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 |
1129b882 | 4 | * Copyright (c) 2007, 2008 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 $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
78cdf107 | 72 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 73 | |
123d08c9 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
f0fcb552 | 75 | |
ea25a9b2 | 76 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
4633a7c4 | 77 | %token <opval> 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 | |
87 | %token <i_tkval> LOCAL MY MYSUB REQUIRE | |
88 | %token <i_tkval> COLONATTR | |
f05e27e5 | 89 | |
ea25a9b2 Z |
90 | %type <i_tkval> lpar_or_qw |
91 | ||
727a8fe5 | 92 | %type <ival> grammar remember mremember |
f05e27e5 DM |
93 | %type <ival> startsub startanonsub startformsub |
94 | /* FIXME for MAD - are these two ival? */ | |
95 | %type <ival> mydefsv mintro | |
96 | ||
8e720305 | 97 | %type <opval> stmtseq fullstmt labfullstmt barestmt block mblock else |
fad39ff1 | 98 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
09b1cffe Z |
99 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr miexpr |
100 | %type <opval> optlistexpr optexpr indirob listop method | |
44a8e56a | 101 | %type <opval> formname subname proto subbody cont my_scalar |
f05e27e5 | 102 | %type <opval> subattrlist myattrlist myattrterm myterm |
891be019 | 103 | %type <opval> termbinop termunop anonymous termdo |
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 | |
130 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC | |
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,$$,'}'); | |
213 | } | |
a0d0e21e LW |
214 | ; |
215 | ||
55497cff | 216 | remember: /* NULL */ /* start a full lexical scope */ |
217 | { $$ = block_start(TRUE); } | |
218 | ; | |
219 | ||
0d863452 | 220 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 | 221 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 RH |
222 | ; |
223 | ||
5f211341 | 224 | mblock : '{' mremember stmtseq '}' |
53a7735b DM |
225 | { if (PL_parser->copline > (line_t)IVAL($1)) |
226 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
227 | $$ = block_end($2, $3); |
228 | TOKEN_GETMAD($1,$$,'{'); | |
229 | TOKEN_GETMAD($4,$$,'}'); | |
230 | } | |
55497cff | 231 | ; |
232 | ||
233 | mremember: /* NULL */ /* start a partial lexical scope */ | |
234 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
235 | ; |
236 | ||
eae48c89 | 237 | /* A sequence of statements in the program */ |
5f211341 | 238 | stmtseq : /* NULL */ |
bcabcc50 | 239 | { $$ = (OP*)NULL; } |
5f211341 | 240 | | stmtseq fullstmt |
2fcb4757 | 241 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 242 | PL_pad_reset_pending = TRUE; |
503de470 DM |
243 | if ($1 && $2) |
244 | PL_hints |= HINT_BLOCK_SCOPE; | |
245 | } | |
8d063cd8 LW |
246 | ; |
247 | ||
8e720305 Z |
248 | /* A statement in the program, including optional labels */ |
249 | fullstmt: barestmt | |
eae48c89 | 250 | { |
8e720305 Z |
251 | if($1) { |
252 | $$ = newSTATEOP(0, NULL, $1); | |
eae48c89 | 253 | } else { |
8e720305 | 254 | $$ = IF_MAD(newOP(OP_NULL, 0), NULL); |
eae48c89 Z |
255 | } |
256 | } | |
8e720305 Z |
257 | | labfullstmt |
258 | { $$ = $1; } | |
259 | ; | |
260 | ||
261 | labfullstmt: LABEL barestmt | |
262 | { | |
263 | $$ = newSTATEOP(0, PVAL($1), $2); | |
264 | TOKEN_GETMAD($1, | |
265 | $2 ? cLISTOPx($$)->op_first : $$, 'L'); | |
266 | } | |
267 | | LABEL labfullstmt | |
268 | { | |
269 | $$ = newSTATEOP(0, PVAL($1), $2); | |
270 | TOKEN_GETMAD($1, cLISTOPx($$)->op_first, 'L'); | |
271 | } | |
eae48c89 Z |
272 | ; |
273 | ||
274 | /* A bare statement, lacking label and other aspects of state op */ | |
275 | barestmt: PLUGSTMT | |
0d863452 | 276 | { $$ = $1; } |
eae48c89 Z |
277 | | PEG |
278 | { | |
279 | $$ = newOP(OP_NULL,0); | |
280 | TOKEN_GETMAD($1,$$,'p'); | |
281 | } | |
282 | | FORMAT startformsub formname block | |
f05e27e5 | 283 | { |
eae48c89 Z |
284 | CV *fmtcv = PL_compcv; |
285 | SvREFCNT_inc_simple_void(PL_compcv); | |
286 | #ifdef MAD | |
287 | $$ = newFORM($2, $3, $4); | |
288 | prepend_madprops($1->tk_mad, $$, 'F'); | |
289 | $1->tk_mad = 0; | |
290 | token_free($1); | |
291 | #else | |
292 | newFORM($2, $3, $4); | |
293 | $$ = (OP*)NULL; | |
294 | #endif | |
295 | if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) { | |
296 | SvREFCNT_inc_simple_void(fmtcv); | |
297 | pad_add_anon((SV*)fmtcv, OP_NULL); | |
f05e27e5 | 298 | } |
eae48c89 Z |
299 | } |
300 | | SUB startsub subname proto subattrlist subbody | |
301 | { | |
302 | SvREFCNT_inc_simple_void(PL_compcv); | |
303 | #ifdef MAD | |
304 | { | |
305 | OP* o = newSVOP(OP_ANONCODE, 0, | |
306 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
307 | $$ = newOP(OP_NULL,0); | |
308 | op_getmad(o,$$,'&'); | |
309 | op_getmad($3,$$,'n'); | |
310 | op_getmad($4,$$,'s'); | |
311 | op_getmad($5,$$,'a'); | |
312 | token_getmad($1,$$,'d'); | |
313 | append_madprops($6->op_madprop, $$, 0); | |
314 | $6->op_madprop = 0; | |
f05e27e5 | 315 | } |
eae48c89 Z |
316 | #else |
317 | newATTRSUB($2, $3, $4, $5, $6); | |
318 | $$ = (OP*)NULL; | |
319 | #endif | |
f05e27e5 | 320 | } |
eae48c89 | 321 | | MYSUB startsub subname proto subattrlist subbody |
f05e27e5 | 322 | { |
eae48c89 Z |
323 | /* Unimplemented "my sub foo { }" */ |
324 | SvREFCNT_inc_simple_void(PL_compcv); | |
325 | #ifdef MAD | |
326 | $$ = newMYSUB($2, $3, $4, $5, $6); | |
327 | token_getmad($1,$$,'d'); | |
328 | #else | |
329 | newMYSUB($2, $3, $4, $5, $6); | |
330 | $$ = (OP*)NULL; | |
331 | #endif | |
332 | } | |
