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 |
a687059c | 4 | * |
9ef589d8 LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
8d063cd8 | 7 | * |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? | |
14a38fd5 | 12 | * All that is gold does not glitter, not all those who wander are lost.' |
f05e27e5 DM |
13 | * |
14 | * This file holds the grammar for the Perl language. If edited, you need | |
166f8a29 DM |
15 | * to run regen_perly.pl, which re-creates the files perly.h, perly.tab |
16 | * and perly.act which are derived from this. | |
17 | * | |
f05e27e5 DM |
18 | * Note that these derived files are included and compiled twice; once |
19 | * from perly.c, and once from madly.c. The second time, a number of MAD | |
20 | * macros are defined, which compile in extra code that allows the parse | |
21 | * tree to be accurately dumped. In particular: | |
22 | * | |
23 | * MAD defined if compiling madly.c | |
24 | * DO_MAD(A) expands to A under madly.c, to null otherwise | |
25 | * IF_MAD(a,b) expands to A under madly.c, to B otherwise | |
26 | * TOKEN_GETMAD() expands to token_getmad() under madly.c, to null otherwise | |
27 | * TOKEN_FREE() similarly | |
28 | * OP_GETMAD() similarly | |
29 | * IVAL(i) expands to (i)->tk_lval.ival or (i) | |
30 | * PVAL(p) expands to (p)->tk_lval.pval or (p) | |
31 | * | |
166f8a29 DM |
32 | * The main job of of this grammar is to call the various newFOO() |
33 | * functions in op.c to build a syntax tree of OP structs. | |
61296642 | 34 | * It relies on the lexer in toke.c to do the tokenizing. |
29522234 DM |
35 | * |
36 | * Note: due to the way that the cleanup code works WRT to freeing ops on | |
37 | * the parse stack, it is dangerous to assign to the $n variables within | |
38 | * an action. | |
166f8a29 DM |
39 | */ |
40 | ||
0de566d7 | 41 | /* Make the parser re-entrant. */ |
8d063cd8 | 42 | |
0de566d7 | 43 | %pure_parser |
8d063cd8 | 44 | |
f05e27e5 DM |
45 | /* FIXME for MAD - is the new mintro on while and until important? */ |
46 | ||
0de566d7 | 47 | %start prog |
9d116dd7 | 48 | |
8d063cd8 | 49 | %union { |
d5c6462e DM |
50 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
51 | must always be 1st union member) */ | |
79072805 LW |
52 | char *pval; |
53 | OP *opval; | |
54 | GV *gvval; | |
f05e27e5 DM |
55 | #ifdef PERL_IN_MADLY_C |
56 | TOKEN* p_tkval; | |
123d08c9 | 57 | TOKEN* i_tkval; |
f05e27e5 DM |
58 | #else |
59 | char *p_tkval; | |
123d08c9 DM |
60 | I32 i_tkval; |
61 | #endif | |
62 | #ifdef PERL_MAD | |
63 | TOKEN* tkval; | |
f05e27e5 | 64 | #endif |
8d063cd8 LW |
65 | } |
66 | ||
123d08c9 | 67 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
f0fcb552 | 68 | |
a0d0e21e | 69 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
4633a7c4 | 70 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
f05e27e5 | 71 | %token <p_tkval> LABEL |
123d08c9 DM |
72 | %token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE |
73 | %token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR | |
74 | %token <i_tkval> GIVEN WHEN DEFAULT | |
75 | %token <i_tkval> LOOPEX DOTDOT | |
76 | %token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP | |
77 | %token <i_tkval> RELOP EQOP MULOP ADDOP | |
78 | %token <i_tkval> DOLSHARP DO HASHBRACK NOAMP | |
79 | %token <i_tkval> LOCAL MY MYSUB REQUIRE | |
80 | %token <i_tkval> COLONATTR | |
f05e27e5 | 81 | |
503de470 | 82 | %type <ival> prog progstart remember mremember |
f05e27e5 DM |
83 | %type <ival> startsub startanonsub startformsub |
84 | /* FIXME for MAD - are these two ival? */ | |
85 | %type <ival> mydefsv mintro | |
86 | ||
87 | %type <opval> decl format subrout mysubrout package use peg | |
88 | ||
bbce6d69 | 89 | %type <opval> block mblock lineseq line loop cond else |
fad39ff1 | 90 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
a034e688 | 91 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr miexpr |
44a8e56a | 92 | %type <opval> listexpr listexprcom indirob listop method |
93 | %type <opval> formname subname proto subbody cont my_scalar | |
f05e27e5 | 94 | %type <opval> subattrlist myattrlist myattrterm myterm |
891be019 | 95 | %type <opval> termbinop termunop anonymous termdo |
0d863452 | 96 | %type <opval> switch case |
f05e27e5 | 97 | %type <p_tkval> label |
79072805 | 98 | |
123d08c9 | 99 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 SM |
100 | %nonassoc LOOPEX |
101 | ||
123d08c9 DM |
102 | %left <i_tkval> OROP DOROP |
103 | %left <i_tkval> ANDOP | |
104 | %right <i_tkval> NOTOP | |
36477c24 | 105 | %nonassoc LSTOP LSTOPSUB |
123d08c9 DM |
106 | %left <i_tkval> ',' |
107 | %right <i_tkval> ASSIGNOP | |
108 | %right <i_tkval> '?' ':' | |
8d063cd8 | 109 | %nonassoc DOTDOT |
123d08c9 DM |
110 | %left <i_tkval> OROR DORDOR |
111 | %left <i_tkval> ANDAND | |
112 | %left <i_tkval> BITOROP | |
113 | %left <i_tkval> BITANDOP | |
a687059c LW |
114 | %nonassoc EQOP |
115 | %nonassoc RELOP | |
36477c24 | 116 | %nonassoc UNIOP UNIOPSUB |
20515881 | 117 | %nonassoc REQUIRE |
123d08c9 | 118 | %left <i_tkval> SHIFTOP |
a687059c LW |
119 | %left ADDOP |
120 | %left MULOP | |
123d08c9 DM |
121 | %left <i_tkval> MATCHOP |
122 | %right <i_tkval> '!' '~' UMINUS REFGEN | |
123 | %right <i_tkval> POWOP | |
124 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC | |
125 | %left <i_tkval> ARROW | |
126 | %nonassoc <i_tkval> ')' | |
127 | %left <i_tkval> '(' | |
fad39ff1 | 128 | %left '[' '{' |
8d063cd8 | 129 | |
123d08c9 | 130 | %token <i_tkval> PEG |
7f46837f | 131 | |
8d063cd8 LW |
132 | %% /* RULES */ |
133 | ||
891be019 | 134 | /* The whole program */ |
ecb2f335 | 135 | prog : progstart |
ae986130 | 136 | /*CONTINUED*/ lineseq |
ecb2f335 | 137 | { $$ = $1; newPROG(block_end($1,$2)); } |
8d063cd8 LW |
138 | ; |
139 | ||
891be019 | 140 | /* An ordinary block */ |
a687059c | 141 | block : '{' remember lineseq '}' |
53a7735b DM |
142 | { if (PL_parser->copline > (line_t)IVAL($1)) |
143 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
144 | $$ = block_end($2, $3); |
145 | TOKEN_GETMAD($1,$$,'{'); | |
146 | TOKEN_GETMAD($4,$$,'}'); | |
147 | } | |
a0d0e21e LW |
148 | ; |
149 | ||
55497cff | 150 | remember: /* NULL */ /* start a full lexical scope */ |
151 | { $$ = block_start(TRUE); } | |
152 | ; | |
153 | ||
0d863452 RH |
