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1 | /* perly.y |
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2 | * |
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3 | * Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall |
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4 | * Copyright (c) 2007, 2008 by Larry Wall and others |
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5 | * |
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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. |
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8 | * |
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9 | */ |
10 | |
11 | /* |
12 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? |
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13 | * All that is gold does not glitter, not all those who wander are lost.' |
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14 | * |
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15 | * [p.171 of _The Lord of the Rings_, I/x: "Strider"] |
16 | */ |
17 | |
18 | /* |
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19 | * This file holds the grammar for the Perl language. If edited, you need |
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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 | * |
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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 | * |
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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 |
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 $n variables within |
43 | * an action. |
166f8a29 |
44 | */ |
45 | |
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46 | /* Make the parser re-entrant. */ |
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47 | |
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48 | %pure_parser |
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49 | |
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50 | /* FIXME for MAD - is the new mintro on while and until important? */ |
51 | |
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52 | %start prog |
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53 | |
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54 | %union { |
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55 | I32 ival; /* __DEFAULT__ (marker for regen_perly.pl; |
56 | must always be 1st union member) */ |
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57 | char *pval; |
58 | OP *opval; |
59 | GV *gvval; |
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60 | #ifdef PERL_IN_MADLY_C |
61 | TOKEN* p_tkval; |
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62 | TOKEN* i_tkval; |
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63 | #else |
64 | char *p_tkval; |
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65 | I32 i_tkval; |
66 | #endif |
67 | #ifdef PERL_MAD |
68 | TOKEN* tkval; |
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69 | #endif |
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70 | } |
71 | |
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72 | %token <i_tkval> '{' '}' '[' ']' '-' '+' '$' '@' '%' '*' '&' ';' |
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73 | |
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74 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
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75 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
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76 | %token <opval> PLUGEXPR PLUGSTMT |
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77 | %token <p_tkval> LABEL |
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78 | %token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE |
79 | %token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
80 | %token <i_tkval> GIVEN WHEN DEFAULT |
be25f609 |
81 | %token <i_tkval> LOOPEX DOTDOT YADAYADA |
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82 | %token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP |
83 | %token <i_tkval> RELOP EQOP MULOP ADDOP |
84 | %token <i_tkval> DOLSHARP DO HASHBRACK NOAMP |
85 | %token <i_tkval> LOCAL MY MYSUB REQUIRE |
86 | %token <i_tkval> COLONATTR |
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87 | |
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88 | %type <ival> prog progstart remember mremember |
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89 | %type <ival> startsub startanonsub startformsub |
90 | /* FIXME for MAD - are these two ival? */ |
91 | %type <ival> mydefsv mintro |
92 | |
93 | %type <opval> decl format subrout mysubrout package use peg |
94 | |
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95 | %type <opval> block package_block mblock lineseq line loop cond else |
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96 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
a034e688 |
97 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr miexpr |
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98 | %type <opval> listexpr listexprcom indirob listop method |
99 | %type <opval> formname subname proto subbody cont my_scalar |
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100 | %type <opval> subattrlist myattrlist myattrterm myterm |
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101 | %type <opval> termbinop termunop anonymous termdo |
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102 | %type <opval> switch case |
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103 | %type <p_tkval> label |
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104 | |
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105 | %nonassoc <i_tkval> PREC_LOW |
fad39ff1 |
106 | %nonassoc LOOPEX |
107 | |
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108 | %left <i_tkval> OROP DOROP |
109 | %left <i_tkval> ANDOP |
110 | %right <i_tkval> NOTOP |
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111 | %nonassoc LSTOP LSTOPSUB |
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112 | %left <i_tkval> ',' |
113 | %right <i_tkval> ASSIGNOP |
114 | %right <i_tkval> '?' ':' |
be25f609 |
115 | %nonassoc DOTDOT YADAYADA |
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116 | %left <i_tkval> OROR DORDOR |
117 | %left <i_tkval> ANDAND |
118 | %left <i_tkval> BITOROP |
119 | %left <i_tkval> BITANDOP |
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120 | %nonassoc EQOP |
121 | %nonassoc RELOP |
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122 | %nonassoc UNIOP UNIOPSUB |
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123 | %nonassoc REQUIRE |
123d08c9 |
124 | %left <i_tkval> SHIFTOP |
a687059c |
125 | %left ADDOP |
126 | %left MULOP |
123d08c9 |
127 | %left <i_tkval> MATCHOP |
