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 $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
8359b381 | 72 | %token <ival> GRAMPROG GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 73 | |
123d08c9 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
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 | ||
eae48c89 | 97 | %type <opval> stmtseq fullstmt barestmt block mblock else |
fad39ff1 | 98 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
a034e688 | 99 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr miexpr |
44a8e56a | 100 | %type <opval> listexpr listexprcom indirob listop method |
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 |
f05e27e5 | 104 | %type <p_tkval> label |
79072805 | 105 | |
123d08c9 | 106 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 SM |
107 | %nonassoc LOOPEX |
108 | ||
123d08c9 DM |
109 | %left <i_tkval> OROP DOROP |
110 | %left <i_tkval> ANDOP | |
111 | %right <i_tkval> NOTOP | |
36477c24 | 112 | %nonassoc LSTOP LSTOPSUB |
123d08c9 DM |
113 | %left <i_tkval> ',' |
114 | %right <i_tkval> ASSIGNOP | |
115 | %right <i_tkval> '?' ':' | |
be25f609 | 116 | %nonassoc DOTDOT YADAYADA |
123d08c9 DM |
117 | %left <i_tkval> OROR DORDOR |
118 | %left <i_tkval> ANDAND | |
119 | %left <i_tkval> BITOROP | |
120 | %left <i_tkval> BITANDOP | |
a687059c LW |
121 | %nonassoc EQOP |
122 | %nonassoc RELOP | |
36477c24 | 123 | %nonassoc UNIOP UNIOPSUB |
20515881 | 124 | %nonassoc REQUIRE |
123d08c9 | 125 | %left <i_tkval> SHIFTOP |
a687059c LW |
126 | %left ADDOP |
127 | %left MULOP | |
123d08c9 DM |
128 | %left <i_tkval> MATCHOP |
129 | %right <i_tkval> '!' '~' UMINUS REFGEN | |
130 | %right <i_tkval> POWOP | |
131 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC | |
132 | %left <i_tkval> ARROW | |
133 | %nonassoc <i_tkval> ')' | |
134 | %left <i_tkval> '(' | |
fad39ff1 | 135 | %left '[' '{' |
8d063cd8 | 136 | |
123d08c9 | 137 | %token <i_tkval> PEG |
7f46837f | 138 | |
8d063cd8 LW |
139 | %% /* RULES */ |
140 | ||
28ac2b49 | 141 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
142 | grammar : GRAMPROG |
143 | { | |
144 | PL_parser->expect = XSTATE; | |
145 | } | |
146 | remember stmtseq | |
147 | { | |
148 | newPROG(block_end($3,$4)); | |
149 | $$ = 0; | |
150 | } | |
e53d8f76 Z |
151 | | GRAMBLOCK |
152 | { | |
153 | parser->expect = XBLOCK; | |
154 | } | |
155 | block | |
156 | { | |
5f211341 | 157 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
158 | PL_eval_root = $3; |
159 | $$ = 0; | |
160 | yyunlex(); | |
161 | parser->yychar = YYEOF; | |
162 | } | |
163 | | GRAMBARESTMT | |
164 | { | |
165 | parser->expect = XSTATE; | |
166 | } | |
167 | barestmt | |
168 | { | |
169 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
170 | PL_eval_root = $3; |
171 | $$ = 0; | |
172 | yyunlex(); | |
173 | parser->yychar = YYEOF; | |
174 | } | |
9eb5c532 | 175 | | GRAMFULLSTMT |
28ac2b49 | 176 | { |
9eb5c532 Z |
177 | parser->expect = XSTATE; |
178 | } | |
179 | fullstmt | |
180 | { | |
5f211341 | 181 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 182 | PL_eval_root = $3; |
28ac2b49 Z |
183 | $$ = 0; |
184 | yyunlex(); | |
185 | parser->yychar = YYEOF; | |
186 | } | |
07ffcb73 Z |
187 | | GRAMSTMTSEQ |
188 | { | |
189 | parser->expect = XSTATE; | |
190 | } | |
5f211341 | 191 | stmtseq |
07ffcb73 Z |
192 | { |
193 | PL_eval_root = $3; | |
194 | $$ = 0; | |
195 | } | |
196 | ; | |
197 | ||
891be019 | 198 | /* An ordinary block */ |
5f211341 | 199 | block : '{' remember stmtseq '}' |
53a7735b DM |
200 | { if (PL_parser->copline > (line_t)IVAL($1)) |
201 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
202 | $$ = block_end($2, $3); |
203 | TOKEN_GETMAD($1,$$,'{'); | |
204 | TOKEN_GETMAD($4,$$,'}'); | |
205 | } | |
a0d0e21e LW |
206 | ; |
207 | ||
55497cff | 208 | remember: /* NULL */ /* start a full lexical scope */ |
209 | { $$ = block_start(TRUE); } | |
210 | ; | |
211 | ||
0d863452 | 212 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 | 213 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 RH |
214 | ; |
215 | ||
5f211341 | 216 | mblock : '{' mremember stmtseq '}' |
53a7735b DM |
217 | { if (PL_parser->copline > (line_t)IVAL($1)) |
218 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
219 | $$ = block_end($2, $3); |
220 | TOKEN_GETMAD($1,$$,'{'); | |
221 | TOKEN_GETMAD($4,$$,'}'); | |
222 | } | |
55497cff | 223 | ; |
224 | ||
225 | mremember: /* NULL */ /* start a partial lexical scope */ | |
226 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
227 | ; |
228 | ||
eae48c89 | 229 | /* A sequence of statements in the program */ |
5f211341 | 230 | stmtseq : /* NULL */ |
bcabcc50 | 231 | { $$ = (OP*)NULL; } |
5f211341 | 232 | | stmtseq fullstmt |
2fcb4757 | 233 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 234 | PL_pad_reset_pending = TRUE; |
503de470 DM |
235 | if ($1 && $2) |
236 | PL_hints |= HINT_BLOCK_SCOPE; | |
237 | } | |
8d063cd8 LW |
238 | ; |
239 | ||
eae48c89 Z |
240 | /* A statement in the program, including optional label */ |
241 | fullstmt: label barestmt | |
242 | { | |
243 | if (PVAL($1) || $2) { | |
244 | $$ = newSTATEOP(0, PVAL($1), $2); | |
245 | TOKEN_GETMAD($1, | |
246 | $2 ? cLISTOPx($$)->op_first : $$, 'L'); | |
247 | } else { | |
248 | $$ = IF_MAD(newOP(OP_NULL, 0), $2); | |
249 | } | |
250 | } | |
251 | ; | |
252 | ||
253 | /* A bare statement, lacking label and other aspects of state op */ | |
254 | barestmt: PLUGSTMT | |
0d863452 | 255 | { $$ = $1; } |
eae48c89 Z |
256 | | PEG |
257 | { | |
258 | $$ = newOP(OP_NULL,0); | |
259 | TOKEN_GETMAD($1,$$,'p'); | |
260 | } | |
261 | | FORMAT startformsub formname block | |
f05e27e5 | 262 | { |
eae48c89 Z |
263 | CV *fmtcv = PL_compcv; |
264 | SvREFCNT_inc_simple_void(PL_compcv); | |
265 | #ifdef MAD | |
266 | $$ = newFORM($2, $3, $4); | |
