Commit | Line | Data |
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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
f05e27e5 | 3 | * Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall |
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 | ||
07ffcb73 | 92 | %type <ival> grammar closebrace_or_eof 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 | } | |
157 | lineseq closebrace_or_eof | |
158 | { | |
159 | PL_eval_root = $3; | |
160 | $$ = 0; | |
161 | } | |
162 | ; | |
163 | ||
164 | closebrace_or_eof: '}' | |
165 | { | |
166 | assert(parser->yychar == YYEMPTY); | |
167 | assert(parser->bufptr != SvPVX(parser->linestr)); | |
168 | assert(parser->bufptr[-1] == '}'); | |
169 | parser->bufptr--; | |
170 | parser->lex_brackstack[parser->lex_brackets++] = | |
171 | XSTATE; | |
172 | parser->expect = XSTATE; | |
173 | parser->yychar = YYEOF; | |
174 | $$ = 0; | |
175 | } | |
176 | | /* NULL */ | |
177 | { $$ = 0; } | |
28ac2b49 Z |
178 | ; |
179 | ||
891be019 | 180 | /* The whole program */ |
ecb2f335 | 181 | prog : progstart |
ae986130 | 182 | /*CONTINUED*/ lineseq |
ecb2f335 | 183 | { $$ = $1; newPROG(block_end($1,$2)); } |
8d063cd8 LW |
184 | ; |
185 | ||
891be019 | 186 | /* An ordinary block */ |
a687059c | 187 | block : '{' remember lineseq '}' |
53a7735b DM |
188 | { if (PL_parser->copline > (line_t)IVAL($1)) |
189 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
190 | $$ = block_end($2, $3); |
191 | TOKEN_GETMAD($1,$$,'{'); | |
192 | TOKEN_GETMAD($4,$$,'}'); | |
193 | } | |
a0d0e21e LW |
194 | ; |
195 | ||
55497cff | 196 | remember: /* NULL */ /* start a full lexical scope */ |
197 | { $$ = block_start(TRUE); } | |
198 | ; | |
199 | ||
0d863452 | 200 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 | 201 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 RH |
202 | ; |
203 | ||
ecb2f335 NIS |
204 | progstart: |
205 | { | |
53a7735b | 206 | PL_parser->expect = XSTATE; $$ = block_start(TRUE); |
ecb2f335 NIS |
207 | } |
208 | ; | |
209 | ||
210 | ||
bbce6d69 | 211 | mblock : '{' mremember lineseq '}' |
53a7735b DM |
212 | { if (PL_parser->copline > (line_t)IVAL($1)) |
213 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
214 | $$ = block_end($2, $3); |
215 | TOKEN_GETMAD($1,$$,'{'); | |
216 | TOKEN_GETMAD($4,$$,'}'); | |
217 | } | |
55497cff | 218 | ; |
219 | ||
220 | mremember: /* NULL */ /* start a partial lexical scope */ | |
221 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
222 | ; |
223 | ||
891be019 | 224 | /* A collection of "lines" in the program */ |
8d063cd8 | 225 | lineseq : /* NULL */ |
bcabcc50 | 226 | { $$ = (OP*)NULL; } |
79072805 | 227 | | lineseq decl |
f05e27e5 | 228 | { |
2fcb4757 | 229 | $$ = IF_MAD(op_append_list(OP_LINESEQ, $1, $2), $1); |
f05e27e5 | 230 | } |
503de470 | 231 | | lineseq line |
2fcb4757 | 232 | { $$ = op_append_list(OP_LINESEQ, $1, $2); |
3280af22 | 233 | PL_pad_reset_pending = TRUE; |
503de470 DM |
234 | if ($1 && $2) |
235 | PL_hints |= HINT_BLOCK_SCOPE; | |
236 | } | |
8d063cd8 LW |
237 | ; |
238 | ||
28ac2b49 Z |
239 | /* A statement, or "line", in the program */ |
240 | fullstmt: decl | |
241 | { $$ = $1; } | |
242 | | line | |
243 | { | |
244 | PL_pad_reset_pending = TRUE; | |
245 | $$ = $1; | |
246 | } | |
247 | ; | |
248 | ||
249 | /* A non-declaration statement */ | |
79072805 | 250 | line : label cond |
f05e27e5 DM |
251 | { $$ = newSTATEOP(0, PVAL($1), $2); |
252 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } | |
8d063cd8 | 253 | | loop /* loops add their own labels */ |
0d863452 RH |
254 | | switch /* ... and so do switches */ |
255 | { $$ = $1; } | |
256 | | label case | |
f05e27e5 | 257 | { $$ = newSTATEOP(0, PVAL($1), $2); } |
8d063cd8 | 258 | | label ';' |
f05e27e5 DM |
259 | { |
260 | if (PVAL($1)) { | |
261 | $$ = newSTATEOP(0, PVAL($1), newOP(OP_NULL, 0)); | |
262 | TOKEN_GETMAD($1,$$,'L'); | |
263 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first,';'); | |
264 | } | |
265 | else { | |
266 | $$ = IF_MAD( | |
267 | newOP(OP_NULL, 0), | |
bcabcc50 | 268 | (OP*)NULL); |
53a7735b | 269 | PL_parser->copline = NOLINE; |
f05e27e5 DM |
270 | TOKEN_FREE($1); |
271 | TOKEN_GETMAD($2,$$,';'); | |
272 | } | |
53a7735b | 273 | PL_parser->expect = XSTATE; |
f05e27e5 | 274 | } |
8d063cd8 | 275 | | label sideff ';' |
f05e27e5 DM |
276 | { |
277 | $$ = newSTATEOP(0, PVAL($1), $2); | |
53a7735b | 278 | PL_parser->expect = XSTATE; |
035e2bcc | 279 | DO_MAD({ |
f05e27e5 DM |
280 | /* sideff might already have a nexstate */ |
281 | OP* op = ((LISTOP*)$$)->op_first; | |
282 | if (op) { | |
283 | while (op->op_sibling && | |
284 | op->op_sibling->op_type == OP_NEXTSTATE) | |
285 | op = op->op_sibling; | |
286 | token_getmad($1,op,'L'); | |
287 | token_getmad($3,op,';'); | |
288 | } | |
035e2bcc | 289 | }) |
f05e27e5 | 290 | } |
4e4da3ac Z |
291 | | package_block |
292 | { $$ = newSTATEOP(0, NULL, | |
293 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, | |
294 | NOLINE, (OP*)NULL, $1, | |
702646f2 | 295 | (OP*)NULL, 0)); } |
88e1f1a2 JV |
296 | | label PLUGSTMT |
297 | { $$ = newSTATEOP(0, PVAL($1), $2); } | |
8d063cd8 LW |
298 | ; |
299 | ||
891be019 | 300 | /* An expression which may have a side-effect */ |
a687059c | 301 | sideff : error |
bcabcc50 | 302 | { $$ = (OP*)NULL; } |
a687059c | 303 | | expr |
79072805 | 304 | { $$ = $1; } |
a687059c | 305 | | expr IF expr |
f05e27e5 DM |
306 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
307 | TOKEN_GETMAD($2,$$,'i'); | |
308 | } | |
a687059c | 309 | | expr UNLESS expr |
f05e27e5 DM |
310 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
311 | TOKEN_GETMAD($2,$$,'i'); | |
312 | } | |
a687059c | 313 | | expr WHILE expr |
f05e27e5 DM |
314 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
315 | TOKEN_GETMAD($2,$$,'w'); | |
316 | } | |
55497cff | 317 | | expr UNTIL iexpr |
f05e27e5 DM |
318 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
319 | TOKEN_GETMAD($2,$$,'w'); | |
320 | } | |
ecca16b0 | 321 | | expr FOR expr |
1a9a51d4 | 322 | { $$ = newFOROP(0, NULL, (line_t)IVAL($2), |
