Commit | Line | Data |
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3d6b6a90 | 1 | /* YACC parser for C expressions, for GDB. |
07422705 | 2 | Copyright (C) 1986, 1989, 1990, 1991, 1993, 1994, 1996, 1997 |
ba47c66a | 3 | Free Software Foundation, Inc. |
3d6b6a90 JG |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
6c9638b4 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
3d6b6a90 JG |
20 | |
21 | /* Parse a C expression from text in a string, | |
22 | and return the result as a struct expression pointer. | |
23 | That structure contains arithmetic operations in reverse polish, | |
24 | with constants represented by operations that are followed by special data. | |
25 | See expression.h for the details of the format. | |
26 | What is important here is that it can be built up sequentially | |
27 | during the process of parsing; the lower levels of the tree always | |
e35843d4 FF |
28 | come first in the result. |
29 | ||
30 | Note that malloc's and realloc's in this file are transformed to | |
31 | xmalloc and xrealloc respectively by the same sed command in the | |
32 | makefile that remaps any other malloc/realloc inserted by the parser | |
33 | generator. Doing this with #defines and trying to control the interaction | |
34 | with include files (<malloc.h> and <stdlib.h> for example) just became | |
35 | too messy, particularly when such includes can be inserted at random | |
36 | times by the parser generator. */ | |
3d6b6a90 JG |
37 | |
38 | %{ | |
39 | ||
3d6b6a90 | 40 | #include "defs.h" |
72ae15f6 FF |
41 | #include "gdb_string.h" |
42 | #include <ctype.h> | |
3d6b6a90 | 43 | #include "expression.h" |
3d6b6a90 | 44 | #include "value.h" |
abe28b92 | 45 | #include "parser-defs.h" |
3d6b6a90 | 46 | #include "language.h" |
22e39759 | 47 | #include "c-lang.h" |
100f92e2 JK |
48 | #include "bfd.h" /* Required by objfiles.h. */ |
49 | #include "symfile.h" /* Required by objfiles.h. */ | |
50 | #include "objfiles.h" /* For have_full_symbols and have_partial_symbols */ | |
3d6b6a90 | 51 | |
19d0f3f4 FF |
52 | /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc), |
53 | as well as gratuitiously global symbol names, so we can have multiple | |
54 | yacc generated parsers in gdb. Note that these are only the variables | |
55 | produced by yacc. If other parser generators (bison, byacc, etc) produce | |
56 | additional global names that conflict at link time, then those parser | |
57 | generators need to be fixed instead of adding those names to this list. */ | |
58 | ||
d018c8a6 | 59 | #define yymaxdepth c_maxdepth |
3d6b6a90 JG |
60 | #define yyparse c_parse |
61 | #define yylex c_lex | |
62 | #define yyerror c_error | |
63 | #define yylval c_lval | |
64 | #define yychar c_char | |
65 | #define yydebug c_debug | |
66 | #define yypact c_pact | |
67 | #define yyr1 c_r1 | |
68 | #define yyr2 c_r2 | |
69 | #define yydef c_def | |
70 | #define yychk c_chk | |
71 | #define yypgo c_pgo | |
72 | #define yyact c_act | |
73 | #define yyexca c_exca | |
9ce7cb7c SG |
74 | #define yyerrflag c_errflag |
75 | #define yynerrs c_nerrs | |
39bf5952 JG |
76 | #define yyps c_ps |
77 | #define yypv c_pv | |
78 | #define yys c_s | |
d018c8a6 | 79 | #define yy_yys c_yys |
39bf5952 JG |
80 | #define yystate c_state |
81 | #define yytmp c_tmp | |
82 | #define yyv c_v | |
d018c8a6 | 83 | #define yy_yyv c_yyv |
39bf5952 JG |
84 | #define yyval c_val |
85 | #define yylloc c_lloc | |
45fe3db4 FF |
86 | #define yyreds c_reds /* With YYDEBUG defined */ |
87 | #define yytoks c_toks /* With YYDEBUG defined */ | |
ea082c0a MM |
88 | #define yylhs c_yylhs |
89 | #define yylen c_yylen | |
90 | #define yydefred c_yydefred | |
91 | #define yydgoto c_yydgoto | |
92 | #define yysindex c_yysindex | |
93 | #define yyrindex c_yyrindex | |
94 | #define yygindex c_yygindex | |
95 | #define yytable c_yytable | |
96 | #define yycheck c_yycheck | |
19d0f3f4 FF |
97 | |
98 | #ifndef YYDEBUG | |
99 | #define YYDEBUG 0 /* Default to no yydebug support */ | |
100 | #endif | |
3d6b6a90 | 101 | |
d26b50b7 | 102 | int |
1ab3bf1b JG |
103 | yyparse PARAMS ((void)); |
104 | ||
19d0f3f4 | 105 | static int |
1ab3bf1b JG |
106 | yylex PARAMS ((void)); |
107 | ||
108 | void | |
109 | yyerror PARAMS ((char *)); | |
3d6b6a90 JG |
110 | |
111 | %} | |
112 | ||
113 | /* Although the yacc "value" of an expression is not used, | |
114 | since the result is stored in the structure being created, | |
115 | other node types do have values. */ | |
116 | ||
117 | %union | |
118 | { | |
119 | LONGEST lval; | |
2e6edad1 SC |
120 | struct { |
121 | LONGEST val; | |
122 | struct type *type; | |
aa220473 SG |
123 | } typed_val_int; |
124 | struct { | |
125 | DOUBLEST dval; | |
126 | struct type *type; | |
127 | } typed_val_float; | |
3d6b6a90 JG |
128 | struct symbol *sym; |
129 | struct type *tval; | |
130 | struct stoken sval; | |
131 | struct ttype tsym; | |
132 | struct symtoken ssym; | |
133 | int voidval; | |
134 | struct block *bval; | |
135 | enum exp_opcode opcode; | |
136 | struct internalvar *ivar; | |
137 | ||
138 | struct type **tvec; | |
139 | int *ivec; | |
140 | } | |
141 | ||
1ab3bf1b JG |
142 | %{ |
143 | /* YYSTYPE gets defined by %union */ | |
144 | static int | |
145 | parse_number PARAMS ((char *, int, int, YYSTYPE *)); | |
146 | %} | |
147 | ||
9da75ad3 FF |
148 | %type <voidval> exp exp1 type_exp start variable qualified_name lcurly |
149 | %type <lval> rcurly | |
2640f7e1 | 150 | %type <tval> type typebase |
3d6b6a90 JG |
151 | %type <tvec> nonempty_typelist |
152 | /* %type <bval> block */ | |
153 | ||
154 | /* Fancy type parsing. */ | |
155 | %type <voidval> func_mod direct_abs_decl abs_decl | |
156 | %type <tval> ptype | |
157 | %type <lval> array_mod | |
158 | ||
aa220473 SG |
159 | %token <typed_val_int> INT |
160 | %token <typed_val_float> FLOAT | |
3d6b6a90 JG |
161 | |
162 | /* Both NAME and TYPENAME tokens represent symbols in the input, | |
163 | and both convey their data as strings. | |
164 | But a TYPENAME is a string that happens to be defined as a typedef | |
165 | or builtin type name (such as int or char) | |
166 | and a NAME is any other symbol. | |
167 | Contexts where this distinction is not important can use the | |
168 | nonterminal "name", which matches either NAME or TYPENAME. */ | |
169 | ||
170 | %token <sval> STRING | |
171 | %token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence. */ | |
172 | %token <tsym> TYPENAME | |
173 | %type <sval> name | |
174 | %type <ssym> name_not_typename | |
175 | %type <tsym> typename | |
176 | ||
177 | /* A NAME_OR_INT is a symbol which is not known in the symbol table, | |
178 | but which would parse as a valid number in the current input radix. | |
179 | E.g. "c" when input_radix==16. Depending on the parse, it will be | |
2e6edad1 | 180 | turned into a name or into a number. */ |
3d6b6a90 | 181 | |
2e6edad1 | 182 | %token <ssym> NAME_OR_INT |
3d6b6a90 | 183 | |
8050a57b | 184 | %token STRUCT CLASS UNION ENUM SIZEOF UNSIGNED COLONCOLON |
4c53d9ca | 185 | %token TEMPLATE |
3d6b6a90 JG |
186 | %token ERROR |
187 | ||
188 | /* Special type cases, put in to allow the parser to distinguish different | |
189 | legal basetypes. */ | |
aa220473 | 190 | %token SIGNED_KEYWORD LONG SHORT INT_KEYWORD CONST_KEYWORD VOLATILE_KEYWORD DOUBLE_KEYWORD |
