f76 Z |
138 | | GRAMBLOCK |
139 | { | |
140 | parser->expect = XBLOCK; | |
5a2060e2 | 141 | $<ival>$ = 0; |
e53d8f76 Z |
142 | } |
143 | block | |
144 | { | |
5f211341 | 145 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
146 | PL_eval_root = $3; |
147 | $$ = 0; | |
148 | yyunlex(); | |
0f8490d1 | 149 | parser->yychar = yytoken = YYEOF; |
8359b381 Z |
150 | } |
151 | | GRAMBARESTMT | |
152 | { | |
153 | parser->expect = XSTATE; | |
5a2060e2 | 154 | $<ival>$ = 0; |
8359b381 Z |
155 | } |
156 | barestmt | |
157 | { | |
158 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
159 | PL_eval_root = $3; |
160 | $$ = 0; | |
161 | yyunlex(); | |
0f8490d1 | 162 | parser->yychar = yytoken = YYEOF; |
e53d8f76 | 163 | } |
9eb5c532 | 164 | | GRAMFULLSTMT |
28ac2b49 | 165 | { |
9eb5c532 | 166 | parser->expect = XSTATE; |
5a2060e2 | 167 | $<ival>$ = 0; |
9eb5c532 Z |
168 | } |
169 | fullstmt | |
170 | { | |
5f211341 | 171 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 172 | PL_eval_root = $3; |
28ac2b49 Z |
173 | $$ = 0; |
174 | yyunlex(); | |
0f8490d1 | 175 | parser->yychar = yytoken = YYEOF; |
28ac2b49 | 176 | } |
07ffcb73 Z |
177 | | GRAMSTMTSEQ |
178 | { | |
179 | parser->expect = XSTATE; | |
5a2060e2 | 180 | $<ival>$ = 0; |
07ffcb73 | 181 | } |
5f211341 | 182 | stmtseq |
07ffcb73 Z |
183 | { |
184 | PL_eval_root = $3; | |
185 | $$ = 0; | |
186 | } | |
187 | ; | |
188 | ||
891be019 | 189 | /* An ordinary block */ |
5f211341 | 190 | block : '{' remember stmtseq '}' |
624fa8bd FC |
191 | { if (parser->copline > (line_t)$1) |
192 | parser->copline = (line_t)$1; | |
f05e27e5 | 193 | $$ = block_end($2, $3); |
f05e27e5 | 194 | } |
a0d0e21e LW |
195 | ; |
196 | ||
7c70caa5 | 197 | /* format body */ |
705fe0e5 | 198 | formblock: '=' remember ';' FORMRBRACK formstmtseq ';' '.' |
624fa8bd FC |
199 | { if (parser->copline > (line_t)$1) |
200 | parser->copline = (line_t)$1; | |
705fe0e5 | 201 | $$ = block_end($2, $5); |
7c70caa5 FC |
202 | } |
203 | ; | |
204 | ||
55497cff | 205 | remember: /* NULL */ /* start a full lexical scope */ |
34b54951 FC |
206 | { $$ = block_start(TRUE); |
207 | parser->parsed_sub = 0; } | |
55497cff | 208 | ; |
209 | ||
5f211341 | 210 | mblock : '{' mremember stmtseq '}' |
624fa8bd FC |
211 | { if (parser->copline > (line_t)$1) |
212 | parser->copline = (line_t)$1; | |
f05e27e5 | 213 | $$ = block_end($2, $3); |
f05e27e5 | 214 | } |
55497cff | 215 | ; |
216 | ||
217 | mremember: /* NULL */ /* start a partial lexical scope */ | |
34b54951 FC |
218 | { $$ = block_start(FALSE); |
219 | parser->parsed_sub = 0; } | |
8d063cd8 LW |
220 | ; |
221 | ||
eae48c89 | 222 | /* A sequence of statements in the program */ |
5f211341 | 223 | stmtseq : /* NULL */ |
a9f5ab8d | 224 | { $$ = NULL; } |
5f211341 | 225 | | stmtseq fullstmt |
2fcb4757 | 226 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 227 | PL_pad_reset_pending = TRUE; |
503de470 DM |
228 | if ($1 && $2) |
229 | PL_hints |= HINT_BLOCK_SCOPE; | |
230 | } | |
8d063cd8 LW |
231 | ; |
232 | ||
705fe0e5 FC |
233 | /* A sequence of format lines */ |
234 | formstmtseq: /* NULL */ | |
a9f5ab8d | 235 | { $$ = NULL; } |
705fe0e5 FC |
236 | | formstmtseq formline |
237 | { $$ = op_append_list(OP_LINESEQ, $1, $2); | |
238 | PL_pad_reset_pending = TRUE; | |
239 | if ($1 && $2) | |
240 | PL_hints |= HINT_BLOCK_SCOPE; | |
241 | } | |
242 | ; | |
243 | ||
8e720305 Z |
244 | /* A statement in the program, including optional labels */ |
245 | fullstmt: barestmt | |
eae48c89 | 246 | { |
b5bbe64a | 247 | $$ = $1 ? newSTATEOP(0, NULL, $1) : NULL; |
eae48c89 | 248 | } |
8e720305 Z |
249 | | labfullstmt |
250 | { $$ = $1; } | |
251 | ; | |
252 | ||
253 | labfullstmt: LABEL barestmt | |
254 | { | |
b5bbe64a | 255 | $$ = newSTATEOP(SVf_UTF8 * $1[strlen($1)+1], $1, $2); |
8e720305 Z |
256 | } |
257 | | LABEL labfullstmt | |
258 | { | |
b5bbe64a | 259 | $$ = newSTATEOP(SVf_UTF8 * $1[strlen($1)+1], $1, $2); |
8e720305 | 260 | } |
eae48c89 Z |
261 | ; |
262 | ||
263 | /* A bare statement, lacking label and other aspects of state op */ | |
264 | barestmt: PLUGSTMT | |
0d863452 | 265 | { $$ = $1; } |
7c70caa5 | 266 | | FORMAT startformsub formname formblock |
f05e27e5 | 267 | { |
eae48c89 | 268 | CV *fmtcv = PL_compcv; |
eae48c89 | 269 | newFORM($2, $3, $4); |
a9f5ab8d | 270 | $$ = NULL; |
4a273b91 | 271 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
74a9453a | 272 | pad_add_weakref(fmtcv); |
f05e27e5 | 273 | } |
8b9fb2f9 | 274 | parser->parsed_sub = 1; |
eae48c89 | 275 | } |
50278755 FC |
276 | | SUB subname startsub |
277 | { | |
278 | if ($2->op_type == OP_CONST) { | |
279 | const char *const name = | |
280 | SvPV_nolen_const(((SVOP*)$2)->op_sv); | |
281 | if (strEQ(name, "BEGIN") || strEQ(name, "END") | |
764212cf FC |
282 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
283 | || strEQ(name, "UNITCHECK")) | |
284 | CvSPECIAL_on(PL_compcv); | |
50278755 | 285 | } |
e07561e6 FC |
286 | else |
287 | /* State subs inside anonymous subs need to be | |
288 | clonable themselves. */ | |
6d5c2147 FC |
289 | if (CvANON(CvOUTSIDE(PL_compcv)) |
290 | || CvCLONE(CvOUTSIDE(PL_compcv)) | |
291 | || !PadnameIsSTATE(PadlistNAMESARRAY(CvPADLIST( | |
292 | CvOUTSIDE(PL_compcv) | |
293 | ))[$2->op_targ])) | |
e07561e6 | 294 | CvCLONE_on(PL_compcv); |
624fa8bd FC |
295 | parser->in_my = 0; |
296 | parser->in_my_stash = NULL; | |
764212cf | 297 | } |
30d9c59b | 298 | proto subattrlist optsubbody |
eae48c89 Z |
299 | { |
300 | SvREFCNT_inc_simple_void(PL_compcv); | |
50278755 FC |
301 | $2->op_type == OP_CONST |
302 | ? newATTRSUB($3, $2, $5, $6, $7) | |
303 | : newMYSUB($3, $2, $5, $6, $7) | |