bcabcc50 | 323 | (OP*)NULL, $3, $1, (OP*)NULL); |
f05e27e5 DM |
324 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first->op_sibling,'w'); |
325 | } | |
f20dcd76 VP |
326 | | expr WHEN expr |
327 | { $$ = newWHENOP($3, scope($1)); } | |
79072805 LW |
328 | ; |
329 | ||
891be019 | 330 | /* else and elsif blocks */ |
79072805 | 331 | else : /* NULL */ |
bcabcc50 | 332 | { $$ = (OP*)NULL; } |
55497cff | 333 | | ELSE mblock |
f05e27e5 DM |
334 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); |
335 | TOKEN_GETMAD($1,$$,'o'); | |
336 | } | |
ea25a9b2 | 337 | | ELSIF lpar_or_qw mexpr ')' mblock else |
53a7735b | 338 | { PL_parser->copline = (line_t)IVAL($1); |
f6f3a1fe | 339 | $$ = newCONDOP(0, newSTATEOP(OPf_SPECIAL,NULL,$3), scope($5), $6); |
f05e27e5 DM |
340 | PL_hints |= HINT_BLOCK_SCOPE; |
341 | TOKEN_GETMAD($1,$$,'I'); | |
342 | TOKEN_GETMAD($2,$$,'('); | |
343 | TOKEN_GETMAD($4,$$,')'); | |
344 | } | |
79072805 LW |
345 | ; |
346 | ||
891be019 | 347 | /* Real conditional expressions */ |
ea25a9b2 | 348 | cond : IF lpar_or_qw remember mexpr ')' mblock else |
53a7735b | 349 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 350 | $$ = block_end($3, |
f05e27e5 DM |
351 | newCONDOP(0, $4, scope($6), $7)); |
352 | TOKEN_GETMAD($1,$$,'I'); | |
353 | TOKEN_GETMAD($2,$$,'('); | |
354 | TOKEN_GETMAD($5,$$,')'); | |
355 | } | |
ea25a9b2 | 356 | | UNLESS lpar_or_qw remember miexpr ')' mblock else |
53a7735b | 357 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 358 | $$ = block_end($3, |
f05e27e5 DM |
359 | newCONDOP(0, $4, scope($6), $7)); |
360 | TOKEN_GETMAD($1,$$,'I'); | |
361 | TOKEN_GETMAD($2,$$,'('); | |
362 | TOKEN_GETMAD($5,$$,')'); | |
363 | } | |
79072805 LW |
364 | ; |
365 | ||
0d863452 | 366 | /* Cases for a switch statement */ |
ea25a9b2 | 367 | case : WHEN lpar_or_qw remember mexpr ')' mblock |
0d863452 RH |
368 | { $$ = block_end($3, |
369 | newWHENOP($4, scope($6))); } | |
370 | | DEFAULT block | |
371 | { $$ = newWHENOP(0, scope($2)); } | |
372 | ; | |
373 | ||
891be019 | 374 | /* Continue blocks */ |
79072805 | 375 | cont : /* NULL */ |
bcabcc50 | 376 | { $$ = (OP*)NULL; } |
79072805 | 377 | | CONTINUE block |
f05e27e5 DM |
378 | { $$ = scope($2); |
379 | TOKEN_GETMAD($1,$$,'o'); | |
380 | } | |
79072805 LW |
381 | ; |
382 | ||
891be019 | 383 | /* Loops: while, until, for, and a bare block */ |
ea25a9b2 | 384 | loop : label WHILE lpar_or_qw remember texpr ')' mintro mblock cont |
f05e27e5 | 385 | { OP *innerop; |
5ca68648 | 386 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 | 387 | $$ = block_end($4, |
f05e27e5 | 388 | newSTATEOP(0, PVAL($1), |
bcabcc50 | 389 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 DM |
390 | IVAL($2), $5, $8, $9, $7))); |
391 | TOKEN_GETMAD($1,innerop,'L'); | |
392 | TOKEN_GETMAD($2,innerop,'W'); | |
393 | TOKEN_GETMAD($3,innerop,'('); | |
394 | TOKEN_GETMAD($6,innerop,')'); | |
395 | } | |
396 | ||
ea25a9b2 | 397 | | label UNTIL lpar_or_qw remember iexpr ')' mintro mblock cont |
f05e27e5 | 398 | { OP *innerop; |
5ca68648 | 399 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 | 400 | $$ = block_end($4, |
f05e27e5 | 401 | newSTATEOP(0, PVAL($1), |
bcabcc50 | 402 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 DM |
403 | IVAL($2), $5, $8, $9, $7))); |
404 | TOKEN_GETMAD($1,innerop,'L'); | |
405 | TOKEN_GETMAD($2,innerop,'W'); | |
406 | TOKEN_GETMAD($3,innerop,'('); | |
407 | TOKEN_GETMAD($6,innerop,')'); | |
408 | } | |
ea25a9b2 | 409 | | label FOR MY remember my_scalar lpar_or_qw mexpr ')' mblock cont |
f05e27e5 DM |
410 | { OP *innerop; |
411 | $$ = block_end($4, | |
412 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
413 | $5, $7, $9, $10)); | |
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,'d'); | |
417 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
418 | TOKEN_GETMAD($8,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
419 | } | |
ea25a9b2 | 420 | | label FOR scalar lpar_or_qw remember mexpr ')' mblock cont |
f05e27e5 DM |
421 | { OP *innerop; |
422 | $$ = block_end($5, | |
423 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
424 | mod($3, OP_ENTERLOOP), $6, $8, $9)); | |
425 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
426 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
427 | TOKEN_GETMAD($4,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
428 | TOKEN_GETMAD($7,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
429 | } | |
ea25a9b2 | 430 | | label FOR lpar_or_qw remember mexpr ')' mblock cont |
f05e27e5 DM |
431 | { OP *innerop; |
432 | $$ = block_end($4, | |
433 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
bcabcc50 | 434 | (OP*)NULL, $5, $7, $8)); |
f05e27e5 DM |
435 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); |
436 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
437 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
438 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
439 | } | |
ea25a9b2 | 440 | | label FOR lpar_or_qw remember mnexpr ';' texpr ';' mintro mnexpr ')' |
a034e688 | 441 | mblock |
8d063cd8 | 442 | /* basically fake up an initialize-while lineseq */ |
36c66720 | 443 | { OP *forop; |
53a7735b | 444 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 445 | forop = newSTATEOP(0, PVAL($1), |
bcabcc50 | 446 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 | 447 | IVAL($2), scalar($7), |
a034e688 | 448 | $12, $10, $9)); |
f05e27e5 | 449 | #ifdef MAD |
2fcb4757 | 450 | forop = newUNOP(OP_NULL, 0, op_append_elem(OP_LINESEQ, |
f05e27e5 | 451 | newSTATEOP(0, |
63031daf | 452 | CopLABEL_alloc(($1)->tk_lval.pval), |
700f8fa5 | 453 | ($5 ? $5 : newOP(OP_NULL, 0)) ), |
f05e27e5 DM |
454 | forop)); |
455 | ||
456 | token_getmad($2,forop,'3'); | |
457 | token_getmad($3,forop,'('); | |
458 | token_getmad($6,forop,'1'); | |
459 | token_getmad($8,forop,'2'); | |
460 | token_getmad($11,forop,')'); | |
461 | token_getmad($1,forop,'L'); | |
462 | #else | |
36c66720 | 463 | if ($5) { |
2fcb4757 | 464 | forop = op_append_elem(OP_LINESEQ, |
63031daf | 465 | newSTATEOP(0, CopLABEL_alloc($1), $5), |
36c66720 RH |
466 | forop); |
