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 $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
78cdf107 | 72 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 73 | |
123d08c9 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
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 | |
87 | %token <i_tkval> LOCAL MY MYSUB REQUIRE | |
88 | %token <i_tkval> COLONATTR | |
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? */ | |
93 | %type <ival> mydefsv mintro | |
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 |
09b1cffe Z |
97 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr miexpr |
98 | %type <opval> optlistexpr optexpr indirob listop method | |
44a8e56a | 99 | %type <opval> formname subname proto subbody cont my_scalar |
f05e27e5 | 100 | %type <opval> subattrlist myattrlist myattrterm myterm |
891be019 | 101 | %type <opval> termbinop termunop anonymous termdo |
79072805 | 102 | |
123d08c9 | 103 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 SM |
104 | %nonassoc LOOPEX |
105 | ||
123d08c9 DM |
106 | %left <i_tkval> OROP DOROP |
107 | %left <i_tkval> ANDOP | |
108 | %right <i_tkval> NOTOP | |
36477c24 | 109 | %nonassoc LSTOP LSTOPSUB |
123d08c9 DM |
110 | %left <i_tkval> ',' |
111 | %right <i_tkval> ASSIGNOP | |
112 | %right <i_tkval> '?' ':' | |
be25f609 | 113 | %nonassoc DOTDOT YADAYADA |
123d08c9 DM |
114 | %left <i_tkval> OROR DORDOR |
115 | %left <i_tkval> ANDAND | |
116 | %left <i_tkval> BITOROP | |
117 | %left <i_tkval> BITANDOP | |
a687059c LW |
118 | %nonassoc EQOP |
119 | %nonassoc RELOP | |
36477c24 | 120 | %nonassoc UNIOP UNIOPSUB |
20515881 | 121 | %nonassoc REQUIRE |
123d08c9 | 122 | %left <i_tkval> SHIFTOP |
a687059c LW |
123 | %left ADDOP |
124 | %left MULOP | |
123d08c9 DM |
125 | %left <i_tkval> MATCHOP |
126 | %right <i_tkval> '!' '~' UMINUS REFGEN | |
127 | %right <i_tkval> POWOP | |
128 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC | |
129 | %left <i_tkval> ARROW | |
130 | %nonassoc <i_tkval> ')' | |
131 | %left <i_tkval> '(' | |
fad39ff1 | 132 | %left '[' '{' |
8d063cd8 | 133 | |
123d08c9 | 134 | %token <i_tkval> PEG |
7f46837f | 135 | |
8d063cd8 LW |
136 | %% /* RULES */ |
137 | ||
28ac2b49 | 138 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
139 | grammar : GRAMPROG |
140 | { | |
141 | PL_parser->expect = XSTATE; | |
142 | } | |
143 | remember stmtseq | |
144 | { | |
145 | newPROG(block_end($3,$4)); | |
146 | $$ = 0; | |
147 | } | |
78cdf107 Z |
148 | | GRAMEXPR |
149 | { | |
150 | parser->expect = XTERM; | |
151 | } | |
09b1cffe | 152 | optexpr |
78cdf107 Z |
153 | { |
154 | PL_eval_root = $3; | |
155 | $$ = 0; | |
156 | } | |
e53d8f76 Z |
157 | | GRAMBLOCK |
158 | { | |
159 | parser->expect = XBLOCK; | |
160 | } | |
161 | block | |
162 | { | |
5f211341 | 163 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
164 | PL_eval_root = $3; |
165 | $$ = 0; | |
166 | yyunlex(); | |
167 | parser->yychar = YYEOF; | |
168 | } | |
169 | | GRAMBARESTMT | |
170 | { | |
171 | parser->expect = XSTATE; | |
172 | } | |
173 | barestmt | |
174 | { | |
175 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
176 | PL_eval_root = $3; |
177 | $$ = 0; | |
178 | yyunlex(); | |
179 | parser->yychar = YYEOF; | |
180 | } | |
9eb5c532 | 181 | | GRAMFULLSTMT |
28ac2b49 | 182 | { |
9eb5c532 Z |
183 | parser->expect = XSTATE; |
184 | } | |
185 | fullstmt | |
186 | { | |
5f211341 | 187 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 188 | PL_eval_root = $3; |
28ac2b49 Z |
189 | $$ = 0; |
190 | yyunlex(); | |
191 | parser->yychar = YYEOF; | |
192 | } | |
07ffcb73 Z |
193 | | GRAMSTMTSEQ |
194 | { | |
195 | parser->expect = XSTATE; | |
196 | } | |
5f211341 | 197 | stmtseq |
07ffcb73 Z |
198 | { |
199 | PL_eval_root = $3; | |
200 | $$ = 0; | |
201 | } | |
202 | ; | |
203 | ||
891be019 | 204 | /* An ordinary block */ |
5f211341 | 205 | block : '{' remember stmtseq '}' |
53a7735b DM |
206 | { if (PL_parser->copline > (line_t)IVAL($1)) |
207 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
208 | $$ = block_end($2, $3); |
209 | TOKEN_GETMAD($1,$$,'{'); | |
210 | TOKEN_GETMAD($4,$$,'}'); | |
211 | } | |
a0d0e21e LW |
212 | ; |
213 | ||
55497cff | 214 | remember: /* NULL */ /* start a full lexical scope */ |
215 | { $$ = block_start(TRUE); } | |
216 | ; | |
217 | ||
0d863452 | 218 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 | 219 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 RH |
220 | ; |
221 | ||
5f211341 | 222 | mblock : '{' mremember stmtseq '}' |
53a7735b DM |
223 | { if (PL_parser->copline > (line_t)IVAL($1)) |
224 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
225 | $$ = block_end($2, $3); |
226 | TOKEN_GETMAD($1,$$,'{'); | |
227 | TOKEN_GETMAD($4,$$,'}'); | |
228 | } | |
55497cff | 229 | ; |
230 | ||
231 | mremember: /* NULL */ /* start a partial lexical scope */ | |
232 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
233 | ; |
234 | ||
eae48c89 | 235 | /* A sequence of statements in the program */ |
5f211341 | 236 | stmtseq : /* NULL */ |
bcabcc50 | 237 | { $$ = (OP*)NULL; } |
5f211341 | 238 | | stmtseq fullstmt |
2fcb4757 | 239 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 240 | PL_pad_reset_pending = TRUE; |
503de470 DM |
241 | if ($1 && $2) |
242 | PL_hints |= HINT_BLOCK_SCOPE; | |
243 | } | |
8d063cd8 LW |
244 | ; |
