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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 $n variables within | |
43 | * an action. | |
166f8a29 DM |
44 | */ |
45 | ||
0de566d7 | 46 | /* Make the parser re-entrant. */ |
8d063cd8 | 47 | |
0de566d7 | 48 | %pure_parser |
8d063cd8 | 49 | |
f05e27e5 DM |
50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | ||
28ac2b49 | 52 | %start grammar |
9d116dd7 | 53 | |
8d063cd8 | 54 | %union { |
d5c6462e DM |
55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ | |
79072805 LW |
57 | char *pval; |
58 | OP *opval; | |
59 | GV *gvval; | |
f05e27e5 DM |
60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; | |
123d08c9 | 62 | TOKEN* i_tkval; |
f05e27e5 DM |
63 | #else |
64 | char *p_tkval; | |
123d08c9 DM |
65 | I32 i_tkval; |
66 | #endif | |
67 | #ifdef PERL_MAD | |
68 | TOKEN* tkval; | |
f05e27e5 | 69 | #endif |
8d063cd8 LW |
70 | } |
71 | ||
07ffcb73 | 72 | %token <ival> GRAMPROG GRAMFULLSTMT GRAMSTMTSEQ |
28ac2b49 | 73 | |
123d08c9 | 74 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
f0fcb552 | 75 | |
ea25a9b2 | 76 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF QWLIST |
4633a7c4 | 77 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
88e1f1a2 | 78 | %token <opval> PLUGEXPR PLUGSTMT |
f05e27e5 | 79 | %token <p_tkval> LABEL |
123d08c9 DM |
80 | %token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE |
81 | %token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR | |
82 | %token <i_tkval> GIVEN WHEN DEFAULT | |
be25f609 | 83 | %token <i_tkval> LOOPEX DOTDOT YADAYADA |
123d08c9 DM |
84 | %token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP |
85 | %token <i_tkval> RELOP EQOP MULOP ADDOP | |
86 | %token <i_tkval> DOLSHARP DO HASHBRACK NOAMP | |
87 | %token <i_tkval> LOCAL MY MYSUB REQUIRE | |
88 | %token <i_tkval> COLONATTR | |
f05e27e5 | 89 | |
ea25a9b2 Z |
90 | %type <i_tkval> lpar_or_qw |
91 | ||
a7aaec61 | 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 | } | |
07ffcb73 Z |
153 | | GRAMSTMTSEQ |
154 | { | |
155 | parser->expect = XSTATE; | |
156 | } | |
a7aaec61 | 157 | lineseq |
07ffcb73 Z |
158 | { |
159 | PL_eval_root = $3; | |
160 | $$ = 0; | |
161 | } | |
162 | ; | |
163 | ||
891be019 | 164 | /* The whole program */ |
ecb2f335 | 165 | prog : progstart |
ae986130 | 166 | /*CONTINUED*/ lineseq |
ecb2f335 | 167 | { $$ = $1; newPROG(block_end($1,$2)); } |
8d063cd8 LW |
168 | ; |
169 | ||
891be019 | 170 | /* An ordinary block */ |
a687059c | 171 | block : '{' remember lineseq '}' |
53a7735b DM |
172 | { if (PL_parser->copline > (line_t)IVAL($1)) |
173 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
174 | $$ = block_end($2, $3); |
175 | TOKEN_GETMAD($1,$$,'{'); | |
176 | TOKEN_GETMAD($4,$$,'}'); | |
177 | } | |
a0d0e21e LW |
178 | ; |
179 | ||
55497cff | 180 | remember: /* NULL */ /* start a full lexical scope */ |
181 | { $$ = block_start(TRUE); } | |
182 | ; | |
183 | ||
0d863452 | 184 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 | 185 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 RH |
186 | ; |
187 | ||
ecb2f335 NIS |
188 | progstart: |
189 | { | |
53a7735b | 190 | PL_parser->expect = XSTATE; $$ = block_start(TRUE); |
ecb2f335 NIS |
191 | } |
192 | ; | |
193 | ||
194 | ||
bbce6d69 | 195 | mblock : '{' mremember lineseq '}' |
53a7735b DM |
196 | { if (PL_parser->copline > (line_t)IVAL($1)) |
197 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
198 | $$ = block_end($2, $3); |
199 | TOKEN_GETMAD($1,$$,'{'); | |
200 | TOKEN_GETMAD($4,$$,'}'); | |
201 | } | |
55497cff | 202 | ; |
203 | ||
204 | mremember: /* NULL */ /* start a partial lexical scope */ | |
205 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
206 | ; |
207 | ||
891be019 | 208 | /* A collection of "lines" in the program */ |
8d063cd8 | 209 | lineseq : /* NULL */ |
bcabcc50 | 210 | { $$ = (OP*)NULL; } |
79072805 | 211 | | lineseq decl |
f05e27e5 | 212 | { |
2fcb4757 | 213 | $$ = IF_MAD(op_append_list(OP_LINESEQ, $1, $2), $1); |
f05e27e5 | 214 | } |
503de470 | 215 | | lineseq line |
2fcb4757 | 216 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 217 | PL_pad_reset_pending = TRUE; |
503de470 DM |
218 | if ($1 && $2) |
219 | PL_hints |= HINT_BLOCK_SCOPE; | |
220 | } | |
8d063cd8 LW |
221 | ; |
222 | ||
28ac2b49 Z |
223 | /* A statement, or "line", in the program */ |
224 | fullstmt: decl | |
225 | { $$ = $1; } | |
226 | | line | |
227 | { | |
228 | PL_pad_reset_pending = TRUE; | |
229 | $$ = $1; | |
230 | } | |
231 | ; | |
232 | ||
233 | /* A non-declaration statement */ | |
79072805 | 234 | line : label cond |
f05e27e5 DM |
235 | { $$ = newSTATEOP(0, PVAL($1), $2); |
236 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } | |
8d063cd8 | 237 | | loop /* loops add their own labels */ |
0d863452 RH |
238 | | switch /* ... and so do switches */ |
239 | { $$ = $1; } | |
240 | | label case | |
f05e27e5 | 241 | { $$ = newSTATEOP(0, PVAL($1), $2); } |
8d063cd8 | 242 | | label ';' |
f05e27e5 DM |
243 | { |
244 | if (PVAL($1)) { | |
245 | $$ = newSTATEOP(0, PVAL($1), newOP(OP_NULL, 0)); | |
246 | TOKEN_GETMAD($1,$$,'L'); | |
247 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first,';'); | |
248 | } | |
249 | else { | |
250 | $$ = IF_MAD( | |
251 | newOP(OP_NULL, 0), | |
bcabcc50 | 252 | (OP*)NULL); |
53a7735b | 253 | PL_parser->copline = NOLINE; |
f05e27e5 DM |
254 | TOKEN_FREE($1); |
255 | TOKEN_GETMAD($2,$$,';'); | |
256 | } | |
53a7735b | 257 | PL_parser->expect = XSTATE; |
f05e27e5 | 258 | } |
8d063cd8 | 259 | | label sideff ';' |
f05e27e5 DM |
260 | { |
261 | $$ = newSTATEOP(0, PVAL($1), $2); | |
53a7735b | 262 | PL_parser->expect = XSTATE; |
035e2bcc | 263 | DO_MAD({ |
f05e27e5 DM |
264 | /* sideff might already have a nexstate */ |
265 | OP* op = ((LISTOP*)$$)->op_first; | |
266 | if (op) { | |
267 | while (op->op_sibling && | |
268 | op->op_sibling->op_type == OP_NEXTSTATE) | |
269 | op = op->op_sibling; | |
270 | token_getmad($1,op,'L'); | |
271 | token_getmad($3,op,';'); | |
272 | } | |
035e2bcc | 273 | }) |
f05e27e5 | 274 | } |
4e4da3ac Z |
275 | | package_block |
276 | { $$ = newSTATEOP(0, NULL, | |
277 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
278 | NOLINE, (OP*)NULL, $1, | |
702646f2 | 279 | (OP*)NULL, 0)); } |