154 | mydefsv: /* NULL */ /* lexicalize $_ */ |
155 | { $$ = (I32) allocmy("$_"); } | |
156 | ; | |
157 | ||
ecb2f335 NIS |
158 | progstart: |
159 | { | |
53a7735b | 160 | PL_parser->expect = XSTATE; $$ = block_start(TRUE); |
ecb2f335 NIS |
161 | } |
162 | ; | |
163 | ||
164 | ||
bbce6d69 | 165 | mblock : '{' mremember lineseq '}' |
53a7735b DM |
166 | { if (PL_parser->copline > (line_t)IVAL($1)) |
167 | PL_parser->copline = (line_t)IVAL($1); | |
f05e27e5 DM |
168 | $$ = block_end($2, $3); |
169 | TOKEN_GETMAD($1,$$,'{'); | |
170 | TOKEN_GETMAD($4,$$,'}'); | |
171 | } | |
55497cff | 172 | ; |
173 | ||
174 | mremember: /* NULL */ /* start a partial lexical scope */ | |
175 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
176 | ; |
177 | ||
891be019 | 178 | /* A collection of "lines" in the program */ |
8d063cd8 | 179 | lineseq : /* NULL */ |
79072805 LW |
180 | { $$ = Nullop; } |
181 | | lineseq decl | |
f05e27e5 DM |
182 | { |
183 | $$ = IF_MAD( | |
184 | append_list(OP_LINESEQ, | |
185 | (LISTOP*)$1, (LISTOP*)$2), | |
186 | $1); | |
187 | } | |
503de470 DM |
188 | | lineseq line |
189 | { $$ = append_list(OP_LINESEQ, | |
190 | (LISTOP*)$1, (LISTOP*)$2); | |
3280af22 | 191 | PL_pad_reset_pending = TRUE; |
503de470 DM |
192 | if ($1 && $2) |
193 | PL_hints |= HINT_BLOCK_SCOPE; | |
194 | } | |
8d063cd8 LW |
195 | ; |
196 | ||
891be019 | 197 | /* A "line" in the program */ |
79072805 | 198 | line : label cond |
f05e27e5 DM |
199 | { $$ = newSTATEOP(0, PVAL($1), $2); |
200 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } | |
8d063cd8 | 201 | | loop /* loops add their own labels */ |
0d863452 RH |
202 | | switch /* ... and so do switches */ |
203 | { $$ = $1; } | |
204 | | label case | |
f05e27e5 | 205 | { $$ = newSTATEOP(0, PVAL($1), $2); } |
8d063cd8 | 206 | | label ';' |
f05e27e5 DM |
207 | { |
208 | if (PVAL($1)) { | |
209 | $$ = newSTATEOP(0, PVAL($1), newOP(OP_NULL, 0)); | |
210 | TOKEN_GETMAD($1,$$,'L'); | |
211 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first,';'); | |
212 | } | |
213 | else { | |
214 | $$ = IF_MAD( | |
215 | newOP(OP_NULL, 0), | |
216 | Nullop); | |
53a7735b | 217 | PL_parser->copline = NOLINE; |
f05e27e5 DM |
218 | TOKEN_FREE($1); |
219 | TOKEN_GETMAD($2,$$,';'); | |
220 | } | |
53a7735b | 221 | PL_parser->expect = XSTATE; |
f05e27e5 | 222 | } |
8d063cd8 | 223 | | label sideff ';' |
f05e27e5 DM |
224 | { |
225 | $$ = newSTATEOP(0, PVAL($1), $2); | |
53a7735b | 226 | PL_parser->expect = XSTATE; |
035e2bcc | 227 | DO_MAD({ |
f05e27e5 DM |
228 | /* sideff might already have a nexstate */ |
229 | OP* op = ((LISTOP*)$$)->op_first; | |
230 | if (op) { | |
231 | while (op->op_sibling && | |
232 | op->op_sibling->op_type == OP_NEXTSTATE) | |
233 | op = op->op_sibling; | |
234 | token_getmad($1,op,'L'); | |
235 | token_getmad($3,op,';'); | |
236 | } | |
035e2bcc | 237 | }) |
f05e27e5 | 238 | } |
8d063cd8 LW |
239 | ; |
240 | ||
891be019 | 241 | /* An expression which may have a side-effect */ |
a687059c | 242 | sideff : error |
79072805 | 243 | { $$ = Nullop; } |
a687059c | 244 | | expr |
79072805 | 245 | { $$ = $1; } |
a687059c | 246 | | expr IF expr |
f05e27e5 DM |
247 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
248 | TOKEN_GETMAD($2,$$,'i'); | |
249 | } | |
a687059c | 250 | | expr UNLESS expr |
f05e27e5 DM |
251 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
252 | TOKEN_GETMAD($2,$$,'i'); | |
253 | } | |
a687059c | 254 | | expr WHILE expr |
f05e27e5 DM |
255 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
256 | TOKEN_GETMAD($2,$$,'w'); | |
257 | } | |
55497cff | 258 | | expr UNTIL iexpr |
f05e27e5 DM |
259 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
260 | TOKEN_GETMAD($2,$$,'w'); | |
261 | } | |
ecca16b0 | 262 | | expr FOR expr |
1a9a51d4 | 263 | { $$ = newFOROP(0, NULL, (line_t)IVAL($2), |
f05e27e5 DM |
264 | Nullop, $3, $1, Nullop); |
265 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first->op_sibling,'w'); | |
266 | } | |
79072805 LW |
267 | ; |
268 | ||
891be019 | 269 | /* else and elsif blocks */ |
79072805 LW |
270 | else : /* NULL */ |
271 | { $$ = Nullop; } | |
55497cff | 272 | | ELSE mblock |
f05e27e5 DM |
273 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); |
274 | TOKEN_GETMAD($1,$$,'o'); | |
275 | } | |
55497cff | 276 | | ELSIF '(' mexpr ')' mblock else |
53a7735b | 277 | { PL_parser->copline = (line_t)IVAL($1); |
2c15bef3 | 278 | $$ = newCONDOP(0, $3, scope($5), $6); |
f05e27e5 DM |
279 | PL_hints |= HINT_BLOCK_SCOPE; |
280 | TOKEN_GETMAD($1,$$,'I'); | |
281 | TOKEN_GETMAD($2,$$,'('); | |
282 | TOKEN_GETMAD($4,$$,')'); | |
283 | } | |
79072805 LW |
284 | ; |
285 | ||
891be019 | 286 | /* Real conditional expressions */ |
55497cff | 287 | cond : IF '(' remember mexpr ')' mblock else |
53a7735b | 288 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 289 | $$ = block_end($3, |
f05e27e5 DM |
290 | newCONDOP(0, $4, scope($6), $7)); |
291 | TOKEN_GETMAD($1,$$,'I'); | |
292 | TOKEN_GETMAD($2,$$,'('); | |
293 | TOKEN_GETMAD($5,$$,')'); | |
294 | } | |
55497cff | 295 | | UNLESS '(' remember miexpr ')' mblock else |
53a7735b | 296 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 | 297 | $$ = block_end($3, |
f05e27e5 DM |
298 | newCONDOP(0, $4, scope($6), $7)); |
299 | TOKEN_GETMAD($1,$$,'I'); | |
300 | TOKEN_GETMAD($2,$$,'('); | |
301 | TOKEN_GETMAD($5,$$,')'); | |
302 | } | |
79072805 LW |
303 | ; |
304 | ||
0d863452 RH |
305 | /* Cases for a switch statement */ |
306 | case : WHEN '(' remember mexpr ')' mblock | |
307 | { $$ = block_end($3, | |
308 | newWHENOP($4, scope($6))); } | |
309 | | DEFAULT block | |
310 | { $$ = newWHENOP(0, scope($2)); } | |
311 | ; | |
312 | ||
891be019 | 313 | /* Continue blocks */ |
79072805 LW |
314 | cont : /* NULL */ |
315 | { $$ = Nullop; } | |
316 | | CONTINUE block | |
f05e27e5 DM |
317 | { $$ = scope($2); |
318 | TOKEN_GETMAD($1,$$,'o'); | |
319 | } | |
79072805 LW |
320 | ; |
321 | ||
891be019 | 322 | /* Loops: while, until, for, and a bare block */ |
a034e688 | 323 | loop : label WHILE '(' remember texpr ')' mintro mblock cont |
f05e27e5 | 324 | { OP *innerop; |
53a7735b | 325 | PL_parser->copline = (line_t)$2; |
36477c24 | 326 | $$ = block_end($4, |
f05e27e5 DM |
327 | newSTATEOP(0, PVAL($1), |
328 | innerop = newWHILEOP(0, 1, (LOOP*)Nullop, | |