128 | %right <i_tkval> '!' '~' UMINUS REFGEN |
129 | %right <i_tkval> POWOP |
130 | %nonassoc <i_tkval> PREINC PREDEC POSTINC POSTDEC |
131 | %left <i_tkval> ARROW |
132 | %nonassoc <i_tkval> ')' |
133 | %left <i_tkval> '(' |
fad39ff1 |
134 | %left '[' '{' |
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135 | |
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136 | %token <i_tkval> PEG |
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137 | |
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138 | %% /* RULES */ |
139 | |
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140 | /* The whole program */ |
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141 | prog : progstart |
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142 | /*CONTINUED*/ lineseq |
ecb2f335 |
143 | { $$ = $1; newPROG(block_end($1,$2)); } |
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144 | ; |
145 | |
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146 | /* An ordinary block */ |
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147 | block : '{' remember lineseq '}' |
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148 | { if (PL_parser->copline > (line_t)IVAL($1)) |
149 | PL_parser->copline = (line_t)IVAL($1); |
f05e27e5 |
150 | $$ = block_end($2, $3); |
151 | TOKEN_GETMAD($1,$$,'{'); |
152 | TOKEN_GETMAD($4,$$,'}'); |
153 | } |
a0d0e21e |
154 | ; |
155 | |
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156 | remember: /* NULL */ /* start a full lexical scope */ |
157 | { $$ = block_start(TRUE); } |
158 | ; |
159 | |
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160 | mydefsv: /* NULL */ /* lexicalize $_ */ |
d6447115 |
161 | { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); } |
0d863452 |
162 | ; |
163 | |
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164 | progstart: |
165 | { |
53a7735b |
166 | PL_parser->expect = XSTATE; $$ = block_start(TRUE); |
ecb2f335 |
167 | } |
168 | ; |
169 | |
170 | |
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171 | mblock : '{' mremember lineseq '}' |
53a7735b |
172 | { if (PL_parser->copline > (line_t)IVAL($1)) |
173 | PL_parser->copline = (line_t)IVAL($1); |
f05e27e5 |
174 | $$ = block_end($2, $3); |
175 | TOKEN_GETMAD($1,$$,'{'); |
176 | TOKEN_GETMAD($4,$$,'}'); |
177 | } |
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178 | ; |
179 | |
180 | mremember: /* NULL */ /* start a partial lexical scope */ |
181 | { $$ = block_start(FALSE); } |
8d063cd8 |
182 | ; |
183 | |
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184 | /* A collection of "lines" in the program */ |
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185 | lineseq : /* NULL */ |
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186 | { $$ = (OP*)NULL; } |
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187 | | lineseq decl |
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188 | { |
189 | $$ = IF_MAD( |
190 | append_list(OP_LINESEQ, |
191 | (LISTOP*)$1, (LISTOP*)$2), |
192 | $1); |
193 | } |
503de470 |
194 | | lineseq line |
195 | { $$ = append_list(OP_LINESEQ, |
196 | (LISTOP*)$1, (LISTOP*)$2); |
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197 | PL_pad_reset_pending = TRUE; |
503de470 |
198 | if ($1 && $2) |
199 | PL_hints |= HINT_BLOCK_SCOPE; |
200 | } |
8d063cd8 |
201 | ; |
202 | |
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203 | /* A "line" in the program */ |
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204 | line : label cond |
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205 | { $$ = newSTATEOP(0, PVAL($1), $2); |
206 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } |
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207 | | loop /* loops add their own labels */ |
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208 | | switch /* ... and so do switches */ |
209 | { $$ = $1; } |
210 | | label case |
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211 | { $$ = newSTATEOP(0, PVAL($1), $2); } |
8d063cd8 |
212 | | label ';' |
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213 | { |
214 | if (PVAL($1)) { |
215 | $$ = newSTATEOP(0, PVAL($1), newOP(OP_NULL, 0)); |
216 | TOKEN_GETMAD($1,$$,'L'); |
217 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first,';'); |
218 | } |
219 | else { |
220 | $$ = IF_MAD( |
221 | newOP(OP_NULL, 0), |
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222 | (OP*)NULL); |
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223 | PL_parser->copline = NOLINE; |
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224 | TOKEN_FREE($1); |
225 | TOKEN_GETMAD($2,$$,';'); |
226 | } |
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227 | PL_parser->expect = XSTATE; |
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228 | } |
8d063cd8 |
229 | | label sideff ';' |
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230 | { |
231 | $$ = newSTATEOP(0, PVAL($1), $2); |
53a7735b |
232 | PL_parser->expect = XSTATE; |
035e2bcc |
233 | DO_MAD({ |
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234 | /* sideff might already have a nexstate */ |
235 | OP* op = ((LISTOP*)$$)->op_first; |
236 | if (op) { |
237 | while (op->op_sibling && |
238 | op->op_sibling->op_type == OP_NEXTSTATE) |
239 | op = op->op_sibling; |
240 | token_getmad($1,op,'L'); |
241 | token_getmad($3,op,';'); |
242 | } |
035e2bcc |
243 | }) |
f05e27e5 |
244 | } |
4e4da3ac |
245 | | package_block |
246 | { $$ = newSTATEOP(0, NULL, |
247 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
248 | NOLINE, (OP*)NULL, $1, |
702646f2 |
249 | (OP*)NULL, 0)); } |
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250 | | label PLUGSTMT |
251 | { $$ = newSTATEOP(0, PVAL($1), $2); } |
8d063cd8 |
252 | ; |
253 | |
891be019 |
254 | /* An expression which may have a side-effect */ |
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255 | sideff : error |
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256 | { $$ = (OP*)NULL; } |
a687059c |
257 | | expr |
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258 | { $$ = $1; } |
a687059c |
259 | | expr IF expr |
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260 | { $$ = newLOGOP(OP_AND, 0, $3, $1); |
261 | TOKEN_GETMAD($2,$$,'i'); |
262 | } |
a687059c |
263 | | expr UNLESS expr |
f05e27e5 |
264 | { $$ = newLOGOP(OP_OR, 0, $3, $1); |
265 | TOKEN_GETMAD($2,$$,'i'); |
266 | } |
a687059c |
267 | | expr WHILE expr |
f05e27e5 |
268 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); |
269 | TOKEN_GETMAD($2,$$,'w'); |
270 | } |
55497cff |
271 | | expr UNTIL iexpr |
f05e27e5 |
272 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1); |
273 | TOKEN_GETMAD($2,$$,'w'); |
274 | } |
ecca16b0 |
275 | | expr FOR expr |
