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 | * | |
f05e27e5 DM |
23 | * Note that these derived files are included and compiled twice; once |
24 | * from perly.c, and once from madly.c. The second time, a number of MAD | |
25 | * macros are defined, which compile in extra code that allows the parse | |
26 | * tree to be accurately dumped. In particular: | |
27 | * | |
28 | * MAD defined if compiling madly.c | |
29 | * DO_MAD(A) expands to A under madly.c, to null otherwise | |
30 | * IF_MAD(a,b) expands to A under madly.c, to B otherwise | |
31 | * TOKEN_GETMAD() expands to token_getmad() under madly.c, to null otherwise | |
32 | * TOKEN_FREE() similarly | |
33 | * OP_GETMAD() similarly | |
34 | * IVAL(i) expands to (i)->tk_lval.ival or (i) | |
35 | * PVAL(p) expands to (p)->tk_lval.pval or (p) | |
36 | * | |
166f8a29 DM |
37 | * The main job of of this grammar is to call the various newFOO() |
38 | * functions in op.c to build a syntax tree of OP structs. | |
61296642 | 39 | * It relies on the lexer in toke.c to do the tokenizing. |
29522234 DM |
40 | * |
41 | * Note: due to the way that the cleanup code works WRT to freeing ops on | |
42 | * the parse stack, it is dangerous to assign to the $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
78cdf107 | 72 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 73 | |
7c70caa5 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' '=' '.' |
f0fcb552 | 75 | |
ea25a9b2 | 76 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
7eb971ee | 77 | %token <opval> FUNC0OP FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 78 | %token <opval> PLUGEXPR PLUGSTMT |
f05e27e5 | 79 | %token <p_tkval> LABEL |
123d08c9 DM |
80 | %token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE |
81 | %token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR | |
82 | %token <i_tkval> GIVEN WHEN DEFAULT | |
be25f609 | 83 | %token <i_tkval> LOOPEX DOTDOT YADAYADA |
123d08c9 DM |
84 | %token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP |
85 | %token <i_tkval> RELOP EQOP MULOP ADDOP | |
86 | %token <i_tkval> DOLSHARP DO HASHBRACK NOAMP | |
8d2a5fb4 | 87 | %token <i_tkval> LOCAL MY REQUIRE |
705fe0e5 | 88 | %token <i_tkval> COLONATTR FORMLBRACK FORMRBRACK |
f05e27e5 | 89 | |
727a8fe5 | 90 | %type <ival> grammar remember mremember |
f05e27e5 DM |
91 | %type <ival> startsub startanonsub startformsub |
92 | /* FIXME for MAD - are these two ival? */ | |
b5a64814 | 93 | %type <ival> mintro |
f05e27e5 | 94 | |
8e720305 | 95 | %type <opval> stmtseq fullstmt labfullstmt barestmt block mblock else |
fad39ff1 | 96 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
76eba8ab | 97 | %type <opval> sliceme kvslice gelem |
09b1cffe Z |
98 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr miexpr |
99 | %type <opval> optlistexpr optexpr indirob listop method | |
30d9c59b | 100 | %type <opval> formname subname proto optsubbody cont my_scalar formblock |
f05e27e5 | 101 | %type <opval> subattrlist myattrlist myattrterm myterm |
30d9c59b | 102 | %type <opval> realsubbody subsignature termbinop termunop anonymous termdo |
705fe0e5 | 103 | %type <opval> formstmtseq formline formarg |
79072805 | 104 | |
123d08c9 | 105 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 SM |
106 | %nonassoc LOOPEX |
107 | ||
123d08c9 DM |
108 | %left <i_tkval> OROP DOROP |
109 | %left <i_tkval> ANDOP | |
110 | %right <i_tkval> NOTOP | |
36477c24 | 111 | %nonassoc LSTOP LSTOPSUB |
123d08c9 DM |
112 | %left <i_tkval> ',' |
113 | %right <i_tkval> ASSIGNOP | |
114 | %right <i_tkval> '?' ':' | |
be25f609 | 115 | %nonassoc DOTDOT YADAYADA |
123d08c9 DM |
116 | %left <i_tkval> OROR DORDOR |
117 | %left <i_tkval> ANDAND | |
118 | %left <i_tkval> BITOROP | |
119 | %left <i_tkval> BITANDOP | |
a687059c LW |
120 | %nonassoc EQOP |
121 | %nonassoc RELOP | |
36477c24 | 122 | %nonassoc UNIOP UNIOPSUB |
20515881 | 123 | %nonassoc REQUIRE |
123d08c9 | 124 | %left <i_tkval> SHIFTOP |
a687059c LW |
125 | %left ADDOP |
126 | %left MULOP | |
123d08c9 DM |
127 | %left <i_tkval> MATCHOP |
128 | %right <i_tkval> '!' '~' UMINUS REFGEN | |
129 | %right <i_tkval> POWOP | |
cc624add | 130 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC POSTJOIN |
123d08c9 DM |
131 | %left <i_tkval> ARROW |
132 | %nonassoc <i_tkval> ')' | |
133 | %left <i_tkval> '(' | |
fad39ff1 | 134 | %left '[' '{' |
8d063cd8 | 135 | |
123d08c9 | 136 | %token <i_tkval> PEG |
7f46837f | 137 | |
8d063cd8 LW |
138 | %% /* RULES */ |
139 | ||
28ac2b49 | 140 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
141 | grammar : GRAMPROG |
142 | { | |
143 | PL_parser->expect = XSTATE; | |
144 | } | |
145 | remember stmtseq | |
146 | { | |
147 | newPROG(block_end($3,$4)); | |
148 | $$ = 0; | |
149 | } | |
78cdf107 Z |
150 | | GRAMEXPR |
151 | { | |
152 | parser->expect = XTERM; | |
153 | } | |
09b1cffe | 154 | optexpr |
78cdf107 Z |
155 | { |
156 | PL_eval_root = $3; | |
157 | $$ = 0; | |
158 | } | |
e53d8f76 Z |
159 | | GRAMBLOCK |
160 | { | |
161 | parser->expect = XBLOCK; | |
162 | } | |
163 | block | |
164 | { | |
5f211341 | 165 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
166 | PL_eval_root = $3; |
167 | $$ = 0; | |
168 | yyunlex(); | |
169 | parser->yychar = YYEOF; | |
170 | } | |
171 | | GRAMBARESTMT | |
172 | { | |
173 | parser->expect = XSTATE; | |
174 | } | |
175 | barestmt | |
176 | { | |
177 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
178 | PL_eval_root = $3; |
179 | $$ = 0; | |
180 | yyunlex(); | |
181 | parser->yychar = YYEOF; | |
182 | } | |
9eb5c532 | 183 | | GRAMFULLSTMT |
28ac2b49 | 184 | { |
9eb5c532 Z |
185 | parser->expect = XSTATE; |
186 | } | |
187 | fullstmt | |
188 | { | |
5f211341 | 189 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 190 | PL_eval_root = $3; |
28ac2b49 Z |
191 | $$ = 0; |
192 | yyunlex(); | |
193 | parser->yychar = YYEOF; | |
194 | } | |
07ffcb73 Z |
195 | | GRAMSTMTSEQ |
196 | { | |
197 | parser->expect = XSTATE; | |
198 | } | |
5f211341 | 199 | stmtseq |
07ffcb73 Z |
200 | { |
201 | PL_eval_root = $3; | |
202 | $$ = 0; | |
203 | } | |
204 | ; | |
205 | ||
891be019 | 206 | /* An ordinary block */ |
5f211341 | 207 | block : '{' remember stmtseq '}' |
53a7735b DM |
208 | { if (PL_parser->copline > (line_t)IVAL($1)) |
209 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
210 | $$ = block_end($2, $3); |
211 | TOKEN_GETMAD($1,$$,'{'); | |
212 | TOKEN_GETMAD($4,$$,'}'); | |
213 | } | |
a0d0e21e LW |
214 | ; |
215 | ||
7c70caa5 | 216 | /* format body */ |
705fe0e5 | 217 | formblock: '=' remember ';' FORMRBRACK formstmtseq ';' '.' |
7c70caa5 FC |
218 | { if (PL_parser->copline > (line_t)IVAL($1)) |
219 | PL_parser->copline = (line_t)IVAL($1); | |
705fe0e5 | 220 | $$ = block_end($2, $5); |