467 | } | |
468 | ||
f05e27e5 DM |
469 | |
470 | #endif | |
36c66720 | 471 | $$ = block_end($4, forop); } |
79072805 | 472 | | label block cont /* a block is a loop that happens once */ |
f05e27e5 | 473 | { $$ = newSTATEOP(0, PVAL($1), |
bcabcc50 NC |
474 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
475 | NOLINE, (OP*)NULL, $2, $3, 0)); | |
f05e27e5 | 476 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } |
8d063cd8 LW |
477 | ; |
478 | ||
0d863452 | 479 | /* Switch blocks */ |
ea25a9b2 | 480 | switch : label GIVEN lpar_or_qw remember mydefsv mexpr ')' mblock |
5ca68648 | 481 | { PL_parser->copline = (line_t) IVAL($2); |
0d863452 | 482 | $$ = block_end($4, |
f05e27e5 | 483 | newSTATEOP(0, PVAL($1), |
0d863452 RH |
484 | newGIVENOP($6, scope($8), |
485 | (PADOFFSET) $5) )); } | |
486 | ; | |
487 | ||
a034e688 DM |
488 | /* determine whether there are any new my declarations */ |
489 | mintro : /* NULL */ | |
490 | { $$ = (PL_min_intro_pending && | |
491 | PL_max_intro_pending >= PL_min_intro_pending); | |
492 | intro_my(); } | |
493 | ||
891be019 | 494 | /* Normal expression */ |
8d063cd8 | 495 | nexpr : /* NULL */ |
bcabcc50 | 496 | { $$ = (OP*)NULL; } |
8d063cd8 LW |
497 | | sideff |
498 | ; | |
499 | ||
891be019 | 500 | /* Boolean expression */ |
8d063cd8 | 501 | texpr : /* NULL means true */ |
f05e27e5 DM |
502 | { YYSTYPE tmplval; |
503 | (void)scan_num("1", &tmplval); | |
504 | $$ = tmplval.opval; } | |
8d063cd8 LW |
505 | | expr |
506 | ; | |
507 | ||
891be019 | 508 | /* Inverted boolean expression */ |
55497cff | 509 | iexpr : expr |
510 | { $$ = invert(scalar($1)); } | |
511 | ; | |
512 | ||
891be019 | 513 | /* Expression with its own lexical scope */ |
55497cff | 514 | mexpr : expr |
bbce6d69 | 515 | { $$ = $1; intro_my(); } |
516 | ; | |
517 | ||
518 | mnexpr : nexpr | |
519 | { $$ = $1; intro_my(); } | |
55497cff | 520 | ; |
521 | ||
55497cff | 522 | miexpr : iexpr |
bbce6d69 | 523 | { $$ = $1; intro_my(); } |
55497cff | 524 | ; |
525 | ||
891be019 | 526 | /* Optional "MAIN:"-style loop labels */ |
8d063cd8 | 527 | label : /* empty */ |
f05e27e5 DM |
528 | { |
529 | #ifdef MAD | |
530 | YYSTYPE tmplval; | |
1a9a51d4 | 531 | tmplval.pval = NULL; |
f05e27e5 DM |
532 | $$ = newTOKEN(OP_NULL, tmplval, 0); |
533 | #else | |
1a9a51d4 | 534 | $$ = NULL; |
f05e27e5 DM |
535 | #endif |
536 | } | |
32c2e4fb | 537 | | LABEL |
8d063cd8 LW |
538 | ; |
539 | ||
f05e27e5 | 540 | /* Some kind of declaration - just hang on peg in the parse tree */ |
8d063cd8 | 541 | decl : format |
f05e27e5 | 542 | { $$ = $1; } |
8d063cd8 | 543 | | subrout |
f05e27e5 | 544 | { $$ = $1; } |
09bef843 | 545 | | mysubrout |
f05e27e5 | 546 | { $$ = $1; } |
a687059c | 547 | | package |
f05e27e5 | 548 | { $$ = $1; } |
a0d0e21e | 549 | | use |
f05e27e5 DM |
550 | { $$ = $1; } |
551 | ||
552 | /* these two are only used by MAD */ | |
553 | ||
554 | | peg | |
555 | { $$ = $1; } | |
556 | ; | |
557 | ||
558 | peg : PEG | |
559 | { $$ = newOP(OP_NULL,0); | |
560 | TOKEN_GETMAD($1,$$,'p'); | |
561 | } | |
8d063cd8 LW |
562 | ; |
563 | ||
718a7425 | 564 | format : FORMAT startformsub formname block |
421f30ed Z |
565 | { |
566 | CV *fmtcv = PL_compcv; | |
567 | SvREFCNT_inc_simple_void(PL_compcv); | |
f05e27e5 | 568 | #ifdef MAD |
718a7425 | 569 | $$ = newFORM($2, $3, $4); |
f05e27e5 DM |
570 | prepend_madprops($1->tk_mad, $$, 'F'); |
571 | $1->tk_mad = 0; | |
572 | token_free($1); | |
573 | #else | |
718a7425 | 574 | newFORM($2, $3, $4); |
bcabcc50 | 575 | $$ = (OP*)NULL; |
f05e27e5 | 576 | #endif |
421f30ed Z |
577 | if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) { |
578 | SvREFCNT_inc_simple_void(fmtcv); | |
579 | pad_add_anon((SV*)fmtcv, OP_NULL); | |
580 | } | |
f05e27e5 | 581 | } |
44a8e56a | 582 | ; |
583 | ||
584 | formname: WORD { $$ = $1; } | |
bcabcc50 | 585 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 LW |
586 | ; |
587 | ||
891be019 | 588 | /* Unimplemented "my sub foo { }" */ |
718a7425 | 589 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
5a5094bd | 590 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 591 | #ifdef MAD |
718a7425 | 592 | $$ = newMYSUB($2, $3, $4, $5, $6); |
f05e27e5 DM |
593 | token_getmad($1,$$,'d'); |
594 | #else | |
718a7425 | 595 | newMYSUB($2, $3, $4, $5, $6); |
bcabcc50 | 596 | $$ = (OP*)NULL; |
f05e27e5 DM |
597 | #endif |
598 | } | |
09bef843 SB |
599 | ; |
600 | ||
891be019 | 601 | /* Subroutine definition */ |
718a7425 | 602 | subrout : SUB startsub subname proto subattrlist subbody |
5a5094bd | 603 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 604 | #ifdef MAD |
035e2bcc DM |
605 | { |
606 | OP* o = newSVOP(OP_ANONCODE, 0, | |
607 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
608 | $$ = newOP(OP_NULL,0); | |
609 | op_getmad(o,$$,'&'); | |
610 | op_getmad($3,$$,'n'); | |
611 | op_getmad($4,$$,'s'); | |
612 | op_getmad($5,$$,'a'); | |
613 | token_getmad($1,$$,'d'); | |
614 | append_madprops($6->op_madprop, $$, 0); | |
615 | $6->op_madprop = 0; | |
616 | } | |
f05e27e5 | 617 | #else |
718a7425 | 618 | newATTRSUB($2, $3, $4, $5, $6); |
bcabcc50 | 619 | $$ = (OP*)NULL; |
f05e27e5 DM |
620 | #endif |
621 | } | |
28757baa | 622 | ; |
623 | ||
fa83b5b6 | 624 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
625 | { $$ = start_subparse(FALSE, 0); |
626 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 627 | |
28757baa | 628 | ; |
629 | ||
630 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
631 | { $$ = start_subparse(FALSE, CVf_ANON); |
632 | SAVEFREESV(PL_compcv); } | |
28757baa | 633 | ; |
634 | ||
44a8e56a | 635 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
636 | { $$ = start_subparse(TRUE, 0); |
637 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 638 | ; |
639 | ||
891be019 | 640 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 641 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 642 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
643 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
644 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 645 | CvSPECIAL_on(PL_compcv); |