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276 | { $$ = newFOROP(0, NULL, (line_t)IVAL($2), |
bcabcc50 |
277 | (OP*)NULL, $3, $1, (OP*)NULL); |
f05e27e5 |
278 | TOKEN_GETMAD($2,((LISTOP*)$$)->op_first->op_sibling,'w'); |
279 | } |
f20dcd76 |
280 | | expr WHEN expr |
281 | { $$ = newWHENOP($3, scope($1)); } |
79072805 |
282 | ; |
283 | |
891be019 |
284 | /* else and elsif blocks */ |
79072805 |
285 | else : /* NULL */ |
bcabcc50 |
286 | { $$ = (OP*)NULL; } |
55497cff |
287 | | ELSE mblock |
f05e27e5 |
288 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); |
289 | TOKEN_GETMAD($1,$$,'o'); |
290 | } |
55497cff |
291 | | ELSIF '(' mexpr ')' mblock else |
53a7735b |
292 | { PL_parser->copline = (line_t)IVAL($1); |
f6f3a1fe |
293 | $$ = newCONDOP(0, newSTATEOP(OPf_SPECIAL,NULL,$3), scope($5), $6); |
f05e27e5 |
294 | PL_hints |= HINT_BLOCK_SCOPE; |
295 | TOKEN_GETMAD($1,$$,'I'); |
296 | TOKEN_GETMAD($2,$$,'('); |
297 | TOKEN_GETMAD($4,$$,')'); |
298 | } |
79072805 |
299 | ; |
300 | |
891be019 |
301 | /* Real conditional expressions */ |
55497cff |
302 | cond : IF '(' remember mexpr ')' mblock else |
53a7735b |
303 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 |
304 | $$ = block_end($3, |
f05e27e5 |
305 | newCONDOP(0, $4, scope($6), $7)); |
306 | TOKEN_GETMAD($1,$$,'I'); |
307 | TOKEN_GETMAD($2,$$,'('); |
308 | TOKEN_GETMAD($5,$$,')'); |
309 | } |
55497cff |
310 | | UNLESS '(' remember miexpr ')' mblock else |
53a7735b |
311 | { PL_parser->copline = (line_t)IVAL($1); |
36477c24 |
312 | $$ = block_end($3, |
f05e27e5 |
313 | newCONDOP(0, $4, scope($6), $7)); |
314 | TOKEN_GETMAD($1,$$,'I'); |
315 | TOKEN_GETMAD($2,$$,'('); |
316 | TOKEN_GETMAD($5,$$,')'); |
317 | } |
79072805 |
318 | ; |
319 | |
0d863452 |
320 | /* Cases for a switch statement */ |
321 | case : WHEN '(' remember mexpr ')' mblock |
322 | { $$ = block_end($3, |
323 | newWHENOP($4, scope($6))); } |
324 | | DEFAULT block |
325 | { $$ = newWHENOP(0, scope($2)); } |
326 | ; |
327 | |
891be019 |
328 | /* Continue blocks */ |
79072805 |
329 | cont : /* NULL */ |
bcabcc50 |
330 | { $$ = (OP*)NULL; } |
79072805 |
331 | | CONTINUE block |
f05e27e5 |
332 | { $$ = scope($2); |
333 | TOKEN_GETMAD($1,$$,'o'); |
334 | } |
79072805 |
335 | ; |
336 | |
891be019 |
337 | /* Loops: while, until, for, and a bare block */ |
a034e688 |
338 | loop : label WHILE '(' remember texpr ')' mintro mblock cont |
f05e27e5 |
339 | { OP *innerop; |
5ca68648 |
340 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 |
341 | $$ = block_end($4, |
f05e27e5 |
342 | newSTATEOP(0, PVAL($1), |
bcabcc50 |
343 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 |
344 | IVAL($2), $5, $8, $9, $7))); |
345 | TOKEN_GETMAD($1,innerop,'L'); |
346 | TOKEN_GETMAD($2,innerop,'W'); |
347 | TOKEN_GETMAD($3,innerop,'('); |
348 | TOKEN_GETMAD($6,innerop,')'); |
349 | } |
350 | |
a034e688 |
351 | | label UNTIL '(' remember iexpr ')' mintro mblock cont |
f05e27e5 |
352 | { OP *innerop; |
5ca68648 |
353 | PL_parser->copline = (line_t)IVAL($2); |
36477c24 |
354 | $$ = block_end($4, |
f05e27e5 |
355 | newSTATEOP(0, PVAL($1), |
bcabcc50 |
356 | innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 |
357 | IVAL($2), $5, $8, $9, $7))); |
358 | TOKEN_GETMAD($1,innerop,'L'); |
359 | TOKEN_GETMAD($2,innerop,'W'); |
360 | TOKEN_GETMAD($3,innerop,'('); |
361 | TOKEN_GETMAD($6,innerop,')'); |
362 | } |
bbce6d69 |
363 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
f05e27e5 |
364 | { OP *innerop; |
365 | $$ = block_end($4, |
366 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), |
367 | $5, $7, $9, $10)); |
368 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); |
369 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); |
370 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'d'); |
371 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,'('); |
372 | TOKEN_GETMAD($8,((LISTOP*)innerop)->op_first->op_sibling,')'); |
373 | } |
bbce6d69 |
374 | | label FOR scalar '(' remember mexpr ')' mblock cont |
f05e27e5 |
375 | { OP *innerop; |
376 | $$ = block_end($5, |
377 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), |
378 | mod($3, OP_ENTERLOOP), $6, $8, $9)); |
379 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); |
380 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); |
381 | TOKEN_GETMAD($4,((LISTOP*)innerop)->op_first->op_sibling,'('); |
382 | TOKEN_GETMAD($7,((LISTOP*)innerop)->op_first->op_sibling,')'); |
383 | } |
bbce6d69 |
384 | | label FOR '(' remember mexpr ')' mblock cont |
f05e27e5 |
385 | { OP *innerop; |
386 | $$ = block_end($4, |
387 | innerop = newFOROP(0, PVAL($1), (line_t)IVAL($2), |
bcabcc50 |
388 | (OP*)NULL, $5, $7, $8)); |
f05e27e5 |
389 | TOKEN_GETMAD($1,((LISTOP*)innerop)->op_first,'L'); |
390 | TOKEN_GETMAD($2,((LISTOP*)innerop)->op_first->op_sibling,'W'); |
391 | TOKEN_GETMAD($3,((LISTOP*)innerop)->op_first->op_sibling,'('); |
392 | TOKEN_GETMAD($6,((LISTOP*)innerop)->op_first->op_sibling,')'); |
393 | } |
a034e688 |
394 | | label FOR '(' remember mnexpr ';' texpr ';' mintro mnexpr ')' |
395 | mblock |
8d063cd8 |
396 | /* basically fake up an initialize-while lineseq */ |
36c66720 |
397 | { OP *forop; |
53a7735b |
398 | PL_parser->copline = (line_t)IVAL($2); |
f05e27e5 |
399 | forop = newSTATEOP(0, PVAL($1), |
bcabcc50 |
400 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
f05e27e5 |
401 | IVAL($2), scalar($7), |
a034e688 |
402 | $12, $10, $9)); |
f05e27e5 |
403 | #ifdef MAD |
f05e27e5 |
404 | forop = newUNOP(OP_NULL, 0, append_elem(OP_LINESEQ, |
405 | newSTATEOP(0, |
63031daf |
406 | CopLABEL_alloc(($1)->tk_lval.pval), |
700f8fa5 |
407 | ($5 ? $5 : newOP(OP_NULL, 0)) ), |
f05e27e5 |
408 | forop)); |
409 | |
410 | token_getmad($2,forop,'3'); |
411 | token_getmad($3,forop,'('); |
412 | token_getmad($6,forop,'1'); |
413 | token_getmad($8,forop,'2'); |
414 | token_getmad($11,forop,')'); |
415 | token_getmad($1,forop,'L'); |
416 | #else |
36c66720 |
417 | if ($5) { |
418 | forop = append_elem(OP_LINESEQ, |
63031daf |
419 | newSTATEOP(0, CopLABEL_alloc($1), $5), |
36c66720 |
420 | forop); |
421 | } |
422 | |
f05e27e5 |
423 | |
424 | #endif |
36c66720 |
425 | $$ = block_end($4, forop); } |
79072805 |
426 | | label block cont /* a block is a loop that happens once */ |
f05e27e5 |
427 | { $$ = newSTATEOP(0, PVAL($1), |
bcabcc50 |
428 | newWHILEOP(0, 1, (LOOP*)(OP*)NULL, |
429 | NOLINE, (OP*)NULL, $2, $3, 0)); |
f05e27e5 |
430 | TOKEN_GETMAD($1,((LISTOP*)$$)->op_first,'L'); } |
8d063cd8 |
431 | ; |
432 | |
0d863452 |
433 | /* Switch blocks */ |
434 | switch : label GIVEN '(' remember mydefsv mexpr ')' mblock |
5ca68648 |
435 | { PL_parser->copline = (line_t) IVAL($2); |
0d863452 |
436 | $$ = block_end($4, |
f05e27e5 |
437 | newSTATEOP(0, PVAL($1), |
0d863452 |
438 | newGIVENOP($6, scope($8), |
439 | (PADOFFSET) $5) )); } |
440 | ; |