267 | prepend_madprops($1->tk_mad, $$, 'F'); | |
268 | $1->tk_mad = 0; | |
269 | token_free($1); | |
270 | #else | |
271 | newFORM($2, $3, $4); | |
272 | $$ = (OP*)NULL; | |
273 | #endif | |
274 | if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) { | |
275 | SvREFCNT_inc_simple_void(fmtcv); | |
276 | pad_add_anon((SV*)fmtcv, OP_NULL); | |
f05e27e5 | 277 | } |
eae48c89 Z |
278 | } |
279 | | SUB startsub subname proto subattrlist subbody | |
280 | { | |
281 | SvREFCNT_inc_simple_void(PL_compcv); | |
282 | #ifdef MAD | |
283 | { | |
284 | OP* o = newSVOP(OP_ANONCODE, 0, | |
285 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
286 | $$ = newOP(OP_NULL,0); | |
287 | op_getmad(o,$$,'&'); | |
288 | op_getmad($3,$$,'n'); | |
289 | op_getmad($4,$$,'s'); | |
290 | op_getmad($5,$$,'a'); | |
291 | token_getmad($1,$$,'d'); | |
292 | append_madprops($6->op_madprop, $$, 0); | |
293 | $6->op_madprop = 0; | |
f05e27e5 | 294 | } |
eae48c89 Z |
295 | #else |
296 | newATTRSUB($2, $3, $4, $5, $6); | |
297 | $$ = (OP*)NULL; | |
298 | #endif | |
f05e27e5 | 299 | } |
eae48c89 | 300 | | MYSUB startsub subname proto subattrlist subbody |
f05e27e5 | 301 | { |
eae48c89 Z |
302 | /* Unimplemented "my sub foo { }" */ |
303 | SvREFCNT_inc_simple_void(PL_compcv); | |
304 | #ifdef MAD | |
305 | $$ = newMYSUB($2, $3, $4, $5, $6); | |
306 | token_getmad($1,$$,'d'); | |
307 | #else | |
308 | newMYSUB($2, $3, $4, $5, $6); | |
309 | $$ = (OP*)NULL; | |
310 | #endif | |
311 | } | |
312 | | PACKAGE WORD WORD ';' | |
5f211341 | 313 | { |
eae48c89 Z |
314 | #ifdef MAD |
315 | $$ = package($3); | |
316 | token_getmad($1,$$,'o'); | |
317 | if ($2) | |
318 | package_version($2); | |
319 | token_getmad($4,$$,';'); | |
320 | #else | |
321 | package($3); | |
322 | if ($2) | |
323 | package_version($2); | |
324 | $$ = (OP*)NULL; | |
325 | #endif | |
326 | } | |
327 | | USE startsub | |
328 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
329 | WORD WORD listexpr ';' | |
330 | { | |
331 | SvREFCNT_inc_simple_void(PL_compcv); | |
332 | #ifdef MAD | |
333 | $$ = utilize(IVAL($1), $2, $4, $5, $6); | |
334 | token_getmad($1,$$,'o'); | |
335 | token_getmad($7,$$,';'); | |
336 | if (PL_parser->rsfp_filters && | |
337 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
338 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); | |
339 | #else | |
340 | utilize(IVAL($1), $2, $4, $5, $6); | |
341 | $$ = (OP*)NULL; | |
342 | #endif | |
343 | } | |
344 | | IF lpar_or_qw remember mexpr ')' mblock else | |
345 | { | |
3ad73efd Z |
346 | $$ = block_end($3, |
347 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
348 | TOKEN_GETMAD($1,$$,'I'); |
349 | TOKEN_GETMAD($2,$$,'('); | |
350 | TOKEN_GETMAD($5,$$,')'); | |
351 | PL_parser->copline = (line_t)IVAL($1); | |
352 | } | |
353 | | UNLESS lpar_or_qw remember miexpr ')' mblock else | |
354 | { | |
3ad73efd Z |
355 | $$ = block_end($3, |
356 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
357 | TOKEN_GETMAD($1,$$,'I'); |
358 | TOKEN_GETMAD($2,$$,'('); | |
359 | TOKEN_GETMAD($5,$$,')'); | |
360 | PL_parser->copline = (line_t)IVAL($1); | |
361 | } | |
362 | | GIVEN lpar_or_qw remember mydefsv mexpr ')' mblock | |
363 | { | |
364 | $$ = block_end($3, | |
3ad73efd | 365 | newGIVENOP($5, op_scope($7), (PADOFFSET)$4)); |
eae48c89 Z |
366 | PL_parser->copline = (line_t)IVAL($1); |
367 | } | |
368 | | WHEN lpar_or_qw remember mexpr ')' mblock | |
3ad73efd | 369 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } |
eae48c89 | 370 | | DEFAULT block |
3ad73efd | 371 | { $$ = newWHENOP(0, op_scope($2)); } |
eae48c89 Z |
372 | | WHILE lpar_or_qw remember texpr ')' mintro mblock cont |
373 | { | |
374 | $$ = block_end($3, | |
375 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 376 | $4, $7, $8, $6)); |
eae48c89 Z |
377 | TOKEN_GETMAD($1,$$,'W'); |
378 | TOKEN_GETMAD($2,$$,'('); | |
379 | TOKEN_GETMAD($5,$$,')'); | |
380 | PL_parser->copline = (line_t)IVAL($1); | |
381 | } | |
382 | | UNTIL lpar_or_qw remember iexpr ')' mintro mblock cont | |
383 | { | |
384 | $$ = block_end($3, | |
94bf0465 Z |
385 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
386 | $4, $7, $8, $6)); | |
eae48c89 Z |
387 | TOKEN_GETMAD($1,$$,'W'); |
388 | TOKEN_GETMAD($2,$$,'('); | |
389 | TOKEN_GETMAD($5,$$,')'); | |
390 | PL_parser->copline = (line_t)IVAL($1); | |
391 | } | |
392 | | FOR lpar_or_qw remember mnexpr ';' texpr ';' mintro mnexpr ')' | |
393 | mblock | |
394 | { | |
395 | OP *initop = IF_MAD($4 ? $4 : newOP(OP_NULL, 0), $4); | |
396 | OP *forop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 397 | scalar($6), $11, $9, $8); |
eae48c89 Z |
398 | if (initop) { |
399 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
400 | op_append_elem(OP_LINESEQ, | |
401 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
402 | forop)); | |
5f211341 | 403 | } |
eae48c89 Z |
404 | DO_MAD({ forop = newUNOP(OP_NULL, 0, forop); }) |
405 | $$ = block_end($3, forop); | |
406 | TOKEN_GETMAD($1,$$,'3'); | |
407 | TOKEN_GETMAD($2,$$,'('); | |
408 | TOKEN_GETMAD($5,$$,'1'); | |
409 | TOKEN_GETMAD($7,$$,'2'); | |
410 | TOKEN_GETMAD($10,$$,')'); | |
411 | PL_parser->copline = (line_t)IVAL($1); | |
412 | } | |
413 | | FOR MY remember my_scalar lpar_or_qw mexpr ')' mblock cont | |
414 | { | |
94bf0465 | 415 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
eae48c89 Z |
416 | TOKEN_GETMAD($1,$$,'W'); |
417 | TOKEN_GETMAD($2,$$,'d'); | |
418 | TOKEN_GETMAD($5,$$,'('); | |
419 | TOKEN_GETMAD($7,$$,')'); | |
420 | PL_parser->copline = (line_t)IVAL($1); | |
421 | } | |
422 | | FOR scalar lpar_or_qw remember mexpr ')' mblock cont | |
423 | { | |
94bf0465 | 424 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 425 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
eae48c89 Z |
426 | TOKEN_GETMAD($1,$$,'W'); |
427 | TOKEN_GETMAD($3,$$,'('); | |
