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