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 | ||
996b0cb8 | 46 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ GRAMSUBSIGNATURE |
28ac2b49 | 47 | |
f10ebf6c | 48 | %token <ival> '{' '}' '[' ']' '-' '+' '@' '%' '&' '=' '.' |
f0fcb552 | 49 | |
185c2e96 | 50 | %token <opval> BAREWORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
7eb971ee | 51 | %token <opval> FUNC0OP FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 52 | %token <opval> PLUGEXPR PLUGSTMT |
01719201 | 53 | %token <opval> LABEL |
436ddf68 | 54 | %token <ival> FORMAT SUB SIGSUB ANONSUB ANON_SIGSUB PACKAGE USE |
b5bbe64a | 55 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
7896dde7 | 56 | %token <ival> GIVEN WHEN DEFAULT |
b5bbe64a JH |
57 | %token <ival> LOOPEX DOTDOT YADAYADA |
58 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP | |
59 | %token <ival> RELOP EQOP MULOP ADDOP | |
60 | %token <ival> DOLSHARP DO HASHBRACK NOAMP | |
61 | %token <ival> LOCAL MY REQUIRE | |
62 | %token <ival> COLONATTR FORMLBRACK FORMRBRACK | |
69afcc21 | 63 | %token <ival> SUBLEXSTART SUBLEXEND |
f05e27e5 | 64 | |
727a8fe5 | 65 | %type <ival> grammar remember mremember |
f05e27e5 | 66 | %type <ival> startsub startanonsub startformsub |
b5bbe64a | 67 | |
b5a64814 | 68 | %type <ival> mintro |
f05e27e5 | 69 | |
8e720305 | 70 | %type <opval> stmtseq fullstmt labfullstmt barestmt block mblock else |
fad39ff1 | 71 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
76eba8ab | 72 | %type <opval> sliceme kvslice gelem |
08b3e84f | 73 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr |
9b6b7be8 | 74 | %type <opval> optlistexpr optexpr optrepl indirob listop method |
75230cc1 | 75 | %type <opval> formname subname proto cont my_scalar my_var |
d39c26a6 | 76 | %type <opval> refgen_topic formblock |
f05e27e5 | 77 | %type <opval> subattrlist myattrlist myattrterm myterm |
75230cc1 | 78 | %type <opval> termbinop termunop anonymous termdo |
d3d9da4a DM |
79 | %type <ival> sigslurpsigil |
80 | %type <opval> sigvarname sigdefault sigscalarelem sigslurpelem | |
996b0cb8 | 81 | %type <opval> sigelem siglist siglistornull subsigguts subsignature optsubsignature |
75230cc1 | 82 | %type <opval> subbody optsubbody sigsubbody optsigsubbody |
705fe0e5 | 83 | %type <opval> formstmtseq formline formarg |
79072805 | 84 | |
b5bbe64a | 85 | %nonassoc <ival> PREC_LOW |
fad39ff1 SM |
86 | %nonassoc LOOPEX |
87 | ||
b5bbe64a JH |
88 | %left <ival> OROP DOROP |
89 | %left <ival> ANDOP | |
90 | %right <ival> NOTOP | |
36477c24 | 91 | %nonassoc LSTOP LSTOPSUB |
b5bbe64a JH |
92 | %left <ival> ',' |
93 | %right <ival> ASSIGNOP | |
94 | %right <ival> '?' ':' | |
29d69c3c | 95 | %nonassoc DOTDOT |
b5bbe64a JH |
96 | %left <ival> OROR DORDOR |
97 | %left <ival> ANDAND | |
98 | %left <ival> BITOROP | |
99 | %left <ival> BITANDOP | |
a687059c LW |
100 | %nonassoc EQOP |
101 | %nonassoc RELOP | |
36477c24 | 102 | %nonassoc UNIOP UNIOPSUB |
20515881 | 103 | %nonassoc REQUIRE |
b5bbe64a | 104 | %left <ival> SHIFTOP |
a687059c LW |
105 | %left ADDOP |
106 | %left MULOP | |
b5bbe64a JH |
107 | %left <ival> MATCHOP |
108 | %right <ival> '!' '~' UMINUS REFGEN | |
109 | %right <ival> POWOP | |
110 | %nonassoc <ival> PREINC PREDEC POSTINC POSTDEC POSTJOIN | |
111 | %left <ival> ARROW | |
112 | %nonassoc <ival> ')' | |
113 | %left <ival> '(' | |
fad39ff1 | 114 | %left '[' '{' |
8d063cd8 LW |
115 | |
116 | %% /* RULES */ | |
117 | ||
28ac2b49 | 118 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
119 | grammar : GRAMPROG |
120 | { | |
624fa8bd | 121 | parser->expect = XSTATE; |
5a2060e2 | 122 | $<ival>$ = 0; |
727a8fe5 Z |
123 | } |
124 | remember stmtseq | |
125 | { | |
126 | newPROG(block_end($3,$4)); | |
8635e3c2 | 127 | PL_compiling.cop_seq = 0; |
727a8fe5 Z |
128 | $$ = 0; |
129 | } | |
78cdf107 Z |
130 | | GRAMEXPR |
131 | { | |
132 | parser->expect = XTERM; | |
5a2060e2 | 133 | $<ival>$ = 0; |
78cdf107 | 134 | } |
09b1cffe | 135 | optexpr |
78cdf107 Z |
136 | { |
137 | PL_eval_root = $3; | |
138 | $$ = 0; | |
139 | } | |
e53d8f76 Z |
140 | | GRAMBLOCK |
141 | { | |
142 | parser->expect = XBLOCK; | |
5a2060e2 | 143 | $<ival>$ = 0; |
e53d8f76 Z |
144 | } |
145 | block | |
146 | { | |
5f211341 | 147 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
148 | PL_eval_root = $3; |
149 | $$ = 0; | |
150 | yyunlex(); | |
0f8490d1 | 151 | parser->yychar = yytoken = YYEOF; |
8359b381 Z |
152 | } |
153 | | GRAMBARESTMT | |
154 | { | |
155 | parser->expect = XSTATE; | |
5a2060e2 | 156 | $<ival>$ = 0; |
8359b381 Z |
157 | } |
158 | barestmt | |
159 | { | |
160 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
161 | PL_eval_root = $3; |
162 | $$ = 0; | |
163 | yyunlex(); | |
0f8490d1 | 164 | parser->yychar = yytoken = YYEOF; |
e53d8f76 | 165 | } |
9eb5c532 | 166 | | GRAMFULLSTMT |
28ac2b49 | 167 | { |
9eb5c532 | 168 | parser->expect = XSTATE; |
5a2060e2 | 169 | $<ival>$ = 0; |
9eb5c532 Z |
170 | } |
171 | fullstmt | |
172 | { | |
5f211341 | 173 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 174 | PL_eval_root = $3; |
28ac2b49 Z |
175 | $$ = 0; |
176 | yyunlex(); | |
0f8490d1 | 177 | parser->yychar = yytoken = YYEOF; |
28ac2b49 | 178 | } |
07ffcb73 Z |
179 | | GRAMSTMTSEQ |
180 | { | |
181 | parser->expect = XSTATE; | |
5a2060e2 | 182 | $<ival>$ = 0; |
07ffcb73 | 183 | } |
5f211341 | 184 | stmtseq |
07ffcb73 Z |
185 | { |
186 | PL_eval_root = $3; | |
187 | $$ = 0; | |
188 | } | |
996b0cb8 PE |
189 | | GRAMSUBSIGNATURE |
190 | { | |
191 | parser->expect = XSTATE; | |
192 | $<ival>$ = 0; | |
193 | } | |
194 | subsigguts | |
195 | { | |
196 | PL_eval_root = $3; | |
197 | $$ = 0; | |
198 | } | |
07ffcb73 Z |
199 | ; |
200 | ||
891be019 | 201 | /* An ordinary block */ |
5f211341 | 202 | block : '{' remember stmtseq '}' |
624fa8bd FC |
203 | { if (parser->copline > (line_t)$1) |
204 | parser->copline = (line_t)$1; | |
f05e27e5 | 205 | $$ = block_end($2, $3); |
f05e27e5 | 206 | } |
a0d0e21e LW |
207 | ; |
208 | ||
7c70caa5 | 209 | /* format body */ |
705fe0e5 | 210 | formblock: '=' remember ';' FORMRBRACK formstmtseq ';' '.' |
624fa8bd FC |
211 | { if (parser->copline > (line_t)$1) |
212 | parser->copline = (line_t)$1; | |
705fe0e5 | 213 | $$ = block_end($2, $5); |
7c70caa5 FC |
214 | } |
215 | ; | |