428 | TOKEN_GETMAD($6,$$,')'); | |
429 | PL_parser->copline = (line_t)IVAL($1); | |
430 | } | |
431 | | FOR lpar_or_qw remember mexpr ')' mblock cont | |
432 | { | |
433 | $$ = block_end($3, | |
94bf0465 | 434 | newFOROP(0, (OP*)NULL, $4, $6, $7)); |
eae48c89 Z |
435 | TOKEN_GETMAD($1,$$,'W'); |
436 | TOKEN_GETMAD($2,$$,'('); | |
437 | TOKEN_GETMAD($5,$$,')'); | |
438 | PL_parser->copline = (line_t)IVAL($1); | |
439 | } | |
440 | | block cont | |
441 | { | |
442 | /* a block is a loop that happens once */ | |
443 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 444 | (OP*)NULL, $1, $2, 0); |
eae48c89 Z |
445 | } |
446 | | PACKAGE WORD WORD '{' remember | |
447 | { | |
448 | int save_3_latefree = $3->op_latefree; | |
449 | $3->op_latefree = 1; | |
450 | package($3); | |
451 | $3->op_latefree = save_3_latefree; | |
452 | if ($2) { | |
453 | int save_2_latefree = $2->op_latefree; | |
454 | $2->op_latefree = 1; | |
455 | package_version($2); | |
456 | $2->op_latefree = save_2_latefree; | |
457 | } | |
458 | } | |
459 | stmtseq '}' | |
460 | { | |
461 | /* a block is a loop that happens once */ | |
94bf0465 | 462 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
eae48c89 Z |
463 | (OP*)NULL, block_end($5, $7), (OP*)NULL, 0); |
464 | op_free($3); | |
465 | if ($2) | |
466 | op_free($2); | |
467 | TOKEN_GETMAD($4,$$,'{'); | |
468 | TOKEN_GETMAD($8,$$,'}'); | |
469 | if (PL_parser->copline > (line_t)IVAL($4)) | |
470 | PL_parser->copline = (line_t)IVAL($4); | |
471 | } | |
472 | | sideff ';' | |
473 | { | |
474 | PL_parser->expect = XSTATE; | |
475 | $$ = $1; | |
476 | TOKEN_GETMAD($2,$$,';'); | |
477 | } | |
478 | | ';' | |
479 | { | |
480 | PL_parser->expect = XSTATE; | |
481 | $$ = IF_MAD(newOP(OP_NULL, 0), (OP*)NULL); | |
482 | TOKEN_GETMAD($1,$$,';'); | |
483 | PL_parser->copline = NOLINE; | |
5f211341 | 484 | } |
8d063cd8 LW |
485 | ; |
486 | ||
891be019 | 487 | /* An expression which may have a side-effect */ |
a687059c | 488 | sideff : error |
bcabcc50 | 489 | { $$ = (OP*)NULL; } |
a687059c | 490 | | expr |
79072805 | 491 | { $$ = $1; } |
a687059c | 492 | | expr IF expr |
f05e27e5 DM |
493 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
494 | TOKEN_GETMAD($2,$$,'i'); | |
495 | } | |
a687059c | 496 | | expr UNLESS expr |
f05e27e5 DM |
497 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
498 | TOKEN_GETMAD($2,$$,'i'); | |
499 | } | |
a687059c | 500 | | expr WHILE expr |
f05e27e5 DM |
501 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
502 | TOKEN_GETMAD($2,$$,'w'); | |
503 | } | |
55497cff | 504 | | expr UNTIL iexpr |
f05e27e5 DM |
505 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
506 | TOKEN_GETMAD($2,$$,'w'); | |
507 | } | |
ecca16b0 | 508 | | expr FOR expr |
94bf0465 | 509 | { $$ = newFOROP(0, (OP*)NULL, $3, $1, (OP*)NULL); |
eae48c89 | 510 | TOKEN_GETMAD($2,$$,'w'); |
94bf0465 | 511 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 512 | } |
f20dcd76 | 513 | | expr WHEN expr |
3ad73efd | 514 | { $$ = newWHENOP($3, op_scope($1)); } |
79072805 LW |
515 | ; |
516 | ||
891be019 | 517 | /* else and elsif blocks */ |
79072805 | 518 | else : /* NULL */ |
bcabcc50 | 519 | { $$ = (OP*)NULL; } |
55497cff | 520 | | ELSE mblock |
3ad73efd Z |
521 | { |
522 | ($2)->op_flags |= OPf_PARENS; | |
523 | $$ = op_scope($2); | |
f05e27e5 DM |
524 | TOKEN_GETMAD($1,$$,'o'); |
525 | } | |
ea25a9b2 | 526 | | ELSIF lpar_or_qw mexpr ')' mblock else |
53a7735b | 527 | { PL_parser->copline = (line_t)IVAL($1); |
3ad73efd Z |
528 | $$ = newCONDOP(0, |
529 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
530 | op_scope($5), $6); | |
531 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 DM |
532 | TOKEN_GETMAD($1,$$,'I'); |
533 | TOKEN_GETMAD($2,$$,'('); | |
534 | TOKEN_GETMAD($4,$$,')'); | |
535 | } | |
79072805 LW |
536 | ; |
537 | ||
891be019 | 538 | /* Continue blocks */ |
79072805 | 539 | cont : /* NULL */ |
bcabcc50 | 540 | { $$ = (OP*)NULL; } |
79072805 | 541 | | CONTINUE block |
3ad73efd Z |
542 | { |
543 | $$ = op_scope($2); | |
f05e27e5 DM |
544 | TOKEN_GETMAD($1,$$,'o'); |
545 | } | |
79072805 LW |
546 | ; |
547 | ||
a034e688 DM |
548 | /* determine whether there are any new my declarations */ |
549 | mintro : /* NULL */ | |
550 | { $$ = (PL_min_intro_pending && | |
551 | PL_max_intro_pending >= PL_min_intro_pending); | |
552 | intro_my(); } | |
553 | ||
891be019 | 554 | /* Normal expression */ |
8d063cd8 | 555 | nexpr : /* NULL */ |
bcabcc50 | 556 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
557 | | sideff |
558 | ; | |
559 | ||
891be019 | 560 | /* Boolean expression */ |
8d063cd8 | 561 | texpr : /* NULL means true */ |
f05e27e5 DM |
562 | { YYSTYPE tmplval; |
563 | (void)scan_num("1", &tmplval); | |
564 | $$ = tmplval.opval; } | |
8d063cd8 LW |
565 | | expr |
566 | ; | |
567 | ||
891be019 | 568 | /* Inverted boolean expression */ |
55497cff | 569 | iexpr : expr |
570 | { $$ = invert(scalar($1)); } | |
571 | ; | |
572 | ||
891be019 | 573 | /* Expression with its own lexical scope */ |
55497cff | 574 | mexpr : expr |
bbce6d69 | 575 | { $$ = $1; intro_my(); } |
576 | ; | |
577 | ||
578 | mnexpr : nexpr | |
579 | { $$ = $1; intro_my(); } | |
55497cff | 580 | ; |
581 | ||
55497cff | 582 | miexpr : iexpr |
bbce6d69 | 583 | { $$ = $1; intro_my(); } |
55497cff | 584 | ; |
585 | ||
891be019 | 586 | /* Optional "MAIN:"-style loop labels */ |
8d063cd8 | 587 | label : /* empty */ |
f05e27e5 DM |
588 | { |
589 | #ifdef MAD | |
590 | YYSTYPE tmplval; | |
1a9a51d4 | 591 | tmplval.pval = NULL; |
f05e27e5 DM |
592 | $$ = newTOKEN(OP_NULL, tmplval, 0); |
593 | #else | |
1a9a51d4 | 594 | $$ = NULL; |
f05e27e5 DM |
595 | #endif |
596 | } | |
32c2e4fb | 597 | | LABEL |
8d063cd8 LW |
598 | ; |
599 | ||
44a8e56a | 600 | formname: WORD { $$ = $1; } |
bcabcc50 | 601 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