333 | | PACKAGE WORD WORD ';' | |
5f211341 | 334 | { |
eae48c89 Z |
335 | #ifdef MAD |
336 | $$ = package($3); | |
337 | token_getmad($1,$$,'o'); | |
338 | if ($2) | |
339 | package_version($2); | |
340 | token_getmad($4,$$,';'); | |
341 | #else | |
342 | package($3); | |
343 | if ($2) | |
344 | package_version($2); | |
345 | $$ = (OP*)NULL; | |
346 | #endif | |
347 | } | |
348 | | USE startsub | |
349 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
09b1cffe | 350 | WORD WORD optlistexpr ';' |
eae48c89 Z |
351 | { |
352 | SvREFCNT_inc_simple_void(PL_compcv); | |
353 | #ifdef MAD | |
354 | $$ = utilize(IVAL($1), $2, $4, $5, $6); | |
355 | token_getmad($1,$$,'o'); | |
356 | token_getmad($7,$$,';'); | |
357 | if (PL_parser->rsfp_filters && | |
358 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
359 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); | |
360 | #else | |
361 | utilize(IVAL($1), $2, $4, $5, $6); | |
362 | $$ = (OP*)NULL; | |
363 | #endif | |
364 | } | |
365 | | IF lpar_or_qw remember mexpr ')' mblock else | |
366 | { | |
3ad73efd Z |
367 | $$ = block_end($3, |
368 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
369 | TOKEN_GETMAD($1,$$,'I'); |
370 | TOKEN_GETMAD($2,$$,'('); | |
371 | TOKEN_GETMAD($5,$$,')'); | |
372 | PL_parser->copline = (line_t)IVAL($1); | |
373 | } | |
374 | | UNLESS lpar_or_qw remember miexpr ')' mblock else | |
375 | { | |
3ad73efd Z |
376 | $$ = block_end($3, |
377 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
378 | TOKEN_GETMAD($1,$$,'I'); |
379 | TOKEN_GETMAD($2,$$,'('); | |
380 | TOKEN_GETMAD($5,$$,')'); | |
381 | PL_parser->copline = (line_t)IVAL($1); | |
382 | } | |
383 | | GIVEN lpar_or_qw remember mydefsv mexpr ')' mblock | |
384 | { | |
385 | $$ = block_end($3, | |
3ad73efd | 386 | newGIVENOP($5, op_scope($7), (PADOFFSET)$4)); |
eae48c89 Z |
387 | PL_parser->copline = (line_t)IVAL($1); |
388 | } | |
389 | | WHEN lpar_or_qw remember mexpr ')' mblock | |
3ad73efd | 390 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } |
eae48c89 | 391 | | DEFAULT block |
3ad73efd | 392 | { $$ = newWHENOP(0, op_scope($2)); } |
eae48c89 Z |
393 | | WHILE lpar_or_qw remember texpr ')' mintro mblock cont |
394 | { | |
395 | $$ = block_end($3, | |
396 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 397 | $4, $7, $8, $6)); |
eae48c89 Z |
398 | TOKEN_GETMAD($1,$$,'W'); |
399 | TOKEN_GETMAD($2,$$,'('); | |
400 | TOKEN_GETMAD($5,$$,')'); | |
401 | PL_parser->copline = (line_t)IVAL($1); | |
402 | } | |
403 | | UNTIL lpar_or_qw remember iexpr ')' mintro mblock cont | |
404 | { | |
405 | $$ = block_end($3, | |
94bf0465 Z |
406 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
407 | $4, $7, $8, $6)); | |
eae48c89 Z |
408 | TOKEN_GETMAD($1,$$,'W'); |
409 | TOKEN_GETMAD($2,$$,'('); | |
410 | TOKEN_GETMAD($5,$$,')'); | |
411 | PL_parser->copline = (line_t)IVAL($1); | |
412 | } | |
413 | | FOR lpar_or_qw remember mnexpr ';' texpr ';' mintro mnexpr ')' | |
414 | mblock | |
415 | { | |
416 | OP *initop = IF_MAD($4 ? $4 : newOP(OP_NULL, 0), $4); | |
417 | OP *forop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 418 | scalar($6), $11, $9, $8); |
eae48c89 Z |
419 | if (initop) { |
420 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
421 | op_append_elem(OP_LINESEQ, | |
422 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
423 | forop)); | |
5f211341 | 424 | } |
eae48c89 Z |
425 | DO_MAD({ forop = newUNOP(OP_NULL, 0, forop); }) |
426 | $$ = block_end($3, forop); | |
427 | TOKEN_GETMAD($1,$$,'3'); | |
428 | TOKEN_GETMAD($2,$$,'('); | |
429 | TOKEN_GETMAD($5,$$,'1'); | |
430 | TOKEN_GETMAD($7,$$,'2'); | |
431 | TOKEN_GETMAD($10,$$,')'); | |
432 | PL_parser->copline = (line_t)IVAL($1); | |
433 | } | |
434 | | FOR MY remember my_scalar lpar_or_qw mexpr ')' mblock cont | |
435 | { | |
94bf0465 | 436 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
eae48c89 Z |
437 | TOKEN_GETMAD($1,$$,'W'); |
438 | TOKEN_GETMAD($2,$$,'d'); | |
439 | TOKEN_GETMAD($5,$$,'('); | |
440 | TOKEN_GETMAD($7,$$,')'); | |
441 | PL_parser->copline = (line_t)IVAL($1); | |
442 | } | |
443 | | FOR scalar lpar_or_qw remember mexpr ')' mblock cont | |
444 | { | |
94bf0465 | 445 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 446 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
eae48c89 Z |
447 | TOKEN_GETMAD($1,$$,'W'); |
448 | TOKEN_GETMAD($3,$$,'('); | |
449 | TOKEN_GETMAD($6,$$,')'); | |
450 | PL_parser->copline = (line_t)IVAL($1); | |
451 | } | |
452 | | FOR lpar_or_qw remember mexpr ')' mblock cont | |
453 | { | |
454 | $$ = block_end($3, | |
94bf0465 | 455 | newFOROP(0, (OP*)NULL, $4, $6, $7)); |
eae48c89 Z |
456 | TOKEN_GETMAD($1,$$,'W'); |
457 | TOKEN_GETMAD($2,$$,'('); | |
458 | TOKEN_GETMAD($5,$$,')'); | |
459 | PL_parser->copline = (line_t)IVAL($1); | |
460 | } | |
461 | | block cont | |
462 | { | |
463 | /* a block is a loop that happens once */ | |
464 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 465 | (OP*)NULL, $1, $2, 0); |
eae48c89 Z |
466 | } |
467 | | PACKAGE WORD WORD '{' remember | |
468 | { | |
469 | int save_3_latefree = $3->op_latefree; | |
470 | $3->op_latefree = 1; | |
471 | package($3); | |
472 | $3->op_latefree = save_3_latefree; | |
473 | if ($2) { | |
474 | int save_2_latefree = $2->op_latefree; | |
475 | $2->op_latefree = 1; | |
476 | package_version($2); | |
477 | $2->op_latefree = save_2_latefree; | |
478 | } | |
479 | } | |
480 | stmtseq '}' | |
481 | { | |
482 | /* a block is a loop that happens once */ | |
94bf0465 | 483 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
