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 | $$ = (OP*)NULL; | |
311 | #endif | |
4a273b91 | 312 | if (CvOUTSIDE(fmtcv) && !CvEVAL(CvOUTSIDE(fmtcv))) { |
eae48c89 | 313 | SvREFCNT_inc_simple_void(fmtcv); |
cc76b5cc | 314 | pad_add_anon(fmtcv, OP_NULL); |
f05e27e5 | 315 | } |
eae48c89 Z |
316 | } |
317 | | SUB startsub subname proto subattrlist subbody | |
318 | { | |
319 | SvREFCNT_inc_simple_void(PL_compcv); | |
320 | #ifdef MAD | |
321 | { | |
322 | OP* o = newSVOP(OP_ANONCODE, 0, | |
323 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
324 | $$ = newOP(OP_NULL,0); | |
325 | op_getmad(o,$$,'&'); | |
326 | op_getmad($3,$$,'n'); | |
327 | op_getmad($4,$$,'s'); | |
328 | op_getmad($5,$$,'a'); | |
329 | token_getmad($1,$$,'d'); | |
330 | append_madprops($6->op_madprop, $$, 0); | |
331 | $6->op_madprop = 0; | |
f05e27e5 | 332 | } |
eae48c89 Z |
333 | #else |
334 | newATTRSUB($2, $3, $4, $5, $6); | |
335 | $$ = (OP*)NULL; | |
336 | #endif | |
f05e27e5 | 337 | } |
eae48c89 | 338 | | MYSUB startsub subname proto subattrlist subbody |
f05e27e5 | 339 | { |
eae48c89 Z |
340 | /* Unimplemented "my sub foo { }" */ |
341 | SvREFCNT_inc_simple_void(PL_compcv); | |
342 | #ifdef MAD | |
343 | $$ = newMYSUB($2, $3, $4, $5, $6); | |
344 | token_getmad($1,$$,'d'); | |
345 | #else | |
346 | newMYSUB($2, $3, $4, $5, $6); | |
347 | $$ = (OP*)NULL; | |
348 | #endif | |
349 | } | |
350 | | PACKAGE WORD WORD ';' | |
5f211341 | 351 | { |
eae48c89 Z |
352 | #ifdef MAD |
353 | $$ = package($3); | |
354 | token_getmad($1,$$,'o'); | |
355 | if ($2) | |
356 | package_version($2); | |
357 | token_getmad($4,$$,';'); | |
358 | #else | |
359 | package($3); | |
360 | if ($2) | |
361 | package_version($2); | |
362 | $$ = (OP*)NULL; | |
363 | #endif | |
364 | } | |
365 | | USE startsub | |
366 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } | |
09b1cffe | 367 | WORD WORD optlistexpr ';' |
eae48c89 Z |
368 | { |
369 | SvREFCNT_inc_simple_void(PL_compcv); | |
370 | #ifdef MAD | |
371 | $$ = utilize(IVAL($1), $2, $4, $5, $6); | |
372 | token_getmad($1,$$,'o'); | |
373 | token_getmad($7,$$,';'); | |
374 | if (PL_parser->rsfp_filters && | |
375 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
376 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); | |
377 | #else | |
378 | utilize(IVAL($1), $2, $4, $5, $6); | |
379 | $$ = (OP*)NULL; | |
380 | #endif | |
381 | } | |
417a992d | 382 | | IF '(' remember mexpr ')' mblock else |
eae48c89 | 383 | { |
3ad73efd Z |
384 | $$ = block_end($3, |
385 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
386 | TOKEN_GETMAD($1,$$,'I'); |
387 | TOKEN_GETMAD($2,$$,'('); | |
388 | TOKEN_GETMAD($5,$$,')'); | |
389 | PL_parser->copline = (line_t)IVAL($1); | |
390 | } | |
417a992d | 391 | | UNLESS '(' remember miexpr ')' mblock else |
eae48c89 | 392 | { |
3ad73efd Z |
393 | $$ = block_end($3, |
394 | newCONDOP(0, $4, op_scope($6), $7)); | |
eae48c89 Z |
395 | TOKEN_GETMAD($1,$$,'I'); |
396 | TOKEN_GETMAD($2,$$,'('); | |
397 | TOKEN_GETMAD($5,$$,')'); | |
398 | PL_parser->copline = (line_t)IVAL($1); | |
399 | } | |
b5a64814 | 400 | | GIVEN '(' remember mexpr ')' mblock |
eae48c89 | 401 | { |
b5a64814 | 402 | const PADOFFSET offset = pad_findmy_pvs("$_", 0); |
eae48c89 | 403 | $$ = block_end($3, |
b5a64814 FC |
404 | newGIVENOP($4, op_scope($6), |
405 | offset == NOT_IN_PAD | |
406 | || PAD_COMPNAME_FLAGS_isOUR(offset) | |
407 | ? 0 | |
408 | : offset)); | |
eae48c89 Z |
409 | PL_parser->copline = (line_t)IVAL($1); |
410 | } | |
417a992d | 411 | | WHEN '(' remember mexpr ')' mblock |
3ad73efd | 412 | { $$ = block_end($3, newWHENOP($4, op_scope($6))); } |
eae48c89 | 413 | | DEFAULT block |
3ad73efd | 414 | { $$ = newWHENOP(0, op_scope($2)); } |
417a992d | 415 | | WHILE '(' remember texpr ')' mintro mblock cont |
eae48c89 Z |
416 | { |
417 | $$ = block_end($3, | |
418 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 419 | $4, $7, $8, $6)); |
eae48c89 Z |
420 | TOKEN_GETMAD($1,$$,'W'); |
421 | TOKEN_GETMAD($2,$$,'('); | |
422 | TOKEN_GETMAD($5,$$,')'); | |
423 | PL_parser->copline = (line_t)IVAL($1); | |
424 | } | |
417a992d | 425 | | UNTIL '(' remember iexpr ')' mintro mblock cont |
eae48c89 Z |
426 | { |
427 | $$ = block_end($3, | |
94bf0465 Z |
428 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
429 | $4, $7, $8, $6)); | |
eae48c89 Z |
430 | TOKEN_GETMAD($1,$$,'W'); |
431 | TOKEN_GETMAD($2,$$,'('); | |
432 | TOKEN_GETMAD($5,$$,')'); | |
433 | PL_parser->copline = (line_t)IVAL($1); | |
434 | } | |
417a992d | 435 | | FOR '(' remember mnexpr ';' texpr ';' mintro mnexpr ')' |
eae48c89 Z |
436 | mblock |
437 | { | |
438 | OP *initop = IF_MAD($4 ? $4 : newOP(OP_NULL, 0), $4); | |
439 | OP *forop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 440 | scalar($6), $11, $9, $8); |
eae48c89 Z |
441 | if (initop) { |
442 | forop = op_prepend_elem(OP_LINESEQ, initop, | |
443 | op_append_elem(OP_LINESEQ, | |
444 | newOP(OP_UNSTACK, OPf_SPECIAL), | |
445 | forop)); | |
5f211341 | 446 | } |
eae48c89 Z |
447 | DO_MAD({ forop = newUNOP(OP_NULL, 0, forop); }) |
448 | $$ = block_end($3, forop); | |
449 | TOKEN_GETMAD($1,$$,'3'); | |
450 | TOKEN_GETMAD($2,$$,'('); | |