28757baa | 646 | $$ = $1; } |
a0d0e21e LW |
647 | ; |
648 | ||
891be019 | 649 | /* Subroutine prototype */ |
4633a7c4 | 650 | proto : /* NULL */ |
bcabcc50 | 651 | { $$ = (OP*)NULL; } |
4633a7c4 LW |
652 | | THING |
653 | ; | |
28757baa | 654 | |
891be019 | 655 | /* Optional list of subroutine attributes */ |
09bef843 | 656 | subattrlist: /* NULL */ |
bcabcc50 | 657 | { $$ = (OP*)NULL; } |
09bef843 | 658 | | COLONATTR THING |
f05e27e5 DM |
659 | { $$ = $2; |
660 | TOKEN_GETMAD($1,$$,':'); | |
661 | } | |
09bef843 | 662 | | COLONATTR |
f05e27e5 DM |
663 | { $$ = IF_MAD( |
664 | newOP(OP_NULL, 0), | |
bcabcc50 | 665 | (OP*)NULL |
f05e27e5 DM |
666 | ); |
667 | TOKEN_GETMAD($1,$$,':'); | |
668 | } | |
09bef843 SB |
669 | ; |
670 | ||
891be019 | 671 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 672 | myattrlist: COLONATTR THING |
f05e27e5 DM |
673 | { $$ = $2; |
674 | TOKEN_GETMAD($1,$$,':'); | |
675 | } | |
09bef843 | 676 | | COLONATTR |
f05e27e5 DM |
677 | { $$ = IF_MAD( |
678 | newOP(OP_NULL, 0), | |
bcabcc50 | 679 | (OP*)NULL |
f05e27e5 DM |
680 | ); |
681 | TOKEN_GETMAD($1,$$,':'); | |
682 | } | |
09bef843 SB |
683 | ; |
684 | ||
891be019 | 685 | /* Subroutine body - either null or a block */ |
28757baa | 686 | subbody : block { $$ = $1; } |
f05e27e5 DM |
687 | | ';' { $$ = IF_MAD( |
688 | newOP(OP_NULL,0), | |
bcabcc50 | 689 | (OP*)NULL |
f05e27e5 | 690 | ); |
53a7735b | 691 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
692 | TOKEN_GETMAD($1,$$,';'); |
693 | } | |
8d063cd8 LW |
694 | ; |
695 | ||
6fa4d285 | 696 | package : PACKAGE WORD WORD ';' |
f05e27e5 DM |
697 | { |
698 | #ifdef MAD | |
0f811330 RGS |
699 | $$ = package($3); |
700 | token_getmad($1,$$,'o'); | |
701 | if ($2) | |
702 | package_version($2); | |
703 | token_getmad($4,$$,';'); | |
f05e27e5 | 704 | #else |
6fa4d285 | 705 | package($3); |
0f811330 RGS |
706 | if ($2) |
707 | package_version($2); | |
bcabcc50 | 708 | $$ = (OP*)NULL; |
0f811330 | 709 | #endif |
f05e27e5 | 710 | } |
a687059c LW |
711 | ; |
712 | ||
4e4da3ac Z |
713 | package_block: PACKAGE WORD WORD '{' remember |
714 | { | |
af5050ac Z |
715 | int save_3_latefree = $3->op_latefree; |
716 | $3->op_latefree = 1; | |
4e4da3ac | 717 | package($3); |
af5050ac Z |
718 | $3->op_latefree = save_3_latefree; |
719 | if ($2) { | |
720 | int save_2_latefree = $2->op_latefree; | |
721 | $2->op_latefree = 1; | |
4e4da3ac | 722 | package_version($2); |
af5050ac Z |
723 | $2->op_latefree = save_2_latefree; |
724 | } | |
4e4da3ac Z |
725 | } |
726 | lineseq '}' | |
727 | { if (PL_parser->copline > (line_t)IVAL($4)) | |
728 | PL_parser->copline = (line_t)IVAL($4); | |
729 | $$ = block_end($5, $7); | |
730 | TOKEN_GETMAD($4,$$,'{'); | |
731 | TOKEN_GETMAD($8,$$,'}'); | |
af5050ac Z |
732 | op_free($3); |
733 | if ($2) | |
734 | op_free($2); | |
4e4da3ac Z |
735 | } |
736 | ; | |
737 | ||
718a7425 | 738 | use : USE startsub |
1aff0e91 | 739 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 740 | WORD WORD listexpr ';' |
5a5094bd | 741 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 742 | #ifdef MAD |
718a7425 | 743 | $$ = utilize(IVAL($1), $2, $4, $5, $6); |
f05e27e5 | 744 | token_getmad($1,$$,'o'); |
718a7425 | 745 | token_getmad($7,$$,';'); |
5486870f DM |
746 | if (PL_parser->rsfp_filters && |
747 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
a22f28a4 | 748 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); |
f05e27e5 | 749 | #else |
718a7425 | 750 | utilize(IVAL($1), $2, $4, $5, $6); |
bcabcc50 | 751 | $$ = (OP*)NULL; |
f05e27e5 DM |
752 | #endif |
753 | } | |
85e6fe83 LW |
754 | ; |
755 | ||
891be019 | 756 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 757 | expr : expr ANDOP expr |
f05e27e5 DM |
758 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
759 | TOKEN_GETMAD($2,$$,'o'); | |
760 | } | |
a0d0e21e | 761 | | expr OROP expr |
f05e27e5 DM |
762 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
763 | TOKEN_GETMAD($2,$$,'o'); | |
764 | } | |
c963b151 | 765 | | expr DOROP expr |
f05e27e5 DM |
766 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
767 | TOKEN_GETMAD($2,$$,'o'); | |
768 | } | |
fad39ff1 | 769 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
770 | ; |
771 | ||
891be019 | 772 | /* Expressions are a list of terms joined by commas */ |
a0d0e21e | 773 | argexpr : argexpr ',' |
f05e27e5 DM |
774 | { |
775 | #ifdef MAD | |
776 | OP* op = newNULLLIST(); | |
777 | token_getmad($2,op,','); | |
2fcb4757 | 778 | $$ = op_append_elem(OP_LIST, $1, op); |
f05e27e5 DM |
779 | #else |
780 | $$ = $1; | |
781 | #endif | |
782 | } | |
a0d0e21e | 783 | | argexpr ',' term |
f05e27e5 | 784 | { |
29522234 | 785 | OP* term = $3; |
f05e27e5 | 786 | DO_MAD( |
29522234 DM |
787 | term = newUNOP(OP_NULL, 0, term); |
788 | token_getmad($2,term,','); | |
f05e27e5 | 789 | ) |
2fcb4757 | 790 | $$ = op_append_elem(OP_LIST, $1, term); |
f05e27e5 | 791 | } |
fad39ff1 | 792 | | term %prec PREC_LOW |
8d063cd8 LW |
793 | ; |
794 | ||
891be019 | 795 | /* List operators */ |
ad4673e5 | 796 | listop : LSTOP indirob argexpr /* map {...} @args or print $fh @args */ |
f05e27e5 | 797 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 798 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
f05e27e5 DM |
799 | TOKEN_GETMAD($1,$$,'o'); |
800 | } | |
891be019 | 801 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 | 802 | { $$ = convert(IVAL($1), OPf_STACKED, |
2fcb4757 | 803 | op_prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
f05e27e5 DM |
804 | TOKEN_GETMAD($1,$$,'o'); |
805 | TOKEN_GETMAD($2,$$,'('); | |
806 | TOKEN_GETMAD($5,$$,')'); | |
807 | } | |
ea25a9b2 | 808 | | term ARROW method lpar_or_qw listexprcom ')' /* $foo->bar(list) */ |
4633a7c4 | 809 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
810 | op_append_elem(OP_LIST, |
811 | op_prepend_elem(OP_LIST, scalar($1), $5), | |
f05e27e5 DM |
812 | newUNOP(OP_METHOD, 0, $3))); |
813 | TOKEN_GETMAD($2,$$,'A'); | |
814 | TOKEN_GETMAD($4,$$,'('); | |
815 | TOKEN_GETMAD($6,$$,')'); | |
816 | } | |
891be019 | 817 | | term ARROW method /* $foo->bar */ |