441 | |
a034e688 |
442 | /* determine whether there are any new my declarations */ |
443 | mintro : /* NULL */ |
444 | { $$ = (PL_min_intro_pending && |
445 | PL_max_intro_pending >= PL_min_intro_pending); |
446 | intro_my(); } |
447 | |
891be019 |
448 | /* Normal expression */ |
8d063cd8 |
449 | nexpr : /* NULL */ |
bcabcc50 |
450 | { $$ = (OP*)NULL; } |
8d063cd8 |
451 | | sideff |
452 | ; |
453 | |
891be019 |
454 | /* Boolean expression */ |
8d063cd8 |
455 | texpr : /* NULL means true */ |
f05e27e5 |
456 | { YYSTYPE tmplval; |
457 | (void)scan_num("1", &tmplval); |
458 | $$ = tmplval.opval; } |
8d063cd8 |
459 | | expr |
460 | ; |
461 | |
891be019 |
462 | /* Inverted boolean expression */ |
55497cff |
463 | iexpr : expr |
464 | { $$ = invert(scalar($1)); } |
465 | ; |
466 | |
891be019 |
467 | /* Expression with its own lexical scope */ |
55497cff |
468 | mexpr : expr |
bbce6d69 |
469 | { $$ = $1; intro_my(); } |
470 | ; |
471 | |
472 | mnexpr : nexpr |
473 | { $$ = $1; intro_my(); } |
55497cff |
474 | ; |
475 | |
55497cff |
476 | miexpr : iexpr |
bbce6d69 |
477 | { $$ = $1; intro_my(); } |
55497cff |
478 | ; |
479 | |
891be019 |
480 | /* Optional "MAIN:"-style loop labels */ |
8d063cd8 |
481 | label : /* empty */ |
f05e27e5 |
482 | { |
483 | #ifdef MAD |
484 | YYSTYPE tmplval; |
1a9a51d4 |
485 | tmplval.pval = NULL; |
f05e27e5 |
486 | $$ = newTOKEN(OP_NULL, tmplval, 0); |
487 | #else |
1a9a51d4 |
488 | $$ = NULL; |
f05e27e5 |
489 | #endif |
490 | } |
32c2e4fb |
491 | | LABEL |
8d063cd8 |
492 | ; |
493 | |
f05e27e5 |
494 | /* Some kind of declaration - just hang on peg in the parse tree */ |
8d063cd8 |
495 | decl : format |
f05e27e5 |
496 | { $$ = $1; } |
8d063cd8 |
497 | | subrout |
f05e27e5 |
498 | { $$ = $1; } |
09bef843 |
499 | | mysubrout |
f05e27e5 |
500 | { $$ = $1; } |
a687059c |
501 | | package |
f05e27e5 |
502 | { $$ = $1; } |
a0d0e21e |
503 | | use |
f05e27e5 |
504 | { $$ = $1; } |
505 | |
506 | /* these two are only used by MAD */ |
507 | |
508 | | peg |
509 | { $$ = $1; } |
510 | ; |
511 | |
512 | peg : PEG |
513 | { $$ = newOP(OP_NULL,0); |
514 | TOKEN_GETMAD($1,$$,'p'); |
515 | } |
8d063cd8 |
516 | ; |
517 | |
718a7425 |
518 | format : FORMAT startformsub formname block |
421f30ed |
519 | { |
520 | CV *fmtcv = PL_compcv; |
521 | SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 |
522 | #ifdef MAD |
718a7425 |
523 | $$ = newFORM($2, $3, $4); |
f05e27e5 |
524 | prepend_madprops($1->tk_mad, $$, 'F'); |
525 | $1->tk_mad = 0; |
526 | token_free($1); |
527 | #else |
718a7425 |
528 | newFORM($2, $3, $4); |
bcabcc50 |
529 | $$ = (OP*)NULL; |
f05e27e5 |
530 | #endif |
421f30ed |
531 | if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) { |
532 | SvREFCNT_inc_simple_void(fmtcv); |
533 | pad_add_anon((SV*)fmtcv, OP_NULL); |
534 | } |
f05e27e5 |
535 | } |
44a8e56a |
536 | ; |
537 | |
538 | formname: WORD { $$ = $1; } |
bcabcc50 |
539 | | /* NULL */ { $$ = (OP*)NULL; } |
8d063cd8 |
540 | ; |
541 | |
891be019 |
542 | /* Unimplemented "my sub foo { }" */ |
718a7425 |
543 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
5a5094bd |
544 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 |
545 | #ifdef MAD |
718a7425 |
546 | $$ = newMYSUB($2, $3, $4, $5, $6); |
f05e27e5 |
547 | token_getmad($1,$$,'d'); |
548 | #else |
718a7425 |
549 | newMYSUB($2, $3, $4, $5, $6); |
bcabcc50 |
550 | $$ = (OP*)NULL; |
f05e27e5 |
551 | #endif |
552 | } |
09bef843 |
553 | ; |
554 | |
891be019 |
555 | /* Subroutine definition */ |
718a7425 |
556 | subrout : SUB startsub subname proto subattrlist subbody |
5a5094bd |
557 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 |
558 | #ifdef MAD |
035e2bcc |
559 | { |
560 | OP* o = newSVOP(OP_ANONCODE, 0, |
561 | (SV*)newATTRSUB($2, $3, $4, $5, $6)); |
562 | $$ = newOP(OP_NULL,0); |
563 | op_getmad(o,$$,'&'); |
564 | op_getmad($3,$$,'n'); |
565 | op_getmad($4,$$,'s'); |
566 | op_getmad($5,$$,'a'); |
567 | token_getmad($1,$$,'d'); |
568 | append_madprops($6->op_madprop, $$, 0); |
569 | $6->op_madprop = 0; |
570 | } |
f05e27e5 |
571 | #else |
718a7425 |
572 | newATTRSUB($2, $3, $4, $5, $6); |
bcabcc50 |
573 | $$ = (OP*)NULL; |
f05e27e5 |
574 | #endif |
575 | } |
28757baa |
576 | ; |
577 | |
fa83b5b6 |
578 | startsub: /* NULL */ /* start a regular subroutine scope */ |
a8ff2fa6 |
579 | { $$ = start_subparse(FALSE, 0); |
580 | SAVEFREESV(PL_compcv); } |
f05e27e5 |
581 | |
28757baa |
582 | ; |
583 | |
584 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ |
a8ff2fa6 |
585 | { $$ = start_subparse(FALSE, CVf_ANON); |
586 | SAVEFREESV(PL_compcv); } |
28757baa |
587 | ; |
588 | |
44a8e56a |
589 | startformsub: /* NULL */ /* start a format subroutine scope */ |
a8ff2fa6 |
590 | { $$ = start_subparse(TRUE, 0); |
591 | SAVEFREESV(PL_compcv); } |
44a8e56a |
592 | ; |
593 | |
891be019 |
594 | /* Name of a subroutine - must be a bareword, could be special */ |
2596d9fe |
595 | subname : WORD { const char *const name = SvPV_nolen_const(((SVOP*)$1)->op_sv); |
e858de61 |
596 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
3c10abe3 |
597 | || strEQ(name, "INIT") || strEQ(name, "CHECK") |
598 | || strEQ(name, "UNITCHECK")) |
1aff0e91 |
599 | CvSPECIAL_on(PL_compcv); |
28757baa |
600 | $$ = $1; } |
a0d0e21e |
601 | ; |
602 | |
891be019 |
603 | /* Subroutine prototype */ |
4633a7c4 |
604 | proto : /* NULL */ |
bcabcc50 |
605 | { $$ = (OP*)NULL; } |
4633a7c4 |
606 | | THING |
607 | ; |
28757baa |
608 | |
891be019 |
609 | /* Optional list of subroutine attributes */ |
09bef843 |
610 | subattrlist: /* NULL */ |
bcabcc50 |
611 | { $$ = (OP*)NULL; } |
09bef843 |
612 | | COLONATTR THING |
f05e27e5 |
613 | { $$ = $2; |
614 | TOKEN_GETMAD($1,$$,':'); |
615 | } |
09bef843 |
616 | | COLONATTR |
f05e27e5 |
617 | { $$ = IF_MAD( |
618 | newOP(OP_NULL, 0), |
bcabcc50 |
619 | (OP*)NULL |
f05e27e5 |
620 | ); |
621 | TOKEN_GETMAD($1,$$,':'); |
622 | } |
09bef843 |
623 | ; |
624 | |
891be019 |
625 | /* List of attributes for a "my" variable declaration */ |
09bef843 |
626 | myattrlist: COLONATTR THING |
f05e27e5 |
627 | { $$ = $2; |
628 | TOKEN_GETMAD($1,$$,':'); |
629 | } |
09bef843 |
630 | | COLONATTR |
f05e27e5 |
631 | { $$ = IF_MAD( |
632 | newOP(OP_NULL, 0), |
bcabcc50 |
633 | (OP*)NULL |
f05e27e5 |
634 | ); |
635 | TOKEN_GETMAD($1,$$,':'); |
636 | } |
09bef843 |
637 | ; |
638 | |
891be019 |
639 | /* Subroutine body - either null or a block */ |
28757baa |
640 | subbody : block { $$ = $1; } |
f05e27e5 |
641 | | ';' { $$ = IF_MAD( |
642 | newOP(OP_NULL,0), |
bcabcc50 |
643 | (OP*)NULL |
f05e27e5 |
644 | ); |
53a7735b |
645 | PL_parser->expect = XSTATE; |
f05e27e5 |
646 | TOKEN_GETMAD($1,$$,';'); |
647 | } |
8d063cd8 |
648 | ; |
649 | |
6fa4d285 |
650 | package : PACKAGE WORD WORD ';' |
f05e27e5 |
651 | { |
652 | #ifdef MAD |
0f811330 |