329 | IVAL($2), $5, $8, $9, $7))); | |
330 | TOKEN_GETMAD($1,innerop,'L'); | |
331 | TOKEN_GETMAD($2,innerop,'W'); | |
332 | TOKEN_GETMAD($3,innerop,'('); | |
333 | TOKEN_GETMAD($6,innerop,')'); | |
334 | } | |
335 | ||
a034e688 | 336 | | label UNTIL '(' remember iexpr ')' mintro mblock cont |
f05e27e5 | 337 | { OP *innerop; |
53a7735b | 338 | PL_parser->copline = (line_t)$2; |
36477c24 | 339 | $$ = block_end($4, |
f05e27e5 DM |
340 | newSTATEOP(0, PVAL($1), |
341 | innerop = newWHILEOP(0, 1, (LOOP*)Nullop, | |
342 | IVAL($2), $5, $8, $9, $7))); | |
343 | TOKEN_GETMAD($1,innerop,'L'); | |
344 | TOKEN_GETMAD($2,innerop,'W'); | |
345 | TOKEN_GETMAD($3,innerop,'('); | |
346 | TOKEN_GETMAD($6,innerop,')'); | |
347 | } | |
bbce6d69 | 348 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
f05e27e5 DM |
349 | { OP *innerop; |
350 | $$ = block_end($4, | |
351 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
352 | $5, $7, $9, $10)); | |
353 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
354 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
355 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'d'); | |
356 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
357 | TOKEN_GETMAD($8,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
358 | } | |
bbce6d69 | 359 | | label FOR scalar '(' remember mexpr ')' mblock cont |
f05e27e5 DM |
360 | { OP *innerop; |
361 | $$ = block_end($5, | |
362 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
363 | mod($3, OP_ENTERLOOP), $6, $8, $9)); | |
364 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
365 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
366 | TOKEN_GETMAD($4,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
367 | TOKEN_GETMAD($7,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
368 | } | |
bbce6d69 | 369 | | label FOR '(' remember mexpr ')' mblock cont |
f05e27e5 DM |
370 | { OP *innerop; |
371 | $$ = block_end($4, | |
372 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), | |
373 | Nullop, $5, $7, $8)); | |
374 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); | |
375 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); | |
376 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'('); | |
377 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,')'); | |
378 | } | |
a034e688 DM |
379 | | label FOR '(' remember mnexpr ';' texpr ';' mintro mnexpr ')' |
380 | mblock | |
8d063cd8 | 381 | /* basically fake up an initialize-while lineseq */ |
36c66720 | 382 | { OP *forop; |
53a7735b | 383 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 | 384 | forop = newSTATEOP(0, PVAL($1), |
36c66720 | 385 | newWHILEOP(0, 1, (LOOP*)Nullop, |
f05e27e5 | 386 | IVAL($2), scalar($7), |
a034e688 | 387 | $12, $10, $9)); |
f05e27e5 | 388 | #ifdef MAD |
f05e27e5 DM |
389 | forop = newUNOP(OP_NULL, 0, append_elem(OP_LINESEQ, |
390 | newSTATEOP(0, | |
63031daf | 391 | CopLABEL_alloc(($1)->tk_lval.pval), |
700f8fa5 | 392 | ($5 ? $5 : newOP(OP_NULL, 0)) ), |
f05e27e5 DM |
393 | forop)); |
394 | ||
395 | token_getmad($2,forop,'3'); | |
396 | token_getmad($3,forop,'('); | |
397 | token_getmad($6,forop,'1'); | |
398 | token_getmad($8,forop,'2'); | |
399 | token_getmad($11,forop,')'); | |
400 | token_getmad($1,forop,'L'); | |
401 | #else | |
36c66720 RH |
402 | if ($5) { |
403 | forop = append_elem(OP_LINESEQ, | |
63031daf | 404 | newSTATEOP(0, CopLABEL_alloc($1), $5), |
36c66720 RH |
405 | forop); |
406 | } | |
407 | ||
f05e27e5 DM |
408 | |
409 | #endif | |
36c66720 | 410 | $$ = block_end($4, forop); } |
79072805 | 411 | | label block cont /* a block is a loop that happens once */ |
f05e27e5 | 412 | { $$ = newSTATEOP(0, PVAL($1), |
fb73857a | 413 | newWHILEOP(0, 1, (LOOP*)Nullop, |
f05e27e5 DM |
414 | NOLINE, Nullop, $2, $3, 0)); |
415 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } | |
8d063cd8 LW |
416 | ; |
417 | ||
0d863452 RH |
418 | /* Switch blocks */ |
419 | switch : label GIVEN '(' remember mydefsv mexpr ')' mblock | |
53a7735b | 420 | { PL_parser->copline = (line_t) $2; |
0d863452 | 421 | $$ = block_end($4, |
f05e27e5 | 422 | newSTATEOP(0, PVAL($1), |
0d863452 RH |
423 | newGIVENOP($6, scope($8), |
424 | (PADOFFSET) $5) )); } | |
425 | ; | |
426 | ||
a034e688 DM |
427 | /* determine whether there are any new my declarations */ |
428 | mintro : /* NULL */ | |
429 | { $$ = (PL_min_intro_pending && | |
430 | PL_max_intro_pending >= PL_min_intro_pending); | |
431 | intro_my(); } | |
432 | ||
891be019 | 433 | /* Normal expression */ |
8d063cd8 | 434 | nexpr : /* NULL */ |
79072805 | 435 | { $$ = Nullop; } |
8d063cd8 LW |
436 | | sideff |
437 | ; | |
438 | ||
891be019 | 439 | /* Boolean expression */ |
8d063cd8 | 440 | texpr : /* NULL means true */ |
f05e27e5 DM |
441 | { YYSTYPE tmplval; |
442 | (void)scan_num("1", &tmplval); | |
443 | $$ = tmplval.opval; } | |
8d063cd8 LW |
444 | | expr |
445 | ; | |
446 | ||
891be019 | 447 | /* Inverted boolean expression */ |
55497cff | 448 | iexpr : expr |
449 | { $$ = invert(scalar($1)); } | |
450 | ; | |
451 | ||
891be019 | 452 | /* Expression with its own lexical scope */ |
55497cff | 453 | mexpr : expr |
bbce6d69 | 454 | { $$ = $1; intro_my(); } |
455 | ; | |
456 | ||
457 | mnexpr : nexpr | |
458 | { $$ = $1; intro_my(); } | |
55497cff | 459 | ; |
460 | ||
55497cff | 461 | miexpr : iexpr |
bbce6d69 | 462 | { $$ = $1; intro_my(); } |
55497cff | 463 | ; |
464 | ||
891be019 | 465 | /* Optional "MAIN:"-style loop labels */ |
8d063cd8 | 466 | label : /* empty */ |
f05e27e5 DM |
467 | { |
468 | #ifdef MAD | |
469 | YYSTYPE tmplval; | |
1a9a51d4 | 470 | tmplval.pval = NULL; |
f05e27e5 DM |
471 | $$ = newTOKEN(OP_NULL, tmplval, 0); |
472 | #else | |
1a9a51d4 | 473 | $$ = NULL; |
f05e27e5 DM |
474 | #endif |
475 | } | |
32c2e4fb | 476 | | LABEL |
8d063cd8 LW |
477 | ; |
478 | ||
f05e27e5 | 479 | /* Some kind of declaration - just hang on peg in the parse tree */ |
8d063cd8 | 480 | decl : format |
f05e27e5 | 481 | { $$ = $1; } |
8d063cd8 | 482 | | subrout |
f05e27e5 | 483 | { $$ = $1; } |
09bef843 | 484 | | mysubrout |
f05e27e5 | 485 | { $$ = $1; } |
a687059c | 486 | | package |
f05e27e5 | 487 | { $$ = $1; } |
a0d0e21e | 488 | | use |
f05e27e5 DM |
489 | { $$ = $1; } |
490 | ||
491 | /* these two are only used by MAD */ | |
492 | ||
493 | | peg | |