602 | ; |
603 | ||
fa83b5b6 | 604 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
605 | { $$ = start_subparse(FALSE, 0); |
606 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 607 | |
28757baa | 608 | ; |
609 | ||
610 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
611 | { $$ = start_subparse(FALSE, CVf_ANON); |
612 | SAVEFREESV(PL_compcv); } | |
28757baa | 613 | ; |
614 | ||
44a8e56a | 615 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
616 | { $$ = start_subparse(TRUE, 0); |
617 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 618 | ; |
619 | ||
891be019 | 620 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 621 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 622 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
623 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
624 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 625 | CvSPECIAL_on(PL_compcv); |
28757baa | 626 | $$ = $1; } |
a0d0e21e LW |
627 | ; |
628 | ||
891be019 | 629 | /* Subroutine prototype */ |
4633a7c4 | 630 | proto : /* NULL */ |
bcabcc50 | 631 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
632 | | THING |
633 | ; | |
28757baa | 634 | |
891be019 | 635 | /* Optional list of subroutine attributes */ |
09bef843 | 636 | subattrlist: /* NULL */ |
bcabcc50 | 637 | { $$ = (OP*)NULL; } |
09bef843 | 638 | | COLONATTR THING |
f05e27e5 DM |
639 | { $$ = $2; |
640 | TOKEN_GETMAD($1,$$,':'); | |
641 | } | |
09bef843 | 642 | | COLONATTR |
f05e27e5 DM |
643 | { $$ = IF_MAD( |
644 | newOP(OP_NULL, 0), | |
bcabcc50 | 645 | (OP*)NULL |
f05e27e5 DM |
646 | ); |
647 | TOKEN_GETMAD($1,$$,':'); | |
648 | } | |
09bef843 SB |
649 | ; |
650 | ||
891be019 | 651 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 652 | myattrlist: COLONATTR THING |
f05e27e5 DM |
653 | { $$ = $2; |
654 | TOKEN_GETMAD($1,$$,':'); | |
655 | } | |
09bef843 | 656 | | COLONATTR |
f05e27e5 DM |
657 | { $$ = IF_MAD( |
658 | newOP(OP_NULL, 0), | |
bcabcc50 | 659 | (OP*)NULL |
f05e27e5 DM |
660 | ); |
661 | TOKEN_GETMAD($1,$$,':'); | |
662 | } | |
09bef843 SB |
663 | ; |
664 | ||
891be019 | 665 | /* Subroutine body - either null or a block */ |
28757baa | 666 | subbody : block { $$ = $1; } |
f05e27e5 DM |
667 | | ';' { $$ = IF_MAD( |
668 | newOP(OP_NULL,0), | |
bcabcc50 | 669 | (OP*)NULL |
f05e27e5 | 670 | ); |
53a7735b | 671 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
672 | TOKEN_GETMAD($1,$$,';'); |
673 | } | |
8d063cd8 LW |
674 | ; |
675 | ||
891be019 | 676 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 677 | expr : expr ANDOP expr |
f05e27e5 DM |
678 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
679 | TOKEN_GETMAD($2,$$,'o'); | |
680 | } | |
a0d0e21e | 681 | | expr OROP expr |
f05e27e5 DM |
682 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
683 | TOKEN_GETMAD($2,$$,'o'); | |
684 | } | |
c963b151 | 685 | | expr DOROP expr |
f05e27e5 DM |
686 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
687 | TOKEN_GETMAD($2,$$,'o'); | |
688 | } | |
fad39ff1 | 689 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
690 | ; |
691 | ||
891be019 | 692 | /* Expressions are a list of terms joined by commas */ |
a0d0e21e | 693 | argexpr : argexpr ',' |
f05e27e5 DM |
694 | { |
695 | #ifdef MAD | |
696 | OP* op = newNULLLIST(); | |
697 | token_getmad($2,op,','); | |
2fcb4757 | 698 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
699 | #else |
700 | $$ = $1; | |
701 | #endif | |
702 | } | |
a0d0e21e | 703 | | argexpr ',' term |
f05e27e5 | 704 | { |
29522234 | 705 | OP* term = $3; |
f05e27e5 | 706 | DO_MAD( |
29522234 DM |
707 | term = newUNOP(OP_NULL, 0, term); |
708 | token_getmad($2,term,','); | |
f05e27e5 | 709 | ) |
2fcb4757 | 710 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 711 | } |
fad39ff1 | 712 | | term %prec PREC_LOW |
8d063cd8 LW |
713 | ; |
714 | ||
891be019 | 715 | /* List operators */ |
ad4673e5 | 716 | listop : LSTOP indirob argexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 717 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 718 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
719 | TOKEN_GETMAD($1,$$,'o'); |
720 | } | |
891be019 | 721 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 722 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 723 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
724 | TOKEN_GETMAD($1,$$,'o'); |
725 | TOKEN_GETMAD($2,$$,'('); | |
726 | TOKEN_GETMAD($5,$$,')'); | |
727 | } | |
ea25a9b2 | 728 | | term ARROW method lpar_or_qw listexprcom ')' /* $foo->bar(list) */ |
4633a7c4 | 729 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
730 | op_append_elem(OP_LIST, |
731 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
732 | newUNOP(OP_METHOD, 0, $3))); |
733 | TOKEN_GETMAD($2,$$,'A'); | |
734 | TOKEN_GETMAD($4,$$,'('); | |
735 | TOKEN_GETMAD($6,$$,')'); | |
736 | } | |
891be019 | 737 | | term ARROW method /* $foo->bar */ |
b1524f17 | 738 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 739 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
740 | newUNOP(OP_METHOD, 0, $3))); |
741 | TOKEN_GETMAD($2,$$,'A'); | |
742 | } | |
891be019 | 743 | | METHOD indirob listexpr /* new Class @args */ |
4633a7c4 | 744 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
745 | op_append_elem(OP_LIST, |
746 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
747 | newUNOP(OP_METHOD, 0, $1))); |
748 | } | |
891be019 | 749 | | FUNCMETH indirob '(' listexprcom ')' /* method $object (@args) */ |
4633a7c4 | 750 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
751 | op_append_elem(OP_LIST, |
752 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
753 | newUNOP(OP_METHOD, 0, $1))); |
754 | TOKEN_GETMAD($3,$$,'('); | |
755 | TOKEN_GETMAD($5,$$,')'); | |
756 | } | |
891be019 | 757 | | LSTOP listexpr /* print @args */ |
f05e27e5 DM |