3d6b6a90 | 191 | |
c700638c | 192 | %token <voidval> VARIABLE |
3d6b6a90 JG |
193 | |
194 | %token <opcode> ASSIGN_MODIFY | |
195 | ||
196 | /* C++ */ | |
197 | %token THIS | |
198 | ||
199 | %left ',' | |
200 | %left ABOVE_COMMA | |
201 | %right '=' ASSIGN_MODIFY | |
202 | %right '?' | |
088c3a0b JG |
203 | %left OROR |
204 | %left ANDAND | |
3d6b6a90 JG |
205 | %left '|' |
206 | %left '^' | |
207 | %left '&' | |
208 | %left EQUAL NOTEQUAL | |
209 | %left '<' '>' LEQ GEQ | |
210 | %left LSH RSH | |
211 | %left '@' | |
212 | %left '+' '-' | |
213 | %left '*' '/' '%' | |
214 | %right UNARY INCREMENT DECREMENT | |
215 | %right ARROW '.' '[' '(' | |
216 | %token <ssym> BLOCKNAME | |
217 | %type <bval> block | |
218 | %left COLONCOLON | |
36ce1b64 | 219 | |
368c8614 MT |
220 | \f |
221 | %% | |
222 | ||
3d6b6a90 JG |
223 | start : exp1 |
224 | | type_exp | |
225 | ; | |
226 | ||
227 | type_exp: type | |
228 | { write_exp_elt_opcode(OP_TYPE); | |
229 | write_exp_elt_type($1); | |
230 | write_exp_elt_opcode(OP_TYPE);} | |
231 | ; | |
232 | ||
233 | /* Expressions, including the comma operator. */ | |
234 | exp1 : exp | |
235 | | exp1 ',' exp | |
236 | { write_exp_elt_opcode (BINOP_COMMA); } | |
237 | ; | |
238 | ||
239 | /* Expressions, not including the comma operator. */ | |
240 | exp : '*' exp %prec UNARY | |
241 | { write_exp_elt_opcode (UNOP_IND); } | |
242 | ||
243 | exp : '&' exp %prec UNARY | |
244 | { write_exp_elt_opcode (UNOP_ADDR); } | |
245 | ||
246 | exp : '-' exp %prec UNARY | |
247 | { write_exp_elt_opcode (UNOP_NEG); } | |
248 | ; | |
249 | ||
250 | exp : '!' exp %prec UNARY | |
e58de8a2 | 251 | { write_exp_elt_opcode (UNOP_LOGICAL_NOT); } |
3d6b6a90 JG |
252 | ; |
253 | ||
254 | exp : '~' exp %prec UNARY | |
e58de8a2 | 255 | { write_exp_elt_opcode (UNOP_COMPLEMENT); } |
3d6b6a90 JG |
256 | ; |
257 | ||
258 | exp : INCREMENT exp %prec UNARY | |
259 | { write_exp_elt_opcode (UNOP_PREINCREMENT); } | |
260 | ; | |
261 | ||
262 | exp : DECREMENT exp %prec UNARY | |
263 | { write_exp_elt_opcode (UNOP_PREDECREMENT); } | |
264 | ; | |
265 | ||
266 | exp : exp INCREMENT %prec UNARY | |
267 | { write_exp_elt_opcode (UNOP_POSTINCREMENT); } | |
268 | ; | |
269 | ||
270 | exp : exp DECREMENT %prec UNARY | |
271 | { write_exp_elt_opcode (UNOP_POSTDECREMENT); } | |
272 | ; | |
273 | ||
274 | exp : SIZEOF exp %prec UNARY | |
275 | { write_exp_elt_opcode (UNOP_SIZEOF); } | |
276 | ; | |
277 | ||
278 | exp : exp ARROW name | |
279 | { write_exp_elt_opcode (STRUCTOP_PTR); | |
280 | write_exp_string ($3); | |
281 | write_exp_elt_opcode (STRUCTOP_PTR); } | |
282 | ; | |
283 | ||
2640f7e1 JG |
284 | exp : exp ARROW qualified_name |
285 | { /* exp->type::name becomes exp->*(&type::name) */ | |
286 | /* Note: this doesn't work if name is a | |
287 | static member! FIXME */ | |
288 | write_exp_elt_opcode (UNOP_ADDR); | |
289 | write_exp_elt_opcode (STRUCTOP_MPTR); } | |
01be6913 | 290 | ; |
3d6b6a90 JG |
291 | exp : exp ARROW '*' exp |
292 | { write_exp_elt_opcode (STRUCTOP_MPTR); } | |
293 | ; | |
294 | ||
295 | exp : exp '.' name | |
296 | { write_exp_elt_opcode (STRUCTOP_STRUCT); | |
297 | write_exp_string ($3); | |
298 | write_exp_elt_opcode (STRUCTOP_STRUCT); } | |
299 | ; | |
300 | ||
cd10c7e3 SG |
301 | /* start-sanitize-gm |
302 | Need to find a better way to do this... | |
303 | exp : exp '@' name | |
304 | { write_exp_elt_opcode (STRUCTOP_FIELD); | |
305 | write_exp_string ($3); | |
306 | write_exp_elt_opcode (STRUCTOP_FIELD); | |
307 | } | |
308 | end-sanitize-gm */ | |
309 | ||
2640f7e1 JG |
310 | exp : exp '.' qualified_name |
311 | { /* exp.type::name becomes exp.*(&type::name) */ | |
312 | /* Note: this doesn't work if name is a | |
313 | static member! FIXME */ | |
314 | write_exp_elt_opcode (UNOP_ADDR); | |
315 | write_exp_elt_opcode (STRUCTOP_MEMBER); } | |
01be6913 PB |
316 | ; |
317 | ||
3d6b6a90 JG |
318 | exp : exp '.' '*' exp |
319 | { write_exp_elt_opcode (STRUCTOP_MEMBER); } | |
320 | ; | |
321 | ||
322 | exp : exp '[' exp1 ']' | |
323 | { write_exp_elt_opcode (BINOP_SUBSCRIPT); } | |
324 | ; | |
325 | ||
326 | exp : exp '(' | |
327 | /* This is to save the value of arglist_len | |
328 | being accumulated by an outer function call. */ | |
329 | { start_arglist (); } | |
330 | arglist ')' %prec ARROW | |
331 | { write_exp_elt_opcode (OP_FUNCALL); | |
332 | write_exp_elt_longcst ((LONGEST) end_arglist ()); | |
333 | write_exp_elt_opcode (OP_FUNCALL); } | |
334 | ; | |
335 | ||
9da75ad3 FF |
336 | lcurly : '{' |
337 | { start_arglist (); } | |
338 | ; | |
339 | ||
3d6b6a90 JG |
340 | arglist : |
341 | ; | |
342 | ||
343 | arglist : exp | |
344 | { arglist_len = 1; } | |
345 | ; | |
346 | ||
347 | arglist : arglist ',' exp %prec ABOVE_COMMA | |
348 | { arglist_len++; } | |
349 | ; | |
350 | ||
9da75ad3 FF |
351 | rcurly : '}' |
352 | { $$ = end_arglist () - 1; } | |
353 | ; | |
354 | exp : lcurly arglist rcurly %prec ARROW | |
ec16f701 FF |
355 | { write_exp_elt_opcode (OP_ARRAY); |
356 | write_exp_elt_longcst ((LONGEST) 0); | |
9da75ad3 | 357 | write_exp_elt_longcst ((LONGEST) $3); |
ec16f701 FF |
358 | write_exp_elt_opcode (OP_ARRAY); } |
359 | ; | |
360 | ||
9da75ad3 | 361 | exp : lcurly type rcurly exp %prec UNARY |
3d6b6a90 JG |
362 | { write_exp_elt_opcode (UNOP_MEMVAL); |
363 | write_exp_elt_type ($2); | |
364 | write_exp_elt_opcode (UNOP_MEMVAL); } | |
365 | ; | |
366 | ||
367 | exp : '(' type ')' exp %prec UNARY | |
368 | { write_exp_elt_opcode (UNOP_CAST); | |
369 | write_exp_elt_type ($2); | |
370 | write_exp_elt_opcode (UNOP_CAST); } | |
371 | ; | |
372 | ||
373 | exp : '(' exp1 ')' | |
374 | { } | |
375 | ; | |
376 | ||
377 | /* Binary operators in order of decreasing precedence. */ | |
378 | ||
379 | exp : exp '@' exp | |
380 | { write_exp_elt_opcode (BINOP_REPEAT); } | |
381 | ; | |
382 | ||
383 | exp : exp '*' exp | |
384 | { write_exp_elt_opcode (BINOP_MUL); } | |
385 | ; | |
386 | ||
387 | exp : exp '/' exp | |
388 | { write_exp_elt_opcode (BINOP_DIV); } | |
389 | ; | |
390 | ||
391 | exp : exp '%' exp | |
392 | { write_exp_elt_opcode (BINOP_REM); } | |
393 | ; | |
394 | ||
395 | exp : exp '+' exp | |
396 | { write_exp_elt_opcode (BINOP_ADD); } | |
397 | ; | |
398 | ||
399 | exp : exp '-' exp | |
400 | { write_exp_elt_opcode (BINOP_SUB); } | |
401 | ; | |
402 | ||
403 | exp : exp LSH exp | |
404 | { write_exp_elt_opcode (BINOP_LSH); } | |
405 | ; | |
406 | ||
407 | exp : exp RSH exp | |
408 | { write_exp_elt_opcode (BINOP_RSH); } | |
409 | ; | |
410 | ||
411 | exp : exp EQUAL exp | |
412 | { write_exp_elt_opcode (BINOP_EQUAL); } | |
413 | ; | |
414 | ||
415 | exp : exp NOTEQUAL exp | |
416 | { write_exp_elt_opcode (BINOP_NOTEQUAL); } | |
417 | ; | |
418 | ||
419 | exp : exp LEQ exp | |
420 | { write_exp_elt_opcode (BINOP_LEQ); } | |
421 | ; | |
422 | ||
423 | exp : exp GEQ exp | |
424 | { write_exp_elt_opcode (BINOP_GEQ); } | |
425 | ; | |
426 | ||
427 | exp : exp '<' exp | |
428 | { write_exp_elt_opcode (BINOP_LESS); } | |
429 | ; | |
430 | ||
431 | exp : exp '>' exp | |
432 | { write_exp_elt_opcode (BINOP_GTR); } | |
433 | ; | |
434 | ||
435 | exp : exp '&' exp | |
e58de8a2 | 436 | { write_exp_elt_opcode (BINOP_BITWISE_AND); } |
3d6b6a90 JG |
