Introduced thr->threadsvp and THREADSV() for faster per-thread
[p5sagit/p5-mst-13.2.git] / perly.y
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a0d0e21e 1/* perly.y
a687059c 2 *
9607fc9c 3 * Copyright (c) 1991-1997, Larry Wall
a687059c 4 *
9ef589d8 5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
8d063cd8 7 *
a0d0e21e 8 */
9
10/*
11 * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it?
14a38fd5 12 * All that is gold does not glitter, not all those who wander are lost.'
8d063cd8 13 */
14
15%{
79072805 16#include "EXTERN.h"
8d063cd8 17#include "perl.h"
378cc40b 18
a0d0e21e 19static void
8ac85365 20dep(void)
a0d0e21e 21{
22 deprecate("\"do\" to call subroutines");
23}
f0fcb552 24
8d063cd8 25%}
26
27%start prog
28
29%union {
79072805 30 I32 ival;
31 char *pval;
32 OP *opval;
33 GV *gvval;
8d063cd8 34}
35
f0fcb552 36%token <ival> '{' ')'
37
a0d0e21e 38%token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF
4633a7c4 39%token <opval> FUNC0SUB UNIOPSUB LSTOPSUB
79072805 40%token <pval> LABEL
a0d0e21e 41%token <ival> FORMAT SUB ANONSUB PACKAGE USE
79072805 42%token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR
43%token <ival> LOOPEX DOTDOT
36477c24 44%token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP
79072805 45%token <ival> RELOP EQOP MULOP ADDOP
55497cff 46%token <ival> DOLSHARP DO HASHBRACK NOAMP
47%token LOCAL MY
79072805 48
44a8e56a 49%type <ival> prog decl local format startsub startanonsub startformsub
28757baa 50%type <ival> remember mremember '&'
bbce6d69 51%type <opval> block mblock lineseq line loop cond else
a0d0e21e 52%type <opval> expr term scalar ary hsh arylen star amper sideff
bbce6d69 53%type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr
44a8e56a 54%type <opval> listexpr listexprcom indirob listop method
55%type <opval> formname subname proto subbody cont my_scalar
79072805 56%type <pval> label
79072805 57
a0d0e21e 58%left <ival> OROP
463ee0b2 59%left ANDOP
c07a80fd 60%right NOTOP
36477c24 61%nonassoc LSTOP LSTOPSUB
8d063cd8 62%left ','
a0d0e21e 63%right <ival> ASSIGNOP
8d063cd8 64%right '?' ':'
65%nonassoc DOTDOT
66%left OROR
67%left ANDAND
79072805 68%left <ival> BITOROP
69%left <ival> BITANDOP
a687059c 70%nonassoc EQOP
71%nonassoc RELOP
36477c24 72%nonassoc UNIOP UNIOPSUB
79072805 73%left <ival> SHIFTOP
a687059c 74%left ADDOP
75%left MULOP
8990e307 76%left <ival> MATCHOP
79072805 77%right '!' '~' UMINUS REFGEN
78%right <ival> POWOP
79%nonassoc PREINC PREDEC POSTINC POSTDEC
8990e307 80%left ARROW
8d063cd8 81%left '('
82
83%% /* RULES */
84
ae986130 85prog : /* NULL */
86 {
87#if defined(YYDEBUG) && defined(DEBUGGING)
88 yydebug = (debug & 1);
89#endif
8990e307 90 expect = XSTATE;
ae986130 91 }
92 /*CONTINUED*/ lineseq
a0d0e21e 93 { newPROG($2); }
8d063cd8 94 ;
95
a687059c 96block : '{' remember lineseq '}'