7c70caa5 | 221 | TOKEN_GETMAD($1,$$,'{'); |
705fe0e5 | 222 | TOKEN_GETMAD($7,$$,'}'); |
7c70caa5 FC |
223 | } |
224 | ; | |
225 | ||
55497cff | 226 | remember: /* NULL */ /* start a full lexical scope */ |
227 | { $$ = block_start(TRUE); } | |
228 | ; | |
229 | ||
5f211341 | 230 | mblock : '{' mremember stmtseq '}' |
53a7735b DM |
231 | { if (PL_parser->copline > (line_t)IVAL($1)) |
232 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
233 | $$ = block_end($2, $3); |
234 | TOKEN_GETMAD($1,$$,'{'); | |
235 | TOKEN_GETMAD($4,$$,'}'); | |
236 | } | |
55497cff | 237 | ; |
238 | ||
239 | mremember: /* NULL */ /* start a partial lexical scope */ | |
240 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
241 | ; |
242 | ||
eae48c89 | 243 | /* A sequence of statements in the program */ |
5f211341 | 244 | stmtseq : /* NULL */ |
bcabcc50 | 245 | { $$ = (OP*)NULL; } |
5f211341 | 246 | | stmtseq fullstmt |
2fcb4757 | 247 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 248 | PL_pad_reset_pending = TRUE; |
503de470 DM |
249 | if ($1 && $2) |
250 | PL_hints |= HINT_BLOCK_SCOPE; | |
251 | } | |
8d063cd8 LW |
252 | ; |
253 | ||
705fe0e5 FC |
254 | /* A sequence of format lines */ |
255 | formstmtseq: /* NULL */ | |
256 | { $$ = (OP*)NULL; } | |
257 | | formstmtseq formline | |
258 | { $$ = op_append_list(OP_LINESEQ, $1, $2); | |
259 | PL_pad_reset_pending = TRUE; | |
260 | if ($1 && $2) | |
261 | PL_hints |= HINT_BLOCK_SCOPE; | |
262 | } | |
263 | ; | |
264 | ||
8e720305 Z |
265 | /* A statement in the program, including optional labels */ |
266 | fullstmt: barestmt | |
eae48c89 | 267 | { |
8e720305 Z |
268 | if($1) { |
269 | $$ = newSTATEOP(0, NULL, $1); | |
eae48c89 | 270 | } else { |
8e720305 | 271 | $$ = IF_MAD(newOP(OP_NULL, 0), NULL); |
eae48c89 Z |
272 | } |
273 | } | |
8e720305 Z |
274 | | labfullstmt |
275 | { $$ = $1; } | |
276 | ; | |
277 | ||
278 | labfullstmt: LABEL barestmt | |
279 | { | |
5504e6cf FC |
280 | $$ = newSTATEOP(SVf_UTF8 |
281 | * PVAL($1)[strlen(PVAL($1))+1], | |
282 | PVAL($1), $2); | |
8e720305 Z |
283 | TOKEN_GETMAD($1, |
284 | $2 ? cLISTOPx($$)->op_first : $$, 'L'); | |
285 | } | |
286 | | LABEL labfullstmt | |
287 | { | |
5504e6cf FC |
288 | $$ = newSTATEOP(SVf_UTF8 |
289 | * PVAL($1)[strlen(PVAL($1))+1], | |
290 | PVAL($1), $2); | |
8e720305 Z |
291 | TOKEN_GETMAD($1, cLISTOPx($$)->op_first, 'L'); |
292 | } | |
eae48c89 Z |
293 | ; |
294 | ||
295 | /* A bare statement, lacking label and other aspects of state op */ | |
296 | barestmt: PLUGSTMT | |
0d863452 | 297 | { $$ = $1; } |
eae48c89 Z |
298 | | PEG |
299 | { | |
300 | $$ = newOP(OP_NULL,0); | |
301 | TOKEN_GETMAD($1,$$,'p'); | |
302 | } | |
7c70caa5 | 303 | | FORMAT startformsub formname formblock |
f05e27e5 | 304 | { |
eae48c89 | 305 | CV *fmtcv = PL_compcv; |
eae48c89 Z |
306 | #ifdef MAD |
307 | $$ = newFORM($2, $3, $4); | |
308 | prepend_madprops($1->tk_mad, $$, 'F'); | |
309 | $1->tk_mad = 0; | |
310 | token_free($1); | |
311 | #else | |
312 | newFORM($2, $3, $4); | |
313 | $$ = (OP*)NULL; | |
314 | #endif | |
4a273b91 | 315 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
eae48c89 | 316 | SvREFCNT_inc_simple_void(fmtcv); |
cc76b5cc | 317 | pad_add_anon(fmtcv, OP_NULL); |
f05e27e5 | 318 | } |
eae48c89 | 319 | } |
50278755 FC |
320 | | SUB subname startsub |
321 | { | |
322 | if ($2->op_type == OP_CONST) { | |
323 | const char *const name = | |
324 | SvPV_nolen_const(((SVOP*)$2)->op_sv); | |
325 | if (strEQ(name, "BEGIN") || strEQ(name, "END") | |
764212cf FC |
326 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
327 | || strEQ(name, "UNITCHECK")) | |
328 | CvSPECIAL_on(PL_compcv); | |
50278755 | 329 | } |
e07561e6 FC |
330 | else |
331 | /* State subs inside anonymous subs need to be | |
332 | clonable themselves. */ | |
6d5c2147 FC |
333 | if (CvANON(CvOUTSIDE(PL_compcv)) |
334 | || CvCLONE(CvOUTSIDE(PL_compcv)) | |
335 | || !PadnameIsSTATE(PadlistNAMESARRAY(CvPADLIST( | |
336 | CvOUTSIDE(PL_compcv) | |
337 | ))[$2->op_targ])) | |
e07561e6 | 338 | CvCLONE_on(PL_compcv); |
764212cf FC |
339 | PL_parser->in_my = 0; |
340 | PL_parser->in_my_stash = NULL; | |
341 | } | |
30d9c59b | 342 | proto subattrlist optsubbody |
eae48c89 Z |
343 | { |
344 | SvREFCNT_inc_simple_void(PL_compcv); | |
345 | #ifdef MAD | |
346 | { | |
347 | OP* o = newSVOP(OP_ANONCODE, 0, | |
50278755 FC |
348 | (SV*)( |
349 | #endif | |
350 | $2->op_type == OP_CONST | |
351 | ? newATTRSUB($3, $2, $5, $6, $7) | |
352 | : newMYSUB($3, $2, $5, $6, $7) | |
353 | #ifdef MAD | |
354 | )); | |
eae48c89 Z |
355 | $$ = newOP(OP_NULL,0); |
356 | op_getmad(o,$$,'&'); | |
764212cf FC |
357 | op_getmad($2,$$,'n'); |
358 | op_getmad($5,$$,'s'); | |
359 | op_getmad($6,$$,'a'); | |
eae48c89 | 360 | token_getmad($1,$$,'d'); |
764212cf FC |
361 | append_madprops($7->op_madprop, $$, 0); |
362 | $7->op_madprop = 0; | |
f05e27e5 | 363 | } |
eae48c89 | 364 | #else |
50278755 | 365 | ; |
eae48c89 Z |
366 | $$ = (OP*)NULL; |
367 | #endif | |
764212cf | 368 | intro_my(); |
f05e27e5 | 369 | } |
eae48c89 | 370 | | PACKAGE WORD WORD ';' |
5f211341 | 371 | { |
eae48c89 Z |
372 | #ifdef MAD |
373 | $$ = package($3); | |
374 | token_getmad($1,$$,'o'); | |
375 | if ($2) | |
376 | package_version($2); | |
377 | token_getmad($4,$$,';'); | |
378 | #else | |
379 | package($3); | |
380 | if ($2) | |
381 | package_version($2); | |
382 | $$ = (OP*)NULL; | |
383 | #endif | |
384 | } | |
385 | | USE startsub | |
386 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
09b1cffe | 387 | WORD WORD optlistexpr ';' |
eae48c89 Z |
388 | { |
389 | SvREFCNT_inc_simple_void(PL_compcv); | |
390 | #ifdef MAD | |
391 | $$ = utilize(IVAL($1), $2, $4, $5, $6); | |
392 | token_getmad($1,$$,'o'); | |
393 | token_getmad($7,$$,';'); | |
394 | if (PL_parser->rsfp_filters && | |
395 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
396 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); | |
397 | #else | |
398 | utilize(IVAL($1), $2, $4, $5, $6); | |
399 | $$ = (OP*)NULL; | |
400 | #endif | |
401 | } | |
417a992d | 402 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 403 | { |
3ad73efd Z |
404 | $$ = block_end($3, |
405 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
406 | TOKEN_GETMAD($1,$$,'I'); |
407 | TOKEN_GETMAD($2,$$,'('); | |
408 | TOKEN_GETMAD($5,$$,')'); | |
409 | PL_parser->copline = (line_t)IVAL($1); | |
410 | } | |
417a992d | 411 | | UNLESS '(' remember miexpr ')' mblock else |
eae48c89 | 412 | { |
3ad73efd Z |
413 | $$ = block_end($3, |
414 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
415 | TOKEN_GETMAD($1,$$,'I'); |
416 | TOKEN_GETMAD($2,$$,'('); | |
417 | TOKEN_GETMAD($5,$$,')'); | |
418 | PL_parser->copline = (line_t)IVAL($1); | |
419 | } | |
b5a64814 | 420 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 421 | { |