50278755 | 304 | ; |
a9f5ab8d | 305 | $$ = NULL; |
764212cf | 306 | intro_my(); |
34b54951 | 307 | parser->parsed_sub = 1; |
f05e27e5 | 308 | } |
abcf453d PM |
309 | | SUB subname startsub |
310 | { | |
311 | if ($2->op_type == OP_CONST) { | |
312 | const char *const name = | |
313 | SvPV_nolen_const(((SVOP*)$2)->op_sv); | |
314 | if (strEQ(name, "BEGIN") || strEQ(name, "END") | |
315 | || strEQ(name, "INIT") || strEQ(name, "CHECK") | |
316 | || strEQ(name, "UNITCHECK")) | |
317 | CvSPECIAL_on(PL_compcv); | |
318 | } | |
319 | else | |
320 | /* State subs inside anonymous subs need to be | |
321 | clonable themselves. */ | |
322 | if (CvANON(CvOUTSIDE(PL_compcv)) | |
323 | || CvCLONE(CvOUTSIDE(PL_compcv)) | |
324 | || !PadnameIsSTATE(PadlistNAMESARRAY(CvPADLIST( | |
325 | CvOUTSIDE(PL_compcv) | |
326 | ))[$2->op_targ])) | |
327 | CvCLONE_on(PL_compcv); | |
328 | parser->in_my = 0; | |
329 | parser->in_my_stash = NULL; | |
330 | } | |
331 | remember subsignature subattrlist '{' stmtseq '}' | |
332 | { | |
333 | OP *body; | |
334 | if (parser->copline > (line_t)$8) | |
335 | parser->copline = (line_t)$8; | |
336 | body = block_end($5, | |
337 | op_append_list(OP_LINESEQ, $6, $9)); | |
338 | ||
339 | SvREFCNT_inc_simple_void(PL_compcv); | |
340 | $2->op_type == OP_CONST | |
341 | ? newATTRSUB($3, $2, NULL, $7, body) | |
342 | : newMYSUB($3, $2, NULL, $7, body) | |
343 | ; | |
a9f5ab8d | 344 | $$ = NULL; |
abcf453d PM |
345 | intro_my(); |
346 | parser->parsed_sub = 1; | |
347 | } | |
185c2e96 | 348 | | PACKAGE BAREWORD BAREWORD ';' |
5f211341 | 349 | { |
eae48c89 Z |
350 | package($3); |
351 | if ($2) | |
352 | package_version($2); | |
a9f5ab8d | 353 | $$ = NULL; |
eae48c89 Z |
354 | } |
355 | | USE startsub | |
356 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
185c2e96 | 357 | BAREWORD BAREWORD optlistexpr ';' |
eae48c89 Z |
358 | { |
359 | SvREFCNT_inc_simple_void(PL_compcv); | |
b5bbe64a | 360 | utilize($1, $2, $4, $5, $6); |
34b54951 | 361 | parser->parsed_sub = 1; |
a9f5ab8d | 362 | $$ = NULL; |
eae48c89 | 363 | } |
417a992d | 364 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 365 | { |
3ad73efd Z |
366 | $$ = block_end($3, |
367 | newCONDOP(0, $4, op_scope($6), $7)); | |
624fa8bd | 368 | parser->copline = (line_t)$1; |
eae48c89 | 369 | } |
08b3e84f | 370 | | UNLESS '(' remember mexpr ')' mblock else |
eae48c89 | 371 | { |
3ad73efd | 372 | $$ = block_end($3, |
08b3e84f | 373 | newCONDOP(0, $4, $7, op_scope($6))); |
624fa8bd | 374 | parser->copline = (line_t)$1; |
eae48c89 | 375 | } |
b5a64814 | 376 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 377 | { |
5d051ee0 | 378 | $$ = block_end($3, newGIVENOP($4, op_scope($6), 0)); |
624fa8bd | 379 | parser->copline = (line_t)$1; |
eae48c89 | 380 | } |
284a3526 | 381 | | WHERESO '(' remember mexpr ')' mblock |
f68519ee Z |
382 | { |
383 | OP *cond = $4; | |
384 | if ($1) | |
385 | cond = newBINOP(OP_SMARTMATCH, 0, newDEFSVOP(), | |
386 | scalar(cond)); | |
387 | $$ = block_end($3, newWHERESOOP(cond, op_scope($6))); | |
388 | } | |
417a992d | 389 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
390 | { |
391 | $$ = block_end($3, | |
a9f5ab8d | 392 | newWHILEOP(0, 1, NULL, |
94bf0465 | 393 | $4, $7, $8, $6)); |
624fa8bd | 394 | parser->copline = (line_t)$1; |
eae48c89 | 395 | } |
417a992d | 396 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
397 | { |
398 | $$ = block_end($3, | |
a9f5ab8d | 399 | newWHILEOP(0, 1, NULL, |
94bf0465 | 400 | $4, $7, $8, $6)); |
624fa8bd | 401 | parser->copline = (line_t)$1; |
eae48c89 | 402 | } |
2d0e3c96 FC |
403 | | FOR '(' remember mnexpr ';' |
404 | { parser->expect = XTERM; } | |
405 | texpr ';' | |
406 | { parser->expect = XTERM; } | |
407 | mintro mnexpr ')' | |
eae48c89 Z |
408 | mblock |
409 | { | |
b5bbe64a | 410 | OP *initop = $4; |
a9f5ab8d | 411 | OP *forop = newWHILEOP(0, 1, NULL, |
2d0e3c96 | 412 | scalar($7), $13, $11, $10); |
eae48c89 Z |
413 | if (initop) { |
414 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
415 | op_append_elem(OP_LINESEQ, | |
416 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
417 | forop)); | |
5f211341 | 418 | } |
0f602692 | 419 | PL_hints |= HINT_BLOCK_SCOPE; |
eae48c89 | 420 | $$ = block_end($3, forop); |
624fa8bd | 421 | parser->copline = (line_t)$1; |
eae48c89 | 422 | } |
417a992d | 423 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 424 | { |
94bf0465 | 425 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
624fa8bd | 426 | parser->copline = (line_t)$1; |
eae48c89 | 427 | } |
417a992d | 428 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 429 | { |
94bf0465 | 430 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 431 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
624fa8bd | 432 | parser->copline = (line_t)$1; |
eae48c89 | 433 | } |
e118fea3 FC |
434 | | FOR my_refgen remember my_var |
435 | { parser->in_my = 0; $<opval>$ = my($4); } | |
d39c26a6 FC |
436 | '(' mexpr ')' mblock cont |
437 | { | |
438 | $$ = block_end( | |
e118fea3 | 439 | $3, |
d39c26a6 FC |
440 | newFOROP(0, |
441 | op_lvalue( | |
442 | newUNOP(OP_REFGEN, 0, | |
e118fea3 | 443 | $<opval>5), |
d39c26a6 | 444 | OP_ENTERLOOP), |
e118fea3 | 445 | $7, $9, $10) |
d39c26a6 FC |
446 | ); |
447 | parser->copline = (line_t)$1; | |
448 | } | |
449 | | FOR REFGEN refgen_topic '(' remember mexpr ')' mblock cont | |
450 | { | |
451 | $$ = block_end($5, newFOROP( | |
452 | 0, op_lvalue(newUNOP(OP_REFGEN, 0, | |
96801525 | 453 | $3), |
d39c26a6 FC |
454 | OP_ENTERLOOP), $6, $8, $9)); |
455 | parser->copline = (line_t)$1; | |
456 | } | |
417a992d | 457 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