36477c24 97 { if (copline > (line_t)$1)
98 copline = $1;
99 $$ = block_end($2, $3); }
a0d0e21e 100 ;
101
55497cff 102remember: /* NULL */ /* start a full lexical scope */
103 { $$ = block_start(TRUE); }
104 ;
105
bbce6d69 106mblock : '{' mremember lineseq '}'
36477c24 107 { if (copline > (line_t)$1)
108 copline = $1;
109 $$ = block_end($2, $3); }
55497cff 110 ;
111
112mremember: /* NULL */ /* start a partial lexical scope */
113 { $$ = block_start(FALSE); }
8d063cd8 114 ;
115
116lineseq : /* NULL */
79072805 117 { $$ = Nullop; }
118 | lineseq decl
119 { $$ = $1; }
8d063cd8 120 | lineseq line
463ee0b2 121 { $$ = append_list(OP_LINESEQ,
a0d0e21e 122 (LISTOP*)$1, (LISTOP*)$2);
123 pad_reset_pending = TRUE;
85e6fe83 124 if ($1 && $2) hints |= HINT_BLOCK_SCOPE; }
8d063cd8 125 ;
126
79072805 127line : label cond
128 { $$ = newSTATEOP(0, $1, $2); }
8d063cd8 129 | loop /* loops add their own labels */
130 | label ';'
131 { if ($1 != Nullch) {
79072805 132 $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0));
450a55e4 133 }
134 else {
79072805 135 $$ = Nullop;
136 copline = NOLINE;
32c2e4fb 137 }
8990e307 138 expect = XSTATE; }
8d063cd8 139 | label sideff ';'
79072805 140 { $$ = newSTATEOP(0, $1, $2);
8990e307 141 expect = XSTATE; }
8d063cd8 142 ;
143
a687059c 144sideff : error
79072805 145 { $$ = Nullop; }
a687059c 146 | expr
79072805 147 { $$ = $1; }
a687059c 148 | expr IF expr
79072805 149 { $$ = newLOGOP(OP_AND, 0, $3, $1); }
a687059c 150 | expr UNLESS expr
79072805 151 { $$ = newLOGOP(OP_OR, 0, $3, $1); }
a687059c 152 | expr WHILE expr
8990e307 153 { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); }
55497cff 154 | expr UNTIL iexpr
155 { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);}
79072805 156 ;
157
158else : /* NULL */
159 { $$ = Nullop; }
55497cff 160 | ELSE mblock
79072805 161 { $$ = scope($2); }
55497cff 162 | ELSIF '(' mexpr ')' mblock else
79072805 163 { copline = $1;
bbce6d69 164 $$ = newSTATEOP(0, Nullch,
165 newCONDOP(0, $3, scope($5), $6));
4633a7c4 166 hints |= HINT_BLOCK_SCOPE; }
79072805 167 ;
168
55497cff 169cond : IF '(' remember mexpr ')' mblock else
79072805 170 { copline = $1;
36477c24 171 $$ = block_end($3,
bbce6d69 172 newCONDOP(0, $4, scope($6), $7)); }
55497cff 173 | UNLESS '(' remember miexpr ')' mblock else
79072805 174 { copline = $1;
36477c24 175 $$ = block_end($3,
bbce6d69 176 newCONDOP(0, $4, scope($6), $7)); }
79072805 177 ;
178
179cont : /* NULL */
180 { $$ = Nullop; }
181 | CONTINUE block
182 { $$ = scope($2); }
183 ;
184
55497cff 185loop : label WHILE '(' remember mtexpr ')' mblock cont
79072805 186 { copline = $2;
36477c24 187 $$ = block_end($4,
55497cff 188 newSTATEOP(0, $1,
bbce6d69 189 newWHILEOP(0, 1, (LOOP*)Nullop,
fb73857a 190 $2, $5, $7, $8))); }
55497cff 191 | label UNTIL '(' remember miexpr ')' mblock cont