437 | ; |
438 | ||
439 | exp : exp '^' exp | |
e58de8a2 | 440 | { write_exp_elt_opcode (BINOP_BITWISE_XOR); } |
3d6b6a90 JG |
441 | ; |
442 | ||
443 | exp : exp '|' exp | |
e58de8a2 | 444 | { write_exp_elt_opcode (BINOP_BITWISE_IOR); } |
3d6b6a90 JG |
445 | ; |
446 | ||
088c3a0b | 447 | exp : exp ANDAND exp |
e58de8a2 | 448 | { write_exp_elt_opcode (BINOP_LOGICAL_AND); } |
3d6b6a90 JG |
449 | ; |
450 | ||
088c3a0b | 451 | exp : exp OROR exp |
e58de8a2 | 452 | { write_exp_elt_opcode (BINOP_LOGICAL_OR); } |
3d6b6a90 JG |
453 | ; |
454 | ||
455 | exp : exp '?' exp ':' exp %prec '?' | |
456 | { write_exp_elt_opcode (TERNOP_COND); } | |
457 | ; | |
458 | ||
459 | exp : exp '=' exp | |
460 | { write_exp_elt_opcode (BINOP_ASSIGN); } | |
461 | ; | |
462 | ||
463 | exp : exp ASSIGN_MODIFY exp | |
464 | { write_exp_elt_opcode (BINOP_ASSIGN_MODIFY); | |
465 | write_exp_elt_opcode ($2); | |
466 | write_exp_elt_opcode (BINOP_ASSIGN_MODIFY); } | |
467 | ; | |
468 | ||
469 | exp : INT | |
470 | { write_exp_elt_opcode (OP_LONG); | |
2e6edad1 SC |
471 | write_exp_elt_type ($1.type); |
472 | write_exp_elt_longcst ((LONGEST)($1.val)); | |
3d6b6a90 JG |
473 | write_exp_elt_opcode (OP_LONG); } |
474 | ; | |
475 | ||
476 | exp : NAME_OR_INT | |
477 | { YYSTYPE val; | |
478 | parse_number ($1.stoken.ptr, $1.stoken.length, 0, &val); | |
479 | write_exp_elt_opcode (OP_LONG); | |
aa220473 SG |
480 | write_exp_elt_type (val.typed_val_int.type); |
481 | write_exp_elt_longcst ((LONGEST)val.typed_val_int.val); | |
3d6b6a90 JG |
482 | write_exp_elt_opcode (OP_LONG); |
483 | } | |
484 | ; | |
485 | ||
3d6b6a90 JG |
486 | |
487 | exp : FLOAT | |
488 | { write_exp_elt_opcode (OP_DOUBLE); | |
aa220473 SG |
489 | write_exp_elt_type ($1.type); |
490 | write_exp_elt_dblcst ($1.dval); | |
3d6b6a90 JG |
491 | write_exp_elt_opcode (OP_DOUBLE); } |
492 | ; | |
493 | ||
494 | exp : variable | |
495 | ; | |
496 | ||
3d6b6a90 | 497 | exp : VARIABLE |
c700638c | 498 | /* Already written by write_dollar_variable. */ |
3d6b6a90 JG |
499 | ; |
500 | ||
501 | exp : SIZEOF '(' type ')' %prec UNARY | |
502 | { write_exp_elt_opcode (OP_LONG); | |
503 | write_exp_elt_type (builtin_type_int); | |
940d5967 | 504 | CHECK_TYPEDEF ($3); |
3d6b6a90 JG |
505 | write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3)); |
506 | write_exp_elt_opcode (OP_LONG); } | |
507 | ; | |
508 | ||
509 | exp : STRING | |
c4413e2c FF |
510 | { /* C strings are converted into array constants with |
511 | an explicit null byte added at the end. Thus | |
512 | the array upper bound is the string length. | |
513 | There is no such thing in C as a completely empty | |
514 | string. */ | |
515 | char *sp = $1.ptr; int count = $1.length; | |
516 | while (count-- > 0) | |
517 | { | |
518 | write_exp_elt_opcode (OP_LONG); | |
519 | write_exp_elt_type (builtin_type_char); | |
520 | write_exp_elt_longcst ((LONGEST)(*sp++)); | |
521 | write_exp_elt_opcode (OP_LONG); | |
522 | } | |
523 | write_exp_elt_opcode (OP_LONG); | |
524 | write_exp_elt_type (builtin_type_char); | |
525 | write_exp_elt_longcst ((LONGEST)'\0'); | |
526 | write_exp_elt_opcode (OP_LONG); | |
527 | write_exp_elt_opcode (OP_ARRAY); | |
528 | write_exp_elt_longcst ((LONGEST) 0); | |
529 | write_exp_elt_longcst ((LONGEST) ($1.length)); | |
530 | write_exp_elt_opcode (OP_ARRAY); } | |
3d6b6a90 JG |
531 | ; |
532 | ||
533 | /* C++. */ | |
534 | exp : THIS | |
535 | { write_exp_elt_opcode (OP_THIS); | |
536 | write_exp_elt_opcode (OP_THIS); } | |
537 | ; | |
538 | ||
539 | /* end of C++. */ | |
540 | ||
541 | block : BLOCKNAME | |
542 | { | |
543 | if ($1.sym != 0) | |
544 | $$ = SYMBOL_BLOCK_VALUE ($1.sym); | |
545 | else | |
546 | { | |
547 | struct symtab *tem = | |
548 | lookup_symtab (copy_name ($1.stoken)); | |
549 | if (tem) | |
13ffa6be | 550 | $$ = BLOCKVECTOR_BLOCK (BLOCKVECTOR (tem), STATIC_BLOCK); |
3d6b6a90 JG |
551 | else |
552 | error ("No file or function \"%s\".", | |
553 | copy_name ($1.stoken)); | |
554 | } | |
555 | } | |
556 | ; | |
557 | ||
558 | block : block COLONCOLON name | |
559 | { struct symbol *tem | |
560 | = lookup_symbol (copy_name ($3), $1, | |
bcca9a08 FF |
561 | VAR_NAMESPACE, (int *) NULL, |
562 | (struct symtab **) NULL); | |
3d6b6a90 JG |
563 | if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK) |
564 | error ("No function \"%s\" in specified context.", | |
565 | copy_name ($3)); | |
566 | $$ = SYMBOL_BLOCK_VALUE (tem); } | |
567 | ; | |
568 | ||
569 | variable: block COLONCOLON name | |
570 | { struct symbol *sym; | |
571 | sym = lookup_symbol (copy_name ($3), $1, | |
bcca9a08 FF |
572 | VAR_NAMESPACE, (int *) NULL, |
573 | (struct symtab **) NULL); | |
3d6b6a90 JG |
574 | if (sym == 0) |
575 | error ("No symbol \"%s\" in specified context.", | |
576 | copy_name ($3)); | |
577 | ||
578 | write_exp_elt_opcode (OP_VAR_VALUE); | |
479fdd26 JK |
579 | /* block_found is set by lookup_symbol. */ |
580 | write_exp_elt_block (block_found); | |
3d6b6a90 JG |
581 | write_exp_elt_sym (sym); |
582 | write_exp_elt_opcode (OP_VAR_VALUE); } | |
583 | ; | |
584 | ||
2640f7e1 | 585 | qualified_name: typebase COLONCOLON name |
3d6b6a90 JG |
586 | { |
587 | struct type *type = $1; | |
588 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT | |
589 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
590 | error ("`%s' is not defined as an aggregate type.", | |
591 | TYPE_NAME (type)); | |
592 | ||
593 | write_exp_elt_opcode (OP_SCOPE); | |
594 | write_exp_elt_type (type); | |
2640f7e1 | 595 | write_exp_string ($3); |
3d6b6a90 JG |
596 | write_exp_elt_opcode (OP_SCOPE); |
597 | } | |
2640f7e1 | 598 | | typebase COLONCOLON '~' name |
3d6b6a90 JG |
599 | { |
600 | struct type *type = $1; | |
01be6913 | 601 | struct stoken tmp_token; |
3d6b6a90 JG |
602 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
603 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
604 | error ("`%s' is not defined as an aggregate type.", | |
605 | TYPE_NAME (type)); | |
606 | ||
2640f7e1 JG |
607 | tmp_token.ptr = (char*) alloca ($4.length + 2); |
608 | tmp_token.length = $4.length + 1; | |
01be6913 | 609 | tmp_token.ptr[0] = '~'; |
2640f7e1 | 610 | memcpy (tmp_token.ptr+1, $4.ptr, $4.length); |
01be6913 | 611 | tmp_token.ptr[tmp_token.length] = 0; |
a46d92a7 PS |
612 | |
613 | /* Check for valid destructor name. */ | |
614 | destructor_name_p (tmp_token.ptr, type); | |
3d6b6a90 JG |
615 | write_exp_elt_opcode (OP_SCOPE); |
616 | write_exp_elt_type (type); | |
01be6913 | 617 | write_exp_string (tmp_token); |
3d6b6a90 | 618 | write_exp_elt_opcode (OP_SCOPE); |
3d6b6a90 | 619 | } |
01be6913 PB |
620 | ; |
621 | ||
622 | variable: qualified_name | |
3d6b6a90 JG |
623 | | COLONCOLON name |
624 | { | |
625 | char *name = copy_name ($2); | |
626 | struct symbol *sym; | |
1ab3bf1b | 627 | struct minimal_symbol *msymbol; |
3d6b6a90 JG |
628 | |
629 | sym = | |
bcca9a08 FF |
630 | lookup_symbol (name, (const struct block *) NULL, |
631 | VAR_NAMESPACE, (int *) NULL, | |
632 | (struct symtab **) NULL); | |
3d6b6a90 JG |
633 | if (sym) |
634 | { | |
635 | write_exp_elt_opcode (OP_VAR_VALUE); | |
479fdd26 | 636 | write_exp_elt_block (NULL); |
3d6b6a90 JG |
637 | write_exp_elt_sym (sym); |
638 | write_exp_elt_opcode (OP_VAR_VALUE); | |
639 | break; | |