758 | { $$ = convert(IVAL($1), 0, $2); |
759 | TOKEN_GETMAD($1,$$,'o'); | |
760 | } | |
891be019 | 761 | | FUNC '(' listexprcom ')' /* print (@args) */ |
f05e27e5 DM |
762 | { $$ = convert(IVAL($1), 0, $3); |
763 | TOKEN_GETMAD($1,$$,'o'); | |
764 | TOKEN_GETMAD($2,$$,'('); | |
765 | TOKEN_GETMAD($4,$$,')'); | |
766 | } | |
718a7425 | 767 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 768 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 769 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
891be019 | 770 | listexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 771 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
772 | op_append_elem(OP_LIST, |
773 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 774 | } |
a687059c LW |
775 | ; |
776 | ||
891be019 | 777 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
778 | method : METHOD |
779 | | scalar | |
780 | ; | |
781 | ||
891be019 SC |
782 | /* Some kind of subscripted expression */ |
783 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
784 | /* In this and all the hash accessors, ';' is | |
785 | * provided by the tokeniser */ | |
264e1af3 | 786 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 787 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
788 | TOKEN_GETMAD($2,$$,'{'); |
789 | TOKEN_GETMAD($4,$$,';'); | |
790 | TOKEN_GETMAD($5,$$,'}'); | |
791 | } | |
891be019 | 792 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
793 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
794 | TOKEN_GETMAD($2,$$,'['); | |
795 | TOKEN_GETMAD($4,$$,']'); | |
796 | } | |
891be019 | 797 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
798 | { $$ = newBINOP(OP_AELEM, 0, |
799 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
800 | scalar($4)); |
801 | TOKEN_GETMAD($2,$$,'a'); | |
802 | TOKEN_GETMAD($3,$$,'['); | |
803 | TOKEN_GETMAD($5,$$,']'); | |
804 | } | |
891be019 | 805 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
806 | { $$ = newBINOP(OP_AELEM, 0, |
807 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
808 | scalar($3)); |
809 | TOKEN_GETMAD($2,$$,'['); | |
810 | TOKEN_GETMAD($4,$$,']'); | |
811 | } | |
891be019 | 812 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 | 813 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 814 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
815 | TOKEN_GETMAD($2,$$,'{'); |
816 | TOKEN_GETMAD($4,$$,';'); | |
817 | TOKEN_GETMAD($5,$$,'}'); | |
818 | } | |
891be019 | 819 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
820 | { $$ = newBINOP(OP_HELEM, 0, |
821 | ref(newHVREF($1),OP_RV2HV), | |
822 | jmaybe($4)); | |
53a7735b | 823 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
824 | TOKEN_GETMAD($2,$$,'a'); |
825 | TOKEN_GETMAD($3,$$,'{'); | |
826 | TOKEN_GETMAD($5,$$,';'); | |
827 | TOKEN_GETMAD($6,$$,'}'); | |
828 | } | |
891be019 | 829 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
830 | { $$ = newBINOP(OP_HELEM, 0, |
831 | ref(newHVREF($1),OP_RV2HV), | |
832 | jmaybe($3)); | |
53a7735b | 833 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
834 | TOKEN_GETMAD($2,$$,'{'); |
835 | TOKEN_GETMAD($4,$$,';'); | |
836 | TOKEN_GETMAD($5,$$,'}'); | |
837 | } | |
891be019 | 838 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 839 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
840 | newCVREF(0, scalar($1))); |
841 | TOKEN_GETMAD($2,$$,'a'); | |
842 | TOKEN_GETMAD($3,$$,'('); | |
843 | TOKEN_GETMAD($4,$$,')'); | |
844 | } | |
891be019 | 845 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 846 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 847 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
848 | newCVREF(0, scalar($1)))); |
849 | TOKEN_GETMAD($2,$$,'a'); | |
850 | TOKEN_GETMAD($3,$$,'('); | |
851 | TOKEN_GETMAD($5,$$,')'); | |
852 | } | |
fad39ff1 | 853 | |
ea25a9b2 | 854 | | subscripted lpar_or_qw expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 855 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 856 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
857 | newCVREF(0, scalar($1)))); |
858 | TOKEN_GETMAD($2,$$,'('); | |
859 | TOKEN_GETMAD($4,$$,')'); | |
860 | } | |
ea25a9b2 | 861 | | subscripted lpar_or_qw ')' /* $foo->{bar}->() */ |
fad39ff1 | 862 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
863 | newCVREF(0, scalar($1))); |
864 | TOKEN_GETMAD($2,$$,'('); | |
865 | TOKEN_GETMAD($3,$$,')'); | |
866 | } | |
9a9798c2 | 867 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
868 | { $$ = newSLICEOP(0, $5, $2); |
869 | TOKEN_GETMAD($1,$$,'('); | |
870 | TOKEN_GETMAD($3,$$,')'); | |
871 | TOKEN_GETMAD($4,$$,'['); | |
872 | TOKEN_GETMAD($6,$$,']'); | |
873 | } | |
ea25a9b2 Z |
874 | | QWLIST '[' expr ']' /* list literal slice */ |
875 | { $$ = newSLICEOP(0, $3, $1); | |
876 | TOKEN_GETMAD($2,$$,'['); | |
877 | TOKEN_GETMAD($4,$$,']'); | |
878 | } | |
9a9798c2 | 879 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 880 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
881 | TOKEN_GETMAD($1,$$,'('); |
882 | TOKEN_GETMAD($2,$$,')'); | |
883 | TOKEN_GETMAD($3,$$,'['); | |
884 | TOKEN_GETMAD($5,$$,']'); | |
885 | } | |
891be019 | 886 | ; |
fad39ff1 | 887 | |
891be019 | 888 | /* Binary operators between terms */ |
f05e27e5 DM |
889 | termbinop: term ASSIGNOP term /* $x = $y */ |
890 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
891 | TOKEN_GETMAD($2,$$,'o'); | |
892 | } | |
891be019 | 893 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
894 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
895 | TOKEN_GETMAD($2,$$,'o'); | |
896 | } | |
891be019 | 897 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 898 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 899 | scalar($1); |
f05e27e5 DM |
900 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
901 | TOKEN_GETMAD($2,$$,'o'); | |