245 | ||
8e720305 Z |
246 | /* A statement in the program, including optional labels */ |
247 | fullstmt: barestmt | |
eae48c89 | 248 | { |
8e720305 Z |
249 | if($1) { |
250 | $$ = newSTATEOP(0, NULL, $1); | |
eae48c89 | 251 | } else { |
8e720305 | 252 | $$ = IF_MAD(newOP(OP_NULL, 0), NULL); |
eae48c89 Z |
253 | } |
254 | } | |
8e720305 Z |
255 | | labfullstmt |
256 | { $$ = $1; } | |
257 | ; | |
258 | ||
259 | labfullstmt: LABEL barestmt | |
260 | { | |
5db1eb8d BF |
261 | $$ = newSTATEOP(SvUTF8(((SVOP*)$1)->op_sv), |
262 | savepv(SvPVX(((SVOP*)$1)->op_sv)), $2); | |
8e720305 Z |
263 | TOKEN_GETMAD($1, |
264 | $2 ? cLISTOPx($$)->op_first : $$, 'L'); | |
265 | } | |
266 | | LABEL labfullstmt | |
267 | { | |
5db1eb8d BF |
268 | $$ = newSTATEOP(SvUTF8(((SVOP*)$1)->op_sv), |
269 | savepv(SvPVX(((SVOP*)$1)->op_sv)), $2); | |
8e720305 Z |
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 | $$ = (OP*)NULL; | |
294 | #endif | |
4a273b91 | 295 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
eae48c89 | 296 | SvREFCNT_inc_simple_void(fmtcv); |
cc76b5cc | 297 | pad_add_anon(fmtcv, OP_NULL); |
f05e27e5 | 298 | } |
eae48c89 Z |
299 | } |
300 | | SUB startsub subname proto subattrlist subbody | |
301 | { | |
302 | SvREFCNT_inc_simple_void(PL_compcv); | |
303 | #ifdef MAD | |
304 | { | |
305 | OP* o = newSVOP(OP_ANONCODE, 0, | |
306 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
307 | $$ = 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 | $$ = (OP*)NULL; | |
363 | #endif | |
364 | } | |
417a992d | 365 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 366 | { |
3ad73efd Z |
367 | $$ = 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,$$,')'); | |
372 | PL_parser->copline = (line_t)IVAL($1); | |
373 | } | |
417a992d | 374 | | UNLESS '(' remember miexpr ')' mblock else |
eae48c89 | 375 | { |
3ad73efd Z |
376 | $$ = 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,$$,')'); | |
381 | PL_parser->copline = (line_t)IVAL($1); | |
382 | } | |
417a992d | 383 | | GIVEN '(' remember mydefsv mexpr ')' mblock |
eae48c89 Z |
384 | { |
385 | $$ = block_end($3, | |
3ad73efd | 386 | newGIVENOP($5, op_scope($7), (PADOFFSET)$4)); |
eae48c89 Z |
387 | PL_parser->copline = (line_t)IVAL($1); |
388 | } | |
417a992d | 389 | | WHEN '(' remember mexpr ')' mblock |
3ad73efd | 390 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } |
eae48c89 | 391 | | DEFAULT block |
3ad73efd | 392 | { $$ = newWHENOP(0, op_scope($2)); } |
417a992d | 393 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
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 | } | |
417a992d | 403 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
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 | } | |
417a992d | 413 | | FOR '(' remember mnexpr ';' texpr ';' mintro mnexpr ')' |
eae48c89 Z |
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 | } | |
417a992d | 434 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 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,$$,')'); | |
441 | PL_parser->copline = (line_t)IVAL($1); | |
442 | } | |
417a992d | 443 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 444 | { |
94bf0465 | 445 | $$ = 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,$$,')'); | |
450 | PL_parser->copline = (line_t)IVAL($1); | |
451 | } | |
417a992d | 452 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
453 | { |
454 | $$ = 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 | { | |
eae48c89 | 469 | package($3); |
eae48c89 | 470 | if ($2) { |
eae48c89 | 471 | package_version($2); |
eae48c89 Z |
472 | } |
473 | } | |
474 | stmtseq '}' | |
475 | { | |
476 | /* a block is a loop that happens once */ | |
94bf0465 | 477 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
eae48c89 | 478 | (OP*)NULL, block_end($5, $7), (OP*)NULL, 0); |
eae48c89 Z |
479 | TOKEN_GETMAD($4,$$,'{'); |
480 | TOKEN_GETMAD($8,$$,'}'); | |
481 | if (PL_parser->copline > (line_t)IVAL($4)) | |
482 | PL_parser->copline = (line_t)IVAL($4); | |
483 | } | |
484 | | sideff ';' | |
485 | { | |
486 | PL_parser->expect = XSTATE; | |
487 | $$ = $1; | |
488 | TOKEN_GETMAD($2,$$,';'); | |
489 | } | |
490 | | ';' | |
491 | { | |
492 | PL_parser->expect = XSTATE; | |
493 | $$ = IF_MAD(newOP(OP_NULL, 0), (OP*)NULL); | |
494 | TOKEN_GETMAD($1,$$,';'); | |
495 | PL_parser->copline = NOLINE; | |
5f211341 | 496 | } |
8d063cd8 LW |
497 | ; |
498 | ||
891be019 | 499 | /* An expression which may have a side-effect */ |
a687059c | 500 | sideff : error |
bcabcc50 | 501 | { $$ = (OP*)NULL; } |
a687059c | 502 | | expr |
79072805 | 503 | { $$ = $1; } |
a687059c | 504 | | expr IF expr |
f05e27e5 DM |
505 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
506 | TOKEN_GETMAD($2,$$,'i'); | |
507 | } | |
a687059c | 508 | | expr UNLESS expr |
f05e27e5 DM |
509 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
510 | TOKEN_GETMAD($2,$$,'i'); | |
511 | } | |
a687059c | 512 | | expr WHILE expr |
f05e27e5 DM |
513 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
514 | TOKEN_GETMAD($2,$$,'w'); | |
515 | } | |
55497cff | 516 | | expr UNTIL iexpr |
f05e27e5 DM |
517 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
518 | TOKEN_GETMAD($2,$$,'w'); | |
519 | } | |
ecca16b0 | 520 | | expr FOR expr |
94bf0465 | 521 | { $$ = newFOROP(0, (OP*)NULL, $3, $1, (OP*)NULL); |