653 | $$ = package($3); |
654 | token_getmad($1,$$,'o'); |
655 | if ($2) |
656 | package_version($2); |
657 | token_getmad($4,$$,';'); |
f05e27e5 |
658 | #else |
6fa4d285 |
659 | package($3); |
0f811330 |
660 | if ($2) |
661 | package_version($2); |
bcabcc50 |
662 | $$ = (OP*)NULL; |
0f811330 |
663 | #endif |
f05e27e5 |
664 | } |
a687059c |
665 | ; |
666 | |
4e4da3ac |
667 | package_block: PACKAGE WORD WORD '{' remember |
668 | { |
af5050ac |
669 | int save_3_latefree = $3->op_latefree; |
670 | $3->op_latefree = 1; |
4e4da3ac |
671 | package($3); |
af5050ac |
672 | $3->op_latefree = save_3_latefree; |
673 | if ($2) { |
674 | int save_2_latefree = $2->op_latefree; |
675 | $2->op_latefree = 1; |
4e4da3ac |
676 | package_version($2); |
af5050ac |
677 | $2->op_latefree = save_2_latefree; |
678 | } |
4e4da3ac |
679 | } |
680 | lineseq '}' |
681 | { if (PL_parser->copline > (line_t)IVAL($4)) |
682 | PL_parser->copline = (line_t)IVAL($4); |
683 | $$ = block_end($5, $7); |
684 | TOKEN_GETMAD($4,$$,'{'); |
685 | TOKEN_GETMAD($8,$$,'}'); |
af5050ac |
686 | op_free($3); |
687 | if ($2) |
688 | op_free($2); |
4e4da3ac |
689 | } |
690 | ; |
691 | |
718a7425 |
692 | use : USE startsub |
1aff0e91 |
693 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa |
694 | WORD WORD listexpr ';' |
5a5094bd |
695 | { SvREFCNT_inc_simple_void(PL_compcv); |
f05e27e5 |
696 | #ifdef MAD |
718a7425 |
697 | $$ = utilize(IVAL($1), $2, $4, $5, $6); |
f05e27e5 |
698 | token_getmad($1,$$,'o'); |
718a7425 |
699 | token_getmad($7,$$,';'); |
5486870f |
700 | if (PL_parser->rsfp_filters && |
701 | AvFILLp(PL_parser->rsfp_filters) >= 0) |
a22f28a4 |
702 | append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0); |
f05e27e5 |
703 | #else |
718a7425 |
704 | utilize(IVAL($1), $2, $4, $5, $6); |
bcabcc50 |
705 | $$ = (OP*)NULL; |
f05e27e5 |
706 | #endif |
707 | } |
85e6fe83 |
708 | ; |
709 | |
891be019 |
710 | /* Ordinary expressions; logical combinations */ |
a0d0e21e |
711 | expr : expr ANDOP expr |
f05e27e5 |
712 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
713 | TOKEN_GETMAD($2,$$,'o'); |
714 | } |
a0d0e21e |
715 | | expr OROP expr |
f05e27e5 |
716 | { $$ = newLOGOP(IVAL($2), 0, $1, $3); |
717 | TOKEN_GETMAD($2,$$,'o'); |
718 | } |
c963b151 |
719 | | expr DOROP expr |
f05e27e5 |
720 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
721 | TOKEN_GETMAD($2,$$,'o'); |
722 | } |
fad39ff1 |
723 | | argexpr %prec PREC_LOW |
a0d0e21e |
724 | ; |
725 | |
891be019 |
726 | /* Expressions are a list of terms joined by commas */ |
a0d0e21e |
727 | argexpr : argexpr ',' |
f05e27e5 |
728 | { |
729 | #ifdef MAD |
730 | OP* op = newNULLLIST(); |
731 | token_getmad($2,op,','); |
732 | $$ = append_elem(OP_LIST, $1, op); |
733 | #else |
734 | $$ = $1; |
735 | #endif |
736 | } |
a0d0e21e |
737 | | argexpr ',' term |
f05e27e5 |
738 | { |
29522234 |
739 | OP* term = $3; |
f05e27e5 |
740 | DO_MAD( |
29522234 |
741 | term = newUNOP(OP_NULL, 0, term); |
742 | token_getmad($2,term,','); |
f05e27e5 |
743 | ) |
29522234 |
744 | $$ = append_elem(OP_LIST, $1, term); |
f05e27e5 |
745 | } |
fad39ff1 |
746 | | term %prec PREC_LOW |
8d063cd8 |
747 | ; |
748 | |
891be019 |
749 | /* List operators */ |
ad4673e5 |
750 | listop : LSTOP indirob argexpr /* map {...} @args or print $fh @args */ |
f05e27e5 |
751 | { $$ = convert(IVAL($1), OPf_STACKED, |
752 | prepend_elem(OP_LIST, newGVREF(IVAL($1),$2), $3) ); |
753 | TOKEN_GETMAD($1,$$,'o'); |
754 | } |
891be019 |
755 | | FUNC '(' indirob expr ')' /* print ($fh @args */ |
f05e27e5 |
756 | { $$ = convert(IVAL($1), OPf_STACKED, |
757 | prepend_elem(OP_LIST, newGVREF(IVAL($1),$3), $4) ); |
758 | TOKEN_GETMAD($1,$$,'o'); |
759 | TOKEN_GETMAD($2,$$,'('); |
760 | TOKEN_GETMAD($5,$$,')'); |
761 | } |
891be019 |
762 | | term ARROW method '(' listexprcom ')' /* $foo->bar(list) */ |
4633a7c4 |
763 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
764 | append_elem(OP_LIST, |
55497cff |
765 | prepend_elem(OP_LIST, scalar($1), $5), |
f05e27e5 |
766 | newUNOP(OP_METHOD, 0, $3))); |
767 | TOKEN_GETMAD($2,$$,'A'); |
768 | TOKEN_GETMAD($4,$$,'('); |
769 | TOKEN_GETMAD($6,$$,')'); |
770 | } |
891be019 |
771 | | term ARROW method /* $foo->bar */ |
b1524f17 |
772 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
773 | append_elem(OP_LIST, scalar($1), |
f05e27e5 |
774 | newUNOP(OP_METHOD, 0, $3))); |
775 | TOKEN_GETMAD($2,$$,'A'); |
776 | } |
891be019 |
777 | | METHOD indirob listexpr /* new Class @args */ |
4633a7c4 |
778 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
779 | append_elem(OP_LIST, |
4633a7c4 |
780 | prepend_elem(OP_LIST, $2, $3), |
f05e27e5 |
781 | newUNOP(OP_METHOD, 0, $1))); |
782 | } |
891be019 |
783 | | FUNCMETH indirob '(' listexprcom ')' /* method $object (@args) */ |
4633a7c4 |
784 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
785 | append_elem(OP_LIST, |
4633a7c4 |
786 | prepend_elem(OP_LIST, $2, $4), |
f05e27e5 |
787 | newUNOP(OP_METHOD, 0, $1))); |
788 | TOKEN_GETMAD($3,$$,'('); |
789 | TOKEN_GETMAD($5,$$,')'); |
790 | } |
891be019 |
791 | | LSTOP listexpr /* print @args */ |
f05e27e5 |
792 | { $$ = convert(IVAL($1), 0, $2); |
793 | TOKEN_GETMAD($1,$$,'o'); |
794 | } |
891be019 |
795 | | FUNC '(' listexprcom ')' /* print (@args) */ |
f05e27e5 |
796 | { $$ = convert(IVAL($1), 0, $3); |
797 | TOKEN_GETMAD($1,$$,'o'); |
798 | TOKEN_GETMAD($2,$$,'('); |
799 | TOKEN_GETMAD($4,$$,')'); |
800 | } |
718a7425 |
801 | | LSTOPSUB startanonsub block /* sub f(&@); f { foo } ... */ |
5a5094bd |
802 | { SvREFCNT_inc_simple_void(PL_compcv); |
bcabcc50 |
803 | $<opval>$ = newANONATTRSUB($2, 0, (OP*)NULL, $3); } |
891be019 |
804 | listexpr %prec LSTOP /* ... @bar */ |
4633a7c4 |
805 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa |
806 | append_elem(OP_LIST, |
29522234 |
807 | prepend_elem(OP_LIST, $<opval>4, $5), $1)); |
f05e27e5 |
808 | } |
a687059c |
809 | ; |
810 | |
891be019 |
811 | /* Names of methods. May use $object->$methodname */ |
a0d0e21e |
812 | method : METHOD |
813 | | scalar |
814 | ; |
815 | |
891be019 |
816 | /* Some kind of subscripted expression */ |
817 | subscripted: star '{' expr ';' '}' /* *main::{something} */ |
818 | /* In this and all the hash accessors, ';' is |
819 | * provided by the tokeniser */ |
264e1af3 |
820 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); |
53a7735b |
821 | PL_parser->expect = XOPERATOR; |
f05e27e5 |
822 | TOKEN_GETMAD($2,$$,'{'); |
823 | TOKEN_GETMAD($4,$$,';'); |
824 | TOKEN_GETMAD($5,$$,'}'); |
825 | } |
891be019 |
826 | | scalar '[' expr ']' /* $array[$element] */ |
f05e27e5 |
827 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); |
828 | TOKEN_GETMAD($2,$$,'['); |
829 | TOKEN_GETMAD($4,$$,']'); |
830 | } |
891be019 |
831 | | term ARROW '[' expr ']' /* somearef->[$element] */ |
fad39ff1 |