79072805 192 { copline = $2;
36477c24 193 $$ = block_end($4,
55497cff 194 newSTATEOP(0, $1,
bbce6d69 195 newWHILEOP(0, 1, (LOOP*)Nullop,
fb73857a 196 $2, $5, $7, $8))); }
bbce6d69 197 | label FOR MY remember my_scalar '(' mexpr ')' mblock cont
36477c24 198 { $$ = block_end($4,
bbce6d69 199 newFOROP(0, $1, $2, $5, $7, $9, $10)); }
200 | label FOR scalar '(' remember mexpr ')' mblock cont
36477c24 201 { $$ = block_end($5,
bbce6d69 202 newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP),
203 $6, $8, $9)); }
204 | label FOR '(' remember mexpr ')' mblock cont
36477c24 205 { $$ = block_end($4,
55497cff 206 newFOROP(0, $1, $2, Nullop, $5, $7, $8)); }
bbce6d69 207 | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock
8d063cd8 208 /* basically fake up an initialize-while lineseq */
fb73857a 209 { OP *forop = append_elem(OP_LINESEQ,
210 scalar($5),
211 newWHILEOP(0, 1, (LOOP*)Nullop,
212 $2, scalar($7),
213 $11, scalar($9)));
214 copline = $2;
215 $$ = block_end($4, newSTATEOP(0, $1, forop)); }
79072805 216 | label block cont /* a block is a loop that happens once */
fb73857a 217 { $$ = newSTATEOP(0, $1,
218 newWHILEOP(0, 1, (LOOP*)Nullop,
219 NOLINE, Nullop, $2, $3)); }
8d063cd8 220 ;
221
222nexpr : /* NULL */
79072805 223 { $$ = Nullop; }
8d063cd8 224 | sideff
225 ;
226
227texpr : /* NULL means true */
79072805 228 { (void)scan_num("1"); $$ = yylval.opval; }
8d063cd8 229 | expr
230 ;
231
55497cff 232iexpr : expr
233 { $$ = invert(scalar($1)); }
234 ;
235
236mexpr : expr
bbce6d69 237 { $$ = $1; intro_my(); }
238 ;
239
240mnexpr : nexpr
241 { $$ = $1; intro_my(); }
55497cff 242 ;
243
244mtexpr : texpr
bbce6d69 245 { $$ = $1; intro_my(); }
55497cff 246 ;
247
248miexpr : iexpr
bbce6d69 249 { $$ = $1; intro_my(); }
55497cff 250 ;
251
8d063cd8 252label : /* empty */
253 { $$ = Nullch; }
32c2e4fb 254 | LABEL
8d063cd8 255 ;
256
8d063cd8 257decl : format
258 { $$ = 0; }
259 | subrout
260 { $$ = 0; }
a687059c 261 | package
262 { $$ = 0; }
a0d0e21e 263 | use
85e6fe83 264 { $$ = 0; }
8d063cd8 265 ;
266
44a8e56a 267format : FORMAT startformsub formname block
a0d0e21e 268 { newFORM($2, $3, $4); }
44a8e56a 269 ;
270
271formname: WORD { $$ = $1; }
272 | /* NULL */ { $$ = Nullop; }
8d063cd8 273 ;
274
28757baa 275subrout : SUB startsub subname proto subbody
4633a7c4 276 { newSUB($2, $3, $4, $5); }
28757baa 277 ;
278
fa83b5b6 279startsub: /* NULL */ /* start a regular subroutine scope */
774d564b 280 { $$ = start_subparse(FALSE, 0); }
28757baa 281 ;
282
283startanonsub: /* NULL */ /* start an anonymous subroutine scope */
774d564b 284 { $$ = start_subparse(FALSE, CVf_ANON); }
28757baa 285 ;
286
44a8e56a 287startformsub: /* NULL */ /* start a format subroutine scope */
774d564b 288 { $$ = start_subparse(TRUE, 0); }
44a8e56a 289 ;
290
