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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
f05e27e5 | 3 | * Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall |
1129b882 | 4 | * Copyright (c) 2007, 2008 by Larry Wall and others |
a687059c | 5 | * |
9ef589d8 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
8d063cd8 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? | |
4ac71550 | 13 | * All that is gold does not glitter, not all those who wander are lost.' |
f05e27e5 | 14 | * |
4ac71550 TC |
15 | * [p.171 of _The Lord of the Rings_, I/x: "Strider"] |
16 | */ | |
17 | ||
18 | /* | |
f05e27e5 | 19 | * This file holds the grammar for the Perl language. If edited, you need |
166f8a29 DM |
20 | * to run regen_perly.pl, which re-creates the files perly.h, perly.tab |
21 | * and perly.act which are derived from this. | |
22 | * | |
f05e27e5 DM |
23 | * Note that these derived files are included and compiled twice; once |
24 | * from perly.c, and once from madly.c. The second time, a number of MAD | |
25 | * macros are defined, which compile in extra code that allows the parse | |
26 | * tree to be accurately dumped. In particular: | |
27 | * | |
28 | * MAD defined if compiling madly.c | |
29 | * DO_MAD(A) expands to A under madly.c, to null otherwise | |
30 | * IF_MAD(a,b) expands to A under madly.c, to B otherwise | |
31 | * TOKEN_GETMAD() expands to token_getmad() under madly.c, to null otherwise | |
32 | * TOKEN_FREE() similarly | |
33 | * OP_GETMAD() similarly | |
34 | * IVAL(i) expands to (i)->tk_lval.ival or (i) | |
35 | * PVAL(p) expands to (p)->tk_lval.pval or (p) | |
36 | * | |
166f8a29 DM |
37 | * The main job of of this grammar is to call the various newFOO() |
38 | * functions in op.c to build a syntax tree of OP structs. | |
61296642 | 39 | * It relies on the lexer in toke.c to do the tokenizing. |
29522234 DM |
40 | * |
41 | * Note: due to the way that the cleanup code works WRT to freeing ops on | |
42 | * the parse stack, it is dangerous to assign to the $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
28ac2b49 Z |
72 | %token <ival> GRAMPROG GRAMFULLSTMT |
73 | ||
123d08c9 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
f0fcb552 | 75 | |
ea25a9b2 | 76 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
4633a7c4 | 77 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 78 | %token <opval> PLUGEXPR PLUGSTMT |
f05e27e5 | 79 | %token <p_tkval> LABEL |
123d08c9 DM |
80 | %token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE |
81 | %token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR | |
82 | %token <i_tkval> GIVEN WHEN DEFAULT | |
be25f609 | 83 | %token <i_tkval> LOOPEX DOTDOT YADAYADA |
123d08c9 DM |
84 | %token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP |
85 | %token <i_tkval> RELOP EQOP MULOP ADDOP | |
86 | %token <i_tkval> DOLSHARP DO HASHBRACK NOAMP | |
87 | %token <i_tkval> LOCAL MY MYSUB REQUIRE | |
88 | %token <i_tkval> COLONATTR | |
f05e27e5 | 89 | |
ea25a9b2 Z |
90 | %type <i_tkval> lpar_or_qw |
91 | ||
28ac2b49 | 92 | %type <ival> grammar prog progstart remember mremember |
f05e27e5 DM |
93 | %type <ival> startsub startanonsub startformsub |
94 | /* FIXME for MAD - are these two ival? */ | |
95 | %type <ival> mydefsv mintro | |
96 | ||
28ac2b49 | 97 | %type <opval> fullstmt decl format subrout mysubrout package use peg |
4e4da3ac | 98 | %type <opval> block package_block mblock lineseq line loop cond else |
fad39ff1 | 99 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
a034e688 | 100 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr miexpr |
44a8e56a | 101 | %type <opval> listexpr listexprcom indirob listop method |
102 | %type <opval> formname subname proto subbody cont my_scalar | |
f05e27e5 | 103 | %type <opval> subattrlist myattrlist myattrterm myterm |
891be019 | 104 | %type <opval> termbinop termunop anonymous termdo |
0d863452 | 105 | %type <opval> switch case |
f05e27e5 | 106 | %type <p_tkval> label |
79072805 | 107 | |
123d08c9 | 108 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 SM |
109 | %nonassoc LOOPEX |
110 | ||
123d08c9 DM |
111 | %left <i_tkval> OROP DOROP |
112 | %left <i_tkval> ANDOP | |
113 | %right <i_tkval> NOTOP | |
36477c24 | 114 | %nonassoc LSTOP LSTOPSUB |
123d08c9 DM |
115 | %left <i_tkval> ',' |
116 | %right <i_tkval> ASSIGNOP | |
117 | %right <i_tkval> '?' ':' | |
be25f609 | 118 | %nonassoc DOTDOT YADAYADA |
123d08c9 DM |
119 | %left <i_tkval> OROR DORDOR |
120 | %left <i_tkval> ANDAND | |
121 | %left <i_tkval> BITOROP | |
122 | %left <i_tkval> BITANDOP | |
a687059c LW |
123 | %nonassoc EQOP |
124 | %nonassoc RELOP | |
36477c24 | 125 | %nonassoc UNIOP UNIOPSUB |
20515881 | 126 | %nonassoc REQUIRE |
123d08c9 | 127 | %left <i_tkval> SHIFTOP |
a687059c LW |
128 | %left ADDOP |
129 | %left MULOP | |
123d08c9 DM |
130 | %left <i_tkval> MATCHOP |
131 | %right <i_tkval> '!' '~' UMINUS REFGEN | |
132 | %right <i_tkval> POWOP | |
133 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC | |
134 | %left <i_tkval> ARROW | |
135 | %nonassoc <i_tkval> ')' | |
136 | %left <i_tkval> '(' | |
fad39ff1 | 137 | %left '[' '{' |
8d063cd8 | 138 | |
123d08c9 | 139 | %token <i_tkval> PEG |
7f46837f | 140 | |
8d063cd8 LW |
141 | %% /* RULES */ |
142 | ||
28ac2b49 Z |
143 | /* Top-level choice of what kind of thing yyparse was called to parse */ |
144 | grammar : GRAMPROG prog | |
145 | { $$ = $2; } | |
146 | | GRAMFULLSTMT fullstmt | |
147 | { | |
148 | PL_eval_root = $2; | |
149 | $$ = 0; | |
150 | yyunlex(); | |
151 | parser->yychar = YYEOF; | |
152 | } | |
153 | ; | |
154 | ||
891be019 | 155 | /* The whole program */ |
ecb2f335 | 156 | prog : progstart |
ae986130 | 157 | /*CONTINUED*/ lineseq |
ecb2f335 | 158 | { $$ = $1; newPROG(block_end($1,$2)); } |
8d063cd8 LW |
159 | ; |
160 | ||
891be019 | 161 | /* An ordinary block */ |
a687059c | 162 | block : '{' remember lineseq '}' |
53a7735b DM |
163 | { if (PL_parser->copline > (line_t)IVAL($1)) |
164 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
165 | $$ = block_end($2, $3); |
166 | TOKEN_GETMAD($1,$$,'{'); | |
167 | TOKEN_GETMAD($4,$$,'}'); | |
168 | } | |
a0d0e21e LW |
169 | ; |
170 | ||
55497cff | 171 | remember: /* NULL */ /* start a full lexical scope */ |
172 | { $$ = block_start(TRUE); } | |
173 | ; | |
174 | ||
0d863452 | 175 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 | 176 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 RH |
177 | ; |
178 | ||
ecb2f335 NIS |
179 | progstart: |
180 | { | |
53a7735b | 181 | PL_parser->expect = XSTATE; $$ = block_start(TRUE); |
ecb2f335 NIS |
182 | } |
183 | ; | |
184 | ||
185 | ||