451 | TOKEN_GETMAD($5,$$,'1'); | |
452 | TOKEN_GETMAD($7,$$,'2'); | |
453 | TOKEN_GETMAD($10,$$,')'); | |
454 | PL_parser->copline = (line_t)IVAL($1); | |
455 | } | |
417a992d | 456 | | FOR MY remember my_scalar '(' mexpr ')' mblock cont |
eae48c89 | 457 | { |
94bf0465 | 458 | $$ = block_end($3, newFOROP(0, $4, $6, $8, $9)); |
eae48c89 Z |
459 | TOKEN_GETMAD($1,$$,'W'); |
460 | TOKEN_GETMAD($2,$$,'d'); | |
461 | TOKEN_GETMAD($5,$$,'('); | |
462 | TOKEN_GETMAD($7,$$,')'); | |
463 | PL_parser->copline = (line_t)IVAL($1); | |
464 | } | |
417a992d | 465 | | FOR scalar '(' remember mexpr ')' mblock cont |
eae48c89 | 466 | { |
94bf0465 | 467 | $$ = block_end($4, newFOROP(0, |
3ad73efd | 468 | op_lvalue($2, OP_ENTERLOOP), $5, $7, $8)); |
eae48c89 Z |
469 | TOKEN_GETMAD($1,$$,'W'); |
470 | TOKEN_GETMAD($3,$$,'('); | |
471 | TOKEN_GETMAD($6,$$,')'); | |
472 | PL_parser->copline = (line_t)IVAL($1); | |
473 | } | |
417a992d | 474 | | FOR '(' remember mexpr ')' mblock cont |
eae48c89 Z |
475 | { |
476 | $$ = block_end($3, | |
94bf0465 | 477 | newFOROP(0, (OP*)NULL, $4, $6, $7)); |
eae48c89 Z |
478 | TOKEN_GETMAD($1,$$,'W'); |
479 | TOKEN_GETMAD($2,$$,'('); | |
480 | TOKEN_GETMAD($5,$$,')'); | |
481 | PL_parser->copline = (line_t)IVAL($1); | |
482 | } | |
483 | | block cont | |
484 | { | |
485 | /* a block is a loop that happens once */ | |
486 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
94bf0465 | 487 | (OP*)NULL, $1, $2, 0); |
eae48c89 Z |
488 | } |
489 | | PACKAGE WORD WORD '{' remember | |
490 | { | |
eae48c89 | 491 | package($3); |
eae48c89 | 492 | if ($2) { |
eae48c89 | 493 | package_version($2); |
eae48c89 Z |
494 | } |
495 | } | |
496 | stmtseq '}' | |
497 | { | |
498 | /* a block is a loop that happens once */ | |
94bf0465 | 499 | $$ = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
eae48c89 | 500 | (OP*)NULL, block_end($5, $7), (OP*)NULL, 0); |
eae48c89 Z |
501 | TOKEN_GETMAD($4,$$,'{'); |
502 | TOKEN_GETMAD($8,$$,'}'); | |
503 | if (PL_parser->copline > (line_t)IVAL($4)) | |
504 | PL_parser->copline = (line_t)IVAL($4); | |
505 | } | |
506 | | sideff ';' | |
507 | { | |
508 | PL_parser->expect = XSTATE; | |
509 | $$ = $1; | |
510 | TOKEN_GETMAD($2,$$,';'); | |
511 | } | |
512 | | ';' | |
513 | { | |
514 | PL_parser->expect = XSTATE; | |
515 | $$ = IF_MAD(newOP(OP_NULL, 0), (OP*)NULL); | |
516 | TOKEN_GETMAD($1,$$,';'); | |
517 | PL_parser->copline = NOLINE; | |
5f211341 | 518 | } |
8d063cd8 LW |
519 | ; |
520 | ||
705fe0e5 FC |
521 | /* Format line */ |
522 | formline: THING formarg | |
523 | { OP *list; | |
524 | if ($2) { | |
525 | OP *term = $2; | |
526 | DO_MAD(term = newUNOP(OP_NULL, 0, term)); | |
527 | list = op_append_elem(OP_LIST, $1, term); | |
528 | } | |
529 | else { | |
530 | #ifdef MAD | |
531 | OP *op = newNULLLIST(); | |
532 | list = op_append_elem(OP_LIST, $1, op); | |
533 | #else | |
534 | list = $1; | |
535 | #endif | |
536 | } | |
537 | if (PL_parser->copline == NOLINE) | |
538 | PL_parser->copline = CopLINE(PL_curcop)-1; | |
539 | else PL_parser->copline--; | |
540 | $$ = newSTATEOP(0, NULL, | |
541 | convert(OP_FORMLINE, 0, list)); | |
542 | } | |
543 | ; | |
544 | ||
545 | formarg : /* NULL */ | |
546 | { $$ = NULL; } | |
547 | | FORMLBRACK stmtseq FORMRBRACK | |
548 | { $$ = op_unscope($2); } | |
549 | ; | |
550 | ||
891be019 | 551 | /* An expression which may have a side-effect */ |
a687059c | 552 | sideff : error |
bcabcc50 | 553 | { $$ = (OP*)NULL; } |
a687059c | 554 | | expr |
79072805 | 555 | { $$ = $1; } |
a687059c | 556 | | expr IF expr |
f05e27e5 DM |
557 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
558 | TOKEN_GETMAD($2,$$,'i'); | |
559 | } | |
a687059c | 560 | | expr UNLESS expr |
f05e27e5 DM |
561 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
562 | TOKEN_GETMAD($2,$$,'i'); | |
563 | } | |
a687059c | 564 | | expr WHILE expr |
f05e27e5 DM |
565 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
566 | TOKEN_GETMAD($2,$$,'w'); | |
567 | } | |
55497cff | 568 | | expr UNTIL iexpr |
f05e27e5 DM |
569 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
570 | TOKEN_GETMAD($2,$$,'w'); | |
571 | } | |
ecca16b0 | 572 | | expr FOR expr |
94bf0465 | 573 | { $$ = newFOROP(0, (OP*)NULL, $3, $1, (OP*)NULL); |
eae48c89 | 574 | TOKEN_GETMAD($2,$$,'w'); |
94bf0465 | 575 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 576 | } |
f20dcd76 | 577 | | expr WHEN expr |
3ad73efd | 578 | { $$ = newWHENOP($3, op_scope($1)); } |
79072805 LW |
579 | ; |
580 | ||
891be019 | 581 | /* else and elsif blocks */ |
79072805 | 582 | else : /* NULL */ |
bcabcc50 | 583 | { $$ = (OP*)NULL; } |
55497cff | 584 | | ELSE mblock |
3ad73efd Z |
585 | { |
586 | ($2)->op_flags |= OPf_PARENS; | |
587 | $$ = op_scope($2); | |
f05e27e5 DM |
588 | TOKEN_GETMAD($1,$$,'o'); |
589 | } | |
417a992d | 590 | | ELSIF '(' mexpr ')' mblock else |
53a7735b | 591 | { PL_parser->copline = (line_t)IVAL($1); |
3ad73efd Z |
592 | $$ = newCONDOP(0, |
593 | newSTATEOP(OPf_SPECIAL,NULL,$3), | |
594 | op_scope($5), $6); | |
595 | PL_hints |= HINT_BLOCK_SCOPE; | |
f05e27e5 DM |
596 | TOKEN_GETMAD($1,$$,'I'); |
597 | TOKEN_GETMAD($2,$$,'('); | |
598 | TOKEN_GETMAD($4,$$,')'); | |
599 | } | |