e858de61 291subname : WORD { char *name = SvPV(((SVOP*)$1)->op_sv, na);
292 if (strEQ(name, "BEGIN") || strEQ(name, "END")
7d07dbc2 293 || strEQ(name, "INIT"))
977336f5 294 CvUNIQUE_on(compcv);
28757baa 295 $$ = $1; }
a0d0e21e 296 ;
297
4633a7c4 298proto : /* NULL */
299 { $$ = Nullop; }
300 | THING
301 ;
28757baa 302
303subbody : block { $$ = $1; }
304 | ';' { $$ = Nullop; expect = XSTATE; }
8d063cd8 305 ;
306
a687059c 307package : PACKAGE WORD ';'
79072805 308 { package($2); }
93a17b20 309 | PACKAGE ';'
310 { package(Nullop); }
a687059c 311 ;
312
28757baa 313use : USE startsub
314 { CvUNIQUE_on(compcv); /* It's a BEGIN {} */ }
315 WORD WORD listexpr ';'
316 { utilize($1, $2, $4, $5, $6); }
85e6fe83 317 ;
318
a0d0e21e 319expr : expr ANDOP expr
320 { $$ = newLOGOP(OP_AND, 0, $1, $3); }
321 | expr OROP expr
322 { $$ = newLOGOP($2, 0, $1, $3); }
a0d0e21e 323 | argexpr
324 ;
325
326argexpr : argexpr ','
327 { $$ = $1; }
328 | argexpr ',' term
79072805 329 { $$ = append_elem(OP_LIST, $1, $3); }
a0d0e21e 330 | term
8d063cd8 331 ;
332
a0d0e21e 333listop : LSTOP indirob argexpr
79072805 334 { $$ = convert($1, OPf_STACKED,
a0d0e21e 335 prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); }
336 | FUNC '(' indirob expr ')'
79072805 337 { $$ = convert($1, OPf_STACKED,
a0d0e21e 338 prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); }
339 | term ARROW method '(' listexprcom ')'
4633a7c4 340 { $$ = convert(OP_ENTERSUB, OPf_STACKED,
a0d0e21e 341 append_elem(OP_LIST,
55497cff 342 prepend_elem(OP_LIST, scalar($1), $5),
a0d0e21e 343 newUNOP(OP_METHOD, 0, $3))); }
79072805 344 | METHOD indirob listexpr
4633a7c4 345 { $$ = convert(OP_ENTERSUB, OPf_STACKED,
a0d0e21e 346 append_elem(OP_LIST,
4633a7c4 347 prepend_elem(OP_LIST, $2, $3),
a0d0e21e 348 newUNOP(OP_METHOD, 0, $1))); }
349 | FUNCMETH indirob '(' listexprcom ')'
4633a7c4 350 { $$ = convert(OP_ENTERSUB, OPf_STACKED,
a0d0e21e 351 append_elem(OP_LIST,
4633a7c4 352 prepend_elem(OP_LIST, $2, $4),
a0d0e21e 353 newUNOP(OP_METHOD, 0, $1))); }
79072805 354 | LSTOP listexpr
355 { $$ = convert($1, 0, $2); }
a0d0e21e 356 | FUNC '(' listexprcom ')'
79072805 357 { $$ = convert($1, 0, $3); }
28757baa 358 | LSTOPSUB startanonsub block
359 { $3 = newANONSUB($2, 0, $3); }
360 listexpr %prec LSTOP
4633a7c4 361 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
28757baa 362 append_elem(OP_LIST,
363 prepend_elem(OP_LIST, $3, $5), $1)); }
a687059c 364 ;
365
a0d0e21e 366method : METHOD
367 | scalar
368 ;
369
370term : term ASSIGNOP term
371 { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); }
372 | term POWOP term
79072805 373 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 374 | term MULOP term
79072805 375 { if ($2 != OP_REPEAT)
376 scalar($1);
377 $$ = newBINOP($2, 0, $1, scalar($3)); }
a0d0e21e 378 | term ADDOP term