216 | ||
55497cff | 217 | remember: /* NULL */ /* start a full lexical scope */ |
34b54951 FC |
218 | { $$ = block_start(TRUE); |
219 | parser->parsed_sub = 0; } | |
55497cff | 220 | ; |
221 | ||
5f211341 | 222 | mblock : '{' mremember stmtseq '}' |
624fa8bd FC |
223 | { if (parser->copline > (line_t)$1) |
224 | parser->copline = (line_t)$1; | |
f05e27e5 | 225 | $$ = block_end($2, $3); |
f05e27e5 | 226 | } |
55497cff | 227 | ; |
228 | ||
229 | mremember: /* NULL */ /* start a partial lexical scope */ | |
34b54951 FC |
230 | { $$ = block_start(FALSE); |
231 | parser->parsed_sub = 0; } | |
8d063cd8 LW |
232 | ; |
233 | ||
eae48c89 | 234 | /* A sequence of statements in the program */ |
5f211341 | 235 | stmtseq : /* NULL */ |
a9f5ab8d | 236 | { $$ = NULL; } |
5f211341 | 237 | | stmtseq fullstmt |
2fcb4757 | 238 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 239 | PL_pad_reset_pending = TRUE; |
503de470 DM |
240 | if ($1 && $2) |
241 | PL_hints |= HINT_BLOCK_SCOPE; | |
242 | } | |
8d063cd8 LW |
243 | ; |
244 | ||
705fe0e5 FC |
245 | /* A sequence of format lines */ |
246 | formstmtseq: /* NULL */ | |
a9f5ab8d | 247 | { $$ = NULL; } |
705fe0e5 FC |
248 | | formstmtseq formline |
249 | { $$ = op_append_list(OP_LINESEQ, $1, $2); | |
250 | PL_pad_reset_pending = TRUE; | |
251 | if ($1 && $2) | |
252 | PL_hints |= HINT_BLOCK_SCOPE; | |
253 | } | |
254 | ; | |
255 | ||
8e720305 Z |
256 | /* A statement in the program, including optional labels */ |
257 | fullstmt: barestmt | |
eae48c89 | 258 | { |
b5bbe64a | 259 | $$ = $1 ? newSTATEOP(0, NULL, $1) : NULL; |
eae48c89 | 260 | } |
8e720305 Z |
261 | | labfullstmt |
262 | { $$ = $1; } | |
263 | ; | |
264 | ||
265 | labfullstmt: LABEL barestmt | |
266 | { | |
01719201 DM |
267 | SV *label = cSVOPx_sv($1); |
268 | $$ = newSTATEOP(SvFLAGS(label) & SVf_UTF8, | |
269 | savepv(SvPVX_const(label)), $2); | |
270 | op_free($1); | |
8e720305 Z |
271 | } |
272 | | LABEL labfullstmt | |
273 | { | |
01719201 DM |
274 | SV *label = cSVOPx_sv($1); |
275 | $$ = newSTATEOP(SvFLAGS(label) & SVf_UTF8, | |
276 | savepv(SvPVX_const(label)), $2); | |
277 | op_free($1); | |
8e720305 | 278 | } |
eae48c89 Z |
279 | ; |
280 | ||
281 | /* A bare statement, lacking label and other aspects of state op */ | |
282 | barestmt: PLUGSTMT | |
0d863452 | 283 | { $$ = $1; } |
7c70caa5 | 284 | | FORMAT startformsub formname formblock |
f05e27e5 | 285 | { |
eae48c89 | 286 | CV *fmtcv = PL_compcv; |
eae48c89 | 287 | newFORM($2, $3, $4); |
a9f5ab8d | 288 | $$ = NULL; |
4a273b91 | 289 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
74a9453a | 290 | pad_add_weakref(fmtcv); |
f05e27e5 | 291 | } |
8b9fb2f9 | 292 | parser->parsed_sub = 1; |
eae48c89 | 293 | } |
50278755 | 294 | | SUB subname startsub |
75230cc1 DM |
295 | /* sub declaration or definition not within scope |
296 | of 'use feature "signatures"'*/ | |
50278755 | 297 | { |
50333c97 | 298 | init_named_cv(PL_compcv, $2); |
624fa8bd FC |
299 | parser->in_my = 0; |
300 | parser->in_my_stash = NULL; | |
764212cf | 301 | } |
75230cc1 | 302 | proto subattrlist optsubbody |
eae48c89 Z |
303 | { |
304 | SvREFCNT_inc_simple_void(PL_compcv); | |
50278755 FC |
305 | $2->op_type == OP_CONST |
306 | ? newATTRSUB($3, $2, $5, $6, $7) | |
307 | : newMYSUB($3, $2, $5, $6, $7) | |
50278755 | 308 | ; |
a9f5ab8d | 309 | $$ = NULL; |
764212cf | 310 | intro_my(); |
34b54951 | 311 | parser->parsed_sub = 1; |
f05e27e5 | 312 | } |
436ddf68 | 313 | | SIGSUB subname startsub |
75230cc1 DM |
314 | /* sub declaration or definition under 'use feature |
315 | * "signatures"'. (Note that a signature isn't | |
316 | * allowed in a declaration) | |
317 | */ | |
436ddf68 DM |
318 | { |
319 | init_named_cv(PL_compcv, $2); | |
320 | parser->in_my = 0; | |
321 | parser->in_my_stash = NULL; | |
322 | } | |
75230cc1 | 323 | subattrlist optsigsubbody |
436ddf68 DM |
324 | { |
325 | SvREFCNT_inc_simple_void(PL_compcv); | |
326 | $2->op_type == OP_CONST | |
75230cc1 DM |
327 | ? newATTRSUB($3, $2, NULL, $5, $6) |
328 | : newMYSUB( $3, $2, NULL, $5, $6) | |
436ddf68 DM |
329 | ; |
330 | $$ = NULL; | |
331 | intro_my(); | |
332 | parser->parsed_sub = 1; | |
333 | } | |
185c2e96 | 334 | | PACKAGE BAREWORD BAREWORD ';' |
5f211341 | 335 | { |
eae48c89 Z |
336 | package($3); |
337 | if ($2) | |
338 | package_version($2); | |
a9f5ab8d | 339 | $$ = NULL; |
eae48c89 Z |
340 | } |
341 | | USE startsub | |
342 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
185c2e96 | 343 | BAREWORD BAREWORD optlistexpr ';' |
eae48c89 Z |
344 | { |
345 | SvREFCNT_inc_simple_void(PL_compcv); | |
b5bbe64a | 346 | utilize($1, $2, $4, $5, $6); |
34b54951 | 347 | parser->parsed_sub = 1; |
a9f5ab8d | 348 | $$ = NULL; |
eae48c89 | 349 | } |
417a992d | 350 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 351 | { |
3ad73efd Z |
352 | $$ = block_end($3, |
353 | newCONDOP(0, $4, op_scope($6), $7)); | |
624fa8bd | 354 | parser->copline = (line_t)$1; |
eae48c89 | 355 | } |
08b3e84f | 356 | | UNLESS '(' remember mexpr ')' mblock else |
eae48c89 | 357 | { |
3ad73efd | 358 | $$ = block_end($3, |
08b3e84f | 359 | newCONDOP(0, $4, $7, op_scope($6))); |
624fa8bd | 360 | parser->copline = (line_t)$1; |
eae48c89 | 361 | } |
b5a64814 | 362 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 363 | { |
5d051ee0 | 364 | $$ = block_end($3, newGIVENOP($4, op_scope($6), 0)); |
624fa8bd | 365 | parser->copline = (line_t)$1; |
eae48c89 | 366 | } |
7896dde7 Z |
367 | | WHEN '(' remember mexpr ')' mblock |
368 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } | |
369 | | DEFAULT block | |
370 | { $$ = newWHENOP(0, op_scope($2)); } | |
417a992d | 371 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
372 | { |
373 | $$ = block_end($3, | |
a9f5ab8d | 374 | newWHILEOP(0, 1, NULL, |
94bf0465 | 375 | $4, $7, $8, $6)); |
624fa8bd | 376 | parser->copline = (line_t)$1; |
eae48c89 | 377 | } |
417a992d | 378 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
379 | { |
380 | $$ = block_end($3, | |
a9f5ab8d | 381 | newWHILEOP(0, 1, NULL, |
94bf0465 | 382 | $4, $7, $8, $6)); |
624fa8bd | 383 | parser->copline = (line_t)$1; |
eae48c89 | 384 | } |
2d0e3c96 FC |
385 | | FOR '(' remember mnexpr ';' |
386 | { parser->expect = XTERM; } | |
387 | texpr ';' | |