832 | { $$ = newBINOP(OP_AELEM, 0, |
833 | ref(newAVREF($1),OP_RV2AV), |
f05e27e5 |
834 | scalar($4)); |
835 | TOKEN_GETMAD($2,$$,'a'); |
836 | TOKEN_GETMAD($3,$$,'['); |
837 | TOKEN_GETMAD($5,$$,']'); |
838 | } |
891be019 |
839 | | subscripted '[' expr ']' /* $foo->[$bar]->[$baz] */ |
fad39ff1 |
840 | { $$ = newBINOP(OP_AELEM, 0, |
841 | ref(newAVREF($1),OP_RV2AV), |
f05e27e5 |
842 | scalar($3)); |
843 | TOKEN_GETMAD($2,$$,'['); |
844 | TOKEN_GETMAD($4,$$,']'); |
845 | } |
891be019 |
846 | | scalar '{' expr ';' '}' /* $foo->{bar();} */ |
fad39ff1 |
847 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
53a7735b |
848 | PL_parser->expect = XOPERATOR; |
f05e27e5 |
849 | TOKEN_GETMAD($2,$$,'{'); |
850 | TOKEN_GETMAD($4,$$,';'); |
851 | TOKEN_GETMAD($5,$$,'}'); |
852 | } |
891be019 |
853 | | term ARROW '{' expr ';' '}' /* somehref->{bar();} */ |
fad39ff1 |
854 | { $$ = newBINOP(OP_HELEM, 0, |
855 | ref(newHVREF($1),OP_RV2HV), |
856 | jmaybe($4)); |
53a7735b |
857 | PL_parser->expect = XOPERATOR; |
f05e27e5 |
858 | TOKEN_GETMAD($2,$$,'a'); |
859 | TOKEN_GETMAD($3,$$,'{'); |
860 | TOKEN_GETMAD($5,$$,';'); |
861 | TOKEN_GETMAD($6,$$,'}'); |
862 | } |
891be019 |
863 | | subscripted '{' expr ';' '}' /* $foo->[bar]->{baz;} */ |
fad39ff1 |
864 | { $$ = newBINOP(OP_HELEM, 0, |
865 | ref(newHVREF($1),OP_RV2HV), |
866 | jmaybe($3)); |
53a7735b |
867 | PL_parser->expect = XOPERATOR; |
f05e27e5 |
868 | TOKEN_GETMAD($2,$$,'{'); |
869 | TOKEN_GETMAD($4,$$,';'); |
870 | TOKEN_GETMAD($5,$$,'}'); |
871 | } |
891be019 |
872 | | term ARROW '(' ')' /* $subref->() */ |
fad39ff1 |
873 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 |
874 | newCVREF(0, scalar($1))); |
875 | TOKEN_GETMAD($2,$$,'a'); |
876 | TOKEN_GETMAD($3,$$,'('); |
877 | TOKEN_GETMAD($4,$$,')'); |
878 | } |
891be019 |
879 | | term ARROW '(' expr ')' /* $subref->(@args) */ |
fad39ff1 |
880 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
881 | append_elem(OP_LIST, $4, |
f05e27e5 |
882 | newCVREF(0, scalar($1)))); |
883 | TOKEN_GETMAD($2,$$,'a'); |
884 | TOKEN_GETMAD($3,$$,'('); |
885 | TOKEN_GETMAD($5,$$,')'); |
886 | } |
fad39ff1 |
887 | |
891be019 |
888 | | subscripted '(' expr ')' /* $foo->{bar}->(@args) */ |
fad39ff1 |
889 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
890 | append_elem(OP_LIST, $3, |
f05e27e5 |
891 | newCVREF(0, scalar($1)))); |
892 | TOKEN_GETMAD($2,$$,'('); |
893 | TOKEN_GETMAD($4,$$,')'); |
894 | } |
891be019 |
895 | | subscripted '(' ')' /* $foo->{bar}->() */ |
fad39ff1 |
896 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 |
897 | newCVREF(0, scalar($1))); |
898 | TOKEN_GETMAD($2,$$,'('); |
899 | TOKEN_GETMAD($3,$$,')'); |
900 | } |
9a9798c2 |
901 | | '(' expr ')' '[' expr ']' /* list slice */ |
f05e27e5 |
902 | { $$ = newSLICEOP(0, $5, $2); |
903 | TOKEN_GETMAD($1,$$,'('); |
904 | TOKEN_GETMAD($3,$$,')'); |
905 | TOKEN_GETMAD($4,$$,'['); |
906 | TOKEN_GETMAD($6,$$,']'); |
907 | } |
9a9798c2 |
908 | | '(' ')' '[' expr ']' /* empty list slice! */ |
bcabcc50 |
909 | { $$ = newSLICEOP(0, $4, (OP*)NULL); |
f05e27e5 |
910 | TOKEN_GETMAD($1,$$,'('); |
911 | TOKEN_GETMAD($2,$$,')'); |
912 | TOKEN_GETMAD($3,$$,'['); |
913 | TOKEN_GETMAD($5,$$,']'); |
914 | } |
891be019 |
915 | ; |
fad39ff1 |
916 | |
891be019 |
917 | /* Binary operators between terms */ |
f05e27e5 |
918 | termbinop: term ASSIGNOP term /* $x = $y */ |
919 | { $$ = newASSIGNOP(OPf_STACKED, $1, IVAL($2), $3); |
920 | TOKEN_GETMAD($2,$$,'o'); |
921 | } |
891be019 |
922 | | term POWOP term /* $x ** $y */ |
f05e27e5 |
923 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
924 | TOKEN_GETMAD($2,$$,'o'); |
925 | } |
891be019 |
926 | | term MULOP term /* $x * $y, $x x $y */ |
f05e27e5 |
927 | { if (IVAL($2) != OP_REPEAT) |
79072805 |
928 | scalar($1); |
f05e27e5 |
929 | $$ = newBINOP(IVAL($2), 0, $1, scalar($3)); |
930 | TOKEN_GETMAD($2,$$,'o'); |
931 | } |
891be019 |
932 | | term ADDOP term /* $x + $y */ |
f05e27e5 |
933 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
934 | TOKEN_GETMAD($2,$$,'o'); |
935 | } |
891be019 |
936 | | term SHIFTOP term /* $x >> $y, $x << $y */ |
f05e27e5 |
937 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
938 | TOKEN_GETMAD($2,$$,'o'); |
939 | } |
891be019 |
940 | | term RELOP term /* $x > $y, etc. */ |
f05e27e5 |
941 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
942 | TOKEN_GETMAD($2,$$,'o'); |
943 | } |
891be019 |
944 | | term EQOP term /* $x == $y, $x eq $y */ |
f05e27e5 |
945 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
946 | TOKEN_GETMAD($2,$$,'o'); |
947 | } |
891be019 |
948 | | term BITANDOP term /* $x & $y */ |
f05e27e5 |
949 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
950 | TOKEN_GETMAD($2,$$,'o'); |
951 | } |
891be019 |
952 | | term BITOROP term /* $x | $y */ |
f05e27e5 |
953 | { $$ = newBINOP(IVAL($2), 0, scalar($1), scalar($3)); |
954 | TOKEN_GETMAD($2,$$,'o'); |
955 | } |
891be019 |
956 | | term DOTDOT term /* $x..$y, $x...$y */ |
f05e27e5 |
957 | { |
958 | $$ = newRANGE(IVAL($2), scalar($1), scalar($3)); |
035e2bcc |
959 | DO_MAD({ |
f05e27e5 |
960 | UNOP *op; |
961 | op = (UNOP*)$$; |
962 | op = (UNOP*)op->op_first; /* get to flop */ |
963 | op = (UNOP*)op->op_first; /* get to flip */ |
964 | op = (UNOP*)op->op_first; /* get to range */ |
965 | token_getmad($2,(OP*)op,'o'); |
035e2bcc |
966 | }) |
f05e27e5 |
967 | } |
891be019 |
968 | | term ANDAND term /* $x && $y */ |
f05e27e5 |
969 | { $$ = newLOGOP(OP_AND, 0, $1, $3); |
970 | TOKEN_GETMAD($2,$$,'o'); |
971 | } |
891be019 |
972 | | term OROR term /* $x || $y */ |
f05e27e5 |
973 | { $$ = newLOGOP(OP_OR, 0, $1, $3); |
974 | TOKEN_GETMAD($2,$$,'o'); |
975 | } |
c963b151 |
976 | | term DORDOR term /* $x // $y */ |
f05e27e5 |
977 | { $$ = newLOGOP(OP_DOR, 0, $1, $3); |
978 | TOKEN_GETMAD($2,$$,'o'); |
979 | } |
891be019 |
980 | | term MATCHOP term /* $x =~ /$y/ */ |
f05e27e5 |
981 | { $$ = bind_match(IVAL($2), $1, $3); |
982 | TOKEN_GETMAD($2, |
983 | ($$->op_type == OP_NOT |
984 | ? ((UNOP*)$$)->op_first : $$), |
985 | '~'); |
986 | } |
891be019 |
987 | ; |
8d063cd8 |
988 | |
891be019 |
989 | /* Unary operators and terms */ |
990 | termunop : '-' term %prec UMINUS /* -$x */ |
f05e27e5 |
991 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); |
992 | TOKEN_GETMAD($1,$$,'o'); |
993 | } |
891be019 |
994 | | '+' term %prec UMINUS /* +$x */ |
f05e27e5 |
995 | { $$ = IF_MAD( |
996 | newUNOP(OP_NULL, 0, $2), |
997 | $2 |
998 | ); |
999 | TOKEN_GETMAD($1,$$,'+'); |
1000 | } |
891be019 |
1001 | | '!' term /* !$x */ |
f05e27e5 |
1002 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1003 | TOKEN_GETMAD($1,$$,'o'); |
1004 | } |
891be019 |
1005 | | '~' term /* ~$x */ |
f05e27e5 |
1006 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2)); |
1007 | TOKEN_GETMAD($1,$$,'o'); |
1008 | } |