494 | { $$ = $1; } | |
495 | ; | |
496 | ||
497 | peg : PEG | |
498 | { $$ = newOP(OP_NULL,0); | |
499 | TOKEN_GETMAD($1,$$,'p'); | |
500 | } | |
8d063cd8 LW |
501 | ; |
502 | ||
718a7425 | 503 | format : FORMAT startformsub formname block |
5a5094bd | 504 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 505 | #ifdef MAD |
718a7425 | 506 | $$ = newFORM($2, $3, $4); |
f05e27e5 DM |
507 | prepend_madprops($1->tk_mad, $$, 'F'); |
508 | $1->tk_mad = 0; | |
509 | token_free($1); | |
510 | #else | |
718a7425 | 511 | newFORM($2, $3, $4); |
30994c59 | 512 | $$ = Nullop; |
f05e27e5 DM |
513 | #endif |
514 | } | |
44a8e56a | 515 | ; |
516 | ||
517 | formname: WORD { $$ = $1; } | |
518 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
519 | ; |
520 | ||
891be019 | 521 | /* Unimplemented "my sub foo { }" */ |
718a7425 | 522 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
5a5094bd | 523 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 524 | #ifdef MAD |
718a7425 | 525 | $$ = newMYSUB($2, $3, $4, $5, $6); |
f05e27e5 DM |
526 | token_getmad($1,$$,'d'); |
527 | #else | |
718a7425 | 528 | newMYSUB($2, $3, $4, $5, $6); |
30994c59 | 529 | $$ = Nullop; |
f05e27e5 DM |
530 | #endif |
531 | } | |
09bef843 SB |
532 | ; |
533 | ||
891be019 | 534 | /* Subroutine definition */ |
718a7425 | 535 | subrout : SUB startsub subname proto subattrlist subbody |
5a5094bd | 536 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 537 | #ifdef MAD |
035e2bcc DM |
538 | { |
539 | OP* o = newSVOP(OP_ANONCODE, 0, | |
540 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); | |
541 | $$ = newOP(OP_NULL,0); | |
542 | op_getmad(o,$$,'&'); | |
543 | op_getmad($3,$$,'n'); | |
544 | op_getmad($4,$$,'s'); | |
545 | op_getmad($5,$$,'a'); | |
546 | token_getmad($1,$$,'d'); | |
547 | append_madprops($6->op_madprop, $$, 0); | |
548 | $6->op_madprop = 0; | |
549 | } | |
f05e27e5 | 550 | #else |
718a7425 | 551 | newATTRSUB($2, $3, $4, $5, $6); |
f05e27e5 DM |
552 | $$ = Nullop; |
553 | #endif | |
554 | } | |
28757baa | 555 | ; |
556 | ||
fa83b5b6 | 557 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 DM |
558 | { $$ = start_subparse(FALSE, 0); |
559 | SAVEFREESV(PL_compcv); } | |
f05e27e5 | 560 | |
28757baa | 561 | ; |
562 | ||
563 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
a8ff2fa6 DM |
564 | { $$ = start_subparse(FALSE, CVf_ANON); |
565 | SAVEFREESV(PL_compcv); } | |
28757baa | 566 | ; |
567 | ||
44a8e56a | 568 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 DM |
569 | { $$ = start_subparse(TRUE, 0); |
570 | SAVEFREESV(PL_compcv); } | |
44a8e56a | 571 | ; |
572 | ||
891be019 | 573 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe | 574 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 | 575 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 AG |
576 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
577 | || strEQ(name, "UNITCHECK")) | |
1aff0e91 | 578 | CvSPECIAL_on(PL_compcv); |
28757baa | 579 | $$ = $1; } |
a0d0e21e LW |
580 | ; |
581 | ||
891be019 | 582 | /* Subroutine prototype */ |
4633a7c4 LW |
583 | proto : /* NULL */ |
584 | { $$ = Nullop; } | |
585 | | THING | |
586 | ; | |
28757baa | 587 | |
891be019 | 588 | /* Optional list of subroutine attributes */ |
09bef843 SB |
589 | subattrlist: /* NULL */ |
590 | { $$ = Nullop; } | |
591 | | COLONATTR THING | |
f05e27e5 DM |
592 | { $$ = $2; |
593 | TOKEN_GETMAD($1,$$,':'); | |
594 | } | |
09bef843 | 595 | | COLONATTR |
f05e27e5 DM |
596 | { $$ = IF_MAD( |
597 | newOP(OP_NULL, 0), | |
598 | Nullop | |
599 | ); | |
600 | TOKEN_GETMAD($1,$$,':'); | |
601 | } | |
09bef843 SB |
602 | ; |
603 | ||
891be019 | 604 | /* List of attributes for a "my" variable declaration */ |
09bef843 | 605 | myattrlist: COLONATTR THING |
f05e27e5 DM |
606 | { $$ = $2; |
607 | TOKEN_GETMAD($1,$$,':'); | |
608 | } | |
09bef843 | 609 | | COLONATTR |
f05e27e5 DM |
610 | { $$ = IF_MAD( |
611 | newOP(OP_NULL, 0), | |
612 | Nullop | |
613 | ); | |
614 | TOKEN_GETMAD($1,$$,':'); | |
615 | } | |
09bef843 SB |
616 | ; |
617 | ||
891be019 | 618 | /* Subroutine body - either null or a block */ |
28757baa | 619 | subbody : block { $$ = $1; } |
f05e27e5 DM |
620 | | ';' { $$ = IF_MAD( |
621 | newOP(OP_NULL,0), | |
622 | Nullop | |
623 | ); | |
53a7735b | 624 | PL_parser->expect = XSTATE; |
f05e27e5 DM |
625 | TOKEN_GETMAD($1,$$,';'); |
626 | } | |
8d063cd8 LW |
627 | ; |
628 | ||
a687059c | 629 | package : PACKAGE WORD ';' |
f05e27e5 DM |
630 | { |
631 | #ifdef MAD | |
632 | $$ = package($2); | |
633 | token_getmad($1,$$,'o'); | |
634 | token_getmad($3,$$,';'); | |
635 | #else | |
636 | package($2); | |
30994c59 | 637 | $$ = Nullop; |
f05e27e5 DM |
638 | #endif |
639 | } | |
a687059c LW |
640 | ; |
641 | ||
718a7425 | 642 | use : USE startsub |
1aff0e91 | 643 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 644 | WORD WORD listexpr ';' |
5a5094bd | 645 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 | 646 | #ifdef MAD |
718a7425 | 647 | $$ = utilize(IVAL($1), $2, $4, $5, $6); |
f05e27e5 | 648 | token_getmad($1,$$,'o'); |
718a7425 | 649 | token_getmad($7,$$,';'); |
5486870f DM |
650 | if (PL_parser->rsfp_filters && |
651 | AvFILLp(PL_parser->rsfp_filters) >= 0) | |
f05e27e5 DM |
652 | append_madprops(newMADPROP('!', MAD_PV, "", 0), $$, 0); |
653 | #else | |
718a7425 | 654 | utilize(IVAL($1), $2, $4, $5, $6); |
30994c59 | 655 | $$ = Nullop; |
f05e27e5 DM |
656 | #endif |
657 | } | |
85e6fe83 LW |
658 | ; |
659 | ||
891be019 | 660 | /* Ordinary expressions; logical combinations */ |
a0d0e21e | 661 | expr : expr ANDOP expr |
f05e27e5 DM |
662 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
663 | TOKEN_GETMAD($2,$$,'o'); | |
664 | } | |
a0d0e21e | 665 | | expr OROP expr |
f05e27e5 DM |
666 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
667 | TOKEN_GETMAD($2,$$,'o'); | |
668 | } | |
c963b151 | 669 | | expr DOROP expr |
f05e27e5 DM |
670 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
671 | TOKEN_GETMAD($2,$$,'o'); | |
672 | } | |
fad39ff1 | 673 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
674 | ; |
675 | ||
891be019 | 676 | /* Expressions are a list of terms joined by commas */ |
a0d0e21e | 677 | argexpr : argexpr ',' |
f05e27e5 DM |
678 | { |
679 | #ifdef MAD | |
680 | OP* op = newNULLLIST(); | |