388 | { parser->expect = XTERM; } | |
389 | mintro mnexpr ')' | |
eae48c89 Z |
390 | mblock |
391 | { | |
b5bbe64a | 392 | OP *initop = $4; |
a9f5ab8d | 393 | OP *forop = newWHILEOP(0, 1, NULL, |
2d0e3c96 | 394 | scalar($7), $13, $11, $10); |
eae48c89 Z |
395 | if (initop) { |
396 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
397 | op_append_elem(OP_LINESEQ, | |
398 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
399 | forop)); | |
5f211341 | 400 | } |
0f602692 | 401 | PL_hints |= HINT_BLOCK_SCOPE; |
eae48c89 | 402 | $$ = block_end($3, forop); |
624fa8bd | 403 | parser->copline = (line_t)$1; |
eae48c89 | 404 | } |
417a992d | 405 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 406 | { |
94bf0465 | 407 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
624fa8bd | 408 | parser->copline = (line_t)$1; |
eae48c89 | 409 | } |
417a992d | 410 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 411 | { |
94bf0465 | 412 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 413 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
624fa8bd | 414 | parser->copline = (line_t)$1; |
eae48c89 | 415 | } |
e118fea3 FC |
416 | | FOR my_refgen remember my_var |
417 | { parser->in_my = 0; $<opval>$ = my($4); } | |
d39c26a6 FC |
418 | '(' mexpr ')' mblock cont |
419 | { | |
420 | $$ = block_end( | |
e118fea3 | 421 | $3, |
d39c26a6 FC |
422 | newFOROP(0, |
423 | op_lvalue( | |
424 | newUNOP(OP_REFGEN, 0, | |
e118fea3 | 425 | $<opval>5), |
d39c26a6 | 426 | OP_ENTERLOOP), |
e118fea3 | 427 | $7, $9, $10) |
d39c26a6 FC |
428 | ); |
429 | parser->copline = (line_t)$1; | |
430 | } | |
431 | | FOR REFGEN refgen_topic '(' remember mexpr ')' mblock cont | |
432 | { | |
433 | $$ = block_end($5, newFOROP( | |
434 | 0, op_lvalue(newUNOP(OP_REFGEN, 0, | |
96801525 | 435 | $3), |
d39c26a6 FC |
436 | OP_ENTERLOOP), $6, $8, $9)); |
437 | parser->copline = (line_t)$1; | |
438 | } | |
417a992d | 439 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
440 | { |
441 | $$ = block_end($3, | |
a9f5ab8d | 442 | newFOROP(0, NULL, $4, $6, $7)); |
624fa8bd | 443 | parser->copline = (line_t)$1; |
eae48c89 Z |
444 | } |
445 | | block cont | |
446 | { | |
447 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
448 | $$ = newWHILEOP(0, 1, NULL, |
449 | NULL, $1, $2, 0); | |
eae48c89 | 450 | } |
185c2e96 | 451 | | PACKAGE BAREWORD BAREWORD '{' remember |
eae48c89 | 452 | { |
eae48c89 | 453 | package($3); |
eae48c89 | 454 | if ($2) { |
eae48c89 | 455 | package_version($2); |
eae48c89 Z |
456 | } |
457 | } | |
458 | stmtseq '}' | |
459 | { | |
460 | /* a block is a loop that happens once */ | |
a9f5ab8d LM |
461 | $$ = newWHILEOP(0, 1, NULL, |
462 | NULL, block_end($5, $7), NULL, 0); | |
624fa8bd FC |
463 | if (parser->copline > (line_t)$4) |
464 | parser->copline = (line_t)$4; | |
eae48c89 Z |
465 | } |
466 | | sideff ';' | |
467 | { | |
eae48c89 | 468 | $$ = $1; |
eae48c89 | 469 | } |
29d69c3c Z |
470 | | YADAYADA ';' |
471 | { | |
472 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
473 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
474 | } | |
eae48c89 Z |
475 | | ';' |
476 | { | |
a9f5ab8d | 477 | $$ = NULL; |
624fa8bd | 478 | parser->copline = NOLINE; |
5f211341 | 479 | } |
8d063cd8 LW |
480 | ; |
481 | ||
705fe0e5 FC |
482 | /* Format line */ |
483 | formline: THING formarg | |
484 | { OP *list; | |
485 | if ($2) { | |
486 | OP *term = $2; | |
705fe0e5 FC |
487 | list = op_append_elem(OP_LIST, $1, term); |
488 | } | |
489 | else { | |
705fe0e5 | 490 | list = $1; |
705fe0e5 | 491 | } |
624fa8bd FC |
492 | if (parser->copline == NOLINE) |
493 | parser->copline = CopLINE(PL_curcop)-1; | |
494 | else parser->copline--; | |
705fe0e5 | 495 | $$ = newSTATEOP(0, NULL, |
03d05f6e | 496 | op_convert_list(OP_FORMLINE, 0, list)); |
705fe0e5 FC |
497 | } |
498 | ; | |
499 | ||
500 | formarg : /* NULL */ | |
501 | { $$ = NULL; } | |
502 | | FORMLBRACK stmtseq FORMRBRACK | |
503 | { $$ = op_unscope($2); } | |
504 | ; | |
505 | ||
891be019 | 506 | /* An expression which may have a side-effect */ |
a687059c | 507 | sideff : error |
a9f5ab8d | 508 | { $$ = NULL; } |
a687059c | 509 | | expr |
79072805 | 510 | { $$ = $1; } |
a687059c | 511 | | expr IF expr |
b5bbe64a | 512 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 513 | | expr UNLESS expr |
b5bbe64a | 514 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 515 | | expr WHILE expr |
b5bbe64a | 516 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 517 | | expr UNTIL iexpr |
b5bbe64a | 518 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); } |
ecca16b0 | 519 | | expr FOR expr |
a9f5ab8d | 520 | { $$ = newFOROP(0, NULL, $3, $1, NULL); |
624fa8bd | 521 | parser->copline = (line_t)$2; } |
7896dde7 Z |
522 | | expr WHEN expr |
523 | { $$ = newWHENOP($3, op_scope($1)); } | |
79072805 LW |
524 | ; |
525 | ||
891be019 | 526 | /* else and elsif blocks */ |
79072805 | 527 | else : /* NULL */ |
a9f5ab8d | 528 | { $$ = NULL; } |
55497cff | 529 | | ELSE mblock |
3ad73efd Z |
530 | { |
531 | ($2)->op_flags |= OPf_PARENS; | |
532 | $$ = op_scope($2); | |
f05e27e5 | 533 | } |
417a992d | 534 | | ELSIF '(' mexpr ')' mblock else |
624fa8bd | 535 | { parser->copline = (line_t)$1; |
3ad73efd Z |
536 | $$ = newCONDOP(0, |
537 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
538 | op_scope($5), $6); | |
539 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 | 540 | } |
79072805 LW |
541 | ; |
542 | ||
891be019 | 543 | /* Continue blocks */ |
79072805 | 544 | cont : /* NULL */ |
a9f5ab8d | 545 | { $$ = NULL; } |
79072805 | 546 | | CONTINUE block |
b5bbe64a | 547 | { $$ = op_scope($2); } |
79072805 LW |
548 | ; |
549 | ||
a034e688 DM |
550 | /* determine whether there are any new my declarations */ |
551 | mintro : /* NULL */ | |
552 | { $$ = (PL_min_intro_pending && | |
553 | PL_max_intro_pending >= PL_min_intro_pending); | |
554 | intro_my(); } | |
555 | ||
891be019 | 556 | /* Normal expression */ |
8d063cd8 | 557 | nexpr : /* NULL */ |
a9f5ab8d | 558 | { $$ = NULL; } |
8d063cd8 LW |
559 | | sideff |
560 | ; | |
561 | ||
891be019 | 562 | /* Boolean expression */ |
8d063cd8 | 563 | texpr : /* NULL means true */ |
f05e27e5 DM |
564 | { YYSTYPE tmplval; |
565 | (void)scan_num("1", &tmplval); | |
566 | $$ = tmplval.opval; } | |