458 | { |
459 | $$ = block_end($3, | |
a9f5ab8d | 460 | newFOROP(0, NULL, $4, $6, $7)); |
624fa8bd | 461 | parser->copline = (line_t)$1; |
eae48c89 Z |
462 | } |
463 | | block cont | |
464 | { | |
465 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
466 | $$ = newWHILEOP(0, 1, NULL, |
467 | NULL, $1, $2, 0); | |
eae48c89 | 468 | } |
185c2e96 | 469 | | PACKAGE BAREWORD BAREWORD '{' remember |
eae48c89 | 470 | { |
eae48c89 | 471 | package($3); |
eae48c89 | 472 | if ($2) { |
eae48c89 | 473 | package_version($2); |
eae48c89 Z |
474 | } |
475 | } | |
476 | stmtseq '}' | |
477 | { | |
478 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
479 | $$ = newWHILEOP(0, 1, NULL, |
480 | NULL, block_end($5, $7), NULL, 0); | |
624fa8bd FC |
481 | if (parser->copline > (line_t)$4) |
482 | parser->copline = (line_t)$4; | |
eae48c89 Z |
483 | } |
484 | | sideff ';' | |
485 | { | |
eae48c89 | 486 | $$ = $1; |
eae48c89 | 487 | } |
29d69c3c Z |
488 | | YADAYADA ';' |
489 | { | |
490 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
491 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
492 | } | |
eae48c89 Z |
493 | | ';' |
494 | { | |
a9f5ab8d | 495 | $$ = NULL; |
624fa8bd | 496 | parser->copline = NOLINE; |
5f211341 | 497 | } |
8d063cd8 LW |
498 | ; |
499 | ||
705fe0e5 FC |
500 | /* Format line */ |
501 | formline: THING formarg | |
502 | { OP *list; | |
503 | if ($2) { | |
504 | OP *term = $2; | |
705fe0e5 FC |
505 | list = op_append_elem(OP_LIST, $1, term); |
506 | } | |
507 | else { | |
705fe0e5 | 508 | list = $1; |
705fe0e5 | 509 | } |
624fa8bd FC |
510 | if (parser->copline == NOLINE) |
511 | parser->copline = CopLINE(PL_curcop)-1; | |
512 | else parser->copline--; | |
705fe0e5 | 513 | $$ = newSTATEOP(0, NULL, |
03d05f6e | 514 | op_convert_list(OP_FORMLINE, 0, list)); |
705fe0e5 FC |
515 | } |
516 | ; | |
517 | ||
518 | formarg : /* NULL */ | |
519 | { $$ = NULL; } | |
520 | | FORMLBRACK stmtseq FORMRBRACK | |
521 | { $$ = op_unscope($2); } | |
522 | ; | |
523 | ||
891be019 | 524 | /* An expression which may have a side-effect */ |
a687059c | 525 | sideff : error |
a9f5ab8d | 526 | { $$ = NULL; } |
a687059c | 527 | | expr |
79072805 | 528 | { $$ = $1; } |
a687059c | 529 | | expr IF expr |
b5bbe64a | 530 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 531 | | expr UNLESS expr |
b5bbe64a | 532 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 533 | | expr WHILE expr |
b5bbe64a | 534 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 535 | | expr UNTIL iexpr |
b5bbe64a | 536 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); } |
ecca16b0 | 537 | | expr FOR expr |
a9f5ab8d | 538 | { $$ = newFOROP(0, NULL, $3, $1, NULL); |
624fa8bd | 539 | parser->copline = (line_t)$2; } |
284a3526 | 540 | | expr WHERESO expr |
f68519ee Z |
541 | { |
542 | OP *cond = $3; | |
543 | if ($2) | |
544 | cond = newBINOP(OP_SMARTMATCH, 0, newDEFSVOP(), | |
545 | scalar(cond)); | |
546 | $$ = newWHERESOOP(cond, op_scope($1)); | |
547 | } | |
79072805 LW |
548 | ; |
549 | ||
891be019 | 550 | /* else and elsif blocks */ |
79072805 | 551 | else : /* NULL */ |
a9f5ab8d | 552 | { $$ = NULL; } |
55497cff | 553 | | ELSE mblock |
3ad73efd Z |
554 | { |
555 | ($2)->op_flags |= OPf_PARENS; | |
556 | $$ = op_scope($2); | |
f05e27e5 | 557 | } |
417a992d | 558 | | ELSIF '(' mexpr ')' mblock else |
624fa8bd | 559 | { parser->copline = (line_t)$1; |
3ad73efd Z |
560 | $$ = newCONDOP(0, |
561 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
562 | op_scope($5), $6); | |
563 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 | 564 | } |
79072805 LW |
565 | ; |
566 | ||
891be019 | 567 | /* Continue blocks */ |
79072805 | 568 | cont : /* NULL */ |
a9f5ab8d | 569 | { $$ = NULL; } |
79072805 | 570 | | CONTINUE block |
b5bbe64a | 571 | { $$ = op_scope($2); } |
79072805 LW |
572 | ; |
573 | ||
a034e688 DM |
574 | /* determine whether there are any new my declarations */ |
575 | mintro : /* NULL */ | |
576 | { $$ = (PL_min_intro_pending && | |
577 | PL_max_intro_pending >= PL_min_intro_pending); | |
578 | intro_my(); } | |
579 | ||
891be019 | 580 | /* Normal expression */ |
8d063cd8 | 581 | nexpr : /* NULL */ |
a9f5ab8d | 582 | { $$ = NULL; } |
8d063cd8 LW |
583 | | sideff |
584 | ; | |
585 | ||
891be019 | 586 | /* Boolean expression */ |
8d063cd8 | 587 | texpr : /* NULL means true */ |
f05e27e5 DM |
588 | { YYSTYPE tmplval; |
589 | (void)scan_num("1", &tmplval); | |
590 | $$ = tmplval.opval; } | |
8d063cd8 LW |
591 | | expr |
592 | ; | |
593 | ||
891be019 | 594 | /* Inverted boolean expression */ |
55497cff | 595 | iexpr : expr |
596 | { $$ = invert(scalar($1)); } | |
597 | ; | |
598 | ||
891be019 | 599 | /* Expression with its own lexical scope */ |
55497cff | 600 | mexpr : expr |
bbce6d69 | 601 | { $$ = $1; intro_my(); } |
602 | ; | |
603 | ||
604 | mnexpr : nexpr | |
605 | { $$ = $1; intro_my(); } | |
55497cff | 606 | ; |
607 | ||
185c2e96 | 608 | formname: BAREWORD { $$ = $1; } |
a9f5ab8d | 609 | | /* NULL */ { $$ = NULL; } |
8d063cd8 LW |
610 | ; |
611 | ||
fa83b5b6 | 612 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
613 | { $$ = start_subparse(FALSE, 0); |
614 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 615 | |
28757baa | 616 | ; |
617 | ||
618 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
619 | { $$ = start_subparse(FALSE, CVf_ANON); |
620 | SAVEFREESV(PL_compcv); } | |
28757baa | 621 | ; |
622 | ||
44a8e56a | 623 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
624 | { $$ = start_subparse(TRUE, 0); |
625 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 626 | ; |
627 | ||