79072805 LW |
600 | ; |
601 | ||
891be019 | 602 | /* Continue blocks */ |
79072805 | 603 | cont : /* NULL */ |
bcabcc50 | 604 | { $$ = (OP*)NULL; } |
79072805 | 605 | | CONTINUE block |
3ad73efd Z |
606 | { |
607 | $$ = op_scope($2); | |
f05e27e5 DM |
608 | TOKEN_GETMAD($1,$$,'o'); |
609 | } | |
79072805 LW |
610 | ; |
611 | ||
a034e688 DM |
612 | /* determine whether there are any new my declarations */ |
613 | mintro : /* NULL */ | |
614 | { $$ = (PL_min_intro_pending && | |
615 | PL_max_intro_pending >= PL_min_intro_pending); | |
616 | intro_my(); } | |
617 | ||
891be019 | 618 | /* Normal expression */ |
8d063cd8 | 619 | nexpr : /* NULL */ |
bcabcc50 | 620 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
621 | | sideff |
622 | ; | |
623 | ||
891be019 | 624 | /* Boolean expression */ |
8d063cd8 | 625 | texpr : /* NULL means true */ |
f05e27e5 DM |
626 | { YYSTYPE tmplval; |
627 | (void)scan_num("1", &tmplval); | |
628 | $$ = tmplval.opval; } | |
8d063cd8 LW |
629 | | expr |
630 | ; | |
631 | ||
891be019 | 632 | /* Inverted boolean expression */ |
55497cff | 633 | iexpr : expr |
634 | { $$ = invert(scalar($1)); } | |
635 | ; | |
636 | ||
891be019 | 637 | /* Expression with its own lexical scope */ |
55497cff | 638 | mexpr : expr |
bbce6d69 | 639 | { $$ = $1; intro_my(); } |
640 | ; | |
641 | ||
642 | mnexpr : nexpr | |
643 | { $$ = $1; intro_my(); } | |
55497cff | 644 | ; |
645 | ||
55497cff | 646 | miexpr : iexpr |
bbce6d69 | 647 | { $$ = $1; intro_my(); } |
55497cff | 648 | ; |
649 | ||
44a8e56a | 650 | formname: WORD { $$ = $1; } |
bcabcc50 | 651 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
652 | ; |
653 | ||
fa83b5b6 | 654 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
655 | { $$ = start_subparse(FALSE, 0); |
656 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 657 | |
28757baa | 658 | ; |
659 | ||
660 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
661 | { $$ = start_subparse(FALSE, CVf_ANON); |
662 | SAVEFREESV(PL_compcv); } | |
28757baa | 663 | ; |
664 | ||
44a8e56a | 665 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
666 | { $$ = start_subparse(TRUE, 0); |
667 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 668 | ; |
669 | ||
891be019 | 670 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 671 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 672 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
673 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
674 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 675 | CvSPECIAL_on(PL_compcv); |
28757baa | 676 | $$ = $1; } |
a0d0e21e LW |
677 | ; |
678 | ||
891be019 | 679 | /* Subroutine prototype */ |
4633a7c4 | 680 | proto : /* NULL */ |
bcabcc50 | 681 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
682 | | THING |
683 | ; | |
28757baa | 684 | |
891be019 | 685 | /* Optional list of subroutine attributes */ |
09bef843 | 686 | subattrlist: /* NULL */ |
bcabcc50 | 687 | { $$ = (OP*)NULL; } |
09bef843 | 688 | | COLONATTR THING |
f05e27e5 DM |
689 | { $$ = $2; |
690 | TOKEN_GETMAD($1,$$,':'); | |
691 | } | |
09bef843 | 692 | | COLONATTR |
f05e27e5 DM |
693 | { $$ = IF_MAD( |
694 | newOP(OP_NULL, 0), | |
bcabcc50 | 695 | (OP*)NULL |
f05e27e5 DM |
696 | ); |
697 | TOKEN_GETMAD($1,$$,':'); | |
698 | } | |
09bef843 SB |
699 | ; |
700 | ||
891be019 | 701 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 702 | myattrlist: COLONATTR THING |
f05e27e5 DM |
703 | { $$ = $2; |
704 | TOKEN_GETMAD($1,$$,':'); | |
705 | } | |
09bef843 | 706 | | COLONATTR |
f05e27e5 DM |
707 | { $$ = IF_MAD( |
708 | newOP(OP_NULL, 0), | |
bcabcc50 | 709 | (OP*)NULL |
f05e27e5 DM |
710 | ); |
711 | TOKEN_GETMAD($1,$$,':'); | |
712 | } | |
09bef843 SB |
713 | ; |
714 | ||
891be019 | 715 | /* Subroutine body - either null or a block */ |
28757baa | 716 | subbody : block { $$ = $1; } |
f05e27e5 DM |
717 | | ';' { $$ = IF_MAD( |
718 | newOP(OP_NULL,0), | |
bcabcc50 | 719 | (OP*)NULL |
f05e27e5 | 720 | ); |
53a7735b | 721 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
722 | TOKEN_GETMAD($1,$$,';'); |
723 | } | |
8d063cd8 LW |
724 | ; |
725 | ||
891be019 | 726 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 727 | expr : expr ANDOP expr |
f05e27e5 DM |
728 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
729 | TOKEN_GETMAD($2,$$,'o'); | |
730 | } | |
a0d0e21e | 731 | | expr OROP expr |
f05e27e5 DM |
732 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
733 | TOKEN_GETMAD($2,$$,'o'); | |
734 | } | |
c963b151 | 735 | | expr DOROP expr |
f05e27e5 DM |
736 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
737 | TOKEN_GETMAD($2,$$,'o'); | |
738 | } | |
09b1cffe | 739 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
740 | ; |
741 | ||
891be019 | 742 | /* Expressions are a list of terms joined by commas */ |
09b1cffe | 743 | listexpr: listexpr ',' |
f05e27e5 DM |
744 | { |
745 | #ifdef MAD | |
746 | OP* op = newNULLLIST(); | |
747 | token_getmad($2,op,','); | |
2fcb4757 | 748 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
749 | #else |
750 | $$ = $1; | |
751 | #endif | |
752 | } | |
09b1cffe | 753 | | listexpr ',' term |
f05e27e5 | 754 | { |
29522234 | 755 | OP* term = $3; |