8d063cd8 LW |
567 | | expr |
568 | ; | |
569 | ||
891be019 | 570 | /* Inverted boolean expression */ |
55497cff | 571 | iexpr : expr |
572 | { $$ = invert(scalar($1)); } | |
573 | ; | |
574 | ||
891be019 | 575 | /* Expression with its own lexical scope */ |
55497cff | 576 | mexpr : expr |
bbce6d69 | 577 | { $$ = $1; intro_my(); } |
578 | ; | |
579 | ||
580 | mnexpr : nexpr | |
581 | { $$ = $1; intro_my(); } | |
55497cff | 582 | ; |
583 | ||
185c2e96 | 584 | formname: BAREWORD { $$ = $1; } |
a9f5ab8d | 585 | | /* NULL */ { $$ = NULL; } |
8d063cd8 LW |
586 | ; |
587 | ||
fa83b5b6 | 588 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
589 | { $$ = start_subparse(FALSE, 0); |
590 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 591 | |
28757baa | 592 | ; |
593 | ||
594 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
595 | { $$ = start_subparse(FALSE, CVf_ANON); |
596 | SAVEFREESV(PL_compcv); } | |
28757baa | 597 | ; |
598 | ||
44a8e56a | 599 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
600 | { $$ = start_subparse(TRUE, 0); |
601 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 602 | ; |
603 | ||
891be019 | 604 | /* Name of a subroutine - must be a bareword, could be special */ |
185c2e96 | 605 | subname : BAREWORD |
4210d3f1 | 606 | | PRIVATEREF |
a0d0e21e LW |
607 | ; |
608 | ||
891be019 | 609 | /* Subroutine prototype */ |
4633a7c4 | 610 | proto : /* NULL */ |
a9f5ab8d | 611 | { $$ = NULL; } |
4633a7c4 LW |
612 | | THING |
613 | ; | |
28757baa | 614 | |
891be019 | 615 | /* Optional list of subroutine attributes */ |
09bef843 | 616 | subattrlist: /* NULL */ |
a9f5ab8d | 617 | { $$ = NULL; } |
09bef843 | 618 | | COLONATTR THING |
b5bbe64a | 619 | { $$ = $2; } |
09bef843 | 620 | | COLONATTR |
a9f5ab8d | 621 | { $$ = NULL; } |
09bef843 SB |
622 | ; |
623 | ||
891be019 | 624 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 625 | myattrlist: COLONATTR THING |
b5bbe64a | 626 | { $$ = $2; } |
09bef843 | 627 | | COLONATTR |
a9f5ab8d | 628 | { $$ = NULL; } |
09bef843 SB |
629 | ; |
630 | ||
abcf453d | 631 | |
d3d9da4a DM |
632 | |
633 | /* -------------------------------------- | |
634 | * subroutine signature parsing | |
635 | */ | |
636 | ||
637 | /* the '' or 'foo' part of a '$' or '@foo' etc signature variable */ | |
49fb8620 | 638 | sigvarname: /* NULL */ |
a9f5ab8d | 639 | { parser->in_my = 0; $$ = NULL; } |
d3d9da4a | 640 | | PRIVATEREF |
49fb8620 | 641 | { parser->in_my = 0; $$ = $1; } |
d3d9da4a DM |
642 | ; |
643 | ||
644 | sigslurpsigil: | |
645 | '@' | |
646 | { $$ = '@'; } | |
647 | | '%' | |
648 | { $$ = '%'; } | |
649 | ||
650 | /* @, %, @foo, %foo */ | |
651 | sigslurpelem: sigslurpsigil sigvarname sigdefault/* def only to catch errors */ | |
652 | { | |
4fa06845 DM |
653 | I32 sigil = $1; |
654 | OP *var = $2; | |
d3d9da4a | 655 | OP *defexpr = $3; |
d3d9da4a | 656 | |
036bbc13 | 657 | if (parser->sig_slurpy) |
d3d9da4a | 658 | yyerror("Multiple slurpy parameters not allowed"); |
036bbc13 | 659 | parser->sig_slurpy = (char)sigil; |
d3d9da4a DM |
660 | |
661 | if (defexpr) | |
bb6b75cd | 662 | yyerror("A slurpy parameter may not have " |
d3d9da4a DM |
663 | "a default value"); |
664 | ||
a9f5ab8d | 665 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
666 | } |
667 | ; | |
668 | ||
669 | /* default part of sub signature scalar element: i.e. '= default_expr' */ | |
670 | sigdefault: /* NULL */ | |
a9f5ab8d | 671 | { $$ = NULL; } |
d3d9da4a DM |
672 | | ASSIGNOP |
673 | { $$ = newOP(OP_NULL, 0); } | |
674 | | ASSIGNOP term | |
675 | { $$ = $2; } | |
676 | ||
677 | ||
678 | /* subroutine signature scalar element: e.g. '$x', '$=', '$x = $default' */ | |
679 | sigscalarelem: | |
680 | '$' sigvarname sigdefault | |
681 | { | |
682 | OP *var = $2; | |
683 | OP *defexpr = $3; | |
d3d9da4a | 684 | |
036bbc13 | 685 | if (parser->sig_slurpy) |
d3d9da4a DM |
686 | yyerror("Slurpy parameter not last"); |
687 | ||
036bbc13 | 688 | parser->sig_elems++; |
d3d9da4a | 689 | |
d3d9da4a | 690 | if (defexpr) { |
036bbc13 | 691 | parser->sig_optelems++; |
4fa06845 DM |
692 | |
693 | if ( defexpr->op_type == OP_NULL | |
d3d9da4a DM |
694 | && !(defexpr->op_flags & OPf_KIDS)) |
695 | { | |
4fa06845 DM |
696 | /* handle '$=' special case */ |
697 | if (var) | |
698 | yyerror("Optional parameter " | |
699 | "lacks default expression"); | |
d3d9da4a DM |
700 | op_free(defexpr); |
701 | } | |
4fa06845 DM |
702 | else { |
703 | /* a normal '=default' expression */ | |
704 | OP *defop = (OP*)alloc_LOGOP(OP_ARGDEFELEM, | |
705 | defexpr, | |
706 | LINKLIST(defexpr)); | |
707 | /* re-purpose op_targ to hold @_ index */ | |
6daeaaa3 | 708 | defop->op_targ = |
036bbc13 | 709 | (PADOFFSET)(parser->sig_elems - 1); |
4fa06845 DM |
710 | |
711 | if (var) { | |
712 | var->op_flags |= OPf_STACKED; | |
713 | (void)op_sibling_splice(var, | |
714 | NULL, 0, defop); | |
715 | scalar(defop); | |
716 | } | |
717 | else | |
718 | var = newUNOP(OP_NULL, 0, defop); | |
719 | ||
720 | LINKLIST(var); | |
721 | /* NB: normally the first child of a | |
722 | * logop is executed before the logop, | |
723 | * and it pushes a boolean result | |
724 | * ready for the logop. For ARGDEFELEM, | |
725 | * the op itself does the boolean | |
726 | * calculation, so set the first op to | |
727 | * it instead. | |
728 | */ | |
729 | var->op_next = defop; | |
730 | defexpr->op_next = var; | |
d3d9da4a DM |
731 | } |
732 | } | |
733 | else { | |
036bbc13 | 734 | if (parser->sig_optelems) |
d3d9da4a DM |
735 | yyerror("Mandatory parameter " |
736 | "follows optional parameter"); | |
d3d9da4a DM |
737 | } |
738 | ||
a9f5ab8d | 739 | $$ = var ? newSTATEOP(0, NULL, var) : NULL; |
d3d9da4a DM |
740 | } |
741 | ; | |
742 | ||
743 | ||
744 | /* subroutine signature element: e.g. '$x = $default' or '%h' */ | |
745 | sigelem: sigscalarelem | |
49fb8620 | 746 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a | 747 | | sigslurpelem |
49fb8620 | 748 | { parser->in_my = KEY_sigvar; $$ = $1; } |
d3d9da4a DM |
749 | ; |
750 | ||
751 | /* list of subroutine signature elements */ | |
752 | siglist: | |
753 | siglist ',' | |
754 | { $$ = $1; } | |
755 | | siglist ',' sigelem | |
30d9c59b | 756 | { |
d3d9da4a | 757 | $$ = op_append_list(OP_LINESEQ, $1, $3); |