891be019 | 628 | /* Name of a subroutine - must be a bareword, could be special */ |
185c2e96 | 629 | subname : BAREWORD |
4210d3f1 | 630 | | PRIVATEREF |
a0d0e21e LW |
631 | ; |
632 | ||
891be019 | 633 | /* Subroutine prototype */ |
4633a7c4 | 634 | proto : /* NULL */ |
a9f5ab8d | 635 | { $$ = NULL; } |
4633a7c4 LW |
636 | | THING |
637 | ; | |
28757baa | 638 | |
891be019 | 639 | /* Optional list of subroutine attributes */ |
09bef843 | 640 | subattrlist: /* NULL */ |
a9f5ab8d | 641 | { $$ = NULL; } |
09bef843 | 642 | | COLONATTR THING |
b5bbe64a | 643 | { $$ = $2; } |
09bef843 | 644 | | COLONATTR |
a9f5ab8d | 645 | { $$ = NULL; } |
09bef843 SB |
646 | ; |
647 | ||
891be019 | 648 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 649 | myattrlist: COLONATTR THING |
b5bbe64a | 650 | { $$ = $2; } |
09bef843 | 651 | | COLONATTR |
a9f5ab8d | 652 | { $$ = NULL; } |
09bef843 SB |
653 | ; |
654 | ||
abcf453d | 655 | |
d3d9da4a DM |
656 | |
657 | /* -------------------------------------- | |
658 | * subroutine signature parsing | |
659 | */ | |
660 | ||
661 | /* the '' or 'foo' part of a '$' or '@foo' etc signature variable */ | |
49fb8620 | 662 | sigvarname: /* NULL */ |
a9f5ab8d | 663 | { parser->in_my = 0; $$ = NULL; } |
d3d9da4a | 664 | | PRIVATEREF |
49fb8620 | 665 | { parser->in_my = 0; $$ = $1; } |
d3d9da4a DM |
666 | ; |
667 | ||
668 | sigslurpsigil: | |
669 | '@' | |
670 | { $$ = '@'; } | |
671 | | '%' | |
672 | { $$ = '%'; } | |
673 | ||
674 | /* @, %, @foo, %foo */ | |
675 | sigslurpelem: sigslurpsigil sigvarname sigdefault/* def only to catch errors */ | |
676 | { | |
4fa06845 DM |
677 | I32 sigil = $1; |
678 | OP *var = $2; | |
d3d9da4a | 679 | OP *defexpr = $3; |
d3d9da4a | 680 | |
036bbc13 | 681 | if (parser->sig_slurpy) |
d3d9da4a | 682 | yyerror("Multiple slurpy parameters not allowed"); |
036bbc13 | 683 | parser->sig_slurpy = (char)sigil; |
d3d9da4a DM |
684 | |
685 | if (defexpr) | |
bb6b75cd | 686 | yyerror("A slurpy parameter may not have " |
d3d9da4a DM |
687 | "a default value"); |
688 | ||
a9f5ab8d | 689 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
690 | } |
691 | ; | |
692 | ||
693 | /* default part of sub signature scalar element: i.e. '= default_expr' */ | |
694 | sigdefault: /* NULL */ | |
a9f5ab8d | 695 | { $$ = NULL; } |
d3d9da4a DM |
696 | | ASSIGNOP |
697 | { $$ = newOP(OP_NULL, 0); } | |
698 | | ASSIGNOP term | |
699 | { $$ = $2; } | |
700 | ||
701 | ||
702 | /* subroutine signature scalar element: e.g. '$x', '$=', '$x = $default' */ | |
703 | sigscalarelem: | |
704 | '$' sigvarname sigdefault | |
705 | { | |
706 | OP *var = $2; | |
707 | OP *defexpr = $3; | |
d3d9da4a | 708 | |
036bbc13 | 709 | if (parser->sig_slurpy) |
d3d9da4a DM |
710 | yyerror("Slurpy parameter not last"); |
711 | ||
036bbc13 | 712 | parser->sig_elems++; |
d3d9da4a | 713 | |
d3d9da4a | 714 | if (defexpr) { |
036bbc13 | 715 | parser->sig_optelems++; |
4fa06845 DM |
716 | |
717 | if ( defexpr->op_type == OP_NULL | |
d3d9da4a DM |
718 | && !(defexpr->op_flags & OPf_KIDS)) |
719 | { | |
4fa06845 DM |
720 | /* handle '$=' special case */ |
721 | if (var) | |
722 | yyerror("Optional parameter " | |
723 | "lacks default expression"); | |
d3d9da4a DM |
724 | op_free(defexpr); |
725 | } | |
4fa06845 DM |
726 | else { |
727 | /* a normal '=default' expression */ | |
728 | OP *defop = (OP*)alloc_LOGOP(OP_ARGDEFELEM, | |
729 | defexpr, | |
730 | LINKLIST(defexpr)); | |
731 | /* re-purpose op_targ to hold @_ index */ | |
6daeaaa3 | 732 | defop->op_targ = |
036bbc13 | 733 | (PADOFFSET)(parser->sig_elems - 1); |
4fa06845 DM |
734 | |
735 | if (var) { | |
736 | var->op_flags |= OPf_STACKED; | |
737 | (void)op_sibling_splice(var, | |
738 | NULL, 0, defop); | |
739 | scalar(defop); | |
740 | } | |
741 | else | |
742 | var = newUNOP(OP_NULL, 0, defop); | |
743 | ||
744 | LINKLIST(var); | |
745 | /* NB: normally the first child of a | |
746 | * logop is executed before the logop, | |
747 | * and it pushes a boolean result | |
748 | * ready for the logop. For ARGDEFELEM, | |
749 | * the op itself does the boolean | |
750 | * calculation, so set the first op to | |
751 | * it instead. | |
752 | */ | |
753 | var->op_next = defop; | |
754 | defexpr->op_next = var; | |
d3d9da4a DM |
755 | } |
756 | } | |
757 | else { | |
036bbc13 | 758 | if (parser->sig_optelems) |
d3d9da4a DM |
759 | yyerror("Mandatory parameter " |
760 | "follows optional parameter"); | |
d3d9da4a DM |
761 | } |
762 | ||
a9f5ab8d | 763 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
764 | } |
765 | ; | |
766 | ||
767 | ||
768 | /* subroutine signature element: e.g. '$x = $default' or '%h' */ | |
769 | sigelem: sigscalarelem | |
49fb8620 | 770 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a | 771 | | sigslurpelem |
49fb8620 | 772 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a DM |
773 | ; |
774 | ||
775 | /* list of subroutine signature elements */ | |
776 | siglist: | |
777 | siglist ',' | |
778 | { $$ = $1; } | |
779 | | siglist ',' sigelem | |
30d9c59b | 780 | { |
d3d9da4a | 781 | $$ = op_append_list(OP_LINESEQ, $1, $3); |
30d9c59b | 782 | } |
d3d9da4a DM |
783 | | sigelem %prec PREC_LOW |
784 | { $$ = $1; } | |
30d9c59b Z |
785 | ; |
786 | ||
d3d9da4a DM |
787 | /* () or (....) */ |
788 | siglistornull: /* NULL */ | |
a9f5ab8d | 789 | { $$ = NULL; } |
d3d9da4a DM |
790 | | siglist |
791 | { $$ = $1; } | |
792 | ||
793 | /* Subroutine signature */ | |
794 | subsignature: '(' | |
795 | { | |
796 | ENTER; | |
036bbc13 FC |
797 | SAVEIV(parser->sig_elems); |
798 | SAVEIV(parser->sig_optelems); | |
799 | SAVEI8(parser->sig_slurpy); | |
800 | parser->sig_elems = 0; | |