891be019 |
1009 | | term POSTINC /* $x++ */ |
79072805 |
1010 | { $$ = newUNOP(OP_POSTINC, 0, |
f05e27e5 |
1011 | mod(scalar($1), OP_POSTINC)); |
1012 | TOKEN_GETMAD($2,$$,'o'); |
1013 | } |
891be019 |
1014 | | term POSTDEC /* $x-- */ |
79072805 |
1015 | { $$ = newUNOP(OP_POSTDEC, 0, |
f05e27e5 |
1016 | mod(scalar($1), OP_POSTDEC)); |
1017 | TOKEN_GETMAD($2,$$,'o'); |
1018 | } |
891be019 |
1019 | | PREINC term /* ++$x */ |
79072805 |
1020 | { $$ = newUNOP(OP_PREINC, 0, |
f05e27e5 |
1021 | mod(scalar($2), OP_PREINC)); |
1022 | TOKEN_GETMAD($1,$$,'o'); |
1023 | } |
891be019 |
1024 | | PREDEC term /* --$x */ |
79072805 |
1025 | { $$ = newUNOP(OP_PREDEC, 0, |
f05e27e5 |
1026 | mod(scalar($2), OP_PREDEC)); |
1027 | TOKEN_GETMAD($1,$$,'o'); |
1028 | } |
891be019 |
1029 | |
1030 | ; |
1031 | |
1032 | /* Constructors for anonymous data */ |
1033 | anonymous: '[' expr ']' |
f05e27e5 |
1034 | { $$ = newANONLIST($2); |
1035 | TOKEN_GETMAD($1,$$,'['); |
1036 | TOKEN_GETMAD($3,$$,']'); |
1037 | } |
891be019 |
1038 | | '[' ']' |
bcabcc50 |
1039 | { $$ = newANONLIST((OP*)NULL); |
f05e27e5 |
1040 | TOKEN_GETMAD($1,$$,'['); |
1041 | TOKEN_GETMAD($2,$$,']'); |
1042 | } |
891be019 |
1043 | | HASHBRACK expr ';' '}' %prec '(' /* { foo => "Bar" } */ |
f05e27e5 |
1044 | { $$ = newANONHASH($2); |
1045 | TOKEN_GETMAD($1,$$,'{'); |
1046 | TOKEN_GETMAD($3,$$,';'); |
1047 | TOKEN_GETMAD($4,$$,'}'); |
1048 | } |
891be019 |
1049 | | HASHBRACK ';' '}' %prec '(' /* { } (';' by tokener) */ |
bcabcc50 |
1050 | { $$ = newANONHASH((OP*)NULL); |
f05e27e5 |
1051 | TOKEN_GETMAD($1,$$,'{'); |
1052 | TOKEN_GETMAD($2,$$,';'); |
1053 | TOKEN_GETMAD($3,$$,'}'); |
1054 | } |
718a7425 |
1055 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
5a5094bd |
1056 | { SvREFCNT_inc_simple_void(PL_compcv); |
718a7425 |
1057 | $$ = newANONATTRSUB($2, $3, $4, $5); |
f05e27e5 |
1058 | TOKEN_GETMAD($1,$$,'o'); |
718a7425 |
1059 | OP_GETMAD($3,$$,'s'); |
1060 | OP_GETMAD($4,$$,'a'); |
f05e27e5 |
1061 | } |
891be019 |
1062 | |
1063 | ; |
1064 | |
1065 | /* Things called with "do" */ |
1066 | termdo : DO term %prec UNIOP /* do $filename */ |
123d08c9 |
1067 | { $$ = dofile($2, IVAL($1)); |
f05e27e5 |
1068 | TOKEN_GETMAD($1,$$,'o'); |
1069 | } |
891be019 |
1070 | | DO block %prec '(' /* do { code */ |
f05e27e5 |
1071 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); |
1072 | TOKEN_GETMAD($1,$$,'D'); |
1073 | } |
891be019 |
1074 | | DO WORD '(' ')' /* do somesub() */ |
1075 | { $$ = newUNOP(OP_ENTERSUB, |
1076 | OPf_SPECIAL|OPf_STACKED, |
1077 | prepend_elem(OP_LIST, |
1078 | scalar(newCVREF( |
1079 | (OPpENTERSUB_AMPER<<8), |
1080 | scalar($2) |
bcabcc50 |
1081 | )),(OP*)NULL)); dep(); |
f05e27e5 |
1082 | TOKEN_GETMAD($1,$$,'o'); |
1083 | TOKEN_GETMAD($3,$$,'('); |
1084 | TOKEN_GETMAD($4,$$,')'); |
1085 | } |
891be019 |
1086 | | DO WORD '(' expr ')' /* do somesub(@args) */ |
1087 | { $$ = newUNOP(OP_ENTERSUB, |
1088 | OPf_SPECIAL|OPf_STACKED, |
1089 | append_elem(OP_LIST, |
1090 | $4, |
1091 | scalar(newCVREF( |
1092 | (OPpENTERSUB_AMPER<<8), |
1093 | scalar($2) |
f05e27e5 |
1094 | )))); dep(); |
1095 | TOKEN_GETMAD($1,$$,'o'); |
1096 | TOKEN_GETMAD($3,$$,'('); |
1097 | TOKEN_GETMAD($5,$$,')'); |
1098 | } |
891be019 |
1099 | | DO scalar '(' ')' /* do $subref () */ |
1100 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
1101 | prepend_elem(OP_LIST, |
bcabcc50 |
1102 | scalar(newCVREF(0,scalar($2))), (OP*)NULL)); dep(); |
f05e27e5 |
1103 | TOKEN_GETMAD($1,$$,'o'); |
1104 | TOKEN_GETMAD($3,$$,'('); |
1105 | TOKEN_GETMAD($4,$$,')'); |
1106 | } |
891be019 |
1107 | | DO scalar '(' expr ')' /* do $subref (@args) */ |
1108 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
1109 | prepend_elem(OP_LIST, |
1110 | $4, |
f05e27e5 |
1111 | scalar(newCVREF(0,scalar($2))))); dep(); |
1112 | TOKEN_GETMAD($1,$$,'o'); |
1113 | TOKEN_GETMAD($3,$$,'('); |
1114 | TOKEN_GETMAD($5,$$,')'); |
1115 | } |
891be019 |
1116 | |
1117 | ; |
1118 | |
1119 | term : termbinop |
1120 | | termunop |
1121 | | anonymous |
1122 | | termdo |
e9bdcc27 |
1123 | | term '?' term ':' term |
f05e27e5 |
1124 | { $$ = newCONDOP(0, $1, $3, $5); |
1125 | TOKEN_GETMAD($2,$$,'?'); |
1126 | TOKEN_GETMAD($4,$$,':'); |
1127 | } |
891be019 |
1128 | | REFGEN term /* \$x, \@y, \%z */ |
f05e27e5 |
1129 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); |
1130 | TOKEN_GETMAD($1,$$,'o'); |
1131 | } |
09bef843 |
1132 | | myattrterm %prec UNIOP |
1133 | { $$ = $1; } |
1134 | | LOCAL term %prec UNIOP |
f05e27e5 |
1135 | { $$ = localize($2,IVAL($1)); |
dde83331 |
1136 | TOKEN_GETMAD($1,$$,'k'); |
f05e27e5 |
1137 | } |
a0d0e21e |
1138 | | '(' expr ')' |
f05e27e5 |
1139 | { $$ = sawparens(IF_MAD(newUNOP(OP_NULL,0,$2), $2)); |
1140 | TOKEN_GETMAD($1,$$,'('); |
1141 | TOKEN_GETMAD($3,$$,')'); |
1142 | } |
8d063cd8 |
1143 | | '(' ')' |
f05e27e5 |
1144 | { $$ = sawparens(newNULLLIST()); |
1145 | TOKEN_GETMAD($1,$$,'('); |
1146 | TOKEN_GETMAD($2,$$,')'); |
1147 | } |
79072805 |
1148 | | scalar %prec '(' |
8d063cd8 |
1149 | { $$ = $1; } |
79072805 |
1150 | | star %prec '(' |
8d063cd8 |
1151 | { $$ = $1; } |
79072805 |
1152 | | hsh %prec '(' |
8d063cd8 |
1153 | { $$ = $1; } |
79072805 |
1154 | | ary %prec '(' |
8d063cd8 |
1155 | { $$ = $1; } |
891be019 |
1156 | | arylen %prec '(' /* $#x, $#{ something } */ |
79072805 |
1157 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 |
1158 | | subscripted |
1159 | { $$ = $1; } |
891be019 |
1160 | | ary '[' expr ']' /* array slice */ |
79072805 |
1161 | { $$ = prepend_elem(OP_ASLICE, |
1162 | newOP(OP_PUSHMARK, 0), |
79072805 |
1163 | newLISTOP(OP_ASLICE, 0, |
1164 | list($3), |
f05e27e5 |
1165 | ref($1, OP_ASLICE))); |
1166 | TOKEN_GETMAD($2,$$,'['); |
1167 | TOKEN_GETMAD($4,$$,']'); |
1168 | } |
891be019 |
1169 | | ary '{' expr ';' '}' /* @hash{@keys} */ |
79072805 |
1170 | { $$ = prepend_elem(OP_HSLICE, |
1171 | newOP(OP_PUSHMARK, 0), |
79072805 |
1172 | newLISTOP(OP_HSLICE, 0, |
1173 | list($3), |
a0d0e21e |
1174 | ref(oopsHV($1), OP_HSLICE))); |
53a7735b |
1175 | PL_parser->expect = XOPERATOR; |
f05e27e5 |
1176 | TOKEN_GETMAD($2,$$,'{'); |
1177 | TOKEN_GETMAD($4,$$,';'); |
1178 | TOKEN_GETMAD($5,$$,'}'); |
1179 | } |
79072805 |
1180 | | THING %prec '(' |
1181 | { $$ = $1; } |
891be019 |
1182 | | amper /* &foo; */ |
c07a80fd |
1183 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
ecb2f335 |
1184 | | amper '(' ')' /* &foo() */ |
f05e27e5 |
1185 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); |
1186 | TOKEN_GETMAD($2,$$,'('); |
1187 | TOKEN_GETMAD($3,$$,')'); |
1188 | } |
891be019 |
1189 | | amper '(' expr ')' /* &foo(@args) */ |
f05e27e5 |
1190 | { |
1191 | $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
1192 | append_elem(OP_LIST, $3, scalar($1))); |
035e2bcc |
1193 | DO_MAD({ |
f05e27e5 |