88e1f1a2 JV |
280 | | label PLUGSTMT |
281 | { $$ = newSTATEOP(0, PVAL($1), $2); } | |
8d063cd8 LW |
282 | ; |
283 | ||
891be019 | 284 | /* An expression which may have a side-effect */ |
a687059c | 285 | sideff : error |
bcabcc50 | 286 | { $$ = (OP*)NULL; } |
a687059c | 287 | | expr |
79072805 | 288 | { $$ = $1; } |
a687059c | 289 | | expr IF expr |
f05e27e5 DM |
290 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
291 | TOKEN_GETMAD($2,$$,'i'); | |
292 | } | |
a687059c | 293 | | expr UNLESS expr |
f05e27e5 DM |
294 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
295 | TOKEN_GETMAD($2,$$,'i'); | |
296 | } | |
a687059c | 297 | | expr WHILE expr |
f05e27e5 DM |
298 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
299 | TOKEN_GETMAD($2,$$,'w'); | |
300 | } | |
55497cff | 301 | | expr UNTIL iexpr |
f05e27e5 DM |
302 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
303 | TOKEN_GETMAD($2,$$,'w'); | |
304 | } | |
ecca16b0 | 305 | | expr FOR expr |
1a9a51d4 | 306 | { $$ = newFOROP(0, NULL, (line_t)IVAL($2), |
bcabcc50 | 307 | (OP*)NULL, $3, $1, (OP*)NULL); |
f05e27e5 DM |
308 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first->op_sibling,'w'); |
309 | } | |
f20dcd76 VP |
310 | | expr WHEN expr |
311 | { $$ = newWHENOP($3, scope($1)); } | |
79072805 LW |
312 | ; |
313 | ||
891be019 | 314 | /* else and elsif blocks */ |
79072805 | 315 | else : /* NULL */ |
bcabcc50 | 316 | { $$ = (OP*)NULL; } |
55497cff | 317 | | ELSE mblock |
f05e27e5 DM |
318 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); |
319 | TOKEN_GETMAD($1,$$,'o'); | |
320 | } | |
ea25a9b2 | 321 | | ELSIF lpar_or_qw mexpr ')' mblock else |
53a7735b | 322 | { PL_parser->copline = (line_t)IVAL($1); |
f6f3a1fe | 323 | $$ = newCONDOP(0, newSTATEOP(OPf_SPECIAL,NULL,$3), scope($5), $6); |
f05e27e5 DM |
324 | PL_hints |= HINT_BLOCK_SCOPE; |
325 | TOKEN_GETMAD($1,$$,'I'); | |
326 | TOKEN_GETMAD($2,$$,'('); | |
327 | TOKEN_GETMAD($4,$$,')'); | |
328 | } | |
79072805 LW |
329 | ; |
330 | ||
891be019 | 331 | /* Real conditional expressions */ |
ea25a9b2 | 332 | cond : IF lpar_or_qw remember mexpr ')' mblock else |
53a7735b | 333 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 334 | $$ = block_end($3, |
f05e27e5 DM |
335 | newCONDOP(0, $4, scope($6), $7)); |
336 | TOKEN_GETMAD($1,$$,'I'); | |
337 | TOKEN_GETMAD($2,$$,'('); | |
338 | TOKEN_GETMAD($5,$$,')'); | |
339 | } | |
ea25a9b2 | 340 | | UNLESS lpar_or_qw remember miexpr ')' mblock else |
53a7735b | 341 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 342 | $$ = block_end($3, |
f05e27e5 DM |
343 | newCONDOP(0, $4, scope($6), $7)); |
344 | TOKEN_GETMAD($1,$$,'I'); | |
345 | TOKEN_GETMAD($2,$$,'('); | |
346 | TOKEN_GETMAD($5,$$,')'); | |
347 | } | |
79072805 LW |
348 | ; |
349 | ||
0d863452 | 350 | /* Cases for a switch statement */ |
ea25a9b2 | 351 | case : WHEN lpar_or_qw remember mexpr ')' mblock |
0d863452 RH |
352 | { $$ = block_end($3, |
353 | newWHENOP($4, scope($6))); } | |
354 | | DEFAULT block | |
355 | { $$ = newWHENOP(0, scope($2)); } | |
356 | ; | |
357 | ||
891be019 | 358 | /* Continue blocks */ |
79072805 | 359 | cont : /* NULL */ |
bcabcc50 | 360 | { $$ = (OP*)NULL; } |
79072805 | 361 | | CONTINUE block |
f05e27e5 DM |
362 | { $$ = scope($2); |
363 | TOKEN_GETMAD($1,$$,'o'); | |
364 | } | |
79072805 LW |
365 | ; |
366 | ||
891be019 | 367 | /* Loops: while, until, for, and a bare block */ |
ea25a9b2 | 368 | loop : label WHILE lpar_or_qw remember texpr ')' mintro mblock cont |
f05e27e5 | 369 | { OP *innerop; |
5ca68648 | 370 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 | 371 | $$ = block_end($4, |
f05e27e5 | 372 | newSTATEOP(0, PVAL($1), |
bcabcc50 | 373 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 DM |
374 | IVAL($2), $5, $8, $9, $7))); |
375 | TOKEN_GETMAD($1,innerop,'L'); | |
376 | TOKEN_GETMAD($2,innerop,'W'); | |
377 | TOKEN_GETMAD($3,innerop,'('); | |
378 | TOKEN_GETMAD($6,innerop,')'); | |
379 | } | |
380 | ||
ea25a9b2 | 381 | | label UNTIL lpar_or_qw remember iexpr ')' mintro mblock cont |
f05e27e5 | 382 | { OP *innerop; |
5ca68648 | 383 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 | 384 | $$ = block_end($4, |
f05e27e5 | 385 | newSTATEOP(0, PVAL($1), |
bcabcc50 | 386 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 DM |
387 | IVAL($2), $5, $8, $9, $7))); |
388 | TOKEN_GETMAD($1,innerop,'L'); | |
389 | TOKEN_GETMAD($2,innerop,'W'); | |
390 | TOKEN_GETMAD($3,innerop,'('); | |
391 | TOKEN_GETMAD($6,innerop,')'); | |
392 | } | |
ea25a9b2 | 393 | | label FOR MY remember my_scalar lpar_or_qw mexpr ')' mblock cont |
f05e27e5 DM |
394 | { OP *innerop; |
395 | $$ = block_end($4, | |
396 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
397 | $5, $7, $9, $10)); | |
398 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
399 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
400 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'d'); | |
401 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
402 | TOKEN_GETMAD($8,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
403 | } | |
ea25a9b2 | 404 | | label FOR scalar lpar_or_qw remember mexpr ')' mblock cont |
f05e27e5 DM |
405 | { OP *innerop; |
406 | $$ = block_end($5, | |
407 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
408 | mod($3, OP_ENTERLOOP), $6, $8, $9)); | |
409 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
410 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
411 | TOKEN_GETMAD($4,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
412 | TOKEN_GETMAD($7,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
413 | } | |
ea25a9b2 | 414 | | label FOR lpar_or_qw remember mexpr ')' mblock cont |
f05e27e5 DM |
415 | { OP *innerop; |
416 | $$ = block_end($4, | |
417 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
bcabcc50 | 418 | (OP*)NULL, $5, $7, $8)); |
f05e27e5 DM |
419 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); |
420 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
421 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
422 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
423 | } | |
ea25a9b2 | 424 | | label FOR lpar_or_qw remember mnexpr ';' texpr ';' mintro mnexpr ')' |
a034e688 | 425 | mblock |