eae48c89 | 522 | TOKEN_GETMAD($2,$$,'w'); |
94bf0465 | 523 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 524 | } |
f20dcd76 | 525 | | expr WHEN expr |
3ad73efd | 526 | { $$ = newWHENOP($3, op_scope($1)); } |
79072805 LW |
527 | ; |
528 | ||
891be019 | 529 | /* else and elsif blocks */ |
79072805 | 530 | else : /* NULL */ |
bcabcc50 | 531 | { $$ = (OP*)NULL; } |
55497cff | 532 | | ELSE mblock |
3ad73efd Z |
533 | { |
534 | ($2)->op_flags |= OPf_PARENS; | |
535 | $$ = op_scope($2); | |
f05e27e5 DM |
536 | TOKEN_GETMAD($1,$$,'o'); |
537 | } | |
417a992d | 538 | | ELSIF '(' mexpr ')' mblock else |
53a7735b | 539 | { PL_parser->copline = (line_t)IVAL($1); |
3ad73efd Z |
540 | $$ = newCONDOP(0, |
541 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
542 | op_scope($5), $6); | |
543 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 DM |
544 | TOKEN_GETMAD($1,$$,'I'); |
545 | TOKEN_GETMAD($2,$$,'('); | |
546 | TOKEN_GETMAD($4,$$,')'); | |
547 | } | |
79072805 LW |
548 | ; |
549 | ||
891be019 | 550 | /* Continue blocks */ |
79072805 | 551 | cont : /* NULL */ |
bcabcc50 | 552 | { $$ = (OP*)NULL; } |
79072805 | 553 | | CONTINUE block |
3ad73efd Z |
554 | { |
555 | $$ = op_scope($2); | |
f05e27e5 DM |
556 | TOKEN_GETMAD($1,$$,'o'); |
557 | } | |
79072805 LW |
558 | ; |
559 | ||
a034e688 DM |
560 | /* determine whether there are any new my declarations */ |
561 | mintro : /* NULL */ | |
562 | { $$ = (PL_min_intro_pending && | |
563 | PL_max_intro_pending >= PL_min_intro_pending); | |
564 | intro_my(); } | |
565 | ||
891be019 | 566 | /* Normal expression */ |
8d063cd8 | 567 | nexpr : /* NULL */ |
bcabcc50 | 568 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
569 | | sideff |
570 | ; | |
571 | ||
891be019 | 572 | /* Boolean expression */ |
8d063cd8 | 573 | texpr : /* NULL means true */ |
f05e27e5 DM |
574 | { YYSTYPE tmplval; |
575 | (void)scan_num("1", &tmplval); | |
576 | $$ = tmplval.opval; } | |
8d063cd8 LW |
577 | | expr |
578 | ; | |
579 | ||
891be019 | 580 | /* Inverted boolean expression */ |
55497cff | 581 | iexpr : expr |
582 | { $$ = invert(scalar($1)); } | |
583 | ; | |
584 | ||
891be019 | 585 | /* Expression with its own lexical scope */ |
55497cff | 586 | mexpr : expr |
bbce6d69 | 587 | { $$ = $1; intro_my(); } |
588 | ; | |
589 | ||
590 | mnexpr : nexpr | |
591 | { $$ = $1; intro_my(); } | |
55497cff | 592 | ; |
593 | ||
55497cff | 594 | miexpr : iexpr |
bbce6d69 | 595 | { $$ = $1; intro_my(); } |
55497cff | 596 | ; |
597 | ||
44a8e56a | 598 | formname: WORD { $$ = $1; } |
bcabcc50 | 599 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
600 | ; |
601 | ||
fa83b5b6 | 602 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
603 | { $$ = start_subparse(FALSE, 0); |
604 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 605 | |
28757baa | 606 | ; |
607 | ||
608 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
609 | { $$ = start_subparse(FALSE, CVf_ANON); |
610 | SAVEFREESV(PL_compcv); } | |
28757baa | 611 | ; |
612 | ||
44a8e56a | 613 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
614 | { $$ = start_subparse(TRUE, 0); |
615 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 616 | ; |
617 | ||
891be019 | 618 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 619 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 620 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
621 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
622 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 623 | CvSPECIAL_on(PL_compcv); |
28757baa | 624 | $$ = $1; } |
a0d0e21e LW |
625 | ; |
626 | ||
891be019 | 627 | /* Subroutine prototype */ |
4633a7c4 | 628 | proto : /* NULL */ |
bcabcc50 | 629 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
630 | | THING |
631 | ; | |
28757baa | 632 | |
891be019 | 633 | /* Optional list of subroutine attributes */ |
09bef843 | 634 | subattrlist: /* NULL */ |
bcabcc50 | 635 | { $$ = (OP*)NULL; } |
09bef843 | 636 | | COLONATTR THING |
f05e27e5 DM |
637 | { $$ = $2; |
638 | TOKEN_GETMAD($1,$$,':'); | |
639 | } | |
09bef843 | 640 | | COLONATTR |
f05e27e5 DM |
641 | { $$ = IF_MAD( |
642 | newOP(OP_NULL, 0), | |
bcabcc50 | 643 | (OP*)NULL |
f05e27e5 DM |
644 | ); |
645 | TOKEN_GETMAD($1,$$,':'); | |
646 | } | |
09bef843 SB |
647 | ; |
648 | ||
891be019 | 649 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 650 | myattrlist: COLONATTR THING |
f05e27e5 DM |
651 | { $$ = $2; |
652 | TOKEN_GETMAD($1,$$,':'); | |
653 | } | |
09bef843 | 654 | | COLONATTR |
f05e27e5 DM |
655 | { $$ = IF_MAD( |
656 | newOP(OP_NULL, 0), | |
bcabcc50 | 657 | (OP*)NULL |
f05e27e5 DM |
658 | ); |
659 | TOKEN_GETMAD($1,$$,':'); | |
660 | } | |
09bef843 SB |
661 | ; |
662 | ||
891be019 | 663 | /* Subroutine body - either null or a block */ |
28757baa | 664 | subbody : block { $$ = $1; } |
f05e27e5 DM |
665 | | ';' { $$ = IF_MAD( |
666 | newOP(OP_NULL,0), | |
bcabcc50 | 667 | (OP*)NULL |
f05e27e5 | 668 | ); |
53a7735b | 669 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
670 | TOKEN_GETMAD($1,$$,';'); |
671 | } | |
8d063cd8 LW |
672 | ; |
673 | ||
891be019 | 674 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 675 | expr : expr ANDOP expr |
f05e27e5 DM |
676 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
677 | TOKEN_GETMAD($2,$$,'o'); | |
678 | } | |
a0d0e21e | 679 | | expr OROP expr |