eae48c89 Z |
484 | (OP*)NULL, block_end($5, $7), (OP*)NULL, 0); |
485 | op_free($3); | |
486 | if ($2) | |
487 | op_free($2); | |
488 | TOKEN_GETMAD($4,$$,'{'); | |
489 | TOKEN_GETMAD($8,$$,'}'); | |
490 | if (PL_parser->copline > (line_t)IVAL($4)) | |
491 | PL_parser->copline = (line_t)IVAL($4); | |
492 | } | |
493 | | sideff ';' | |
494 | { | |
495 | PL_parser->expect = XSTATE; | |
496 | $$ = $1; | |
497 | TOKEN_GETMAD($2,$$,';'); | |
498 | } | |
499 | | ';' | |
500 | { | |
501 | PL_parser->expect = XSTATE; | |
502 | $$ = IF_MAD(newOP(OP_NULL, 0), (OP*)NULL); | |
503 | TOKEN_GETMAD($1,$$,';'); | |
504 | PL_parser->copline = NOLINE; | |
5f211341 | 505 | } |
8d063cd8 LW |
506 | ; |
507 | ||
891be019 | 508 | /* An expression which may have a side-effect */ |
a687059c | 509 | sideff : error |
bcabcc50 | 510 | { $$ = (OP*)NULL; } |
a687059c | 511 | | expr |
79072805 | 512 | { $$ = $1; } |
a687059c | 513 | | expr IF expr |
f05e27e5 DM |
514 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
515 | TOKEN_GETMAD($2,$$,'i'); | |
516 | } | |
a687059c | 517 | | expr UNLESS expr |
f05e27e5 DM |
518 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
519 | TOKEN_GETMAD($2,$$,'i'); | |
520 | } | |
a687059c | 521 | | expr WHILE expr |
f05e27e5 DM |
522 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
523 | TOKEN_GETMAD($2,$$,'w'); | |
524 | } | |
55497cff | 525 | | expr UNTIL iexpr |
f05e27e5 DM |
526 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
527 | TOKEN_GETMAD($2,$$,'w'); | |
528 | } | |
ecca16b0 | 529 | | expr FOR expr |
94bf0465 | 530 | { $$ = newFOROP(0, (OP*)NULL, $3, $1, (OP*)NULL); |
eae48c89 | 531 | TOKEN_GETMAD($2,$$,'w'); |
94bf0465 | 532 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 533 | } |
f20dcd76 | 534 | | expr WHEN expr |
3ad73efd | 535 | { $$ = newWHENOP($3, op_scope($1)); } |
79072805 LW |
536 | ; |
537 | ||
891be019 | 538 | /* else and elsif blocks */ |
79072805 | 539 | else : /* NULL */ |
bcabcc50 | 540 | { $$ = (OP*)NULL; } |
55497cff | 541 | | ELSE mblock |
3ad73efd Z |
542 | { |
543 | ($2)->op_flags |= OPf_PARENS; | |
544 | $$ = op_scope($2); | |
f05e27e5 DM |
545 | TOKEN_GETMAD($1,$$,'o'); |
546 | } | |
ea25a9b2 | 547 | | ELSIF lpar_or_qw mexpr ')' mblock else |
53a7735b | 548 | { PL_parser->copline = (line_t)IVAL($1); |
3ad73efd Z |
549 | $$ = newCONDOP(0, |
550 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
551 | op_scope($5), $6); | |
552 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 DM |
553 | TOKEN_GETMAD($1,$$,'I'); |
554 | TOKEN_GETMAD($2,$$,'('); | |
555 | TOKEN_GETMAD($4,$$,')'); | |
556 | } | |
79072805 LW |
557 | ; |
558 | ||
891be019 | 559 | /* Continue blocks */ |
79072805 | 560 | cont : /* NULL */ |
bcabcc50 | 561 | { $$ = (OP*)NULL; } |
79072805 | 562 | | CONTINUE block |
3ad73efd Z |
563 | { |
564 | $$ = op_scope($2); | |
f05e27e5 DM |
565 | TOKEN_GETMAD($1,$$,'o'); |
566 | } | |
79072805 LW |
567 | ; |
568 | ||
a034e688 DM |
569 | /* determine whether there are any new my declarations */ |
570 | mintro : /* NULL */ | |
571 | { $$ = (PL_min_intro_pending && | |
572 | PL_max_intro_pending >= PL_min_intro_pending); | |
573 | intro_my(); } | |
574 | ||
891be019 | 575 | /* Normal expression */ |
8d063cd8 | 576 | nexpr : /* NULL */ |
bcabcc50 | 577 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
578 | | sideff |
579 | ; | |
580 | ||
891be019 | 581 | /* Boolean expression */ |
8d063cd8 | 582 | texpr : /* NULL means true */ |
f05e27e5 DM |
583 | { YYSTYPE tmplval; |
584 | (void)scan_num("1", &tmplval); | |
585 | $$ = tmplval.opval; } | |
8d063cd8 LW |
586 | | expr |
587 | ; | |
588 | ||
891be019 | 589 | /* Inverted boolean expression */ |
55497cff | 590 | iexpr : expr |
591 | { $$ = invert(scalar($1)); } | |
592 | ; | |
593 | ||
891be019 | 594 | /* Expression with its own lexical scope */ |
55497cff | 595 | mexpr : expr |
bbce6d69 | 596 | { $$ = $1; intro_my(); } |
597 | ; | |
598 | ||
599 | mnexpr : nexpr | |
600 | { $$ = $1; intro_my(); } | |
55497cff | 601 | ; |
602 | ||
55497cff | 603 | miexpr : iexpr |
bbce6d69 | 604 | { $$ = $1; intro_my(); } |
55497cff | 605 | ; |
606 | ||
44a8e56a | 607 | formname: WORD { $$ = $1; } |
bcabcc50 | 608 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
609 | ; |
610 | ||
fa83b5b6 | 611 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
612 | { $$ = start_subparse(FALSE, 0); |
613 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 614 | |
28757baa | 615 | ; |
616 | ||
617 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
618 | { $$ = start_subparse(FALSE, CVf_ANON); |
619 | SAVEFREESV(PL_compcv); } | |
28757baa | 620 | ; |
621 | ||
44a8e56a | 622 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
623 | { $$ = start_subparse(TRUE, 0); |
624 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 625 | ; |
626 | ||
891be019 | 627 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 628 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 629 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
630 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
631 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 632 | CvSPECIAL_on(PL_compcv); |
28757baa | 633 | $$ = $1; } |
a0d0e21e LW |
634 | ; |
635 | ||
891be019 | 636 | /* Subroutine prototype */ |
4633a7c4 | 637 | proto : /* NULL */ |
bcabcc50 | 638 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
639 | | THING |
640 | ; | |
28757baa | 641 | |
891be019 | 642 | /* Optional list of subroutine attributes */ |
09bef843 | 643 | subattrlist: /* NULL */ |
bcabcc50 | 644 | { $$ = (OP*)NULL; } |