8d063cd8 | 426 | /* basically fake up an initialize-while lineseq */ |
36c66720 | 427 | { OP *forop; |
53a7735b | 428 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 429 | forop = newSTATEOP(0, PVAL($1), |
bcabcc50 | 430 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 | 431 | IVAL($2), scalar($7), |
a034e688 | 432 | $12, $10, $9)); |
f05e27e5 | 433 | #ifdef MAD |
2fcb4757 | 434 | forop = newUNOP(OP_NULL, 0, op_append_elem(OP_LINESEQ, |
f05e27e5 | 435 | newSTATEOP(0, |
63031daf | 436 | CopLABEL_alloc(($1)->tk_lval.pval), |
700f8fa5 | 437 | ($5 ? $5 : newOP(OP_NULL, 0)) ), |
f05e27e5 DM |
438 | forop)); |
439 | ||
440 | token_getmad($2,forop,'3'); | |
441 | token_getmad($3,forop,'('); | |
442 | token_getmad($6,forop,'1'); | |
443 | token_getmad($8,forop,'2'); | |
444 | token_getmad($11,forop,')'); | |
445 | token_getmad($1,forop,'L'); | |
446 | #else | |
36c66720 | 447 | if ($5) { |
2fcb4757 | 448 | forop = op_append_elem(OP_LINESEQ, |
63031daf | 449 | newSTATEOP(0, CopLABEL_alloc($1), $5), |
36c66720 RH |
450 | forop); |
451 | } | |
452 | ||
f05e27e5 DM |
453 | |
454 | #endif | |
36c66720 | 455 | $$ = block_end($4, forop); } |
79072805 | 456 | | label block cont /* a block is a loop that happens once */ |
f05e27e5 | 457 | { $$ = newSTATEOP(0, PVAL($1), |
bcabcc50 NC |
458 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
459 | NOLINE, (OP*)NULL, $2, $3, 0)); | |
f05e27e5 | 460 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } |
8d063cd8 LW |
461 | ; |
462 | ||
0d863452 | 463 | /* Switch blocks */ |
ea25a9b2 | 464 | switch : label GIVEN lpar_or_qw remember mydefsv mexpr ')' mblock |
5ca68648 | 465 | { PL_parser->copline = (line_t) IVAL($2); |
0d863452 | 466 | $$ = block_end($4, |
f05e27e5 | 467 | newSTATEOP(0, PVAL($1), |
0d863452 RH |
468 | newGIVENOP($6, scope($8), |
469 | (PADOFFSET) $5) )); } | |
470 | ; | |
471 | ||
a034e688 DM |
472 | /* determine whether there are any new my declarations */ |
473 | mintro : /* NULL */ | |
474 | { $$ = (PL_min_intro_pending && | |
475 | PL_max_intro_pending >= PL_min_intro_pending); | |
476 | intro_my(); } | |
477 | ||
891be019 | 478 | /* Normal expression */ |
8d063cd8 | 479 | nexpr : /* NULL */ |
bcabcc50 | 480 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
481 | | sideff |
482 | ; | |
483 | ||
891be019 | 484 | /* Boolean expression */ |
8d063cd8 | 485 | texpr : /* NULL means true */ |
f05e27e5 DM |
486 | { YYSTYPE tmplval; |
487 | (void)scan_num("1", &tmplval); | |
488 | $$ = tmplval.opval; } | |
8d063cd8 LW |
489 | | expr |
490 | ; | |
491 | ||
891be019 | 492 | /* Inverted boolean expression */ |
55497cff | 493 | iexpr : expr |
494 | { $$ = invert(scalar($1)); } | |
495 | ; | |
496 | ||
891be019 | 497 | /* Expression with its own lexical scope */ |
55497cff | 498 | mexpr : expr |
bbce6d69 | 499 | { $$ = $1; intro_my(); } |
500 | ; | |
501 | ||
502 | mnexpr : nexpr | |
503 | { $$ = $1; intro_my(); } | |
55497cff | 504 | ; |
505 | ||
55497cff | 506 | miexpr : iexpr |
bbce6d69 | 507 | { $$ = $1; intro_my(); } |
55497cff | 508 | ; |
509 | ||
891be019 | 510 | /* Optional "MAIN:"-style loop labels */ |
8d063cd8 | 511 | label : /* empty */ |
f05e27e5 DM |
512 | { |
513 | #ifdef MAD | |
514 | YYSTYPE tmplval; | |
1a9a51d4 | 515 | tmplval.pval = NULL; |
f05e27e5 DM |
516 | $$ = newTOKEN(OP_NULL, tmplval, 0); |
517 | #else | |
1a9a51d4 | 518 | $$ = NULL; |
f05e27e5 DM |
519 | #endif |
520 | } | |
32c2e4fb | 521 | | LABEL |
8d063cd8 LW |
522 | ; |
523 | ||
f05e27e5 | 524 | /* Some kind of declaration - just hang on peg in the parse tree */ |
8d063cd8 | 525 | decl : format |
f05e27e5 | 526 | { $$ = $1; } |
8d063cd8 | 527 | | subrout |
f05e27e5 | 528 | { $$ = $1; } |
09bef843 | 529 | | mysubrout |
f05e27e5 | 530 | { $$ = $1; } |
a687059c | 531 | | package |
f05e27e5 | 532 | { $$ = $1; } |
a0d0e21e | 533 | | use |
f05e27e5 DM |
534 | { $$ = $1; } |
535 | ||
536 | /* these two are only used by MAD */ | |
537 | ||
538 | | peg | |
539 | { $$ = $1; } | |
540 | ; | |
541 | ||
542 | peg : PEG | |
543 | { $$ = newOP(OP_NULL,0); | |
544 | TOKEN_GETMAD($1,$$,'p'); | |
545 | } | |
8d063cd8 LW |
546 | ; |
547 | ||
718a7425 | 548 | format : FORMAT startformsub formname block |
421f30ed Z |
549 | { |
550 | CV *fmtcv = PL_compcv; | |
551 | SvREFCNT_inc_simple_void(PL_compcv); | |
f05e27e5 | 552 | #ifdef MAD |
718a7425 | 553 | $$ = newFORM($2, $3, $4); |
f05e27e5 DM |
554 | prepend_madprops($1->tk_mad, $$, 'F'); |
555 | $1->tk_mad = 0; | |
556 | token_free($1); | |
557 | #else | |
718a7425 | 558 | newFORM($2, $3, $4); |
bcabcc50 | 559 | $$ = (OP*)NULL; |
f05e27e5 | 560 | #endif |
421f30ed Z |
561 | if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) { |
562 | SvREFCNT_inc_simple_void(fmtcv); | |
563 | pad_add_anon((SV*)fmtcv, OP_NULL); | |
564 | } | |
f05e27e5 | 565 | } |
44a8e56a | 566 | ; |
567 | ||
568 | formname: WORD { $$ = $1; } | |
bcabcc50 | 569 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
570 | ; |
571 | ||
891be019 | 572 | /* Unimplemented "my sub foo { }" */ |
718a7425 | 573 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
5a5094bd | 574 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 575 | #ifdef MAD |
718a7425 | 576 | $$ = newMYSUB($2, $3, $4, $5, $6); |
f05e27e5 DM |
577 | token_getmad($1,$$,'d'); |
578 | #else | |
718a7425 | 579 | newMYSUB($2, $3, $4, $5, $6); |
bcabcc50 | 580 | $$ = (OP*)NULL; |
f05e27e5 DM |
581 | #endif |
582 | } | |
09bef843 SB |
583 | ; |
584 | ||
891be019 | 585 | /* Subroutine definition */ |
718a7425 | 586 | subrout : SUB startsub subname proto subattrlist subbody |
5a5094bd | 587 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 588 | #ifdef MAD |
035e2bcc DM |
589 | { |
590 | OP* o = newSVOP(OP_ANONCODE, 0, | |
591 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
592 | $$ = newOP(OP_NULL,0); | |
593 | op_getmad(o,$$,'&'); | |
594 | op_getmad($3,$$,'n'); | |
595 | op_getmad($4,$$,'s'); | |
596 | op_getmad($5,$$,'a'); | |
597 | token_getmad($1,$$,'d'); | |
598 | append_madprops($6->op_madprop, $$, 0); | |
599 | $6->op_madprop = 0; | |
600 | } | |
f05e27e5 | 601 | #else |
718a7425 | 602 | newATTRSUB($2, $3, $4, $5, $6); |
bcabcc50 | 603 | $$ = (OP*)NULL; |
f05e27e5 DM |
604 | #endif |
605 | } | |
28757baa | 606 | ; |