f05e27e5 | 756 | DO_MAD( |
29522234 DM |
757 | term = newUNOP(OP_NULL, 0, term); |
758 | token_getmad($2,term,','); | |
f05e27e5 | 759 | ) |
2fcb4757 | 760 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 761 | } |
fad39ff1 | 762 | | term %prec PREC_LOW |
8d063cd8 LW |
763 | ; |
764 | ||
891be019 | 765 | /* List operators */ |
09b1cffe | 766 | listop : LSTOP indirob listexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 767 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 768 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
769 | TOKEN_GETMAD($1,$$,'o'); |
770 | } | |
891be019 | 771 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 772 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 773 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
774 | TOKEN_GETMAD($1,$$,'o'); |
775 | TOKEN_GETMAD($2,$$,'('); | |
776 | TOKEN_GETMAD($5,$$,')'); | |
777 | } | |
417a992d | 778 | | term ARROW method '(' optexpr ')' /* $foo->bar(list) */ |
4633a7c4 | 779 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
780 | op_append_elem(OP_LIST, |
781 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
782 | newUNOP(OP_METHOD, 0, $3))); |
783 | TOKEN_GETMAD($2,$$,'A'); | |
784 | TOKEN_GETMAD($4,$$,'('); | |
785 | TOKEN_GETMAD($6,$$,')'); | |
786 | } | |
891be019 | 787 | | term ARROW method /* $foo->bar */ |
b1524f17 | 788 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 789 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
790 | newUNOP(OP_METHOD, 0, $3))); |
791 | TOKEN_GETMAD($2,$$,'A'); | |
792 | } | |
09b1cffe | 793 | | METHOD indirob optlistexpr /* new Class @args */ |
4633a7c4 | 794 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
795 | op_append_elem(OP_LIST, |
796 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
797 | newUNOP(OP_METHOD, 0, $1))); |
798 | } | |
09b1cffe | 799 | | FUNCMETH indirob '(' optexpr ')' /* method $object (@args) */ |
4633a7c4 | 800 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
801 | op_append_elem(OP_LIST, |
802 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
803 | newUNOP(OP_METHOD, 0, $1))); |
804 | TOKEN_GETMAD($3,$$,'('); | |
805 | TOKEN_GETMAD($5,$$,')'); | |
806 | } | |
09b1cffe | 807 | | LSTOP optlistexpr /* print @args */ |
f05e27e5 DM |
808 | { $$ = convert(IVAL($1), 0, $2); |
809 | TOKEN_GETMAD($1,$$,'o'); | |
810 | } | |
09b1cffe | 811 | | FUNC '(' optexpr ')' /* print (@args) */ |
f05e27e5 DM |
812 | { $$ = convert(IVAL($1), 0, $3); |
813 | TOKEN_GETMAD($1,$$,'o'); | |
814 | TOKEN_GETMAD($2,$$,'('); | |
815 | TOKEN_GETMAD($4,$$,')'); | |
816 | } | |
718a7425 | 817 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 818 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 819 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
09b1cffe | 820 | optlistexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 821 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
822 | op_append_elem(OP_LIST, |
823 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 824 | } |
a687059c LW |
825 | ; |
826 | ||
891be019 | 827 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
828 | method : METHOD |
829 | | scalar | |
830 | ; | |
831 | ||
891be019 SC |
832 | /* Some kind of subscripted expression */ |
833 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
834 | /* In this and all the hash accessors, ';' is | |
835 | * provided by the tokeniser */ | |
264e1af3 | 836 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 837 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
838 | TOKEN_GETMAD($2,$$,'{'); |
839 | TOKEN_GETMAD($4,$$,';'); | |
840 | TOKEN_GETMAD($5,$$,'}'); | |
841 | } | |
891be019 | 842 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
843 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
844 | TOKEN_GETMAD($2,$$,'['); | |
845 | TOKEN_GETMAD($4,$$,']'); | |
846 | } | |
891be019 | 847 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
848 | { $$ = newBINOP(OP_AELEM, 0, |
849 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
850 | scalar($4)); |
851 | TOKEN_GETMAD($2,$$,'a'); | |
852 | TOKEN_GETMAD($3,$$,'['); | |
853 | TOKEN_GETMAD($5,$$,']'); | |
854 | } | |
891be019 | 855 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
856 | { $$ = newBINOP(OP_AELEM, 0, |
857 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
858 | scalar($3)); |
859 | TOKEN_GETMAD($2,$$,'['); | |
860 | TOKEN_GETMAD($4,$$,']'); | |
861 | } | |
5a63ceef | 862 | | scalar '{' expr ';' '}' /* $foo{bar();} */ |
fad39ff1 | 863 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 864 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
865 | TOKEN_GETMAD($2,$$,'{'); |
866 | TOKEN_GETMAD($4,$$,';'); | |
867 | TOKEN_GETMAD($5,$$,'}'); | |
868 | } | |
891be019 | 869 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
870 | { $$ = newBINOP(OP_HELEM, 0, |
871 | ref(newHVREF($1),OP_RV2HV), | |
872 | jmaybe($4)); | |
53a7735b | 873 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
874 | TOKEN_GETMAD($2,$$,'a'); |
875 | TOKEN_GETMAD($3,$$,'{'); | |
876 | TOKEN_GETMAD($5,$$,';'); | |
877 | TOKEN_GETMAD($6,$$,'}'); | |
878 | } | |
891be019 | 879 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
880 | { $$ = newBINOP(OP_HELEM, 0, |