09bef843 | 645 | | COLONATTR THING |
f05e27e5 DM |
646 | { $$ = $2; |
647 | TOKEN_GETMAD($1,$$,':'); | |
648 | } | |
09bef843 | 649 | | COLONATTR |
f05e27e5 DM |
650 | { $$ = IF_MAD( |
651 | newOP(OP_NULL, 0), | |
bcabcc50 | 652 | (OP*)NULL |
f05e27e5 DM |
653 | ); |
654 | TOKEN_GETMAD($1,$$,':'); | |
655 | } | |
09bef843 SB |
656 | ; |
657 | ||
891be019 | 658 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 659 | myattrlist: COLONATTR THING |
f05e27e5 DM |
660 | { $$ = $2; |
661 | TOKEN_GETMAD($1,$$,':'); | |
662 | } | |
09bef843 | 663 | | COLONATTR |
f05e27e5 DM |
664 | { $$ = IF_MAD( |
665 | newOP(OP_NULL, 0), | |
bcabcc50 | 666 | (OP*)NULL |
f05e27e5 DM |
667 | ); |
668 | TOKEN_GETMAD($1,$$,':'); | |
669 | } | |
09bef843 SB |
670 | ; |
671 | ||
891be019 | 672 | /* Subroutine body - either null or a block */ |
28757baa | 673 | subbody : block { $$ = $1; } |
f05e27e5 DM |
674 | | ';' { $$ = IF_MAD( |
675 | newOP(OP_NULL,0), | |
bcabcc50 | 676 | (OP*)NULL |
f05e27e5 | 677 | ); |
53a7735b | 678 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
679 | TOKEN_GETMAD($1,$$,';'); |
680 | } | |
8d063cd8 LW |
681 | ; |
682 | ||
891be019 | 683 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 684 | expr : expr ANDOP expr |
f05e27e5 DM |
685 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
686 | TOKEN_GETMAD($2,$$,'o'); | |
687 | } | |
a0d0e21e | 688 | | expr OROP expr |
f05e27e5 DM |
689 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
690 | TOKEN_GETMAD($2,$$,'o'); | |
691 | } | |
c963b151 | 692 | | expr DOROP expr |
f05e27e5 DM |
693 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
694 | TOKEN_GETMAD($2,$$,'o'); | |
695 | } | |
09b1cffe | 696 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
697 | ; |
698 | ||
891be019 | 699 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 700 | listexpr: listexpr ',' |
f05e27e5 DM |
701 | { |
702 | #ifdef MAD | |
703 | OP* op = newNULLLIST(); | |
704 | token_getmad($2,op,','); | |
2fcb4757 | 705 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
706 | #else |
707 | $$ = $1; | |
708 | #endif | |
709 | } | |
09b1cffe | 710 | | listexpr ',' term |
f05e27e5 | 711 | { |
29522234 | 712 | OP* term = $3; |
f05e27e5 | 713 | DO_MAD( |
29522234 DM |
714 | term = newUNOP(OP_NULL, 0, term); |
715 | token_getmad($2,term,','); | |
f05e27e5 | 716 | ) |
2fcb4757 | 717 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 718 | } |
fad39ff1 | 719 | | term %prec PREC_LOW |
8d063cd8 LW |
720 | ; |
721 | ||
891be019 | 722 | /* List operators */ |
09b1cffe | 723 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 724 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 725 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
726 | TOKEN_GETMAD($1,$$,'o'); |
727 | } | |
891be019 | 728 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 729 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 730 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
731 | TOKEN_GETMAD($1,$$,'o'); |
732 | TOKEN_GETMAD($2,$$,'('); | |
733 | TOKEN_GETMAD($5,$$,')'); | |
734 | } | |
09b1cffe | 735 | | term ARROW method lpar_or_qw optexpr ')' /* $foo->bar(list) */ |
4633a7c4 | 736 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
737 | op_append_elem(OP_LIST, |
738 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
739 | newUNOP(OP_METHOD, 0, $3))); |
740 | TOKEN_GETMAD($2,$$,'A'); | |
741 | TOKEN_GETMAD($4,$$,'('); | |
742 | TOKEN_GETMAD($6,$$,')'); | |
743 | } | |
891be019 | 744 | | term ARROW method /* $foo->bar */ |
b1524f17 | 745 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 746 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
747 | newUNOP(OP_METHOD, 0, $3))); |
748 | TOKEN_GETMAD($2,$$,'A'); | |
749 | } | |
09b1cffe | 750 | | METHOD indirob optlistexpr /* new Class @args */ |
4633a7c4 | 751 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
752 | op_append_elem(OP_LIST, |
753 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
754 | newUNOP(OP_METHOD, 0, $1))); |
755 | } | |
09b1cffe | 756 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
4633a7c4 | 757 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
758 | op_append_elem(OP_LIST, |
759 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
760 | newUNOP(OP_METHOD, 0, $1))); |
761 | TOKEN_GETMAD($3,$$,'('); | |
762 | TOKEN_GETMAD($5,$$,')'); | |
763 | } | |
09b1cffe | 764 | | LSTOP optlistexpr /* print @args */ |
f05e27e5 DM |
765 | { $$ = convert(IVAL($1), 0, $2); |
766 | TOKEN_GETMAD($1,$$,'o'); | |
767 | } | |
09b1cffe | 768 | | FUNC '(' optexpr ')' /* print (@args) */ |
f05e27e5 DM |
769 | { $$ = convert(IVAL($1), 0, $3); |
770 | TOKEN_GETMAD($1,$$,'o'); | |
771 | TOKEN_GETMAD($2,$$,'('); | |
772 | TOKEN_GETMAD($4,$$,')'); | |
773 | } | |
718a7425 | 774 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 775 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 776 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
09b1cffe | 777 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 778 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
779 | op_append_elem(OP_LIST, |
780 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 781 | } |
a687059c LW |
782 | ; |
783 | ||
891be019 | 784 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
785 | method : METHOD |
786 | | scalar | |
787 | ; | |
788 | ||
891be019 SC |
789 | /* Some kind of subscripted expression */ |
790 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
791 | /* In this and all the hash accessors, ';' is | |
792 | * provided by the tokeniser */ | |