640 | } | |
3d6b6a90 | 641 | |
2d336b1b | 642 | msymbol = lookup_minimal_symbol (name, NULL, NULL); |
1ab3bf1b | 643 | if (msymbol != NULL) |
3d6b6a90 | 644 | { |
abe28b92 JK |
645 | write_exp_msymbol (msymbol, |
646 | lookup_function_type (builtin_type_int), | |
647 | builtin_type_int); | |
3d6b6a90 JG |
648 | } |
649 | else | |
1ab3bf1b | 650 | if (!have_full_symbols () && !have_partial_symbols ()) |
3d6b6a90 JG |
651 | error ("No symbol table is loaded. Use the \"file\" command."); |
652 | else | |
653 | error ("No symbol \"%s\" in current context.", name); | |
654 | } | |
655 | ; | |
656 | ||
657 | variable: name_not_typename | |
658 | { struct symbol *sym = $1.sym; | |
659 | ||
660 | if (sym) | |
661 | { | |
443abae1 | 662 | if (symbol_read_needs_frame (sym)) |
3d6b6a90 | 663 | { |
3d6b6a90 JG |
664 | if (innermost_block == 0 || |
665 | contained_in (block_found, | |
666 | innermost_block)) | |
667 | innermost_block = block_found; | |
3d6b6a90 | 668 | } |
443abae1 | 669 | |
3d6b6a90 | 670 | write_exp_elt_opcode (OP_VAR_VALUE); |
479fdd26 JK |
671 | /* We want to use the selected frame, not |
672 | another more inner frame which happens to | |
673 | be in the same block. */ | |
674 | write_exp_elt_block (NULL); | |
3d6b6a90 JG |
675 | write_exp_elt_sym (sym); |
676 | write_exp_elt_opcode (OP_VAR_VALUE); | |
677 | } | |
678 | else if ($1.is_a_field_of_this) | |
679 | { | |
680 | /* C++: it hangs off of `this'. Must | |
681 | not inadvertently convert from a method call | |
682 | to data ref. */ | |
683 | if (innermost_block == 0 || | |
684 | contained_in (block_found, innermost_block)) | |
685 | innermost_block = block_found; | |
686 | write_exp_elt_opcode (OP_THIS); | |
687 | write_exp_elt_opcode (OP_THIS); | |
688 | write_exp_elt_opcode (STRUCTOP_PTR); | |
689 | write_exp_string ($1.stoken); | |
690 | write_exp_elt_opcode (STRUCTOP_PTR); | |
691 | } | |
692 | else | |
693 | { | |
1ab3bf1b | 694 | struct minimal_symbol *msymbol; |
3d6b6a90 JG |
695 | register char *arg = copy_name ($1.stoken); |
696 | ||
2d336b1b JK |
697 | msymbol = |
698 | lookup_minimal_symbol (arg, NULL, NULL); | |
1ab3bf1b | 699 | if (msymbol != NULL) |
3d6b6a90 | 700 | { |
abe28b92 JK |
701 | write_exp_msymbol (msymbol, |
702 | lookup_function_type (builtin_type_int), | |
703 | builtin_type_int); | |
3d6b6a90 | 704 | } |
1ab3bf1b | 705 | else if (!have_full_symbols () && !have_partial_symbols ()) |
3d6b6a90 JG |
706 | error ("No symbol table is loaded. Use the \"file\" command."); |
707 | else | |
708 | error ("No symbol \"%s\" in current context.", | |
709 | copy_name ($1.stoken)); | |
710 | } | |
711 | } | |
712 | ; | |
713 | ||
714 | ||
715 | ptype : typebase | |
f843c95f | 716 | /* "const" and "volatile" are curently ignored. A type qualifier |
adee89e8 JK |
717 | before the type is currently handled in the typebase rule. |
718 | The reason for recognizing these here (shift/reduce conflicts) | |
719 | might be obsolete now that some pointer to member rules have | |
720 | been deleted. */ | |
f843c95f JK |
721 | | typebase CONST_KEYWORD |
722 | | typebase VOLATILE_KEYWORD | |
3d6b6a90 | 723 | | typebase abs_decl |
f843c95f JK |
724 | { $$ = follow_types ($1); } |
725 | | typebase CONST_KEYWORD abs_decl | |
726 | { $$ = follow_types ($1); } | |
727 | | typebase VOLATILE_KEYWORD abs_decl | |
728 | { $$ = follow_types ($1); } | |
3d6b6a90 JG |
729 | ; |
730 | ||
731 | abs_decl: '*' | |
732 | { push_type (tp_pointer); $$ = 0; } | |
733 | | '*' abs_decl | |
734 | { push_type (tp_pointer); $$ = $2; } | |
735 | | '&' | |
736 | { push_type (tp_reference); $$ = 0; } | |
737 | | '&' abs_decl | |
738 | { push_type (tp_reference); $$ = $2; } | |
739 | | direct_abs_decl | |
740 | ; | |
741 | ||
742 | direct_abs_decl: '(' abs_decl ')' | |
743 | { $$ = $2; } | |
744 | | direct_abs_decl array_mod | |
745 | { | |
746 | push_type_int ($2); | |
747 | push_type (tp_array); | |
748 | } | |
749 | | array_mod | |
750 | { | |
751 | push_type_int ($1); | |
752 | push_type (tp_array); | |
753 | $$ = 0; | |
754 | } | |
f843c95f | 755 | |
3d6b6a90 JG |
756 | | direct_abs_decl func_mod |
757 | { push_type (tp_function); } | |
758 | | func_mod | |
759 | { push_type (tp_function); } | |
760 | ; | |
761 | ||
762 | array_mod: '[' ']' | |
763 | { $$ = -1; } | |
764 | | '[' INT ']' | |
2e6edad1 | 765 | { $$ = $2.val; } |
3d6b6a90 JG |
766 | ; |
767 | ||
768 | func_mod: '(' ')' | |
769 | { $$ = 0; } | |
0e2a896c | 770 | | '(' nonempty_typelist ')' |
be772100 | 771 | { free ((PTR)$2); $$ = 0; } |
3d6b6a90 JG |
772 | ; |
773 | ||
adee89e8 JK |
774 | /* We used to try to recognize more pointer to member types here, but |
775 | that didn't work (shift/reduce conflicts meant that these rules never | |
776 | got executed). The problem is that | |
777 | int (foo::bar::baz::bizzle) | |
778 | is a function type but | |
779 | int (foo::bar::baz::bizzle::*) | |
780 | is a pointer to member type. Stroustrup loses again! */ | |
781 | ||
3d6b6a90 | 782 | type : ptype |
2640f7e1 JG |
783 | | typebase COLONCOLON '*' |
784 | { $$ = lookup_member_type (builtin_type_int, $1); } | |
3d6b6a90 JG |
785 | ; |
786 | ||
10a297b7 | 787 | typebase /* Implements (approximately): (type-qualifier)* type-specifier */ |
3d6b6a90 JG |
788 | : TYPENAME |
789 | { $$ = $1.type; } | |
790 | | INT_KEYWORD | |
791 | { $$ = builtin_type_int; } | |
792 | | LONG | |
793 | { $$ = builtin_type_long; } | |
794 | | SHORT | |
795 | { $$ = builtin_type_short; } | |
796 | | LONG INT_KEYWORD | |
797 | { $$ = builtin_type_long; } | |
798 | | UNSIGNED LONG INT_KEYWORD | |
799 | { $$ = builtin_type_unsigned_long; } | |
800 | | LONG LONG | |
801 | { $$ = builtin_type_long_long; } | |
802 | | LONG LONG INT_KEYWORD | |
803 | { $$ = builtin_type_long_long; } | |
804 | | UNSIGNED LONG LONG | |
805 | { $$ = builtin_type_unsigned_long_long; } | |
806 | | UNSIGNED LONG LONG INT_KEYWORD | |
807 | { $$ = builtin_type_unsigned_long_long; } | |
808 | | SHORT INT_KEYWORD | |
809 | { $$ = builtin_type_short; } | |
810 | | UNSIGNED SHORT INT_KEYWORD | |
811 | { $$ = builtin_type_unsigned_short; } | |
aa220473 SG |
812 | | DOUBLE_KEYWORD |
813 | { $$ = builtin_type_double; } | |
814 | | LONG DOUBLE_KEYWORD | |
815 | { $$ = builtin_type_long_double; } | |
3d6b6a90 JG |
816 | | STRUCT name |
817 | { $$ = lookup_struct (copy_name ($2), | |
818 | expression_context_block); } | |
8050a57b FF |
819 | | CLASS name |
820 | { $$ = lookup_struct (copy_name ($2), | |
821 | expression_context_block); } | |
3d6b6a90 JG |
822 | | UNION name |
823 | { $$ = lookup_union (copy_name ($2), | |
824 | expression_context_block); } | |
825 | | ENUM name | |
826 | { $$ = lookup_enum (copy_name ($2), | |
827 | expression_context_block); } | |
828 | | UNSIGNED typename | |
829 | { $$ = lookup_unsigned_typename (TYPE_NAME($2.type)); } | |
830 | | UNSIGNED | |
831 | { $$ = builtin_type_unsigned_int; } | |
088c3a0b | 832 | | SIGNED_KEYWORD typename |
a252e715 | 833 | { $$ = lookup_signed_typename (TYPE_NAME($2.type)); } |
088c3a0b | 834 | | SIGNED_KEYWORD |
3d6b6a90 | 835 | { $$ = builtin_type_int; } |
4c53d9ca DHW |
836 | | TEMPLATE name '<' type '>' |
837 | { $$ = lookup_template_type(copy_name($2), $4, | |
838 | expression_context_block); | |
839 | } | |
