Commit | Line | Data |
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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
f05e27e5 | 3 | * Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall |
2eee27d7 | 4 | * Copyright (c) 2007, 2008, 2009, 2010, 2011 by Larry Wall and others |
a687059c | 5 | * |
9ef589d8 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
8d063cd8 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? | |
4ac71550 | 13 | * All that is gold does not glitter, not all those who wander are lost.' |
f05e27e5 | 14 | * |
4ac71550 TC |
15 | * [p.171 of _The Lord of the Rings_, I/x: "Strider"] |
16 | */ | |
17 | ||
18 | /* | |
f05e27e5 | 19 | * This file holds the grammar for the Perl language. If edited, you need |
166f8a29 DM |
20 | * to run regen_perly.pl, which re-creates the files perly.h, perly.tab |
21 | * and perly.act which are derived from this. | |
22 | * | |
f05e27e5 DM |
23 | * Note that these derived files are included and compiled twice; once |
24 | * from perly.c, and once from madly.c. The second time, a number of MAD | |
25 | * macros are defined, which compile in extra code that allows the parse | |
26 | * tree to be accurately dumped. In particular: | |
27 | * | |
28 | * MAD defined if compiling madly.c | |
29 | * DO_MAD(A) expands to A under madly.c, to null otherwise | |
30 | * IF_MAD(a,b) expands to A under madly.c, to B otherwise | |
31 | * TOKEN_GETMAD() expands to token_getmad() under madly.c, to null otherwise | |
32 | * TOKEN_FREE() similarly | |
33 | * OP_GETMAD() similarly | |
34 | * IVAL(i) expands to (i)->tk_lval.ival or (i) | |
35 | * PVAL(p) expands to (p)->tk_lval.pval or (p) | |
36 | * | |
166f8a29 DM |
37 | * The main job of of this grammar is to call the various newFOO() |
38 | * functions in op.c to build a syntax tree of OP structs. | |
61296642 | 39 | * It relies on the lexer in toke.c to do the tokenizing. |
29522234 DM |
40 | * |
41 | * Note: due to the way that the cleanup code works WRT to freeing ops on | |
42 | * the parse stack, it is dangerous to assign to the $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
78cdf107 | 72 | %token <ival> GRAMPROG GRAMEXPR GRAMBLOCK GRAMBARESTMT GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 73 | |
7c70caa5 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' '=' '.' |
f0fcb552 | 75 | |
ea25a9b2 | 76 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
7eb971ee | 77 | %token <opval> FUNC0OP FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 78 | %token <opval> PLUGEXPR PLUGSTMT |
f05e27e5 | 79 | %token <p_tkval> LABEL |
123d08c9 DM |
80 | %token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE |
81 | %token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR | |
82 | %token <i_tkval> GIVEN WHEN DEFAULT | |
be25f609 | 83 | %token <i_tkval> LOOPEX DOTDOT YADAYADA |
123d08c9 DM |
84 | %token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP |
85 | %token <i_tkval> RELOP EQOP MULOP ADDOP | |
86 | %token <i_tkval> DOLSHARP DO HASHBRACK NOAMP | |
87 | %token <i_tkval> LOCAL MY MYSUB REQUIRE | |
705fe0e5 | 88 | %token <i_tkval> COLONATTR FORMLBRACK FORMRBRACK |
f05e27e5 | 89 | |
727a8fe5 | 90 | %type <ival> grammar remember mremember |
f05e27e5 DM |
91 | %type <ival> startsub startanonsub startformsub |
92 | /* FIXME for MAD - are these two ival? */ | |
b5a64814 | 93 | %type <ival> mintro |
f05e27e5 | 94 | |
8e720305 | 95 | %type <opval> stmtseq fullstmt labfullstmt barestmt block mblock else |
fad39ff1 | 96 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
09b1cffe Z |
97 | %type <opval> listexpr nexpr texpr iexpr mexpr mnexpr miexpr |
98 | %type <opval> optlistexpr optexpr indirob listop method | |
7c70caa5 | 99 | %type <opval> formname subname proto subbody cont my_scalar formblock |
f05e27e5 | 100 | %type <opval> subattrlist myattrlist myattrterm myterm |
891be019 | 101 | %type <opval> termbinop termunop anonymous termdo |
705fe0e5 | 102 | %type <opval> formstmtseq formline formarg |
79072805 | 103 | |
123d08c9 | 104 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 SM |
105 | %nonassoc LOOPEX |
106 | ||
123d08c9 DM |
107 | %left <i_tkval> OROP DOROP |
108 | %left <i_tkval> ANDOP | |
109 | %right <i_tkval> NOTOP | |
36477c24 | 110 | %nonassoc LSTOP LSTOPSUB |
123d08c9 DM |
111 | %left <i_tkval> ',' |
112 | %right <i_tkval> ASSIGNOP | |
113 | %right <i_tkval> '?' ':' | |
be25f609 | 114 | %nonassoc DOTDOT YADAYADA |
123d08c9 DM |
115 | %left <i_tkval> OROR DORDOR |
116 | %left <i_tkval> ANDAND | |
117 | %left <i_tkval> BITOROP | |
118 | %left <i_tkval> BITANDOP | |
a687059c LW |
119 | %nonassoc EQOP |
120 | %nonassoc RELOP | |
36477c24 | 121 | %nonassoc UNIOP UNIOPSUB |
20515881 | 122 | %nonassoc REQUIRE |
123d08c9 | 123 | %left <i_tkval> SHIFTOP |
a687059c LW |
124 | %left ADDOP |
125 | %left MULOP | |
123d08c9 DM |
126 | %left <i_tkval> MATCHOP |
127 | %right <i_tkval> '!' '~' UMINUS REFGEN | |
128 | %right <i_tkval> POWOP | |
129 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC | |
130 | %left <i_tkval> ARROW | |
131 | %nonassoc <i_tkval> ')' | |
132 | %left <i_tkval> '(' | |
fad39ff1 | 133 | %left '[' '{' |
8d063cd8 | 134 | |
123d08c9 | 135 | %token <i_tkval> PEG |
7f46837f | 136 | |
8d063cd8 LW |
137 | %% /* RULES */ |
138 | ||
28ac2b49 | 139 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
727a8fe5 Z |
140 | grammar : GRAMPROG |
141 | { | |
142 | PL_parser->expect = XSTATE; | |
143 | } | |
144 | remember stmtseq | |
145 | { | |
146 | newPROG(block_end($3,$4)); | |
147 | $$ = 0; | |
148 | } | |
78cdf107 Z |
149 | | GRAMEXPR |
150 | { | |
151 | parser->expect = XTERM; | |
152 | } | |
09b1cffe | 153 | optexpr |
78cdf107 Z |
154 | { |
155 | PL_eval_root = $3; | |
156 | $$ = 0; | |
157 | } | |
e53d8f76 Z |
158 | | GRAMBLOCK |
159 | { | |
160 | parser->expect = XBLOCK; | |
161 | } | |
162 | block | |
163 | { | |
5f211341 | 164 | PL_pad_reset_pending = TRUE; |
8359b381 Z |
165 | PL_eval_root = $3; |
166 | $$ = 0; | |
167 | yyunlex(); | |
168 | parser->yychar = YYEOF; | |
169 | } | |
170 | | GRAMBARESTMT | |
171 | { | |
172 | parser->expect = XSTATE; | |
173 | } | |
174 | barestmt | |
175 | { | |
176 | PL_pad_reset_pending = TRUE; | |
e53d8f76 Z |
177 | PL_eval_root = $3; |
178 | $$ = 0; | |
179 | yyunlex(); | |
180 | parser->yychar = YYEOF; | |
181 | } | |
9eb5c532 | 182 | | GRAMFULLSTMT |
28ac2b49 | 183 | { |
9eb5c532 Z |
184 | parser->expect = XSTATE; |
185 | } | |
186 | fullstmt | |
187 | { | |
5f211341 | 188 | PL_pad_reset_pending = TRUE; |
9eb5c532 | 189 | PL_eval_root = $3; |
28ac2b49 Z |
190 | $$ = 0; |
191 | yyunlex(); | |