801 | parser->sig_optelems = 0; | |
802 | parser->sig_slurpy = 0; | |
49fb8620 | 803 | parser->in_my = KEY_sigvar; |
d3d9da4a DM |
804 | } |
805 | siglistornull | |
806 | ')' | |
807 | { | |
4fa06845 DM |
808 | OP *sigops = $3; |
809 | UNOP_AUX_item *aux; | |
810 | OP *check; | |
d3d9da4a | 811 | |
bdc377e5 FC |
812 | if (!parser->error_count) { |
813 | assert(FEATURE_SIGNATURES_IS_ENABLED); | |
814 | } | |
d3d9da4a DM |
815 | |
816 | /* We shouldn't get here otherwise */ | |
817 | Perl_ck_warner_d(aTHX_ | |
818 | packWARN(WARN_EXPERIMENTAL__SIGNATURES), | |
819 | "The signatures feature is experimental"); | |
820 | ||
4fa06845 DM |
821 | aux = (UNOP_AUX_item*)PerlMemShared_malloc( |
822 | sizeof(UNOP_AUX_item) * 3); | |
036bbc13 FC |
823 | aux[0].iv = parser->sig_elems; |
824 | aux[1].iv = parser->sig_optelems; | |
825 | aux[2].iv = parser->sig_slurpy; | |
4fa06845 DM |
826 | check = newUNOP_AUX(OP_ARGCHECK, 0, NULL, aux); |
827 | sigops = op_prepend_elem(OP_LINESEQ, check, sigops); | |
828 | sigops = op_prepend_elem(OP_LINESEQ, | |
829 | newSTATEOP(0, NULL, NULL), | |
830 | sigops); | |
831 | /* a nextstate at the end handles context | |
832 | * correctly for an empty sub body */ | |
833 | $$ = op_append_elem(OP_LINESEQ, | |
834 | sigops, | |
835 | newSTATEOP(0, NULL, NULL)); | |
d3d9da4a | 836 | |
49fb8620 | 837 | parser->in_my = 0; |
d3d9da4a DM |
838 | parser->expect = XATTRBLOCK; |
839 | LEAVE; | |
840 | } | |
841 | ; | |
842 | ||
843 | ||
844 | ||
30d9c59b | 845 | /* Optional subroutine body, for named subroutine declaration */ |
abcf453d | 846 | optsubbody: block |
a9f5ab8d | 847 | | ';' { $$ = NULL; } |
8d063cd8 LW |
848 | ; |
849 | ||
891be019 | 850 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 851 | expr : expr ANDOP expr |
b5bbe64a | 852 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 853 | | expr OROP expr |
b5bbe64a | 854 | { $$ = newLOGOP($2, 0, $1, $3); } |
c963b151 | 855 | | expr DOROP expr |
b5bbe64a | 856 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
09b1cffe | 857 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
858 | ; |
859 | ||
891be019 | 860 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 861 | listexpr: listexpr ',' |
b5bbe64a | 862 | { $$ = $1; } |
09b1cffe | 863 | | listexpr ',' term |
abcf453d | 864 | { |
29522234 | 865 | OP* term = $3; |
2fcb4757 | 866 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 867 | } |
fad39ff1 | 868 | | term %prec PREC_LOW |
8d063cd8 LW |
869 | ; |
870 | ||
891be019 | 871 | /* List operators */ |
09b1cffe | 872 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
03d05f6e | 873 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 874 | op_prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); |
f05e27e5 | 875 | } |
891be019 | 876 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
03d05f6e | 877 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 878 | op_prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); |
f05e27e5 | 879 | } |
417a992d | 880 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
03d05f6e | 881 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
882 | op_append_elem(OP_LIST, |
883 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
b46e009d | 884 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 885 | } |
891be019 | 886 | | term ARROW method /* $foo->bar */ |
03d05f6e | 887 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 888 | op_append_elem(OP_LIST, scalar($1), |
b46e009d | 889 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 890 | } |
09b1cffe | 891 | | METHOD indirob optlistexpr /* new Class @args */ |
03d05f6e | 892 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
893 | op_append_elem(OP_LIST, |
894 | op_prepend_elem(OP_LIST, $2, $3), | |
b46e009d | 895 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 896 | } |
09b1cffe | 897 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
03d05f6e | 898 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
899 | op_append_elem(OP_LIST, |
900 | op_prepend_elem(OP_LIST, $2, $4), | |
b46e009d | 901 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 902 | } |
09b1cffe | 903 | | LSTOP optlistexpr /* print @args */ |
03d05f6e | 904 | { $$ = op_convert_list($1, 0, $2); } |
09b1cffe | 905 | | FUNC '(' optexpr ')' /* print (@args) */ |
03d05f6e | 906 | { $$ = op_convert_list($1, 0, $3); } |
718a7425 | 907 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 908 | { SvREFCNT_inc_simple_void(PL_compcv); |
a9f5ab8d | 909 | $<opval>$ = newANONATTRSUB($2, 0, NULL, $3); } |
09b1cffe | 910 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 911 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
912 | op_append_elem(OP_LIST, |
913 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 914 | } |
a687059c LW |
915 | ; |
916 | ||
891be019 | 917 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
918 | method : METHOD |
919 | | scalar | |
920 | ; | |
921 | ||
891be019 | 922 | /* Some kind of subscripted expression */ |
89f35911 | 923 | subscripted: gelem '{' expr ';' '}' /* *main::{something} */ |
891be019 SC |
924 | /* In this and all the hash accessors, ';' is |
925 | * provided by the tokeniser */ | |
5c86b6df | 926 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
891be019 | 927 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 | 928 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
f05e27e5 | 929 | } |
891be019 | 930 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
931 | { $$ = newBINOP(OP_AELEM, 0, |
932 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 933 | scalar($4)); |
f05e27e5 | 934 | } |
891be019 | 935 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