b1524f17 | 818 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 819 | op_append_elem(OP_LIST, scalar($1), |
f05e27e5 DM |
820 | newUNOP(OP_METHOD, 0, $3))); |
821 | TOKEN_GETMAD($2,$$,'A'); | |
822 | } | |
891be019 | 823 | | METHOD indirob listexpr /* new Class @args */ |
4633a7c4 | 824 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
825 | op_append_elem(OP_LIST, |
826 | op_prepend_elem(OP_LIST, $2, $3), | |
f05e27e5 DM |
827 | newUNOP(OP_METHOD, 0, $1))); |
828 | } | |
891be019 | 829 | | FUNCMETH indirob '(' listexprcom ')' /* method $object (@args) */ |
4633a7c4 | 830 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
831 | op_append_elem(OP_LIST, |
832 | op_prepend_elem(OP_LIST, $2, $4), | |
f05e27e5 DM |
833 | newUNOP(OP_METHOD, 0, $1))); |
834 | TOKEN_GETMAD($3,$$,'('); | |
835 | TOKEN_GETMAD($5,$$,')'); | |
836 | } | |
891be019 | 837 | | LSTOP listexpr /* print @args */ |
f05e27e5 DM |
838 | { $$ = convert(IVAL($1), 0, $2); |
839 | TOKEN_GETMAD($1,$$,'o'); | |
840 | } | |
891be019 | 841 | | FUNC '(' listexprcom ')' /* print (@args) */ |
f05e27e5 DM |
842 | { $$ = convert(IVAL($1), 0, $3); |
843 | TOKEN_GETMAD($1,$$,'o'); | |
844 | TOKEN_GETMAD($2,$$,'('); | |
845 | TOKEN_GETMAD($4,$$,')'); | |
846 | } | |
718a7425 | 847 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 848 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 | 849 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
891be019 | 850 | listexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 851 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 Z |
852 | op_append_elem(OP_LIST, |
853 | op_prepend_elem(OP_LIST, $<opval>4, $5), $1)); | |
f05e27e5 | 854 | } |
a687059c LW |
855 | ; |
856 | ||
891be019 | 857 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
858 | method : METHOD |
859 | | scalar | |
860 | ; | |
861 | ||
891be019 SC |
862 | /* Some kind of subscripted expression */ |
863 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
864 | /* In this and all the hash accessors, ';' is | |
865 | * provided by the tokeniser */ | |
264e1af3 | 866 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 867 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
868 | TOKEN_GETMAD($2,$$,'{'); |
869 | TOKEN_GETMAD($4,$$,';'); | |
870 | TOKEN_GETMAD($5,$$,'}'); | |
871 | } | |
891be019 | 872 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
873 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
874 | TOKEN_GETMAD($2,$$,'['); | |
875 | TOKEN_GETMAD($4,$$,']'); | |
876 | } | |
891be019 | 877 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
878 | { $$ = newBINOP(OP_AELEM, 0, |
879 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
880 | scalar($4)); |
881 | TOKEN_GETMAD($2,$$,'a'); | |
882 | TOKEN_GETMAD($3,$$,'['); | |
883 | TOKEN_GETMAD($5,$$,']'); | |
884 | } | |
891be019 | 885 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
886 | { $$ = newBINOP(OP_AELEM, 0, |
887 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
888 | scalar($3)); |
889 | TOKEN_GETMAD($2,$$,'['); | |
890 | TOKEN_GETMAD($4,$$,']'); | |
891 | } | |
891be019 | 892 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 | 893 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 894 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
895 | TOKEN_GETMAD($2,$$,'{'); |
896 | TOKEN_GETMAD($4,$$,';'); | |
897 | TOKEN_GETMAD($5,$$,'}'); | |
898 | } | |
891be019 | 899 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
900 | { $$ = newBINOP(OP_HELEM, 0, |
901 | ref(newHVREF($1),OP_RV2HV), | |
902 | jmaybe($4)); | |
53a7735b | 903 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
904 | TOKEN_GETMAD($2,$$,'a'); |
905 | TOKEN_GETMAD($3,$$,'{'); | |
906 | TOKEN_GETMAD($5,$$,';'); | |
907 | TOKEN_GETMAD($6,$$,'}'); | |
908 | } | |
891be019 | 909 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
910 | { $$ = newBINOP(OP_HELEM, 0, |
911 | ref(newHVREF($1),OP_RV2HV), | |
912 | jmaybe($3)); | |
53a7735b | 913 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
914 | TOKEN_GETMAD($2,$$,'{'); |
915 | TOKEN_GETMAD($4,$$,';'); | |
916 | TOKEN_GETMAD($5,$$,'}'); | |
917 | } | |
891be019 | 918 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 919 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
920 | newCVREF(0, scalar($1))); |
921 | TOKEN_GETMAD($2,$$,'a'); | |
922 | TOKEN_GETMAD($3,$$,'('); | |
923 | TOKEN_GETMAD($4,$$,')'); | |
924 | } | |
891be019 | 925 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 | 926 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 927 | op_append_elem(OP_LIST, $4, |
f05e27e5 DM |
928 | newCVREF(0, scalar($1)))); |
929 | TOKEN_GETMAD($2,$$,'a'); | |
930 | TOKEN_GETMAD($3,$$,'('); | |
931 | TOKEN_GETMAD($5,$$,')'); | |
932 | } | |
fad39ff1 | 933 | |
ea25a9b2 | 934 | | subscripted lpar_or_qw expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 | 935 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 936 | op_append_elem(OP_LIST, $3, |
f05e27e5 DM |
937 | newCVREF(0, scalar($1)))); |
938 | TOKEN_GETMAD($2,$$,'('); | |
939 | TOKEN_GETMAD($4,$$,')'); | |
940 | } | |
ea25a9b2 | 941 | | subscripted lpar_or_qw ')' /* $foo->{bar}->() */ |
fad39ff1 | 942 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
943 | newCVREF(0, scalar($1))); |
944 | TOKEN_GETMAD($2,$$,'('); | |
945 | TOKEN_GETMAD($3,$$,')'); | |
946 | } | |
9a9798c2 | 947 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
948 | { $$ = newSLICEOP(0, $5, $2); |
949 | TOKEN_GETMAD($1,$$,'('); | |
950 | TOKEN_GETMAD($3,$$,')'); | |
951 | TOKEN_GETMAD($4,$$,'['); | |
952 | TOKEN_GETMAD($6,$$,']'); | |
953 | } | |
ea25a9b2 Z |
954 | | QWLIST '[' expr ']' /* list literal slice */ |
955 | { $$ = newSLICEOP(0, $3, $1); | |
956 | TOKEN_GETMAD($2,$$,'['); | |
957 | TOKEN_GETMAD($4,$$,']'); | |
958 | } | |
9a9798c2 | 959 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 | 960 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 DM |
961 | TOKEN_GETMAD($1,$$,'('); |
962 | TOKEN_GETMAD($2,$$,')'); | |
963 | TOKEN_GETMAD($3,$$,'['); | |
964 | TOKEN_GETMAD($5,$$,']'); | |
965 | } | |