881 | ref(newHVREF($1),OP_RV2HV), | |
882 | jmaybe($3)); | |
53a7735b | 883 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
884 | TOKEN_GETMAD($2,$$,'{'); |
885 | TOKEN_GETMAD($4,$$,';'); | |
886 | TOKEN_GETMAD($5,$$,'}'); | |
887 | } | |
891be019 | 888 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 889 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
890 | newCVREF(0, scalar($1))); |
891 | TOKEN_GETMAD($2,$$,'a'); | |
892 | TOKEN_GETMAD($3,$$,'('); | |
893 | TOKEN_GETMAD($4,$$,')'); | |
894 | } | |
891be019 | 895 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 896 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 897 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
898 | newCVREF(0, scalar($1)))); |
899 | TOKEN_GETMAD($2,$$,'a'); | |
900 | TOKEN_GETMAD($3,$$,'('); | |
901 | TOKEN_GETMAD($5,$$,')'); | |
902 | } | |
fad39ff1 | 903 | |
417a992d | 904 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 905 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 906 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
907 | newCVREF(0, scalar($1)))); |
908 | TOKEN_GETMAD($2,$$,'('); | |
909 | TOKEN_GETMAD($4,$$,')'); | |
910 | } | |
417a992d | 911 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 912 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
913 | newCVREF(0, scalar($1))); |
914 | TOKEN_GETMAD($2,$$,'('); | |
915 | TOKEN_GETMAD($3,$$,')'); | |
916 | } | |
9a9798c2 | 917 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
918 | { $$ = newSLICEOP(0, $5, $2); |
919 | TOKEN_GETMAD($1,$$,'('); | |
920 | TOKEN_GETMAD($3,$$,')'); | |
921 | TOKEN_GETMAD($4,$$,'['); | |
922 | TOKEN_GETMAD($6,$$,']'); | |
923 | } | |
ea25a9b2 Z |
924 | | QWLIST '[' expr ']' /* list literal slice */ |
925 | { $$ = newSLICEOP(0, $3, $1); | |
926 | TOKEN_GETMAD($2,$$,'['); | |
927 | TOKEN_GETMAD($4,$$,']'); | |
928 | } | |
9a9798c2 | 929 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 930 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
931 | TOKEN_GETMAD($1,$$,'('); |
932 | TOKEN_GETMAD($2,$$,')'); | |
933 | TOKEN_GETMAD($3,$$,'['); | |
934 | TOKEN_GETMAD($5,$$,']'); | |
935 | } | |
891be019 | 936 | ; |
fad39ff1 | 937 | |
891be019 | 938 | /* Binary operators between terms */ |
f05e27e5 DM |
939 | termbinop: term ASSIGNOP term /* $x = $y */ |
940 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
941 | TOKEN_GETMAD($2,$$,'o'); | |
942 | } | |
891be019 | 943 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
944 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
945 | TOKEN_GETMAD($2,$$,'o'); | |
946 | } | |
891be019 | 947 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 948 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 949 | scalar($1); |
f05e27e5 DM |
950 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
951 | TOKEN_GETMAD($2,$$,'o'); | |
952 | } | |
891be019 | 953 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
954 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
955 | TOKEN_GETMAD($2,$$,'o'); | |
956 | } | |
891be019 | 957 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
958 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
959 | TOKEN_GETMAD($2,$$,'o'); | |
960 | } | |
891be019 | 961 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
962 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
963 | TOKEN_GETMAD($2,$$,'o'); | |
964 | } | |
891be019 | 965 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
966 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
967 | TOKEN_GETMAD($2,$$,'o'); | |
968 | } | |
891be019 | 969 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
970 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
971 | TOKEN_GETMAD($2,$$,'o'); | |
972 | } | |
891be019 | 973 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
974 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
975 | TOKEN_GETMAD($2,$$,'o'); | |
976 | } | |
891be019 | 977 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
978 | { |
979 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 980 | DO_MAD({ |
f05e27e5 DM |
981 | UNOP *op; |
982 | op = (UNOP*)$$; | |
983 | op = (UNOP*)op->op_first; /* get to flop */ | |
984 | op = (UNOP*)op->op_first; /* get to flip */ | |
985 | op = (UNOP*)op->op_first; /* get to range */ | |
986 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 987 | }) |
f05e27e5 | 988 | } |
891be019 | 989 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
990 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
991 | TOKEN_GETMAD($2,$$,'o'); | |
992 | } | |
891be019 | 993 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
994 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
995 | TOKEN_GETMAD($2,$$,'o'); | |
996 | } | |
c963b151 | 997 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
998 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
999 | TOKEN_GETMAD($2,$$,'o'); | |
1000 | } | |
891be019 | 1001 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
1002 | { $$ = bind_match(IVAL($2), $1, $3); |
1003 | TOKEN_GETMAD($2, | |
1004 | ($$->op_type == OP_NOT | |
1005 | ? ((UNOP*)$$)->op_first : $$), | |
1006 | '~'); | |
1007 | } | |
891be019 | 1008 | ; |
8d063cd8 | 1009 | |