681 | token_getmad($2,op,','); | |
682 | $$ = append_elem(OP_LIST, $1, op); | |
683 | #else | |
684 | $$ = $1; | |
685 | #endif | |
686 | } | |
a0d0e21e | 687 | | argexpr ',' term |
f05e27e5 | 688 | { |
29522234 | 689 | OP* term = $3; |
f05e27e5 | 690 | DO_MAD( |
29522234 DM |
691 | term = newUNOP(OP_NULL, 0, term); |
692 | token_getmad($2,term,','); | |
f05e27e5 | 693 | ) |
29522234 | 694 | $$ = append_elem(OP_LIST, $1, term); |
f05e27e5 | 695 | } |
fad39ff1 | 696 | | term %prec PREC_LOW |
8d063cd8 LW |
697 | ; |
698 | ||
891be019 | 699 | /* List operators */ |
ad4673e5 | 700 | listop : LSTOP indirob argexpr /* map {...} @args or print $fh @args */ |
f05e27e5 DM |
701 | { $$ = convert(IVAL($1), OPf_STACKED, |
702 | prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); | |
703 | TOKEN_GETMAD($1,$$,'o'); | |
704 | } | |
891be019 | 705 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 DM |
706 | { $$ = convert(IVAL($1), OPf_STACKED, |
707 | prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); | |
708 | TOKEN_GETMAD($1,$$,'o'); | |
709 | TOKEN_GETMAD($2,$$,'('); | |
710 | TOKEN_GETMAD($5,$$,')'); | |
711 | } | |
891be019 | 712 | | term ARROW method '(' listexprcom ')' /* $foo->bar(list) */ |
4633a7c4 | 713 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 714 | append_elem(OP_LIST, |
55497cff | 715 | prepend_elem(OP_LIST, scalar($1), $5), |
f05e27e5 DM |
716 | newUNOP(OP_METHOD, 0, $3))); |
717 | TOKEN_GETMAD($2,$$,'A'); | |
718 | TOKEN_GETMAD($4,$$,'('); | |
719 | TOKEN_GETMAD($6,$$,')'); | |
720 | } | |
891be019 | 721 | | term ARROW method /* $foo->bar */ |
b1524f17 SM |
722 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
723 | append_elem(OP_LIST, scalar($1), | |
f05e27e5 DM |
724 | newUNOP(OP_METHOD, 0, $3))); |
725 | TOKEN_GETMAD($2,$$,'A'); | |
726 | } | |
891be019 | 727 | | METHOD indirob listexpr /* new Class @args */ |
4633a7c4 | 728 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 729 | append_elem(OP_LIST, |
4633a7c4 | 730 | prepend_elem(OP_LIST, $2, $3), |
f05e27e5 DM |
731 | newUNOP(OP_METHOD, 0, $1))); |
732 | } | |
891be019 | 733 | | FUNCMETH indirob '(' listexprcom ')' /* method $object (@args) */ |
4633a7c4 | 734 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 735 | append_elem(OP_LIST, |
4633a7c4 | 736 | prepend_elem(OP_LIST, $2, $4), |
f05e27e5 DM |
737 | newUNOP(OP_METHOD, 0, $1))); |
738 | TOKEN_GETMAD($3,$$,'('); | |
739 | TOKEN_GETMAD($5,$$,')'); | |
740 | } | |
891be019 | 741 | | LSTOP listexpr /* print @args */ |
f05e27e5 DM |
742 | { $$ = convert(IVAL($1), 0, $2); |
743 | TOKEN_GETMAD($1,$$,'o'); | |
744 | } | |
891be019 | 745 | | FUNC '(' listexprcom ')' /* print (@args) */ |
f05e27e5 DM |
746 | { $$ = convert(IVAL($1), 0, $3); |
747 | TOKEN_GETMAD($1,$$,'o'); | |
748 | TOKEN_GETMAD($2,$$,'('); | |
749 | TOKEN_GETMAD($4,$$,')'); | |
750 | } | |
718a7425 | 751 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd | 752 | { SvREFCNT_inc_simple_void(PL_compcv); |
29522234 | 753 | $<opval>$ = newANONATTRSUB($2, 0, Nullop, $3); } |
891be019 | 754 | listexpr %prec LSTOP /* ... @bar */ |
4633a7c4 | 755 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 756 | append_elem(OP_LIST, |
29522234 | 757 | prepend_elem(OP_LIST, $<opval>4, $5), $1)); |
f05e27e5 | 758 | } |
a687059c LW |
759 | ; |
760 | ||
891be019 | 761 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e LW |
762 | method : METHOD |
763 | | scalar | |
764 | ; | |
765 | ||
891be019 SC |
766 | /* Some kind of subscripted expression */ |
767 | subscripted: star '{' expr ';' '}' /* *main::{something} */ | |
768 | /* In this and all the hash accessors, ';' is | |
769 | * provided by the tokeniser */ | |
264e1af3 | 770 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b | 771 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
772 | TOKEN_GETMAD($2,$$,'{'); |
773 | TOKEN_GETMAD($4,$$,';'); | |
774 | TOKEN_GETMAD($5,$$,'}'); | |
775 | } | |
891be019 | 776 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 DM |
777 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
778 | TOKEN_GETMAD($2,$$,'['); | |
779 | TOKEN_GETMAD($4,$$,']'); | |
780 | } | |
891be019 | 781 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 SM |
782 | { $$ = newBINOP(OP_AELEM, 0, |
783 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
784 | scalar($4)); |
785 | TOKEN_GETMAD($2,$$,'a'); | |
786 | TOKEN_GETMAD($3,$$,'['); | |
787 | TOKEN_GETMAD($5,$$,']'); | |
788 | } | |
891be019 | 789 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 SM |
790 | { $$ = newBINOP(OP_AELEM, 0, |
791 | ref(newAVREF($1),OP_RV2AV), | |
f05e27e5 DM |
792 | scalar($3)); |
793 | TOKEN_GETMAD($2,$$,'['); | |
794 | TOKEN_GETMAD($4,$$,']'); | |
795 | } | |
891be019 | 796 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 | 797 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b | 798 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
799 | TOKEN_GETMAD($2,$$,'{'); |
800 | TOKEN_GETMAD($4,$$,';'); | |
801 | TOKEN_GETMAD($5,$$,'}'); | |
802 | } | |
891be019 | 803 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 SM |
804 | { $$ = newBINOP(OP_HELEM, 0, |
805 | ref(newHVREF($1),OP_RV2HV), | |
806 | jmaybe($4)); | |
53a7735b | 807 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
808 | TOKEN_GETMAD($2,$$,'a'); |
809 | TOKEN_GETMAD($3,$$,'{'); | |
810 | TOKEN_GETMAD($5,$$,';'); | |
811 | TOKEN_GETMAD($6,$$,'}'); | |
812 | } | |
891be019 | 813 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 SM |
814 | { $$ = newBINOP(OP_HELEM, 0, |
815 | ref(newHVREF($1),OP_RV2HV), | |
816 | jmaybe($3)); | |
53a7735b | 817 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
818 | TOKEN_GETMAD($2,$$,'{'); |
819 | TOKEN_GETMAD($4,$$,';'); | |
820 | TOKEN_GETMAD($5,$$,'}'); | |
821 | } | |
891be019 | 822 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 | 823 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
824 | newCVREF(0, scalar($1))); |
825 | TOKEN_GETMAD($2,$$,'a'); | |
826 | TOKEN_GETMAD($3,$$,'('); | |
827 | TOKEN_GETMAD($4,$$,')'); | |
828 | } | |
891be019 | 829 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 SM |
830 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
831 | append_elem(OP_LIST, $4, | |
f05e27e5 DM |
832 | newCVREF(0, scalar($1)))); |
833 | TOKEN_GETMAD($2,$$,'a'); | |