264e1af3 | 793 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 794 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
795 | TOKEN_GETMAD($2,$$,'{'); |
796 | TOKEN_GETMAD($4,$$,';'); | |
797 | TOKEN_GETMAD($5,$$,'}'); | |
798 | } | |
891be019 | 799 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
800 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
801 | TOKEN_GETMAD($2,$$,'['); | |
802 | TOKEN_GETMAD($4,$$,']'); | |
803 | } | |
891be019 | 804 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
805 | { $$ = newBINOP(OP_AELEM, 0, |
806 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
807 | scalar($4)); |
808 | TOKEN_GETMAD($2,$$,'a'); | |
809 | TOKEN_GETMAD($3,$$,'['); | |
810 | TOKEN_GETMAD($5,$$,']'); | |
811 | } | |
891be019 | 812 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
813 | { $$ = newBINOP(OP_AELEM, 0, |
814 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
815 | scalar($3)); |
816 | TOKEN_GETMAD($2,$$,'['); | |
817 | TOKEN_GETMAD($4,$$,']'); | |
818 | } | |
891be019 | 819 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 | 820 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 821 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
822 | TOKEN_GETMAD($2,$$,'{'); |
823 | TOKEN_GETMAD($4,$$,';'); | |
824 | TOKEN_GETMAD($5,$$,'}'); | |
825 | } | |
891be019 | 826 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
827 | { $$ = newBINOP(OP_HELEM, 0, |
828 | ref(newHVREF($1),OP_RV2HV), | |
829 | jmaybe($4)); | |
53a7735b | 830 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
831 | TOKEN_GETMAD($2,$$,'a'); |
832 | TOKEN_GETMAD($3,$$,'{'); | |
833 | TOKEN_GETMAD($5,$$,';'); | |
834 | TOKEN_GETMAD($6,$$,'}'); | |
835 | } | |
891be019 | 836 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
837 | { $$ = newBINOP(OP_HELEM, 0, |
838 | ref(newHVREF($1),OP_RV2HV), | |
839 | jmaybe($3)); | |
53a7735b | 840 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
841 | TOKEN_GETMAD($2,$$,'{'); |
842 | TOKEN_GETMAD($4,$$,';'); | |
843 | TOKEN_GETMAD($5,$$,'}'); | |
844 | } | |
891be019 | 845 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 846 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
847 | newCVREF(0, scalar($1))); |
848 | TOKEN_GETMAD($2,$$,'a'); | |
849 | TOKEN_GETMAD($3,$$,'('); | |
850 | TOKEN_GETMAD($4,$$,')'); | |
851 | } | |
891be019 | 852 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 853 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 854 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
855 | newCVREF(0, scalar($1)))); |
856 | TOKEN_GETMAD($2,$$,'a'); | |
857 | TOKEN_GETMAD($3,$$,'('); | |
858 | TOKEN_GETMAD($5,$$,')'); | |
859 | } | |
fad39ff1 | 860 | |
ea25a9b2 | 861 | | subscripted lpar_or_qw expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 862 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 863 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
864 | newCVREF(0, scalar($1)))); |
865 | TOKEN_GETMAD($2,$$,'('); | |
866 | TOKEN_GETMAD($4,$$,')'); | |
867 | } | |
ea25a9b2 | 868 | | subscripted lpar_or_qw ')' /* $foo->{bar}->() */ |
fad39ff1 | 869 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
870 | newCVREF(0, scalar($1))); |
871 | TOKEN_GETMAD($2,$$,'('); | |
872 | TOKEN_GETMAD($3,$$,')'); | |
873 | } | |
9a9798c2 | 874 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
875 | { $$ = newSLICEOP(0, $5, $2); |
876 | TOKEN_GETMAD($1,$$,'('); | |
877 | TOKEN_GETMAD($3,$$,')'); | |
878 | TOKEN_GETMAD($4,$$,'['); | |
879 | TOKEN_GETMAD($6,$$,']'); | |
880 | } | |
ea25a9b2 Z |
881 | | QWLIST '[' expr ']' /* list literal slice */ |
882 | { $$ = newSLICEOP(0, $3, $1); | |
883 | TOKEN_GETMAD($2,$$,'['); | |
884 | TOKEN_GETMAD($4,$$,']'); | |
885 | } | |
9a9798c2 | 886 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 887 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
888 | TOKEN_GETMAD($1,$$,'('); |
889 | TOKEN_GETMAD($2,$$,')'); | |
890 | TOKEN_GETMAD($3,$$,'['); | |
891 | TOKEN_GETMAD($5,$$,']'); | |
892 | } | |
891be019 | 893 | ; |
fad39ff1 | 894 | |
891be019 | 895 | /* Binary operators between terms */ |
f05e27e5 DM |
896 | termbinop: term ASSIGNOP term /* $x = $y */ |
897 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
898 | TOKEN_GETMAD($2,$$,'o'); | |
899 | } | |
891be019 | 900 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
901 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
902 | TOKEN_GETMAD($2,$$,'o'); | |
903 | } | |
891be019 | 904 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 905 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 906 | scalar($1); |
f05e27e5 DM |
907 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
908 | TOKEN_GETMAD($2,$$,'o'); | |
909 | } | |
891be019 | 910 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
911 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
912 | TOKEN_GETMAD($2,$$,'o'); | |
913 | } | |
891be019 | 914 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
915 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
916 | TOKEN_GETMAD($2,$$,'o'); | |
917 | } | |
891be019 | 918 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
919 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
920 | TOKEN_GETMAD($2,$$,'o'); | |
921 | } | |
891be019 | 922 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
923 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
924 | TOKEN_GETMAD($2,$$,'o'); | |
925 | } | |
891be019 | 926 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
927 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
928 | TOKEN_GETMAD($2,$$,'o'); | |