891be019 | 966 | ; |
fad39ff1 | 967 | |
891be019 | 968 | /* Binary operators between terms */ |
f05e27e5 DM |
969 | termbinop: term ASSIGNOP term /* $x = $y */ |
970 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
971 | TOKEN_GETMAD($2,$$,'o'); | |
972 | } | |
891be019 | 973 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
974 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
975 | TOKEN_GETMAD($2,$$,'o'); | |
976 | } | |
891be019 | 977 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 978 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 979 | scalar($1); |
f05e27e5 DM |
980 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
981 | TOKEN_GETMAD($2,$$,'o'); | |
982 | } | |
891be019 | 983 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
984 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
985 | TOKEN_GETMAD($2,$$,'o'); | |
986 | } | |
891be019 | 987 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
988 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
989 | TOKEN_GETMAD($2,$$,'o'); | |
990 | } | |
891be019 | 991 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
992 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
993 | TOKEN_GETMAD($2,$$,'o'); | |
994 | } | |
891be019 | 995 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
996 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
997 | TOKEN_GETMAD($2,$$,'o'); | |
998 | } | |
891be019 | 999 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
1000 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1001 | TOKEN_GETMAD($2,$$,'o'); | |
1002 | } | |
891be019 | 1003 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
1004 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
1005 | TOKEN_GETMAD($2,$$,'o'); | |
1006 | } | |
891be019 | 1007 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
1008 | { |
1009 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 1010 | DO_MAD({ |
f05e27e5 DM |
1011 | UNOP *op; |
1012 | op = (UNOP*)$$; | |
1013 | op = (UNOP*)op->op_first; /* get to flop */ | |
1014 | op = (UNOP*)op->op_first; /* get to flip */ | |
1015 | op = (UNOP*)op->op_first; /* get to range */ | |
1016 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 1017 | }) |
f05e27e5 | 1018 | } |
891be019 | 1019 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
1020 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
1021 | TOKEN_GETMAD($2,$$,'o'); | |
1022 | } | |
891be019 | 1023 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
1024 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
1025 | TOKEN_GETMAD($2,$$,'o'); | |
1026 | } | |
c963b151 | 1027 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
1028 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
1029 | TOKEN_GETMAD($2,$$,'o'); | |
1030 | } | |
891be019 | 1031 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
1032 | { $$ = bind_match(IVAL($2), $1, $3); |
1033 | TOKEN_GETMAD($2, | |
1034 | ($$->op_type == OP_NOT | |
1035 | ? ((UNOP*)$$)->op_first : $$), | |
1036 | '~'); | |
1037 | } | |
891be019 | 1038 | ; |
8d063cd8 | 1039 | |
891be019 SC |
1040 | /* Unary operators and terms */ |
1041 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
1042 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
1043 | TOKEN_GETMAD($1,$$,'o'); | |
1044 | } | |
891be019 | 1045 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
1046 | { $$ = IF_MAD( |
1047 | newUNOP(OP_NULL, 0, $2), | |
1048 | $2 | |
1049 | ); | |
1050 | TOKEN_GETMAD($1,$$,'+'); | |
1051 | } | |
891be019 | 1052 | | '!' term /* !$x */ |
f05e27e5 DM |
1053 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1054 | TOKEN_GETMAD($1,$$,'o'); | |
1055 | } | |
891be019 | 1056 | | '~' term /* ~$x */ |
f05e27e5 DM |
1057 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1058 | TOKEN_GETMAD($1,$$,'o'); | |
1059 | } | |
891be019 | 1060 | | term POSTINC /* $x++ */ |
79072805 | 1061 | { $$ = newUNOP(OP_POSTINC, 0, |
f05e27e5 DM |
1062 | mod(scalar($1), OP_POSTINC)); |
1063 | TOKEN_GETMAD($2,$$,'o'); | |
1064 | } | |
891be019 | 1065 | | term POSTDEC /* $x-- */ |
79072805 | 1066 | { $$ = newUNOP(OP_POSTDEC, 0, |
f05e27e5 DM |
1067 | mod(scalar($1), OP_POSTDEC)); |
1068 | TOKEN_GETMAD($2,$$,'o'); | |
1069 | } | |
891be019 | 1070 | | PREINC term /* ++$x */ |
79072805 | 1071 | { $$ = newUNOP(OP_PREINC, 0, |
f05e27e5 DM |
1072 | mod(scalar($2), OP_PREINC)); |
1073 | TOKEN_GETMAD($1,$$,'o'); | |
1074 | } | |
891be019 | 1075 | | PREDEC term /* --$x */ |
79072805 | 1076 | { $$ = newUNOP(OP_PREDEC, 0, |
f05e27e5 DM |
1077 | mod(scalar($2), OP_PREDEC)); |
1078 | TOKEN_GETMAD($1,$$,'o'); | |
1079 | } | |
891be019 SC |
1080 | |
1081 | ; | |
1082 | ||
1083 | /* Constructors for anonymous data */ | |
1084 | anonymous: '[' expr ']' | |
f05e27e5 DM |
1085 | { $$ = newANONLIST($2); |
1086 | TOKEN_GETMAD($1,$$,'['); | |
1087 | TOKEN_GETMAD($3,$$,']'); | |
1088 | } | |
891be019 | 1089 | | '[' ']' |
bcabcc50 | 1090 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 DM |
1091 | TOKEN_GETMAD($1,$$,'['); |
1092 | TOKEN_GETMAD($2,$$,']'); | |
1093 | } | |
891be019 | 1094 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
1095 | { $$ = newANONHASH($2); |
1096 | TOKEN_GETMAD($1,$$,'{'); | |
1097 | TOKEN_GETMAD($3,$$,';'); | |
1098 | TOKEN_GETMAD($4,$$,'}'); | |
1099 | } | |
891be019 | 1100 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 | 1101 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 DM |
1102 | TOKEN_GETMAD($1,$$,'{'); |
1103 | TOKEN_GETMAD($2,$$,';'); | |
1104 | TOKEN_GETMAD($3,$$,'}'); | |
1105 | } | |
718a7425 | 1106 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1107 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1108 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1109 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1110 | OP_GETMAD($3,$$,'s'); |
1111 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1112 | } |
891be019 SC |
1113 | |
1114 | ; | |
1115 | ||
1116 | /* Things called with "do" */ | |
1117 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1118 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1119 | TOKEN_GETMAD($1,$$,'o'); |