834 | TOKEN_GETMAD($3,$$,'('); | |
835 | TOKEN_GETMAD($5,$$,')'); | |
836 | } | |
fad39ff1 | 837 | |
891be019 | 838 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 SM |
839 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
840 | append_elem(OP_LIST, $3, | |
f05e27e5 DM |
841 | newCVREF(0, scalar($1)))); |
842 | TOKEN_GETMAD($2,$$,'('); | |
843 | TOKEN_GETMAD($4,$$,')'); | |
844 | } | |
891be019 | 845 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 | 846 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
847 | newCVREF(0, scalar($1))); |
848 | TOKEN_GETMAD($2,$$,'('); | |
849 | TOKEN_GETMAD($3,$$,')'); | |
850 | } | |
9a9798c2 | 851 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 DM |
852 | { $$ = newSLICEOP(0, $5, $2); |
853 | TOKEN_GETMAD($1,$$,'('); | |
854 | TOKEN_GETMAD($3,$$,')'); | |
855 | TOKEN_GETMAD($4,$$,'['); | |
856 | TOKEN_GETMAD($6,$$,']'); | |
857 | } | |
9a9798c2 | 858 | | '(' ')' '[' expr ']' /* empty list slice! */ |
f05e27e5 DM |
859 | { $$ = newSLICEOP(0, $4, Nullop); |
860 | TOKEN_GETMAD($1,$$,'('); | |
861 | TOKEN_GETMAD($2,$$,')'); | |
862 | TOKEN_GETMAD($3,$$,'['); | |
863 | TOKEN_GETMAD($5,$$,']'); | |
864 | } | |
891be019 | 865 | ; |
fad39ff1 | 866 | |
891be019 | 867 | /* Binary operators between terms */ |
f05e27e5 DM |
868 | termbinop: term ASSIGNOP term /* $x = $y */ |
869 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); | |
870 | TOKEN_GETMAD($2,$$,'o'); | |
871 | } | |
891be019 | 872 | | term POWOP term /* $x ** $y */ |
f05e27e5 DM |
873 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
874 | TOKEN_GETMAD($2,$$,'o'); | |
875 | } | |
891be019 | 876 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 | 877 | { if (IVAL($2) != OP_REPEAT) |
79072805 | 878 | scalar($1); |
f05e27e5 DM |
879 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
880 | TOKEN_GETMAD($2,$$,'o'); | |
881 | } | |
891be019 | 882 | | term ADDOP term /* $x + $y */ |
f05e27e5 DM |
883 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
884 | TOKEN_GETMAD($2,$$,'o'); | |
885 | } | |
891be019 | 886 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 DM |
887 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
888 | TOKEN_GETMAD($2,$$,'o'); | |
889 | } | |
891be019 | 890 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 DM |
891 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
892 | TOKEN_GETMAD($2,$$,'o'); | |
893 | } | |
891be019 | 894 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 DM |
895 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
896 | TOKEN_GETMAD($2,$$,'o'); | |
897 | } | |
891be019 | 898 | | term BITANDOP term /* $x & $y */ |
f05e27e5 DM |
899 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
900 | TOKEN_GETMAD($2,$$,'o'); | |
901 | } | |
891be019 | 902 | | term BITOROP term /* $x | $y */ |
f05e27e5 DM |
903 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
904 | TOKEN_GETMAD($2,$$,'o'); | |
905 | } | |
891be019 | 906 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 DM |
907 | { |
908 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); | |
035e2bcc | 909 | DO_MAD({ |
f05e27e5 DM |
910 | UNOP *op; |
911 | op = (UNOP*)$$; | |
912 | op = (UNOP*)op->op_first; /* get to flop */ | |
913 | op = (UNOP*)op->op_first; /* get to flip */ | |
914 | op = (UNOP*)op->op_first; /* get to range */ | |
915 | token_getmad($2,(OP*)op,'o'); | |
035e2bcc | 916 | }) |
f05e27e5 | 917 | } |
891be019 | 918 | | term ANDAND term /* $x && $y */ |
f05e27e5 DM |
919 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
920 | TOKEN_GETMAD($2,$$,'o'); | |
921 | } | |
891be019 | 922 | | term OROR term /* $x || $y */ |
f05e27e5 DM |
923 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
924 | TOKEN_GETMAD($2,$$,'o'); | |
925 | } | |
c963b151 | 926 | | term DORDOR term /* $x // $y */ |
f05e27e5 DM |
927 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
928 | TOKEN_GETMAD($2,$$,'o'); | |
929 | } | |
891be019 | 930 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 DM |
931 | { $$ = bind_match(IVAL($2), $1, $3); |
932 | TOKEN_GETMAD($2, | |
933 | ($$->op_type == OP_NOT | |
934 | ? ((UNOP*)$$)->op_first : $$), | |
935 | '~'); | |
936 | } | |
891be019 | 937 | ; |
8d063cd8 | 938 | |
891be019 SC |
939 | /* Unary operators and terms */ |
940 | termunop : '-' term %prec UMINUS /* -$x */ | |
f05e27e5 DM |
941 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
942 | TOKEN_GETMAD($1,$$,'o'); | |
943 | } | |
891be019 | 944 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 DM |
945 | { $$ = IF_MAD( |
946 | newUNOP(OP_NULL, 0, $2), | |
947 | $2 | |
948 | ); | |
949 | TOKEN_GETMAD($1,$$,'+'); | |
950 | } | |
891be019 | 951 | | '!' term /* !$x */ |
f05e27e5 DM |
952 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
953 | TOKEN_GETMAD($1,$$,'o'); | |
954 | } | |
891be019 | 955 | | '~' term /* ~$x */ |
f05e27e5 DM |
956 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
957 | TOKEN_GETMAD($1,$$,'o'); | |
958 | } | |
891be019 | 959 | | term POSTINC /* $x++ */ |
79072805 | 960 | { $$ = newUNOP(OP_POSTINC, 0, |
f05e27e5 DM |
961 | mod(scalar($1), OP_POSTINC)); |
962 | TOKEN_GETMAD($2,$$,'o'); | |
963 | } | |
891be019 | 964 | | term POSTDEC /* $x-- */ |
79072805 | 965 | { $$ = newUNOP(OP_POSTDEC, 0, |
f05e27e5 DM |
966 | mod(scalar($1), OP_POSTDEC)); |
967 | TOKEN_GETMAD($2,$$,'o'); | |
968 | } | |
891be019 | 969 | | PREINC term /* ++$x */ |
79072805 | 970 | { $$ = newUNOP(OP_PREINC, 0, |
f05e27e5 DM |
971 | mod(scalar($2), OP_PREINC)); |
972 | TOKEN_GETMAD($1,$$,'o'); | |
973 | } | |
891be019 | 974 | | PREDEC term /* --$x */ |
79072805 | 975 | { $$ = newUNOP(OP_PREDEC, 0, |
f05e27e5 DM |
976 | mod(scalar($2), OP_PREDEC)); |
977 | TOKEN_GETMAD($1,$$,'o'); | |
978 | } | |
891be019 SC |
979 | |
980 | ; | |
981 | ||
982 | /* Constructors for anonymous data */ | |
983 | anonymous: '[' expr ']' | |
f05e27e5 DM |
984 | { $$ = newANONLIST($2); |
985 | TOKEN_GETMAD($1,$$,'['); | |
986 | TOKEN_GETMAD($3,$$,']'); | |
987 | } | |
891be019 | 988 | | '[' ']' |
f05e27e5 DM |
989 | { $$ = newANONLIST(Nullop); |
990 | TOKEN_GETMAD($1,$$,'['); | |
991 | TOKEN_GETMAD($2,$$,']'); | |
992 | } | |
891be019 | 993 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 DM |
994 | { $$ = newANONHASH($2); |