f843c95f JK |
840 | /* "const" and "volatile" are curently ignored. A type qualifier |
841 | after the type is handled in the ptype rule. I think these could | |
842 | be too. */ | |
10a297b7 PB |
843 | | CONST_KEYWORD typebase { $$ = $2; } |
844 | | VOLATILE_KEYWORD typebase { $$ = $2; } | |
3d6b6a90 JG |
845 | ; |
846 | ||
847 | typename: TYPENAME | |
848 | | INT_KEYWORD | |
849 | { | |
850 | $$.stoken.ptr = "int"; | |
851 | $$.stoken.length = 3; | |
852 | $$.type = builtin_type_int; | |
853 | } | |
854 | | LONG | |
855 | { | |
856 | $$.stoken.ptr = "long"; | |
857 | $$.stoken.length = 4; | |
858 | $$.type = builtin_type_long; | |
859 | } | |
860 | | SHORT | |
861 | { | |
862 | $$.stoken.ptr = "short"; | |
863 | $$.stoken.length = 5; | |
864 | $$.type = builtin_type_short; | |
865 | } | |
866 | ; | |
867 | ||
868 | nonempty_typelist | |
869 | : type | |
e35843d4 | 870 | { $$ = (struct type **) malloc (sizeof (struct type *) * 2); |
6c316cfd | 871 | $<ivec>$[0] = 1; /* Number of types in vector */ |
3d6b6a90 JG |
872 | $$[1] = $1; |
873 | } | |
874 | | nonempty_typelist ',' type | |
6c316cfd | 875 | { int len = sizeof (struct type *) * (++($<ivec>1[0]) + 1); |
e35843d4 | 876 | $$ = (struct type **) realloc ((char *) $1, len); |
3d6b6a90 JG |
877 | $$[$<ivec>$[0]] = $3; |
878 | } | |
879 | ; | |
880 | ||
881 | name : NAME { $$ = $1.stoken; } | |
882 | | BLOCKNAME { $$ = $1.stoken; } | |
883 | | TYPENAME { $$ = $1.stoken; } | |
884 | | NAME_OR_INT { $$ = $1.stoken; } | |
3d6b6a90 JG |
885 | ; |
886 | ||
887 | name_not_typename : NAME | |
888 | | BLOCKNAME | |
889 | /* These would be useful if name_not_typename was useful, but it is just | |
890 | a fake for "variable", so these cause reduce/reduce conflicts because | |
891 | the parser can't tell whether NAME_OR_INT is a name_not_typename (=variable, | |
892 | =exp) or just an exp. If name_not_typename was ever used in an lvalue | |
893 | context where only a name could occur, this might be useful. | |
894 | | NAME_OR_INT | |
3d6b6a90 JG |
895 | */ |
896 | ; | |
897 | ||
898 | %% | |
899 | ||
900 | /* Take care of parsing a number (anything that starts with a digit). | |
901 | Set yylval and return the token type; update lexptr. | |
902 | LEN is the number of characters in it. */ | |
903 | ||
904 | /*** Needs some error checking for the float case ***/ | |
905 | ||
906 | static int | |
907 | parse_number (p, len, parsed_float, putithere) | |
908 | register char *p; | |
909 | register int len; | |
910 | int parsed_float; | |
911 | YYSTYPE *putithere; | |
912 | { | |
a9b32d61 JK |
913 | /* FIXME: Shouldn't these be unsigned? We don't deal with negative values |
914 | here, and we do kind of silly things like cast to unsigned. */ | |
3d6b6a90 JG |
915 | register LONGEST n = 0; |
916 | register LONGEST prevn = 0; | |
119dfbb7 | 917 | ULONGEST un; |
a9b32d61 | 918 | |
72cd0384 | 919 | register int i = 0; |
3d6b6a90 JG |
920 | register int c; |
921 | register int base = input_radix; | |
922 | int unsigned_p = 0; | |
a9b32d61 JK |
923 | |
924 | /* Number of "L" suffixes encountered. */ | |
2e6edad1 | 925 | int long_p = 0; |
a9b32d61 JK |
926 | |
927 | /* We have found a "L" or "U" suffix. */ | |
928 | int found_suffix = 0; | |
929 | ||
119dfbb7 | 930 | ULONGEST high_bit; |
2e6edad1 SC |
931 | struct type *signed_type; |
932 | struct type *unsigned_type; | |
3d6b6a90 | 933 | |
3d6b6a90 JG |
934 | if (parsed_float) |
935 | { | |
aa220473 SG |
936 | char c; |
937 | ||
3d6b6a90 | 938 | /* It's a float since it contains a point or an exponent. */ |
aa220473 SG |
939 | |
940 | if (sizeof (putithere->typed_val_float.dval) <= sizeof (float)) | |
941 | sscanf (p, "%g", &putithere->typed_val_float.dval); | |
942 | else if (sizeof (putithere->typed_val_float.dval) <= sizeof (double)) | |
943 | sscanf (p, "%lg", &putithere->typed_val_float.dval); | |
944 | else | |
07b77f5c FF |
945 | { |
946 | #ifdef PRINTF_HAS_LONG_DOUBLE | |
947 | sscanf (p, "%Lg", &putithere->typed_val_float.dval); | |
948 | #else | |
949 | /* Scan it into a double, then assign it to the long double. | |
950 | This at least wins with values representable in the range | |
951 | of doubles. */ | |
952 | double temp; | |
953 | sscanf (p, "%lg", &temp); | |
954 | putithere->typed_val_float.dval = temp; | |
955 | #endif | |
956 | } | |
aa220473 SG |
957 | |
958 | /* See if it has `f' or `l' suffix (float or long double). */ | |
959 | ||
960 | c = tolower (p[len - 1]); | |
961 | ||
962 | if (c == 'f') | |
963 | putithere->typed_val_float.type = builtin_type_float; | |
964 | else if (c == 'l') | |
965 | putithere->typed_val_float.type = builtin_type_long_double; | |
966 | else if (isdigit (c) || c == '.') | |
967 | putithere->typed_val_float.type = builtin_type_double; | |
968 | else | |
969 | return ERROR; | |
970 | ||
3d6b6a90 JG |
971 | return FLOAT; |
972 | } | |
973 | ||
974 | /* Handle base-switching prefixes 0x, 0t, 0d, 0 */ | |
975 | if (p[0] == '0') | |
976 | switch (p[1]) | |
977 | { | |
978 | case 'x': | |
979 | case 'X': | |
980 | if (len >= 3) | |
981 | { | |
982 | p += 2; | |
983 | base = 16; | |
984 | len -= 2; | |
985 | } | |
986 | break; | |
987 | ||
988 | case 't': | |
989 | case 'T': | |
990 | case 'd': | |
991 | case 'D': | |
992 | if (len >= 3) | |
993 | { | |
994 | p += 2; | |
995 | base = 10; | |
996 | len -= 2; | |
997 | } | |
998 | break; | |
999 | ||
1000 | default: | |
1001 | base = 8; | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | while (len-- > 0) | |
1006 | { | |
1007 | c = *p++; | |
1008 | if (c >= 'A' && c <= 'Z') | |
1009 | c += 'a' - 'A'; | |
1010 | if (c != 'l' && c != 'u') | |
1011 | n *= base; | |
1012 | if (c >= '0' && c <= '9') | |
a9b32d61 JK |
1013 | { |
1014 | if (found_suffix) | |
1015 | return ERROR; | |
1016 | n += i = c - '0'; | |
1017 | } | |
3d6b6a90 JG |
1018 | else |
1019 | { | |
1020 | if (base > 10 && c >= 'a' && c <= 'f') | |
a9b32d61 JK |
1021 | { |
1022 | if (found_suffix) | |
1023 | return ERROR; | |
1024 | n += i = c - 'a' + 10; | |
1025 | } | |
1026 | else if (c == 'l') | |
1027 | { | |
1028 | ++long_p; | |
1029 | found_suffix = 1; | |
1030 | } | |
1031 | else if (c == 'u') | |
1032 | { | |
1033 | unsigned_p = 1; | |
1034 | found_suffix = 1; | |
1035 | } | |
3d6b6a90 JG |
1036 | else |
1037 | return ERROR; /* Char not a digit */ | |
1038 | } | |
1039 | if (i >= base) | |
1040 | return ERROR; /* Invalid digit in this base */ | |
2e6edad1 | 1041 | |
2a5ec41d | 1042 | /* Portably test for overflow (only works for nonzero values, so make |
a9b32d61 JK |
1043 | a second check for zero). FIXME: Can't we just make n and prevn |
1044 | unsigned and avoid this? */ | |
1045 | if (c != 'l' && c != 'u' && (prevn >= n) && n != 0) | |
1046 | unsigned_p = 1; /* Try something unsigned */ | |
1047 | ||
1048 | /* Portably test for unsigned overflow. | |
1049 | FIXME: This check is wrong; for example it doesn't find overflow | |
1050 | on 0x123456789 when LONGEST is 32 bits. */ | |
1051 | if (c != 'l' && c != 'u' && n != 0) | |
1052 | { | |
119dfbb7 | 1053 | if ((unsigned_p && (ULONGEST) prevn >= (ULONGEST) n)) |
a9b32d61 JK |
1054 | error ("Numeric constant too large."); |
1055 | } | |
1056 | prevn = n; | |
1057 | } | |
1058 | ||
1059 | /* An integer constant is an int, a long, or a long long. An L | |