1120 | } | |
891be019 | 1121 | | DO block %prec '(' /* do { code */ |
f05e27e5 DM |
1122 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); |
1123 | TOKEN_GETMAD($1,$$,'D'); | |
1124 | } | |
ea25a9b2 | 1125 | | DO WORD lpar_or_qw ')' /* do somesub() */ |
891be019 SC |
1126 | { $$ = newUNOP(OP_ENTERSUB, |
1127 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1128 | op_prepend_elem(OP_LIST, |
891be019 SC |
1129 | scalar(newCVREF( |
1130 | (OPpENTERSUB_AMPER<<8), | |
1131 | scalar($2) | |
bcabcc50 | 1132 | )),(OP*)NULL)); dep(); |
f05e27e5 DM |
1133 | TOKEN_GETMAD($1,$$,'o'); |
1134 | TOKEN_GETMAD($3,$$,'('); | |
1135 | TOKEN_GETMAD($4,$$,')'); | |
1136 | } | |
ea25a9b2 | 1137 | | DO WORD lpar_or_qw expr ')' /* do somesub(@args) */ |
891be019 SC |
1138 | { $$ = newUNOP(OP_ENTERSUB, |
1139 | OPf_SPECIAL|OPf_STACKED, | |
2fcb4757 | 1140 | op_append_elem(OP_LIST, |
891be019 SC |
1141 | $4, |
1142 | scalar(newCVREF( | |
1143 | (OPpENTERSUB_AMPER<<8), | |
1144 | scalar($2) | |
f05e27e5 DM |
1145 | )))); dep(); |
1146 | TOKEN_GETMAD($1,$$,'o'); | |
1147 | TOKEN_GETMAD($3,$$,'('); | |
1148 | TOKEN_GETMAD($5,$$,')'); | |
1149 | } | |
ea25a9b2 | 1150 | | DO scalar lpar_or_qw ')' /* do $subref () */ |
891be019 | 1151 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1152 | op_prepend_elem(OP_LIST, |
bcabcc50 | 1153 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 DM |
1154 | TOKEN_GETMAD($1,$$,'o'); |
1155 | TOKEN_GETMAD($3,$$,'('); | |
1156 | TOKEN_GETMAD($4,$$,')'); | |
1157 | } | |
ea25a9b2 | 1158 | | DO scalar lpar_or_qw expr ')' /* do $subref (@args) */ |
891be019 | 1159 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
2fcb4757 | 1160 | op_prepend_elem(OP_LIST, |
891be019 | 1161 | $4, |
f05e27e5 DM |
1162 | scalar(newCVREF(0,scalar($2))))); dep(); |
1163 | TOKEN_GETMAD($1,$$,'o'); | |
1164 | TOKEN_GETMAD($3,$$,'('); | |
1165 | TOKEN_GETMAD($5,$$,')'); | |
1166 | } | |
891be019 SC |
1167 | |
1168 | ; | |
1169 | ||
1170 | term : termbinop | |
1171 | | termunop | |
1172 | | anonymous | |
1173 | | termdo | |
e9bdcc27 | 1174 | | term '?' term ':' term |
f05e27e5 DM |
1175 | { $$ = newCONDOP(0, $1, $3, $5); |
1176 | TOKEN_GETMAD($2,$$,'?'); | |
1177 | TOKEN_GETMAD($4,$$,':'); | |
1178 | } | |
891be019 | 1179 | | REFGEN term /* \$x, \@y, \%z */ |
f05e27e5 DM |
1180 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); |
1181 | TOKEN_GETMAD($1,$$,'o'); | |
1182 | } | |
09bef843 SB |
1183 | | myattrterm %prec UNIOP |
1184 | { $$ = $1; } | |
1185 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1186 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1187 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1188 | } |
a0d0e21e | 1189 | | '(' expr ')' |
f05e27e5 DM |
1190 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1191 | TOKEN_GETMAD($1,$$,'('); | |
1192 | TOKEN_GETMAD($3,$$,')'); | |
1193 | } | |
ea25a9b2 Z |
1194 | | QWLIST |
1195 | { $$ = IF_MAD(newUNOP(OP_NULL,0,$1), $1); } | |
8d063cd8 | 1196 | | '(' ')' |
f05e27e5 DM |
1197 | { $$ = sawparens(newNULLLIST()); |
1198 | TOKEN_GETMAD($1,$$,'('); | |
1199 | TOKEN_GETMAD($2,$$,')'); | |
1200 | } | |
79072805 | 1201 | | scalar %prec '(' |
8d063cd8 | 1202 | { $$ = $1; } |
79072805 | 1203 | | star %prec '(' |
8d063cd8 | 1204 | { $$ = $1; } |
79072805 | 1205 | | hsh %prec '(' |
8d063cd8 | 1206 | { $$ = $1; } |
79072805 | 1207 | | ary %prec '(' |
8d063cd8 | 1208 | { $$ = $1; } |
891be019 | 1209 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1210 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1211 | | subscripted |
1212 | { $$ = $1; } | |
891be019 | 1213 | | ary '[' expr ']' /* array slice */ |
2fcb4757 | 1214 | { $$ = op_prepend_elem(OP_ASLICE, |
79072805 | 1215 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1216 | newLISTOP(OP_ASLICE, 0, |
1217 | list($3), | |
f05e27e5 DM |
1218 | ref($1, OP_ASLICE))); |
1219 | TOKEN_GETMAD($2,$$,'['); | |
1220 | TOKEN_GETMAD($4,$$,']'); | |
1221 | } | |
891be019 | 1222 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
2fcb4757 | 1223 | { $$ = op_prepend_elem(OP_HSLICE, |
79072805 | 1224 | newOP(OP_PUSHMARK, 0), |
79072805 LW |
1225 | newLISTOP(OP_HSLICE, 0, |
1226 | list($3), | |
a0d0e21e | 1227 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1228 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1229 | TOKEN_GETMAD($2,$$,'{'); |
1230 | TOKEN_GETMAD($4,$$,';'); | |
1231 | TOKEN_GETMAD($5,$$,'}'); | |
1232 | } | |
79072805 LW |
1233 | | THING %prec '(' |
1234 | { $$ = $1; } | |
891be019 | 1235 | | amper /* &foo; */ |
c07a80fd | 1236 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ea25a9b2 | 1237 | | amper lpar_or_qw ')' /* &foo() */ |
f05e27e5 DM |
1238 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1239 | TOKEN_GETMAD($2,$$,'('); | |
1240 | TOKEN_GETMAD($3,$$,')'); | |
1241 | } | |
ea25a9b2 | 1242 | | amper lpar_or_qw expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1243 | { |
1244 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2fcb4757 | 1245 | op_append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc | 1246 | DO_MAD({ |
f05e27e5 DM |
1247 | OP* op = $$; |
1248 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1249 | op = (OP*)op->op_madprop->mad_val; | |
1250 | } | |
1251 | token_getmad($2,op,'('); | |
1252 | token_getmad($4,op,')'); | |
035e2bcc | 1253 | }) |
f05e27e5 | 1254 | } |
891be019 | 1255 | | NOAMP WORD listexpr /* foo(@args) */ |
a0d0e21e | 1256 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1257 | op_append_elem(OP_LIST, $3, scalar($2))); |
f05e27e5 DM |
1258 | TOKEN_GETMAD($1,$$,'o'); |
1259 | } | |
891be019 | 1260 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1261 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1262 | PL_hints |= HINT_BLOCK_SCOPE; | |
1263 | TOKEN_GETMAD($1,$$,'o'); | |
1264 | } | |
a0d0e21e | 1265 | | LOOPEX term |
f05e27e5 DM |
1266 | { $$ = newLOOPEX(IVAL($1),$2); |
1267 | TOKEN_GETMAD($1,$$,'o'); | |
1268 | } | |
891be019 | 1269 | | NOTOP argexpr /* not $foo */ |
f05e27e5 DM |
1270 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1271 | TOKEN_GETMAD($1,$$,'o'); | |