902 | } | |
891be019 | 903 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
904 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
905 | TOKEN_GETMAD($2,$$,'o'); | |
906 | } | |
891be019 | 907 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
908 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
909 | TOKEN_GETMAD($2,$$,'o'); | |
910 | } | |
891be019 | 911 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
912 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
913 | TOKEN_GETMAD($2,$$,'o'); | |
914 | } | |
891be019 | 915 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
916 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
917 | TOKEN_GETMAD($2,$$,'o'); | |
918 | } | |
891be019 | 919 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
920 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
921 | TOKEN_GETMAD($2,$$,'o'); | |
922 | } | |
891be019 | 923 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
924 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
925 | TOKEN_GETMAD($2,$$,'o'); | |
926 | } | |
891be019 | 927 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
928 | { |
929 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 930 | DO_MAD({ |
f05e27e5 DM |
931 | UNOP *op; |
932 | op = (UNOP*)$$; | |
933 | op = (UNOP*)op->op_first; /* get to flop */ | |
934 | op = (UNOP*)op->op_first; /* get to flip */ | |
935 | op = (UNOP*)op->op_first; /* get to range */ | |
936 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 937 | }) |
f05e27e5 | 938 | } |
891be019 | 939 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
940 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
941 | TOKEN_GETMAD($2,$$,'o'); | |
942 | } | |
891be019 | 943 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
944 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
945 | TOKEN_GETMAD($2,$$,'o'); | |
946 | } | |
c963b151 | 947 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
948 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
949 | TOKEN_GETMAD($2,$$,'o'); | |
950 | } | |
891be019 | 951 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
952 | { $$ = bind_match(IVAL($2), $1, $3); |
953 | TOKEN_GETMAD($2, | |
954 | ($$->op_type == OP_NOT | |
955 | ? ((UNOP*)$$)->op_first : $$), | |
956 | '~'); | |
957 | } | |
891be019 | 958 | ; |
8d063cd8 | 959 | |
891be019 SC |
960 | /* Unary operators and terms */ |
961 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
962 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
963 | TOKEN_GETMAD($1,$$,'o'); | |
964 | } | |
891be019 | 965 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
966 | { $$ = IF_MAD( |
967 | newUNOP(OP_NULL, 0, $2), | |
968 | $2 | |
969 | ); | |
970 | TOKEN_GETMAD($1,$$,'+'); | |
971 | } | |
891be019 | 972 | | '!' term /* !$x */ |
f05e27e5 DM |
973 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
974 | TOKEN_GETMAD($1,$$,'o'); | |
975 | } | |
891be019 | 976 | | '~' term /* ~$x */ |
f05e27e5 DM |
977 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
978 | TOKEN_GETMAD($1,$$,'o'); | |
979 | } | |
891be019 | 980 | | term POSTINC /* $x++ */ |
79072805 | 981 | { $$ = newUNOP(OP_POSTINC, 0, |
3ad73efd | 982 | op_lvalue(scalar($1), OP_POSTINC)); |
f05e27e5 DM |
983 | TOKEN_GETMAD($2,$$,'o'); |
984 | } | |
891be019 | 985 | | term POSTDEC /* $x-- */ |
79072805 | 986 | { $$ = newUNOP(OP_POSTDEC, 0, |
3ad73efd | 987 | op_lvalue(scalar($1), OP_POSTDEC)); |
f05e27e5 DM |
988 | TOKEN_GETMAD($2,$$,'o'); |
989 | } | |
891be019 | 990 | | PREINC term /* ++$x */ |
79072805 | 991 | { $$ = newUNOP(OP_PREINC, 0, |
3ad73efd | 992 | op_lvalue(scalar($2), OP_PREINC)); |
f05e27e5 DM |
993 | TOKEN_GETMAD($1,$$,'o'); |
994 | } | |
891be019 | 995 | | PREDEC term /* --$x */ |
79072805 | 996 | { $$ = newUNOP(OP_PREDEC, 0, |
3ad73efd | 997 | op_lvalue(scalar($2), OP_PREDEC)); |
f05e27e5 DM |
998 | TOKEN_GETMAD($1,$$,'o'); |
999 | } | |
891be019 SC |
1000 | |
1001 | ; | |
1002 | ||
1003 | /* Constructors for anonymous data */ | |
1004 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1005 | { $$ = newANONLIST($2); |
1006 | TOKEN_GETMAD($1,$$,'['); | |
1007 | TOKEN_GETMAD($3,$$,']'); | |
1008 | } | |
891be019 | 1009 | | '[' ']' |
bcabcc50 | 1010 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1011 | TOKEN_GETMAD($1,$$,'['); |
1012 | TOKEN_GETMAD($2,$$,']'); | |
1013 | } | |
891be019 | 1014 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1015 | { $$ = newANONHASH($2); |
1016 | TOKEN_GETMAD($1,$$,'{'); | |
1017 | TOKEN_GETMAD($3,$$,';'); | |
1018 | TOKEN_GETMAD($4,$$,'}'); | |
1019 | } | |
891be019 | 1020 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1021 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1022 | TOKEN_GETMAD($1,$$,'{'); |
1023 | TOKEN_GETMAD($2,$$,';'); | |
1024 | TOKEN_GETMAD($3,$$,'}'); | |
1025 | } | |
718a7425 | 1026 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1027 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1028 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1029 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1030 | OP_GETMAD($3,$$,'s'); |
1031 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1032 | } |
891be019 SC |
1033 | |
1034 | ; | |
1035 | ||
1036 | /* Things called with "do" */ | |
1037 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1038 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1039 | TOKEN_GETMAD($1,$$,'o'); |
1040 | } | |
891be019 | 1041 | | DO block %prec '(' /* do { code */ |
3ad73efd | 1042 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2)); |
f05e27e5 DM |
1043 | TOKEN_GETMAD($1,$$,'D'); |
1044 | } | |
ea25a9b2 | 1045 | | DO WORD lpar_or_qw ')' /* do somesub() */ |
891be019 SC |
1046 | { $$ = newUNOP(OP_ENTERSUB, |
1047 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1048 | op_prepend_elem(OP_LIST, |
891be019 SC |