1060 | suffix forces it to be long; an LL suffix forces it to be long | |
1061 | long. If not forced to a larger size, it gets the first type of | |
1062 | the above that it fits in. To figure out whether it fits, we | |
1063 | shift it right and see whether anything remains. Note that we | |
1064 | can't shift sizeof (LONGEST) * HOST_CHAR_BIT bits or more in one | |
1065 | operation, because many compilers will warn about such a shift | |
1066 | (which always produces a zero result). Sometimes TARGET_INT_BIT | |
1067 | or TARGET_LONG_BIT will be that big, sometimes not. To deal with | |
1068 | the case where it is we just always shift the value more than | |
1069 | once, with fewer bits each time. */ | |
1070 | ||
119dfbb7 | 1071 | un = (ULONGEST)n >> 2; |
a9b32d61 | 1072 | if (long_p == 0 |
a39f7739 | 1073 | && (un >> (TARGET_INT_BIT - 2)) == 0) |
a9b32d61 | 1074 | { |
119dfbb7 | 1075 | high_bit = ((ULONGEST)1) << (TARGET_INT_BIT-1); |
a9b32d61 JK |
1076 | |
1077 | /* A large decimal (not hex or octal) constant (between INT_MAX | |
1078 | and UINT_MAX) is a long or unsigned long, according to ANSI, | |
1079 | never an unsigned int, but this code treats it as unsigned | |
1080 | int. This probably should be fixed. GCC gives a warning on | |
1081 | such constants. */ | |
1082 | ||
1083 | unsigned_type = builtin_type_unsigned_int; | |
1084 | signed_type = builtin_type_int; | |
1085 | } | |
1086 | else if (long_p <= 1 | |
a39f7739 | 1087 | && (un >> (TARGET_LONG_BIT - 2)) == 0) |
a9b32d61 | 1088 | { |
119dfbb7 | 1089 | high_bit = ((ULONGEST)1) << (TARGET_LONG_BIT-1); |
a9b32d61 JK |
1090 | unsigned_type = builtin_type_unsigned_long; |
1091 | signed_type = builtin_type_long; | |
1092 | } | |
1093 | else | |
1094 | { | |
119dfbb7 | 1095 | high_bit = (((ULONGEST)1) |
bb1f42d4 JK |
1096 | << (TARGET_LONG_LONG_BIT - 32 - 1) |
1097 | << 16 | |
1098 | << 16); | |
1099 | if (high_bit == 0) | |
1100 | /* A long long does not fit in a LONGEST. */ | |
1c95d7ab | 1101 | high_bit = |
119dfbb7 | 1102 | (ULONGEST)1 << (sizeof (LONGEST) * HOST_CHAR_BIT - 1); |
a9b32d61 JK |
1103 | unsigned_type = builtin_type_unsigned_long_long; |
1104 | signed_type = builtin_type_long_long; | |
3d6b6a90 | 1105 | } |
2e6edad1 | 1106 | |
aa220473 | 1107 | putithere->typed_val_int.val = n; |
2e6edad1 SC |
1108 | |
1109 | /* If the high bit of the worked out type is set then this number | |
1110 | has to be unsigned. */ | |
1111 | ||
1112 | if (unsigned_p || (n & high_bit)) | |
1113 | { | |
aa220473 | 1114 | putithere->typed_val_int.type = unsigned_type; |
2e6edad1 SC |
1115 | } |
1116 | else | |
1117 | { | |
aa220473 | 1118 | putithere->typed_val_int.type = signed_type; |
2e6edad1 SC |
1119 | } |
1120 | ||
1121 | return INT; | |
3d6b6a90 JG |
1122 | } |
1123 | ||
1124 | struct token | |
1125 | { | |
1126 | char *operator; | |
1127 | int token; | |
1128 | enum exp_opcode opcode; | |
1129 | }; | |
1130 | ||
a8a69e63 | 1131 | static const struct token tokentab3[] = |
3d6b6a90 JG |
1132 | { |
1133 | {">>=", ASSIGN_MODIFY, BINOP_RSH}, | |
1134 | {"<<=", ASSIGN_MODIFY, BINOP_LSH} | |
1135 | }; | |
1136 | ||
a8a69e63 | 1137 | static const struct token tokentab2[] = |
3d6b6a90 JG |
1138 | { |
1139 | {"+=", ASSIGN_MODIFY, BINOP_ADD}, | |
1140 | {"-=", ASSIGN_MODIFY, BINOP_SUB}, | |
1141 | {"*=", ASSIGN_MODIFY, BINOP_MUL}, | |
1142 | {"/=", ASSIGN_MODIFY, BINOP_DIV}, | |
1143 | {"%=", ASSIGN_MODIFY, BINOP_REM}, | |
e58de8a2 FF |
1144 | {"|=", ASSIGN_MODIFY, BINOP_BITWISE_IOR}, |
1145 | {"&=", ASSIGN_MODIFY, BINOP_BITWISE_AND}, | |
1146 | {"^=", ASSIGN_MODIFY, BINOP_BITWISE_XOR}, | |
3d6b6a90 JG |
1147 | {"++", INCREMENT, BINOP_END}, |
1148 | {"--", DECREMENT, BINOP_END}, | |
1149 | {"->", ARROW, BINOP_END}, | |
088c3a0b JG |
1150 | {"&&", ANDAND, BINOP_END}, |
1151 | {"||", OROR, BINOP_END}, | |
3d6b6a90 JG |
1152 | {"::", COLONCOLON, BINOP_END}, |
1153 | {"<<", LSH, BINOP_END}, | |
1154 | {">>", RSH, BINOP_END}, | |
1155 | {"==", EQUAL, BINOP_END}, | |
1156 | {"!=", NOTEQUAL, BINOP_END}, | |
1157 | {"<=", LEQ, BINOP_END}, | |
1158 | {">=", GEQ, BINOP_END} | |
1159 | }; | |
1160 | ||
1161 | /* Read one token, getting characters through lexptr. */ | |
1162 | ||
533d1dc7 | 1163 | static int |
3d6b6a90 JG |
1164 | yylex () |
1165 | { | |
bac89d6c FF |
1166 | int c; |
1167 | int namelen; | |
1168 | unsigned int i; | |
1169 | char *tokstart; | |
1170 | char *tokptr; | |
1171 | int tempbufindex; | |
1172 | static char *tempbuf; | |
1173 | static int tempbufsize; | |
1174 | ||
3d6b6a90 JG |
1175 | retry: |
1176 | ||
1177 | tokstart = lexptr; | |
1178 | /* See if it is a special token of length 3. */ | |
1179 | for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++) | |
45fe3db4 | 1180 | if (STREQN (tokstart, tokentab3[i].operator, 3)) |
3d6b6a90 JG |
1181 | { |
1182 | lexptr += 3; | |
1183 | yylval.opcode = tokentab3[i].opcode; | |
1184 | return tokentab3[i].token; | |
1185 | } | |
1186 | ||
1187 | /* See if it is a special token of length 2. */ | |
1188 | for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++) | |
45fe3db4 | 1189 | if (STREQN (tokstart, tokentab2[i].operator, 2)) |
3d6b6a90 JG |
1190 | { |
1191 | lexptr += 2; | |
1192 | yylval.opcode = tokentab2[i].opcode; | |
1193 | return tokentab2[i].token; | |
1194 | } | |
1195 | ||
1196 | switch (c = *tokstart) | |
1197 | { | |
1198 | case 0: | |
1199 | return 0; | |
1200 | ||
1201 | case ' ': | |
1202 | case '\t': | |
1203 | case '\n': | |
1204 | lexptr++; | |
1205 | goto retry; | |
1206 | ||
1207 | case '\'': | |
d630b615 FF |
1208 | /* We either have a character constant ('0' or '\177' for example) |
1209 | or we have a quoted symbol reference ('foo(int,int)' in C++ | |
1210 | for example). */ | |
3d6b6a90 JG |
1211 | lexptr++; |
1212 | c = *lexptr++; | |
1213 | if (c == '\\') | |
1214 | c = parse_escape (&lexptr); | |
961b8ebd JK |
1215 | else if (c == '\'') |
1216 | error ("Empty character constant."); | |
2e6edad1 | 1217 | |
aa220473 SG |
1218 | yylval.typed_val_int.val = c; |
1219 | yylval.typed_val_int.type = builtin_type_char; | |
2e6edad1 | 1220 | |
3d6b6a90 JG |
1221 | c = *lexptr++; |
1222 | if (c != '\'') | |
d630b615 FF |
1223 | { |
1224 | namelen = skip_quoted (tokstart) - tokstart; | |
1225 | if (namelen > 2) | |
1226 | { | |
1227 | lexptr = tokstart + namelen; | |
c0bca41c JK |
1228 | if (lexptr[-1] != '\'') |
1229 | error ("Unmatched single quote."); | |
d630b615 FF |
1230 | namelen -= 2; |
1231 | tokstart++; | |
1232 | goto tryname; | |
1233 | } | |
1234 | error ("Invalid character constant."); | |
1235 | } | |
2e6edad1 | 1236 | return INT; |
3d6b6a90 JG |
1237 | |
1238 | case '(': | |
1239 | paren_depth++; | |
1240 | lexptr++; | |
1241 | return c; | |
1242 | ||
1243 | case ')': | |
1244 | if (paren_depth == 0) | |
1245 | return 0; | |
1246 | paren_depth--; | |
1247 | lexptr++; | |
1248 | return c; | |
1249 | ||
1250 | case ',': | |
1251 | if (comma_terminates && paren_depth == 0) | |
1252 | return 0; | |
1253 | lexptr++; | |
1254 | return c; | |
1255 | ||
1256 | case '.': | |
1257 | /* Might be a floating point number. */ | |
1258 | if (lexptr[1] < '0' || lexptr[1] > '9') | |
1259 | goto symbol; /* Nope, must be a symbol. */ | |
1260 | /* FALL THRU into number case. */ | |