b5a64814 | 422 | const PADOFFSET offset = pad_findmy_pvs("$_", 0); |
eae48c89 | 423 | $$ = block_end($3, |
b5a64814 FC |
424 | newGIVENOP($4, op_scope($6), |
425 | offset == NOT_IN_PAD | |
426 | || PAD_COMPNAME_FLAGS_isOUR(offset) | |
427 | ? 0 | |
428 | : offset)); | |
eae48c89 Z |
429 | PL_parser->copline = (line_t)IVAL($1); |
430 | } | |
417a992d | 431 | | WHEN '(' remember mexpr ')' mblock |
3ad73efd | 432 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } |
eae48c89 | 433 | | DEFAULT block |
3ad73efd | 434 | { $$ = newWHENOP(0, op_scope($2)); } |
417a992d | 435 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
436 | { |
437 | $$ = block_end($3, | |
438 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 439 | $4, $7, $8, $6)); |
eae48c89 Z |
440 | TOKEN_GETMAD($1,$$,'W'); |
441 | TOKEN_GETMAD($2,$$,'('); | |
442 | TOKEN_GETMAD($5,$$,')'); | |
443 | PL_parser->copline = (line_t)IVAL($1); | |
444 | } | |
417a992d | 445 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
446 | { |
447 | $$ = block_end($3, | |
94bf0465 Z |
448 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
449 | $4, $7, $8, $6)); | |
eae48c89 Z |
450 | TOKEN_GETMAD($1,$$,'W'); |
451 | TOKEN_GETMAD($2,$$,'('); | |
452 | TOKEN_GETMAD($5,$$,')'); | |
453 | PL_parser->copline = (line_t)IVAL($1); | |
454 | } | |
417a992d | 455 | | FOR '(' remember mnexpr ';' texpr ';' mintro mnexpr ')' |
eae48c89 Z |
456 | mblock |
457 | { | |
458 | OP *initop = IF_MAD($4 ? $4 : newOP(OP_NULL, 0), $4); | |
459 | OP *forop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 460 | scalar($6), $11, $9, $8); |
eae48c89 Z |
461 | if (initop) { |
462 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
463 | op_append_elem(OP_LINESEQ, | |
464 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
465 | forop)); | |
5f211341 | 466 | } |
eae48c89 Z |
467 | DO_MAD({ forop = newUNOP(OP_NULL, 0, forop); }) |
468 | $$ = block_end($3, forop); | |
469 | TOKEN_GETMAD($1,$$,'3'); | |
470 | TOKEN_GETMAD($2,$$,'('); | |
471 | TOKEN_GETMAD($5,$$,'1'); | |
472 | TOKEN_GETMAD($7,$$,'2'); | |
473 | TOKEN_GETMAD($10,$$,')'); | |
474 | PL_parser->copline = (line_t)IVAL($1); | |
475 | } | |
417a992d | 476 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 477 | { |
94bf0465 | 478 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
eae48c89 Z |
479 | TOKEN_GETMAD($1,$$,'W'); |
480 | TOKEN_GETMAD($2,$$,'d'); | |
481 | TOKEN_GETMAD($5,$$,'('); | |
482 | TOKEN_GETMAD($7,$$,')'); | |
483 | PL_parser->copline = (line_t)IVAL($1); | |
484 | } | |
417a992d | 485 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 486 | { |
94bf0465 | 487 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 488 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
eae48c89 Z |
489 | TOKEN_GETMAD($1,$$,'W'); |
490 | TOKEN_GETMAD($3,$$,'('); | |
491 | TOKEN_GETMAD($6,$$,')'); | |
492 | PL_parser->copline = (line_t)IVAL($1); | |
493 | } | |
417a992d | 494 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
495 | { |
496 | $$ = block_end($3, | |
94bf0465 | 497 | newFOROP(0, (OP*)NULL, $4, $6, $7)); |
eae48c89 Z |
498 | TOKEN_GETMAD($1,$$,'W'); |
499 | TOKEN_GETMAD($2,$$,'('); | |
500 | TOKEN_GETMAD($5,$$,')'); | |
501 | PL_parser->copline = (line_t)IVAL($1); | |
502 | } | |
503 | | block cont | |
504 | { | |
505 | /* a block is a loop that happens once */ | |
506 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 507 | (OP*)NULL, $1, $2, 0); |
eae48c89 Z |
508 | } |
509 | | PACKAGE WORD WORD '{' remember | |
510 | { | |
eae48c89 | 511 | package($3); |
eae48c89 | 512 | if ($2) { |
eae48c89 | 513 | package_version($2); |
eae48c89 Z |
514 | } |
515 | } | |
516 | stmtseq '}' | |
517 | { | |
518 | /* a block is a loop that happens once */ | |
94bf0465 | 519 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
eae48c89 | 520 | (OP*)NULL, block_end($5, $7), (OP*)NULL, 0); |
eae48c89 Z |
521 | TOKEN_GETMAD($4,$$,'{'); |
522 | TOKEN_GETMAD($8,$$,'}'); | |
523 | if (PL_parser->copline > (line_t)IVAL($4)) | |
524 | PL_parser->copline = (line_t)IVAL($4); | |
525 | } | |
526 | | sideff ';' | |
527 | { | |
528 | PL_parser->expect = XSTATE; | |
529 | $$ = $1; | |
530 | TOKEN_GETMAD($2,$$,';'); | |
531 | } | |
532 | | ';' | |
533 | { | |
534 | PL_parser->expect = XSTATE; | |
535 | $$ = IF_MAD(newOP(OP_NULL, 0), (OP*)NULL); | |
536 | TOKEN_GETMAD($1,$$,';'); | |
537 | PL_parser->copline = NOLINE; | |
5f211341 | 538 | } |
8d063cd8 LW |
539 | ; |
540 | ||
705fe0e5 FC |
541 | /* Format line */ |
542 | formline: THING formarg | |
543 | { OP *list; | |
544 | if ($2) { | |
545 | OP *term = $2; | |
546 | DO_MAD(term = newUNOP(OP_NULL, 0, term)); | |
547 | list = op_append_elem(OP_LIST, $1, term); | |
548 | } | |
549 | else { | |
550 | #ifdef MAD | |
551 | OP *op = newNULLLIST(); | |
552 | list = op_append_elem(OP_LIST, $1, op); | |
553 | #else | |
554 | list = $1; | |
555 | #endif | |
556 | } | |
557 | if (PL_parser->copline == NOLINE) | |
558 | PL_parser->copline = CopLINE(PL_curcop)-1; | |
559 | else PL_parser->copline--; | |
560 | $$ = newSTATEOP(0, NULL, | |
561 | convert(OP_FORMLINE, 0, list)); | |
562 | } | |
563 | ; | |
564 | ||
565 | formarg : /* NULL */ | |
566 | { $$ = NULL; } | |
567 | | FORMLBRACK stmtseq FORMRBRACK | |
568 | { $$ = op_unscope($2); } | |
569 | ; | |
570 | ||
891be019 | 571 | /* An expression which may have a side-effect */ |
a687059c | 572 | sideff : error |
bcabcc50 | 573 | { $$ = (OP*)NULL; } |
a687059c | 574 | | expr |
79072805 | 575 | { $$ = $1; } |
a687059c | 576 | | expr IF expr |
f05e27e5 DM |
577 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
578 | TOKEN_GETMAD($2,$$,'i'); | |
579 | } | |
a687059c | 580 | | expr UNLESS expr |
f05e27e5 DM |
581 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
582 | TOKEN_GETMAD($2,$$,'i'); | |
583 | } | |
a687059c | 584 | | expr WHILE expr |
f05e27e5 DM |
585 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
586 | TOKEN_GETMAD($2,$$,'w'); | |
587 | } | |
55497cff | 588 | | expr UNTIL iexpr |
f05e27e5 DM |
589 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
590 | TOKEN_GETMAD($2,$$,'w'); | |
591 | } | |
ecca16b0 | 592 | | expr FOR expr |
94bf0465 | 593 | { $$ = newFOROP(0, (OP*)NULL, $3, $1, (OP*)NULL); |
eae48c89 | 594 | TOKEN_GETMAD($2,$$,'w'); |
94bf0465 | 595 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 596 | } |
f20dcd76 | 597 | | expr WHEN expr |
3ad73efd | 598 | { $$ = newWHENOP($3, op_scope($1)); } |
79072805 LW |
599 | ; |
600 | ||
891be019 | 601 | /* else and elsif blocks */ |
79072805 | 602 | else : /* NULL */ |
bcabcc50 | 603 | { $$ = (OP*)NULL; } |
55497cff | 604 | | ELSE mblock |
3ad73efd Z |
605 | { |
606 | ($2)->op_flags |= OPf_PARENS; | |
607 | $$ = op_scope($2); | |
f05e27e5 DM |
608 | TOKEN_GETMAD($1,$$,'o'); |