929 | } | |
891be019 | 930 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
931 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
932 | TOKEN_GETMAD($2,$$,'o'); | |
933 | } | |
891be019 | 934 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
935 | { |
936 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 937 | DO_MAD({ |
f05e27e5 DM |
938 | UNOP *op; |
939 | op = (UNOP*)$$; | |
940 | op = (UNOP*)op->op_first; /* get to flop */ | |
941 | op = (UNOP*)op->op_first; /* get to flip */ | |
942 | op = (UNOP*)op->op_first; /* get to range */ | |
943 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 944 | }) |
f05e27e5 | 945 | } |
891be019 | 946 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
947 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
948 | TOKEN_GETMAD($2,$$,'o'); | |
949 | } | |
891be019 | 950 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
951 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
952 | TOKEN_GETMAD($2,$$,'o'); | |
953 | } | |
c963b151 | 954 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
955 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
956 | TOKEN_GETMAD($2,$$,'o'); | |
957 | } | |
891be019 | 958 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
959 | { $$ = bind_match(IVAL($2), $1, $3); |
960 | TOKEN_GETMAD($2, | |
961 | ($$->op_type == OP_NOT | |
962 | ? ((UNOP*)$$)->op_first : $$), | |
963 | '~'); | |
964 | } | |
891be019 | 965 | ; |
8d063cd8 | 966 | |
891be019 SC |
967 | /* Unary operators and terms */ |
968 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
969 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
970 | TOKEN_GETMAD($1,$$,'o'); | |
971 | } | |
891be019 | 972 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
973 | { $$ = IF_MAD( |
974 | newUNOP(OP_NULL, 0, $2), | |
975 | $2 | |
976 | ); | |
977 | TOKEN_GETMAD($1,$$,'+'); | |
978 | } | |
891be019 | 979 | | '!' term /* !$x */ |
f05e27e5 DM |
980 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
981 | TOKEN_GETMAD($1,$$,'o'); | |
982 | } | |
891be019 | 983 | | '~' term /* ~$x */ |
f05e27e5 DM |
984 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
985 | TOKEN_GETMAD($1,$$,'o'); | |
986 | } | |
891be019 | 987 | | term POSTINC /* $x++ */ |
79072805 | 988 | { $$ = newUNOP(OP_POSTINC, 0, |
3ad73efd | 989 | op_lvalue(scalar($1), OP_POSTINC)); |
f05e27e5 DM |
990 | TOKEN_GETMAD($2,$$,'o'); |
991 | } | |
891be019 | 992 | | term POSTDEC /* $x-- */ |
79072805 | 993 | { $$ = newUNOP(OP_POSTDEC, 0, |
3ad73efd | 994 | op_lvalue(scalar($1), OP_POSTDEC)); |
f05e27e5 DM |
995 | TOKEN_GETMAD($2,$$,'o'); |
996 | } | |
891be019 | 997 | | PREINC term /* ++$x */ |
79072805 | 998 | { $$ = newUNOP(OP_PREINC, 0, |
3ad73efd | 999 | op_lvalue(scalar($2), OP_PREINC)); |
f05e27e5 DM |
1000 | TOKEN_GETMAD($1,$$,'o'); |
1001 | } | |
891be019 | 1002 | | PREDEC term /* --$x */ |
79072805 | 1003 | { $$ = newUNOP(OP_PREDEC, 0, |
3ad73efd | 1004 | op_lvalue(scalar($2), OP_PREDEC)); |
f05e27e5 DM |
1005 | TOKEN_GETMAD($1,$$,'o'); |
1006 | } | |
891be019 SC |
1007 | |
1008 | ; | |
1009 | ||
1010 | /* Constructors for anonymous data */ | |
1011 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1012 | { $$ = newANONLIST($2); |
1013 | TOKEN_GETMAD($1,$$,'['); | |
1014 | TOKEN_GETMAD($3,$$,']'); | |
1015 | } | |
891be019 | 1016 | | '[' ']' |
bcabcc50 | 1017 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1018 | TOKEN_GETMAD($1,$$,'['); |
1019 | TOKEN_GETMAD($2,$$,']'); | |
1020 | } | |
891be019 | 1021 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1022 | { $$ = newANONHASH($2); |
1023 | TOKEN_GETMAD($1,$$,'{'); | |
1024 | TOKEN_GETMAD($3,$$,';'); | |
1025 | TOKEN_GETMAD($4,$$,'}'); | |
1026 | } | |
891be019 | 1027 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1028 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1029 | TOKEN_GETMAD($1,$$,'{'); |
1030 | TOKEN_GETMAD($2,$$,';'); | |
1031 | TOKEN_GETMAD($3,$$,'}'); | |
1032 | } | |
718a7425 | 1033 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1034 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1035 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1036 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1037 | OP_GETMAD($3,$$,'s'); |
1038 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1039 | } |
891be019 SC |
1040 | |
1041 | ; | |
1042 | ||
1043 | /* Things called with "do" */ | |
1044 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1045 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1046 | TOKEN_GETMAD($1,$$,'o'); |
1047 | } | |
891be019 | 1048 | | DO block %prec '(' /* do { code */ |
3ad73efd | 1049 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2)); |
f05e27e5 DM |
1050 | TOKEN_GETMAD($1,$$,'D'); |
1051 | } | |
ea25a9b2 | 1052 | | DO WORD lpar_or_qw ')' /* do somesub() */ |
891be019 SC |
1053 | { $$ = newUNOP(OP_ENTERSUB, |
1054 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1055 | op_prepend_elem(OP_LIST, |
891be019 SC |
1056 | scalar(newCVREF( |
1057 | (OPpENTERSUB_AMPER<<8), | |
1058 | scalar($2) | |
bcabcc50 | 1059 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1060 | TOKEN_GETMAD($1,$$,'o'); |
1061 | TOKEN_GETMAD($3,$$,'('); | |
1062 | TOKEN_GETMAD($4,$$,')'); | |
1063 | } | |
ea25a9b2 | 1064 | | DO WORD lpar_or_qw expr ')' /* do somesub(@args) */ |
891be019 SC |
1065 | { $$ = newUNOP(OP_ENTERSUB, |
1066 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1067 | op_append_elem(OP_LIST, |
891be019 SC |
1068 | $4, |
1069 | scalar(newCVREF( | |
1070 | (OPpENTERSUB_AMPER<<8), | |
1071 | scalar($2) | |