891be019 SC |
1010 | /* Unary operators and terms */ |
1011 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
1012 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
1013 | TOKEN_GETMAD($1,$$,'o'); | |
1014 | } | |
891be019 | 1015 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
1016 | { $$ = IF_MAD( |
1017 | newUNOP(OP_NULL, 0, $2), | |
1018 | $2 | |
1019 | ); | |
1020 | TOKEN_GETMAD($1,$$,'+'); | |
1021 | } | |
891be019 | 1022 | | '!' term /* !$x */ |
f05e27e5 DM |
1023 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1024 | TOKEN_GETMAD($1,$$,'o'); | |
1025 | } | |
891be019 | 1026 | | '~' term /* ~$x */ |
f05e27e5 DM |
1027 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1028 | TOKEN_GETMAD($1,$$,'o'); | |
1029 | } | |
891be019 | 1030 | | term POSTINC /* $x++ */ |
79072805 | 1031 | { $$ = newUNOP(OP_POSTINC, 0, |
3ad73efd | 1032 | op_lvalue(scalar($1), OP_POSTINC)); |
f05e27e5 DM |
1033 | TOKEN_GETMAD($2,$$,'o'); |
1034 | } | |
891be019 | 1035 | | term POSTDEC /* $x-- */ |
79072805 | 1036 | { $$ = newUNOP(OP_POSTDEC, 0, |
3ad73efd | 1037 | op_lvalue(scalar($1), OP_POSTDEC)); |
f05e27e5 DM |
1038 | TOKEN_GETMAD($2,$$,'o'); |
1039 | } | |
891be019 | 1040 | | PREINC term /* ++$x */ |
79072805 | 1041 | { $$ = newUNOP(OP_PREINC, 0, |
3ad73efd | 1042 | op_lvalue(scalar($2), OP_PREINC)); |
f05e27e5 DM |
1043 | TOKEN_GETMAD($1,$$,'o'); |
1044 | } | |
891be019 | 1045 | | PREDEC term /* --$x */ |
79072805 | 1046 | { $$ = newUNOP(OP_PREDEC, 0, |
3ad73efd | 1047 | op_lvalue(scalar($2), OP_PREDEC)); |
f05e27e5 DM |
1048 | TOKEN_GETMAD($1,$$,'o'); |
1049 | } | |
891be019 SC |
1050 | |
1051 | ; | |
1052 | ||
1053 | /* Constructors for anonymous data */ | |
1054 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1055 | { $$ = newANONLIST($2); |
1056 | TOKEN_GETMAD($1,$$,'['); | |
1057 | TOKEN_GETMAD($3,$$,']'); | |
1058 | } | |
891be019 | 1059 | | '[' ']' |
bcabcc50 | 1060 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1061 | TOKEN_GETMAD($1,$$,'['); |
1062 | TOKEN_GETMAD($2,$$,']'); | |
1063 | } | |
891be019 | 1064 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1065 | { $$ = newANONHASH($2); |
1066 | TOKEN_GETMAD($1,$$,'{'); | |
1067 | TOKEN_GETMAD($3,$$,';'); | |
1068 | TOKEN_GETMAD($4,$$,'}'); | |
1069 | } | |
891be019 | 1070 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1071 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1072 | TOKEN_GETMAD($1,$$,'{'); |
1073 | TOKEN_GETMAD($2,$$,';'); | |
1074 | TOKEN_GETMAD($3,$$,'}'); | |
1075 | } | |
718a7425 | 1076 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1077 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1078 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1079 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1080 | OP_GETMAD($3,$$,'s'); |
1081 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1082 | } |
891be019 SC |
1083 | |
1084 | ; | |
1085 | ||
1086 | /* Things called with "do" */ | |
1087 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1088 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1089 | TOKEN_GETMAD($1,$$,'o'); |
1090 | } | |
891be019 | 1091 | | DO block %prec '(' /* do { code */ |
3ad73efd | 1092 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, op_scope($2)); |
f05e27e5 DM |
1093 | TOKEN_GETMAD($1,$$,'D'); |
1094 | } | |
417a992d | 1095 | | DO WORD '(' ')' /* do somesub() */ |
891be019 SC |
1096 | { $$ = newUNOP(OP_ENTERSUB, |
1097 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1098 | op_prepend_elem(OP_LIST, |
891be019 SC |
1099 | scalar(newCVREF( |
1100 | (OPpENTERSUB_AMPER<<8), | |
1101 | scalar($2) | |
bcabcc50 | 1102 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1103 | TOKEN_GETMAD($1,$$,'o'); |
1104 | TOKEN_GETMAD($3,$$,'('); | |
1105 | TOKEN_GETMAD($4,$$,')'); | |
1106 | } | |
417a992d | 1107 | | DO WORD '(' expr ')' /* do somesub(@args) */ |
891be019 SC |
1108 | { $$ = newUNOP(OP_ENTERSUB, |
1109 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1110 | op_append_elem(OP_LIST, |
891be019 SC |
1111 | $4, |
1112 | scalar(newCVREF( | |
1113 | (OPpENTERSUB_AMPER<<8), | |
1114 | scalar($2) | |
f05e27e5 DM |
1115 | )))); dep(); |
1116 | TOKEN_GETMAD($1,$$,'o'); | |
1117 | TOKEN_GETMAD($3,$$,'('); | |
1118 | TOKEN_GETMAD($5,$$,')'); | |
1119 | } | |
417a992d | 1120 | | DO scalar '(' ')' /* do $subref () */ |
891be019 | 1121 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1122 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1123 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1124 | TOKEN_GETMAD($1,$$,'o'); |
1125 | TOKEN_GETMAD($3,$$,'('); | |
1126 | TOKEN_GETMAD($4,$$,')'); | |
1127 | } | |
417a992d | 1128 | | DO scalar '(' expr ')' /* do $subref (@args) */ |
891be019 | 1129 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1130 | op_prepend_elem(OP_LIST, |
891be019 | 1131 | $4, |
f05e27e5 DM |
1132 | scalar(newCVREF(0,scalar($2))))); dep(); |
1133 | TOKEN_GETMAD($1,$$,'o'); | |
1134 | TOKEN_GETMAD($3,$$,'('); | |
1135 | TOKEN_GETMAD($5,$$,')'); | |
1136 | } | |
891be019 SC |
1137 | |
1138 | ; | |
1139 | ||
1140 | term : termbinop | |
1141 | | termunop | |
1142 | | anonymous | |
1143 | | termdo | |