609 | } | |
417a992d | 610 | | ELSIF '(' mexpr ')' mblock else |
53a7735b | 611 | { PL_parser->copline = (line_t)IVAL($1); |
3ad73efd Z |
612 | $$ = newCONDOP(0, |
613 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
614 | op_scope($5), $6); | |
615 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 DM |
616 | TOKEN_GETMAD($1,$$,'I'); |
617 | TOKEN_GETMAD($2,$$,'('); | |
618 | TOKEN_GETMAD($4,$$,')'); | |
619 | } | |
79072805 LW |
620 | ; |
621 | ||
891be019 | 622 | /* Continue blocks */ |
79072805 | 623 | cont : /* NULL */ |
bcabcc50 | 624 | { $$ = (OP*)NULL; } |
79072805 | 625 | | CONTINUE block |
3ad73efd Z |
626 | { |
627 | $$ = op_scope($2); | |
f05e27e5 DM |
628 | TOKEN_GETMAD($1,$$,'o'); |
629 | } | |
79072805 LW |
630 | ; |
631 | ||
a034e688 DM |
632 | /* determine whether there are any new my declarations */ |
633 | mintro : /* NULL */ | |
634 | { $$ = (PL_min_intro_pending && | |
635 | PL_max_intro_pending >= PL_min_intro_pending); | |
636 | intro_my(); } | |
637 | ||
891be019 | 638 | /* Normal expression */ |
8d063cd8 | 639 | nexpr : /* NULL */ |
bcabcc50 | 640 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
641 | | sideff |
642 | ; | |
643 | ||
891be019 | 644 | /* Boolean expression */ |
8d063cd8 | 645 | texpr : /* NULL means true */ |
f05e27e5 DM |
646 | { YYSTYPE tmplval; |
647 | (void)scan_num("1", &tmplval); | |
648 | $$ = tmplval.opval; } | |
8d063cd8 LW |
649 | | expr |
650 | ; | |
651 | ||
891be019 | 652 | /* Inverted boolean expression */ |
55497cff | 653 | iexpr : expr |
654 | { $$ = invert(scalar($1)); } | |
655 | ; | |
656 | ||
891be019 | 657 | /* Expression with its own lexical scope */ |
55497cff | 658 | mexpr : expr |
bbce6d69 | 659 | { $$ = $1; intro_my(); } |
660 | ; | |
661 | ||
662 | mnexpr : nexpr | |
663 | { $$ = $1; intro_my(); } | |
55497cff | 664 | ; |
665 | ||
55497cff | 666 | miexpr : iexpr |
bbce6d69 | 667 | { $$ = $1; intro_my(); } |
55497cff | 668 | ; |
669 | ||
44a8e56a | 670 | formname: WORD { $$ = $1; } |
bcabcc50 | 671 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
672 | ; |
673 | ||
fa83b5b6 | 674 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
675 | { $$ = start_subparse(FALSE, 0); |
676 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 677 | |
28757baa | 678 | ; |
679 | ||
680 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
681 | { $$ = start_subparse(FALSE, CVf_ANON); |
682 | SAVEFREESV(PL_compcv); } | |
28757baa | 683 | ; |
684 | ||
44a8e56a | 685 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
686 | { $$ = start_subparse(TRUE, 0); |
687 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 688 | ; |
689 | ||
891be019 | 690 | /* Name of a subroutine - must be a bareword, could be special */ |
50278755 | 691 | subname : WORD |
4210d3f1 | 692 | | PRIVATEREF |
a0d0e21e LW |
693 | ; |
694 | ||
891be019 | 695 | /* Subroutine prototype */ |
4633a7c4 | 696 | proto : /* NULL */ |
bcabcc50 | 697 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
698 | | THING |
699 | ; | |
28757baa | 700 | |
891be019 | 701 | /* Optional list of subroutine attributes */ |
09bef843 | 702 | subattrlist: /* NULL */ |
bcabcc50 | 703 | { $$ = (OP*)NULL; } |
09bef843 | 704 | | COLONATTR THING |
f05e27e5 DM |
705 | { $$ = $2; |
706 | TOKEN_GETMAD($1,$$,':'); | |
707 | } | |
09bef843 | 708 | | COLONATTR |
f05e27e5 DM |
709 | { $$ = IF_MAD( |
710 | newOP(OP_NULL, 0), | |
bcabcc50 | 711 | (OP*)NULL |
f05e27e5 DM |
712 | ); |
713 | TOKEN_GETMAD($1,$$,':'); | |
714 | } | |
09bef843 SB |
715 | ; |
716 | ||
891be019 | 717 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 718 | myattrlist: COLONATTR THING |
f05e27e5 DM |
719 | { $$ = $2; |
720 | TOKEN_GETMAD($1,$$,':'); | |
721 | } | |
09bef843 | 722 | | COLONATTR |
f05e27e5 DM |
723 | { $$ = IF_MAD( |
724 | newOP(OP_NULL, 0), | |
bcabcc50 | 725 | (OP*)NULL |
f05e27e5 DM |
726 | ); |
727 | TOKEN_GETMAD($1,$$,':'); | |
728 | } | |
09bef843 SB |
729 | ; |
730 | ||
30d9c59b Z |
731 | /* Optional subroutine signature */ |
732 | subsignature: /* NULL */ { $$ = (OP*)NULL; } | |
733 | | '(' | |
734 | { | |
735 | if (!FEATURE_SIGNATURES_IS_ENABLED) | |
736 | Perl_croak(aTHX_ "Experimental " | |
737 | "subroutine signatures not enabled"); | |
738 | Perl_ck_warner_d(aTHX_ | |
739 | packWARN(WARN_EXPERIMENTAL__SIGNATURES), | |
740 | "The signatures feature is experimental"); | |
741 | $<opval>$ = parse_subsignature(); | |
742 | } | |
743 | ')' | |
744 | { | |
745 | $$ = op_append_list(OP_LINESEQ, $<opval>2, | |
746 | newSTATEOP(0, NULL, sawparens(newNULLLIST()))); | |
747 | PL_parser->expect = XBLOCK; | |
748 | } | |
749 | ; | |
750 | ||
751 | /* Subroutine body - block with optional signature */ | |
752 | realsubbody: remember subsignature '{' stmtseq '}' | |
753 | { | |
754 | if (PL_parser->copline > (line_t)IVAL($3)) | |
755 | PL_parser->copline = (line_t)IVAL($3); | |
756 | $$ = block_end($1, | |
757 | op_append_list(OP_LINESEQ, $2, $4)); | |
758 | TOKEN_GETMAD($3,$$,'{'); | |
759 | TOKEN_GETMAD($5,$$,'}'); | |
760 | } | |
761 | ; | |
762 | ||
763 | /* Optional subroutine body, for named subroutine declaration */ | |
764 | optsubbody: realsubbody { $$ = $1; } | |
f05e27e5 DM |
765 | | ';' { $$ = IF_MAD( |
766 | newOP(OP_NULL,0), | |
bcabcc50 | 767 | (OP*)NULL |
f05e27e5 | 768 | ); |
53a7735b | 769 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
770 | TOKEN_GETMAD($1,$$,';'); |
771 | } | |
8d063cd8 LW |
772 | ; |
773 | ||
891be019 | 774 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 775 | expr : expr ANDOP expr |
f05e27e5 DM |
776 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
777 | TOKEN_GETMAD($2,$$,'o'); | |
778 | } | |
a0d0e21e | 779 | | expr OROP expr |
f05e27e5 DM |
780 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
781 | TOKEN_GETMAD($2,$$,'o'); | |
782 | } | |
c963b151 | 783 | | expr DOROP expr |
f05e27e5 DM |
784 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
785 | TOKEN_GETMAD($2,$$,'o'); | |
786 | } | |
09b1cffe | 787 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
788 | ; |
789 | ||
891be019 | 790 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 791 | listexpr: listexpr ',' |
f05e27e5 DM |
792 | { |
793 | #ifdef MAD | |
794 | OP* op = newNULLLIST(); | |
795 | token_getmad($2,op,','); | |
2fcb4757 | 796 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
797 | #else |
798 | $$ = $1; | |
799 | #endif | |
800 | } | |
09b1cffe | 801 | | listexpr ',' term |
f05e27e5 | 802 | { |
29522234 | 803 | OP* term = $3; |
f05e27e5 | 804 | DO_MAD( |
29522234 DM |
805 | term = newUNOP(OP_NULL, 0, term); |
806 | token_getmad($2,term,','); | |
f05e27e5 | 807 | ) |
2fcb4757 | 808 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 809 | } |
fad39ff1 | 810 | | term %prec PREC_LOW |