1261 | ||
1262 | case '0': | |
1263 | case '1': | |
1264 | case '2': | |
1265 | case '3': | |
1266 | case '4': | |
1267 | case '5': | |
1268 | case '6': | |
1269 | case '7': | |
1270 | case '8': | |
1271 | case '9': | |
1272 | { | |
1273 | /* It's a number. */ | |
1274 | int got_dot = 0, got_e = 0, toktype; | |
1275 | register char *p = tokstart; | |
1276 | int hex = input_radix > 10; | |
1277 | ||
1278 | if (c == '0' && (p[1] == 'x' || p[1] == 'X')) | |
1279 | { | |
1280 | p += 2; | |
1281 | hex = 1; | |
1282 | } | |
1283 | else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D')) | |
1284 | { | |
1285 | p += 2; | |
1286 | hex = 0; | |
1287 | } | |
1288 | ||
1289 | for (;; ++p) | |
1290 | { | |
ce13daa7 FF |
1291 | /* This test includes !hex because 'e' is a valid hex digit |
1292 | and thus does not indicate a floating point number when | |
1293 | the radix is hex. */ | |
3d6b6a90 JG |
1294 | if (!hex && !got_e && (*p == 'e' || *p == 'E')) |
1295 | got_dot = got_e = 1; | |
ce13daa7 FF |
1296 | /* This test does not include !hex, because a '.' always indicates |
1297 | a decimal floating point number regardless of the radix. */ | |
1298 | else if (!got_dot && *p == '.') | |
3d6b6a90 JG |
1299 | got_dot = 1; |
1300 | else if (got_e && (p[-1] == 'e' || p[-1] == 'E') | |
1301 | && (*p == '-' || *p == '+')) | |
1302 | /* This is the sign of the exponent, not the end of the | |
1303 | number. */ | |
1304 | continue; | |
1305 | /* We will take any letters or digits. parse_number will | |
1306 | complain if past the radix, or if L or U are not final. */ | |
1307 | else if ((*p < '0' || *p > '9') | |
1308 | && ((*p < 'a' || *p > 'z') | |
1309 | && (*p < 'A' || *p > 'Z'))) | |
1310 | break; | |
1311 | } | |
1312 | toktype = parse_number (tokstart, p - tokstart, got_dot|got_e, &yylval); | |
1313 | if (toktype == ERROR) | |
1314 | { | |
1315 | char *err_copy = (char *) alloca (p - tokstart + 1); | |
1316 | ||
4ed3a9ea | 1317 | memcpy (err_copy, tokstart, p - tokstart); |
3d6b6a90 JG |
1318 | err_copy[p - tokstart] = 0; |
1319 | error ("Invalid number \"%s\".", err_copy); | |
1320 | } | |
1321 | lexptr = p; | |
1322 | return toktype; | |
1323 | } | |
1324 | ||
1325 | case '+': | |
1326 | case '-': | |
1327 | case '*': | |
1328 | case '/': | |
1329 | case '%': | |
1330 | case '|': | |
1331 | case '&': | |
1332 | case '^': | |
1333 | case '~': | |
1334 | case '!': | |
1335 | case '@': | |
1336 | case '<': | |
1337 | case '>': | |
1338 | case '[': | |
1339 | case ']': | |
1340 | case '?': | |
1341 | case ':': | |
1342 | case '=': | |
1343 | case '{': | |
1344 | case '}': | |
1345 | symbol: | |
1346 | lexptr++; | |
1347 | return c; | |
1348 | ||
1349 | case '"': | |
bac89d6c FF |
1350 | |
1351 | /* Build the gdb internal form of the input string in tempbuf, | |
1352 | translating any standard C escape forms seen. Note that the | |
1353 | buffer is null byte terminated *only* for the convenience of | |
1354 | debugging gdb itself and printing the buffer contents when | |
1355 | the buffer contains no embedded nulls. Gdb does not depend | |
1356 | upon the buffer being null byte terminated, it uses the length | |
1357 | string instead. This allows gdb to handle C strings (as well | |
1358 | as strings in other languages) with embedded null bytes */ | |
1359 | ||
1360 | tokptr = ++tokstart; | |
1361 | tempbufindex = 0; | |
1362 | ||
1363 | do { | |
1364 | /* Grow the static temp buffer if necessary, including allocating | |
1365 | the first one on demand. */ | |
1366 | if (tempbufindex + 1 >= tempbufsize) | |
3d6b6a90 | 1367 | { |
bac89d6c FF |
1368 | tempbuf = (char *) realloc (tempbuf, tempbufsize += 64); |
1369 | } | |
1370 | switch (*tokptr) | |
1371 | { | |
1372 | case '\0': | |
1373 | case '"': | |
1374 | /* Do nothing, loop will terminate. */ | |
1375 | break; | |
1376 | case '\\': | |
1377 | tokptr++; | |
1378 | c = parse_escape (&tokptr); | |
1379 | if (c == -1) | |
3d6b6a90 | 1380 | { |
bac89d6c | 1381 | continue; |
3d6b6a90 | 1382 | } |
bac89d6c FF |
1383 | tempbuf[tempbufindex++] = c; |
1384 | break; | |
1385 | default: | |
1386 | tempbuf[tempbufindex++] = *tokptr++; | |
1387 | break; | |
3d6b6a90 | 1388 | } |
bac89d6c FF |
1389 | } while ((*tokptr != '"') && (*tokptr != '\0')); |
1390 | if (*tokptr++ != '"') | |
1391 | { | |
1392 | error ("Unterminated string in expression."); | |
1393 | } | |
1394 | tempbuf[tempbufindex] = '\0'; /* See note above */ | |
1395 | yylval.sval.ptr = tempbuf; | |
1396 | yylval.sval.length = tempbufindex; | |
1397 | lexptr = tokptr; | |
1398 | return (STRING); | |
3d6b6a90 JG |
1399 | } |
1400 | ||
1401 | if (!(c == '_' || c == '$' | |
1402 | || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))) | |
1403 | /* We must have come across a bad character (e.g. ';'). */ | |
1404 | error ("Invalid character '%c' in expression.", c); | |
1405 | ||
1406 | /* It's a name. See how long it is. */ | |
1407 | namelen = 0; | |
1408 | for (c = tokstart[namelen]; | |
1409 | (c == '_' || c == '$' || (c >= '0' && c <= '9') | |
a8d23c73 KH |
1410 | || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '<');) |
1411 | { | |
07422705 PS |
1412 | /* Template parameter lists are part of the name. |
1413 | FIXME: This mishandles `print $a<4&&$a>3'. */ | |
1414 | ||
1415 | if (c == '<') | |
1416 | { | |
1417 | int i = namelen; | |
1418 | int nesting_level = 1; | |
1419 | while (tokstart[++i]) | |
1420 | { | |
1421 | if (tokstart[i] == '<') | |
1422 | nesting_level++; | |
1423 | else if (tokstart[i] == '>') | |
1424 | { | |
1425 | if (--nesting_level == 0) | |
1426 | break; | |
1427 | } | |
1428 | } | |
1429 | if (tokstart[i] == '>') | |
1430 | namelen = i; | |
1431 | else | |
1432 | break; | |
1433 | } | |
1434 | c = tokstart[++namelen]; | |
1435 | } | |
3d6b6a90 JG |
1436 | |
1437 | /* The token "if" terminates the expression and is NOT | |
1438 | removed from the input stream. */ | |
1439 | if (namelen == 2 && tokstart[0] == 'i' && tokstart[1] == 'f') | |
1440 | { | |
1441 | return 0; | |
1442 | } | |
1443 | ||
1444 | lexptr += namelen; | |
1445 | ||
d630b615 | 1446 | tryname: |
3d6b6a90 | 1447 | |
3d6b6a90 JG |
1448 | /* Catch specific keywords. Should be done with a data structure. */ |
1449 | switch (namelen) | |
1450 | { | |
1451 | case 8: | |
45fe3db4 | 1452 | if (STREQN (tokstart, "unsigned", 8)) |
3d6b6a90 | 1453 | return UNSIGNED; |
5a4e7215 | 1454 | if (current_language->la_language == language_cplus |
45fe3db4 | 1455 | && STREQN (tokstart, "template", 8)) |
4c53d9ca | 1456 | return TEMPLATE; |
45fe3db4 | 1457 | if (STREQN (tokstart, "volatile", 8)) |
a252e715 | 1458 | return VOLATILE_KEYWORD; |
3d6b6a90 JG |
1459 | break; |
1460 | case 6: | |
45fe3db4 | 1461 | if (STREQN (tokstart, "struct", 6)) |
3d6b6a90 | 1462 | return STRUCT; |
45fe3db4 | 1463 | if (STREQN (tokstart, "signed", 6)) |
088c3a0b | 1464 | return SIGNED_KEYWORD; |
45fe3db4 | 1465 | if (STREQN (tokstart, "sizeof", 6)) |
3d6b6a90 | 1466 | return SIZEOF; |
aa220473 SG |
1467 | if (STREQN (tokstart, "double", 6)) |
1468 | return DOUBLE_KEYWORD; | |
3d6b6a90 JG |
1469 | break; |
1470 | case 5: | |
866ecded | 1471 | if (current_language->la_language == language_cplus |
45fe3db4 | 1472 | && STREQN (tokstart, "class", 5)) |
8050a57b | 1473 | return CLASS; |