607 | ||
fa83b5b6 | 608 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
609 | { $$ = start_subparse(FALSE, 0); |
610 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 611 | |
28757baa | 612 | ; |
613 | ||
614 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
615 | { $$ = start_subparse(FALSE, CVf_ANON); |
616 | SAVEFREESV(PL_compcv); } | |
28757baa | 617 | ; |
618 | ||
44a8e56a | 619 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
620 | { $$ = start_subparse(TRUE, 0); |
621 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 622 | ; |
623 | ||
891be019 | 624 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 625 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 626 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
627 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
628 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 629 | CvSPECIAL_on(PL_compcv); |
28757baa | 630 | $$ = $1; } |
a0d0e21e LW |
631 | ; |
632 | ||
891be019 | 633 | /* Subroutine prototype */ |
4633a7c4 | 634 | proto : /* NULL */ |
bcabcc50 | 635 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
636 | | THING |
637 | ; | |
28757baa | 638 | |
891be019 | 639 | /* Optional list of subroutine attributes */ |
09bef843 | 640 | subattrlist: /* NULL */ |
bcabcc50 | 641 | { $$ = (OP*)NULL; } |
09bef843 | 642 | | COLONATTR THING |
f05e27e5 DM |
643 | { $$ = $2; |
644 | TOKEN_GETMAD($1,$$,':'); | |
645 | } | |
09bef843 | 646 | | COLONATTR |
f05e27e5 DM |
647 | { $$ = IF_MAD( |
648 | newOP(OP_NULL, 0), | |
bcabcc50 | 649 | (OP*)NULL |
f05e27e5 DM |
650 | ); |
651 | TOKEN_GETMAD($1,$$,':'); | |
652 | } | |
09bef843 SB |
653 | ; |
654 | ||
891be019 | 655 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 656 | myattrlist: COLONATTR THING |
f05e27e5 DM |
657 | { $$ = $2; |
658 | TOKEN_GETMAD($1,$$,':'); | |
659 | } | |
09bef843 | 660 | | COLONATTR |
f05e27e5 DM |
661 | { $$ = IF_MAD( |
662 | newOP(OP_NULL, 0), | |
bcabcc50 | 663 | (OP*)NULL |
f05e27e5 DM |
664 | ); |
665 | TOKEN_GETMAD($1,$$,':'); | |
666 | } | |
09bef843 SB |
667 | ; |
668 | ||
891be019 | 669 | /* Subroutine body - either null or a block */ |
28757baa | 670 | subbody : block { $$ = $1; } |
f05e27e5 DM |
671 | | ';' { $$ = IF_MAD( |
672 | newOP(OP_NULL,0), | |
bcabcc50 | 673 | (OP*)NULL |
f05e27e5 | 674 | ); |
53a7735b | 675 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
676 | TOKEN_GETMAD($1,$$,';'); |
677 | } | |
8d063cd8 LW |
678 | ; |
679 | ||
6fa4d285 | 680 | package : PACKAGE WORD WORD ';' |
f05e27e5 DM |
681 | { |
682 | #ifdef MAD | |
0f811330 RGS |
683 | $$ = package($3); |
684 | token_getmad($1,$$,'o'); | |
685 | if ($2) | |
686 | package_version($2); | |
687 | token_getmad($4,$$,';'); | |
f05e27e5 | 688 | #else |
6fa4d285 | 689 | package($3); |
0f811330 RGS |
690 | if ($2) |
691 | package_version($2); | |
bcabcc50 | 692 | $$ = (OP*)NULL; |
0f811330 | 693 | #endif |
f05e27e5 | 694 | } |
a687059c LW |
695 | ; |
696 | ||
4e4da3ac Z |
697 | package_block: PACKAGE WORD WORD '{' remember |
698 | { | |
af5050ac Z |
699 | int save_3_latefree = $3->op_latefree; |
700 | $3->op_latefree = 1; | |
4e4da3ac | 701 | package($3); |
af5050ac Z |
702 | $3->op_latefree = save_3_latefree; |
703 | if ($2) { | |
704 | int save_2_latefree = $2->op_latefree; | |
705 | $2->op_latefree = 1; | |
4e4da3ac | 706 | package_version($2); |
af5050ac Z |
707 | $2->op_latefree = save_2_latefree; |
708 | } | |
4e4da3ac Z |
709 | } |
710 | lineseq '}' | |
711 | { if (PL_parser->copline > (line_t)IVAL($4)) | |
712 | PL_parser->copline = (line_t)IVAL($4); | |
713 | $$ = block_end($5, $7); | |
714 | TOKEN_GETMAD($4,$$,'{'); | |
715 | TOKEN_GETMAD($8,$$,'}'); | |
af5050ac Z |
716 | op_free($3); |
717 | if ($2) | |
718 | op_free($2); | |
4e4da3ac Z |
719 | } |
720 | ; | |
721 | ||
718a7425 | 722 | use : USE startsub |
1aff0e91 | 723 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 724 | WORD WORD listexpr ';' |
5a5094bd | 725 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 726 | #ifdef MAD |
718a7425 | 727 | $$ = utilize(IVAL($1), $2, $4, $5, $6); |
f05e27e5 | 728 | token_getmad($1,$$,'o'); |
718a7425 | 729 | token_getmad($7,$$,';'); |
5486870f DM |
730 | if (PL_parser->rsfp_filters && |
731 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
a22f28a4 | 732 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); |
f05e27e5 | 733 | #else |
718a7425 | 734 | utilize(IVAL($1), $2, $4, $5, $6); |
bcabcc50 | 735 | $$ = (OP*)NULL; |
f05e27e5 DM |
736 | #endif |
737 | } | |
85e6fe83 LW |
738 | ; |
739 | ||
891be019 | 740 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 741 | expr : expr ANDOP expr |
f05e27e5 DM |
742 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
743 | TOKEN_GETMAD($2,$$,'o'); | |
744 | } | |
a0d0e21e | 745 | | expr OROP expr |
f05e27e5 DM |
746 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
747 | TOKEN_GETMAD($2,$$,'o'); | |
748 | } | |
c963b151 | 749 | | expr DOROP expr |
f05e27e5 DM |
750 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
751 | TOKEN_GETMAD($2,$$,'o'); | |
752 | } | |
fad39ff1 | 753 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
754 | ; |
755 | ||
891be019 | 756 | /* Expressions are a list of terms joined by commas */ |
a0d0e21e | 757 | argexpr : argexpr ',' |
f05e27e5 DM |
758 | { |
759 | #ifdef MAD | |
760 | OP* op = newNULLLIST(); | |
761 | token_getmad($2,op,','); | |
2fcb4757 | 762 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
763 | #else |
764 | $$ = $1; | |
765 | #endif | |
766 | } | |
a0d0e21e | 767 | | argexpr ',' term |
f05e27e5 | 768 | { |
29522234 | 769 | OP* term = $3; |
f05e27e5 | 770 | DO_MAD( |
29522234 DM |
771 | term = newUNOP(OP_NULL, 0, term); |
772 | token_getmad($2,term,','); | |
f05e27e5 | 773 | ) |
2fcb4757 | 774 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 775 | } |
fad39ff1 | 776 | | term %prec PREC_LOW |
8d063cd8 LW |
777 | ; |
778 | ||
891be019 | 779 | /* List operators */ |
ad4673e5 | 780 | listop : LSTOP indirob argexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 781 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 782 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
783 | TOKEN_GETMAD($1,$$,'o'); |
784 | } | |