30d9c59b | 758 | } |
d3d9da4a DM |
759 | | sigelem %prec PREC_LOW |
760 | { $$ = $1; } | |
30d9c59b Z |
761 | ; |
762 | ||
d3d9da4a DM |
763 | /* () or (....) */ |
764 | siglistornull: /* NULL */ | |
a9f5ab8d | 765 | { $$ = NULL; } |
d3d9da4a DM |
766 | | siglist |
767 | { $$ = $1; } | |
768 | ||
75230cc1 DM |
769 | /* optional subroutine signature */ |
770 | optsubsignature: /* NULL */ | |
771 | { $$ = NULL; } | |
772 | | subsignature | |
773 | { $$ = $1; } | |
774 | ||
d3d9da4a | 775 | /* Subroutine signature */ |
996b0cb8 PE |
776 | subsignature: '(' subsigguts ')' |
777 | { $$ = $2; } | |
778 | ||
779 | subsigguts: | |
d3d9da4a DM |
780 | { |
781 | ENTER; | |
036bbc13 FC |
782 | SAVEIV(parser->sig_elems); |
783 | SAVEIV(parser->sig_optelems); | |
784 | SAVEI8(parser->sig_slurpy); | |
785 | parser->sig_elems = 0; | |
786 | parser->sig_optelems = 0; | |
787 | parser->sig_slurpy = 0; | |
49fb8620 | 788 | parser->in_my = KEY_sigvar; |
d3d9da4a DM |
789 | } |
790 | siglistornull | |
d3d9da4a | 791 | { |
996b0cb8 | 792 | OP *sigops = $2; |
4fa06845 DM |
793 | UNOP_AUX_item *aux; |
794 | OP *check; | |
d3d9da4a | 795 | |
894f226e DM |
796 | if (!FEATURE_SIGNATURES_IS_ENABLED) |
797 | Perl_croak(aTHX_ "Experimental " | |
798 | "subroutine signatures not enabled"); | |
d3d9da4a DM |
799 | |
800 | /* We shouldn't get here otherwise */ | |
801 | Perl_ck_warner_d(aTHX_ | |
802 | packWARN(WARN_EXPERIMENTAL__SIGNATURES), | |
803 | "The signatures feature is experimental"); | |
804 | ||
4fa06845 DM |
805 | aux = (UNOP_AUX_item*)PerlMemShared_malloc( |
806 | sizeof(UNOP_AUX_item) * 3); | |
036bbc13 FC |
807 | aux[0].iv = parser->sig_elems; |
808 | aux[1].iv = parser->sig_optelems; | |
809 | aux[2].iv = parser->sig_slurpy; | |
4fa06845 DM |
810 | check = newUNOP_AUX(OP_ARGCHECK, 0, NULL, aux); |
811 | sigops = op_prepend_elem(OP_LINESEQ, check, sigops); | |
812 | sigops = op_prepend_elem(OP_LINESEQ, | |
813 | newSTATEOP(0, NULL, NULL), | |
814 | sigops); | |
815 | /* a nextstate at the end handles context | |
816 | * correctly for an empty sub body */ | |
817 | $$ = op_append_elem(OP_LINESEQ, | |
818 | sigops, | |
819 | newSTATEOP(0, NULL, NULL)); | |
d3d9da4a | 820 | |
49fb8620 | 821 | parser->in_my = 0; |
a8c56356 DM |
822 | /* tell the toker that attrributes can follow |
823 | * this sig, but only so that the toker | |
824 | * can skip through any (illegal) trailing | |
825 | * attribute text then give a useful error | |
826 | * message about "attributes before sig", | |
827 | * rather than falling over ina mess at | |
828 | * unrecognised syntax. | |
829 | */ | |
830 | parser->expect = XATTRBLOCK; | |
831 | parser->sig_seen = TRUE; | |
d3d9da4a DM |
832 | LEAVE; |
833 | } | |
834 | ; | |
835 | ||
75230cc1 DM |
836 | /* Optional subroutine body (for named subroutine declaration) */ |
837 | optsubbody: subbody { $$ = $1; } | |
838 | | ';' { $$ = NULL; } | |
839 | ; | |
840 | ||
841 | ||
842 | /* Subroutine body (without signature) */ | |
843 | subbody: remember '{' stmtseq '}' | |
844 | { | |
845 | if (parser->copline > (line_t)$2) | |
846 | parser->copline = (line_t)$2; | |
847 | $$ = block_end($1, $3); | |
848 | } | |
849 | ; | |
850 | ||
851 | ||
852 | /* optional [ Subroutine body with optional signature ] (for named | |
853 | * subroutine declaration) */ | |
854 | optsigsubbody: sigsubbody { $$ = $1; } | |
855 | | ';' { $$ = NULL; } | |
d3d9da4a | 856 | |
75230cc1 DM |
857 | /* Subroutine body with optional signature */ |
858 | sigsubbody: remember optsubsignature '{' stmtseq '}' | |
894f226e DM |
859 | { |
860 | if (parser->copline > (line_t)$3) | |
861 | parser->copline = (line_t)$3; | |
862 | $$ = block_end($1, | |
863 | op_append_list(OP_LINESEQ, $2, $4)); | |
864 | } | |
865 | ; | |
866 | ||
d3d9da4a | 867 | |
891be019 | 868 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 869 | expr : expr ANDOP expr |
b5bbe64a | 870 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 871 | | expr OROP expr |
b5bbe64a | 872 | { $$ = newLOGOP($2, 0, $1, $3); } |
c963b151 | 873 | | expr DOROP expr |
b5bbe64a | 874 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
09b1cffe | 875 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
876 | ; |
877 | ||
891be019 | 878 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 879 | listexpr: listexpr ',' |
b5bbe64a | 880 | { $$ = $1; } |
09b1cffe | 881 | | listexpr ',' term |
abcf453d | 882 | { |
29522234 | 883 | OP* term = $3; |
2fcb4757 | 884 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 885 | } |
fad39ff1 | 886 | | term %prec PREC_LOW |
8d063cd8 LW |
887 | ; |
888 | ||
891be019 | 889 | /* List operators */ |
09b1cffe | 890 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
03d05f6e | 891 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 892 | op_prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); |
f05e27e5 | 893 | } |
891be019 | 894 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
03d05f6e | 895 | { $$ = op_convert_list($1, OPf_STACKED, |
b5bbe64a | 896 | op_prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); |
f05e27e5 | 897 | } |
417a992d | 898 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
03d05f6e | 899 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
900 | op_append_elem(OP_LIST, |
901 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
b46e009d | 902 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 903 | } |
891be019 | 904 | | term ARROW method /* $foo->bar */ |
03d05f6e | 905 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 906 | op_append_elem(OP_LIST, scalar($1), |
b46e009d | 907 | newMETHOP(OP_METHOD, 0, $3))); |
f05e27e5 | 908 | } |
09b1cffe | 909 | | METHOD indirob optlistexpr /* new Class @args */ |
03d05f6e | 910 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
911 | op_append_elem(OP_LIST, |
912 | op_prepend_elem(OP_LIST, $2, $3), | |
b46e009d | 913 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 914 | } |
09b1cffe | 915 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
03d05f6e | 916 | { $$ = op_convert_list(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
917 | op_append_elem(OP_LIST, |
918 | op_prepend_elem(OP_LIST, $2, $4), | |
b46e009d | 919 | newMETHOP(OP_METHOD, 0, $1))); |
f05e27e5 | 920 | } |