995 | TOKEN_GETMAD($1,$$,'{'); | |
996 | TOKEN_GETMAD($3,$$,';'); | |
997 | TOKEN_GETMAD($4,$$,'}'); | |
998 | } | |
891be019 | 999 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
f05e27e5 DM |
1000 | { $$ = newANONHASH(Nullop); |
1001 | TOKEN_GETMAD($1,$$,'{'); | |
1002 | TOKEN_GETMAD($2,$$,';'); | |
1003 | TOKEN_GETMAD($3,$$,'}'); | |
1004 | } | |
718a7425 | 1005 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd | 1006 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 | 1007 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 | 1008 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 DM |
1009 | OP_GETMAD($3,$$,'s'); |
1010 | OP_GETMAD($4,$$,'a'); | |
f05e27e5 | 1011 | } |
891be019 SC |
1012 | |
1013 | ; | |
1014 | ||
1015 | /* Things called with "do" */ | |
1016 | termdo : DO term %prec UNIOP /* do $filename */ | |
123d08c9 | 1017 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 DM |
1018 | TOKEN_GETMAD($1,$$,'o'); |
1019 | } | |
891be019 | 1020 | | DO block %prec '(' /* do { code */ |
f05e27e5 DM |
1021 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); |
1022 | TOKEN_GETMAD($1,$$,'D'); | |
1023 | } | |
891be019 SC |
1024 | | DO WORD '(' ')' /* do somesub() */ |
1025 | { $$ = newUNOP(OP_ENTERSUB, | |
1026 | OPf_SPECIAL|OPf_STACKED, | |
1027 | prepend_elem(OP_LIST, | |
1028 | scalar(newCVREF( | |
1029 | (OPpENTERSUB_AMPER<<8), | |
1030 | scalar($2) | |
f05e27e5 DM |
1031 | )),Nullop)); dep(); |
1032 | TOKEN_GETMAD($1,$$,'o'); | |
1033 | TOKEN_GETMAD($3,$$,'('); | |
1034 | TOKEN_GETMAD($4,$$,')'); | |
1035 | } | |
891be019 SC |
1036 | | DO WORD '(' expr ')' /* do somesub(@args) */ |
1037 | { $$ = newUNOP(OP_ENTERSUB, | |
1038 | OPf_SPECIAL|OPf_STACKED, | |
1039 | append_elem(OP_LIST, | |
1040 | $4, | |
1041 | scalar(newCVREF( | |
1042 | (OPpENTERSUB_AMPER<<8), | |
1043 | scalar($2) | |
f05e27e5 DM |
1044 | )))); dep(); |
1045 | TOKEN_GETMAD($1,$$,'o'); | |
1046 | TOKEN_GETMAD($3,$$,'('); | |
1047 | TOKEN_GETMAD($5,$$,')'); | |
1048 | } | |
891be019 SC |
1049 | | DO scalar '(' ')' /* do $subref () */ |
1050 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
1051 | prepend_elem(OP_LIST, | |
f05e27e5 DM |
1052 | scalar(newCVREF(0,scalar($2))), Nullop)); dep(); |
1053 | TOKEN_GETMAD($1,$$,'o'); | |
1054 | TOKEN_GETMAD($3,$$,'('); | |
1055 | TOKEN_GETMAD($4,$$,')'); | |
1056 | } | |
891be019 SC |
1057 | | DO scalar '(' expr ')' /* do $subref (@args) */ |
1058 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
1059 | prepend_elem(OP_LIST, | |
1060 | $4, | |
f05e27e5 DM |
1061 | scalar(newCVREF(0,scalar($2))))); dep(); |
1062 | TOKEN_GETMAD($1,$$,'o'); | |
1063 | TOKEN_GETMAD($3,$$,'('); | |
1064 | TOKEN_GETMAD($5,$$,')'); | |
1065 | } | |
891be019 SC |
1066 | |
1067 | ; | |
1068 | ||
1069 | term : termbinop | |
1070 | | termunop | |
1071 | | anonymous | |
1072 | | termdo | |
e9bdcc27 | 1073 | | term '?' term ':' term |
f05e27e5 DM |
1074 | { $$ = newCONDOP(0, $1, $3, $5); |
1075 | TOKEN_GETMAD($2,$$,'?'); | |
1076 | TOKEN_GETMAD($4,$$,':'); | |
1077 | } | |
891be019 | 1078 | | REFGEN term /* \$x, \@y, \%z */ |
f05e27e5 DM |
1079 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); |
1080 | TOKEN_GETMAD($1,$$,'o'); | |
1081 | } | |
09bef843 SB |
1082 | | myattrterm %prec UNIOP |
1083 | { $$ = $1; } | |
1084 | | LOCAL term %prec UNIOP | |
f05e27e5 | 1085 | { $$ = localize($2,IVAL($1)); |
dde83331 | 1086 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 | 1087 | } |
a0d0e21e | 1088 | | '(' expr ')' |
f05e27e5 DM |
1089 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1090 | TOKEN_GETMAD($1,$$,'('); | |
1091 | TOKEN_GETMAD($3,$$,')'); | |
1092 | } | |
8d063cd8 | 1093 | | '(' ')' |
f05e27e5 DM |
1094 | { $$ = sawparens(newNULLLIST()); |
1095 | TOKEN_GETMAD($1,$$,'('); | |
1096 | TOKEN_GETMAD($2,$$,')'); | |
1097 | } | |
79072805 | 1098 | | scalar %prec '(' |
8d063cd8 | 1099 | { $$ = $1; } |
79072805 | 1100 | | star %prec '(' |
8d063cd8 | 1101 | { $$ = $1; } |
79072805 | 1102 | | hsh %prec '(' |
8d063cd8 | 1103 | { $$ = $1; } |
79072805 | 1104 | | ary %prec '(' |
8d063cd8 | 1105 | { $$ = $1; } |
891be019 | 1106 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 | 1107 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 SM |
1108 | | subscripted |
1109 | { $$ = $1; } | |
891be019 | 1110 | | ary '[' expr ']' /* array slice */ |
79072805 LW |
1111 | { $$ = prepend_elem(OP_ASLICE, |
1112 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
1113 | newLISTOP(OP_ASLICE, 0, |
1114 | list($3), | |
f05e27e5 DM |
1115 | ref($1, OP_ASLICE))); |
1116 | TOKEN_GETMAD($2,$$,'['); | |
1117 | TOKEN_GETMAD($4,$$,']'); | |
1118 | } | |
891be019 | 1119 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
79072805 LW |
1120 | { $$ = prepend_elem(OP_HSLICE, |
1121 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
1122 | newLISTOP(OP_HSLICE, 0, |
1123 | list($3), | |
a0d0e21e | 1124 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b | 1125 | PL_parser->expect = XOPERATOR; |
f05e27e5 DM |
1126 | TOKEN_GETMAD($2,$$,'{'); |
1127 | TOKEN_GETMAD($4,$$,';'); | |
1128 | TOKEN_GETMAD($5,$$,'}'); | |
1129 | } | |
79072805 LW |
1130 | | THING %prec '(' |
1131 | { $$ = $1; } | |
891be019 | 1132 | | amper /* &foo; */ |
c07a80fd | 1133 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ecb2f335 | 1134 | | amper '(' ')' /* &foo() */ |
f05e27e5 DM |
1135 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1136 | TOKEN_GETMAD($2,$$,'('); | |
1137 | TOKEN_GETMAD($3,$$,')'); | |
1138 | } | |
891be019 | 1139 | | amper '(' expr ')' /* &foo(@args) */ |
f05e27e5 DM |
1140 | { |
1141 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
1142 | append_elem(OP_LIST, $3, scalar($1))); | |
035e2bcc | 1143 | DO_MAD({ |
f05e27e5 DM |
1144 | OP* op = $$; |
1145 | if (op->op_type == OP_CONST) { /* defeat const fold */ | |
1146 | op = (OP*)op->op_madprop->mad_val; | |
1147 | } | |
1148 | token_getmad($2,op,'('); | |
1149 | token_getmad($4,op,')'); | |
035e2bcc | 1150 | }) |
f05e27e5 | 1151 | } |
891be019 | 1152 | | NOAMP WORD listexpr /* foo(@args) */ |
a0d0e21e | 1153 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 DM |
1154 | append_elem(OP_LIST, $3, scalar($2))); |
1155 | TOKEN_GETMAD($1,$$,'o'); | |
1156 | } | |
891be019 | 1157 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 DM |