891be019 | 785 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 786 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 787 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
788 | TOKEN_GETMAD($1,$$,'o'); |
789 | TOKEN_GETMAD($2,$$,'('); | |
790 | TOKEN_GETMAD($5,$$,')'); | |
791 | } | |
ea25a9b2 | 792 | | term ARROW method lpar_or_qw listexprcom ')' /* $foo->bar(list) */ |
4633a7c4 | 793 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
794 | op_append_elem(OP_LIST, |
795 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
796 | newUNOP(OP_METHOD, 0, $3))); |
797 | TOKEN_GETMAD($2,$$,'A'); | |
798 | TOKEN_GETMAD($4,$$,'('); | |
799 | TOKEN_GETMAD($6,$$,')'); | |
800 | } | |
891be019 | 801 | | term ARROW method /* $foo->bar */ |
b1524f17 | 802 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 803 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
804 | newUNOP(OP_METHOD, 0, $3))); |
805 | TOKEN_GETMAD($2,$$,'A'); | |
806 | } | |
891be019 | 807 | | METHOD indirob listexpr /* new Class @args */ |
4633a7c4 | 808 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
809 | op_append_elem(OP_LIST, |
810 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
811 | newUNOP(OP_METHOD, 0, $1))); |
812 | } | |
891be019 | 813 | | FUNCMETH indirob '(' listexprcom ')' /* method $object (@args) */ |
4633a7c4 | 814 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
815 | op_append_elem(OP_LIST, |
816 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
817 | newUNOP(OP_METHOD, 0, $1))); |
818 | TOKEN_GETMAD($3,$$,'('); | |
819 | TOKEN_GETMAD($5,$$,')'); | |
820 | } | |
891be019 | 821 | | LSTOP listexpr /* print @args */ |
f05e27e5 DM |
822 | { $$ = convert(IVAL($1), 0, $2); |
823 | TOKEN_GETMAD($1,$$,'o'); | |
824 | } | |
891be019 | 825 | | FUNC '(' listexprcom ')' /* print (@args) */ |
f05e27e5 DM |
826 | { $$ = convert(IVAL($1), 0, $3); |
827 | TOKEN_GETMAD($1,$$,'o'); | |
828 | TOKEN_GETMAD($2,$$,'('); | |
829 | TOKEN_GETMAD($4,$$,')'); | |
830 | } | |
718a7425 | 831 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 832 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 833 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
891be019 | 834 | listexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 835 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
836 | op_append_elem(OP_LIST, |
837 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 838 | } |
a687059c LW |
839 | ; |
840 | ||
891be019 | 841 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
842 | method : METHOD |
843 | | scalar | |
844 | ; | |
845 | ||
891be019 SC |
846 | /* Some kind of subscripted expression */ |
847 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
848 | /* In this and all the hash accessors, ';' is | |
849 | * provided by the tokeniser */ | |
264e1af3 | 850 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 851 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
852 | TOKEN_GETMAD($2,$$,'{'); |
853 | TOKEN_GETMAD($4,$$,';'); | |
854 | TOKEN_GETMAD($5,$$,'}'); | |
855 | } | |
891be019 | 856 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
857 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
858 | TOKEN_GETMAD($2,$$,'['); | |
859 | TOKEN_GETMAD($4,$$,']'); | |
860 | } | |
891be019 | 861 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
862 | { $$ = newBINOP(OP_AELEM, 0, |
863 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
864 | scalar($4)); |
865 | TOKEN_GETMAD($2,$$,'a'); | |
866 | TOKEN_GETMAD($3,$$,'['); | |
867 | TOKEN_GETMAD($5,$$,']'); | |
868 | } | |
891be019 | 869 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
870 | { $$ = newBINOP(OP_AELEM, 0, |
871 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
872 | scalar($3)); |
873 | TOKEN_GETMAD($2,$$,'['); | |
874 | TOKEN_GETMAD($4,$$,']'); | |
875 | } | |
891be019 | 876 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 | 877 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 878 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
879 | TOKEN_GETMAD($2,$$,'{'); |
880 | TOKEN_GETMAD($4,$$,';'); | |
881 | TOKEN_GETMAD($5,$$,'}'); | |
882 | } | |
891be019 | 883 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
884 | { $$ = newBINOP(OP_HELEM, 0, |
885 | ref(newHVREF($1),OP_RV2HV), | |
886 | jmaybe($4)); | |
53a7735b | 887 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
888 | TOKEN_GETMAD($2,$$,'a'); |
889 | TOKEN_GETMAD($3,$$,'{'); | |
890 | TOKEN_GETMAD($5,$$,';'); | |
891 | TOKEN_GETMAD($6,$$,'}'); | |
892 | } | |
891be019 | 893 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
894 | { $$ = newBINOP(OP_HELEM, 0, |
895 | ref(newHVREF($1),OP_RV2HV), | |
896 | jmaybe($3)); | |
53a7735b | 897 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
898 | TOKEN_GETMAD($2,$$,'{'); |
899 | TOKEN_GETMAD($4,$$,';'); | |
900 | TOKEN_GETMAD($5,$$,'}'); | |
901 | } | |
891be019 | 902 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 903 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
904 | newCVREF(0, scalar($1))); |
905 | TOKEN_GETMAD($2,$$,'a'); | |
906 | TOKEN_GETMAD($3,$$,'('); | |
907 | TOKEN_GETMAD($4,$$,')'); | |
908 | } | |
891be019 | 909 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 910 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 911 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
912 | newCVREF(0, scalar($1)))); |
913 | TOKEN_GETMAD($2,$$,'a'); | |
914 | TOKEN_GETMAD($3,$$,'('); | |
915 | TOKEN_GETMAD($5,$$,')'); | |
916 | } | |
fad39ff1 | 917 | |
ea25a9b2 | 918 | | subscripted lpar_or_qw expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 919 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 920 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
921 | newCVREF(0, scalar($1)))); |
922 | TOKEN_GETMAD($2,$$,'('); | |
923 | TOKEN_GETMAD($4,$$,')'); | |
924 | } | |
ea25a9b2 | 925 | | subscripted lpar_or_qw ')' /* $foo->{bar}->() */ |
fad39ff1 | 926 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
927 | newCVREF(0, scalar($1))); |
928 | TOKEN_GETMAD($2,$$,'('); | |
929 | TOKEN_GETMAD($3,$$,')'); | |
930 | } | |
9a9798c2 | 931 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
932 | { $$ = newSLICEOP(0, $5, $2); |
933 | TOKEN_GETMAD($1,$$,'('); | |
934 | TOKEN_GETMAD($3,$$,')'); | |