09b1cffe | 921 | | LSTOP optlistexpr /* print @args */ |
03d05f6e | 922 | { $$ = op_convert_list($1, 0, $2); } |
09b1cffe | 923 | | FUNC '(' optexpr ')' /* print (@args) */ |
03d05f6e | 924 | { $$ = op_convert_list($1, 0, $3); } |
69afcc21 TC |
925 | | FUNC SUBLEXSTART optexpr SUBLEXEND /* uc($arg) from "\U..." */ |
926 | { $$ = op_convert_list($1, 0, $3); } | |
718a7425 | 927 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 928 | { SvREFCNT_inc_simple_void(PL_compcv); |
a9f5ab8d | 929 | $<opval>$ = newANONATTRSUB($2, 0, NULL, $3); } |
09b1cffe | 930 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 931 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
932 | op_append_elem(OP_LIST, |
933 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 934 | } |
a687059c LW |
935 | ; |
936 | ||
891be019 | 937 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
938 | method : METHOD |
939 | | scalar | |
940 | ; | |
941 | ||
891be019 | 942 | /* Some kind of subscripted expression */ |
89f35911 | 943 | subscripted: gelem '{' expr ';' '}' /* *main::{something} */ |
891be019 SC |
944 | /* In this and all the hash accessors, ';' is |
945 | * provided by the tokeniser */ | |
5c86b6df | 946 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
891be019 | 947 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 | 948 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
f05e27e5 | 949 | } |
891be019 | 950 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
951 | { $$ = newBINOP(OP_AELEM, 0, |
952 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 953 | scalar($4)); |
f05e27e5 | 954 | } |
891be019 | 955 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
956 | { $$ = newBINOP(OP_AELEM, 0, |
957 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 | 958 | scalar($3)); |
f05e27e5 | 959 | } |
5a63ceef | 960 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 961 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
f05e27e5 | 962 | } |
891be019 | 963 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
964 | { $$ = newBINOP(OP_HELEM, 0, |
965 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 966 | jmaybe($4)); } |
891be019 | 967 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
968 | { $$ = newBINOP(OP_HELEM, 0, |
969 | ref(newHVREF($1),OP_RV2HV), | |
5c86b6df | 970 | jmaybe($3)); } |
891be019 | 971 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 972 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
097ff42c Z |
973 | newCVREF(0, scalar($1))); |
974 | if (parser->expect == XBLOCK) | |
975 | parser->expect = XOPERATOR; | |
976 | } | |
891be019 | 977 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 978 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 979 | op_append_elem(OP_LIST, $4, |
097ff42c Z |
980 | newCVREF(0, scalar($1)))); |
981 | if (parser->expect == XBLOCK) | |
982 | parser->expect = XOPERATOR; | |
983 | } | |
fad39ff1 | 984 | |
417a992d | 985 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 986 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 987 | op_append_elem(OP_LIST, $3, |
097ff42c Z |
988 | newCVREF(0, scalar($1)))); |
989 | if (parser->expect == XBLOCK) | |
990 | parser->expect = XOPERATOR; | |
991 | } | |
417a992d | 992 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 993 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
097ff42c Z |
994 | newCVREF(0, scalar($1))); |
995 | if (parser->expect == XBLOCK) | |
996 | parser->expect = XOPERATOR; | |
997 | } | |
9a9798c2 | 998 | | '(' expr ')' '[' expr ']' /* list slice */ |
b5bbe64a | 999 | { $$ = newSLICEOP(0, $5, $2); } |
ea25a9b2 | 1000 | | QWLIST '[' expr ']' /* list literal slice */ |
b5bbe64a | 1001 | { $$ = newSLICEOP(0, $3, $1); } |
9a9798c2 | 1002 | | '(' ')' '[' expr ']' /* empty list slice! */ |
a9f5ab8d | 1003 | { $$ = newSLICEOP(0, $4, NULL); } |
891be019 | 1004 | ; |
fad39ff1 | 1005 | |
891be019 | 1006 | /* Binary operators between terms */ |
3f5e9543 | 1007 | termbinop: term ASSIGNOP term /* $x = $y, $x += $y */ |
b5bbe64a | 1008 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } |
891be019 | 1009 | | term POWOP term /* $x ** $y */ |
b5bbe64a | 1010 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1011 | | term MULOP term /* $x * $y, $x x $y */ |
b5bbe64a | 1012 | { if ($2 != OP_REPEAT) |
79072805 | 1013 | scalar($1); |
b5bbe64a | 1014 | $$ = newBINOP($2, 0, $1, scalar($3)); |
f05e27e5 | 1015 | } |
891be019 | 1016 | | term ADDOP term /* $x + $y */ |
b5bbe64a | 1017 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1018 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
b5bbe64a | 1019 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1020 | | term RELOP term /* $x > $y, etc. */ |
b5bbe64a | 1021 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1022 | | term EQOP term /* $x == $y, $x eq $y */ |
b5bbe64a | 1023 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1024 | | term BITANDOP term /* $x & $y */ |
b5bbe64a | 1025 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1026 | | term BITOROP term /* $x | $y */ |
b5bbe64a | 1027 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
891be019 | 1028 | | term DOTDOT term /* $x..$y, $x...$y */ |
b5bbe64a | 1029 | { $$ = newRANGE($2, scalar($1), scalar($3)); } |
891be019 | 1030 | | term ANDAND term /* $x && $y */ |
b5bbe64a | 1031 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
891be019 | 1032 | | term OROR term /* $x || $y */ |
b5bbe64a | 1033 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
c963b151 | 1034 | | term DORDOR term /* $x // $y */ |
b5bbe64a | 1035 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); } |
891be019 | 1036 | | term MATCHOP term /* $x =~ /$y/ */ |
b5bbe64a | 1037 | { $$ = bind_match($2, $1, $3); } |
891be019 | 1038 | ; |
8d063cd8 | 1039 | |
891be019 SC |
1040 | /* Unary operators and terms */ |
1041 | termunop : '-' term %prec UMINUS /* -$x */ | |
b5bbe64a | 1042 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
891be019 | 1043 | | '+' term %prec UMINUS /* +$x */ |
b5bbe64a JH |
1044 | { $$ = $2; } |
1045 | ||
891be019 | 1046 | | '!' term /* !$x */ |
b5bbe64a | 1047 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1048 | | '~' term /* ~$x */ |
8823cb89 | 1049 | { $$ = newUNOP($1, 0, scalar($2)); } |