192 | parser->yychar = YYEOF; | |
193 | } | |
07ffcb73 Z |
194 | | GRAMSTMTSEQ |
195 | { | |
196 | parser->expect = XSTATE; | |
197 | } | |
5f211341 | 198 | stmtseq |
07ffcb73 Z |
199 | { |
200 | PL_eval_root = $3; | |
201 | $$ = 0; | |
202 | } | |
203 | ; | |
204 | ||
891be019 | 205 | /* An ordinary block */ |
5f211341 | 206 | block : '{' remember stmtseq '}' |
53a7735b DM |
207 | { if (PL_parser->copline > (line_t)IVAL($1)) |
208 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
209 | $$ = block_end($2, $3); |
210 | TOKEN_GETMAD($1,$$,'{'); | |
211 | TOKEN_GETMAD($4,$$,'}'); | |
212 | } | |
a0d0e21e LW |
213 | ; |
214 | ||
7c70caa5 | 215 | /* format body */ |
705fe0e5 | 216 | formblock: '=' remember ';' FORMRBRACK formstmtseq ';' '.' |
7c70caa5 FC |
217 | { if (PL_parser->copline > (line_t)IVAL($1)) |
218 | PL_parser->copline = (line_t)IVAL($1); | |
705fe0e5 | 219 | $$ = block_end($2, $5); |
7c70caa5 | 220 | TOKEN_GETMAD($1,$$,'{'); |
705fe0e5 | 221 | TOKEN_GETMAD($7,$$,'}'); |
7c70caa5 FC |
222 | } |
223 | ; | |
224 | ||
55497cff | 225 | remember: /* NULL */ /* start a full lexical scope */ |
226 | { $$ = block_start(TRUE); } | |
227 | ; | |
228 | ||
5f211341 | 229 | mblock : '{' mremember stmtseq '}' |
53a7735b DM |
230 | { if (PL_parser->copline > (line_t)IVAL($1)) |
231 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
232 | $$ = block_end($2, $3); |
233 | TOKEN_GETMAD($1,$$,'{'); | |
234 | TOKEN_GETMAD($4,$$,'}'); | |
235 | } | |
55497cff | 236 | ; |
237 | ||
238 | mremember: /* NULL */ /* start a partial lexical scope */ | |
239 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
240 | ; |
241 | ||
eae48c89 | 242 | /* A sequence of statements in the program */ |
5f211341 | 243 | stmtseq : /* NULL */ |
bcabcc50 | 244 | { $$ = (OP*)NULL; } |
5f211341 | 245 | | stmtseq fullstmt |
2fcb4757 | 246 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 247 | PL_pad_reset_pending = TRUE; |
503de470 DM |
248 | if ($1 && $2) |
249 | PL_hints |= HINT_BLOCK_SCOPE; | |
250 | } | |
8d063cd8 LW |
251 | ; |
252 | ||
705fe0e5 FC |
253 | /* A sequence of format lines */ |
254 | formstmtseq: /* NULL */ | |
255 | { $$ = (OP*)NULL; } | |
256 | | formstmtseq formline | |
257 | { $$ = op_append_list(OP_LINESEQ, $1, $2); | |
258 | PL_pad_reset_pending = TRUE; | |
259 | if ($1 && $2) | |
260 | PL_hints |= HINT_BLOCK_SCOPE; | |
261 | } | |
262 | ; | |
263 | ||
8e720305 Z |
264 | /* A statement in the program, including optional labels */ |
265 | fullstmt: barestmt | |
eae48c89 | 266 | { |
8e720305 Z |
267 | if($1) { |
268 | $$ = newSTATEOP(0, NULL, $1); | |
eae48c89 | 269 | } else { |
8e720305 | 270 | $$ = IF_MAD(newOP(OP_NULL, 0), NULL); |
eae48c89 Z |
271 | } |
272 | } | |
8e720305 Z |
273 | | labfullstmt |
274 | { $$ = $1; } | |
275 | ; | |
276 | ||
277 | labfullstmt: LABEL barestmt | |
278 | { | |
5db1eb8d BF |
279 | $$ = newSTATEOP(SvUTF8(((SVOP*)$1)->op_sv), |
280 | savepv(SvPVX(((SVOP*)$1)->op_sv)), $2); | |
8e720305 Z |
281 | TOKEN_GETMAD($1, |
282 | $2 ? cLISTOPx($$)->op_first : $$, 'L'); | |
283 | } | |
284 | | LABEL labfullstmt | |
285 | { | |
5db1eb8d BF |
286 | $$ = newSTATEOP(SvUTF8(((SVOP*)$1)->op_sv), |
287 | savepv(SvPVX(((SVOP*)$1)->op_sv)), $2); | |
8e720305 Z |
288 | TOKEN_GETMAD($1, cLISTOPx($$)->op_first, 'L'); |
289 | } | |
eae48c89 Z |
290 | ; |
291 | ||
292 | /* A bare statement, lacking label and other aspects of state op */ | |
293 | barestmt: PLUGSTMT | |
0d863452 | 294 | { $$ = $1; } |
eae48c89 Z |
295 | | PEG |
296 | { | |
297 | $$ = newOP(OP_NULL,0); | |
298 | TOKEN_GETMAD($1,$$,'p'); | |
299 | } | |
7c70caa5 | 300 | | FORMAT startformsub formname formblock |
f05e27e5 | 301 | { |
eae48c89 | 302 | CV *fmtcv = PL_compcv; |
eae48c89 Z |
303 | #ifdef MAD |
304 | $$ = newFORM($2, $3, $4); | |
305 | prepend_madprops($1->tk_mad, $$, 'F'); | |
306 | $1->tk_mad = 0; | |
307 | token_free($1); | |
308 | #else | |
309 | newFORM($2, $3, $4); | |
310 | $$ = (OP*)NULL; | |
311 | #endif | |
4a273b91 | 312 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
eae48c89 | 313 | SvREFCNT_inc_simple_void(fmtcv); |
cc76b5cc | 314 | pad_add_anon(fmtcv, OP_NULL); |
f05e27e5 | 315 | } |
eae48c89 | 316 | } |
50278755 FC |
317 | | SUB subname startsub |
318 | { | |
319 | if ($2->op_type == OP_CONST) { | |
320 | const char *const name = | |
321 | SvPV_nolen_const(((SVOP*)$2)->op_sv); | |
322 | if (strEQ(name, "BEGIN") || strEQ(name, "END") | |
764212cf FC |
323 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
324 | || strEQ(name, "UNITCHECK")) | |
325 | CvSPECIAL_on(PL_compcv); | |
50278755 | 326 | } |
e07561e6 FC |
327 | else |
328 | /* State subs inside anonymous subs need to be | |
329 | clonable themselves. */ | |
6d5c2147 FC |
330 | if (CvANON(CvOUTSIDE(PL_compcv)) |
331 | || CvCLONE(CvOUTSIDE(PL_compcv)) | |
332 | || !PadnameIsSTATE(PadlistNAMESARRAY(CvPADLIST( | |
333 | CvOUTSIDE(PL_compcv) | |
334 | ))[$2->op_targ])) | |
e07561e6 | 335 | CvCLONE_on(PL_compcv); |
764212cf FC |
336 | PL_parser->in_my = 0; |
337 | PL_parser->in_my_stash = NULL; | |
338 | } | |
339 | proto subattrlist subbody | |
eae48c89 Z |
340 | { |
341 | SvREFCNT_inc_simple_void(PL_compcv); | |
342 | #ifdef MAD | |
343 | { | |
344 | OP* o = newSVOP(OP_ANONCODE, 0, | |
50278755 FC |
345 | (SV*)( |
346 | #endif | |
347 | $2->op_type == OP_CONST | |
348 | ? newATTRSUB($3, $2, $5, $6, $7) | |
349 | : newMYSUB($3, $2, $5, $6, $7) | |
350 | #ifdef MAD | |
351 | )); | |
eae48c89 Z |
352 | $$ = newOP(OP_NULL,0); |
353 | op_getmad(o,$$,'&'); | |
764212cf FC |
354 | op_getmad($2,$$,'n'); |
355 | op_getmad($5,$$,'s'); | |
356 | op_getmad($6,$$,'a'); | |
eae48c89 | 357 | token_getmad($1,$$,'d'); |
764212cf FC |
358 | append_madprops($7->op_madprop, $$, 0); |
359 | $7->op_madprop = 0; | |
f05e27e5 | 360 | } |
eae48c89 | 361 | #else |
50278755 | 362 | ; |
eae48c89 Z |
363 | $$ = (OP*)NULL; |
364 | #endif | |
764212cf | 365 | intro_my(); |
f05e27e5 | 366 | } |
eae48c89 | 367 | | MYSUB startsub subname proto subattrlist subbody |
f05e27e5 | 368 | { |
eae48c89 Z |
369 | /* Unimplemented "my sub foo { }" */ |
370 | SvREFCNT_inc_simple_void(PL_compcv); | |
371 | #ifdef MAD | |
372 | $$ = newMYSUB($2, $3, $4, $5, $6); | |
373 | token_getmad($1,$$,'d'); | |
374 | #else | |
375 | newMYSUB($2, $3, $4, $5, $6); | |
376 | $$ = (OP*)NULL; | |
377 | #endif | |
378 | } | |
379 | | PACKAGE WORD WORD ';' | |
5f211341 | 380 | { |
eae48c89 Z |
381 | #ifdef MAD |
382 | $$ = package($3); | |
383 | token_getmad($1,$$,'o'); | |
384 | if ($2) | |
385 | package_version($2); | |
386 | token_getmad($4,$$,';'); | |
387 | #else | |