1194 | OP* op = $$; |
1195 | if (op->op_type == OP_CONST) { /* defeat const fold */ |
1196 | op = (OP*)op->op_madprop->mad_val; |
1197 | } |
1198 | token_getmad($2,op,'('); |
1199 | token_getmad($4,op,')'); |
035e2bcc |
1200 | }) |
f05e27e5 |
1201 | } |
891be019 |
1202 | | NOAMP WORD listexpr /* foo(@args) */ |
a0d0e21e |
1203 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
f05e27e5 |
1204 | append_elem(OP_LIST, $3, scalar($2))); |
1205 | TOKEN_GETMAD($1,$$,'o'); |
1206 | } |
891be019 |
1207 | | LOOPEX /* loop exiting command (goto, last, dump, etc) */ |
f05e27e5 |
1208 | { $$ = newOP(IVAL($1), OPf_SPECIAL); |
1209 | PL_hints |= HINT_BLOCK_SCOPE; |
1210 | TOKEN_GETMAD($1,$$,'o'); |
1211 | } |
a0d0e21e |
1212 | | LOOPEX term |
f05e27e5 |
1213 | { $$ = newLOOPEX(IVAL($1),$2); |
1214 | TOKEN_GETMAD($1,$$,'o'); |
1215 | } |
891be019 |
1216 | | NOTOP argexpr /* not $foo */ |
f05e27e5 |
1217 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); |
1218 | TOKEN_GETMAD($1,$$,'o'); |
1219 | } |
891be019 |
1220 | | UNIOP /* Unary op, $_ implied */ |
f05e27e5 |
1221 | { $$ = newOP(IVAL($1), 0); |
1222 | TOKEN_GETMAD($1,$$,'o'); |
1223 | } |
1224 | | UNIOP block /* eval { foo }* */ |
1225 | { $$ = newUNOP(IVAL($1), 0, $2); |
1226 | TOKEN_GETMAD($1,$$,'o'); |
1227 | } |
891be019 |
1228 | | UNIOP term /* Unary op */ |
f05e27e5 |
1229 | { $$ = newUNOP(IVAL($1), 0, $2); |
1230 | TOKEN_GETMAD($1,$$,'o'); |
1231 | } |
d2fdf8fd |
1232 | | REQUIRE /* require, $_ implied */ |
1233 | { $$ = newOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0); |
1234 | TOKEN_GETMAD($1,$$,'o'); |
1235 | } |
1236 | | REQUIRE term /* require Foo */ |
1237 | { $$ = newUNOP(OP_REQUIRE, $1 ? OPf_SPECIAL : 0, $2); |
1238 | TOKEN_GETMAD($1,$$,'o'); |
1239 | } |
3cd0a11a |
1240 | | UNIOPSUB |
1241 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
891be019 |
1242 | | UNIOPSUB term /* Sub treated as unop */ |
4633a7c4 |
1243 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
1244 | append_elem(OP_LIST, $2, scalar($1))); } |
891be019 |
1245 | | FUNC0 /* Nullary operator */ |
f05e27e5 |
1246 | { $$ = newOP(IVAL($1), 0); |
1247 | TOKEN_GETMAD($1,$$,'o'); |
1248 | } |
ae986130 |
1249 | | FUNC0 '(' ')' |
f05e27e5 |
1250 | { $$ = newOP(IVAL($1), 0); |
1251 | TOKEN_GETMAD($1,$$,'o'); |
1252 | TOKEN_GETMAD($2,$$,'('); |
1253 | TOKEN_GETMAD($3,$$,')'); |
1254 | } |
891be019 |
1255 | | FUNC0SUB /* Sub treated as nullop */ |
28757baa |
1256 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 |
1257 | scalar($1)); } |
891be019 |
1258 | | FUNC1 '(' ')' /* not () */ |
f05e27e5 |
1259 | { $$ = (IVAL($1) == OP_NOT) |
1260 | ? newUNOP(IVAL($1), 0, newSVOP(OP_CONST, 0, newSViv(0))) |
1261 | : newOP(IVAL($1), OPf_SPECIAL); |
1262 | |
1263 | TOKEN_GETMAD($1,$$,'o'); |
1264 | TOKEN_GETMAD($2,$$,'('); |
1265 | TOKEN_GETMAD($3,$$,')'); |
1266 | } |
891be019 |
1267 | | FUNC1 '(' expr ')' /* not($foo) */ |
f05e27e5 |
1268 | { $$ = newUNOP(IVAL($1), 0, $3); |
1269 | TOKEN_GETMAD($1,$$,'o'); |
1270 | TOKEN_GETMAD($2,$$,'('); |
1271 | TOKEN_GETMAD($4,$$,')'); |
1272 | } |
1273 | | PMFUNC '(' argexpr ')' /* m//, s///, tr/// */ |
1274 | { $$ = pmruntime($1, $3, 1); |
1275 | TOKEN_GETMAD($2,$$,'('); |
1276 | TOKEN_GETMAD($4,$$,')'); |
1277 | } |
79072805 |
1278 | | WORD |
378cc40b |
1279 | | listop |
be25f609 |
1280 | | YADAYADA |
1281 | { |
1282 | $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0), |
1283 | newSVOP(OP_CONST, 0, newSVpvs("Unimplemented"))); |
950f2ea2 |
1284 | TOKEN_GETMAD($1,$$,'X'); |
be25f609 |
1285 | } |
88e1f1a2 |
1286 | | PLUGEXPR |
8d063cd8 |
1287 | ; |
1288 | |
891be019 |
1289 | /* "my" declarations, with optional attributes */ |
09bef843 |
1290 | myattrterm: MY myterm myattrlist |
f05e27e5 |
1291 | { $$ = my_attrs($2,$3); |
1292 | DO_MAD( |
1293 | token_getmad($1,$$,'d'); |
1294 | append_madprops($3->op_madprop, $$, 'a'); |
1295 | $3->op_madprop = 0; |
1296 | ) |
1297 | } |
09bef843 |
1298 | | MY myterm |
f05e27e5 |
1299 | { $$ = localize($2,IVAL($1)); |
1300 | TOKEN_GETMAD($1,$$,'d'); |
1301 | } |
09bef843 |
1302 | ; |
1303 | |
891be019 |
1304 | /* Things that can be "my"'d */ |
09bef843 |
1305 | myterm : '(' expr ')' |
f05e27e5 |
1306 | { $$ = sawparens($2); |
1307 | TOKEN_GETMAD($1,$$,'('); |
1308 | TOKEN_GETMAD($3,$$,')'); |
1309 | } |
09bef843 |
1310 | | '(' ')' |
f05e27e5 |
1311 | { $$ = sawparens(newNULLLIST()); |
1312 | TOKEN_GETMAD($1,$$,'('); |
1313 | TOKEN_GETMAD($2,$$,')'); |
1314 | } |
09bef843 |
1315 | | scalar %prec '(' |
1316 | { $$ = $1; } |
1317 | | hsh %prec '(' |
1318 | { $$ = $1; } |
1319 | | ary %prec '(' |
1320 | { $$ = $1; } |
1321 | ; |
1322 | |
891be019 |
1323 | /* Basic list expressions */ |
fad39ff1 |
1324 | listexpr: /* NULL */ %prec PREC_LOW |
bcabcc50 |
1325 | { $$ = (OP*)NULL; } |
fad39ff1 |
1326 | | argexpr %prec PREC_LOW |
a0d0e21e |
1327 | { $$ = $1; } |
1328 | ; |
1329 | |
1330 | listexprcom: /* NULL */ |
bcabcc50 |
1331 | { $$ = (OP*)NULL; } |
79072805 |
1332 | | expr |
1333 | { $$ = $1; } |
a0d0e21e |
1334 | | expr ',' |
f05e27e5 |
1335 | { |
1336 | #ifdef MAD |
1337 | OP* op = newNULLLIST(); |
1338 | token_getmad($2,op,','); |
1339 | $$ = append_elem(OP_LIST, $1, op); |
1340 | #else |
1341 | $$ = $1; |
1342 | #endif |
1343 | |
1344 | } |
79072805 |
1345 | ; |
1346 | |
891be019 |
1347 | /* A little bit of trickery to make "for my $foo (@bar)" actually be |
1348 | lexical */ |
55497cff |
1349 | my_scalar: scalar |
12bd6ede |
1350 | { PL_parser->in_my = 0; $$ = my($1); } |
55497cff |
1351 | ; |
1352 | |
79072805 |
1353 | amper : '&' indirob |
f05e27e5 |
1354 | { $$ = newCVREF(IVAL($1),$2); |
1355 | TOKEN_GETMAD($1,$$,'&'); |
1356 | } |
a687059c |
1357 | ; |
1358 | |
79072805 |
1359 | scalar : '$' indirob |
f05e27e5 |
1360 | { $$ = newSVREF($2); |
1361 | TOKEN_GETMAD($1,$$,'$'); |
1362 | } |
a687059c |
1363 | ; |
1364 | |
79072805 |
1365 | ary : '@' indirob |
f05e27e5 |
1366 | { $$ = newAVREF($2); |
1367 | TOKEN_GETMAD($1,$$,'@'); |
1368 | } |
79072805 |
1369 | ; |
1370 | |
1371 | hsh : '%' indirob |
f05e27e5 |
1372 | { $$ = newHVREF($2); |
1373 | TOKEN_GETMAD($1,$$,'%'); |
1374 | } |
79072805 |
1375 | ; |
1376 | |
1377 | arylen : DOLSHARP indirob |
f05e27e5 |
1378 | { $$ = newAVREF($2); |
1379 | TOKEN_GETMAD($1,$$,'l'); |
1380 | } |
79072805 |
1381 | ; |
1382 | |
1383 | star : '*' indirob |
f05e27e5 |
1384 | { $$ = newGVREF(0,$2); |
1385 | TOKEN_GETMAD($1,$$,'*'); |
1386 | } |
79072805 |
1387 | ; |
1388 | |
891be019 |
1389 | /* Indirect objects */ |
79072805 |
1390 | indirob : WORD |
1391 | { $$ = scalar($1); } |
fad39ff1 |
1392 | | scalar %prec PREC_LOW |
f05e27e5 |
1393 | { $$ = scalar($1); } |
79072805 |
1394 | | block |
a0d0e21e |
1395 | { $$ = scope($1); } |
79072805 |
1396 | |
93a17b20 |
1397 | | PRIVATEREF |
1398 | { $$ = $1; } |
8d063cd8 |
1399 | ; |