891be019 | 1050 | | term POSTINC /* $x++ */ |
79072805 | 1051 | { $$ = newUNOP(OP_POSTINC, 0, |
b5bbe64a | 1052 | op_lvalue(scalar($1), OP_POSTINC)); } |
891be019 | 1053 | | term POSTDEC /* $x-- */ |
79072805 | 1054 | { $$ = newUNOP(OP_POSTDEC, 0, |
b5bbe64a | 1055 | op_lvalue(scalar($1), OP_POSTDEC));} |
cc624add | 1056 | | term POSTJOIN /* implicit join after interpolated ->@ */ |
03d05f6e | 1057 | { $$ = op_convert_list(OP_JOIN, 0, |
cc624add FC |
1058 | op_append_elem( |
1059 | OP_LIST, | |
1060 | newSVREF(scalar( | |
1061 | newSVOP(OP_CONST,0, | |
1062 | newSVpvs("\"")) | |
1063 | )), | |
1064 | $1 | |
1065 | )); | |
cc624add | 1066 | } |
891be019 | 1067 | | PREINC term /* ++$x */ |
79072805 | 1068 | { $$ = newUNOP(OP_PREINC, 0, |
b5bbe64a | 1069 | op_lvalue(scalar($2), OP_PREINC)); } |
891be019 | 1070 | | PREDEC term /* --$x */ |
79072805 | 1071 | { $$ = newUNOP(OP_PREDEC, 0, |
b5bbe64a | 1072 | op_lvalue(scalar($2), OP_PREDEC)); } |
891be019 SC |
1073 | |
1074 | ; | |
1075 | ||
1076 | /* Constructors for anonymous data */ | |
1077 | anonymous: '[' expr ']' | |
b5bbe64a | 1078 | { $$ = newANONLIST($2); } |
891be019 | 1079 | | '[' ']' |
a9f5ab8d | 1080 | { $$ = newANONLIST(NULL);} |
891be019 | 1081 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
b5bbe64a | 1082 | { $$ = newANONHASH($2); } |
891be019 | 1083 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
a9f5ab8d | 1084 | { $$ = newANONHASH(NULL); } |
75230cc1 | 1085 | | ANONSUB startanonsub proto subattrlist subbody %prec '(' |
436ddf68 DM |
1086 | { SvREFCNT_inc_simple_void(PL_compcv); |
1087 | $$ = newANONATTRSUB($2, $3, $4, $5); } | |
75230cc1 | 1088 | | ANON_SIGSUB startanonsub subattrlist sigsubbody %prec '(' |
5a5094bd | 1089 | { SvREFCNT_inc_simple_void(PL_compcv); |
75230cc1 | 1090 | $$ = newANONATTRSUB($2, NULL, $3, $4); } |
891be019 SC |
1091 | ; |
1092 | ||
1093 | /* Things called with "do" */ | |
1094 | termdo : DO term %prec UNIOP /* do $filename */ | |
b5bbe64a | 1095 | { $$ = dofile($2, $1);} |
891be019 | 1096 | | DO block %prec '(' /* do { code */ |
b5bbe64a | 1097 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2));} |
891be019 SC |
1098 | ; |
1099 | ||
1100 | term : termbinop | |
1101 | | termunop | |
1102 | | anonymous | |
1103 | | termdo | |
e9bdcc27 | 1104 | | term '?' term ':' term |
b5bbe64a | 1105 | { $$ = newCONDOP(0, $1, $3, $5); } |
891be019 | 1106 | | REFGEN term /* \$x, \@y, \%z */ |
070d3cb6 | 1107 | { $$ = newUNOP(OP_REFGEN, 0, $2); } |
e118fea3 FC |
1108 | | MY REFGEN term |
1109 | { $$ = newUNOP(OP_REFGEN, 0, localize($3,1)); } | |
09bef843 SB |
1110 | | myattrterm %prec UNIOP |
1111 | { $$ = $1; } | |
1112 | | LOCAL term %prec UNIOP | |
28383d1a | 1113 | { $$ = localize($2,0); } |
a0d0e21e | 1114 | | '(' expr ')' |
b5bbe64a | 1115 | { $$ = sawparens($2); } |
ea25a9b2 | 1116 | | QWLIST |
b5bbe64a | 1117 | { $$ = $1; } |
8d063cd8 | 1118 | | '(' ')' |
b5bbe64a | 1119 | { $$ = sawparens(newNULLLIST()); } |
79072805 | 1120 | | scalar %prec '(' |
8d063cd8 | 1121 | { $$ = $1; } |
79072805 | 1122 | | star %prec '(' |
8d063cd8 | 1123 | { $$ = $1; } |
79072805 | 1124 | | hsh %prec '(' |
8d063cd8 | 1125 | { $$ = $1; } |
79072805 | 1126 | | ary %prec '(' |
8d063cd8 | 1127 | { $$ = $1; } |
891be019 | 1128 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1129 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1130 | | subscripted |
1131 | { $$ = $1; } | |
89f35911 | 1132 | | sliceme '[' expr ']' /* array slice */ |
2fcb4757 | 1133 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1134 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1135 | newLISTOP(OP_ASLICE, 0, |
1136 | list($3), | |
f05e27e5 | 1137 | ref($1, OP_ASLICE))); |
429a2555 FC |
1138 | if ($$ && $1) |
1139 | $$->op_private |= | |
1140 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1141 | } |
76eba8ab | 1142 | | kvslice '[' expr ']' /* array key/value slice */ |
6dd3e0f2 RZ |
1143 | { $$ = op_prepend_elem(OP_KVASLICE, |
1144 | newOP(OP_PUSHMARK, 0), | |
1145 | newLISTOP(OP_KVASLICE, 0, | |
1146 | list($3), | |
1147 | ref(oopsAV($1), OP_KVASLICE))); | |
95a31aad FC |
1148 | if ($$ && $1) |
1149 | $$->op_private |= | |
1150 | $1->op_private & OPpSLICEWARNING; | |
6dd3e0f2 | 1151 | } |
89f35911 | 1152 | | sliceme '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1153 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1154 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1155 | newLISTOP(OP_HSLICE, 0, |
1156 | list($3), | |
a0d0e21e | 1157 | ref(oopsHV($1), OP_HSLICE))); |
429a2555 FC |
1158 | if ($$ && $1) |
1159 | $$->op_private |= | |
1160 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 | 1161 | } |
76eba8ab | 1162 | | kvslice '{' expr ';' '}' /* %hash{@keys} */ |
5cae3edb RZ |
1163 | { $$ = op_prepend_elem(OP_KVHSLICE, |
1164 | newOP(OP_PUSHMARK, 0), | |
1165 | newLISTOP(OP_KVHSLICE, 0, | |
1166 | list($3), | |
1167 | ref($1, OP_KVHSLICE))); | |
95a31aad FC |
1168 | if ($$ && $1) |
1169 | $$->op_private |= | |
1170 | $1->op_private & OPpSLICEWARNING; | |
5cae3edb | 1171 | } |
79072805 LW |
1172 | | THING %prec '(' |
1173 | { $$ = $1; } | |
891be019 | 1174 | | amper /* &foo; */ |
c07a80fd | 1175 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
fb602e32 | 1176 | | amper '(' ')' /* &foo() or foo() */ |
f05e27e5 | 1177 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
f05e27e5 | 1178 | } |
fb602e32 | 1179 | | amper '(' expr ')' /* &foo(@args) or foo(@args) */ |
f05e27e5 DM |
1180 | { |
1181 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1182 | op_append_elem(OP_LIST, $3, scalar($1))); |
f05e27e5 | 1183 | } |
fb602e32 | 1184 | | NOAMP subname optlistexpr /* foo @args (no parens) */ |
a0d0e21e | 1185 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1186 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 | 1187 | } |
89f35911 | 1188 | | term ARROW '$' '*' |
b5bbe64a | 1189 | { $$ = newSVREF($1); } |
89f35911 | 1190 | | term ARROW '@' '*' |
b5bbe64a | 1191 | { $$ = newAVREF($1); } |
89f35911 | 1192 | | term ARROW '%' '*' |
b5bbe64a | 1193 | { $$ = newHVREF($1); } |
89f35911 FC |
1194 | | term ARROW '&' '*' |
1195 | { $$ = newUNOP(OP_ENTERSUB, 0, | |
b5bbe64a | 1196 | scalar(newCVREF($3,$1))); } |
89f35911 | 1197 | | term ARROW '*' '*' %prec '(' |