e9bdcc27 | 1144 | | term '?' term ':' term |
f05e27e5 DM |
1145 | { $$ = newCONDOP(0, $1, $3, $5); |
1146 | TOKEN_GETMAD($2,$$,'?'); | |
1147 | TOKEN_GETMAD($4,$$,':'); | |
1148 | } | |
891be019 | 1149 | | REFGEN term /* \$x, \@y, \%z */ |
3ad73efd | 1150 | { $$ = newUNOP(OP_REFGEN, 0, op_lvalue($2,OP_REFGEN)); |
f05e27e5 DM |
1151 | TOKEN_GETMAD($1,$$,'o'); |
1152 | } | |
09bef843 SB |
1153 | | myattrterm %prec UNIOP |
1154 | { $$ = $1; } | |
1155 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1156 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1157 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1158 | } |
a0d0e21e | 1159 | | '(' expr ')' |
f05e27e5 DM |
1160 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1161 | TOKEN_GETMAD($1,$$,'('); | |
1162 | TOKEN_GETMAD($3,$$,')'); | |
1163 | } | |
ea25a9b2 Z |
1164 | | QWLIST |
1165 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1166 | | '(' ')' |
f05e27e5 DM |
1167 | { $$ = sawparens(newNULLLIST()); |
1168 | TOKEN_GETMAD($1,$$,'('); | |
1169 | TOKEN_GETMAD($2,$$,')'); | |
1170 | } | |
79072805 | 1171 | | scalar %prec '(' |
8d063cd8 | 1172 | { $$ = $1; } |
79072805 | 1173 | | star %prec '(' |
8d063cd8 | 1174 | { $$ = $1; } |
79072805 | 1175 | | hsh %prec '(' |
8d063cd8 | 1176 | { $$ = $1; } |
79072805 | 1177 | | ary %prec '(' |
8d063cd8 | 1178 | { $$ = $1; } |
891be019 | 1179 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1180 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1181 | | subscripted |
1182 | { $$ = $1; } | |
891be019 | 1183 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1184 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1185 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1186 | newLISTOP(OP_ASLICE, 0, |
1187 | list($3), | |
f05e27e5 DM |
1188 | ref($1, OP_ASLICE))); |
1189 | TOKEN_GETMAD($2,$$,'['); | |
1190 | TOKEN_GETMAD($4,$$,']'); | |
1191 | } | |
891be019 | 1192 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1193 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1194 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1195 | newLISTOP(OP_HSLICE, 0, |
1196 | list($3), | |
a0d0e21e | 1197 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1198 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1199 | TOKEN_GETMAD($2,$$,'{'); |
1200 | TOKEN_GETMAD($4,$$,';'); | |
1201 | TOKEN_GETMAD($5,$$,'}'); | |
1202 | } | |
79072805 LW |
1203 | | THING %prec '(' |
1204 | { $$ = $1; } | |
891be019 | 1205 | | amper /* &foo; */ |
c07a80fd | 1206 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
417a992d | 1207 | | amper '(' ')' /* &foo() */ |
f05e27e5 DM |
1208 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1209 | TOKEN_GETMAD($2,$$,'('); | |
1210 | TOKEN_GETMAD($3,$$,')'); | |
1211 | } | |
417a992d | 1212 | | amper '(' expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1213 | { |
1214 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1215 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1216 | DO_MAD({ |
f05e27e5 DM |
1217 | OP* op = $$; |
1218 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1219 | op = (OP*)op->op_madprop->mad_val; | |
1220 | } | |
1221 | token_getmad($2,op,'('); | |
1222 | token_getmad($4,op,')'); | |
035e2bcc | 1223 | }) |
f05e27e5 | 1224 | } |
09b1cffe | 1225 | | NOAMP WORD optlistexpr /* foo(@args) */ |
a0d0e21e | 1226 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1227 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1228 | TOKEN_GETMAD($1,$$,'o'); |
1229 | } | |
891be019 | 1230 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1231 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1232 | PL_hints |= HINT_BLOCK_SCOPE; | |
1233 | TOKEN_GETMAD($1,$$,'o'); | |
1234 | } | |
a0d0e21e | 1235 | | LOOPEX term |
f05e27e5 DM |
1236 | { $$ = newLOOPEX(IVAL($1),$2); |
1237 | TOKEN_GETMAD($1,$$,'o'); | |
1238 | } | |
09b1cffe | 1239 | | NOTOP listexpr /* not $foo */ |
f05e27e5 DM |
1240 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1241 | TOKEN_GETMAD($1,$$,'o'); | |
1242 | } | |
891be019 | 1243 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1244 | { $$ = newOP(IVAL($1), 0); |
1245 | TOKEN_GETMAD($1,$$,'o'); | |
1246 | } | |
1247 | | UNIOP block /* eval { foo }* */ | |
1248 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1249 | TOKEN_GETMAD($1,$$,'o'); | |
1250 | } | |
891be019 | 1251 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1252 | { $$ = newUNOP(IVAL($1), 0, $2); |
1253 | TOKEN_GETMAD($1,$$,'o'); | |
1254 | } | |
d2fdf8fd RGS |
1255 | | REQUIRE /* require, $_ implied */ |
1256 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1257 | TOKEN_GETMAD($1,$$,'o'); | |
1258 | } | |
1259 | | REQUIRE term /* require Foo */ | |
1260 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1261 | TOKEN_GETMAD($1,$$,'o'); | |
1262 | } | |
3cd0a11a RGS |
1263 | | UNIOPSUB |
1264 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1265 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1266 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1267 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1268 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1269 | { $$ = newOP(IVAL($1), 0); |
1270 | TOKEN_GETMAD($1,$$,'o'); | |