bbce6d69 | 186 | mblock : '{' mremember lineseq '}' |
53a7735b DM |
187 | { if (PL_parser->copline > (line_t)IVAL($1)) |
188 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
189 | $$ = block_end($2, $3); |
190 | TOKEN_GETMAD($1,$$,'{'); | |
191 | TOKEN_GETMAD($4,$$,'}'); | |
192 | } | |
55497cff | 193 | ; |
194 | ||
195 | mremember: /* NULL */ /* start a partial lexical scope */ | |
196 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
197 | ; |
198 | ||
891be019 | 199 | /* A collection of "lines" in the program */ |
8d063cd8 | 200 | lineseq : /* NULL */ |
bcabcc50 | 201 | { $$ = (OP*)NULL; } |
79072805 | 202 | | lineseq decl |
f05e27e5 DM |
203 | { |
204 | $$ = IF_MAD( | |
205 | append_list(OP_LINESEQ, | |
206 | (LISTOP*)$1, (LISTOP*)$2), | |
207 | $1); | |
208 | } | |
503de470 DM |
209 | | lineseq line |
210 | { $$ = append_list(OP_LINESEQ, | |
211 | (LISTOP*)$1, (LISTOP*)$2); | |
3280af22 | 212 | PL_pad_reset_pending = TRUE; |
503de470 DM |
213 | if ($1 && $2) |
214 | PL_hints |= HINT_BLOCK_SCOPE; | |
215 | } | |
8d063cd8 LW |
216 | ; |
217 | ||
28ac2b49 Z |
218 | /* A statement, or "line", in the program */ |
219 | fullstmt: decl | |
220 | { $$ = $1; } | |
221 | | line | |
222 | { | |
223 | PL_pad_reset_pending = TRUE; | |
224 | $$ = $1; | |
225 | } | |
226 | ; | |
227 | ||
228 | /* A non-declaration statement */ | |
79072805 | 229 | line : label cond |
f05e27e5 DM |
230 | { $$ = newSTATEOP(0, PVAL($1), $2); |
231 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } | |
8d063cd8 | 232 | | loop /* loops add their own labels */ |
0d863452 RH |
233 | | switch /* ... and so do switches */ |
234 | { $$ = $1; } | |
235 | | label case | |
f05e27e5 | 236 | { $$ = newSTATEOP(0, PVAL($1), $2); } |
8d063cd8 | 237 | | label ';' |
f05e27e5 DM |
238 | { |
239 | if (PVAL($1)) { | |
240 | $$ = newSTATEOP(0, PVAL($1), newOP(OP_NULL, 0)); | |
241 | TOKEN_GETMAD($1,$$,'L'); | |
242 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first,';'); | |
243 | } | |
244 | else { | |
245 | $$ = IF_MAD( | |
246 | newOP(OP_NULL, 0), | |
bcabcc50 | 247 | (OP*)NULL); |
53a7735b | 248 | PL_parser->copline = NOLINE; |
f05e27e5 DM |
249 | TOKEN_FREE($1); |
250 | TOKEN_GETMAD($2,$$,';'); | |
251 | } | |
53a7735b | 252 | PL_parser->expect = XSTATE; |
f05e27e5 | 253 | } |
8d063cd8 | 254 | | label sideff ';' |
f05e27e5 DM |
255 | { |
256 | $$ = newSTATEOP(0, PVAL($1), $2); | |
53a7735b | 257 | PL_parser->expect = XSTATE; |
035e2bcc | 258 | DO_MAD({ |
f05e27e5 DM |
259 | /* sideff might already have a nexstate */ |
260 | OP* op = ((LISTOP*)$$)->op_first; | |
261 | if (op) { | |
262 | while (op->op_sibling && | |
263 | op->op_sibling->op_type == OP_NEXTSTATE) | |
264 | op = op->op_sibling; | |
265 | token_getmad($1,op,'L'); | |
266 | token_getmad($3,op,';'); | |
267 | } | |
035e2bcc | 268 | }) |
f05e27e5 | 269 | } |
4e4da3ac Z |
270 | | package_block |
271 | { $$ = newSTATEOP(0, NULL, | |
272 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
273 | NOLINE, (OP*)NULL, $1, | |
702646f2 | 274 | (OP*)NULL, 0)); } |
88e1f1a2 JV |
275 | | label PLUGSTMT |
276 | { $$ = newSTATEOP(0, PVAL($1), $2); } | |
8d063cd8 LW |
277 | ; |
278 | ||
891be019 | 279 | /* An expression which may have a side-effect */ |
a687059c | 280 | sideff : error |
bcabcc50 | 281 | { $$ = (OP*)NULL; } |
a687059c | 282 | | expr |
79072805 | 283 | { $$ = $1; } |
a687059c | 284 | | expr IF expr |
f05e27e5 DM |
285 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
286 | TOKEN_GETMAD($2,$$,'i'); | |
287 | } | |
a687059c | 288 | | expr UNLESS expr |
f05e27e5 DM |
289 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
290 | TOKEN_GETMAD($2,$$,'i'); | |
291 | } | |
a687059c | 292 | | expr WHILE expr |
f05e27e5 DM |
293 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
294 | TOKEN_GETMAD($2,$$,'w'); | |
295 | } | |
55497cff | 296 | | expr UNTIL iexpr |
f05e27e5 DM |
297 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
298 | TOKEN_GETMAD($2,$$,'w'); | |
299 | } | |
ecca16b0 | 300 | | expr FOR expr |
1a9a51d4 | 301 | { $$ = newFOROP(0, NULL, (line_t)IVAL($2), |
bcabcc50 | 302 | (OP*)NULL, $3, $1, (OP*)NULL); |
f05e27e5 DM |
303 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first->op_sibling,'w'); |
304 | } | |
f20dcd76 VP |
305 | | expr WHEN expr |
306 | { $$ = newWHENOP($3, scope($1)); } | |
79072805 LW |
307 | ; |
308 | ||
891be019 | 309 | /* else and elsif blocks */ |
79072805 | 310 | else : /* NULL */ |
bcabcc50 | 311 | { $$ = (OP*)NULL; } |
55497cff | 312 | | ELSE mblock |
f05e27e5 DM |
313 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); |
314 | TOKEN_GETMAD($1,$$,'o'); | |
315 | } | |
ea25a9b2 | 316 | | ELSIF lpar_or_qw mexpr ')' mblock else |
53a7735b | 317 | { PL_parser->copline = (line_t)IVAL($1); |
f6f3a1fe | 318 | $$ = newCONDOP(0, newSTATEOP(OPf_SPECIAL,NULL,$3), scope($5), $6); |
f05e27e5 DM |
319 | PL_hints |= HINT_BLOCK_SCOPE; |
320 | TOKEN_GETMAD($1,$$,'I'); | |
321 | TOKEN_GETMAD($2,$$,'('); | |
322 | TOKEN_GETMAD($4,$$,')'); | |
323 | } | |
79072805 LW |
324 | ; |
325 | ||
891be019 | 326 | /* Real conditional expressions */ |
ea25a9b2 | 327 | cond : IF lpar_or_qw remember mexpr ')' mblock else |
53a7735b | 328 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 329 | $$ = block_end($3, |
f05e27e5 DM |
330 | newCONDOP(0, $4, scope($6), $7)); |
331 | TOKEN_GETMAD($1,$$,'I'); | |
332 | TOKEN_GETMAD($2,$$,'('); | |
333 | TOKEN_GETMAD($5,$$,')'); | |
334 | } | |
ea25a9b2 | 335 | | UNLESS lpar_or_qw remember miexpr ')' mblock else |
53a7735b | 336 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 337 | $$ = block_end($3, |
f05e27e5 DM |
338 | newCONDOP(0, $4, scope($6), $7)); |
339 | TOKEN_GETMAD($1,$$,'I'); | |
340 | TOKEN_GETMAD($2,$$,'('); | |
341 | TOKEN_GETMAD($5,$$,')'); | |
342 | } | |
79072805 LW |
343 | ; |
344 | ||
0d863452 | 345 | /* Cases for a switch statement */ |
ea25a9b2 | 346 | case : WHEN lpar_or_qw remember mexpr ')' mblock |
0d863452 RH |
347 | { $$ = block_end($3, |
348 | newWHENOP($4, scope($6))); } | |
349 | | DEFAULT block | |
350 | { $$ = newWHENOP(0, scope($2)); } | |
351 | ; | |
352 | ||
891be019 | 353 | /* Continue blocks */ |
79072805 | 354 | cont : /* NULL */ |
bcabcc50 | 355 | { $$ = (OP*)NULL; } |
79072805 | 356 | | CONTINUE block |
f05e27e5 DM |
357 | { $$ = scope($2); |
358 | TOKEN_GETMAD($1,$$,'o'); | |
359 | } | |
79072805 LW |
360 | ; |
361 | ||
891be019 | 362 | /* Loops: while, until, for, and a bare block */ |
ea25a9b2 | 363 | loop : label WHILE lpar_or_qw remember texpr ')' mintro mblock cont |
f05e27e5 | 364 | { OP *innerop; |
5ca68648 | 365 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 | 366 | $$ = block_end($4, |