f05e27e5 DM |
680 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
681 | TOKEN_GETMAD($2,$$,'o'); | |
682 | } | |
c963b151 | 683 | | expr DOROP expr |
f05e27e5 DM |
684 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
685 | TOKEN_GETMAD($2,$$,'o'); | |
686 | } | |
09b1cffe | 687 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
688 | ; |
689 | ||
891be019 | 690 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 691 | listexpr: listexpr ',' |
f05e27e5 DM |
692 | { |
693 | #ifdef MAD | |
694 | OP* op = newNULLLIST(); | |
695 | token_getmad($2,op,','); | |
2fcb4757 | 696 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
697 | #else |
698 | $$ = $1; | |
699 | #endif | |
700 | } | |
09b1cffe | 701 | | listexpr ',' term |
f05e27e5 | 702 | { |
29522234 | 703 | OP* term = $3; |
f05e27e5 | 704 | DO_MAD( |
29522234 DM |
705 | term = newUNOP(OP_NULL, 0, term); |
706 | token_getmad($2,term,','); | |
f05e27e5 | 707 | ) |
2fcb4757 | 708 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 709 | } |
fad39ff1 | 710 | | term %prec PREC_LOW |
8d063cd8 LW |
711 | ; |
712 | ||
891be019 | 713 | /* List operators */ |
09b1cffe | 714 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 715 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 716 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
717 | TOKEN_GETMAD($1,$$,'o'); |
718 | } | |
891be019 | 719 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 720 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 721 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
722 | TOKEN_GETMAD($1,$$,'o'); |
723 | TOKEN_GETMAD($2,$$,'('); | |
724 | TOKEN_GETMAD($5,$$,')'); | |
725 | } | |
417a992d | 726 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
4633a7c4 | 727 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
728 | op_append_elem(OP_LIST, |
729 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
730 | newUNOP(OP_METHOD, 0, $3))); |
731 | TOKEN_GETMAD($2,$$,'A'); | |
732 | TOKEN_GETMAD($4,$$,'('); | |
733 | TOKEN_GETMAD($6,$$,')'); | |
734 | } | |
891be019 | 735 | | term ARROW method /* $foo->bar */ |
b1524f17 | 736 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 737 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
738 | newUNOP(OP_METHOD, 0, $3))); |
739 | TOKEN_GETMAD($2,$$,'A'); | |
740 | } | |
09b1cffe | 741 | | METHOD indirob optlistexpr /* new Class @args */ |
4633a7c4 | 742 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
743 | op_append_elem(OP_LIST, |
744 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
745 | newUNOP(OP_METHOD, 0, $1))); |
746 | } | |
09b1cffe | 747 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
4633a7c4 | 748 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
749 | op_append_elem(OP_LIST, |
750 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
751 | newUNOP(OP_METHOD, 0, $1))); |
752 | TOKEN_GETMAD($3,$$,'('); | |
753 | TOKEN_GETMAD($5,$$,')'); | |
754 | } | |
09b1cffe | 755 | | LSTOP optlistexpr /* print @args */ |
f05e27e5 DM |
756 | { $$ = convert(IVAL($1), 0, $2); |
757 | TOKEN_GETMAD($1,$$,'o'); | |
758 | } | |
09b1cffe | 759 | | FUNC '(' optexpr ')' /* print (@args) */ |
f05e27e5 DM |
760 | { $$ = convert(IVAL($1), 0, $3); |
761 | TOKEN_GETMAD($1,$$,'o'); | |
762 | TOKEN_GETMAD($2,$$,'('); | |
763 | TOKEN_GETMAD($4,$$,')'); | |
764 | } | |
718a7425 | 765 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 766 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 767 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
09b1cffe | 768 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 769 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
770 | op_append_elem(OP_LIST, |
771 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 772 | } |
a687059c LW |
773 | ; |
774 | ||
891be019 | 775 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
776 | method : METHOD |
777 | | scalar | |
778 | ; | |
779 | ||
891be019 SC |
780 | /* Some kind of subscripted expression */ |
781 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
782 | /* In this and all the hash accessors, ';' is | |
783 | * provided by the tokeniser */ | |
264e1af3 | 784 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 785 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
786 | TOKEN_GETMAD($2,$$,'{'); |
787 | TOKEN_GETMAD($4,$$,';'); | |
788 | TOKEN_GETMAD($5,$$,'}'); | |
789 | } | |
891be019 | 790 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
791 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
792 | TOKEN_GETMAD($2,$$,'['); | |
793 | TOKEN_GETMAD($4,$$,']'); | |
794 | } | |
891be019 | 795 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
796 | { $$ = newBINOP(OP_AELEM, 0, |
797 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
798 | scalar($4)); |
799 | TOKEN_GETMAD($2,$$,'a'); | |
800 | TOKEN_GETMAD($3,$$,'['); | |
801 | TOKEN_GETMAD($5,$$,']'); | |
802 | } | |
891be019 | 803 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
804 | { $$ = newBINOP(OP_AELEM, 0, |
805 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
806 | scalar($3)); |
807 | TOKEN_GETMAD($2,$$,'['); | |
808 | TOKEN_GETMAD($4,$$,']'); | |
809 | } | |
5a63ceef | 810 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 811 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 812 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