388 | package($3); | |
389 | if ($2) | |
390 | package_version($2); | |
391 | $$ = (OP*)NULL; | |
392 | #endif | |
393 | } | |
394 | | USE startsub | |
395 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
09b1cffe | 396 | WORD WORD optlistexpr ';' |
eae48c89 Z |
397 | { |
398 | SvREFCNT_inc_simple_void(PL_compcv); | |
399 | #ifdef MAD | |
400 | $$ = utilize(IVAL($1), $2, $4, $5, $6); | |
401 | token_getmad($1,$$,'o'); | |
402 | token_getmad($7,$$,';'); | |
403 | if (PL_parser->rsfp_filters && | |
404 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
405 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); | |
406 | #else | |
407 | utilize(IVAL($1), $2, $4, $5, $6); | |
408 | $$ = (OP*)NULL; | |
409 | #endif | |
410 | } | |
417a992d | 411 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 412 | { |
3ad73efd Z |
413 | $$ = block_end($3, |
414 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
415 | TOKEN_GETMAD($1,$$,'I'); |
416 | TOKEN_GETMAD($2,$$,'('); | |
417 | TOKEN_GETMAD($5,$$,')'); | |
418 | PL_parser->copline = (line_t)IVAL($1); | |
419 | } | |
417a992d | 420 | | UNLESS '(' remember miexpr ')' mblock else |
eae48c89 | 421 | { |
3ad73efd Z |
422 | $$ = block_end($3, |
423 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
424 | TOKEN_GETMAD($1,$$,'I'); |
425 | TOKEN_GETMAD($2,$$,'('); | |
426 | TOKEN_GETMAD($5,$$,')'); | |
427 | PL_parser->copline = (line_t)IVAL($1); | |
428 | } | |
b5a64814 | 429 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 430 | { |
b5a64814 | 431 | const PADOFFSET offset = pad_findmy_pvs("$_", 0); |
eae48c89 | 432 | $$ = block_end($3, |
b5a64814 FC |
433 | newGIVENOP($4, op_scope($6), |
434 | offset == NOT_IN_PAD | |
435 | || PAD_COMPNAME_FLAGS_isOUR(offset) | |
436 | ? 0 | |
437 | : offset)); | |
eae48c89 Z |
438 | PL_parser->copline = (line_t)IVAL($1); |
439 | } | |
417a992d | 440 | | WHEN '(' remember mexpr ')' mblock |
3ad73efd | 441 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } |
eae48c89 | 442 | | DEFAULT block |
3ad73efd | 443 | { $$ = newWHENOP(0, op_scope($2)); } |
417a992d | 444 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
445 | { |
446 | $$ = block_end($3, | |
447 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 448 | $4, $7, $8, $6)); |
eae48c89 Z |
449 | TOKEN_GETMAD($1,$$,'W'); |
450 | TOKEN_GETMAD($2,$$,'('); | |
451 | TOKEN_GETMAD($5,$$,')'); | |
452 | PL_parser->copline = (line_t)IVAL($1); | |
453 | } | |
417a992d | 454 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
455 | { |
456 | $$ = block_end($3, | |
94bf0465 Z |
457 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
458 | $4, $7, $8, $6)); | |
eae48c89 Z |
459 | TOKEN_GETMAD($1,$$,'W'); |
460 | TOKEN_GETMAD($2,$$,'('); | |
461 | TOKEN_GETMAD($5,$$,')'); | |
462 | PL_parser->copline = (line_t)IVAL($1); | |
463 | } | |
417a992d | 464 | | FOR '(' remember mnexpr ';' texpr ';' mintro mnexpr ')' |
eae48c89 Z |
465 | mblock |
466 | { | |
467 | OP *initop = IF_MAD($4 ? $4 : newOP(OP_NULL, 0), $4); | |
468 | OP *forop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 469 | scalar($6), $11, $9, $8); |
eae48c89 Z |
470 | if (initop) { |
471 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
472 | op_append_elem(OP_LINESEQ, | |
473 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
474 | forop)); | |
5f211341 | 475 | } |
eae48c89 Z |
476 | DO_MAD({ forop = newUNOP(OP_NULL, 0, forop); }) |
477 | $$ = block_end($3, forop); | |
478 | TOKEN_GETMAD($1,$$,'3'); | |
479 | TOKEN_GETMAD($2,$$,'('); | |
480 | TOKEN_GETMAD($5,$$,'1'); | |
481 | TOKEN_GETMAD($7,$$,'2'); | |
482 | TOKEN_GETMAD($10,$$,')'); | |
483 | PL_parser->copline = (line_t)IVAL($1); | |
484 | } | |
417a992d | 485 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 486 | { |
94bf0465 | 487 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
eae48c89 Z |
488 | TOKEN_GETMAD($1,$$,'W'); |
489 | TOKEN_GETMAD($2,$$,'d'); | |
490 | TOKEN_GETMAD($5,$$,'('); | |
491 | TOKEN_GETMAD($7,$$,')'); | |
492 | PL_parser->copline = (line_t)IVAL($1); | |
493 | } | |
417a992d | 494 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 495 | { |
94bf0465 | 496 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 497 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
eae48c89 Z |
498 | TOKEN_GETMAD($1,$$,'W'); |
499 | TOKEN_GETMAD($3,$$,'('); | |
500 | TOKEN_GETMAD($6,$$,')'); | |
501 | PL_parser->copline = (line_t)IVAL($1); | |
502 | } | |
417a992d | 503 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
504 | { |
505 | $$ = block_end($3, | |
94bf0465 | 506 | newFOROP(0, (OP*)NULL, $4, $6, $7)); |
eae48c89 Z |
507 | TOKEN_GETMAD($1,$$,'W'); |
508 | TOKEN_GETMAD($2,$$,'('); | |
509 | TOKEN_GETMAD($5,$$,')'); | |
510 | PL_parser->copline = (line_t)IVAL($1); | |
511 | } | |
512 | | block cont | |
513 | { | |
514 | /* a block is a loop that happens once */ | |
515 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 516 | (OP*)NULL, $1, $2, 0); |
eae48c89 Z |
517 | } |
518 | | PACKAGE WORD WORD '{' remember | |
519 | { | |
eae48c89 | 520 | package($3); |
eae48c89 | 521 | if ($2) { |
eae48c89 | 522 | package_version($2); |
eae48c89 Z |
523 | } |
524 | } | |
525 | stmtseq '}' | |
526 | { | |
527 | /* a block is a loop that happens once */ | |
94bf0465 | 528 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
eae48c89 | 529 | (OP*)NULL, block_end($5, $7), (OP*)NULL, 0); |
eae48c89 Z |
530 | TOKEN_GETMAD($4,$$,'{'); |
531 | TOKEN_GETMAD($8,$$,'}'); | |
532 | if (PL_parser->copline > (line_t)IVAL($4)) | |
533 | PL_parser->copline = (line_t)IVAL($4); | |
534 | } | |
535 | | sideff ';' | |
536 | { | |
537 | PL_parser->expect = XSTATE; | |
538 | $$ = $1; | |
539 | TOKEN_GETMAD($2,$$,';'); | |
540 | } | |
541 | | ';' | |
542 | { | |
543 | PL_parser->expect = XSTATE; | |
544 | $$ = IF_MAD(newOP(OP_NULL, 0), (OP*)NULL); | |
545 | TOKEN_GETMAD($1,$$,';'); | |
546 | PL_parser->copline = NOLINE; | |
5f211341 | 547 | } |
8d063cd8 LW |
548 | ; |
549 | ||
705fe0e5 FC |
550 | /* Format line */ |
551 | formline: THING formarg | |
552 | { OP *list; | |
553 | if ($2) { | |
554 | OP *term = $2; | |
555 | DO_MAD(term = newUNOP(OP_NULL, 0, term)); | |
556 | list = op_append_elem(OP_LIST, $1, term); | |
557 | } | |
558 | else { | |
559 | #ifdef MAD | |
560 | OP *op = newNULLLIST(); | |
561 | list = op_append_elem(OP_LIST, $1, op); | |
562 | #else | |
563 | list = $1; | |
564 | #endif | |
565 | } | |
566 | if (PL_parser->copline == NOLINE) | |
567 | PL_parser->copline = CopLINE(PL_curcop)-1; | |
568 | else PL_parser->copline--; | |
569 | $$ = newSTATEOP(0, NULL, | |