8d063cd8 LW |
811 | ; |
812 | ||
891be019 | 813 | /* List operators */ |
09b1cffe | 814 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 815 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 816 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
817 | TOKEN_GETMAD($1,$$,'o'); |
818 | } | |
891be019 | 819 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 820 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 821 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
822 | TOKEN_GETMAD($1,$$,'o'); |
823 | TOKEN_GETMAD($2,$$,'('); | |
824 | TOKEN_GETMAD($5,$$,')'); | |
825 | } | |
417a992d | 826 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
4633a7c4 | 827 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
828 | op_append_elem(OP_LIST, |
829 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
830 | newUNOP(OP_METHOD, 0, $3))); |
831 | TOKEN_GETMAD($2,$$,'A'); | |
832 | TOKEN_GETMAD($4,$$,'('); | |
833 | TOKEN_GETMAD($6,$$,')'); | |
834 | } | |
891be019 | 835 | | term ARROW method /* $foo->bar */ |
b1524f17 | 836 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 837 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
838 | newUNOP(OP_METHOD, 0, $3))); |
839 | TOKEN_GETMAD($2,$$,'A'); | |
840 | } | |
09b1cffe | 841 | | METHOD indirob optlistexpr /* new Class @args */ |
4633a7c4 | 842 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
843 | op_append_elem(OP_LIST, |
844 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
845 | newUNOP(OP_METHOD, 0, $1))); |
846 | } | |
09b1cffe | 847 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
4633a7c4 | 848 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
849 | op_append_elem(OP_LIST, |
850 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
851 | newUNOP(OP_METHOD, 0, $1))); |
852 | TOKEN_GETMAD($3,$$,'('); | |
853 | TOKEN_GETMAD($5,$$,')'); | |
854 | } | |
09b1cffe | 855 | | LSTOP optlistexpr /* print @args */ |
f05e27e5 DM |
856 | { $$ = convert(IVAL($1), 0, $2); |
857 | TOKEN_GETMAD($1,$$,'o'); | |
858 | } | |
09b1cffe | 859 | | FUNC '(' optexpr ')' /* print (@args) */ |
f05e27e5 DM |
860 | { $$ = convert(IVAL($1), 0, $3); |
861 | TOKEN_GETMAD($1,$$,'o'); | |
862 | TOKEN_GETMAD($2,$$,'('); | |
863 | TOKEN_GETMAD($4,$$,')'); | |
864 | } | |
718a7425 | 865 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 866 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 867 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
09b1cffe | 868 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 869 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
870 | op_append_elem(OP_LIST, |
871 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 872 | } |
a687059c LW |
873 | ; |
874 | ||
891be019 | 875 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
876 | method : METHOD |
877 | | scalar | |
878 | ; | |
879 | ||
891be019 | 880 | /* Some kind of subscripted expression */ |
89f35911 | 881 | subscripted: gelem '{' expr ';' '}' /* *main::{something} */ |
891be019 SC |
882 | /* In this and all the hash accessors, ';' is |
883 | * provided by the tokeniser */ | |
264e1af3 | 884 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 885 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
886 | TOKEN_GETMAD($2,$$,'{'); |
887 | TOKEN_GETMAD($4,$$,';'); | |
888 | TOKEN_GETMAD($5,$$,'}'); | |
889 | } | |
891be019 | 890 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
891 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
892 | TOKEN_GETMAD($2,$$,'['); | |
893 | TOKEN_GETMAD($4,$$,']'); | |
894 | } | |
891be019 | 895 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
896 | { $$ = newBINOP(OP_AELEM, 0, |
897 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
898 | scalar($4)); |
899 | TOKEN_GETMAD($2,$$,'a'); | |
900 | TOKEN_GETMAD($3,$$,'['); | |
901 | TOKEN_GETMAD($5,$$,']'); | |
902 | } | |
891be019 | 903 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
904 | { $$ = newBINOP(OP_AELEM, 0, |
905 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
906 | scalar($3)); |
907 | TOKEN_GETMAD($2,$$,'['); | |
908 | TOKEN_GETMAD($4,$$,']'); | |
909 | } | |
5a63ceef | 910 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 911 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 912 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
913 | TOKEN_GETMAD($2,$$,'{'); |
914 | TOKEN_GETMAD($4,$$,';'); | |
915 | TOKEN_GETMAD($5,$$,'}'); | |
916 | } | |
891be019 | 917 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
918 | { $$ = newBINOP(OP_HELEM, 0, |
919 | ref(newHVREF($1),OP_RV2HV), | |
920 | jmaybe($4)); | |
53a7735b | 921 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
922 | TOKEN_GETMAD($2,$$,'a'); |
923 | TOKEN_GETMAD($3,$$,'{'); | |
924 | TOKEN_GETMAD($5,$$,';'); | |
925 | TOKEN_GETMAD($6,$$,'}'); | |
926 | } | |
891be019 | 927 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
928 | { $$ = newBINOP(OP_HELEM, 0, |
929 | ref(newHVREF($1),OP_RV2HV), | |
930 | jmaybe($3)); | |
53a7735b | 931 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
932 | TOKEN_GETMAD($2,$$,'{'); |
933 | TOKEN_GETMAD($4,$$,';'); | |
934 | TOKEN_GETMAD($5,$$,'}'); | |
935 | } | |
891be019 | 936 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 937 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
938 | newCVREF(0, scalar($1))); |
939 | TOKEN_GETMAD($2,$$,'a'); | |
940 | TOKEN_GETMAD($3,$$,'('); | |
941 | TOKEN_GETMAD($4,$$,')'); | |
942 | } | |
891be019 | 943 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 944 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 945 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
946 | newCVREF(0, scalar($1)))); |
947 | TOKEN_GETMAD($2,$$,'a'); | |
948 | TOKEN_GETMAD($3,$$,'('); | |
949 | TOKEN_GETMAD($5,$$,')'); | |
950 | } | |
fad39ff1 | 951 | |
417a992d | 952 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 953 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 954 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
955 | newCVREF(0, scalar($1)))); |
956 | TOKEN_GETMAD($2,$$,'('); | |
957 | TOKEN_GETMAD($4,$$,')'); | |
958 | } | |
417a992d | 959 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 960 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
961 | newCVREF(0, scalar($1))); |
962 | TOKEN_GETMAD($2,$$,'('); | |
963 | TOKEN_GETMAD($3,$$,')'); | |
964 | } | |
9a9798c2 | 965 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
966 | { $$ = newSLICEOP(0, $5, $2); |
967 | TOKEN_GETMAD($1,$$,'('); | |
968 | TOKEN_GETMAD($3,$$,')'); | |
969 | TOKEN_GETMAD($4,$$,'['); | |
970 | TOKEN_GETMAD($6,$$,']'); | |
971 | } | |
ea25a9b2 Z |
972 | | QWLIST '[' expr ']' /* list literal slice */ |
973 | { $$ = newSLICEOP(0, $3, $1); | |
974 | TOKEN_GETMAD($2,$$,'['); | |
975 | TOKEN_GETMAD($4,$$,']'); | |