813 | TOKEN_GETMAD($2,$$,'{'); |
814 | TOKEN_GETMAD($4,$$,';'); | |
815 | TOKEN_GETMAD($5,$$,'}'); | |
816 | } | |
891be019 | 817 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
818 | { $$ = newBINOP(OP_HELEM, 0, |
819 | ref(newHVREF($1),OP_RV2HV), | |
820 | jmaybe($4)); | |
53a7735b | 821 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
822 | TOKEN_GETMAD($2,$$,'a'); |
823 | TOKEN_GETMAD($3,$$,'{'); | |
824 | TOKEN_GETMAD($5,$$,';'); | |
825 | TOKEN_GETMAD($6,$$,'}'); | |
826 | } | |
891be019 | 827 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
828 | { $$ = newBINOP(OP_HELEM, 0, |
829 | ref(newHVREF($1),OP_RV2HV), | |
830 | jmaybe($3)); | |
53a7735b | 831 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
832 | TOKEN_GETMAD($2,$$,'{'); |
833 | TOKEN_GETMAD($4,$$,';'); | |
834 | TOKEN_GETMAD($5,$$,'}'); | |
835 | } | |
891be019 | 836 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 837 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
838 | newCVREF(0, scalar($1))); |
839 | TOKEN_GETMAD($2,$$,'a'); | |
840 | TOKEN_GETMAD($3,$$,'('); | |
841 | TOKEN_GETMAD($4,$$,')'); | |
842 | } | |
891be019 | 843 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 844 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 845 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
846 | newCVREF(0, scalar($1)))); |
847 | TOKEN_GETMAD($2,$$,'a'); | |
848 | TOKEN_GETMAD($3,$$,'('); | |
849 | TOKEN_GETMAD($5,$$,')'); | |
850 | } | |
fad39ff1 | 851 | |
417a992d | 852 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 853 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 854 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
855 | newCVREF(0, scalar($1)))); |
856 | TOKEN_GETMAD($2,$$,'('); | |
857 | TOKEN_GETMAD($4,$$,')'); | |
858 | } | |
417a992d | 859 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 860 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
861 | newCVREF(0, scalar($1))); |
862 | TOKEN_GETMAD($2,$$,'('); | |
863 | TOKEN_GETMAD($3,$$,')'); | |
864 | } | |
9a9798c2 | 865 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
866 | { $$ = newSLICEOP(0, $5, $2); |
867 | TOKEN_GETMAD($1,$$,'('); | |
868 | TOKEN_GETMAD($3,$$,')'); | |
869 | TOKEN_GETMAD($4,$$,'['); | |
870 | TOKEN_GETMAD($6,$$,']'); | |
871 | } | |
ea25a9b2 Z |
872 | | QWLIST '[' expr ']' /* list literal slice */ |
873 | { $$ = newSLICEOP(0, $3, $1); | |
874 | TOKEN_GETMAD($2,$$,'['); | |
875 | TOKEN_GETMAD($4,$$,']'); | |
876 | } | |
9a9798c2 | 877 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 878 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
879 | TOKEN_GETMAD($1,$$,'('); |
880 | TOKEN_GETMAD($2,$$,')'); | |
881 | TOKEN_GETMAD($3,$$,'['); | |
882 | TOKEN_GETMAD($5,$$,']'); | |
883 | } | |
891be019 | 884 | ; |
fad39ff1 | 885 | |
891be019 | 886 | /* Binary operators between terms */ |
f05e27e5 DM |
887 | termbinop: term ASSIGNOP term /* $x = $y */ |
888 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
889 | TOKEN_GETMAD($2,$$,'o'); | |
890 | } | |
891be019 | 891 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
892 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
893 | TOKEN_GETMAD($2,$$,'o'); | |
894 | } | |
891be019 | 895 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 896 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 897 | scalar($1); |
f05e27e5 DM |
898 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
899 | TOKEN_GETMAD($2,$$,'o'); | |
900 | } | |
891be019 | 901 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
902 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
903 | TOKEN_GETMAD($2,$$,'o'); | |
904 | } | |
891be019 | 905 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
906 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
907 | TOKEN_GETMAD($2,$$,'o'); | |
908 | } | |
891be019 | 909 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
910 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
911 | TOKEN_GETMAD($2,$$,'o'); | |
912 | } | |
891be019 | 913 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
914 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
915 | TOKEN_GETMAD($2,$$,'o'); | |
916 | } | |
891be019 | 917 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
918 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
919 | TOKEN_GETMAD($2,$$,'o'); | |
920 | } | |
891be019 | 921 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
922 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
923 | TOKEN_GETMAD($2,$$,'o'); | |
924 | } | |
891be019 | 925 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
926 | { |
927 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 928 | DO_MAD({ |
f05e27e5 DM |
929 | UNOP *op; |
930 | op = (UNOP*)$$; | |
931 | op = (UNOP*)op->op_first; /* get to flop */ | |
932 | op = (UNOP*)op->op_first; /* get to flip */ | |
933 | op = (UNOP*)op->op_first; /* get to range */ | |
934 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 935 | }) |
f05e27e5 | 936 | } |
891be019 | 937 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
938 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
939 | TOKEN_GETMAD($2,$$,'o'); | |
940 | } | |
891be019 | 941 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
942 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
943 | TOKEN_GETMAD($2,$$,'o'); | |
944 | } | |