570 | convert(OP_FORMLINE, 0, list)); | |
571 | } | |
572 | ; | |
573 | ||
574 | formarg : /* NULL */ | |
575 | { $$ = NULL; } | |
576 | | FORMLBRACK stmtseq FORMRBRACK | |
577 | { $$ = op_unscope($2); } | |
578 | ; | |
579 | ||
891be019 | 580 | /* An expression which may have a side-effect */ |
a687059c | 581 | sideff : error |
bcabcc50 | 582 | { $$ = (OP*)NULL; } |
a687059c | 583 | | expr |
79072805 | 584 | { $$ = $1; } |
a687059c | 585 | | expr IF expr |
f05e27e5 DM |
586 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
587 | TOKEN_GETMAD($2,$$,'i'); | |
588 | } | |
a687059c | 589 | | expr UNLESS expr |
f05e27e5 DM |
590 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
591 | TOKEN_GETMAD($2,$$,'i'); | |
592 | } | |
a687059c | 593 | | expr WHILE expr |
f05e27e5 DM |
594 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
595 | TOKEN_GETMAD($2,$$,'w'); | |
596 | } | |
55497cff | 597 | | expr UNTIL iexpr |
f05e27e5 DM |
598 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
599 | TOKEN_GETMAD($2,$$,'w'); | |
600 | } | |
ecca16b0 | 601 | | expr FOR expr |
94bf0465 | 602 | { $$ = newFOROP(0, (OP*)NULL, $3, $1, (OP*)NULL); |
eae48c89 | 603 | TOKEN_GETMAD($2,$$,'w'); |
94bf0465 | 604 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 605 | } |
f20dcd76 | 606 | | expr WHEN expr |
3ad73efd | 607 | { $$ = newWHENOP($3, op_scope($1)); } |
79072805 LW |
608 | ; |
609 | ||
891be019 | 610 | /* else and elsif blocks */ |
79072805 | 611 | else : /* NULL */ |
bcabcc50 | 612 | { $$ = (OP*)NULL; } |
55497cff | 613 | | ELSE mblock |
3ad73efd Z |
614 | { |
615 | ($2)->op_flags |= OPf_PARENS; | |
616 | $$ = op_scope($2); | |
f05e27e5 DM |
617 | TOKEN_GETMAD($1,$$,'o'); |
618 | } | |
417a992d | 619 | | ELSIF '(' mexpr ')' mblock else |
53a7735b | 620 | { PL_parser->copline = (line_t)IVAL($1); |
3ad73efd Z |
621 | $$ = newCONDOP(0, |
622 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
623 | op_scope($5), $6); | |
624 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 DM |
625 | TOKEN_GETMAD($1,$$,'I'); |
626 | TOKEN_GETMAD($2,$$,'('); | |
627 | TOKEN_GETMAD($4,$$,')'); | |
628 | } | |
79072805 LW |
629 | ; |
630 | ||
891be019 | 631 | /* Continue blocks */ |
79072805 | 632 | cont : /* NULL */ |
bcabcc50 | 633 | { $$ = (OP*)NULL; } |
79072805 | 634 | | CONTINUE block |
3ad73efd Z |
635 | { |
636 | $$ = op_scope($2); | |
f05e27e5 DM |
637 | TOKEN_GETMAD($1,$$,'o'); |
638 | } | |
79072805 LW |
639 | ; |
640 | ||
a034e688 DM |
641 | /* determine whether there are any new my declarations */ |
642 | mintro : /* NULL */ | |
643 | { $$ = (PL_min_intro_pending && | |
644 | PL_max_intro_pending >= PL_min_intro_pending); | |
645 | intro_my(); } | |
646 | ||
891be019 | 647 | /* Normal expression */ |
8d063cd8 | 648 | nexpr : /* NULL */ |
bcabcc50 | 649 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
650 | | sideff |
651 | ; | |
652 | ||
891be019 | 653 | /* Boolean expression */ |
8d063cd8 | 654 | texpr : /* NULL means true */ |
f05e27e5 DM |
655 | { YYSTYPE tmplval; |
656 | (void)scan_num("1", &tmplval); | |
657 | $$ = tmplval.opval; } | |
8d063cd8 LW |
658 | | expr |
659 | ; | |
660 | ||
891be019 | 661 | /* Inverted boolean expression */ |
55497cff | 662 | iexpr : expr |
663 | { $$ = invert(scalar($1)); } | |
664 | ; | |
665 | ||
891be019 | 666 | /* Expression with its own lexical scope */ |
55497cff | 667 | mexpr : expr |
bbce6d69 | 668 | { $$ = $1; intro_my(); } |
669 | ; | |
670 | ||
671 | mnexpr : nexpr | |
672 | { $$ = $1; intro_my(); } | |
55497cff | 673 | ; |
674 | ||
55497cff | 675 | miexpr : iexpr |
bbce6d69 | 676 | { $$ = $1; intro_my(); } |
55497cff | 677 | ; |
678 | ||
44a8e56a | 679 | formname: WORD { $$ = $1; } |
bcabcc50 | 680 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
681 | ; |
682 | ||
fa83b5b6 | 683 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
684 | { $$ = start_subparse(FALSE, 0); |
685 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 686 | |
28757baa | 687 | ; |
688 | ||
689 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
690 | { $$ = start_subparse(FALSE, CVf_ANON); |
691 | SAVEFREESV(PL_compcv); } | |
28757baa | 692 | ; |
693 | ||
44a8e56a | 694 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
695 | { $$ = start_subparse(TRUE, 0); |
696 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 697 | ; |
698 | ||
891be019 | 699 | /* Name of a subroutine - must be a bareword, could be special */ |
50278755 | 700 | subname : WORD |
4210d3f1 | 701 | | PRIVATEREF |
a0d0e21e LW |
702 | ; |
703 | ||
891be019 | 704 | /* Subroutine prototype */ |
4633a7c4 | 705 | proto : /* NULL */ |
bcabcc50 | 706 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
707 | | THING |
708 | ; | |
28757baa | 709 | |
891be019 | 710 | /* Optional list of subroutine attributes */ |
09bef843 | 711 | subattrlist: /* NULL */ |
bcabcc50 | 712 | { $$ = (OP*)NULL; } |
09bef843 | 713 | | COLONATTR THING |
f05e27e5 DM |
714 | { $$ = $2; |
715 | TOKEN_GETMAD($1,$$,':'); | |
716 | } | |
09bef843 | 717 | | COLONATTR |
f05e27e5 DM |
718 | { $$ = IF_MAD( |
719 | newOP(OP_NULL, 0), | |
bcabcc50 | 720 | (OP*)NULL |
f05e27e5 DM |
721 | ); |
722 | TOKEN_GETMAD($1,$$,':'); | |
723 | } | |
09bef843 SB |
724 | ; |
725 | ||
891be019 | 726 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 727 | myattrlist: COLONATTR THING |
f05e27e5 DM |
728 | { $$ = $2; |
729 | TOKEN_GETMAD($1,$$,':'); | |
730 | } | |
09bef843 | 731 | | COLONATTR |
f05e27e5 DM |
732 | { $$ = IF_MAD( |
733 | newOP(OP_NULL, 0), | |
bcabcc50 | 734 | (OP*)NULL |
f05e27e5 DM |
735 | ); |
736 | TOKEN_GETMAD($1,$$,':'); | |
737 | } | |
09bef843 SB |
738 | ; |
739 | ||
891be019 | 740 | /* Subroutine body - either null or a block */ |
28757baa | 741 | subbody : block { $$ = $1; } |
f05e27e5 DM |
742 | | ';' { $$ = IF_MAD( |
743 | newOP(OP_NULL,0), | |
bcabcc50 | 744 | (OP*)NULL |
f05e27e5 | 745 | ); |
53a7735b | 746 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
747 | TOKEN_GETMAD($1,$$,';'); |
748 | } | |
8d063cd8 LW |
749 | ; |
750 | ||
891be019 | 751 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 752 | expr : expr ANDOP expr |
f05e27e5 DM |
753 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
754 | TOKEN_GETMAD($2,$$,'o'); | |
755 | } | |
a0d0e21e | 756 | | expr OROP expr |
f05e27e5 DM |
757 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
758 | TOKEN_GETMAD($2,$$,'o'); | |
759 | } | |
c963b151 | 760 | | expr DOROP expr |
f05e27e5 DM |
761 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
762 | TOKEN_GETMAD($2,$$,'o'); | |
763 | } | |
09b1cffe | 764 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