b5bbe64a | 1198 | { $$ = newGVREF(0,$1); } |
891be019 | 1199 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
b5bbe64a JH |
1200 | { $$ = newOP($1, OPf_SPECIAL); |
1201 | PL_hints |= HINT_BLOCK_SCOPE; } | |
a0d0e21e | 1202 | | LOOPEX term |
b5bbe64a | 1203 | { $$ = newLOOPEX($1,$2); } |
09b1cffe | 1204 | | NOTOP listexpr /* not $foo */ |
b5bbe64a | 1205 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
891be019 | 1206 | | UNIOP /* Unary op, $_ implied */ |
b5bbe64a | 1207 | { $$ = newOP($1, 0); } |
f05e27e5 | 1208 | | UNIOP block /* eval { foo }* */ |
b5bbe64a | 1209 | { $$ = newUNOP($1, 0, $2); } |
891be019 | 1210 | | UNIOP term /* Unary op */ |
b5bbe64a | 1211 | { $$ = newUNOP($1, 0, $2); } |
d2fdf8fd | 1212 | | REQUIRE /* require, $_ implied */ |
b5bbe64a | 1213 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); } |
d2fdf8fd | 1214 | | REQUIRE term /* require Foo */ |
b5bbe64a | 1215 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); } |
3cd0a11a RGS |
1216 | | UNIOPSUB |
1217 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1218 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1219 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1220 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1221 | | FUNC0 /* Nullary operator */ |
b5bbe64a | 1222 | { $$ = newOP($1, 0); } |
ae986130 | 1223 | | FUNC0 '(' ')' |
b5bbe64a | 1224 | { $$ = newOP($1, 0);} |
7eb971ee FC |
1225 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1226 | { $$ = $1; } | |
1227 | | FUNC0OP '(' ')' | |
b5bbe64a | 1228 | { $$ = $1; } |
891be019 | 1229 | | FUNC0SUB /* Sub treated as nullop */ |
b5bbe64a | 1230 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
891be019 | 1231 | | FUNC1 '(' ')' /* not () */ |
b5bbe64a JH |
1232 | { $$ = ($1 == OP_NOT) |
1233 | ? newUNOP($1, 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1234 | : newOP($1, OPf_SPECIAL); } | |
891be019 | 1235 | | FUNC1 '(' expr ')' /* not($foo) */ |
b5bbe64a | 1236 | { $$ = newUNOP($1, 0, $3); } |
d63c20f2 DM |
1237 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1238 | { | |
1239 | if ( $1->op_type != OP_TRANS | |
1240 | && $1->op_type != OP_TRANSR | |
1241 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1242 | { | |
1243 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1244 | SAVEFREESV(PL_compcv); | |
1245 | } else | |
1246 | $<ival>$ = 0; | |
1247 | } | |
69afcc21 | 1248 | SUBLEXSTART listexpr optrepl SUBLEXEND |
9b6b7be8 | 1249 | { $$ = pmruntime($1, $4, $5, 1, $<ival>2); } |
185c2e96 | 1250 | | BAREWORD |
378cc40b | 1251 | | listop |
88e1f1a2 | 1252 | | PLUGEXPR |
8d063cd8 LW |
1253 | ; |
1254 | ||
891be019 | 1255 | /* "my" declarations, with optional attributes */ |
09bef843 | 1256 | myattrterm: MY myterm myattrlist |
b5bbe64a | 1257 | { $$ = my_attrs($2,$3); } |
09bef843 | 1258 | | MY myterm |
28383d1a | 1259 | { $$ = localize($2,1); } |
e118fea3 FC |
1260 | | MY REFGEN myterm myattrlist |
1261 | { $$ = newUNOP(OP_REFGEN, 0, my_attrs($3,$4)); } | |
09bef843 SB |
1262 | ; |
1263 | ||
891be019 | 1264 | /* Things that can be "my"'d */ |
09bef843 | 1265 | myterm : '(' expr ')' |
b5bbe64a | 1266 | { $$ = sawparens($2); } |
09bef843 | 1267 | | '(' ')' |
b5bbe64a JH |
1268 | { $$ = sawparens(newNULLLIST()); } |
1269 | ||
09bef843 SB |
1270 | | scalar %prec '(' |
1271 | { $$ = $1; } | |
1272 | | hsh %prec '(' | |
1273 | { $$ = $1; } | |
1274 | | ary %prec '(' | |
1275 | { $$ = $1; } | |
1276 | ; | |
1277 | ||
891be019 | 1278 | /* Basic list expressions */ |
09b1cffe | 1279 | optlistexpr: /* NULL */ %prec PREC_LOW |
a9f5ab8d | 1280 | { $$ = NULL; } |
09b1cffe | 1281 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1282 | { $$ = $1; } |
1283 | ; | |
1284 | ||
09b1cffe | 1285 | optexpr: /* NULL */ |
a9f5ab8d | 1286 | { $$ = NULL; } |
79072805 LW |
1287 | | expr |
1288 | { $$ = $1; } | |
1289 | ; | |
1290 | ||
9b6b7be8 | 1291 | optrepl: /* NULL */ |
a9f5ab8d | 1292 | { $$ = NULL; } |
9b6b7be8 FC |
1293 | | '/' expr |
1294 | { $$ = $2; } | |
1295 | ; | |
1296 | ||
891be019 SC |
1297 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1298 | lexical */ | |
55497cff | 1299 | my_scalar: scalar |
624fa8bd | 1300 | { parser->in_my = 0; $$ = my($1); } |
55497cff | 1301 | ; |
1302 | ||
d39c26a6 FC |
1303 | my_var : scalar |
1304 | | ary | |
1305 | | hsh | |
1306 | ; | |
1307 | ||
1308 | refgen_topic: my_var | |
1309 | | amper | |
1310 | ; | |
1311 | ||
e118fea3 FC |
1312 | my_refgen: MY REFGEN |
1313 | | REFGEN MY | |
1314 | ; | |
1315 | ||
79072805 | 1316 | amper : '&' indirob |
b5bbe64a | 1317 | { $$ = newCVREF($1,$2); } |
a687059c LW |
1318 | ; |
1319 | ||
79072805 | 1320 | scalar : '$' indirob |
b5bbe64a | 1321 | { $$ = newSVREF($2); } |
a687059c LW |
1322 | ; |
1323 | ||
79072805 | 1324 | ary : '@' indirob |
f05e27e5 | 1325 | { $$ = newAVREF($2); |
b5bbe64a | 1326 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1327 | } |
79072805 LW |
1328 | ; |
1329 | ||
1330 | hsh : '%' indirob | |
f05e27e5 | 1331 | { $$ = newHVREF($2); |
b5bbe64a | 1332 | if ($$) $$->op_private |= $1; |
f05e27e5 | 1333 | } |
79072805 LW |
1334 | ; |
1335 | ||
1336 | arylen : DOLSHARP indirob | |
b5bbe64a | 1337 | { $$ = newAVREF($2); } |
ff25e5db | 1338 | | term ARROW DOLSHARP '*' |
b5bbe64a | 1339 | { $$ = newAVREF($1); } |
79072805 LW |
1340 | ; |
1341 | ||
1342 | star : '*' indirob | |
b5bbe64a | 1343 | { $$ = newGVREF(0,$2); } |
79072805 LW |
1344 | ; |
1345 | ||
89f35911 FC |
1346 | sliceme : ary |
1347 | | term ARROW '@' | |
b5bbe64a | 1348 | { $$ = newAVREF($1); } |
89f35911 FC |
1349 | ; |
1350 | ||
76eba8ab FC |
1351 | kvslice : hsh |
1352 | | term ARROW '%' | |
b5bbe64a | 1353 | { $$ = newHVREF($1); } |
76eba8ab FC |
1354 | ; |
1355 | ||
89f35911 FC |
1356 | gelem : star |
1357 | | term ARROW '*' | |
b5bbe64a | 1358 | { $$ = newGVREF(0,$1); } |
89f35911 FC |
1359 | ; |
1360 | ||
891be019 | 1361 | /* Indirect objects */ |
185c2e96 | 1362 | indirob : BAREWORD |
79072805 | 1363 | { $$ = scalar($1); } |
fad39ff1 | 1364 | | scalar %prec PREC_LOW |
f05e27e5 | 1365 | { $$ = scalar($1); } |
79072805 | 1366 | | block |
3ad73efd | 1367 | { $$ = op_scope($1); } |
79072805 | 1368 | |
93a17b20 LW |
1369 | | PRIVATEREF |
1370 | { $$ = $1; } | |
8d063cd8 | 1371 | ; |