1049 | scalar(newCVREF( |
1050 | (OPpENTERSUB_AMPER<<8), | |
1051 | scalar($2) | |
bcabcc50 | 1052 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1053 | TOKEN_GETMAD($1,$$,'o'); |
1054 | TOKEN_GETMAD($3,$$,'('); | |
1055 | TOKEN_GETMAD($4,$$,')'); | |
1056 | } | |
ea25a9b2 | 1057 | | DO WORD lpar_or_qw expr ')' /* do somesub(@args) */ |
891be019 SC |
1058 | { $$ = newUNOP(OP_ENTERSUB, |
1059 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1060 | op_append_elem(OP_LIST, |
891be019 SC |
1061 | $4, |
1062 | scalar(newCVREF( | |
1063 | (OPpENTERSUB_AMPER<<8), | |
1064 | scalar($2) | |
f05e27e5 DM |
1065 | )))); dep(); |
1066 | TOKEN_GETMAD($1,$$,'o'); | |
1067 | TOKEN_GETMAD($3,$$,'('); | |
1068 | TOKEN_GETMAD($5,$$,')'); | |
1069 | } | |
ea25a9b2 | 1070 | | DO scalar lpar_or_qw ')' /* do $subref () */ |
891be019 | 1071 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1072 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1073 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1074 | TOKEN_GETMAD($1,$$,'o'); |
1075 | TOKEN_GETMAD($3,$$,'('); | |
1076 | TOKEN_GETMAD($4,$$,')'); | |
1077 | } | |
ea25a9b2 | 1078 | | DO scalar lpar_or_qw expr ')' /* do $subref (@args) */ |
891be019 | 1079 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1080 | op_prepend_elem(OP_LIST, |
891be019 | 1081 | $4, |
f05e27e5 DM |
1082 | scalar(newCVREF(0,scalar($2))))); dep(); |
1083 | TOKEN_GETMAD($1,$$,'o'); | |
1084 | TOKEN_GETMAD($3,$$,'('); | |
1085 | TOKEN_GETMAD($5,$$,')'); | |
1086 | } | |
891be019 SC |
1087 | |
1088 | ; | |
1089 | ||
1090 | term : termbinop | |
1091 | | termunop | |
1092 | | anonymous | |
1093 | | termdo | |
e9bdcc27 | 1094 | | term '?' term ':' term |
f05e27e5 DM |
1095 | { $$ = newCONDOP(0, $1, $3, $5); |
1096 | TOKEN_GETMAD($2,$$,'?'); | |
1097 | TOKEN_GETMAD($4,$$,':'); | |
1098 | } | |
891be019 | 1099 | | REFGEN term /* \$x, \@y, \%z */ |
3ad73efd | 1100 | { $$ = newUNOP(OP_REFGEN, 0, op_lvalue($2,OP_REFGEN)); |
f05e27e5 DM |
1101 | TOKEN_GETMAD($1,$$,'o'); |
1102 | } | |
09bef843 SB |
1103 | | myattrterm %prec UNIOP |
1104 | { $$ = $1; } | |
1105 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1106 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1107 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1108 | } |
a0d0e21e | 1109 | | '(' expr ')' |
f05e27e5 DM |
1110 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1111 | TOKEN_GETMAD($1,$$,'('); | |
1112 | TOKEN_GETMAD($3,$$,')'); | |
1113 | } | |
ea25a9b2 Z |
1114 | | QWLIST |
1115 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1116 | | '(' ')' |
f05e27e5 DM |
1117 | { $$ = sawparens(newNULLLIST()); |
1118 | TOKEN_GETMAD($1,$$,'('); | |
1119 | TOKEN_GETMAD($2,$$,')'); | |
1120 | } | |
79072805 | 1121 | | scalar %prec '(' |
8d063cd8 | 1122 | { $$ = $1; } |
79072805 | 1123 | | star %prec '(' |
8d063cd8 | 1124 | { $$ = $1; } |
79072805 | 1125 | | hsh %prec '(' |
8d063cd8 | 1126 | { $$ = $1; } |
79072805 | 1127 | | ary %prec '(' |
8d063cd8 | 1128 | { $$ = $1; } |
891be019 | 1129 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1130 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1131 | | subscripted |
1132 | { $$ = $1; } | |
891be019 | 1133 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1134 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1135 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1136 | newLISTOP(OP_ASLICE, 0, |
1137 | list($3), | |
f05e27e5 DM |
1138 | ref($1, OP_ASLICE))); |
1139 | TOKEN_GETMAD($2,$$,'['); | |
1140 | TOKEN_GETMAD($4,$$,']'); | |
1141 | } | |
891be019 | 1142 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1143 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1144 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1145 | newLISTOP(OP_HSLICE, 0, |
1146 | list($3), | |
a0d0e21e | 1147 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1148 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1149 | TOKEN_GETMAD($2,$$,'{'); |
1150 | TOKEN_GETMAD($4,$$,';'); | |
1151 | TOKEN_GETMAD($5,$$,'}'); | |
1152 | } | |
79072805 LW |
1153 | | THING %prec '(' |
1154 | { $$ = $1; } | |
891be019 | 1155 | | amper /* &foo; */ |
c07a80fd | 1156 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ea25a9b2 | 1157 | | amper lpar_or_qw ')' /* &foo() */ |
f05e27e5 DM |
1158 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1159 | TOKEN_GETMAD($2,$$,'('); | |
1160 | TOKEN_GETMAD($3,$$,')'); | |
1161 | } | |
ea25a9b2 | 1162 | | amper lpar_or_qw expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1163 | { |
1164 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1165 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1166 | DO_MAD({ |
f05e27e5 DM |
1167 | OP* op = $$; |
1168 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1169 | op = (OP*)op->op_madprop->mad_val; | |
1170 | } | |
1171 | token_getmad($2,op,'('); | |
1172 | token_getmad($4,op,')'); | |
035e2bcc | 1173 | }) |
f05e27e5 | 1174 | } |
891be019 | 1175 | | NOAMP WORD listexpr /* foo(@args) */ |
a0d0e21e | 1176 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1177 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1178 | TOKEN_GETMAD($1,$$,'o'); |
1179 | } | |
891be019 | 1180 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1181 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1182 | PL_hints |= HINT_BLOCK_SCOPE; | |
1183 | TOKEN_GETMAD($1,$$,'o'); | |
1184 | } | |
a0d0e21e | 1185 | | LOOPEX term |
f05e27e5 DM |
1186 | { $$ = newLOOPEX(IVAL($1),$2); |
1187 | TOKEN_GETMAD($1,$$,'o'); | |
1188 | } | |
891be019 | 1189 | | NOTOP argexpr /* not $foo */ |
f05e27e5 DM |
1190 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1191 | TOKEN_GETMAD($1,$$,'o'); | |
1192 | } | |
891be019 | 1193 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1194 | { $$ = newOP(IVAL($1), 0); |
1195 | TOKEN_GETMAD($1,$$,'o'); | |
1196 | } | |