f05e27e5 | 367 | newSTATEOP(0, PVAL($1), |
bcabcc50 | 368 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 DM |
369 | IVAL($2), $5, $8, $9, $7))); |
370 | TOKEN_GETMAD($1,innerop,'L'); | |
371 | TOKEN_GETMAD($2,innerop,'W'); | |
372 | TOKEN_GETMAD($3,innerop,'('); | |
373 | TOKEN_GETMAD($6,innerop,')'); | |
374 | } | |
375 | ||
ea25a9b2 | 376 | | label UNTIL lpar_or_qw remember iexpr ')' mintro mblock cont |
f05e27e5 | 377 | { OP *innerop; |
5ca68648 | 378 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 | 379 | $$ = block_end($4, |
f05e27e5 | 380 | newSTATEOP(0, PVAL($1), |
bcabcc50 | 381 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 DM |
382 | IVAL($2), $5, $8, $9, $7))); |
383 | TOKEN_GETMAD($1,innerop,'L'); | |
384 | TOKEN_GETMAD($2,innerop,'W'); | |
385 | TOKEN_GETMAD($3,innerop,'('); | |
386 | TOKEN_GETMAD($6,innerop,')'); | |
387 | } | |
ea25a9b2 | 388 | | label FOR MY remember my_scalar lpar_or_qw mexpr ')' mblock cont |
f05e27e5 DM |
389 | { OP *innerop; |
390 | $$ = block_end($4, | |
391 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
392 | $5, $7, $9, $10)); | |
393 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
394 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
395 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'d'); | |
396 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
397 | TOKEN_GETMAD($8,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
398 | } | |
ea25a9b2 | 399 | | label FOR scalar lpar_or_qw remember mexpr ')' mblock cont |
f05e27e5 DM |
400 | { OP *innerop; |
401 | $$ = block_end($5, | |
402 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
403 | mod($3, OP_ENTERLOOP), $6, $8, $9)); | |
404 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
405 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
406 | TOKEN_GETMAD($4,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
407 | TOKEN_GETMAD($7,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
408 | } | |
ea25a9b2 | 409 | | label FOR lpar_or_qw remember mexpr ')' mblock cont |
f05e27e5 DM |
410 | { OP *innerop; |
411 | $$ = block_end($4, | |
412 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
bcabcc50 | 413 | (OP*)NULL, $5, $7, $8)); |
f05e27e5 DM |
414 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); |
415 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
416 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
417 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
418 | } | |
ea25a9b2 | 419 | | label FOR lpar_or_qw remember mnexpr ';' texpr ';' mintro mnexpr ')' |
a034e688 | 420 | mblock |
8d063cd8 | 421 | /* basically fake up an initialize-while lineseq */ |
36c66720 | 422 | { OP *forop; |
53a7735b | 423 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 424 | forop = newSTATEOP(0, PVAL($1), |
bcabcc50 | 425 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 | 426 | IVAL($2), scalar($7), |
a034e688 | 427 | $12, $10, $9)); |
f05e27e5 | 428 | #ifdef MAD |
f05e27e5 DM |
429 | forop = newUNOP(OP_NULL, 0, append_elem(OP_LINESEQ, |
430 | newSTATEOP(0, | |
63031daf | 431 | CopLABEL_alloc(($1)->tk_lval.pval), |
700f8fa5 | 432 | ($5 ? $5 : newOP(OP_NULL, 0)) ), |
f05e27e5 DM |
433 | forop)); |
434 | ||
435 | token_getmad($2,forop,'3'); | |
436 | token_getmad($3,forop,'('); | |
437 | token_getmad($6,forop,'1'); | |
438 | token_getmad($8,forop,'2'); | |
439 | token_getmad($11,forop,')'); | |
440 | token_getmad($1,forop,'L'); | |
441 | #else | |
36c66720 RH |
442 | if ($5) { |
443 | forop = append_elem(OP_LINESEQ, | |
63031daf | 444 | newSTATEOP(0, CopLABEL_alloc($1), $5), |
36c66720 RH |
445 | forop); |
446 | } | |
447 | ||
f05e27e5 DM |
448 | |
449 | #endif | |
36c66720 | 450 | $$ = block_end($4, forop); } |
79072805 | 451 | | label block cont /* a block is a loop that happens once */ |
f05e27e5 | 452 | { $$ = newSTATEOP(0, PVAL($1), |
bcabcc50 NC |
453 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
454 | NOLINE, (OP*)NULL, $2, $3, 0)); | |
f05e27e5 | 455 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } |
8d063cd8 LW |
456 | ; |
457 | ||
0d863452 | 458 | /* Switch blocks */ |
ea25a9b2 | 459 | switch : label GIVEN lpar_or_qw remember mydefsv mexpr ')' mblock |
5ca68648 | 460 | { PL_parser->copline = (line_t) IVAL($2); |
0d863452 | 461 | $$ = block_end($4, |
f05e27e5 | 462 | newSTATEOP(0, PVAL($1), |
0d863452 RH |
463 | newGIVENOP($6, scope($8), |
464 | (PADOFFSET) $5) )); } | |
465 | ; | |
466 | ||
a034e688 DM |
467 | /* determine whether there are any new my declarations */ |
468 | mintro : /* NULL */ | |
469 | { $$ = (PL_min_intro_pending && | |
470 | PL_max_intro_pending >= PL_min_intro_pending); | |
471 | intro_my(); } | |
472 | ||
891be019 | 473 | /* Normal expression */ |
8d063cd8 | 474 | nexpr : /* NULL */ |
bcabcc50 | 475 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
476 | | sideff |
477 | ; | |
478 | ||
891be019 | 479 | /* Boolean expression */ |
8d063cd8 | 480 | texpr : /* NULL means true */ |
f05e27e5 DM |
481 | { YYSTYPE tmplval; |
482 | (void)scan_num("1", &tmplval); | |
483 | $$ = tmplval.opval; } | |
8d063cd8 LW |
484 | | expr |
485 | ; | |
486 | ||
891be019 | 487 | /* Inverted boolean expression */ |
55497cff | 488 | iexpr : expr |
489 | { $$ = invert(scalar($1)); } | |
490 | ; | |
491 | ||
891be019 | 492 | /* Expression with its own lexical scope */ |
55497cff | 493 | mexpr : expr |
bbce6d69 | 494 | { $$ = $1; intro_my(); } |
495 | ; | |
496 | ||
497 | mnexpr : nexpr | |
498 | { $$ = $1; intro_my(); } | |
55497cff | 499 | ; |
500 | ||
55497cff | 501 | miexpr : iexpr |
bbce6d69 | 502 | { $$ = $1; intro_my(); } |
55497cff | 503 | ; |
504 | ||
891be019 | 505 | /* Optional "MAIN:"-style loop labels */ |
8d063cd8 | 506 | label : /* empty */ |
f05e27e5 DM |
507 | { |
508 | #ifdef MAD | |
509 | YYSTYPE tmplval; | |
1a9a51d4 | 510 | tmplval.pval = NULL; |
f05e27e5 DM |
511 | $$ = newTOKEN(OP_NULL, tmplval, 0); |
512 | #else | |
1a9a51d4 | 513 | $$ = NULL; |
f05e27e5 DM |
514 | #endif |
515 | } | |
32c2e4fb | 516 | | LABEL |
8d063cd8 LW |
517 | ; |
518 | ||
f05e27e5 | 519 | /* Some kind of declaration - just hang on peg in the parse tree */ |
8d063cd8 | 520 | decl : format |
f05e27e5 | 521 | { $$ = $1; } |
8d063cd8 | 522 | | subrout |
f05e27e5 | 523 | { $$ = $1; } |
09bef843 | 524 | | mysubrout |
f05e27e5 | 525 | { $$ = $1; } |
a687059c | 526 | | package |
f05e27e5 | 527 | { $$ = $1; } |
a0d0e21e | 528 | | use |
f05e27e5 DM |
529 | { $$ = $1; } |
530 | ||
531 | /* these two are only used by MAD */ | |
532 | ||
533 | | peg | |
534 | { $$ = $1; } | |
535 | ; | |
536 | ||
537 | peg : PEG | |
538 | { $$ = newOP(OP_NULL,0); | |
539 | TOKEN_GETMAD($1,$$,'p'); | |