79072805 379 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 380 | term SHIFTOP term
79072805 381 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 382 | term RELOP term
79072805 383 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 384 | term EQOP term
79072805 385 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 386 | term BITANDOP term
79072805 387 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 388 | term BITOROP term
79072805 389 { $$ = newBINOP($2, 0, scalar($1), scalar($3)); }
a0d0e21e 390 | term DOTDOT term
79072805 391 { $$ = newRANGE($2, scalar($1), scalar($3));}
a0d0e21e 392 | term ANDAND term
463ee0b2 393 { $$ = newLOGOP(OP_AND, 0, $1, $3); }
a0d0e21e 394 | term OROR term
463ee0b2 395 { $$ = newLOGOP(OP_OR, 0, $1, $3); }
a0d0e21e 396 | term '?' term ':' term
79072805 397 { $$ = newCONDOP(0, $1, $3, $5); }
a0d0e21e 398 | term MATCHOP term
79072805 399 { $$ = bind_match($2, $1, $3); }
8d063cd8 400
a0d0e21e 401 | '-' term %prec UMINUS
79072805 402 { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); }
a687059c 403 | '+' term %prec UMINUS
404 { $$ = $2; }
8d063cd8 405 | '!' term
79072805 406 { $$ = newUNOP(OP_NOT, 0, scalar($2)); }
8d063cd8 407 | '~' term
79072805 408 { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));}
409 | REFGEN term
a0d0e21e 410 { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); }
79072805 411 | term POSTINC
412 { $$ = newUNOP(OP_POSTINC, 0,
463ee0b2 413 mod(scalar($1), OP_POSTINC)); }
79072805 414 | term POSTDEC
415 { $$ = newUNOP(OP_POSTDEC, 0,
463ee0b2 416 mod(scalar($1), OP_POSTDEC)); }
79072805 417 | PREINC term
418 { $$ = newUNOP(OP_PREINC, 0,
463ee0b2 419 mod(scalar($2), OP_PREINC)); }
79072805 420 | PREDEC term
421 { $$ = newUNOP(OP_PREDEC, 0,
463ee0b2 422 mod(scalar($2), OP_PREDEC)); }
55497cff 423 | local term %prec UNIOP
93a17b20 424 { $$ = localize($2,$1); }
a0d0e21e 425 | '(' expr ')'
79072805 426 { $$ = sawparens($2); }
8d063cd8 427 | '(' ')'
8990e307 428 { $$ = sawparens(newNULLLIST()); }
a0d0e21e 429 | '[' expr ']' %prec '('
79072805 430 { $$ = newANONLIST($2); }
431 | '[' ']' %prec '('
432 { $$ = newANONLIST(Nullop); }
a0d0e21e 433 | HASHBRACK expr ';' '}' %prec '('
79072805 434 { $$ = newANONHASH($2); }
435 | HASHBRACK ';' '}' %prec '('
436 { $$ = newANONHASH(Nullop); }
28757baa 437 | ANONSUB startanonsub proto block %prec '('
4633a7c4 438 { $$ = newANONSUB($2, $3, $4); }
79072805 439 | scalar %prec '('
8d063cd8 440 { $$ = $1; }
c07a80fd 441 | star '{' expr ';' '}'
442 { $$ = newBINOP(OP_GELEM, 0, newGVREF(0,$1), $3); }
79072805 443 | star %prec '('
8d063cd8 444 { $$ = $1; }
79072805 445 | scalar '[' expr ']' %prec '('
446 { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); }
447 | term ARROW '[' expr ']' %prec '('
448 { $$ = newBINOP(OP_AELEM, 0,
8990e307 449 ref(newAVREF($1),OP_RV2AV),