976 | } | |
9a9798c2 | 977 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 978 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
979 | TOKEN_GETMAD($1,$$,'('); |
980 | TOKEN_GETMAD($2,$$,')'); | |
981 | TOKEN_GETMAD($3,$$,'['); | |
982 | TOKEN_GETMAD($5,$$,']'); | |
983 | } | |
891be019 | 984 | ; |
fad39ff1 | 985 | |
891be019 | 986 | /* Binary operators between terms */ |
f05e27e5 DM |
987 | termbinop: term ASSIGNOP term /* $x = $y */ |
988 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
989 | TOKEN_GETMAD($2,$$,'o'); | |
990 | } | |
891be019 | 991 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
992 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
993 | TOKEN_GETMAD($2,$$,'o'); | |
994 | } | |
891be019 | 995 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 996 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 997 | scalar($1); |
f05e27e5 DM |
998 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
999 | TOKEN_GETMAD($2,$$,'o'); | |
1000 | } | |
891be019 | 1001 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
1002 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1003 | TOKEN_GETMAD($2,$$,'o'); | |
1004 | } | |
891be019 | 1005 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
1006 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1007 | TOKEN_GETMAD($2,$$,'o'); | |
1008 | } | |
891be019 | 1009 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
1010 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1011 | TOKEN_GETMAD($2,$$,'o'); | |
1012 | } | |
891be019 | 1013 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
1014 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1015 | TOKEN_GETMAD($2,$$,'o'); | |
1016 | } | |
891be019 | 1017 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
1018 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1019 | TOKEN_GETMAD($2,$$,'o'); | |
1020 | } | |
891be019 | 1021 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
1022 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1023 | TOKEN_GETMAD($2,$$,'o'); | |
1024 | } | |
891be019 | 1025 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
1026 | { |
1027 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 1028 | DO_MAD({ |
f05e27e5 DM |
1029 | UNOP *op; |
1030 | op = (UNOP*)$$; | |
1031 | op = (UNOP*)op->op_first; /* get to flop */ | |
1032 | op = (UNOP*)op->op_first; /* get to flip */ | |
1033 | op = (UNOP*)op->op_first; /* get to range */ | |
1034 | token_getmad($2,(OP*)op,'o'); | |
04ff073f | 1035 | }); |
f05e27e5 | 1036 | } |
891be019 | 1037 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
1038 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
1039 | TOKEN_GETMAD($2,$$,'o'); | |
1040 | } | |
891be019 | 1041 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
1042 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
1043 | TOKEN_GETMAD($2,$$,'o'); | |
1044 | } | |
c963b151 | 1045 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
1046 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
1047 | TOKEN_GETMAD($2,$$,'o'); | |
1048 | } | |
891be019 | 1049 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
1050 | { $$ = bind_match(IVAL($2), $1, $3); |
1051 | TOKEN_GETMAD($2, | |
1052 | ($$->op_type == OP_NOT | |
1053 | ? ((UNOP*)$$)->op_first : $$), | |
1054 | '~'); | |
1055 | } | |
891be019 | 1056 | ; |
8d063cd8 | 1057 | |
891be019 SC |
1058 | /* Unary operators and terms */ |
1059 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
1060 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
1061 | TOKEN_GETMAD($1,$$,'o'); | |
1062 | } | |
891be019 | 1063 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
1064 | { $$ = IF_MAD( |
1065 | newUNOP(OP_NULL, 0, $2), | |
1066 | $2 | |
1067 | ); | |
1068 | TOKEN_GETMAD($1,$$,'+'); | |
1069 | } | |
891be019 | 1070 | | '!' term /* !$x */ |
f05e27e5 DM |
1071 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1072 | TOKEN_GETMAD($1,$$,'o'); | |
1073 | } | |
891be019 | 1074 | | '~' term /* ~$x */ |
f05e27e5 DM |
1075 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1076 | TOKEN_GETMAD($1,$$,'o'); | |
1077 | } | |
891be019 | 1078 | | term POSTINC /* $x++ */ |
79072805 | 1079 | { $$ = newUNOP(OP_POSTINC, 0, |
3ad73efd | 1080 | op_lvalue(scalar($1), OP_POSTINC)); |
f05e27e5 DM |
1081 | TOKEN_GETMAD($2,$$,'o'); |
1082 | } | |
891be019 | 1083 | | term POSTDEC /* $x-- */ |
79072805 | 1084 | { $$ = newUNOP(OP_POSTDEC, 0, |
3ad73efd | 1085 | op_lvalue(scalar($1), OP_POSTDEC)); |
f05e27e5 DM |
1086 | TOKEN_GETMAD($2,$$,'o'); |
1087 | } | |
cc624add FC |
1088 | | term POSTJOIN /* implicit join after interpolated ->@ */ |
1089 | { $$ = convert(OP_JOIN, 0, | |
1090 | op_append_elem( | |
1091 | OP_LIST, | |
1092 | newSVREF(scalar( | |
1093 | newSVOP(OP_CONST,0, | |
1094 | newSVpvs("\"")) | |
1095 | )), | |
1096 | $1 | |
1097 | )); | |
1098 | TOKEN_GETMAD($2,$$,'o'); | |
1099 | } | |
891be019 | 1100 | | PREINC term /* ++$x */ |
79072805 | 1101 | { $$ = newUNOP(OP_PREINC, 0, |
3ad73efd | 1102 | op_lvalue(scalar($2), OP_PREINC)); |
f05e27e5 DM |
1103 | TOKEN_GETMAD($1,$$,'o'); |
1104 | } | |
891be019 | 1105 | | PREDEC term /* --$x */ |
79072805 | 1106 | { $$ = newUNOP(OP_PREDEC, 0, |
3ad73efd | 1107 | op_lvalue(scalar($2), OP_PREDEC)); |
f05e27e5 DM |
1108 | TOKEN_GETMAD($1,$$,'o'); |
1109 | } | |
891be019 SC |
1110 | |
1111 | ; | |
1112 | ||
1113 | /* Constructors for anonymous data */ | |
1114 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1115 | { $$ = newANONLIST($2); |
1116 | TOKEN_GETMAD($1,$$,'['); | |
1117 | TOKEN_GETMAD($3,$$,']'); | |
1118 | } | |
891be019 | 1119 | | '[' ']' |
bcabcc50 | 1120 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1121 | TOKEN_GETMAD($1,$$,'['); |
1122 | TOKEN_GETMAD($2,$$,']'); | |
1123 | } | |
891be019 | 1124 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1125 | { $$ = newANONHASH($2); |
1126 | TOKEN_GETMAD($1,$$,'{'); | |
1127 | TOKEN_GETMAD($3,$$,';'); | |
1128 | TOKEN_GETMAD($4,$$,'}'); | |
1129 | } | |
891be019 | 1130 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1131 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1132 | TOKEN_GETMAD($1,$$,'{'); |
1133 | TOKEN_GETMAD($2,$$,';'); | |
1134 | TOKEN_GETMAD($3,$$,'}'); | |
1135 | } | |
30d9c59b | 1136 | | ANONSUB startanonsub proto subattrlist realsubbody %prec '(' |
5a5094bd | 1137 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1138 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1139 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1140 | OP_GETMAD($3,$$,'s'); |
1141 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1142 | } |
891be019 SC |
1143 | |
1144 | ; | |
1145 | ||
1146 | /* Things called with "do" */ | |