540 | } | |
8d063cd8 LW |
541 | ; |
542 | ||
718a7425 | 543 | format : FORMAT startformsub formname block |
421f30ed Z |
544 | { |
545 | CV *fmtcv = PL_compcv; | |
546 | SvREFCNT_inc_simple_void(PL_compcv); | |
f05e27e5 | 547 | #ifdef MAD |
718a7425 | 548 | $$ = newFORM($2, $3, $4); |
f05e27e5 DM |
549 | prepend_madprops($1->tk_mad, $$, 'F'); |
550 | $1->tk_mad = 0; | |
551 | token_free($1); | |
552 | #else | |
718a7425 | 553 | newFORM($2, $3, $4); |
bcabcc50 | 554 | $$ = (OP*)NULL; |
f05e27e5 | 555 | #endif |
421f30ed Z |
556 | if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) { |
557 | SvREFCNT_inc_simple_void(fmtcv); | |
558 | pad_add_anon((SV*)fmtcv, OP_NULL); | |
559 | } | |
f05e27e5 | 560 | } |
44a8e56a | 561 | ; |
562 | ||
563 | formname: WORD { $$ = $1; } | |
bcabcc50 | 564 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
565 | ; |
566 | ||
891be019 | 567 | /* Unimplemented "my sub foo { }" */ |
718a7425 | 568 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
5a5094bd | 569 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 570 | #ifdef MAD |
718a7425 | 571 | $$ = newMYSUB($2, $3, $4, $5, $6); |
f05e27e5 DM |
572 | token_getmad($1,$$,'d'); |
573 | #else | |
718a7425 | 574 | newMYSUB($2, $3, $4, $5, $6); |
bcabcc50 | 575 | $$ = (OP*)NULL; |
f05e27e5 DM |
576 | #endif |
577 | } | |
09bef843 SB |
578 | ; |
579 | ||
891be019 | 580 | /* Subroutine definition */ |
718a7425 | 581 | subrout : SUB startsub subname proto subattrlist subbody |
5a5094bd | 582 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 583 | #ifdef MAD |
035e2bcc DM |
584 | { |
585 | OP* o = newSVOP(OP_ANONCODE, 0, | |
586 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
587 | $$ = newOP(OP_NULL,0); | |
588 | op_getmad(o,$$,'&'); | |
589 | op_getmad($3,$$,'n'); | |
590 | op_getmad($4,$$,'s'); | |
591 | op_getmad($5,$$,'a'); | |
592 | token_getmad($1,$$,'d'); | |
593 | append_madprops($6->op_madprop, $$, 0); | |
594 | $6->op_madprop = 0; | |
595 | } | |
f05e27e5 | 596 | #else |
718a7425 | 597 | newATTRSUB($2, $3, $4, $5, $6); |
bcabcc50 | 598 | $$ = (OP*)NULL; |
f05e27e5 DM |
599 | #endif |
600 | } | |
28757baa | 601 | ; |
602 | ||
fa83b5b6 | 603 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
604 | { $$ = start_subparse(FALSE, 0); |
605 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 606 | |
28757baa | 607 | ; |
608 | ||
609 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
610 | { $$ = start_subparse(FALSE, CVf_ANON); |
611 | SAVEFREESV(PL_compcv); } | |
28757baa | 612 | ; |
613 | ||
44a8e56a | 614 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
615 | { $$ = start_subparse(TRUE, 0); |
616 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 617 | ; |
618 | ||
891be019 | 619 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 620 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 621 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
622 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
623 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 624 | CvSPECIAL_on(PL_compcv); |
28757baa | 625 | $$ = $1; } |
a0d0e21e LW |
626 | ; |
627 | ||
891be019 | 628 | /* Subroutine prototype */ |
4633a7c4 | 629 | proto : /* NULL */ |
bcabcc50 | 630 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
631 | | THING |
632 | ; | |
28757baa | 633 | |
891be019 | 634 | /* Optional list of subroutine attributes */ |
09bef843 | 635 | subattrlist: /* NULL */ |
bcabcc50 | 636 | { $$ = (OP*)NULL; } |
09bef843 | 637 | | COLONATTR THING |
f05e27e5 DM |
638 | { $$ = $2; |
639 | TOKEN_GETMAD($1,$$,':'); | |
640 | } | |
09bef843 | 641 | | COLONATTR |
f05e27e5 DM |
642 | { $$ = IF_MAD( |
643 | newOP(OP_NULL, 0), | |
bcabcc50 | 644 | (OP*)NULL |
f05e27e5 DM |
645 | ); |
646 | TOKEN_GETMAD($1,$$,':'); | |
647 | } | |
09bef843 SB |
648 | ; |
649 | ||
891be019 | 650 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 651 | myattrlist: COLONATTR THING |
f05e27e5 DM |
652 | { $$ = $2; |
653 | TOKEN_GETMAD($1,$$,':'); | |
654 | } | |
09bef843 | 655 | | COLONATTR |
f05e27e5 DM |
656 | { $$ = IF_MAD( |
657 | newOP(OP_NULL, 0), | |
bcabcc50 | 658 | (OP*)NULL |
f05e27e5 DM |
659 | ); |
660 | TOKEN_GETMAD($1,$$,':'); | |
661 | } | |
09bef843 SB |
662 | ; |
663 | ||
891be019 | 664 | /* Subroutine body - either null or a block */ |
28757baa | 665 | subbody : block { $$ = $1; } |
f05e27e5 DM |
666 | | ';' { $$ = IF_MAD( |
667 | newOP(OP_NULL,0), | |
bcabcc50 | 668 | (OP*)NULL |
f05e27e5 | 669 | ); |
53a7735b | 670 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
671 | TOKEN_GETMAD($1,$$,';'); |
672 | } | |
8d063cd8 LW |
673 | ; |
674 | ||
6fa4d285 | 675 | package : PACKAGE WORD WORD ';' |
f05e27e5 DM |
676 | { |
677 | #ifdef MAD | |
0f811330 RGS |
678 | $$ = package($3); |
679 | token_getmad($1,$$,'o'); | |
680 | if ($2) | |
681 | package_version($2); | |
682 | token_getmad($4,$$,';'); | |
f05e27e5 | 683 | #else |
6fa4d285 | 684 | package($3); |
0f811330 RGS |
685 | if ($2) |
686 | package_version($2); | |
bcabcc50 | 687 | $$ = (OP*)NULL; |
0f811330 | 688 | #endif |
f05e27e5 | 689 | } |
a687059c LW |
690 | ; |
691 | ||
4e4da3ac Z |
692 | package_block: PACKAGE WORD WORD '{' remember |
693 | { | |
af5050ac Z |
694 | int save_3_latefree = $3->op_latefree; |
695 | $3->op_latefree = 1; | |
4e4da3ac | 696 | package($3); |
af5050ac Z |
697 | $3->op_latefree = save_3_latefree; |
698 | if ($2) { | |
699 | int save_2_latefree = $2->op_latefree; | |
700 | $2->op_latefree = 1; | |
4e4da3ac | 701 | package_version($2); |
af5050ac Z |
702 | $2->op_latefree = save_2_latefree; |
703 | } | |
4e4da3ac Z |
704 | } |
705 | lineseq '}' | |
706 | { if (PL_parser->copline > (line_t)IVAL($4)) | |
707 | PL_parser->copline = (line_t)IVAL($4); | |
708 | $$ = block_end($5, $7); | |
709 | TOKEN_GETMAD($4,$$,'{'); | |
710 | TOKEN_GETMAD($8,$$,'}'); | |
af5050ac Z |
711 | op_free($3); |
712 | if ($2) | |
713 | op_free($2); | |
4e4da3ac Z |
714 | } |
715 | ; | |
716 | ||
718a7425 | 717 | use : USE startsub |
1aff0e91 | 718 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 719 | WORD WORD listexpr ';' |
5a5094bd | 720 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 721 | #ifdef MAD |
718a7425 | 722 | $$ = utilize(IVAL($1), $2, $4, $5, $6); |
f05e27e5 | 723 | token_getmad($1,$$,'o'); |
718a7425 | 724 | token_getmad($7,$$,';'); |
5486870f DM |
725 | if (PL_parser->rsfp_filters && |
726 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
a22f28a4 | 727 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); |
f05e27e5 | 728 | #else |
718a7425 | 729 | utilize(IVAL($1), $2, $4, $5, $6); |
bcabcc50 | 730 | $$ = (OP*)NULL; |
f05e27e5 DM |