936 | { $$ = newBINOP(OP_AELEM, 0, |
937 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 938 | scalar($3)); |
f05e27e5 | 939 | } |
5a63ceef | 940 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 941 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
f05e27e5 | 942 | } |
891be019 | 943 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
944 | { $$ = newBINOP(OP_HELEM, 0, |
945 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 946 | jmaybe($4)); } |
891be019 | 947 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
948 | { $$ = newBINOP(OP_HELEM, 0, |
949 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 950 | jmaybe($3)); } |
891be019 | 951 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 952 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
b5bbe64a | 953 | newCVREF(0, scalar($1))); } |
891be019 | 954 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 955 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 956 | op_append_elem(OP_LIST, $4, |
b5bbe64a | 957 | newCVREF(0, scalar($1)))); } |
fad39ff1 | 958 | |
417a992d | 959 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 960 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 961 | op_append_elem(OP_LIST, $3, |
b5bbe64a | 962 | newCVREF(0, scalar($1)))); } |
417a992d | 963 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 964 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
b5bbe64a | 965 | newCVREF(0, scalar($1))); } |
9a9798c2 | 966 | | '(' expr ')' '[' expr ']' /* list slice */ |
b5bbe64a | 967 | { $$ = newSLICEOP(0, $5, $2); } |
ea25a9b2 | 968 | | QWLIST '[' expr ']' /* list literal slice */ |
b5bbe64a | 969 | { $$ = newSLICEOP(0, $3, $1); } |
9a9798c2 | 970 | | '(' ')' '[' expr ']' /* empty list slice! */ |
a9f5ab8d | 971 | { $$ = newSLICEOP(0, $4, NULL); } |
891be019 | 972 | ; |
fad39ff1 | 973 | |
891be019 | 974 | /* Binary operators between terms */ |
3f5e9543 | 975 | termbinop: term ASSIGNOP term /* $x = $y, $x += $y */ |
b5bbe64a | 976 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } |
891be019 | 977 | | term POWOP term /* $x ** $y */ |
b5bbe64a | 978 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 979 | | term MULOP term /* $x * $y, $x x $y */ |
b5bbe64a | 980 | { if ($2 != OP_REPEAT) |
79072805 | 981 | scalar($1); |
b5bbe64a | 982 | $$ = newBINOP($2, 0, $1, scalar($3)); |
f05e27e5 | 983 | } |
891be019 | 984 | | term ADDOP term /* $x + $y */ |
b5bbe64a | 985 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 986 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
b5bbe64a | 987 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 988 | | term RELOP term /* $x > $y, etc. */ |
b5bbe64a | 989 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 990 | | term EQOP term /* $x == $y, $x eq $y */ |
b5bbe64a | 991 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 992 | | term BITANDOP term /* $x & $y */ |
b5bbe64a | 993 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 994 | | term BITOROP term /* $x | $y */ |
b5bbe64a | 995 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 996 | | term DOTDOT term /* $x..$y, $x...$y */ |
b5bbe64a | 997 | { $$ = newRANGE($2, scalar($1), scalar($3)); } |
891be019 | 998 | | term ANDAND term /* $x && $y */ |
b5bbe64a | 999 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
891be019 | 1000 | | term OROR term /* $x || $y */ |
b5bbe64a | 1001 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
c963b151 | 1002 | | term DORDOR term /* $x // $y */ |
b5bbe64a | 1003 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
891be019 | 1004 | | term MATCHOP term /* $x =~ /$y/ */ |
b5bbe64a | 1005 | { $$ = bind_match($2, $1, $3); } |
891be019 | 1006 | ; |
8d063cd8 | 1007 | |
891be019 SC |
1008 | /* Unary operators and terms */ |
1009 | termunop : '-' term %prec UMINUS /* -$x */ | |
b5bbe64a | 1010 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
891be019 | 1011 | | '+' term %prec UMINUS /* +$x */ |
b5bbe64a JH |
1012 | { $$ = $2; } |
1013 | ||
891be019 | 1014 | | '!' term /* !$x */ |
b5bbe64a | 1015 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1016 | | '~' term /* ~$x */ |
8823cb89 | 1017 | { $$ = newUNOP($1, 0, scalar($2)); } |
891be019 | 1018 | | term POSTINC /* $x++ */ |
79072805 | 1019 | { $$ = newUNOP(OP_POSTINC, 0, |
b5bbe64a | 1020 | op_lvalue(scalar($1), OP_POSTINC)); } |
891be019 | 1021 | | term POSTDEC /* $x-- */ |
79072805 | 1022 | { $$ = newUNOP(OP_POSTDEC, 0, |
b5bbe64a | 1023 | op_lvalue(scalar($1), OP_POSTDEC));} |
cc624add | 1024 | | term POSTJOIN /* implicit join after interpolated ->@ */ |
03d05f6e | 1025 | { $$ = op_convert_list(OP_JOIN, 0, |
cc624add FC |
1026 | op_append_elem( |
1027 | OP_LIST, | |
1028 | newSVREF(scalar( | |
1029 | newSVOP(OP_CONST,0, | |
1030 | newSVpvs("\"")) | |
1031 | )), | |
1032 | $1 | |
1033 | )); | |
cc624add | 1034 | } |
891be019 | 1035 | | PREINC term /* ++$x */ |
79072805 | 1036 | { $$ = newUNOP(OP_PREINC, 0, |
b5bbe64a | 1037 | op_lvalue(scalar($2), OP_PREINC)); } |
891be019 | 1038 | | PREDEC term /* --$x */ |
79072805 | 1039 | { $$ = newUNOP(OP_PREDEC, 0, |
b5bbe64a | 1040 | op_lvalue(scalar($2), OP_PREDEC)); } |
891be019 SC |
1041 | |
1042 | ; | |
1043 | ||
1044 | /* Constructors for anonymous data */ | |
1045 | anonymous: '[' expr ']' | |
b5bbe64a | 1046 | { $$ = newANONLIST($2); } |
891be019 | 1047 | | '[' ']' |
a9f5ab8d | 1048 | { $$ = newANONLIST(NULL);} |
891be019 | 1049 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
b5bbe64a | 1050 | { $$ = newANONHASH($2); } |
891be019 | 1051 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
a9f5ab8d | 1052 | { $$ = newANONHASH(NULL); } |