1147 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1148 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1149 | TOKEN_GETMAD($1,$$,'o'); |
1150 | } | |
891be019 | 1151 | | DO block %prec '(' /* do { code */ |
3ad73efd | 1152 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2)); |
f05e27e5 DM |
1153 | TOKEN_GETMAD($1,$$,'D'); |
1154 | } | |
891be019 SC |
1155 | ; |
1156 | ||
1157 | term : termbinop | |
1158 | | termunop | |
1159 | | anonymous | |
1160 | | termdo | |
e9bdcc27 | 1161 | | term '?' term ':' term |
f05e27e5 DM |
1162 | { $$ = newCONDOP(0, $1, $3, $5); |
1163 | TOKEN_GETMAD($2,$$,'?'); | |
1164 | TOKEN_GETMAD($4,$$,':'); | |
1165 | } | |
891be019 | 1166 | | REFGEN term /* \$x, \@y, \%z */ |
3ad73efd | 1167 | { $$ = newUNOP(OP_REFGEN, 0, op_lvalue($2,OP_REFGEN)); |
f05e27e5 DM |
1168 | TOKEN_GETMAD($1,$$,'o'); |
1169 | } | |
09bef843 SB |
1170 | | myattrterm %prec UNIOP |
1171 | { $$ = $1; } | |
1172 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1173 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1174 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1175 | } |
a0d0e21e | 1176 | | '(' expr ')' |
f05e27e5 DM |
1177 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1178 | TOKEN_GETMAD($1,$$,'('); | |
1179 | TOKEN_GETMAD($3,$$,')'); | |
1180 | } | |
ea25a9b2 Z |
1181 | | QWLIST |
1182 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1183 | | '(' ')' |
f05e27e5 DM |
1184 | { $$ = sawparens(newNULLLIST()); |
1185 | TOKEN_GETMAD($1,$$,'('); | |
1186 | TOKEN_GETMAD($2,$$,')'); | |
1187 | } | |
79072805 | 1188 | | scalar %prec '(' |
8d063cd8 | 1189 | { $$ = $1; } |
79072805 | 1190 | | star %prec '(' |
8d063cd8 | 1191 | { $$ = $1; } |
79072805 | 1192 | | hsh %prec '(' |
8d063cd8 | 1193 | { $$ = $1; } |
79072805 | 1194 | | ary %prec '(' |
8d063cd8 | 1195 | { $$ = $1; } |
891be019 | 1196 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1197 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1198 | | subscripted |
1199 | { $$ = $1; } | |
89f35911 | 1200 | | sliceme '[' expr ']' /* array slice */ |
2fcb4757 | 1201 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1202 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1203 | newLISTOP(OP_ASLICE, 0, |
1204 | list($3), | |
f05e27e5 | 1205 | ref($1, OP_ASLICE))); |
429a2555 FC |
1206 | if ($$ && $1) |
1207 | $$->op_private |= | |
1208 | $1->op_private & OPpSLICEWARNING; | |
f05e27e5 DM |
1209 | TOKEN_GETMAD($2,$$,'['); |
1210 | TOKEN_GETMAD($4,$$,']'); | |
1211 | } | |
76eba8ab | 1212 | | kvslice '[' expr ']' /* array key/value slice */ |
6dd3e0f2 RZ |
1213 | { $$ = op_prepend_elem(OP_KVASLICE, |
1214 | newOP(OP_PUSHMARK, 0), | |
1215 | newLISTOP(OP_KVASLICE, 0, | |
1216 | list($3), | |
1217 | ref(oopsAV($1), OP_KVASLICE))); | |
95a31aad FC |
1218 | if ($$ && $1) |
1219 | $$->op_private |= | |
1220 | $1->op_private & OPpSLICEWARNING; | |
6dd3e0f2 RZ |
1221 | TOKEN_GETMAD($2,$$,'['); |
1222 | TOKEN_GETMAD($4,$$,']'); | |
1223 | } | |
89f35911 | 1224 | | sliceme '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1225 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1226 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1227 | newLISTOP(OP_HSLICE, 0, |
1228 | list($3), | |
a0d0e21e | 1229 | ref(oopsHV($1), OP_HSLICE))); |
429a2555 FC |
1230 | if ($$ && $1) |
1231 | $$->op_private |= | |
1232 | $1->op_private & OPpSLICEWARNING; | |
53a7735b | 1233 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1234 | TOKEN_GETMAD($2,$$,'{'); |
1235 | TOKEN_GETMAD($4,$$,';'); | |
1236 | TOKEN_GETMAD($5,$$,'}'); | |
1237 | } | |
76eba8ab | 1238 | | kvslice '{' expr ';' '}' /* %hash{@keys} */ |
5cae3edb RZ |
1239 | { $$ = op_prepend_elem(OP_KVHSLICE, |
1240 | newOP(OP_PUSHMARK, 0), | |
1241 | newLISTOP(OP_KVHSLICE, 0, | |
1242 | list($3), | |
1243 | ref($1, OP_KVHSLICE))); | |
95a31aad FC |
1244 | if ($$ && $1) |
1245 | $$->op_private |= | |
1246 | $1->op_private & OPpSLICEWARNING; | |
5cae3edb RZ |
1247 | PL_parser->expect = XOPERATOR; |
1248 | TOKEN_GETMAD($2,$$,'{'); | |
1249 | TOKEN_GETMAD($4,$$,';'); | |
1250 | TOKEN_GETMAD($5,$$,'}'); | |
1251 | } | |
79072805 LW |
1252 | | THING %prec '(' |
1253 | { $$ = $1; } | |
891be019 | 1254 | | amper /* &foo; */ |
c07a80fd | 1255 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
fb602e32 | 1256 | | amper '(' ')' /* &foo() or foo() */ |
f05e27e5 DM |
1257 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1258 | TOKEN_GETMAD($2,$$,'('); | |
1259 | TOKEN_GETMAD($3,$$,')'); | |
1260 | } | |
fb602e32 | 1261 | | amper '(' expr ')' /* &foo(@args) or foo(@args) */ |
f05e27e5 DM |
1262 | { |
1263 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1264 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1265 | DO_MAD({ |
f05e27e5 DM |
1266 | OP* op = $$; |
1267 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1268 | op = (OP*)op->op_madprop->mad_val; | |
1269 | } | |
1270 | token_getmad($2,op,'('); | |
1271 | token_getmad($4,op,')'); | |
04ff073f | 1272 | }); |
f05e27e5 | 1273 | } |
fb602e32 | 1274 | | NOAMP subname optlistexpr /* foo @args (no parens) */ |
a0d0e21e | 1275 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1276 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1277 | TOKEN_GETMAD($1,$$,'o'); |
1278 | } | |
89f35911 FC |
1279 | | term ARROW '$' '*' |
1280 | { $$ = newSVREF($1); | |
1281 | TOKEN_GETMAD($3,$$,'$'); | |
1282 | } | |
1283 | | term ARROW '@' '*' | |
1284 | { $$ = newAVREF($1); | |
1285 | TOKEN_GETMAD($3,$$,'@'); | |
1286 | } | |
1287 | | term ARROW '%' '*' | |
1288 | { $$ = newHVREF($1); | |
1289 | TOKEN_GETMAD($3,$$,'%'); | |
1290 | } | |
1291 | | term ARROW '&' '*' | |
1292 | { $$ = newUNOP(OP_ENTERSUB, 0, | |
1293 | scalar(newCVREF(IVAL($3),$1))); | |
1294 | TOKEN_GETMAD($3,$$,'&'); | |
1295 | } | |
1296 | | term ARROW '*' '*' %prec '(' | |
1297 | { $$ = newGVREF(0,$1); | |
1298 | TOKEN_GETMAD($3,$$,'*'); | |
1299 | } | |
891be019 | 1300 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1301 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1302 | PL_hints |= HINT_BLOCK_SCOPE; | |
1303 | TOKEN_GETMAD($1,$$,'o'); | |
1304 | } | |
a0d0e21e | 1305 | | LOOPEX term |
f05e27e5 DM |
1306 | { $$ = newLOOPEX(IVAL($1),$2); |
1307 | TOKEN_GETMAD($1,$$,'o'); | |
1308 | } | |
09b1cffe | 1309 | | NOTOP listexpr /* not $foo */ |
f05e27e5 DM |
1310 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1311 | TOKEN_GETMAD($1,$$,'o'); | |
1312 | } | |
891be019 | 1313 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1314 | { $$ = newOP(IVAL($1), 0); |
1315 | TOKEN_GETMAD($1,$$,'o'); | |
1316 | } | |
1317 | | UNIOP block /* eval { foo }* */ | |
1318 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1319 | TOKEN_GETMAD($1,$$,'o'); | |
1320 | } | |
891be019 | 1321 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1322 | { $$ = newUNOP(IVAL($1), 0, $2); |