1271 | } | |
ae986130 | 1272 | | FUNC0 '(' ')' |
f05e27e5 DM |
1273 | { $$ = newOP(IVAL($1), 0); |
1274 | TOKEN_GETMAD($1,$$,'o'); | |
1275 | TOKEN_GETMAD($2,$$,'('); | |
1276 | TOKEN_GETMAD($3,$$,')'); | |
1277 | } | |
7eb971ee FC |
1278 | | FUNC0OP /* Same as above, but op created in toke.c */ |
1279 | { $$ = $1; } | |
1280 | | FUNC0OP '(' ')' | |
1281 | { $$ = $1; | |
1282 | TOKEN_GETMAD($2,$$,'('); | |
1283 | TOKEN_GETMAD($3,$$,')'); | |
1284 | } | |
891be019 | 1285 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1286 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1287 | scalar($1)); } |
891be019 | 1288 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1289 | { $$ = (IVAL($1) == OP_NOT) |
1290 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1291 | : newOP(IVAL($1), OPf_SPECIAL); | |
1292 | ||
1293 | TOKEN_GETMAD($1,$$,'o'); | |
1294 | TOKEN_GETMAD($2,$$,'('); | |
1295 | TOKEN_GETMAD($3,$$,')'); | |
1296 | } | |
891be019 | 1297 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1298 | { $$ = newUNOP(IVAL($1), 0, $3); |
1299 | TOKEN_GETMAD($1,$$,'o'); | |
1300 | TOKEN_GETMAD($2,$$,'('); | |
1301 | TOKEN_GETMAD($4,$$,')'); | |
1302 | } | |
d63c20f2 DM |
1303 | | PMFUNC /* m//, s///, qr//, tr/// */ |
1304 | { | |
1305 | if ( $1->op_type != OP_TRANS | |
1306 | && $1->op_type != OP_TRANSR | |
1307 | && (((PMOP*)$1)->op_pmflags & PMf_HAS_CV)) | |
1308 | { | |
1309 | $<ival>$ = start_subparse(FALSE, CVf_ANON); | |
1310 | SAVEFREESV(PL_compcv); | |
1311 | } else | |
1312 | $<ival>$ = 0; | |
1313 | } | |
1314 | '(' listexpr ')' | |
1315 | { $$ = pmruntime($1, $4, 1, $<ival>2); | |
1316 | TOKEN_GETMAD($3,$$,'('); | |
1317 | TOKEN_GETMAD($5,$$,')'); | |
f05e27e5 | 1318 | } |
79072805 | 1319 | | WORD |
378cc40b | 1320 | | listop |
be25f609 | 1321 | | YADAYADA |
1322 | { | |
1323 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1324 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1325 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1326 | } |
88e1f1a2 | 1327 | | PLUGEXPR |
8d063cd8 LW |
1328 | ; |
1329 | ||
891be019 | 1330 | /* "my" declarations, with optional attributes */ |
09bef843 | 1331 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1332 | { $$ = my_attrs($2,$3); |
1333 | DO_MAD( | |
1334 | token_getmad($1,$$,'d'); | |
1335 | append_madprops($3->op_madprop, $$, 'a'); | |
1336 | $3->op_madprop = 0; | |
1337 | ) | |
1338 | } | |
09bef843 | 1339 | | MY myterm |
f05e27e5 DM |
1340 | { $$ = localize($2,IVAL($1)); |
1341 | TOKEN_GETMAD($1,$$,'d'); | |
1342 | } | |
09bef843 SB |
1343 | ; |
1344 | ||
891be019 | 1345 | /* Things that can be "my"'d */ |
09bef843 | 1346 | myterm : '(' expr ')' |
f05e27e5 DM |
1347 | { $$ = sawparens($2); |
1348 | TOKEN_GETMAD($1,$$,'('); | |
1349 | TOKEN_GETMAD($3,$$,')'); | |
1350 | } | |
09bef843 | 1351 | | '(' ')' |
f05e27e5 DM |
1352 | { $$ = sawparens(newNULLLIST()); |
1353 | TOKEN_GETMAD($1,$$,'('); | |
1354 | TOKEN_GETMAD($2,$$,')'); | |
1355 | } | |
09bef843 SB |
1356 | | scalar %prec '(' |
1357 | { $$ = $1; } | |
1358 | | hsh %prec '(' | |
1359 | { $$ = $1; } | |
1360 | | ary %prec '(' | |
1361 | { $$ = $1; } | |
1362 | ; | |
1363 | ||
891be019 | 1364 | /* Basic list expressions */ |
09b1cffe | 1365 | optlistexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1366 | { $$ = (OP*)NULL; } |
09b1cffe | 1367 | | listexpr %prec PREC_LOW |
a0d0e21e LW |
1368 | { $$ = $1; } |
1369 | ; | |
1370 | ||
09b1cffe | 1371 | optexpr: /* NULL */ |
bcabcc50 | 1372 | { $$ = (OP*)NULL; } |
79072805 LW |
1373 | | expr |
1374 | { $$ = $1; } | |
1375 | ; | |
1376 | ||
891be019 SC |
1377 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1378 | lexical */ | |
55497cff | 1379 | my_scalar: scalar |
12bd6ede | 1380 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1381 | ; |
1382 | ||
79072805 | 1383 | amper : '&' indirob |
f05e27e5 DM |
1384 | { $$ = newCVREF(IVAL($1),$2); |
1385 | TOKEN_GETMAD($1,$$,'&'); | |
1386 | } | |
a687059c LW |
1387 | ; |
1388 | ||
79072805 | 1389 | scalar : '$' indirob |
f05e27e5 DM |
1390 | { $$ = newSVREF($2); |
1391 | TOKEN_GETMAD($1,$$,'$'); | |
1392 | } | |
a687059c LW |
1393 | ; |
1394 | ||
79072805 | 1395 | ary : '@' indirob |
f05e27e5 DM |
1396 | { $$ = newAVREF($2); |
1397 | TOKEN_GETMAD($1,$$,'@'); | |
1398 | } | |
79072805 LW |
1399 | ; |
1400 | ||
1401 | hsh : '%' indirob | |
f05e27e5 DM |
1402 | { $$ = newHVREF($2); |
1403 | TOKEN_GETMAD($1,$$,'%'); | |
1404 | } | |
79072805 LW |
1405 | ; |
1406 | ||
1407 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1408 | { $$ = newAVREF($2); |
1409 | TOKEN_GETMAD($1,$$,'l'); | |
1410 | } | |
79072805 LW |
1411 | ; |
1412 | ||
1413 | star : '*' indirob | |
f05e27e5 DM |
1414 | { $$ = newGVREF(0,$2); |
1415 | TOKEN_GETMAD($1,$$,'*'); | |
1416 | } | |
79072805 LW |
1417 | ; |
1418 | ||
891be019 | 1419 | /* Indirect objects */ |
79072805 LW |
1420 | indirob : WORD |
1421 | { $$ = scalar($1); } | |
fad39ff1 | 1422 | | scalar %prec PREC_LOW |
f05e27e5 | 1423 | { $$ = scalar($1); } |
79072805 | 1424 | | block |
3ad73efd | 1425 | { $$ = op_scope($1); } |
79072805 | 1426 | |
93a17b20 LW |
1427 | | PRIVATEREF |
1428 | { $$ = $1; } | |
8d063cd8 | 1429 | ; |