c963b151 | 945 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
946 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
947 | TOKEN_GETMAD($2,$$,'o'); | |
948 | } | |
891be019 | 949 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
950 | { $$ = bind_match(IVAL($2), $1, $3); |
951 | TOKEN_GETMAD($2, | |
952 | ($$->op_type == OP_NOT | |
953 | ? ((UNOP*)$$)->op_first : $$), | |
954 | '~'); | |
955 | } | |
891be019 | 956 | ; |
8d063cd8 | 957 | |
891be019 SC |
958 | /* Unary operators and terms */ |
959 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
960 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
961 | TOKEN_GETMAD($1,$$,'o'); | |
962 | } | |
891be019 | 963 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
964 | { $$ = IF_MAD( |
965 | newUNOP(OP_NULL, 0, $2), | |
966 | $2 | |
967 | ); | |
968 | TOKEN_GETMAD($1,$$,'+'); | |
969 | } | |
891be019 | 970 | | '!' term /* !$x */ |
f05e27e5 DM |
971 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
972 | TOKEN_GETMAD($1,$$,'o'); | |
973 | } | |
891be019 | 974 | | '~' term /* ~$x */ |
f05e27e5 DM |
975 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
976 | TOKEN_GETMAD($1,$$,'o'); | |
977 | } | |
891be019 | 978 | | term POSTINC /* $x++ */ |
79072805 | 979 | { $$ = newUNOP(OP_POSTINC, 0, |
3ad73efd | 980 | op_lvalue(scalar($1), OP_POSTINC)); |
f05e27e5 DM |
981 | TOKEN_GETMAD($2,$$,'o'); |
982 | } | |
891be019 | 983 | | term POSTDEC /* $x-- */ |
79072805 | 984 | { $$ = newUNOP(OP_POSTDEC, 0, |
3ad73efd | 985 | op_lvalue(scalar($1), OP_POSTDEC)); |
f05e27e5 DM |
986 | TOKEN_GETMAD($2,$$,'o'); |
987 | } | |
891be019 | 988 | | PREINC term /* ++$x */ |
79072805 | 989 | { $$ = newUNOP(OP_PREINC, 0, |
3ad73efd | 990 | op_lvalue(scalar($2), OP_PREINC)); |
f05e27e5 DM |
991 | TOKEN_GETMAD($1,$$,'o'); |
992 | } | |
891be019 | 993 | | PREDEC term /* --$x */ |
79072805 | 994 | { $$ = newUNOP(OP_PREDEC, 0, |
3ad73efd | 995 | op_lvalue(scalar($2), OP_PREDEC)); |
f05e27e5 DM |
996 | TOKEN_GETMAD($1,$$,'o'); |
997 | } | |
891be019 SC |
998 | |
999 | ; | |
1000 | ||
1001 | /* Constructors for anonymous data */ | |
1002 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1003 | { $$ = newANONLIST($2); |
1004 | TOKEN_GETMAD($1,$$,'['); | |
1005 | TOKEN_GETMAD($3,$$,']'); | |
1006 | } | |
891be019 | 1007 | | '[' ']' |
bcabcc50 | 1008 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1009 | TOKEN_GETMAD($1,$$,'['); |
1010 | TOKEN_GETMAD($2,$$,']'); | |
1011 | } | |
891be019 | 1012 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1013 | { $$ = newANONHASH($2); |
1014 | TOKEN_GETMAD($1,$$,'{'); | |
1015 | TOKEN_GETMAD($3,$$,';'); | |
1016 | TOKEN_GETMAD($4,$$,'}'); | |
1017 | } | |
891be019 | 1018 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1019 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1020 | TOKEN_GETMAD($1,$$,'{'); |
1021 | TOKEN_GETMAD($2,$$,';'); | |
1022 | TOKEN_GETMAD($3,$$,'}'); | |
1023 | } | |
718a7425 | 1024 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1025 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1026 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1027 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1028 | OP_GETMAD($3,$$,'s'); |
1029 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1030 | } |
891be019 SC |
1031 | |
1032 | ; | |
1033 | ||
1034 | /* Things called with "do" */ | |
1035 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1036 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1037 | TOKEN_GETMAD($1,$$,'o'); |
1038 | } | |
891be019 | 1039 | | DO block %prec '(' /* do { code */ |
3ad73efd | 1040 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2)); |
f05e27e5 DM |
1041 | TOKEN_GETMAD($1,$$,'D'); |
1042 | } | |
417a992d | 1043 | | DO WORD '(' ')' /* do somesub() */ |
891be019 SC |
1044 | { $$ = newUNOP(OP_ENTERSUB, |
1045 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1046 | op_prepend_elem(OP_LIST, |
891be019 SC |
1047 | scalar(newCVREF( |
1048 | (OPpENTERSUB_AMPER<<8), | |
1049 | scalar($2) | |
bcabcc50 | 1050 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1051 | TOKEN_GETMAD($1,$$,'o'); |
1052 | TOKEN_GETMAD($3,$$,'('); | |
1053 | TOKEN_GETMAD($4,$$,')'); | |
1054 | } | |
417a992d | 1055 | | DO WORD '(' expr ')' /* do somesub(@args) */ |
891be019 SC |
1056 | { $$ = newUNOP(OP_ENTERSUB, |
1057 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1058 | op_append_elem(OP_LIST, |
891be019 SC |
1059 | $4, |
1060 | scalar(newCVREF( | |
1061 | (OPpENTERSUB_AMPER<<8), | |
1062 | scalar($2) | |
f05e27e5 DM |
1063 | )))); dep(); |
1064 | TOKEN_GETMAD($1,$$,'o'); | |
1065 | TOKEN_GETMAD($3,$$,'('); | |
1066 | TOKEN_GETMAD($5,$$,')'); | |
1067 | } | |
417a992d | 1068 | | DO scalar '(' ')' /* do $subref () */ |
891be019 | 1069 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1070 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1071 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1072 | TOKEN_GETMAD($1,$$,'o'); |
1073 | TOKEN_GETMAD($3,$$,'('); | |
1074 | TOKEN_GETMAD($4,$$,')'); | |
1075 | } | |
417a992d | 1076 | | DO scalar '(' expr ')' /* do $subref (@args) */ |
891be019 | 1077 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1078 | op_prepend_elem(OP_LIST, |
891be019 | 1079 | $4, |
f05e27e5 DM |
1080 | scalar(newCVREF(0,scalar($2))))); dep(); |