79072805 450 scalar($4));}
463ee0b2 451 | term '[' expr ']' %prec '('
a0d0e21e 452 { assertref($1); $$ = newBINOP(OP_AELEM, 0,
8990e307 453 ref(newAVREF($1),OP_RV2AV),
463ee0b2 454 scalar($3));}
79072805 455 | hsh %prec '('
8d063cd8 456 { $$ = $1; }
79072805 457 | ary %prec '('
8d063cd8 458 { $$ = $1; }
79072805 459 | arylen %prec '('
460 { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));}
461 | scalar '{' expr ';' '}' %prec '('
462 { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3));
463 expect = XOPERATOR; }
464 | term ARROW '{' expr ';' '}' %prec '('
465 { $$ = newBINOP(OP_HELEM, 0,
8990e307 466 ref(newHVREF($1),OP_RV2HV),
79072805 467 jmaybe($4));
468 expect = XOPERATOR; }
463ee0b2 469 | term '{' expr ';' '}' %prec '('
a0d0e21e 470 { assertref($1); $$ = newBINOP(OP_HELEM, 0,
8990e307 471 ref(newHVREF($1),OP_RV2HV),
463ee0b2 472 jmaybe($3));
473 expect = XOPERATOR; }
a0d0e21e 474 | '(' expr ')' '[' expr ']' %prec '('
79072805 475 { $$ = newSLICEOP(0, $5, $2); }
476 | '(' ')' '[' expr ']' %prec '('
477 { $$ = newSLICEOP(0, $4, Nullop); }
478 | ary '[' expr ']' %prec '('
479 { $$ = prepend_elem(OP_ASLICE,
480 newOP(OP_PUSHMARK, 0),
79072805 481 newLISTOP(OP_ASLICE, 0,
482 list($3),
a0d0e21e 483 ref($1, OP_ASLICE))); }
79072805 484 | ary '{' expr ';' '}' %prec '('
485 { $$ = prepend_elem(OP_HSLICE,
486 newOP(OP_PUSHMARK, 0),
79072805 487 newLISTOP(OP_HSLICE, 0,
488 list($3),
a0d0e21e 489 ref(oopsHV($1), OP_HSLICE)));
79072805 490 expect = XOPERATOR; }
491 | THING %prec '('
492 { $$ = $1; }
493 | amper
c07a80fd 494 { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); }
79072805 495 | amper '(' ')'
a0d0e21e 496 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); }
497 | amper '(' expr ')'
498 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
4633a7c4 499 append_elem(OP_LIST, $3, scalar($1))); }
93a17b20 500 | NOAMP WORD listexpr
a0d0e21e 501 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
a5f75d66 502 append_elem(OP_LIST, $3, scalar($2))); }
a0d0e21e 503 | DO term %prec UNIOP
463ee0b2 504 { $$ = newUNOP(OP_DOFILE, 0, scalar($2)); }
79072805 505 | DO block %prec '('
506 { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); }
8d063cd8 507 | DO WORD '(' ')'
c07a80fd 508 { $$ = newUNOP(OP_ENTERSUB,
509 OPf_SPECIAL|OPf_STACKED,
4633a7c4 510 prepend_elem(OP_LIST,
c07a80fd 511 scalar(newCVREF(
512 (OPpENTERSUB_AMPER<<8),
513 scalar($2)
514 )),Nullop)); dep();}
a0d0e21e 515 | DO WORD '(' expr ')'
c07a80fd 516 { $$ = newUNOP(OP_ENTERSUB,
517 OPf_SPECIAL|OPf_STACKED,
4633a7c4 518 append_elem(OP_LIST,
a0d0e21e 519 $4,
c07a80fd 520 scalar(newCVREF(
521 (OPpENTERSUB_AMPER<<8),
522 scalar($2)
523 )))); dep();}
79072805 524 | DO scalar '(' ')'
a0d0e21e 525 { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED,
4633a7c4 526 prepend_elem(OP_LIST,