f05e27e5 DM |
1072 | )))); dep(); |
1073 | TOKEN_GETMAD($1,$$,'o'); | |
1074 | TOKEN_GETMAD($3,$$,'('); | |
1075 | TOKEN_GETMAD($5,$$,')'); | |
1076 | } | |
ea25a9b2 | 1077 | | DO scalar lpar_or_qw ')' /* do $subref () */ |
891be019 | 1078 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1079 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1080 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1081 | TOKEN_GETMAD($1,$$,'o'); |
1082 | TOKEN_GETMAD($3,$$,'('); | |
1083 | TOKEN_GETMAD($4,$$,')'); | |
1084 | } | |
ea25a9b2 | 1085 | | DO scalar lpar_or_qw expr ')' /* do $subref (@args) */ |
891be019 | 1086 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1087 | op_prepend_elem(OP_LIST, |
891be019 | 1088 | $4, |
f05e27e5 DM |
1089 | scalar(newCVREF(0,scalar($2))))); dep(); |
1090 | TOKEN_GETMAD($1,$$,'o'); | |
1091 | TOKEN_GETMAD($3,$$,'('); | |
1092 | TOKEN_GETMAD($5,$$,')'); | |
1093 | } | |
891be019 SC |
1094 | |
1095 | ; | |
1096 | ||
1097 | term : termbinop | |
1098 | | termunop | |
1099 | | anonymous | |
1100 | | termdo | |
e9bdcc27 | 1101 | | term '?' term ':' term |
f05e27e5 DM |
1102 | { $$ = newCONDOP(0, $1, $3, $5); |
1103 | TOKEN_GETMAD($2,$$,'?'); | |
1104 | TOKEN_GETMAD($4,$$,':'); | |
1105 | } | |
891be019 | 1106 | | REFGEN term /* \$x, \@y, \%z */ |
3ad73efd | 1107 | { $$ = newUNOP(OP_REFGEN, 0, op_lvalue($2,OP_REFGEN)); |
f05e27e5 DM |
1108 | TOKEN_GETMAD($1,$$,'o'); |
1109 | } | |
09bef843 SB |
1110 | | myattrterm %prec UNIOP |
1111 | { $$ = $1; } | |
1112 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1113 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1114 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1115 | } |
a0d0e21e | 1116 | | '(' expr ')' |
f05e27e5 DM |
1117 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1118 | TOKEN_GETMAD($1,$$,'('); | |
1119 | TOKEN_GETMAD($3,$$,')'); | |
1120 | } | |
ea25a9b2 Z |
1121 | | QWLIST |
1122 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1123 | | '(' ')' |
f05e27e5 DM |
1124 | { $$ = sawparens(newNULLLIST()); |
1125 | TOKEN_GETMAD($1,$$,'('); | |
1126 | TOKEN_GETMAD($2,$$,')'); | |
1127 | } | |
79072805 | 1128 | | scalar %prec '(' |
8d063cd8 | 1129 | { $$ = $1; } |
79072805 | 1130 | | star %prec '(' |
8d063cd8 | 1131 | { $$ = $1; } |
79072805 | 1132 | | hsh %prec '(' |
8d063cd8 | 1133 | { $$ = $1; } |
79072805 | 1134 | | ary %prec '(' |
8d063cd8 | 1135 | { $$ = $1; } |
891be019 | 1136 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1137 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1138 | | subscripted |
1139 | { $$ = $1; } | |
891be019 | 1140 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1141 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1142 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1143 | newLISTOP(OP_ASLICE, 0, |
1144 | list($3), | |
f05e27e5 DM |
1145 | ref($1, OP_ASLICE))); |
1146 | TOKEN_GETMAD($2,$$,'['); | |
1147 | TOKEN_GETMAD($4,$$,']'); | |
1148 | } | |
891be019 | 1149 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1150 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1151 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1152 | newLISTOP(OP_HSLICE, 0, |
1153 | list($3), | |
a0d0e21e | 1154 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1155 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1156 | TOKEN_GETMAD($2,$$,'{'); |
1157 | TOKEN_GETMAD($4,$$,';'); | |
1158 | TOKEN_GETMAD($5,$$,'}'); | |
1159 | } | |
79072805 LW |
1160 | | THING %prec '(' |
1161 | { $$ = $1; } | |
891be019 | 1162 | | amper /* &foo; */ |
c07a80fd | 1163 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ea25a9b2 | 1164 | | amper lpar_or_qw ')' /* &foo() */ |
f05e27e5 DM |
1165 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1166 | TOKEN_GETMAD($2,$$,'('); | |
1167 | TOKEN_GETMAD($3,$$,')'); | |
1168 | } | |
ea25a9b2 | 1169 | | amper lpar_or_qw expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1170 | { |
1171 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1172 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1173 | DO_MAD({ |
f05e27e5 DM |
1174 | OP* op = $$; |
1175 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1176 | op = (OP*)op->op_madprop->mad_val; | |
1177 | } | |
1178 | token_getmad($2,op,'('); | |
1179 | token_getmad($4,op,')'); | |
035e2bcc | 1180 | }) |
f05e27e5 | 1181 | } |
09b1cffe | 1182 | | NOAMP WORD optlistexpr /* foo(@args) */ |
a0d0e21e | 1183 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1184 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1185 | TOKEN_GETMAD($1,$$,'o'); |
1186 | } | |
891be019 | 1187 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1188 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1189 | PL_hints |= HINT_BLOCK_SCOPE; | |
1190 | TOKEN_GETMAD($1,$$,'o'); | |
1191 | } | |
a0d0e21e | 1192 | | LOOPEX term |
f05e27e5 DM |
1193 | { $$ = newLOOPEX(IVAL($1),$2); |
1194 | TOKEN_GETMAD($1,$$,'o'); | |
1195 | } | |
09b1cffe | 1196 | | NOTOP listexpr /* not $foo */ |
f05e27e5 DM |
1197 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1198 | TOKEN_GETMAD($1,$$,'o'); | |
1199 | } | |
891be019 | 1200 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1201 | { $$ = newOP(IVAL($1), 0); |
1202 | TOKEN_GETMAD($1,$$,'o'); | |
1203 | } | |
1204 | | UNIOP block /* eval { foo }* */ | |
1205 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1206 | TOKEN_GETMAD($1,$$,'o'); | |
1207 | } | |
891be019 | 1208 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1209 | { $$ = newUNOP(IVAL($1), 0, $2); |
1210 | TOKEN_GETMAD($1,$$,'o'); | |