731 | #endif |
732 | } | |
85e6fe83 LW |
733 | ; |
734 | ||
891be019 | 735 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 736 | expr : expr ANDOP expr |
f05e27e5 DM |
737 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
738 | TOKEN_GETMAD($2,$$,'o'); | |
739 | } | |
a0d0e21e | 740 | | expr OROP expr |
f05e27e5 DM |
741 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
742 | TOKEN_GETMAD($2,$$,'o'); | |
743 | } | |
c963b151 | 744 | | expr DOROP expr |
f05e27e5 DM |
745 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
746 | TOKEN_GETMAD($2,$$,'o'); | |
747 | } | |
fad39ff1 | 748 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
749 | ; |
750 | ||
891be019 | 751 | /* Expressions are a list of terms joined by commas */ |
a0d0e21e | 752 | argexpr : argexpr ',' |
f05e27e5 DM |
753 | { |
754 | #ifdef MAD | |
755 | OP* op = newNULLLIST(); | |
756 | token_getmad($2,op,','); | |
757 | $$ = append_elem(OP_LIST, $1, op); | |
758 | #else | |
759 | $$ = $1; | |
760 | #endif | |
761 | } | |
a0d0e21e | 762 | | argexpr ',' term |
f05e27e5 | 763 | { |
29522234 | 764 | OP* term = $3; |
f05e27e5 | 765 | DO_MAD( |
29522234 DM |
766 | term = newUNOP(OP_NULL, 0, term); |
767 | token_getmad($2,term,','); | |
f05e27e5 | 768 | ) |
29522234 | 769 | $$ = append_elem(OP_LIST, $1, term); |
f05e27e5 | 770 | } |
fad39ff1 | 771 | | term %prec PREC_LOW |
8d063cd8 LW |
772 | ; |
773 | ||
891be019 | 774 | /* List operators */ |
ad4673e5 | 775 | listop : LSTOP indirob argexpr /* map {...} @args or print $fh @args */ |
f05e27e5 DM |
776 | { $$ = convert(IVAL($1), OPf_STACKED, |
777 | prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); | |
778 | TOKEN_GETMAD($1,$$,'o'); | |
779 | } | |
891be019 | 780 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 DM |
781 | { $$ = convert(IVAL($1), OPf_STACKED, |
782 | prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); | |
783 | TOKEN_GETMAD($1,$$,'o'); | |
784 | TOKEN_GETMAD($2,$$,'('); | |
785 | TOKEN_GETMAD($5,$$,')'); | |
786 | } | |
ea25a9b2 | 787 | | term ARROW method lpar_or_qw listexprcom ')' /* $foo->bar(list) */ |
4633a7c4 | 788 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 789 | append_elem(OP_LIST, |
55497cff | 790 | prepend_elem(OP_LIST, scalar($1), $5), |
f05e27e5 DM |
791 | newUNOP(OP_METHOD, 0, $3))); |
792 | TOKEN_GETMAD($2,$$,'A'); | |
793 | TOKEN_GETMAD($4,$$,'('); | |
794 | TOKEN_GETMAD($6,$$,')'); | |
795 | } | |
891be019 | 796 | | term ARROW method /* $foo->bar */ |
b1524f17 SM |
797 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
798 | append_elem(OP_LIST, scalar($1), | |
f05e27e5 DM |
799 | newUNOP(OP_METHOD, 0, $3))); |
800 | TOKEN_GETMAD($2,$$,'A'); | |
801 | } | |
891be019 | 802 | | METHOD indirob listexpr /* new Class @args */ |
4633a7c4 | 803 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 804 | append_elem(OP_LIST, |
4633a7c4 | 805 | prepend_elem(OP_LIST, $2, $3), |
f05e27e5 DM |
806 | newUNOP(OP_METHOD, 0, $1))); |
807 | } | |
891be019 | 808 | | FUNCMETH indirob '(' listexprcom ')' /* method $object (@args) */ |
4633a7c4 | 809 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 810 | append_elem(OP_LIST, |
4633a7c4 | 811 | prepend_elem(OP_LIST, $2, $4), |
f05e27e5 DM |
812 | newUNOP(OP_METHOD, 0, $1))); |
813 | TOKEN_GETMAD($3,$$,'('); | |
814 | TOKEN_GETMAD($5,$$,')'); | |
815 | } | |
891be019 | 816 | | LSTOP listexpr /* print @args */ |
f05e27e5 DM |
817 | { $$ = convert(IVAL($1), 0, $2); |
818 | TOKEN_GETMAD($1,$$,'o'); | |
819 | } | |
891be019 | 820 | | FUNC '(' listexprcom ')' /* print (@args) */ |
f05e27e5 DM |
821 | { $$ = convert(IVAL($1), 0, $3); |
822 | TOKEN_GETMAD($1,$$,'o'); | |
823 | TOKEN_GETMAD($2,$$,'('); | |
824 | TOKEN_GETMAD($4,$$,')'); | |
825 | } | |
718a7425 | 826 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 827 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 828 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
891be019 | 829 | listexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 830 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 831 | append_elem(OP_LIST, |
29522234 | 832 | prepend_elem(OP_LIST, $<opval>4, $5), $1)); |
f05e27e5 | 833 | } |
a687059c LW |
834 | ; |
835 | ||
891be019 | 836 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
837 | method : METHOD |
838 | | scalar | |
839 | ; | |
840 | ||
891be019 SC |
841 | /* Some kind of subscripted expression */ |
842 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
843 | /* In this and all the hash accessors, ';' is | |
844 | * provided by the tokeniser */ | |
264e1af3 | 845 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 846 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
847 | TOKEN_GETMAD($2,$$,'{'); |
848 | TOKEN_GETMAD($4,$$,';'); | |
849 | TOKEN_GETMAD($5,$$,'}'); | |
850 | } | |
891be019 | 851 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
852 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
853 | TOKEN_GETMAD($2,$$,'['); | |
854 | TOKEN_GETMAD($4,$$,']'); | |
855 | } | |
891be019 | 856 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
857 | { $$ = newBINOP(OP_AELEM, 0, |
858 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
859 | scalar($4)); |
860 | TOKEN_GETMAD($2,$$,'a'); | |
861 | TOKEN_GETMAD($3,$$,'['); | |
862 | TOKEN_GETMAD($5,$$,']'); | |
863 | } | |
891be019 | 864 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
865 | { $$ = newBINOP(OP_AELEM, 0, |
866 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
867 | scalar($3)); |
868 | TOKEN_GETMAD($2,$$,'['); | |
869 | TOKEN_GETMAD($4,$$,']'); | |
870 | } | |
891be019 | 871 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 | 872 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 873 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
874 | TOKEN_GETMAD($2,$$,'{'); |
875 | TOKEN_GETMAD($4,$$,';'); | |
876 | TOKEN_GETMAD($5,$$,'}'); | |
877 | } | |
891be019 | 878 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
879 | { $$ = newBINOP(OP_HELEM, 0, |
880 | ref(newHVREF($1),OP_RV2HV), | |
881 | jmaybe($4)); | |
53a7735b | 882 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
883 | TOKEN_GETMAD($2,$$,'a'); |
884 | TOKEN_GETMAD($3,$$,'{'); | |
885 | TOKEN_GETMAD($5,$$,';'); | |
886 | TOKEN_GETMAD($6,$$,'}'); | |
887 | } | |
891be019 | 888 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
889 | { $$ = newBINOP(OP_HELEM, 0, |
890 | ref(newHVREF($1),OP_RV2HV), | |
891 | jmaybe($3)); | |
53a7735b | 892 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
893 | TOKEN_GETMAD($2,$$,'{'); |
894 | TOKEN_GETMAD($4,$$,';'); | |
895 | TOKEN_GETMAD($5,$$,'}'); | |
896 | } | |