abcf453d | 1053 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1054 | { SvREFCNT_inc_simple_void(PL_compcv); |
b5bbe64a | 1055 | $$ = newANONATTRSUB($2, $3, $4, $5); } |
abcf453d PM |
1056 | | ANONSUB startanonsub remember subsignature subattrlist '{' stmtseq '}' %prec '(' |
1057 | { | |
1058 | OP *body; | |
1059 | if (parser->copline > (line_t)$6) | |
1060 | parser->copline = (line_t)$6; | |
1061 | body = block_end($3, | |
1062 | op_append_list(OP_LINESEQ, $4, $7)); | |
1063 | SvREFCNT_inc_simple_void(PL_compcv); | |
1064 | $$ = newANONATTRSUB($2, NULL, $5, body); | |
1065 | } | |
891be019 SC |
1066 | |
1067 | ; | |
1068 | ||
1069 | /* Things called with "do" */ | |
1070 | termdo : DO term %prec UNIOP /* do $filename */ | |
b5bbe64a | 1071 | { $$ = dofile($2, $1);} |
891be019 | 1072 | | DO block %prec '(' /* do { code */ |
b5bbe64a | 1073 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2));} |
891be019 SC |
1074 | ; |
1075 | ||
1076 | term : termbinop | |
1077 | | termunop | |
1078 | | anonymous | |
1079 | | termdo | |
e9bdcc27 | 1080 | | term '?' term ':' term |
b5bbe64a | 1081 | { $$ = newCONDOP(0, $1, $3, $5); } |
891be019 | 1082 | | REFGEN term /* \$x, \@y, \%z */ |
070d3cb6 | 1083 | { $$ = newUNOP(OP_REFGEN, 0, $2); } |
e118fea3 FC |
1084 | | MY REFGEN term |
1085 | { $$ = newUNOP(OP_REFGEN, 0, localize($3,1)); } | |
09bef843 SB |
1086 | | myattrterm %prec UNIOP |
1087 | { $$ = $1; } | |
1088 | | LOCAL term %prec UNIOP | |
28383d1a | 1089 | { $$ = localize($2,0); } |
a0d0e21e | 1090 | | '(' expr ')' |
b5bbe64a | 1091 | { $$ = sawparens($2); } |
ea25a9b2 | 1092 | | QWLIST |
b5bbe64a | 1093 | { $$ = $1; } |
8d063cd8 | 1094 | | '(' ')' |
b5bbe64a | 1095 | { $$ = sawparens(newNULLLIST()); } |
79072805 | 1096 | | scalar %prec '(' |
8d063cd8 | 1097 | { $$ = $1; } |
79072805 | 1098 | | star %prec '(' |
8d063cd8 | 1099 | { $$ = $1; } |
79072805 | 1100 | | hsh %prec '(' |
8d063cd8 | 1101 | { $$ = $1; } |
79072805 | 1102 | | ary %prec '(' |
8d063cd8 | 1103 | { $$ = $1; } |
891be019 | 1104 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1105 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1106 | | subscripted |
1107 | { $$ = $1; } | |
89f35911 | 1108 | | sliceme '[' expr ']' /* array slice */ |
2fcb4757 | 1109 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1110 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1111 | newLISTOP(OP_ASLICE, 0, |
1112 | list($3), | |
f05e27e5 | 1113 | ref($1, OP_ASLICE))); |
429a2555 FC |
1114 | if ($$ && $1) |
1115 | $$->op_private |= | |
1116 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1117 | } |
76eba8ab | 1118 | | kvslice '[' expr ']' /* array key/value slice */ |
6dd3e0f2 RZ |
1119 | { $$ = op_prepend_elem(OP_KVASLICE, |
1120 | newOP(OP_PUSHMARK, 0), | |
1121 | newLISTOP(OP_KVASLICE, 0, | |
1122 | list($3), | |
1123 | ref(oopsAV($1), OP_KVASLICE))); | |
95a31aad FC |
1124 | if ($$ && $1) |
1125 | $$->op_private |= | |
1126 | $1->op_private & OPpSLICEWARNING; | |
6dd3e0f2 | 1127 | } |
89f35911 | 1128 | | sliceme '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1129 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1130 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1131 | newLISTOP(OP_HSLICE, 0, |
1132 | list($3), | |
a0d0e21e | 1133 | ref(oopsHV($1), OP_HSLICE))); |
429a2555 FC |
1134 | if ($$ && $1) |
1135 | $$->op_private |= | |
1136 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1137 | } |
76eba8ab | 1138 | | kvslice '{' expr ';' '}' /* %hash{@keys} */ |
5cae3edb RZ |
1139 | { $$ = op_prepend_elem(OP_KVHSLICE, |
1140 | newOP(OP_PUSHMARK, 0), | |
1141 | newLISTOP(OP_KVHSLICE, 0, | |
1142 | list($3), | |
1143 | ref($1, OP_KVHSLICE))); | |
95a31aad FC |
1144 | if ($$ && $1) |
1145 | $$->op_private |= | |
1146 | $1->op_private & OPpSLICEWARNING; | |
5cae3edb | 1147 | } |
79072805 LW |
1148 | | THING %prec '(' |
1149 | { $$ = $1; } | |
891be019 | 1150 | | amper /* &foo; */ |
c07a80fd | 1151 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
fb602e32 | 1152 | | amper '(' ')' /* &foo() or foo() */ |
f05e27e5 | 1153 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
f05e27e5 | 1154 | } |
fb602e32 | 1155 | | amper '(' expr ')' /* &foo(@args) or foo(@args) */ |
f05e27e5 DM |
1156 | { |
1157 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1158 | op_append_elem(OP_LIST, $3, scalar($1))); |
f05e27e5 | 1159 | } |
fb602e32 | 1160 | | NOAMP subname optlistexpr /* foo @args (no parens) */ |
a0d0e21e | 1161 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1162 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 | 1163 | } |
89f35911 | 1164 | | term ARROW '$' '*' |
b5bbe64a | 1165 | { $$ = newSVREF($1); } |
89f35911 | 1166 | | term ARROW '@' '*' |
b5bbe64a | 1167 | { $$ = newAVREF($1); } |
89f35911 | 1168 | | term ARROW '%' '*' |
b5bbe64a | 1169 | { $$ = newHVREF($1); } |
89f35911 FC |
1170 | | term ARROW '&' '*' |
1171 | { $$ = newUNOP(OP_ENTERSUB, 0, | |
b5bbe64a | 1172 | scalar(newCVREF($3,$1))); } |
89f35911 | 1173 | | term ARROW '*' '*' %prec '(' |
b5bbe64a | 1174 | { $$ = newGVREF(0,$1); } |
891be019 | 1175 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
b5bbe64a JH |
1176 | { $$ = newOP($1, OPf_SPECIAL); |
1177 | PL_hints |= HINT_BLOCK_SCOPE; } | |
a0d0e21e | 1178 | | LOOPEX term |
b5bbe64a | 1179 | { $$ = newLOOPEX($1,$2); } |
09b1cffe | 1180 | | NOTOP listexpr /* not $foo */ |
b5bbe64a | 1181 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1182 | | UNIOP /* Unary op, $_ implied */ |
b5bbe64a | 1183 | { $$ = newOP($1, 0); } |
f05e27e5 | 1184 | | UNIOP block /* eval { foo }* */ |