765 | ; |
766 | ||
891be019 | 767 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 768 | listexpr: listexpr ',' |
f05e27e5 DM |
769 | { |
770 | #ifdef MAD | |
771 | OP* op = newNULLLIST(); | |
772 | token_getmad($2,op,','); | |
2fcb4757 | 773 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
774 | #else |
775 | $$ = $1; | |
776 | #endif | |
777 | } | |
09b1cffe | 778 | | listexpr ',' term |
f05e27e5 | 779 | { |
29522234 | 780 | OP* term = $3; |
f05e27e5 | 781 | DO_MAD( |
29522234 DM |
782 | term = newUNOP(OP_NULL, 0, term); |
783 | token_getmad($2,term,','); | |
f05e27e5 | 784 | ) |
2fcb4757 | 785 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 786 | } |
fad39ff1 | 787 | | term %prec PREC_LOW |
8d063cd8 LW |
788 | ; |
789 | ||
891be019 | 790 | /* List operators */ |
09b1cffe | 791 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 792 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 793 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
794 | TOKEN_GETMAD($1,$$,'o'); |
795 | } | |
891be019 | 796 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 797 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 798 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
799 | TOKEN_GETMAD($1,$$,'o'); |
800 | TOKEN_GETMAD($2,$$,'('); | |
801 | TOKEN_GETMAD($5,$$,')'); | |
802 | } | |
417a992d | 803 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
4633a7c4 | 804 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
805 | op_append_elem(OP_LIST, |
806 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
807 | newUNOP(OP_METHOD, 0, $3))); |
808 | TOKEN_GETMAD($2,$$,'A'); | |
809 | TOKEN_GETMAD($4,$$,'('); | |
810 | TOKEN_GETMAD($6,$$,')'); | |
811 | } | |
891be019 | 812 | | term ARROW method /* $foo->bar */ |
b1524f17 | 813 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 814 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
815 | newUNOP(OP_METHOD, 0, $3))); |
816 | TOKEN_GETMAD($2,$$,'A'); | |
817 | } | |
09b1cffe | 818 | | METHOD indirob optlistexpr /* new Class @args */ |
4633a7c4 | 819 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
820 | op_append_elem(OP_LIST, |
821 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
822 | newUNOP(OP_METHOD, 0, $1))); |
823 | } | |
09b1cffe | 824 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
4633a7c4 | 825 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
826 | op_append_elem(OP_LIST, |
827 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
828 | newUNOP(OP_METHOD, 0, $1))); |
829 | TOKEN_GETMAD($3,$$,'('); | |
830 | TOKEN_GETMAD($5,$$,')'); | |
831 | } | |
09b1cffe | 832 | | LSTOP optlistexpr /* print @args */ |
f05e27e5 DM |
833 | { $$ = convert(IVAL($1), 0, $2); |
834 | TOKEN_GETMAD($1,$$,'o'); | |
835 | } | |
09b1cffe | 836 | | FUNC '(' optexpr ')' /* print (@args) */ |
f05e27e5 DM |
837 | { $$ = convert(IVAL($1), 0, $3); |
838 | TOKEN_GETMAD($1,$$,'o'); | |
839 | TOKEN_GETMAD($2,$$,'('); | |
840 | TOKEN_GETMAD($4,$$,')'); | |
841 | } | |
718a7425 | 842 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 843 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 844 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
09b1cffe | 845 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 846 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
847 | op_append_elem(OP_LIST, |
848 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 849 | } |
a687059c LW |
850 | ; |
851 | ||
891be019 | 852 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
853 | method : METHOD |
854 | | scalar | |
855 | ; | |
856 | ||
891be019 SC |
857 | /* Some kind of subscripted expression */ |
858 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
859 | /* In this and all the hash accessors, ';' is | |
860 | * provided by the tokeniser */ | |
264e1af3 | 861 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 862 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
863 | TOKEN_GETMAD($2,$$,'{'); |
864 | TOKEN_GETMAD($4,$$,';'); | |
865 | TOKEN_GETMAD($5,$$,'}'); | |
866 | } | |
891be019 | 867 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
868 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
869 | TOKEN_GETMAD($2,$$,'['); | |
870 | TOKEN_GETMAD($4,$$,']'); | |
871 | } | |
891be019 | 872 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
873 | { $$ = newBINOP(OP_AELEM, 0, |
874 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
875 | scalar($4)); |
876 | TOKEN_GETMAD($2,$$,'a'); | |
877 | TOKEN_GETMAD($3,$$,'['); | |
878 | TOKEN_GETMAD($5,$$,']'); | |
879 | } | |
891be019 | 880 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
881 | { $$ = newBINOP(OP_AELEM, 0, |
882 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
883 | scalar($3)); |
884 | TOKEN_GETMAD($2,$$,'['); | |
885 | TOKEN_GETMAD($4,$$,']'); | |
886 | } | |
5a63ceef | 887 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 888 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 889 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
890 | TOKEN_GETMAD($2,$$,'{'); |
891 | TOKEN_GETMAD($4,$$,';'); | |
892 | TOKEN_GETMAD($5,$$,'}'); | |
893 | } | |
891be019 | 894 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
895 | { $$ = newBINOP(OP_HELEM, 0, |
896 | ref(newHVREF($1),OP_RV2HV), | |
897 | jmaybe($4)); | |
53a7735b | 898 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
899 | TOKEN_GETMAD($2,$$,'a'); |
900 | TOKEN_GETMAD($3,$$,'{'); | |
901 | TOKEN_GETMAD($5,$$,';'); | |
902 | TOKEN_GETMAD($6,$$,'}'); | |
903 | } | |
891be019 | 904 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
905 | { $$ = newBINOP(OP_HELEM, 0, |
906 | ref(newHVREF($1),OP_RV2HV), | |
907 | jmaybe($3)); | |
53a7735b | 908 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
909 | TOKEN_GETMAD($2,$$,'{'); |
910 | TOKEN_GETMAD($4,$$,';'); | |
911 | TOKEN_GETMAD($5,$$,'}'); | |
912 | } | |
891be019 | 913 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 914 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
915 | newCVREF(0, scalar($1))); |
916 | TOKEN_GETMAD($2,$$,'a'); | |
917 | TOKEN_GETMAD($3,$$,'('); | |
918 | TOKEN_GETMAD($4,$$,')'); | |
919 | } | |
891be019 | 920 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 921 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 922 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
923 | newCVREF(0, scalar($1)))); |
924 | TOKEN_GETMAD($2,$$,'a'); | |
925 | TOKEN_GETMAD($3,$$,'('); | |
926 | TOKEN_GETMAD($5,$$,')'); | |
927 | } | |
fad39ff1 | 928 | |
417a992d | 929 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 930 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 931 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
