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