c07a80fd 527 scalar(newCVREF(0,scalar($2))), Nullop)); dep();}
a0d0e21e 528 | DO scalar '(' expr ')'
529 { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED,
4633a7c4 530 prepend_elem(OP_LIST,
a0d0e21e 531 $4,
c07a80fd 532 scalar(newCVREF(0,scalar($2))))); dep();}
6da72b64 533 | term ARROW '(' ')' %prec '('
534 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
535 newCVREF(0, scalar($1))); }
536 | term ARROW '(' expr ')' %prec '('
537 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
538 append_elem(OP_LIST, $4,
539 newCVREF(0, scalar($1)))); }
8d063cd8 540 | LOOPEX
85e6fe83 541 { $$ = newOP($1, OPf_SPECIAL);
542 hints |= HINT_BLOCK_SCOPE; }
a0d0e21e 543 | LOOPEX term
8990e307 544 { $$ = newLOOPEX($1,$2); }
c07a80fd 545 | NOTOP argexpr
546 { $$ = newUNOP(OP_NOT, 0, scalar($2)); }
8d063cd8 547 | UNIOP
79072805 548 { $$ = newOP($1, 0); }
f0fcb552 549 | UNIOP block
79072805 550 { $$ = newUNOP($1, 0, $2); }
a0d0e21e 551 | UNIOP term
79072805 552 { $$ = newUNOP($1, 0, $2); }
4633a7c4 553 | UNIOPSUB term
554 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
555 append_elem(OP_LIST, $2, scalar($1))); }
8d063cd8 556 | FUNC0
79072805 557 { $$ = newOP($1, 0); }
ae986130 558 | FUNC0 '(' ')'
79072805 559 { $$ = newOP($1, 0); }
4633a7c4 560 | FUNC0SUB
28757baa 561 { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
4633a7c4 562 scalar($1)); }
03a14243 563 | FUNC1 '(' ')'
79072805 564 { $$ = newOP($1, OPf_SPECIAL); }
8d063cd8 565 | FUNC1 '(' expr ')'
79072805 566 { $$ = newUNOP($1, 0, $3); }
a0d0e21e 567 | PMFUNC '(' term ')'
79072805 568 { $$ = pmruntime($1, $3, Nullop); }
a0d0e21e 569 | PMFUNC '(' term ',' term ')'
79072805 570 { $$ = pmruntime($1, $3, $5); }
571 | WORD
378cc40b 572 | listop
8d063cd8 573 ;
574
79072805 575listexpr: /* NULL */
8990e307 576 { $$ = Nullop; }
a0d0e21e 577 | argexpr
578 { $$ = $1; }
579 ;
580
581listexprcom: /* NULL */
582 { $$ = Nullop; }
79072805 583 | expr
584 { $$ = $1; }
a0d0e21e 585 | expr ','
586 { $$ = $1; }
79072805 587 ;
588
55497cff 589local : LOCAL { $$ = 0; }
590 | MY { $$ = 1; }
591 ;
592
593my_scalar: scalar
594 { in_my = 0; $$ = my($1); }
595 ;
596
79072805 597amper : '&' indirob
c07a80fd 598 { $$ = newCVREF($1,$2); }
a687059c 599 ;
600
79072805 601scalar : '$' indirob
602 { $$ = newSVREF($2); }
a687059c 603 ;
604
79072805 605ary : '@' indirob
606 { $$ = newAVREF($2); }
607 ;
608
609hsh : '%' indirob
610 { $$ = newHVREF($2); }
611 ;
612
613arylen : DOLSHARP indirob
614 { $$ = newAVREF($2); }
615 ;
616
617star : '*' indirob
a0d0e21e 618 { $$ = newGVREF(0,$2); }
79072805 619 ;
620
621indirob : WORD
622 { $$ = scalar($1); }
623 | scalar
463ee0b2 624 { $$ = scalar($1); }
79072805 625 | block
a0d0e21e 626 { $$ = scope($1); }
79072805 627
93a17b20 628 | PRIVATEREF
629 { $$ = $1; }
8d063cd8 630 ;
631
632%% /* PROGRAM */