891be019 | 897 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 898 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
899 | newCVREF(0, scalar($1))); |
900 | TOKEN_GETMAD($2,$$,'a'); | |
901 | TOKEN_GETMAD($3,$$,'('); | |
902 | TOKEN_GETMAD($4,$$,')'); | |
903 | } | |
891be019 | 904 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 SM |
905 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
906 | append_elem(OP_LIST, $4, | |
f05e27e5 DM |
907 | newCVREF(0, scalar($1)))); |
908 | TOKEN_GETMAD($2,$$,'a'); | |
909 | TOKEN_GETMAD($3,$$,'('); | |
910 | TOKEN_GETMAD($5,$$,')'); | |
911 | } | |
fad39ff1 | 912 | |
ea25a9b2 | 913 | | subscripted lpar_or_qw expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 SM |
914 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
915 | append_elem(OP_LIST, $3, | |
f05e27e5 DM |
916 | newCVREF(0, scalar($1)))); |
917 | TOKEN_GETMAD($2,$$,'('); | |
918 | TOKEN_GETMAD($4,$$,')'); | |
919 | } | |
ea25a9b2 | 920 | | subscripted lpar_or_qw ')' /* $foo->{bar}->() */ |
fad39ff1 | 921 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
922 | newCVREF(0, scalar($1))); |
923 | TOKEN_GETMAD($2,$$,'('); | |
924 | TOKEN_GETMAD($3,$$,')'); | |
925 | } | |
9a9798c2 | 926 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
927 | { $$ = newSLICEOP(0, $5, $2); |
928 | TOKEN_GETMAD($1,$$,'('); | |
929 | TOKEN_GETMAD($3,$$,')'); | |
930 | TOKEN_GETMAD($4,$$,'['); | |
931 | TOKEN_GETMAD($6,$$,']'); | |
932 | } | |
ea25a9b2 Z |
933 | | QWLIST '[' expr ']' /* list literal slice */ |
934 | { $$ = newSLICEOP(0, $3, $1); | |
935 | TOKEN_GETMAD($2,$$,'['); | |
936 | TOKEN_GETMAD($4,$$,']'); | |
937 | } | |
9a9798c2 | 938 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 939 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
940 | TOKEN_GETMAD($1,$$,'('); |
941 | TOKEN_GETMAD($2,$$,')'); | |
942 | TOKEN_GETMAD($3,$$,'['); | |
943 | TOKEN_GETMAD($5,$$,']'); | |
944 | } | |
891be019 | 945 | ; |
fad39ff1 | 946 | |
891be019 | 947 | /* Binary operators between terms */ |
f05e27e5 DM |
948 | termbinop: term ASSIGNOP term /* $x = $y */ |
949 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
950 | TOKEN_GETMAD($2,$$,'o'); | |
951 | } | |
891be019 | 952 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
953 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
954 | TOKEN_GETMAD($2,$$,'o'); | |
955 | } | |
891be019 | 956 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 957 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 958 | scalar($1); |
f05e27e5 DM |
959 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
960 | TOKEN_GETMAD($2,$$,'o'); | |
961 | } | |
891be019 | 962 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
963 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
964 | TOKEN_GETMAD($2,$$,'o'); | |
965 | } | |
891be019 | 966 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
967 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
968 | TOKEN_GETMAD($2,$$,'o'); | |
969 | } | |
891be019 | 970 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
971 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
972 | TOKEN_GETMAD($2,$$,'o'); | |
973 | } | |
891be019 | 974 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
975 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
976 | TOKEN_GETMAD($2,$$,'o'); | |
977 | } | |
891be019 | 978 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
979 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
980 | TOKEN_GETMAD($2,$$,'o'); | |
981 | } | |
891be019 | 982 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
983 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
984 | TOKEN_GETMAD($2,$$,'o'); | |
985 | } | |
891be019 | 986 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
987 | { |
988 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 989 | DO_MAD({ |
f05e27e5 DM |
990 | UNOP *op; |
991 | op = (UNOP*)$$; | |
992 | op = (UNOP*)op->op_first; /* get to flop */ | |
993 | op = (UNOP*)op->op_first; /* get to flip */ | |
994 | op = (UNOP*)op->op_first; /* get to range */ | |
995 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 996 | }) |
f05e27e5 | 997 | } |
891be019 | 998 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
999 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
1000 | TOKEN_GETMAD($2,$$,'o'); | |
1001 | } | |
891be019 | 1002 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
1003 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
1004 | TOKEN_GETMAD($2,$$,'o'); | |
1005 | } | |
c963b151 | 1006 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
1007 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
1008 | TOKEN_GETMAD($2,$$,'o'); | |
1009 | } | |
891be019 | 1010 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
1011 | { $$ = bind_match(IVAL($2), $1, $3); |
1012 | TOKEN_GETMAD($2, | |
1013 | ($$->op_type == OP_NOT | |
1014 | ? ((UNOP*)$$)->op_first : $$), | |
1015 | '~'); | |
1016 | } | |
891be019 | 1017 | ; |
8d063cd8 | 1018 | |
891be019 SC |
1019 | /* Unary operators and terms */ |
1020 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
1021 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
1022 | TOKEN_GETMAD($1,$$,'o'); | |
1023 | } | |
891be019 | 1024 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
1025 | { $$ = IF_MAD( |
1026 | newUNOP(OP_NULL, 0, $2), | |
1027 | $2 | |
1028 | ); | |
1029 | TOKEN_GETMAD($1,$$,'+'); | |
1030 | } | |
891be019 | 1031 | | '!' term /* !$x */ |
f05e27e5 DM |
1032 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1033 | TOKEN_GETMAD($1,$$,'o'); | |
1034 | } | |
891be019 | 1035 | | '~' term /* ~$x */ |
f05e27e5 DM |
1036 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1037 | TOKEN_GETMAD($1,$$,'o'); | |
1038 | } | |
891be019 | 1039 | | term POSTINC /* $x++ */ |
79072805 | 1040 | { $$ = newUNOP(OP_POSTINC, 0, |
f05e27e5 DM |
1041 | mod(scalar($1), OP_POSTINC)); |
1042 | TOKEN_GETMAD($2,$$,'o'); | |
1043 | } | |
891be019 | 1044 | | term POSTDEC /* $x-- */ |
79072805 | 1045 | { $$ = newUNOP(OP_POSTDEC, 0, |
f05e27e5 DM |
1046 | mod(scalar($1), OP_POSTDEC)); |
1047 | TOKEN_GETMAD($2,$$,'o'); | |
1048 | } | |
891be019 | 1049 | | PREINC term /* ++$x */ |
79072805 | 1050 | { $$ = newUNOP(OP_PREINC, 0, |
f05e27e5 DM |
1051 | mod(scalar($2), OP_PREINC)); |
1052 | TOKEN_GETMAD($1,$$,'o'); | |
1053 | } | |
891be019 | 1054 | | PREDEC term /* --$x */ |
79072805 | 1055 | { $$ = newUNOP(OP_PREDEC, 0, |
f05e27e5 DM |
1056 | mod(scalar($2), OP_PREDEC)); |
1057 | TOKEN_GETMAD($1,$$,'o'); | |
1058 | } | |
891be019 SC |
1059 | |
1060 | ; | |
1061 | ||
1062 | /* Constructors for anonymous data */ | |
1063 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1064 | { $$ = newANONLIST($2); |