1158 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1159 | PL_hints |= HINT_BLOCK_SCOPE; | |
1160 | TOKEN_GETMAD($1,$$,'o'); | |
1161 | } | |
a0d0e21e | 1162 | | LOOPEX term |
f05e27e5 DM |
1163 | { $$ = newLOOPEX(IVAL($1),$2); |
1164 | TOKEN_GETMAD($1,$$,'o'); | |
1165 | } | |
891be019 | 1166 | | NOTOP argexpr /* not $foo */ |
f05e27e5 DM |
1167 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1168 | TOKEN_GETMAD($1,$$,'o'); | |
1169 | } | |
891be019 | 1170 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 DM |
1171 | { $$ = newOP(IVAL($1), 0); |
1172 | TOKEN_GETMAD($1,$$,'o'); | |
1173 | } | |
1174 | | UNIOP block /* eval { foo }* */ | |
1175 | { $$ = newUNOP(IVAL($1), 0, $2); | |
1176 | TOKEN_GETMAD($1,$$,'o'); | |
1177 | } | |
891be019 | 1178 | | UNIOP term /* Unary op */ |
f05e27e5 DM |
1179 | { $$ = newUNOP(IVAL($1), 0, $2); |
1180 | TOKEN_GETMAD($1,$$,'o'); | |
1181 | } | |
d2fdf8fd RGS |
1182 | | REQUIRE /* require, $_ implied */ |
1183 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); | |
1184 | TOKEN_GETMAD($1,$$,'o'); | |
1185 | } | |
1186 | | REQUIRE term /* require Foo */ | |
1187 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); | |
1188 | TOKEN_GETMAD($1,$$,'o'); | |
1189 | } | |
3cd0a11a RGS |
1190 | | UNIOPSUB |
1191 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } | |
891be019 | 1192 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 LW |
1193 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
1194 | append_elem(OP_LIST, $2, scalar($1))); } | |
891be019 | 1195 | | FUNC0 /* Nullary operator */ |
f05e27e5 DM |
1196 | { $$ = newOP(IVAL($1), 0); |
1197 | TOKEN_GETMAD($1,$$,'o'); | |
1198 | } | |
ae986130 | 1199 | | FUNC0 '(' ')' |
f05e27e5 DM |
1200 | { $$ = newOP(IVAL($1), 0); |
1201 | TOKEN_GETMAD($1,$$,'o'); | |
1202 | TOKEN_GETMAD($2,$$,'('); | |
1203 | TOKEN_GETMAD($3,$$,')'); | |
1204 | } | |
891be019 | 1205 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa | 1206 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 1207 | scalar($1)); } |
891be019 | 1208 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 DM |
1209 | { $$ = (IVAL($1) == OP_NOT) |
1210 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) | |
1211 | : newOP(IVAL($1), OPf_SPECIAL); | |
1212 | ||
1213 | TOKEN_GETMAD($1,$$,'o'); | |
1214 | TOKEN_GETMAD($2,$$,'('); | |
1215 | TOKEN_GETMAD($3,$$,')'); | |
1216 | } | |
891be019 | 1217 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 DM |
1218 | { $$ = newUNOP(IVAL($1), 0, $3); |
1219 | TOKEN_GETMAD($1,$$,'o'); | |
1220 | TOKEN_GETMAD($2,$$,'('); | |
1221 | TOKEN_GETMAD($4,$$,')'); | |
1222 | } | |
1223 | | PMFUNC '(' argexpr ')' /* m//, s///, tr/// */ | |
1224 | { $$ = pmruntime($1, $3, 1); | |
1225 | TOKEN_GETMAD($2,$$,'('); | |
1226 | TOKEN_GETMAD($4,$$,')'); | |
1227 | } | |
79072805 | 1228 | | WORD |
378cc40b | 1229 | | listop |
8d063cd8 LW |
1230 | ; |
1231 | ||
891be019 | 1232 | /* "my" declarations, with optional attributes */ |
09bef843 | 1233 | myattrterm: MY myterm myattrlist |
f05e27e5 DM |
1234 | { $$ = my_attrs($2,$3); |
1235 | DO_MAD( | |
1236 | token_getmad($1,$$,'d'); | |
1237 | append_madprops($3->op_madprop, $$, 'a'); | |
1238 | $3->op_madprop = 0; | |
1239 | ) | |
1240 | } | |
09bef843 | 1241 | | MY myterm |
f05e27e5 DM |
1242 | { $$ = localize($2,IVAL($1)); |
1243 | TOKEN_GETMAD($1,$$,'d'); | |
1244 | } | |
09bef843 SB |
1245 | ; |
1246 | ||
891be019 | 1247 | /* Things that can be "my"'d */ |
09bef843 | 1248 | myterm : '(' expr ')' |
f05e27e5 DM |
1249 | { $$ = sawparens($2); |
1250 | TOKEN_GETMAD($1,$$,'('); | |
1251 | TOKEN_GETMAD($3,$$,')'); | |
1252 | } | |
09bef843 | 1253 | | '(' ')' |
f05e27e5 DM |
1254 | { $$ = sawparens(newNULLLIST()); |
1255 | TOKEN_GETMAD($1,$$,'('); | |
1256 | TOKEN_GETMAD($2,$$,')'); | |
1257 | } | |
09bef843 SB |
1258 | | scalar %prec '(' |
1259 | { $$ = $1; } | |
1260 | | hsh %prec '(' | |
1261 | { $$ = $1; } | |
1262 | | ary %prec '(' | |
1263 | { $$ = $1; } | |
1264 | ; | |
1265 | ||
891be019 | 1266 | /* Basic list expressions */ |
fad39ff1 | 1267 | listexpr: /* NULL */ %prec PREC_LOW |
8990e307 | 1268 | { $$ = Nullop; } |
fad39ff1 | 1269 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
1270 | { $$ = $1; } |
1271 | ; | |
1272 | ||
1273 | listexprcom: /* NULL */ | |
1274 | { $$ = Nullop; } | |
79072805 LW |
1275 | | expr |
1276 | { $$ = $1; } | |
a0d0e21e | 1277 | | expr ',' |
f05e27e5 DM |
1278 | { |
1279 | #ifdef MAD | |
1280 | OP* op = newNULLLIST(); | |
1281 | token_getmad($2,op,','); | |
1282 | $$ = append_elem(OP_LIST, $1, op); | |
1283 | #else | |
1284 | $$ = $1; | |
1285 | #endif | |
1286 | ||
1287 | } | |
79072805 LW |
1288 | ; |
1289 | ||
891be019 SC |
1290 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1291 | lexical */ | |
55497cff | 1292 | my_scalar: scalar |
12bd6ede | 1293 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff | 1294 | ; |
1295 | ||
79072805 | 1296 | amper : '&' indirob |
f05e27e5 DM |
1297 | { $$ = newCVREF(IVAL($1),$2); |
1298 | TOKEN_GETMAD($1,$$,'&'); | |
1299 | } | |
a687059c LW |
1300 | ; |
1301 | ||
79072805 | 1302 | scalar : '$' indirob |
f05e27e5 DM |
1303 | { $$ = newSVREF($2); |
1304 | TOKEN_GETMAD($1,$$,'$'); | |
1305 | } | |
a687059c LW |
1306 | ; |
1307 | ||
79072805 | 1308 | ary : '@' indirob |
f05e27e5 DM |
1309 | { $$ = newAVREF($2); |
1310 | TOKEN_GETMAD($1,$$,'@'); | |
1311 | } | |
79072805 LW |
1312 | ; |
1313 | ||
1314 | hsh : '%' indirob | |
f05e27e5 DM |
1315 | { $$ = newHVREF($2); |
1316 | TOKEN_GETMAD($1,$$,'%'); | |
1317 | } | |
79072805 LW |
1318 | ; |
1319 | ||
1320 | arylen : DOLSHARP indirob | |
f05e27e5 DM |
1321 | { $$ = newAVREF($2); |
1322 | TOKEN_GETMAD($1,$$,'l'); | |
1323 | } | |
79072805 LW |
1324 | ; |
1325 | ||
1326 | star : '*' indirob | |
f05e27e5 DM |
1327 | { $$ = newGVREF(0,$2); |
1328 | TOKEN_GETMAD($1,$$,'*'); | |
1329 | } | |
79072805 LW |
1330 | ; |
1331 | ||
891be019 | 1332 | /* Indirect objects */ |
79072805 LW |
1333 | indirob : WORD |
1334 | { $$ = scalar($1); } | |
fad39ff1 | 1335 | | scalar %prec PREC_LOW |
f05e27e5 | 1336 | { $$ = scalar($1); } |
79072805 | 1337 | | block |
a0d0e21e | 1338 | { $$ = scope($1); } |
79072805 | 1339 | |
93a17b20 LW |
1340 | | PRIVATEREF |
1341 | { $$ = $1; } | |
8d063cd8 | 1342 | ; |