1323 | TOKEN_GETMAD($1,$$,'o'); | |
1324 | } | |
d2fdf8fd RGS |
1325 | | REQUIRE /* require, $_ implied */ |
1326 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1327 | TOKEN_GETMAD($1,$$,'o'); | |
1328 | } | |
1329 | | REQUIRE term /* require Foo */ | |
1330 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1331 | TOKEN_GETMAD($1,$$,'o'); | |
1332 | } | |
3cd0a11a RGS |
1333 | | UNIOPSUB |
1334 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1335 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1336 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1337 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1338 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1339 | { $$ = newOP(IVAL($1), 0); |
1340 | TOKEN_GETMAD($1,$$,'o'); | |
1341 | } | |
ae986130 | 1342 | | FUNC0 '(' ')' |
f05e27e5 DM |
1343 | { $$ = newOP(IVAL($1), 0); |
1344 | TOKEN_GETMAD($1,$$,'o'); | |
1345 | TOKEN_GETMAD($2,$$,'('); | |
1346 | TOKEN_GETMAD($3,$$,')'); | |
1347 | } | |
7eb971ee FC |
1348 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1349 | { $$ = $1; } | |
1350 | | FUNC0OP '(' ')' | |
1351 | { $$ = $1; | |
1352 | TOKEN_GETMAD($2,$$,'('); | |
1353 | TOKEN_GETMAD($3,$$,')'); | |
1354 | } | |
891be019 | 1355 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1356 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1357 | scalar($1)); } |
891be019 | 1358 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1359 | { $$ = (IVAL($1) == OP_NOT) |
1360 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1361 | : newOP(IVAL($1), OPf_SPECIAL); | |
1362 | ||
1363 | TOKEN_GETMAD($1,$$,'o'); | |
1364 | TOKEN_GETMAD($2,$$,'('); | |
1365 | TOKEN_GETMAD($3,$$,')'); | |
1366 | } | |
891be019 | 1367 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1368 | { $$ = newUNOP(IVAL($1), 0, $3); |
1369 | TOKEN_GETMAD($1,$$,'o'); | |
1370 | TOKEN_GETMAD($2,$$,'('); | |
1371 | TOKEN_GETMAD($4,$$,')'); | |
1372 | } | |
d63c20f2 DM |
1373 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1374 | { | |
1375 | if ( $1->op_type != OP_TRANS | |
1376 | && $1->op_type != OP_TRANSR | |
1377 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1378 | { | |
1379 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1380 | SAVEFREESV(PL_compcv); | |
1381 | } else | |
1382 | $<ival>$ = 0; | |
1383 | } | |
1384 | '(' listexpr ')' | |
1385 | { $$ = pmruntime($1, $4, 1, $<ival>2); | |
1386 | TOKEN_GETMAD($3,$$,'('); | |
1387 | TOKEN_GETMAD($5,$$,')'); | |
f05e27e5 | 1388 | } |
79072805 | 1389 | | WORD |
378cc40b | 1390 | | listop |
be25f609 | 1391 | | YADAYADA |
1392 | { | |
1393 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1394 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1395 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1396 | } |
88e1f1a2 | 1397 | | PLUGEXPR |
8d063cd8 LW |
1398 | ; |
1399 | ||
891be019 | 1400 | /* "my" declarations, with optional attributes */ |
09bef843 | 1401 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1402 | { $$ = my_attrs($2,$3); |
1403 | DO_MAD( | |
1404 | token_getmad($1,$$,'d'); | |
1405 | append_madprops($3->op_madprop, $$, 'a'); | |
1406 | $3->op_madprop = 0; | |
04ff073f | 1407 | ); |
f05e27e5 | 1408 | } |
09bef843 | 1409 | | MY myterm |
f05e27e5 DM |
1410 | { $$ = localize($2,IVAL($1)); |
1411 | TOKEN_GETMAD($1,$$,'d'); | |
1412 | } | |
09bef843 SB |
1413 | ; |
1414 | ||
891be019 | 1415 | /* Things that can be "my"'d */ |
09bef843 | 1416 | myterm : '(' expr ')' |
f05e27e5 DM |
1417 | { $$ = sawparens($2); |
1418 | TOKEN_GETMAD($1,$$,'('); | |
1419 | TOKEN_GETMAD($3,$$,')'); | |
1420 | } | |
09bef843 | 1421 | | '(' ')' |
f05e27e5 DM |
1422 | { $$ = sawparens(newNULLLIST()); |
1423 | TOKEN_GETMAD($1,$$,'('); | |
1424 | TOKEN_GETMAD($2,$$,')'); | |
1425 | } | |
09bef843 SB |
1426 | | scalar %prec '(' |
1427 | { $$ = $1; } | |
1428 | | hsh %prec '(' | |
1429 | { $$ = $1; } | |
1430 | | ary %prec '(' | |
1431 | { $$ = $1; } | |
1432 | ; | |
1433 | ||
891be019 | 1434 | /* Basic list expressions */ |
09b1cffe | 1435 | optlistexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1436 | { $$ = (OP*)NULL; } |
09b1cffe | 1437 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1438 | { $$ = $1; } |
1439 | ; | |
1440 | ||
09b1cffe | 1441 | optexpr: /* NULL */ |
bcabcc50 | 1442 | { $$ = (OP*)NULL; } |
79072805 LW |
1443 | | expr |
1444 | { $$ = $1; } | |
1445 | ; | |
1446 | ||
891be019 SC |
1447 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1448 | lexical */ | |
55497cff | 1449 | my_scalar: scalar |
12bd6ede | 1450 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1451 | ; |
1452 | ||
79072805 | 1453 | amper : '&' indirob |
f05e27e5 DM |
1454 | { $$ = newCVREF(IVAL($1),$2); |
1455 | TOKEN_GETMAD($1,$$,'&'); | |
1456 | } | |
a687059c LW |
1457 | ; |
1458 | ||
79072805 | 1459 | scalar : '$' indirob |
f05e27e5 DM |
1460 | { $$ = newSVREF($2); |
1461 | TOKEN_GETMAD($1,$$,'$'); | |
1462 | } | |
a687059c LW |
1463 | ; |
1464 | ||
79072805 | 1465 | ary : '@' indirob |
f05e27e5 | 1466 | { $$ = newAVREF($2); |
429a2555 | 1467 | if ($$) $$->op_private |= IVAL($1); |
f05e27e5 DM |
1468 | TOKEN_GETMAD($1,$$,'@'); |
1469 | } | |
79072805 LW |
1470 | ; |
1471 | ||
1472 | hsh : '%' indirob | |
f05e27e5 | 1473 | { $$ = newHVREF($2); |
95a31aad | 1474 | if ($$) $$->op_private |= IVAL($1); |
f05e27e5 DM |
1475 | TOKEN_GETMAD($1,$$,'%'); |
1476 | } | |
79072805 LW |
1477 | ; |
1478 | ||
1479 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1480 | { $$ = newAVREF($2); |
1481 | TOKEN_GETMAD($1,$$,'l'); | |
1482 | } | |
ff25e5db FC |
1483 | | term ARROW DOLSHARP '*' |
1484 | { $$ = newAVREF($1); | |
1485 | TOKEN_GETMAD($3,$$,'l'); | |
1486 | } | |
79072805 LW |
1487 | ; |
1488 | ||
1489 | star : '*' indirob | |
f05e27e5 DM |
1490 | { $$ = newGVREF(0,$2); |
1491 | TOKEN_GETMAD($1,$$,'*'); | |
1492 | } | |
79072805 LW |
1493 | ; |
1494 | ||
89f35911 FC |
1495 | sliceme : ary |
1496 | | term ARROW '@' | |
1497 | { $$ = newAVREF($1); | |
1498 | TOKEN_GETMAD($3,$$,'@'); | |
1499 | } | |
1500 | ; | |
1501 | ||
76eba8ab FC |
1502 | kvslice : hsh |
1503 | | term ARROW '%' | |
1504 | { $$ = newHVREF($1); | |
1505 | TOKEN_GETMAD($3,$$,'@'); | |
1506 | } | |
1507 | ; | |
1508 | ||
89f35911 FC |
1509 | gelem : star |
1510 | | term ARROW '*' | |
1511 | { $$ = newGVREF(0,$1); | |
1512 | TOKEN_GETMAD($3,$$,'*'); | |
1513 | } | |
1514 | ; | |
1515 | ||
891be019 | 1516 | /* Indirect objects */ |
79072805 LW |
1517 | indirob : WORD |
1518 | { $$ = scalar($1); } | |
fad39ff1 | 1519 | | scalar %prec PREC_LOW |
f05e27e5 | 1520 | { $$ = scalar($1); } |
79072805 | 1521 | | block |
3ad73efd | 1522 | { $$ = op_scope($1); } |
79072805 | 1523 | |
93a17b20 LW |
1524 | | PRIVATEREF |
1525 | { $$ = $1; } | |
8d063cd8 | 1526 | ; |