1065 | TOKEN_GETMAD($1,$$,'['); | |
1066 | TOKEN_GETMAD($3,$$,']'); | |
1067 | } | |
891be019 | 1068 | | '[' ']' |
bcabcc50 | 1069 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1070 | TOKEN_GETMAD($1,$$,'['); |
1071 | TOKEN_GETMAD($2,$$,']'); | |
1072 | } | |
891be019 | 1073 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1074 | { $$ = newANONHASH($2); |
1075 | TOKEN_GETMAD($1,$$,'{'); | |
1076 | TOKEN_GETMAD($3,$$,';'); | |
1077 | TOKEN_GETMAD($4,$$,'}'); | |
1078 | } | |
891be019 | 1079 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1080 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1081 | TOKEN_GETMAD($1,$$,'{'); |
1082 | TOKEN_GETMAD($2,$$,';'); | |
1083 | TOKEN_GETMAD($3,$$,'}'); | |
1084 | } | |
718a7425 | 1085 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1086 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1087 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1088 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1089 | OP_GETMAD($3,$$,'s'); |
1090 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1091 | } |
891be019 SC |
1092 | |
1093 | ; | |
1094 | ||
1095 | /* Things called with "do" */ | |
1096 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1097 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1098 | TOKEN_GETMAD($1,$$,'o'); |
1099 | } | |
891be019 | 1100 | | DO block %prec '(' /* do { code */ |
f05e27e5 DM |
1101 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); |
1102 | TOKEN_GETMAD($1,$$,'D'); | |
1103 | } | |
ea25a9b2 | 1104 | | DO WORD lpar_or_qw ')' /* do somesub() */ |
891be019 SC |
1105 | { $$ = newUNOP(OP_ENTERSUB, |
1106 | OPf_SPECIAL|OPf_STACKED, | |
1107 | prepend_elem(OP_LIST, | |
1108 | scalar(newCVREF( | |
1109 | (OPpENTERSUB_AMPER<<8), | |
1110 | scalar($2) | |
bcabcc50 | 1111 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1112 | TOKEN_GETMAD($1,$$,'o'); |
1113 | TOKEN_GETMAD($3,$$,'('); | |
1114 | TOKEN_GETMAD($4,$$,')'); | |
1115 | } | |
ea25a9b2 | 1116 | | DO WORD lpar_or_qw expr ')' /* do somesub(@args) */ |
891be019 SC |
1117 | { $$ = newUNOP(OP_ENTERSUB, |
1118 | OPf_SPECIAL|OPf_STACKED, | |
1119 | append_elem(OP_LIST, | |
1120 | $4, | |
1121 | scalar(newCVREF( | |
1122 | (OPpENTERSUB_AMPER<<8), | |
1123 | scalar($2) | |
f05e27e5 DM |
1124 | )))); dep(); |
1125 | TOKEN_GETMAD($1,$$,'o'); | |
1126 | TOKEN_GETMAD($3,$$,'('); | |
1127 | TOKEN_GETMAD($5,$$,')'); | |
1128 | } | |
ea25a9b2 | 1129 | | DO scalar lpar_or_qw ')' /* do $subref () */ |
891be019 SC |
1130 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
1131 | prepend_elem(OP_LIST, | |
bcabcc50 | 1132 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1133 | TOKEN_GETMAD($1,$$,'o'); |
1134 | TOKEN_GETMAD($3,$$,'('); | |
1135 | TOKEN_GETMAD($4,$$,')'); | |
1136 | } | |
ea25a9b2 | 1137 | | DO scalar lpar_or_qw expr ')' /* do $subref (@args) */ |
891be019 SC |
1138 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
1139 | prepend_elem(OP_LIST, | |
1140 | $4, | |
f05e27e5 DM |
1141 | scalar(newCVREF(0,scalar($2))))); dep(); |
1142 | TOKEN_GETMAD($1,$$,'o'); | |
1143 | TOKEN_GETMAD($3,$$,'('); | |
1144 | TOKEN_GETMAD($5,$$,')'); | |
1145 | } | |
891be019 SC |
1146 | |
1147 | ; | |
1148 | ||
1149 | term : termbinop | |
1150 | | termunop | |
1151 | | anonymous | |
1152 | | termdo | |
e9bdcc27 | 1153 | | term '?' term ':' term |
f05e27e5 DM |
1154 | { $$ = newCONDOP(0, $1, $3, $5); |
1155 | TOKEN_GETMAD($2,$$,'?'); | |
1156 | TOKEN_GETMAD($4,$$,':'); | |
1157 | } | |
891be019 | 1158 | | REFGEN term /* \$x, \@y, \%z */ |
f05e27e5 DM |
1159 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); |
1160 | TOKEN_GETMAD($1,$$,'o'); | |
1161 | } | |
09bef843 SB |
1162 | | myattrterm %prec UNIOP |
1163 | { $$ = $1; } | |
1164 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1165 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1166 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1167 | } |
a0d0e21e | 1168 | | '(' expr ')' |
f05e27e5 DM |
1169 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1170 | TOKEN_GETMAD($1,$$,'('); | |
1171 | TOKEN_GETMAD($3,$$,')'); | |
1172 | } | |
ea25a9b2 Z |
1173 | | QWLIST |
1174 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1175 | | '(' ')' |
f05e27e5 DM |
1176 | { $$ = sawparens(newNULLLIST()); |
1177 | TOKEN_GETMAD($1,$$,'('); | |
1178 | TOKEN_GETMAD($2,$$,')'); | |
1179 | } | |
79072805 | 1180 | | scalar %prec '(' |
8d063cd8 | 1181 | { $$ = $1; } |
79072805 | 1182 | | star %prec '(' |
8d063cd8 | 1183 | { $$ = $1; } |
79072805 | 1184 | | hsh %prec '(' |
8d063cd8 | 1185 | { $$ = $1; } |
79072805 | 1186 | | ary %prec '(' |
8d063cd8 | 1187 | { $$ = $1; } |
891be019 | 1188 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1189 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1190 | | subscripted |
1191 | { $$ = $1; } | |
891be019 | 1192 | | ary '[' expr ']' /* array slice */ |
79072805 LW |
1193 | { $$ = prepend_elem(OP_ASLICE, |
1194 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
1195 | newLISTOP(OP_ASLICE, 0, |
1196 | list($3), | |
f05e27e5 DM |
1197 | ref($1, OP_ASLICE))); |
1198 | TOKEN_GETMAD($2,$$,'['); | |
1199 | TOKEN_GETMAD($4,$$,']'); | |
1200 | } | |
891be019 | 1201 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
79072805 LW |
1202 | { $$ = prepend_elem(OP_HSLICE, |
1203 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
1204 | newLISTOP(OP_HSLICE, 0, |
1205 | list($3), | |
a0d0e21e | 1206 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1207 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1208 | TOKEN_GETMAD($2,$$,'{'); |
1209 | TOKEN_GETMAD($4,$$,';'); | |
1210 | TOKEN_GETMAD($5,$$,'}'); | |
1211 | } | |
79072805 LW |
1212 | | THING %prec '(' |
1213 | { $$ = $1; } | |
891be019 | 1214 | | amper /* &foo; */ |
c07a80fd | 1215 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ea25a9b2 | 1216 | | amper lpar_or_qw ')' /* &foo() */ |
f05e27e5 DM |
1217 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1218 | TOKEN_GETMAD($2,$$,'('); | |
1219 | TOKEN_GETMAD($3,$$,')'); | |
1220 | } | |
ea25a9b2 | 1221 | | amper lpar_or_qw expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1222 | { |
1223 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
1224 | append_elem(OP_LIST, $3, scalar($1))); | |
035e2bcc | 1225 | DO_MAD({ |
f05e27e5 DM |
1226 | OP* op = $$; |
1227 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1228 | op = (OP*)op->op_madprop->mad_val; | |
1229 | } | |
1230 | token_getmad($2,op,'('); | |
1231 | token_getmad($4,op,')'); | |
035e2bcc | 1232 | }) |
f05e27e5 | 1233 | } |
891be019 | 1234 | | NOAMP WORD listexpr /* foo(@args) */ |