45fe3db4 | 1474 | if (STREQN (tokstart, "union", 5)) |
3d6b6a90 | 1475 | return UNION; |
45fe3db4 | 1476 | if (STREQN (tokstart, "short", 5)) |
3d6b6a90 | 1477 | return SHORT; |
45fe3db4 | 1478 | if (STREQN (tokstart, "const", 5)) |
a252e715 | 1479 | return CONST_KEYWORD; |
3d6b6a90 JG |
1480 | break; |
1481 | case 4: | |
45fe3db4 | 1482 | if (STREQN (tokstart, "enum", 4)) |
3d6b6a90 | 1483 | return ENUM; |
45fe3db4 | 1484 | if (STREQN (tokstart, "long", 4)) |
3d6b6a90 | 1485 | return LONG; |
5a4e7215 | 1486 | if (current_language->la_language == language_cplus |
45fe3db4 | 1487 | && STREQN (tokstart, "this", 4)) |
3d6b6a90 JG |
1488 | { |
1489 | static const char this_name[] = | |
1490 | { CPLUS_MARKER, 't', 'h', 'i', 's', '\0' }; | |
1491 | ||
1492 | if (lookup_symbol (this_name, expression_context_block, | |
bcca9a08 FF |
1493 | VAR_NAMESPACE, (int *) NULL, |
1494 | (struct symtab **) NULL)) | |
3d6b6a90 JG |
1495 | return THIS; |
1496 | } | |
1497 | break; | |
1498 | case 3: | |
45fe3db4 | 1499 | if (STREQN (tokstart, "int", 3)) |
3d6b6a90 JG |
1500 | return INT_KEYWORD; |
1501 | break; | |
1502 | default: | |
1503 | break; | |
1504 | } | |
1505 | ||
1506 | yylval.sval.ptr = tokstart; | |
1507 | yylval.sval.length = namelen; | |
1508 | ||
3d6b6a90 JG |
1509 | if (*tokstart == '$') |
1510 | { | |
c700638c | 1511 | write_dollar_variable (yylval.sval); |
3d6b6a90 JG |
1512 | return VARIABLE; |
1513 | } | |
1514 | ||
1515 | /* Use token-type BLOCKNAME for symbols that happen to be defined as | |
1516 | functions or symtabs. If this is not so, then ... | |
1517 | Use token-type TYPENAME for symbols that happen to be defined | |
1518 | currently as names of types; NAME for other symbols. | |
1519 | The caller is not constrained to care about the distinction. */ | |
1520 | { | |
1521 | char *tmp = copy_name (yylval.sval); | |
1522 | struct symbol *sym; | |
1523 | int is_a_field_of_this = 0; | |
1524 | int hextype; | |
1525 | ||
1526 | sym = lookup_symbol (tmp, expression_context_block, | |
545af6ce PB |
1527 | VAR_NAMESPACE, |
1528 | current_language->la_language == language_cplus | |
bcca9a08 FF |
1529 | ? &is_a_field_of_this : (int *) NULL, |
1530 | (struct symtab **) NULL); | |
963ee102 JK |
1531 | /* Call lookup_symtab, not lookup_partial_symtab, in case there are |
1532 | no psymtabs (coff, xcoff, or some future change to blow away the | |
1533 | psymtabs once once symbols are read). */ | |
3d6b6a90 | 1534 | if ((sym && SYMBOL_CLASS (sym) == LOC_BLOCK) || |
963ee102 | 1535 | lookup_symtab (tmp)) |
3d6b6a90 JG |
1536 | { |
1537 | yylval.ssym.sym = sym; | |
1538 | yylval.ssym.is_a_field_of_this = is_a_field_of_this; | |
1539 | return BLOCKNAME; | |
1540 | } | |
1541 | if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
1542 | { | |
f28c6e38 JK |
1543 | #if 1 |
1544 | /* Despite the following flaw, we need to keep this code enabled. | |
1545 | Because we can get called from check_stub_method, if we don't | |
1546 | handle nested types then it screws many operations in any | |
1547 | program which uses nested types. */ | |
dfb4a508 JK |
1548 | /* In "A::x", if x is a member function of A and there happens |
1549 | to be a type (nested or not, since the stabs don't make that | |
1550 | distinction) named x, then this code incorrectly thinks we | |
1551 | are dealing with nested types rather than a member function. */ | |
1552 | ||
96c68efa JK |
1553 | char *p; |
1554 | char *namestart; | |
1555 | struct symbol *best_sym; | |
1556 | ||
1557 | /* Look ahead to detect nested types. This probably should be | |
1558 | done in the grammar, but trying seemed to introduce a lot | |
1559 | of shift/reduce and reduce/reduce conflicts. It's possible | |
1560 | that it could be done, though. Or perhaps a non-grammar, but | |
1561 | less ad hoc, approach would work well. */ | |
1562 | ||
1563 | /* Since we do not currently have any way of distinguishing | |
1564 | a nested type from a non-nested one (the stabs don't tell | |
1565 | us whether a type is nested), we just ignore the | |
1566 | containing type. */ | |
1567 | ||
1568 | p = lexptr; | |
1569 | best_sym = sym; | |
1570 | while (1) | |
1571 | { | |
1572 | /* Skip whitespace. */ | |
1573 | while (*p == ' ' || *p == '\t' || *p == '\n') | |
1574 | ++p; | |
1575 | if (*p == ':' && p[1] == ':') | |
1576 | { | |
1577 | /* Skip the `::'. */ | |
1578 | p += 2; | |
1579 | /* Skip whitespace. */ | |
1580 | while (*p == ' ' || *p == '\t' || *p == '\n') | |
1581 | ++p; | |
1582 | namestart = p; | |
1583 | while (*p == '_' || *p == '$' || (*p >= '0' && *p <= '9') | |
1584 | || (*p >= 'a' && *p <= 'z') | |
1585 | || (*p >= 'A' && *p <= 'Z')) | |
1586 | ++p; | |
1587 | if (p != namestart) | |
1588 | { | |
1589 | struct symbol *cur_sym; | |
1590 | /* As big as the whole rest of the expression, which is | |
1591 | at least big enough. */ | |
a8d23c73 KH |
1592 | char *ncopy = alloca (strlen (tmp)+strlen (namestart)+3); |
1593 | char *tmp1; | |
1594 | ||
1595 | tmp1 = ncopy; | |
1596 | memcpy (tmp1, tmp, strlen (tmp)); | |
1597 | tmp1 += strlen (tmp); | |
1598 | memcpy (tmp1, "::", 2); | |
1599 | tmp1 += 2; | |
1600 | memcpy (tmp1, namestart, p - namestart); | |
1601 | tmp1[p - namestart] = '\0'; | |
1602 | cur_sym = lookup_symbol (ncopy, expression_context_block, | |
bcca9a08 FF |
1603 | VAR_NAMESPACE, (int *) NULL, |
1604 | (struct symtab **) NULL); | |
96c68efa JK |
1605 | if (cur_sym) |
1606 | { | |
1607 | if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF) | |
1608 | { | |
1609 | best_sym = cur_sym; | |
1610 | lexptr = p; | |
1611 | } | |
1612 | else | |
1613 | break; | |
1614 | } | |
1615 | else | |
1616 | break; | |
1617 | } | |
1618 | else | |
1619 | break; | |
1620 | } | |
1621 | else | |
1622 | break; | |
1623 | } | |
1624 | ||
1625 | yylval.tsym.type = SYMBOL_TYPE (best_sym); | |
dfb4a508 JK |
1626 | #else /* not 0 */ |
1627 | yylval.tsym.type = SYMBOL_TYPE (sym); | |
1628 | #endif /* not 0 */ | |
3d6b6a90 JG |
1629 | return TYPENAME; |
1630 | } | |
1631 | if ((yylval.tsym.type = lookup_primitive_typename (tmp)) != 0) | |
1632 | return TYPENAME; | |
1633 | ||
1634 | /* Input names that aren't symbols but ARE valid hex numbers, | |
1635 | when the input radix permits them, can be names or numbers | |
1636 | depending on the parse. Note we support radixes > 16 here. */ | |
1637 | if (!sym && | |
1638 | ((tokstart[0] >= 'a' && tokstart[0] < 'a' + input_radix - 10) || | |
1639 | (tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10))) | |
1640 | { | |
1641 | YYSTYPE newlval; /* Its value is ignored. */ | |
1642 | hextype = parse_number (tokstart, namelen, 0, &newlval); | |
1643 | if (hextype == INT) | |
1644 | { | |
1645 | yylval.ssym.sym = sym; | |
1646 | yylval.ssym.is_a_field_of_this = is_a_field_of_this; | |
1647 | return NAME_OR_INT; | |
1648 | } | |
3d6b6a90 JG |
1649 | } |
1650 | ||
1651 | /* Any other kind of symbol */ | |
1652 | yylval.ssym.sym = sym; | |
1653 | yylval.ssym.is_a_field_of_this = is_a_field_of_this; | |
1654 | return NAME; | |
1655 | } | |
1656 | } | |
1657 | ||
1658 | void | |
1659 | yyerror (msg) | |
1660 | char *msg; | |
1661 | { | |
8db1a922 | 1662 | error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr); |
3d6b6a90 | 1663 | } |