1081 | TOKEN_GETMAD($1,$$,'o'); | |
1082 | TOKEN_GETMAD($3,$$,'('); | |
1083 | TOKEN_GETMAD($5,$$,')'); | |
1084 | } | |
891be019 SC |
1085 | |
1086 | ; | |
1087 | ||
1088 | term : termbinop | |
1089 | | termunop | |
1090 | | anonymous | |
1091 | | termdo | |
e9bdcc27 | 1092 | | term '?' term ':' term |
f05e27e5 DM |
1093 | { $$ = newCONDOP(0, $1, $3, $5); |
1094 | TOKEN_GETMAD($2,$$,'?'); | |
1095 | TOKEN_GETMAD($4,$$,':'); | |
1096 | } | |
891be019 | 1097 | | REFGEN term /* \$x, \@y, \%z */ |
3ad73efd | 1098 | { $$ = newUNOP(OP_REFGEN, 0, op_lvalue($2,OP_REFGEN)); |
f05e27e5 DM |
1099 | TOKEN_GETMAD($1,$$,'o'); |
1100 | } | |
09bef843 SB |
1101 | | myattrterm %prec UNIOP |
1102 | { $$ = $1; } | |
1103 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1104 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1105 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1106 | } |
a0d0e21e | 1107 | | '(' expr ')' |
f05e27e5 DM |
1108 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1109 | TOKEN_GETMAD($1,$$,'('); | |
1110 | TOKEN_GETMAD($3,$$,')'); | |
1111 | } | |
ea25a9b2 Z |
1112 | | QWLIST |
1113 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1114 | | '(' ')' |
f05e27e5 DM |
1115 | { $$ = sawparens(newNULLLIST()); |
1116 | TOKEN_GETMAD($1,$$,'('); | |
1117 | TOKEN_GETMAD($2,$$,')'); | |
1118 | } | |
79072805 | 1119 | | scalar %prec '(' |
8d063cd8 | 1120 | { $$ = $1; } |
79072805 | 1121 | | star %prec '(' |
8d063cd8 | 1122 | { $$ = $1; } |
79072805 | 1123 | | hsh %prec '(' |
8d063cd8 | 1124 | { $$ = $1; } |
79072805 | 1125 | | ary %prec '(' |
8d063cd8 | 1126 | { $$ = $1; } |
891be019 | 1127 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1128 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1129 | | subscripted |
1130 | { $$ = $1; } | |
891be019 | 1131 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1132 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1133 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1134 | newLISTOP(OP_ASLICE, 0, |
1135 | list($3), | |
f05e27e5 DM |
1136 | ref($1, OP_ASLICE))); |
1137 | TOKEN_GETMAD($2,$$,'['); | |
1138 | TOKEN_GETMAD($4,$$,']'); | |
1139 | } | |
891be019 | 1140 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1141 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1142 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1143 | newLISTOP(OP_HSLICE, 0, |
1144 | list($3), | |
a0d0e21e | 1145 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1146 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1147 | TOKEN_GETMAD($2,$$,'{'); |
1148 | TOKEN_GETMAD($4,$$,';'); | |
1149 | TOKEN_GETMAD($5,$$,'}'); | |
1150 | } | |
79072805 LW |
1151 | | THING %prec '(' |
1152 | { $$ = $1; } | |
891be019 | 1153 | | amper /* &foo; */ |
c07a80fd | 1154 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
417a992d | 1155 | | amper '(' ')' /* &foo() */ |
f05e27e5 DM |
1156 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1157 | TOKEN_GETMAD($2,$$,'('); | |
1158 | TOKEN_GETMAD($3,$$,')'); | |
1159 | } | |
417a992d | 1160 | | amper '(' expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1161 | { |
1162 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1163 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1164 | DO_MAD({ |
f05e27e5 DM |
1165 | OP* op = $$; |
1166 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1167 | op = (OP*)op->op_madprop->mad_val; | |
1168 | } | |
1169 | token_getmad($2,op,'('); | |
1170 | token_getmad($4,op,')'); | |
035e2bcc | 1171 | }) |
f05e27e5 | 1172 | } |
09b1cffe | 1173 | | NOAMP WORD optlistexpr /* foo(@args) */ |
a0d0e21e | 1174 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1175 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1176 | TOKEN_GETMAD($1,$$,'o'); |
1177 | } | |
891be019 | 1178 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1179 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1180 | PL_hints |= HINT_BLOCK_SCOPE; | |
1181 | TOKEN_GETMAD($1,$$,'o'); | |
1182 | } | |
a0d0e21e | 1183 | | LOOPEX term |
f05e27e5 DM |
1184 | { $$ = newLOOPEX(IVAL($1),$2); |
1185 | TOKEN_GETMAD($1,$$,'o'); | |
1186 | } | |
09b1cffe | 1187 | | NOTOP listexpr /* not $foo */ |
f05e27e5 DM |
1188 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1189 | TOKEN_GETMAD($1,$$,'o'); | |
1190 | } | |
891be019 | 1191 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1192 | { $$ = newOP(IVAL($1), 0); |
1193 | TOKEN_GETMAD($1,$$,'o'); | |
1194 | } | |
1195 | | UNIOP block /* eval { foo }* */ | |
1196 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1197 | TOKEN_GETMAD($1,$$,'o'); | |
1198 | } | |
891be019 | 1199 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1200 | { $$ = newUNOP(IVAL($1), 0, $2); |
1201 | TOKEN_GETMAD($1,$$,'o'); | |
1202 | } | |
d2fdf8fd RGS |
1203 | | REQUIRE /* require, $_ implied */ |
1204 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1205 | TOKEN_GETMAD($1,$$,'o'); | |
1206 | } | |
1207 | | REQUIRE term /* require Foo */ | |
1208 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1209 | TOKEN_GETMAD($1,$$,'o'); | |
1210 | } | |
3cd0a11a RGS |
1211 | | UNIOPSUB |
1212 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1213 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1214 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1215 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1216 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1217 | { $$ = newOP(IVAL($1), 0); |