932 | newCVREF(0, scalar($1)))); |
933 | TOKEN_GETMAD($2,$$,'('); | |
934 | TOKEN_GETMAD($4,$$,')'); | |
935 | } | |
417a992d | 936 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 937 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
938 | newCVREF(0, scalar($1))); |
939 | TOKEN_GETMAD($2,$$,'('); | |
940 | TOKEN_GETMAD($3,$$,')'); | |
941 | } | |
9a9798c2 | 942 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
943 | { $$ = newSLICEOP(0, $5, $2); |
944 | TOKEN_GETMAD($1,$$,'('); | |
945 | TOKEN_GETMAD($3,$$,')'); | |
946 | TOKEN_GETMAD($4,$$,'['); | |
947 | TOKEN_GETMAD($6,$$,']'); | |
948 | } | |
ea25a9b2 Z |
949 | | QWLIST '[' expr ']' /* list literal slice */ |
950 | { $$ = newSLICEOP(0, $3, $1); | |
951 | TOKEN_GETMAD($2,$$,'['); | |
952 | TOKEN_GETMAD($4,$$,']'); | |
953 | } | |
9a9798c2 | 954 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 955 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
956 | TOKEN_GETMAD($1,$$,'('); |
957 | TOKEN_GETMAD($2,$$,')'); | |
958 | TOKEN_GETMAD($3,$$,'['); | |
959 | TOKEN_GETMAD($5,$$,']'); | |
960 | } | |
891be019 | 961 | ; |
fad39ff1 | 962 | |
891be019 | 963 | /* Binary operators between terms */ |
f05e27e5 DM |
964 | termbinop: term ASSIGNOP term /* $x = $y */ |
965 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
966 | TOKEN_GETMAD($2,$$,'o'); | |
967 | } | |
891be019 | 968 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
969 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
970 | TOKEN_GETMAD($2,$$,'o'); | |
971 | } | |
891be019 | 972 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 973 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 974 | scalar($1); |
f05e27e5 DM |
975 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
976 | TOKEN_GETMAD($2,$$,'o'); | |
977 | } | |
891be019 | 978 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
979 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
980 | TOKEN_GETMAD($2,$$,'o'); | |
981 | } | |
891be019 | 982 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
983 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
984 | TOKEN_GETMAD($2,$$,'o'); | |
985 | } | |
891be019 | 986 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
987 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
988 | TOKEN_GETMAD($2,$$,'o'); | |
989 | } | |
891be019 | 990 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
991 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
992 | TOKEN_GETMAD($2,$$,'o'); | |
993 | } | |
891be019 | 994 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
995 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
996 | TOKEN_GETMAD($2,$$,'o'); | |
997 | } | |
891be019 | 998 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
999 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1000 | TOKEN_GETMAD($2,$$,'o'); | |
1001 | } | |
891be019 | 1002 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
1003 | { |
1004 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 1005 | DO_MAD({ |
f05e27e5 DM |
1006 | UNOP *op; |
1007 | op = (UNOP*)$$; | |
1008 | op = (UNOP*)op->op_first; /* get to flop */ | |
1009 | op = (UNOP*)op->op_first; /* get to flip */ | |
1010 | op = (UNOP*)op->op_first; /* get to range */ | |
1011 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 1012 | }) |
f05e27e5 | 1013 | } |
891be019 | 1014 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
1015 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
1016 | TOKEN_GETMAD($2,$$,'o'); | |
1017 | } | |
891be019 | 1018 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
1019 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
1020 | TOKEN_GETMAD($2,$$,'o'); | |
1021 | } | |
c963b151 | 1022 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
1023 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
1024 | TOKEN_GETMAD($2,$$,'o'); | |
1025 | } | |
891be019 | 1026 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
1027 | { $$ = bind_match(IVAL($2), $1, $3); |
1028 | TOKEN_GETMAD($2, | |
1029 | ($$->op_type == OP_NOT | |
1030 | ? ((UNOP*)$$)->op_first : $$), | |
1031 | '~'); | |
1032 | } | |
891be019 | 1033 | ; |
8d063cd8 | 1034 | |
891be019 SC |
1035 | /* Unary operators and terms */ |
1036 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
1037 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
1038 | TOKEN_GETMAD($1,$$,'o'); | |
1039 | } | |
891be019 | 1040 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
1041 | { $$ = IF_MAD( |
1042 | newUNOP(OP_NULL, 0, $2), | |
1043 | $2 | |
1044 | ); | |
1045 | TOKEN_GETMAD($1,$$,'+'); | |
1046 | } | |
891be019 | 1047 | | '!' term /* !$x */ |
f05e27e5 DM |
1048 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1049 | TOKEN_GETMAD($1,$$,'o'); | |
1050 | } | |
891be019 | 1051 | | '~' term /* ~$x */ |
f05e27e5 DM |
1052 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1053 | TOKEN_GETMAD($1,$$,'o'); | |
1054 | } | |
891be019 | 1055 | | term POSTINC /* $x++ */ |
79072805 | 1056 | { $$ = newUNOP(OP_POSTINC, 0, |
3ad73efd | 1057 | op_lvalue(scalar($1), OP_POSTINC)); |
f05e27e5 DM |
1058 | TOKEN_GETMAD($2,$$,'o'); |
1059 | } | |
891be019 | 1060 | | term POSTDEC /* $x-- */ |
79072805 | 1061 | { $$ = newUNOP(OP_POSTDEC, 0, |
3ad73efd | 1062 | op_lvalue(scalar($1), OP_POSTDEC)); |
f05e27e5 DM |
1063 | TOKEN_GETMAD($2,$$,'o'); |
1064 | } | |
891be019 | 1065 | | PREINC term /* ++$x */ |
79072805 | 1066 | { $$ = newUNOP(OP_PREINC, 0, |
3ad73efd | 1067 | op_lvalue(scalar($2), OP_PREINC)); |
f05e27e5 DM |
1068 | TOKEN_GETMAD($1,$$,'o'); |
1069 | } | |
891be019 | 1070 | | PREDEC term /* --$x */ |
79072805 | 1071 | { $$ = newUNOP(OP_PREDEC, 0, |
3ad73efd | 1072 | op_lvalue(scalar($2), OP_PREDEC)); |
f05e27e5 DM |
1073 | TOKEN_GETMAD($1,$$,'o'); |
1074 | } | |
891be019 SC |
1075 | |
1076 | ; | |
1077 | ||
1078 | /* Constructors for anonymous data */ | |
1079 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1080 | { $$ = newANONLIST($2); |
1081 | TOKEN_GETMAD($1,$$,'['); | |
1082 | TOKEN_GETMAD($3,$$,']'); | |
1083 | } | |
891be019 | 1084 | | '[' ']' |
bcabcc50 | 1085 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1086 | TOKEN_GETMAD($1,$$,'['); |
1087 | TOKEN_GETMAD($2,$$,']'); | |
1088 | } | |
891be019 | 1089 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1090 | { $$ = newANONHASH($2); |
1091 | TOKEN_GETMAD($1,$$,'{'); | |
1092 | TOKEN_GETMAD($3,$$,';'); | |
1093 | TOKEN_GETMAD($4,$$,'}'); | |
1094 | } | |
891be019 | 1095 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1096 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1097 | TOKEN_GETMAD($1,$$,'{'); |