935 | TOKEN_GETMAD($4,$$,'['); | |
936 | TOKEN_GETMAD($6,$$,']'); | |
937 | } | |
ea25a9b2 Z |
938 | | QWLIST '[' expr ']' /* list literal slice */ |
939 | { $$ = newSLICEOP(0, $3, $1); | |
940 | TOKEN_GETMAD($2,$$,'['); | |
941 | TOKEN_GETMAD($4,$$,']'); | |
942 | } | |
9a9798c2 | 943 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 944 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
945 | TOKEN_GETMAD($1,$$,'('); |
946 | TOKEN_GETMAD($2,$$,')'); | |
947 | TOKEN_GETMAD($3,$$,'['); | |
948 | TOKEN_GETMAD($5,$$,']'); | |
949 | } | |
891be019 | 950 | ; |
fad39ff1 | 951 | |
891be019 | 952 | /* Binary operators between terms */ |
f05e27e5 DM |
953 | termbinop: term ASSIGNOP term /* $x = $y */ |
954 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
955 | TOKEN_GETMAD($2,$$,'o'); | |
956 | } | |
891be019 | 957 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
958 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
959 | TOKEN_GETMAD($2,$$,'o'); | |
960 | } | |
891be019 | 961 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 962 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 963 | scalar($1); |
f05e27e5 DM |
964 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
965 | TOKEN_GETMAD($2,$$,'o'); | |
966 | } | |
891be019 | 967 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
968 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
969 | TOKEN_GETMAD($2,$$,'o'); | |
970 | } | |
891be019 | 971 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
972 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
973 | TOKEN_GETMAD($2,$$,'o'); | |
974 | } | |
891be019 | 975 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
976 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
977 | TOKEN_GETMAD($2,$$,'o'); | |
978 | } | |
891be019 | 979 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
980 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
981 | TOKEN_GETMAD($2,$$,'o'); | |
982 | } | |
891be019 | 983 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
984 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
985 | TOKEN_GETMAD($2,$$,'o'); | |
986 | } | |
891be019 | 987 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
988 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
989 | TOKEN_GETMAD($2,$$,'o'); | |
990 | } | |
891be019 | 991 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
992 | { |
993 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 994 | DO_MAD({ |
f05e27e5 DM |
995 | UNOP *op; |
996 | op = (UNOP*)$$; | |
997 | op = (UNOP*)op->op_first; /* get to flop */ | |
998 | op = (UNOP*)op->op_first; /* get to flip */ | |
999 | op = (UNOP*)op->op_first; /* get to range */ | |
1000 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 1001 | }) |
f05e27e5 | 1002 | } |
891be019 | 1003 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
1004 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
1005 | TOKEN_GETMAD($2,$$,'o'); | |
1006 | } | |
891be019 | 1007 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
1008 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
1009 | TOKEN_GETMAD($2,$$,'o'); | |
1010 | } | |
c963b151 | 1011 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
1012 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
1013 | TOKEN_GETMAD($2,$$,'o'); | |
1014 | } | |
891be019 | 1015 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
1016 | { $$ = bind_match(IVAL($2), $1, $3); |
1017 | TOKEN_GETMAD($2, | |
1018 | ($$->op_type == OP_NOT | |
1019 | ? ((UNOP*)$$)->op_first : $$), | |
1020 | '~'); | |
1021 | } | |
891be019 | 1022 | ; |
8d063cd8 | 1023 | |
891be019 SC |
1024 | /* Unary operators and terms */ |
1025 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
1026 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
1027 | TOKEN_GETMAD($1,$$,'o'); | |
1028 | } | |
891be019 | 1029 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
1030 | { $$ = IF_MAD( |
1031 | newUNOP(OP_NULL, 0, $2), | |
1032 | $2 | |
1033 | ); | |
1034 | TOKEN_GETMAD($1,$$,'+'); | |
1035 | } | |
891be019 | 1036 | | '!' term /* !$x */ |
f05e27e5 DM |
1037 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1038 | TOKEN_GETMAD($1,$$,'o'); | |
1039 | } | |
891be019 | 1040 | | '~' term /* ~$x */ |
f05e27e5 DM |
1041 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1042 | TOKEN_GETMAD($1,$$,'o'); | |
1043 | } | |
891be019 | 1044 | | term POSTINC /* $x++ */ |
79072805 | 1045 | { $$ = newUNOP(OP_POSTINC, 0, |
f05e27e5 DM |
1046 | mod(scalar($1), OP_POSTINC)); |
1047 | TOKEN_GETMAD($2,$$,'o'); | |
1048 | } | |
891be019 | 1049 | | term POSTDEC /* $x-- */ |
79072805 | 1050 | { $$ = newUNOP(OP_POSTDEC, 0, |
f05e27e5 DM |
1051 | mod(scalar($1), OP_POSTDEC)); |
1052 | TOKEN_GETMAD($2,$$,'o'); | |
1053 | } | |
891be019 | 1054 | | PREINC term /* ++$x */ |
79072805 | 1055 | { $$ = newUNOP(OP_PREINC, 0, |
f05e27e5 DM |
1056 | mod(scalar($2), OP_PREINC)); |
1057 | TOKEN_GETMAD($1,$$,'o'); | |
1058 | } | |
891be019 | 1059 | | PREDEC term /* --$x */ |
79072805 | 1060 | { $$ = newUNOP(OP_PREDEC, 0, |
f05e27e5 DM |
1061 | mod(scalar($2), OP_PREDEC)); |
1062 | TOKEN_GETMAD($1,$$,'o'); | |
1063 | } | |
891be019 SC |
1064 | |
1065 | ; | |
1066 | ||
1067 | /* Constructors for anonymous data */ | |
1068 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1069 | { $$ = newANONLIST($2); |
1070 | TOKEN_GETMAD($1,$$,'['); | |
1071 | TOKEN_GETMAD($3,$$,']'); | |
1072 | } | |
891be019 | 1073 | | '[' ']' |
bcabcc50 | 1074 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1075 | TOKEN_GETMAD($1,$$,'['); |
1076 | TOKEN_GETMAD($2,$$,']'); | |
1077 | } | |
891be019 | 1078 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1079 | { $$ = newANONHASH($2); |
1080 | TOKEN_GETMAD($1,$$,'{'); | |
1081 | TOKEN_GETMAD($3,$$,';'); | |
1082 | TOKEN_GETMAD($4,$$,'}'); | |
1083 | } | |
891be019 | 1084 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1085 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1086 | TOKEN_GETMAD($1,$$,'{'); |
1087 | TOKEN_GETMAD($2,$$,';'); | |
1088 | TOKEN_GETMAD($3,$$,'}'); | |
1089 | } | |
718a7425 | 1090 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1091 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1092 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1093 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1094 | OP_GETMAD($3,$$,'s'); |