1218 | TOKEN_GETMAD($1,$$,'o'); | |
1219 | } | |
ae986130 | 1220 | | FUNC0 '(' ')' |
f05e27e5 DM |
1221 | { $$ = newOP(IVAL($1), 0); |
1222 | TOKEN_GETMAD($1,$$,'o'); | |
1223 | TOKEN_GETMAD($2,$$,'('); | |
1224 | TOKEN_GETMAD($3,$$,')'); | |
1225 | } | |
7eb971ee FC |
1226 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1227 | { $$ = $1; } | |
1228 | | FUNC0OP '(' ')' | |
1229 | { $$ = $1; | |
1230 | TOKEN_GETMAD($2,$$,'('); | |
1231 | TOKEN_GETMAD($3,$$,')'); | |
1232 | } | |
891be019 | 1233 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1234 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1235 | scalar($1)); } |
891be019 | 1236 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1237 | { $$ = (IVAL($1) == OP_NOT) |
1238 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1239 | : newOP(IVAL($1), OPf_SPECIAL); | |
1240 | ||
1241 | TOKEN_GETMAD($1,$$,'o'); | |
1242 | TOKEN_GETMAD($2,$$,'('); | |
1243 | TOKEN_GETMAD($3,$$,')'); | |
1244 | } | |
891be019 | 1245 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1246 | { $$ = newUNOP(IVAL($1), 0, $3); |
1247 | TOKEN_GETMAD($1,$$,'o'); | |
1248 | TOKEN_GETMAD($2,$$,'('); | |
1249 | TOKEN_GETMAD($4,$$,')'); | |
1250 | } | |
d63c20f2 DM |
1251 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1252 | { | |
1253 | if ( $1->op_type != OP_TRANS | |
1254 | && $1->op_type != OP_TRANSR | |
1255 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1256 | { | |
1257 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1258 | SAVEFREESV(PL_compcv); | |
1259 | } else | |
1260 | $<ival>$ = 0; | |
1261 | } | |
1262 | '(' listexpr ')' | |
1263 | { $$ = pmruntime($1, $4, 1, $<ival>2); | |
1264 | TOKEN_GETMAD($3,$$,'('); | |
1265 | TOKEN_GETMAD($5,$$,')'); | |
f05e27e5 | 1266 | } |
79072805 | 1267 | | WORD |
378cc40b | 1268 | | listop |
be25f609 | 1269 | | YADAYADA |
1270 | { | |
1271 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1272 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1273 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1274 | } |
88e1f1a2 | 1275 | | PLUGEXPR |
8d063cd8 LW |
1276 | ; |
1277 | ||
891be019 | 1278 | /* "my" declarations, with optional attributes */ |
09bef843 | 1279 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1280 | { $$ = my_attrs($2,$3); |
1281 | DO_MAD( | |
1282 | token_getmad($1,$$,'d'); | |
1283 | append_madprops($3->op_madprop, $$, 'a'); | |
1284 | $3->op_madprop = 0; | |
1285 | ) | |
1286 | } | |
09bef843 | 1287 | | MY myterm |
f05e27e5 DM |
1288 | { $$ = localize($2,IVAL($1)); |
1289 | TOKEN_GETMAD($1,$$,'d'); | |
1290 | } | |
09bef843 SB |
1291 | ; |
1292 | ||
891be019 | 1293 | /* Things that can be "my"'d */ |
09bef843 | 1294 | myterm : '(' expr ')' |
f05e27e5 DM |
1295 | { $$ = sawparens($2); |
1296 | TOKEN_GETMAD($1,$$,'('); | |
1297 | TOKEN_GETMAD($3,$$,')'); | |
1298 | } | |
09bef843 | 1299 | | '(' ')' |
f05e27e5 DM |
1300 | { $$ = sawparens(newNULLLIST()); |
1301 | TOKEN_GETMAD($1,$$,'('); | |
1302 | TOKEN_GETMAD($2,$$,')'); | |
1303 | } | |
09bef843 SB |
1304 | | scalar %prec '(' |
1305 | { $$ = $1; } | |
1306 | | hsh %prec '(' | |
1307 | { $$ = $1; } | |
1308 | | ary %prec '(' | |
1309 | { $$ = $1; } | |
1310 | ; | |
1311 | ||
891be019 | 1312 | /* Basic list expressions */ |
09b1cffe | 1313 | optlistexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1314 | { $$ = (OP*)NULL; } |
09b1cffe | 1315 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1316 | { $$ = $1; } |
1317 | ; | |
1318 | ||
09b1cffe | 1319 | optexpr: /* NULL */ |
bcabcc50 | 1320 | { $$ = (OP*)NULL; } |
79072805 LW |
1321 | | expr |
1322 | { $$ = $1; } | |
1323 | ; | |
1324 | ||
891be019 SC |
1325 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1326 | lexical */ | |
55497cff | 1327 | my_scalar: scalar |
12bd6ede | 1328 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1329 | ; |
1330 | ||
79072805 | 1331 | amper : '&' indirob |
f05e27e5 DM |
1332 | { $$ = newCVREF(IVAL($1),$2); |
1333 | TOKEN_GETMAD($1,$$,'&'); | |
1334 | } | |
a687059c LW |
1335 | ; |
1336 | ||
79072805 | 1337 | scalar : '$' indirob |
f05e27e5 DM |
1338 | { $$ = newSVREF($2); |
1339 | TOKEN_GETMAD($1,$$,'$'); | |
1340 | } | |
a687059c LW |
1341 | ; |
1342 | ||
79072805 | 1343 | ary : '@' indirob |
f05e27e5 DM |
1344 | { $$ = newAVREF($2); |
1345 | TOKEN_GETMAD($1,$$,'@'); | |
1346 | } | |
79072805 LW |
1347 | ; |
1348 | ||
1349 | hsh : '%' indirob | |
f05e27e5 DM |
1350 | { $$ = newHVREF($2); |
1351 | TOKEN_GETMAD($1,$$,'%'); | |
1352 | } | |
79072805 LW |
1353 | ; |
1354 | ||
1355 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1356 | { $$ = newAVREF($2); |
1357 | TOKEN_GETMAD($1,$$,'l'); | |
1358 | } | |
79072805 LW |
1359 | ; |
1360 | ||
1361 | star : '*' indirob | |
f05e27e5 DM |
1362 | { $$ = newGVREF(0,$2); |
1363 | TOKEN_GETMAD($1,$$,'*'); | |
1364 | } | |
79072805 LW |
1365 | ; |
1366 | ||
891be019 | 1367 | /* Indirect objects */ |
79072805 LW |
1368 | indirob : WORD |
1369 | { $$ = scalar($1); } | |
fad39ff1 | 1370 | | scalar %prec PREC_LOW |
f05e27e5 | 1371 | { $$ = scalar($1); } |
79072805 | 1372 | | block |
3ad73efd | 1373 | { $$ = op_scope($1); } |
79072805 | 1374 | |
93a17b20 LW |
1375 | | PRIVATEREF |
1376 | { $$ = $1; } | |
8d063cd8 | 1377 | ; |