1098 | TOKEN_GETMAD($2,$$,';'); | |
1099 | TOKEN_GETMAD($3,$$,'}'); | |
1100 | } | |
718a7425 | 1101 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1102 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1103 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1104 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1105 | OP_GETMAD($3,$$,'s'); |
1106 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1107 | } |
891be019 SC |
1108 | |
1109 | ; | |
1110 | ||
1111 | /* Things called with "do" */ | |
1112 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1113 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1114 | TOKEN_GETMAD($1,$$,'o'); |
1115 | } | |
891be019 | 1116 | | DO block %prec '(' /* do { code */ |
3ad73efd | 1117 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2)); |
f05e27e5 DM |
1118 | TOKEN_GETMAD($1,$$,'D'); |
1119 | } | |
73f3e228 | 1120 | | DO subname '(' ')' /* do somesub() */ |
891be019 SC |
1121 | { $$ = newUNOP(OP_ENTERSUB, |
1122 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1123 | op_prepend_elem(OP_LIST, |
891be019 SC |
1124 | scalar(newCVREF( |
1125 | (OPpENTERSUB_AMPER<<8), | |
1126 | scalar($2) | |
bcabcc50 | 1127 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1128 | TOKEN_GETMAD($1,$$,'o'); |
1129 | TOKEN_GETMAD($3,$$,'('); | |
1130 | TOKEN_GETMAD($4,$$,')'); | |
1131 | } | |
73f3e228 | 1132 | | DO subname '(' expr ')' /* do somesub(@args) */ |
891be019 SC |
1133 | { $$ = newUNOP(OP_ENTERSUB, |
1134 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1135 | op_append_elem(OP_LIST, |
891be019 SC |
1136 | $4, |
1137 | scalar(newCVREF( | |
1138 | (OPpENTERSUB_AMPER<<8), | |
1139 | scalar($2) | |
f05e27e5 DM |
1140 | )))); dep(); |
1141 | TOKEN_GETMAD($1,$$,'o'); | |
1142 | TOKEN_GETMAD($3,$$,'('); | |
1143 | TOKEN_GETMAD($5,$$,')'); | |
1144 | } | |
417a992d | 1145 | | DO scalar '(' ')' /* do $subref () */ |
891be019 | 1146 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1147 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1148 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1149 | TOKEN_GETMAD($1,$$,'o'); |
1150 | TOKEN_GETMAD($3,$$,'('); | |
1151 | TOKEN_GETMAD($4,$$,')'); | |
1152 | } | |
417a992d | 1153 | | DO scalar '(' expr ')' /* do $subref (@args) */ |
891be019 | 1154 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1155 | op_prepend_elem(OP_LIST, |
891be019 | 1156 | $4, |
f05e27e5 DM |
1157 | scalar(newCVREF(0,scalar($2))))); dep(); |
1158 | TOKEN_GETMAD($1,$$,'o'); | |
1159 | TOKEN_GETMAD($3,$$,'('); | |
1160 | TOKEN_GETMAD($5,$$,')'); | |
1161 | } | |
891be019 SC |
1162 | |
1163 | ; | |
1164 | ||
1165 | term : termbinop | |
1166 | | termunop | |
1167 | | anonymous | |
1168 | | termdo | |
e9bdcc27 | 1169 | | term '?' term ':' term |
f05e27e5 DM |
1170 | { $$ = newCONDOP(0, $1, $3, $5); |
1171 | TOKEN_GETMAD($2,$$,'?'); | |
1172 | TOKEN_GETMAD($4,$$,':'); | |
1173 | } | |
891be019 | 1174 | | REFGEN term /* \$x, \@y, \%z */ |
3ad73efd | 1175 | { $$ = newUNOP(OP_REFGEN, 0, op_lvalue($2,OP_REFGEN)); |
f05e27e5 DM |
1176 | TOKEN_GETMAD($1,$$,'o'); |
1177 | } | |
09bef843 SB |
1178 | | myattrterm %prec UNIOP |
1179 | { $$ = $1; } | |
1180 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1181 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1182 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1183 | } |
a0d0e21e | 1184 | | '(' expr ')' |
f05e27e5 DM |
1185 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1186 | TOKEN_GETMAD($1,$$,'('); | |
1187 | TOKEN_GETMAD($3,$$,')'); | |
1188 | } | |
ea25a9b2 Z |
1189 | | QWLIST |
1190 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1191 | | '(' ')' |
f05e27e5 DM |
1192 | { $$ = sawparens(newNULLLIST()); |
1193 | TOKEN_GETMAD($1,$$,'('); | |
1194 | TOKEN_GETMAD($2,$$,')'); | |
1195 | } | |
79072805 | 1196 | | scalar %prec '(' |
8d063cd8 | 1197 | { $$ = $1; } |
79072805 | 1198 | | star %prec '(' |
8d063cd8 | 1199 | { $$ = $1; } |
79072805 | 1200 | | hsh %prec '(' |
8d063cd8 | 1201 | { $$ = $1; } |
79072805 | 1202 | | ary %prec '(' |
8d063cd8 | 1203 | { $$ = $1; } |
891be019 | 1204 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1205 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1206 | | subscripted |
1207 | { $$ = $1; } | |
891be019 | 1208 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1209 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1210 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1211 | newLISTOP(OP_ASLICE, 0, |
1212 | list($3), | |
f05e27e5 DM |
1213 | ref($1, OP_ASLICE))); |
1214 | TOKEN_GETMAD($2,$$,'['); | |
1215 | TOKEN_GETMAD($4,$$,']'); | |
1216 | } | |
891be019 | 1217 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1218 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1219 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1220 | newLISTOP(OP_HSLICE, 0, |
1221 | list($3), | |
a0d0e21e | 1222 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1223 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1224 | TOKEN_GETMAD($2,$$,'{'); |
1225 | TOKEN_GETMAD($4,$$,';'); | |
1226 | TOKEN_GETMAD($5,$$,'}'); | |
1227 | } | |
79072805 LW |
1228 | | THING %prec '(' |
1229 | { $$ = $1; } | |
891be019 | 1230 | | amper /* &foo; */ |
c07a80fd | 1231 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
417a992d | 1232 | | amper '(' ')' /* &foo() */ |
f05e27e5 DM |
1233 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1234 | TOKEN_GETMAD($2,$$,'('); | |
1235 | TOKEN_GETMAD($3,$$,')'); | |
1236 | } | |
417a992d | 1237 | | amper '(' expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1238 | { |
1239 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1240 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1241 | DO_MAD({ |
f05e27e5 DM |
1242 | OP* op = $$; |
1243 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1244 | op = (OP*)op->op_madprop->mad_val; | |
1245 | } | |
1246 | token_getmad($2,op,'('); | |
1247 | token_getmad($4,op,')'); | |
035e2bcc | 1248 | }) |
f05e27e5 | 1249 | } |
73f3e228 | 1250 | | NOAMP subname optlistexpr /* foo(@args) */ |
a0d0e21e | 1251 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1252 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1253 | TOKEN_GETMAD($1,$$,'o'); |
1254 | } | |
891be019 | 1255 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1256 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1257 | PL_hints |= HINT_BLOCK_SCOPE; | |
1258 | TOKEN_GETMAD($1,$$,'o'); | |
1259 | } | |
a0d0e21e | 1260 | | LOOPEX term |
f05e27e5 DM |
1261 | { $$ = newLOOPEX(IVAL($1),$2); |