a0d0e21e | 1235 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
1236 | append_elem(OP_LIST, $3, scalar($2))); |
1237 | TOKEN_GETMAD($1,$$,'o'); | |
1238 | } | |
891be019 | 1239 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1240 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1241 | PL_hints |= HINT_BLOCK_SCOPE; | |
1242 | TOKEN_GETMAD($1,$$,'o'); | |
1243 | } | |
a0d0e21e | 1244 | | LOOPEX term |
f05e27e5 DM |
1245 | { $$ = newLOOPEX(IVAL($1),$2); |
1246 | TOKEN_GETMAD($1,$$,'o'); | |
1247 | } | |
891be019 | 1248 | | NOTOP argexpr /* not $foo */ |
f05e27e5 DM |
1249 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1250 | TOKEN_GETMAD($1,$$,'o'); | |
1251 | } | |
891be019 | 1252 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1253 | { $$ = newOP(IVAL($1), 0); |
1254 | TOKEN_GETMAD($1,$$,'o'); | |
1255 | } | |
1256 | | UNIOP block /* eval { foo }* */ | |
1257 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1258 | TOKEN_GETMAD($1,$$,'o'); | |
1259 | } | |
891be019 | 1260 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1261 | { $$ = newUNOP(IVAL($1), 0, $2); |
1262 | TOKEN_GETMAD($1,$$,'o'); | |
1263 | } | |
d2fdf8fd RGS |
1264 | | REQUIRE /* require, $_ implied */ |
1265 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1266 | TOKEN_GETMAD($1,$$,'o'); | |
1267 | } | |
1268 | | REQUIRE term /* require Foo */ | |
1269 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1270 | TOKEN_GETMAD($1,$$,'o'); | |
1271 | } | |
3cd0a11a RGS |
1272 | | UNIOPSUB |
1273 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1274 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 LW |
1275 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
1276 | append_elem(OP_LIST, $2, scalar($1))); } | |
891be019 | 1277 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1278 | { $$ = newOP(IVAL($1), 0); |
1279 | TOKEN_GETMAD($1,$$,'o'); | |
1280 | } | |
ae986130 | 1281 | | FUNC0 '(' ')' |
f05e27e5 DM |
1282 | { $$ = newOP(IVAL($1), 0); |
1283 | TOKEN_GETMAD($1,$$,'o'); | |
1284 | TOKEN_GETMAD($2,$$,'('); | |
1285 | TOKEN_GETMAD($3,$$,')'); | |
1286 | } | |
891be019 | 1287 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1288 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1289 | scalar($1)); } |
891be019 | 1290 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1291 | { $$ = (IVAL($1) == OP_NOT) |
1292 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1293 | : newOP(IVAL($1), OPf_SPECIAL); | |
1294 | ||
1295 | TOKEN_GETMAD($1,$$,'o'); | |
1296 | TOKEN_GETMAD($2,$$,'('); | |
1297 | TOKEN_GETMAD($3,$$,')'); | |
1298 | } | |
891be019 | 1299 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1300 | { $$ = newUNOP(IVAL($1), 0, $3); |
1301 | TOKEN_GETMAD($1,$$,'o'); | |
1302 | TOKEN_GETMAD($2,$$,'('); | |
1303 | TOKEN_GETMAD($4,$$,')'); | |
1304 | } | |
1305 | | PMFUNC '(' argexpr ')' /* m//, s///, tr/// */ | |
1306 | { $$ = pmruntime($1, $3, 1); | |
1307 | TOKEN_GETMAD($2,$$,'('); | |
1308 | TOKEN_GETMAD($4,$$,')'); | |
1309 | } | |
79072805 | 1310 | | WORD |
378cc40b | 1311 | | listop |
be25f609 | 1312 | | YADAYADA |
1313 | { | |
1314 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1315 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1316 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1317 | } |
88e1f1a2 | 1318 | | PLUGEXPR |
8d063cd8 LW |
1319 | ; |
1320 | ||
891be019 | 1321 | /* "my" declarations, with optional attributes */ |
09bef843 | 1322 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1323 | { $$ = my_attrs($2,$3); |
1324 | DO_MAD( | |
1325 | token_getmad($1,$$,'d'); | |
1326 | append_madprops($3->op_madprop, $$, 'a'); | |
1327 | $3->op_madprop = 0; | |
1328 | ) | |
1329 | } | |
09bef843 | 1330 | | MY myterm |
f05e27e5 DM |
1331 | { $$ = localize($2,IVAL($1)); |
1332 | TOKEN_GETMAD($1,$$,'d'); | |
1333 | } | |
09bef843 SB |
1334 | ; |
1335 | ||
891be019 | 1336 | /* Things that can be "my"'d */ |
09bef843 | 1337 | myterm : '(' expr ')' |
f05e27e5 DM |
1338 | { $$ = sawparens($2); |
1339 | TOKEN_GETMAD($1,$$,'('); | |
1340 | TOKEN_GETMAD($3,$$,')'); | |
1341 | } | |
09bef843 | 1342 | | '(' ')' |
f05e27e5 DM |
1343 | { $$ = sawparens(newNULLLIST()); |
1344 | TOKEN_GETMAD($1,$$,'('); | |
1345 | TOKEN_GETMAD($2,$$,')'); | |
1346 | } | |
09bef843 SB |
1347 | | scalar %prec '(' |
1348 | { $$ = $1; } | |
1349 | | hsh %prec '(' | |
1350 | { $$ = $1; } | |
1351 | | ary %prec '(' | |
1352 | { $$ = $1; } | |
1353 | ; | |
1354 | ||
891be019 | 1355 | /* Basic list expressions */ |
fad39ff1 | 1356 | listexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1357 | { $$ = (OP*)NULL; } |
fad39ff1 | 1358 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
1359 | { $$ = $1; } |
1360 | ; | |
1361 | ||
1362 | listexprcom: /* NULL */ | |
bcabcc50 | 1363 | { $$ = (OP*)NULL; } |
79072805 LW |
1364 | | expr |
1365 | { $$ = $1; } | |
1366 | ; | |
1367 | ||
ea25a9b2 Z |
1368 | lpar_or_qw: '(' |
1369 | { $$ = $1; } | |
1370 | | QWLIST | |
f7e3d326 | 1371 | { munge_qwlist_to_paren_list($1); } |
ea25a9b2 Z |
1372 | '(' |
1373 | { $$ = $3; } | |
1374 | ; | |
1375 | ||
891be019 SC |
1376 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1377 | lexical */ | |
55497cff | 1378 | my_scalar: scalar |
12bd6ede | 1379 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1380 | ; |
1381 | ||
79072805 | 1382 | amper : '&' indirob |
f05e27e5 DM |
1383 | { $$ = newCVREF(IVAL($1),$2); |
1384 | TOKEN_GETMAD($1,$$,'&'); | |
1385 | } | |
a687059c LW |
1386 | ; |
1387 | ||
79072805 | 1388 | scalar : '$' indirob |
f05e27e5 DM |
1389 | { $$ = newSVREF($2); |
1390 | TOKEN_GETMAD($1,$$,'$'); | |
1391 | } | |
a687059c LW |
1392 | ; |
1393 | ||
79072805 | 1394 | ary : '@' indirob |
f05e27e5 DM |
1395 | { $$ = newAVREF($2); |
1396 | TOKEN_GETMAD($1,$$,'@'); | |
1397 | } | |
79072805 LW |
1398 | ; |
1399 | ||
1400 | hsh : '%' indirob | |
f05e27e5 DM |
1401 | { $$ = newHVREF($2); |
1402 | TOKEN_GETMAD($1,$$,'%'); | |
1403 | } | |
79072805 LW |
1404 | ; |
1405 | ||
1406 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1407 | { $$ = newAVREF($2); |
1408 | TOKEN_GETMAD($1,$$,'l'); | |
1409 | } | |
79072805 LW |
1410 | ; |
1411 | ||
1412 | star : '*' indirob | |
f05e27e5 DM |
1413 | { $$ = newGVREF(0,$2); |
1414 | TOKEN_GETMAD($1,$$,'*'); | |
1415 | } | |
79072805 LW |
1416 | ; |
1417 | ||
891be019 | 1418 | /* Indirect objects */ |
79072805 LW |
1419 | indirob : WORD |
1420 | { $$ = scalar($1); } | |
fad39ff1 | 1421 | | scalar %prec PREC_LOW |
f05e27e5 | 1422 | { $$ = scalar($1); } |
79072805 | 1423 | | block |
a0d0e21e | 1424 | { $$ = scope($1); } |
79072805 | 1425 | |
93a17b20 LW |
1426 | | PRIVATEREF |
1427 | { $$ = $1; } | |
8d063cd8 | 1428 | ; |