1272 | } | |
891be019 | 1273 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1274 | { $$ = newOP(IVAL($1), 0); |
1275 | TOKEN_GETMAD($1,$$,'o'); | |
1276 | } | |
1277 | | UNIOP block /* eval { foo }* */ | |
1278 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1279 | TOKEN_GETMAD($1,$$,'o'); | |
1280 | } | |
891be019 | 1281 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1282 | { $$ = newUNOP(IVAL($1), 0, $2); |
1283 | TOKEN_GETMAD($1,$$,'o'); | |
1284 | } | |
d2fdf8fd RGS |
1285 | | REQUIRE /* require, $_ implied */ |
1286 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1287 | TOKEN_GETMAD($1,$$,'o'); | |
1288 | } | |
1289 | | REQUIRE term /* require Foo */ | |
1290 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1291 | TOKEN_GETMAD($1,$$,'o'); | |
1292 | } | |
3cd0a11a RGS |
1293 | | UNIOPSUB |
1294 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1295 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 | 1296 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
2fcb4757 | 1297 | op_append_elem(OP_LIST, $2, scalar($1))); } |
891be019 | 1298 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1299 | { $$ = newOP(IVAL($1), 0); |
1300 | TOKEN_GETMAD($1,$$,'o'); | |
1301 | } | |
ae986130 | 1302 | | FUNC0 '(' ')' |
f05e27e5 DM |
1303 | { $$ = newOP(IVAL($1), 0); |
1304 | TOKEN_GETMAD($1,$$,'o'); | |
1305 | TOKEN_GETMAD($2,$$,'('); | |
1306 | TOKEN_GETMAD($3,$$,')'); | |
1307 | } | |
891be019 | 1308 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1309 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1310 | scalar($1)); } |
891be019 | 1311 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1312 | { $$ = (IVAL($1) == OP_NOT) |
1313 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1314 | : newOP(IVAL($1), OPf_SPECIAL); | |
1315 | ||
1316 | TOKEN_GETMAD($1,$$,'o'); | |
1317 | TOKEN_GETMAD($2,$$,'('); | |
1318 | TOKEN_GETMAD($3,$$,')'); | |
1319 | } | |
891be019 | 1320 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1321 | { $$ = newUNOP(IVAL($1), 0, $3); |
1322 | TOKEN_GETMAD($1,$$,'o'); | |
1323 | TOKEN_GETMAD($2,$$,'('); | |
1324 | TOKEN_GETMAD($4,$$,')'); | |
1325 | } | |
1326 | | PMFUNC '(' argexpr ')' /* m//, s///, tr/// */ | |
1327 | { $$ = pmruntime($1, $3, 1); | |
1328 | TOKEN_GETMAD($2,$$,'('); | |
1329 | TOKEN_GETMAD($4,$$,')'); | |
1330 | } | |
79072805 | 1331 | | WORD |
378cc40b | 1332 | | listop |
be25f609 | 1333 | | YADAYADA |
1334 | { | |
1335 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), | |
1336 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); | |
950f2ea2 | 1337 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 | 1338 | } |
88e1f1a2 | 1339 | | PLUGEXPR |
8d063cd8 LW |
1340 | ; |
1341 | ||
891be019 | 1342 | /* "my" declarations, with optional attributes */ |
09bef843 | 1343 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1344 | { $$ = my_attrs($2,$3); |
1345 | DO_MAD( | |
1346 | token_getmad($1,$$,'d'); | |
1347 | append_madprops($3->op_madprop, $$, 'a'); | |
1348 | $3->op_madprop = 0; | |
1349 | ) | |
1350 | } | |
09bef843 | 1351 | | MY myterm |
f05e27e5 DM |
1352 | { $$ = localize($2,IVAL($1)); |
1353 | TOKEN_GETMAD($1,$$,'d'); | |
1354 | } | |
09bef843 SB |
1355 | ; |
1356 | ||
891be019 | 1357 | /* Things that can be "my"'d */ |
09bef843 | 1358 | myterm : '(' expr ')' |
f05e27e5 DM |
1359 | { $$ = sawparens($2); |
1360 | TOKEN_GETMAD($1,$$,'('); | |
1361 | TOKEN_GETMAD($3,$$,')'); | |
1362 | } | |
09bef843 | 1363 | | '(' ')' |
f05e27e5 DM |
1364 | { $$ = sawparens(newNULLLIST()); |
1365 | TOKEN_GETMAD($1,$$,'('); | |
1366 | TOKEN_GETMAD($2,$$,')'); | |
1367 | } | |
09bef843 SB |
1368 | | scalar %prec '(' |
1369 | { $$ = $1; } | |
1370 | | hsh %prec '(' | |
1371 | { $$ = $1; } | |
1372 | | ary %prec '(' | |
1373 | { $$ = $1; } | |
1374 | ; | |
1375 | ||
891be019 | 1376 | /* Basic list expressions */ |
fad39ff1 | 1377 | listexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 | 1378 | { $$ = (OP*)NULL; } |
fad39ff1 | 1379 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
1380 | { $$ = $1; } |
1381 | ; | |
1382 | ||
1383 | listexprcom: /* NULL */ | |
bcabcc50 | 1384 | { $$ = (OP*)NULL; } |
79072805 LW |
1385 | | expr |
1386 | { $$ = $1; } | |
1387 | ; | |
1388 | ||
ea25a9b2 Z |
1389 | lpar_or_qw: '(' |
1390 | { $$ = $1; } | |
1391 | | QWLIST | |
f7e3d326 | 1392 | { munge_qwlist_to_paren_list($1); } |
ea25a9b2 Z |
1393 | '(' |
1394 | { $$ = $3; } | |
1395 | ; | |
1396 | ||
891be019 SC |
1397 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1398 | lexical */ | |
55497cff | 1399 | my_scalar: scalar |
12bd6ede | 1400 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1401 | ; |
1402 | ||
79072805 | 1403 | amper : '&' indirob |
f05e27e5 DM |
1404 | { $$ = newCVREF(IVAL($1),$2); |
1405 | TOKEN_GETMAD($1,$$,'&'); | |
1406 | } | |
a687059c LW |
1407 | ; |
1408 | ||
79072805 | 1409 | scalar : '$' indirob |
f05e27e5 DM |
1410 | { $$ = newSVREF($2); |
1411 | TOKEN_GETMAD($1,$$,'$'); | |
1412 | } | |
a687059c LW |
1413 | ; |
1414 | ||
79072805 | 1415 | ary : '@' indirob |
f05e27e5 DM |
1416 | { $$ = newAVREF($2); |
1417 | TOKEN_GETMAD($1,$$,'@'); | |
1418 | } | |
79072805 LW |
1419 | ; |
1420 | ||
1421 | hsh : '%' indirob | |
f05e27e5 DM |
1422 | { $$ = newHVREF($2); |
1423 | TOKEN_GETMAD($1,$$,'%'); | |
1424 | } | |
79072805 LW |
1425 | ; |
1426 | ||
1427 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1428 | { $$ = newAVREF($2); |
1429 | TOKEN_GETMAD($1,$$,'l'); | |
1430 | } | |
79072805 LW |
1431 | ; |
1432 | ||
1433 | star : '*' indirob | |
f05e27e5 DM |
1434 | { $$ = newGVREF(0,$2); |
1435 | TOKEN_GETMAD($1,$$,'*'); | |
1436 | } | |
79072805 LW |
1437 | ; |
1438 | ||
891be019 | 1439 | /* Indirect objects */ |
79072805 LW |
1440 | indirob : WORD |
1441 | { $$ = scalar($1); } | |
fad39ff1 | 1442 | | scalar %prec PREC_LOW |
f05e27e5 | 1443 | { $$ = scalar($1); } |
79072805 | 1444 | | block |
a0d0e21e | 1445 | { $$ = scope($1); } |
79072805 | 1446 | |
93a17b20 LW |
1447 | | PRIVATEREF |
1448 | { $$ = $1; } | |
8d063cd8 | 1449 | ; |