1262 | TOKEN_GETMAD($1,$$,'o'); | |
1263 | } | |
09b1cffe | 1264 | | NOTOP listexpr /* not $foo */ |
f05e27e5 DM |
1265 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1266 | TOKEN_GETMAD($1,$$,'o'); | |
1267 | } | |
891be019 | 1268 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1269 | { $$ = newOP(IVAL($1), 0); |
1270 | TOKEN_GETMAD($1,$$,'o'); | |
1271 | } | |
1272 | | UNIOP block /* eval { foo }* */ | |
1273 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1274 | TOKEN_GETMAD($1,$$,'o'); | |
1275 | } | |
891be019 | 1276 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1277 | { $$ = newUNOP(IVAL($1), 0, $2); |
1278 | TOKEN_GETMAD($1,$$,'o'); | |
1279 | } | |
d2fdf8fd RGS |
1280 | | REQUIRE /* require, $_ implied */ |
1281 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1282 | TOKEN_GETMAD($1,$$,'o'); | |
1283 | } | |
1284 | | REQUIRE term /* require Foo */ | |
1285 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1286 | TOKEN_GETMAD($1,$$,'o'); | |
1287 | } | |
3cd0a11a RGS |
1288 | | UNIOPSUB |
1289 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1290 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1291 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1292 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1293 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1294 | { $$ = newOP(IVAL($1), 0); |
1295 | TOKEN_GETMAD($1,$$,'o'); | |
1296 | } | |
ae986130 | 1297 | | FUNC0 '(' ')' |
f05e27e5 DM |
1298 | { $$ = newOP(IVAL($1), 0); |
1299 | TOKEN_GETMAD($1,$$,'o'); | |
1300 | TOKEN_GETMAD($2,$$,'('); | |
1301 | TOKEN_GETMAD($3,$$,')'); | |
1302 | } | |
7eb971ee FC |
1303 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1304 | { $$ = $1; } | |
1305 | | FUNC0OP '(' ')' | |
1306 | { $$ = $1; | |
1307 | TOKEN_GETMAD($2,$$,'('); | |
1308 | TOKEN_GETMAD($3,$$,')'); | |
1309 | } | |
891be019 | 1310 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1311 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1312 | scalar($1)); } |
891be019 | 1313 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1314 | { $$ = (IVAL($1) == OP_NOT) |
1315 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1316 | : newOP(IVAL($1), OPf_SPECIAL); | |
1317 | ||
1318 | TOKEN_GETMAD($1,$$,'o'); | |
1319 | TOKEN_GETMAD($2,$$,'('); | |
1320 | TOKEN_GETMAD($3,$$,')'); | |
1321 | } | |
891be019 | 1322 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1323 | { $$ = newUNOP(IVAL($1), 0, $3); |
1324 | TOKEN_GETMAD($1,$$,'o'); | |
1325 | TOKEN_GETMAD($2,$$,'('); | |
1326 | TOKEN_GETMAD($4,$$,')'); | |
1327 | } | |
d63c20f2 DM |
1328 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1329 | { | |
1330 | if ( $1->op_type != OP_TRANS | |
1331 | && $1->op_type != OP_TRANSR | |
1332 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1333 | { | |
1334 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1335 | SAVEFREESV(PL_compcv); | |
1336 | } else | |
1337 | $<ival>$ = 0; | |
1338 | } | |
1339 | '(' listexpr ')' | |
1340 | { $$ = pmruntime($1, $4, 1, $<ival>2); | |
1341 | TOKEN_GETMAD($3,$$,'('); | |
1342 | TOKEN_GETMAD($5,$$,')'); | |
f05e27e5 | 1343 | } |
79072805 | 1344 | | WORD |
378cc40b | 1345 | | listop |
be25f609 | 1346 | | YADAYADA |
1347 | { | |
1348 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1349 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1350 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1351 | } |
88e1f1a2 | 1352 | | PLUGEXPR |
8d063cd8 LW |
1353 | ; |
1354 | ||
891be019 | 1355 | /* "my" declarations, with optional attributes */ |
09bef843 | 1356 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1357 | { $$ = my_attrs($2,$3); |
1358 | DO_MAD( | |
1359 | token_getmad($1,$$,'d'); | |
1360 | append_madprops($3->op_madprop, $$, 'a'); | |
1361 | $3->op_madprop = 0; | |
1362 | ) | |
1363 | } | |
09bef843 | 1364 | | MY myterm |
f05e27e5 DM |
1365 | { $$ = localize($2,IVAL($1)); |
1366 | TOKEN_GETMAD($1,$$,'d'); | |
1367 | } | |
09bef843 SB |
1368 | ; |
1369 | ||
891be019 | 1370 | /* Things that can be "my"'d */ |
09bef843 | 1371 | myterm : '(' expr ')' |
f05e27e5 DM |
1372 | { $$ = sawparens($2); |
1373 | TOKEN_GETMAD($1,$$,'('); | |
1374 | TOKEN_GETMAD($3,$$,')'); | |
1375 | } | |
09bef843 | 1376 | | '(' ')' |
f05e27e5 DM |
1377 | { $$ = sawparens(newNULLLIST()); |
1378 | TOKEN_GETMAD($1,$$,'('); | |
1379 | TOKEN_GETMAD($2,$$,')'); | |
1380 | } | |
09bef843 SB |
1381 | | scalar %prec '(' |
1382 | { $$ = $1; } | |
1383 | | hsh %prec '(' | |
1384 | { $$ = $1; } | |
1385 | | ary %prec '(' | |
1386 | { $$ = $1; } | |
1387 | ; | |
1388 | ||
891be019 | 1389 | /* Basic list expressions */ |
09b1cffe | 1390 | optlistexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1391 | { $$ = (OP*)NULL; } |
09b1cffe | 1392 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1393 | { $$ = $1; } |
1394 | ; | |
1395 | ||
09b1cffe | 1396 | optexpr: /* NULL */ |
bcabcc50 | 1397 | { $$ = (OP*)NULL; } |
79072805 LW |
1398 | | expr |
1399 | { $$ = $1; } | |
1400 | ; | |
1401 | ||
891be019 SC |
1402 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1403 | lexical */ | |
55497cff | 1404 | my_scalar: scalar |
12bd6ede | 1405 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1406 | ; |
1407 | ||
79072805 | 1408 | amper : '&' indirob |
f05e27e5 DM |
1409 | { $$ = newCVREF(IVAL($1),$2); |
1410 | TOKEN_GETMAD($1,$$,'&'); | |
1411 | } | |
a687059c LW |
1412 | ; |
1413 | ||
79072805 | 1414 | scalar : '$' indirob |
f05e27e5 DM |
1415 | { $$ = newSVREF($2); |
1416 | TOKEN_GETMAD($1,$$,'$'); | |
1417 | } | |
a687059c LW |
1418 | ; |
1419 | ||
79072805 | 1420 | ary : '@' indirob |
f05e27e5 DM |
1421 | { $$ = newAVREF($2); |
1422 | TOKEN_GETMAD($1,$$,'@'); | |
1423 | } | |
79072805 LW |
1424 | ; |
1425 | ||
1426 | hsh : '%' indirob | |
f05e27e5 DM |
1427 | { $$ = newHVREF($2); |
1428 | TOKEN_GETMAD($1,$$,'%'); | |
1429 | } | |
79072805 LW |
1430 | ; |
1431 | ||
1432 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1433 | { $$ = newAVREF($2); |
1434 | TOKEN_GETMAD($1,$$,'l'); | |
1435 | } | |
79072805 LW |
1436 | ; |
1437 | ||
1438 | star : '*' indirob | |
f05e27e5 DM |
1439 | { $$ = newGVREF(0,$2); |
1440 | TOKEN_GETMAD($1,$$,'*'); | |
1441 | } | |
79072805 LW |
1442 | ; |
1443 | ||
891be019 | 1444 | /* Indirect objects */ |
79072805 LW |
1445 | indirob : WORD |
1446 | { $$ = scalar($1); } | |
fad39ff1 | 1447 | | scalar %prec PREC_LOW |
f05e27e5 | 1448 | { $$ = scalar($1); } |
79072805 | 1449 | | block |
3ad73efd | 1450 | { $$ = op_scope($1); } |
79072805 | 1451 | |
93a17b20 LW |
1452 | | PRIVATEREF |
1453 | { $$ = $1; } | |
8d063cd8 | 1454 | ; |