1211 | } | |
d2fdf8fd RGS |
1212 | | REQUIRE /* require, $_ implied */ |
1213 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1214 | TOKEN_GETMAD($1,$$,'o'); | |
1215 | } | |
1216 | | REQUIRE term /* require Foo */ | |
1217 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1218 | TOKEN_GETMAD($1,$$,'o'); | |
1219 | } | |
3cd0a11a RGS |
1220 | | UNIOPSUB |
1221 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1222 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1223 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1224 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1225 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1226 | { $$ = newOP(IVAL($1), 0); |
1227 | TOKEN_GETMAD($1,$$,'o'); | |
1228 | } | |
ae986130 | 1229 | | FUNC0 '(' ')' |
f05e27e5 DM |
1230 | { $$ = newOP(IVAL($1), 0); |
1231 | TOKEN_GETMAD($1,$$,'o'); | |
1232 | TOKEN_GETMAD($2,$$,'('); | |
1233 | TOKEN_GETMAD($3,$$,')'); | |
1234 | } | |
891be019 | 1235 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1236 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1237 | scalar($1)); } |
891be019 | 1238 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1239 | { $$ = (IVAL($1) == OP_NOT) |
1240 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1241 | : newOP(IVAL($1), OPf_SPECIAL); | |
1242 | ||
1243 | TOKEN_GETMAD($1,$$,'o'); | |
1244 | TOKEN_GETMAD($2,$$,'('); | |
1245 | TOKEN_GETMAD($3,$$,')'); | |
1246 | } | |
891be019 | 1247 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1248 | { $$ = newUNOP(IVAL($1), 0, $3); |
1249 | TOKEN_GETMAD($1,$$,'o'); | |
1250 | TOKEN_GETMAD($2,$$,'('); | |
1251 | TOKEN_GETMAD($4,$$,')'); | |
1252 | } | |
09b1cffe | 1253 | | PMFUNC '(' listexpr ')' /* m//, s///, tr/// */ |
f05e27e5 DM |
1254 | { $$ = pmruntime($1, $3, 1); |
1255 | TOKEN_GETMAD($2,$$,'('); | |
1256 | TOKEN_GETMAD($4,$$,')'); | |
1257 | } | |
79072805 | 1258 | | WORD |
378cc40b | 1259 | | listop |
be25f609 | 1260 | | YADAYADA |
1261 | { | |
1262 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1263 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1264 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1265 | } |
88e1f1a2 | 1266 | | PLUGEXPR |
8d063cd8 LW |
1267 | ; |
1268 | ||
891be019 | 1269 | /* "my" declarations, with optional attributes */ |
09bef843 | 1270 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1271 | { $$ = my_attrs($2,$3); |
1272 | DO_MAD( | |
1273 | token_getmad($1,$$,'d'); | |
1274 | append_madprops($3->op_madprop, $$, 'a'); | |
1275 | $3->op_madprop = 0; | |
1276 | ) | |
1277 | } | |
09bef843 | 1278 | | MY myterm |
f05e27e5 DM |
1279 | { $$ = localize($2,IVAL($1)); |
1280 | TOKEN_GETMAD($1,$$,'d'); | |
1281 | } | |
09bef843 SB |
1282 | ; |
1283 | ||
891be019 | 1284 | /* Things that can be "my"'d */ |
09bef843 | 1285 | myterm : '(' expr ')' |
f05e27e5 DM |
1286 | { $$ = sawparens($2); |
1287 | TOKEN_GETMAD($1,$$,'('); | |
1288 | TOKEN_GETMAD($3,$$,')'); | |
1289 | } | |
09bef843 | 1290 | | '(' ')' |
f05e27e5 DM |
1291 | { $$ = sawparens(newNULLLIST()); |
1292 | TOKEN_GETMAD($1,$$,'('); | |
1293 | TOKEN_GETMAD($2,$$,')'); | |
1294 | } | |
09bef843 SB |
1295 | | scalar %prec '(' |
1296 | { $$ = $1; } | |
1297 | | hsh %prec '(' | |
1298 | { $$ = $1; } | |
1299 | | ary %prec '(' | |
1300 | { $$ = $1; } | |
1301 | ; | |
1302 | ||
891be019 | 1303 | /* Basic list expressions */ |
09b1cffe | 1304 | optlistexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1305 | { $$ = (OP*)NULL; } |
09b1cffe | 1306 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1307 | { $$ = $1; } |
1308 | ; | |
1309 | ||
09b1cffe | 1310 | optexpr: /* NULL */ |
bcabcc50 | 1311 | { $$ = (OP*)NULL; } |
79072805 LW |
1312 | | expr |
1313 | { $$ = $1; } | |
1314 | ; | |
1315 | ||
ea25a9b2 Z |
1316 | lpar_or_qw: '(' |
1317 | { $$ = $1; } | |
1318 | | QWLIST | |
f7e3d326 | 1319 | { munge_qwlist_to_paren_list($1); } |
ea25a9b2 Z |
1320 | '(' |
1321 | { $$ = $3; } | |
1322 | ; | |
1323 | ||
891be019 SC |
1324 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1325 | lexical */ | |
55497cff | 1326 | my_scalar: scalar |
12bd6ede | 1327 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1328 | ; |
1329 | ||
79072805 | 1330 | amper : '&' indirob |
f05e27e5 DM |
1331 | { $$ = newCVREF(IVAL($1),$2); |
1332 | TOKEN_GETMAD($1,$$,'&'); | |
1333 | } | |
a687059c LW |
1334 | ; |
1335 | ||
79072805 | 1336 | scalar : '$' indirob |
f05e27e5 DM |
1337 | { $$ = newSVREF($2); |
1338 | TOKEN_GETMAD($1,$$,'$'); | |
1339 | } | |
a687059c LW |
1340 | ; |
1341 | ||
79072805 | 1342 | ary : '@' indirob |
f05e27e5 DM |
1343 | { $$ = newAVREF($2); |
1344 | TOKEN_GETMAD($1,$$,'@'); | |
1345 | } | |
79072805 LW |
1346 | ; |
1347 | ||
1348 | hsh : '%' indirob | |
f05e27e5 DM |
1349 | { $$ = newHVREF($2); |
1350 | TOKEN_GETMAD($1,$$,'%'); | |
1351 | } | |
79072805 LW |
1352 | ; |
1353 | ||
1354 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1355 | { $$ = newAVREF($2); |
1356 | TOKEN_GETMAD($1,$$,'l'); | |
1357 | } | |
79072805 LW |
1358 | ; |
1359 | ||
1360 | star : '*' indirob | |
f05e27e5 DM |
1361 | { $$ = newGVREF(0,$2); |
1362 | TOKEN_GETMAD($1,$$,'*'); | |
1363 | } | |
79072805 LW |
1364 | ; |
1365 | ||
891be019 | 1366 | /* Indirect objects */ |
79072805 LW |
1367 | indirob : WORD |
1368 | { $$ = scalar($1); } | |
fad39ff1 | 1369 | | scalar %prec PREC_LOW |
f05e27e5 | 1370 | { $$ = scalar($1); } |
79072805 | 1371 | | block |
3ad73efd | 1372 | { $$ = op_scope($1); } |
79072805 | 1373 | |
93a17b20 LW |
1374 | | PRIVATEREF |
1375 | { $$ = $1; } | |
8d063cd8 | 1376 | ; |