1197 | | UNIOP block /* eval { foo }* */ | |
1198 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1199 | TOKEN_GETMAD($1,$$,'o'); | |
1200 | } | |
891be019 | 1201 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1202 | { $$ = newUNOP(IVAL($1), 0, $2); |
1203 | TOKEN_GETMAD($1,$$,'o'); | |
1204 | } | |
d2fdf8fd RGS |
1205 | | REQUIRE /* require, $_ implied */ |
1206 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1207 | TOKEN_GETMAD($1,$$,'o'); | |
1208 | } | |
1209 | | REQUIRE term /* require Foo */ | |
1210 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1211 | TOKEN_GETMAD($1,$$,'o'); | |
1212 | } | |
3cd0a11a RGS |
1213 | | UNIOPSUB |
1214 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1215 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1216 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1217 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1218 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1219 | { $$ = newOP(IVAL($1), 0); |
1220 | TOKEN_GETMAD($1,$$,'o'); | |
1221 | } | |
ae986130 | 1222 | | FUNC0 '(' ')' |
f05e27e5 DM |
1223 | { $$ = newOP(IVAL($1), 0); |
1224 | TOKEN_GETMAD($1,$$,'o'); | |
1225 | TOKEN_GETMAD($2,$$,'('); | |
1226 | TOKEN_GETMAD($3,$$,')'); | |
1227 | } | |
891be019 | 1228 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1229 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1230 | scalar($1)); } |
891be019 | 1231 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1232 | { $$ = (IVAL($1) == OP_NOT) |
1233 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1234 | : newOP(IVAL($1), OPf_SPECIAL); | |
1235 | ||
1236 | TOKEN_GETMAD($1,$$,'o'); | |
1237 | TOKEN_GETMAD($2,$$,'('); | |
1238 | TOKEN_GETMAD($3,$$,')'); | |
1239 | } | |
891be019 | 1240 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1241 | { $$ = newUNOP(IVAL($1), 0, $3); |
1242 | TOKEN_GETMAD($1,$$,'o'); | |
1243 | TOKEN_GETMAD($2,$$,'('); | |
1244 | TOKEN_GETMAD($4,$$,')'); | |
1245 | } | |
1246 | | PMFUNC '(' argexpr ')' /* m//, s///, tr/// */ | |
1247 | { $$ = pmruntime($1, $3, 1); | |
1248 | TOKEN_GETMAD($2,$$,'('); | |
1249 | TOKEN_GETMAD($4,$$,')'); | |
1250 | } | |
79072805 | 1251 | | WORD |
378cc40b | 1252 | | listop |
be25f609 | 1253 | | YADAYADA |
1254 | { | |
1255 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1256 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1257 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1258 | } |
88e1f1a2 | 1259 | | PLUGEXPR |
8d063cd8 LW |
1260 | ; |
1261 | ||
891be019 | 1262 | /* "my" declarations, with optional attributes */ |
09bef843 | 1263 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1264 | { $$ = my_attrs($2,$3); |
1265 | DO_MAD( | |
1266 | token_getmad($1,$$,'d'); | |
1267 | append_madprops($3->op_madprop, $$, 'a'); | |
1268 | $3->op_madprop = 0; | |
1269 | ) | |
1270 | } | |
09bef843 | 1271 | | MY myterm |
f05e27e5 DM |
1272 | { $$ = localize($2,IVAL($1)); |
1273 | TOKEN_GETMAD($1,$$,'d'); | |
1274 | } | |
09bef843 SB |
1275 | ; |
1276 | ||
891be019 | 1277 | /* Things that can be "my"'d */ |
09bef843 | 1278 | myterm : '(' expr ')' |
f05e27e5 DM |
1279 | { $$ = sawparens($2); |
1280 | TOKEN_GETMAD($1,$$,'('); | |
1281 | TOKEN_GETMAD($3,$$,')'); | |
1282 | } | |
09bef843 | 1283 | | '(' ')' |
f05e27e5 DM |
1284 | { $$ = sawparens(newNULLLIST()); |
1285 | TOKEN_GETMAD($1,$$,'('); | |
1286 | TOKEN_GETMAD($2,$$,')'); | |
1287 | } | |
09bef843 SB |
1288 | | scalar %prec '(' |
1289 | { $$ = $1; } | |
1290 | | hsh %prec '(' | |
1291 | { $$ = $1; } | |
1292 | | ary %prec '(' | |
1293 | { $$ = $1; } | |
1294 | ; | |
1295 | ||
891be019 | 1296 | /* Basic list expressions */ |
fad39ff1 | 1297 | listexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1298 | { $$ = (OP*)NULL; } |
fad39ff1 | 1299 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
1300 | { $$ = $1; } |
1301 | ; | |
1302 | ||
1303 | listexprcom: /* NULL */ | |
bcabcc50 | 1304 | { $$ = (OP*)NULL; } |
79072805 LW |
1305 | | expr |
1306 | { $$ = $1; } | |
1307 | ; | |
1308 | ||
ea25a9b2 Z |
1309 | lpar_or_qw: '(' |
1310 | { $$ = $1; } | |
1311 | | QWLIST | |
f7e3d326 | 1312 | { munge_qwlist_to_paren_list($1); } |
ea25a9b2 Z |
1313 | '(' |
1314 | { $$ = $3; } | |
1315 | ; | |
1316 | ||
891be019 SC |
1317 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1318 | lexical */ | |
55497cff | 1319 | my_scalar: scalar |
12bd6ede | 1320 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1321 | ; |
1322 | ||
79072805 | 1323 | amper : '&' indirob |
f05e27e5 DM |
1324 | { $$ = newCVREF(IVAL($1),$2); |
1325 | TOKEN_GETMAD($1,$$,'&'); | |
1326 | } | |
a687059c LW |
1327 | ; |
1328 | ||
79072805 | 1329 | scalar : '$' indirob |
f05e27e5 DM |
1330 | { $$ = newSVREF($2); |
1331 | TOKEN_GETMAD($1,$$,'$'); | |
1332 | } | |
a687059c LW |
1333 | ; |
1334 | ||
79072805 | 1335 | ary : '@' indirob |
f05e27e5 DM |
1336 | { $$ = newAVREF($2); |
1337 | TOKEN_GETMAD($1,$$,'@'); | |
1338 | } | |
79072805 LW |
1339 | ; |
1340 | ||
1341 | hsh : '%' indirob | |
f05e27e5 DM |
1342 | { $$ = newHVREF($2); |
1343 | TOKEN_GETMAD($1,$$,'%'); | |
1344 | } | |
79072805 LW |
1345 | ; |
1346 | ||
1347 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1348 | { $$ = newAVREF($2); |
1349 | TOKEN_GETMAD($1,$$,'l'); | |
1350 | } | |
79072805 LW |
1351 | ; |
1352 | ||
1353 | star : '*' indirob | |
f05e27e5 DM |
1354 | { $$ = newGVREF(0,$2); |
1355 | TOKEN_GETMAD($1,$$,'*'); | |
1356 | } | |
79072805 LW |
1357 | ; |
1358 | ||
891be019 | 1359 | /* Indirect objects */ |
79072805 LW |
1360 | indirob : WORD |
1361 | { $$ = scalar($1); } | |
fad39ff1 | 1362 | | scalar %prec PREC_LOW |
f05e27e5 | 1363 | { $$ = scalar($1); } |
79072805 | 1364 | | block |
3ad73efd | 1365 | { $$ = op_scope($1); } |
79072805 | 1366 | |
93a17b20 LW |
1367 | | PRIVATEREF |
1368 | { $$ = $1; } | |
8d063cd8 | 1369 | ; |