b5bbe64a | 1185 | { $$ = newUNOP($1, 0, $2); } |
891be019 | 1186 | | UNIOP term /* Unary op */ |
b5bbe64a | 1187 | { $$ = newUNOP($1, 0, $2); } |
d2fdf8fd | 1188 | | REQUIRE /* require, $_ implied */ |
b5bbe64a | 1189 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); } |
d2fdf8fd | 1190 | | REQUIRE term /* require Foo */ |
b5bbe64a | 1191 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); } |
3cd0a11a RGS |
1192 | | UNIOPSUB |
1193 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1194 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1195 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1196 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1197 | | FUNC0 /* Nullary operator */ |
b5bbe64a | 1198 | { $$ = newOP($1, 0); } |
ae986130 | 1199 | | FUNC0 '(' ')' |
b5bbe64a | 1200 | { $$ = newOP($1, 0);} |
7eb971ee FC |
1201 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1202 | { $$ = $1; } | |
1203 | | FUNC0OP '(' ')' | |
b5bbe64a | 1204 | { $$ = $1; } |
891be019 | 1205 | | FUNC0SUB /* Sub treated as nullop */ |
b5bbe64a | 1206 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
891be019 | 1207 | | FUNC1 '(' ')' /* not () */ |
b5bbe64a JH |
1208 | { $$ = ($1 == OP_NOT) |
1209 | ? newUNOP($1, 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1210 | : newOP($1, OPf_SPECIAL); } | |
891be019 | 1211 | | FUNC1 '(' expr ')' /* not($foo) */ |
b5bbe64a | 1212 | { $$ = newUNOP($1, 0, $3); } |
d63c20f2 DM |
1213 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1214 | { | |
1215 | if ( $1->op_type != OP_TRANS | |
1216 | && $1->op_type != OP_TRANSR | |
1217 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1218 | { | |
1219 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1220 | SAVEFREESV(PL_compcv); | |
1221 | } else | |
1222 | $<ival>$ = 0; | |
1223 | } | |
9b6b7be8 FC |
1224 | '(' listexpr optrepl ')' |
1225 | { $$ = pmruntime($1, $4, $5, 1, $<ival>2); } | |
185c2e96 | 1226 | | BAREWORD |
378cc40b | 1227 | | listop |
88e1f1a2 | 1228 | | PLUGEXPR |
8d063cd8 LW |
1229 | ; |
1230 | ||
891be019 | 1231 | /* "my" declarations, with optional attributes */ |
09bef843 | 1232 | myattrterm: MY myterm myattrlist |
b5bbe64a | 1233 | { $$ = my_attrs($2,$3); } |
09bef843 | 1234 | | MY myterm |
28383d1a | 1235 | { $$ = localize($2,1); } |
e118fea3 FC |
1236 | | MY REFGEN myterm myattrlist |
1237 | { $$ = newUNOP(OP_REFGEN, 0, my_attrs($3,$4)); } | |
09bef843 SB |
1238 | ; |
1239 | ||
891be019 | 1240 | /* Things that can be "my"'d */ |
09bef843 | 1241 | myterm : '(' expr ')' |
b5bbe64a | 1242 | { $$ = sawparens($2); } |
09bef843 | 1243 | | '(' ')' |
b5bbe64a JH |
1244 | { $$ = sawparens(newNULLLIST()); } |
1245 | ||
09bef843 SB |
1246 | | scalar %prec '(' |
1247 | { $$ = $1; } | |
1248 | | hsh %prec '(' | |
1249 | { $$ = $1; } | |
1250 | | ary %prec '(' | |
1251 | { $$ = $1; } | |
1252 | ; | |
1253 | ||
891be019 | 1254 | /* Basic list expressions */ |
09b1cffe | 1255 | optlistexpr: /* NULL */ %prec PREC_LOW |
a9f5ab8d | 1256 | { $$ = NULL; } |
09b1cffe | 1257 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1258 | { $$ = $1; } |
1259 | ; | |
1260 | ||
09b1cffe | 1261 | optexpr: /* NULL */ |
a9f5ab8d | 1262 | { $$ = NULL; } |
79072805 LW |
1263 | | expr |
1264 | { $$ = $1; } | |
1265 | ; | |
1266 | ||
9b6b7be8 | 1267 | optrepl: /* NULL */ |
a9f5ab8d | 1268 | { $$ = NULL; } |
9b6b7be8 FC |
1269 | | '/' expr |
1270 | { $$ = $2; } | |
1271 | ; | |
1272 | ||
891be019 SC |
1273 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1274 | lexical */ | |
55497cff | 1275 | my_scalar: scalar |
624fa8bd | 1276 | { parser->in_my = 0; $$ = my($1); } |
55497cff | 1277 | ; |
1278 | ||
d39c26a6 FC |
1279 | my_var : scalar |
1280 | | ary | |
1281 | | hsh | |
1282 | ; | |
1283 | ||
1284 | refgen_topic: my_var | |
1285 | | amper | |
1286 | ; | |
1287 | ||
e118fea3 FC |
1288 | my_refgen: MY REFGEN |
1289 | | REFGEN MY | |
1290 | ; | |
1291 | ||
79072805 | 1292 | amper : '&' indirob |
b5bbe64a | 1293 | { $$ = newCVREF($1,$2); } |
a687059c LW |
1294 | ; |
1295 | ||
79072805 | 1296 | scalar : '$' indirob |
b5bbe64a | 1297 | { $$ = newSVREF($2); } |
a687059c LW |
1298 | ; |
1299 | ||
79072805 | 1300 | ary : '@' indirob |
f05e27e5 | 1301 | { $$ = newAVREF($2); |
b5bbe64a | 1302 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1303 | } |
79072805 LW |
1304 | ; |
1305 | ||
1306 | hsh : '%' indirob | |
f05e27e5 | 1307 | { $$ = newHVREF($2); |
b5bbe64a | 1308 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1309 | } |
79072805 LW |
1310 | ; |
1311 | ||
1312 | arylen : DOLSHARP indirob | |
b5bbe64a | 1313 | { $$ = newAVREF($2); } |
ff25e5db | 1314 | | term ARROW DOLSHARP '*' |
b5bbe64a | 1315 | { $$ = newAVREF($1); } |
79072805 LW |
1316 | ; |
1317 | ||
1318 | star : '*' indirob | |
b5bbe64a | 1319 | { $$ = newGVREF(0,$2); } |
79072805 LW |
1320 | ; |
1321 | ||
89f35911 FC |
1322 | sliceme : ary |
1323 | | term ARROW '@' | |
b5bbe64a | 1324 | { $$ = newAVREF($1); } |
89f35911 FC |
1325 | ; |
1326 | ||
76eba8ab FC |
1327 | kvslice : hsh |
1328 | | term ARROW '%' | |
b5bbe64a | 1329 | { $$ = newHVREF($1); } |
76eba8ab FC |
1330 | ; |
1331 | ||
89f35911 FC |
1332 | gelem : star |
1333 | | term ARROW '*' | |
b5bbe64a | 1334 | { $$ = newGVREF(0,$1); } |
89f35911 FC |
1335 | ; |
1336 | ||
891be019 | 1337 | /* Indirect objects */ |
185c2e96 | 1338 | indirob : BAREWORD |
79072805 | 1339 | { $$ = scalar($1); } |
fad39ff1 | 1340 | | scalar %prec PREC_LOW |
f05e27e5 | 1341 | { $$ = scalar($1); } |
79072805 | 1342 | | block |
3ad73efd | 1343 | { $$ = op_scope($1); } |
79072805 | 1344 | |
93a17b20 LW |
1345 | | PRIVATEREF |
1346 | { $$ = $1; } | |
8d063cd8 | 1347 | ; |