1095 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1096 | } |
891be019 SC |
1097 | |
1098 | ; | |
1099 | ||
1100 | /* Things called with "do" */ | |
1101 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1102 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1103 | TOKEN_GETMAD($1,$$,'o'); |
1104 | } | |
891be019 | 1105 | | DO block %prec '(' /* do { code */ |
f05e27e5 DM |
1106 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); |
1107 | TOKEN_GETMAD($1,$$,'D'); | |
1108 | } | |
ea25a9b2 | 1109 | | DO WORD lpar_or_qw ')' /* do somesub() */ |
891be019 SC |
1110 | { $$ = newUNOP(OP_ENTERSUB, |
1111 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1112 | op_prepend_elem(OP_LIST, |
891be019 SC |
1113 | scalar(newCVREF( |
1114 | (OPpENTERSUB_AMPER<<8), | |
1115 | scalar($2) | |
bcabcc50 | 1116 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1117 | TOKEN_GETMAD($1,$$,'o'); |
1118 | TOKEN_GETMAD($3,$$,'('); | |
1119 | TOKEN_GETMAD($4,$$,')'); | |
1120 | } | |
ea25a9b2 | 1121 | | DO WORD lpar_or_qw expr ')' /* do somesub(@args) */ |
891be019 SC |
1122 | { $$ = newUNOP(OP_ENTERSUB, |
1123 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1124 | op_append_elem(OP_LIST, |
891be019 SC |
1125 | $4, |
1126 | scalar(newCVREF( | |
1127 | (OPpENTERSUB_AMPER<<8), | |
1128 | scalar($2) | |
f05e27e5 DM |
1129 | )))); dep(); |
1130 | TOKEN_GETMAD($1,$$,'o'); | |
1131 | TOKEN_GETMAD($3,$$,'('); | |
1132 | TOKEN_GETMAD($5,$$,')'); | |
1133 | } | |
ea25a9b2 | 1134 | | DO scalar lpar_or_qw ')' /* do $subref () */ |
891be019 | 1135 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1136 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1137 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1138 | TOKEN_GETMAD($1,$$,'o'); |
1139 | TOKEN_GETMAD($3,$$,'('); | |
1140 | TOKEN_GETMAD($4,$$,')'); | |
1141 | } | |
ea25a9b2 | 1142 | | DO scalar lpar_or_qw expr ')' /* do $subref (@args) */ |
891be019 | 1143 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1144 | op_prepend_elem(OP_LIST, |
891be019 | 1145 | $4, |
f05e27e5 DM |
1146 | scalar(newCVREF(0,scalar($2))))); dep(); |
1147 | TOKEN_GETMAD($1,$$,'o'); | |
1148 | TOKEN_GETMAD($3,$$,'('); | |
1149 | TOKEN_GETMAD($5,$$,')'); | |
1150 | } | |
891be019 SC |
1151 | |
1152 | ; | |
1153 | ||
1154 | term : termbinop | |
1155 | | termunop | |
1156 | | anonymous | |
1157 | | termdo | |
e9bdcc27 | 1158 | | term '?' term ':' term |
f05e27e5 DM |
1159 | { $$ = newCONDOP(0, $1, $3, $5); |
1160 | TOKEN_GETMAD($2,$$,'?'); | |
1161 | TOKEN_GETMAD($4,$$,':'); | |
1162 | } | |
891be019 | 1163 | | REFGEN term /* \$x, \@y, \%z */ |
f05e27e5 DM |
1164 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); |
1165 | TOKEN_GETMAD($1,$$,'o'); | |
1166 | } | |
09bef843 SB |
1167 | | myattrterm %prec UNIOP |
1168 | { $$ = $1; } | |
1169 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1170 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1171 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1172 | } |
a0d0e21e | 1173 | | '(' expr ')' |
f05e27e5 DM |
1174 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1175 | TOKEN_GETMAD($1,$$,'('); | |
1176 | TOKEN_GETMAD($3,$$,')'); | |
1177 | } | |
ea25a9b2 Z |
1178 | | QWLIST |
1179 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1180 | | '(' ')' |
f05e27e5 DM |
1181 | { $$ = sawparens(newNULLLIST()); |
1182 | TOKEN_GETMAD($1,$$,'('); | |
1183 | TOKEN_GETMAD($2,$$,')'); | |
1184 | } | |
79072805 | 1185 | | scalar %prec '(' |
8d063cd8 | 1186 | { $$ = $1; } |
79072805 | 1187 | | star %prec '(' |
8d063cd8 | 1188 | { $$ = $1; } |
79072805 | 1189 | | hsh %prec '(' |
8d063cd8 | 1190 | { $$ = $1; } |
79072805 | 1191 | | ary %prec '(' |
8d063cd8 | 1192 | { $$ = $1; } |
891be019 | 1193 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1194 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1195 | | subscripted |
1196 | { $$ = $1; } | |
891be019 | 1197 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1198 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1199 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1200 | newLISTOP(OP_ASLICE, 0, |
1201 | list($3), | |
f05e27e5 DM |
1202 | ref($1, OP_ASLICE))); |
1203 | TOKEN_GETMAD($2,$$,'['); | |
1204 | TOKEN_GETMAD($4,$$,']'); | |
1205 | } | |
891be019 | 1206 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1207 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1208 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1209 | newLISTOP(OP_HSLICE, 0, |
1210 | list($3), | |
a0d0e21e | 1211 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1212 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1213 | TOKEN_GETMAD($2,$$,'{'); |
1214 | TOKEN_GETMAD($4,$$,';'); | |
1215 | TOKEN_GETMAD($5,$$,'}'); | |
1216 | } | |
79072805 LW |
1217 | | THING %prec '(' |
1218 | { $$ = $1; } | |
891be019 | 1219 | | amper /* &foo; */ |
c07a80fd | 1220 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ea25a9b2 | 1221 | | amper lpar_or_qw ')' /* &foo() */ |
f05e27e5 DM |
1222 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1223 | TOKEN_GETMAD($2,$$,'('); | |
1224 | TOKEN_GETMAD($3,$$,')'); | |
1225 | } | |
ea25a9b2 | 1226 | | amper lpar_or_qw expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1227 | { |
1228 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1229 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1230 | DO_MAD({ |
f05e27e5 DM |
1231 | OP* op = $$; |
1232 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1233 | op = (OP*)op->op_madprop->mad_val; | |
1234 | } | |
1235 | token_getmad($2,op,'('); | |
1236 | token_getmad($4,op,')'); | |
035e2bcc | 1237 | }) |
f05e27e5 | 1238 | } |
891be019 | 1239 | | NOAMP WORD listexpr /* foo(@args) */ |
a0d0e21e | 1240 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1241 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1242 | TOKEN_GETMAD($1,$$,'o'); |
1243 | } | |
891be019 | 1244 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1245 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1246 | PL_hints |= HINT_BLOCK_SCOPE; | |
1247 | TOKEN_GETMAD($1,$$,'o'); | |
1248 | } | |
a0d0e21e | 1249 | | LOOPEX term |
f05e27e5 DM |
1250 | { $$ = newLOOPEX(IVAL($1),$2); |
1251 | TOKEN_GETMAD($1,$$,'o'); | |
1252 | } | |
891be019 | 1253 | | NOTOP argexpr /* not $foo */ |
f05e27e5 DM |
1254 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1255 | TOKEN_GETMAD($1,$$,'o'); | |
1256 | } | |
891be019 | 1257 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1258 | { $$ = newOP(IVAL($1), 0); |
1259 | TOKEN_GETMAD($1,$$,'o'); | |
1260 | } | |
1261 | | UNIOP block /* eval { foo }* */ | |
1262 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1263 | TOKEN_GETMAD($1,$$,'o'); | |
1264 | } | |
891be019 | 1265 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1266 | { $$ = newUNOP(IVAL($1), 0, $2); |
1267 | TOKEN_GETMAD($1,$$,'o'); | |
1268 | } | |
d2fdf8fd RGS |
1269 | | REQUIRE /* require, $_ implied */ |
1270 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1271 | TOKEN_GETMAD($1,$$,'o'); | |
1272 | } | |
1273 | | REQUIRE term /* require Foo */ | |
1274 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1275 | TOKEN_GETMAD($1,$$,'o'); | |
1276 | } | |
3cd0a11a RGS |
1277 | | UNIOPSUB |
1278 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1279 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1280 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1281 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1282 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1283 | { $$ = newOP(IVAL($1), 0); |
1284 | TOKEN_GETMAD($1,$$,'o'); | |
1285 | } | |
ae986130 | 1286 | | FUNC0 '(' ')' |
f05e27e5 DM |
1287 | { $$ = newOP(IVAL($1), 0); |
1288 | TOKEN_GETMAD($1,$$,'o'); | |
1289 | TOKEN_GETMAD($2,$$,'('); | |
1290 | TOKEN_GETMAD($3,$$,')'); | |
1291 | } | |
891be019 | 1292 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1293 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1294 | scalar($1)); } |
891be019 | 1295 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1296 | { $$ = (IVAL($1) == OP_NOT) |
1297 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1298 | : newOP(IVAL($1), OPf_SPECIAL); | |
1299 | ||
1300 | TOKEN_GETMAD($1,$$,'o'); | |
1301 | TOKEN_GETMAD($2,$$,'('); | |
1302 | TOKEN_GETMAD($3,$$,')'); | |
1303 | } | |
891be019 | 1304 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1305 | { $$ = newUNOP(IVAL($1), 0, $3); |
1306 | TOKEN_GETMAD($1,$$,'o'); | |
1307 | TOKEN_GETMAD($2,$$,'('); | |
1308 | TOKEN_GETMAD($4,$$,')'); | |
1309 | } | |
1310 | | PMFUNC '(' argexpr ')' /* m//, s///, tr/// */ | |
1311 | { $$ = pmruntime($1, $3, 1); | |
1312 | TOKEN_GETMAD($2,$$,'('); | |
1313 | TOKEN_GETMAD($4,$$,')'); | |
1314 | } | |
79072805 | 1315 | | WORD |
378cc40b | 1316 | | listop |
be25f609 | 1317 | | YADAYADA |
1318 | { | |
1319 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1320 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1321 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1322 | } |
88e1f1a2 | 1323 | | PLUGEXPR |
8d063cd8 LW |
1324 | ; |
1325 | ||
891be019 | 1326 | /* "my" declarations, with optional attributes */ |
09bef843 | 1327 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1328 | { $$ = my_attrs($2,$3); |
1329 | DO_MAD( | |
1330 | token_getmad($1,$$,'d'); | |
1331 | append_madprops($3->op_madprop, $$, 'a'); | |
1332 | $3->op_madprop = 0; | |
1333 | ) | |
1334 | } | |
09bef843 | 1335 | | MY myterm |
f05e27e5 DM |
1336 | { $$ = localize($2,IVAL($1)); |
1337 | TOKEN_GETMAD($1,$$,'d'); | |
1338 | } | |
09bef843 SB |
1339 | ; |
1340 | ||
891be019 | 1341 | /* Things that can be "my"'d */ |
09bef843 | 1342 | myterm : '(' expr ')' |
f05e27e5 DM |
1343 | { $$ = sawparens($2); |
1344 | TOKEN_GETMAD($1,$$,'('); | |
1345 | TOKEN_GETMAD($3,$$,')'); | |
1346 | } | |
09bef843 | 1347 | | '(' ')' |
f05e27e5 DM |
1348 | { $$ = sawparens(newNULLLIST()); |
1349 | TOKEN_GETMAD($1,$$,'('); | |
1350 | TOKEN_GETMAD($2,$$,')'); | |
1351 | } | |
09bef843 SB |
1352 | | scalar %prec '(' |
1353 | { $$ = $1; } | |
1354 | | hsh %prec '(' | |
1355 | { $$ = $1; } | |
1356 | | ary %prec '(' | |
1357 | { $$ = $1; } | |
1358 | ; | |
1359 | ||
891be019 | 1360 | /* Basic list expressions */ |
fad39ff1 | 1361 | listexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1362 | { $$ = (OP*)NULL; } |
fad39ff1 | 1363 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
1364 | { $$ = $1; } |
1365 | ; | |
1366 | ||
1367 | listexprcom: /* NULL */ | |
bcabcc50 | 1368 | { $$ = (OP*)NULL; } |
79072805 LW |
1369 | | expr |
1370 | { $$ = $1; } | |
1371 | ; | |
1372 | ||
ea25a9b2 Z |
1373 | lpar_or_qw: '(' |
1374 | { $$ = $1; } | |
1375 | | QWLIST | |
f7e3d326 | 1376 | { munge_qwlist_to_paren_list($1); } |
ea25a9b2 Z |
1377 | '(' |
1378 | { $$ = $3; } | |
1379 | ; | |
1380 | ||
891be019 SC |
1381 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1382 | lexical */ | |
55497cff | 1383 | my_scalar: scalar |
12bd6ede | 1384 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1385 | ; |
1386 | ||
79072805 | 1387 | amper : '&' indirob |
f05e27e5 DM |
1388 | { $$ = newCVREF(IVAL($1),$2); |
1389 | TOKEN_GETMAD($1,$$,'&'); | |
1390 | } | |
a687059c LW |
1391 | ; |
1392 | ||
79072805 | 1393 | scalar : '$' indirob |
f05e27e5 DM |
1394 | { $$ = newSVREF($2); |
1395 | TOKEN_GETMAD($1,$$,'$'); | |
1396 | } | |
a687059c LW |
1397 | ; |
1398 | ||
79072805 | 1399 | ary : '@' indirob |
f05e27e5 DM |
1400 | { $$ = newAVREF($2); |
1401 | TOKEN_GETMAD($1,$$,'@'); | |
1402 | } | |
79072805 LW |
1403 | ; |
1404 | ||
1405 | hsh : '%' indirob | |
f05e27e5 DM |
1406 | { $$ = newHVREF($2); |
1407 | TOKEN_GETMAD($1,$$,'%'); | |
1408 | } | |
79072805 LW |
1409 | ; |
1410 | ||
1411 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1412 | { $$ = newAVREF($2); |
1413 | TOKEN_GETMAD($1,$$,'l'); | |
1414 | } | |
79072805 LW |
1415 | ; |
1416 | ||
1417 | star : '*' indirob | |
f05e27e5 DM |
1418 | { $$ = newGVREF(0,$2); |
1419 | TOKEN_GETMAD($1,$$,'*'); | |
1420 | } | |
79072805 LW |
1421 | ; |
1422 | ||
891be019 | 1423 | /* Indirect objects */ |
79072805 LW |
1424 | indirob : WORD |
1425 | { $$ = scalar($1); } | |
fad39ff1 | 1426 | | scalar %prec PREC_LOW |
f05e27e5 | 1427 | { $$ = scalar($1); } |
79072805 | 1428 | | block |
a0d0e21e | 1429 | { $$ = scope($1); } |
79072805 | 1430 | |
93a17b20 LW |
1431 | | PRIVATEREF |
1432 | { $$ = $1; } | |
8d063cd8 | 1433 | ; |