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c906108c | 1 | /* YACC parser for C expressions, for GDB. |
e2882c85 | 2 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
c906108c | 3 | |
5b1ba0e5 | 4 | This file is part of GDB. |
c906108c | 5 | |
5b1ba0e5 NS |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
5b1ba0e5 NS |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
5b1ba0e5 NS |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
c906108c SS |
18 | |
19 | /* Parse a C expression from text in a string, | |
20 | and return the result as a struct expression pointer. | |
21 | That structure contains arithmetic operations in reverse polish, | |
22 | with constants represented by operations that are followed by special data. | |
23 | See expression.h for the details of the format. | |
24 | What is important here is that it can be built up sequentially | |
25 | during the process of parsing; the lower levels of the tree always | |
26 | come first in the result. | |
27 | ||
28 | Note that malloc's and realloc's in this file are transformed to | |
29 | xmalloc and xrealloc respectively by the same sed command in the | |
30 | makefile that remaps any other malloc/realloc inserted by the parser | |
31 | generator. Doing this with #defines and trying to control the interaction | |
32 | with include files (<malloc.h> and <stdlib.h> for example) just became | |
33 | too messy, particularly when such includes can be inserted at random | |
34 | times by the parser generator. */ | |
4d29c0a8 | 35 | |
c906108c SS |
36 | %{ |
37 | ||
38 | #include "defs.h" | |
c906108c SS |
39 | #include <ctype.h> |
40 | #include "expression.h" | |
41 | #include "value.h" | |
42 | #include "parser-defs.h" | |
43 | #include "language.h" | |
44 | #include "c-lang.h" | |
b1b60145 | 45 | #include "c-support.h" |
c906108c SS |
46 | #include "bfd.h" /* Required by objfiles.h. */ |
47 | #include "symfile.h" /* Required by objfiles.h. */ | |
48 | #include "objfiles.h" /* For have_full_symbols and have_partial_symbols */ | |
234b45d4 | 49 | #include "charset.h" |
fe898f56 | 50 | #include "block.h" |
79c2c32d | 51 | #include "cp-support.h" |
7c8adf68 | 52 | #include "macroscope.h" |
f2e8016f | 53 | #include "objc-lang.h" |
79d43c61 | 54 | #include "typeprint.h" |
6592e36f | 55 | #include "cp-abi.h" |
c906108c | 56 | |
410a0ff2 | 57 | #define parse_type(ps) builtin_type (parse_gdbarch (ps)) |
3e79cecf | 58 | |
b3f11165 PA |
59 | /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, |
60 | etc). */ | |
61 | #define GDB_YY_REMAP_PREFIX c_ | |
62 | #include "yy-remap.h" | |
f461f5cf | 63 | |
410a0ff2 SDJ |
64 | /* The state of the parser, used internally when we are parsing the |
65 | expression. */ | |
66 | ||
67 | static struct parser_state *pstate = NULL; | |
68 | ||
a14ed312 | 69 | int yyparse (void); |
c906108c | 70 | |
a14ed312 | 71 | static int yylex (void); |
c906108c | 72 | |
69d340c6 | 73 | static void yyerror (const char *); |
c906108c | 74 | |
3d567982 TT |
75 | static int type_aggregate_p (struct type *); |
76 | ||
c906108c SS |
77 | %} |
78 | ||
79 | /* Although the yacc "value" of an expression is not used, | |
80 | since the result is stored in the structure being created, | |
81 | other node types do have values. */ | |
82 | ||
83 | %union | |
84 | { | |
85 | LONGEST lval; | |
86 | struct { | |
87 | LONGEST val; | |
88 | struct type *type; | |
89 | } typed_val_int; | |
27bc4d80 TJB |
90 | struct { |
91 | gdb_byte val[16]; | |
92 | struct type *type; | |
edd079d9 | 93 | } typed_val_float; |
c906108c SS |
94 | struct type *tval; |
95 | struct stoken sval; | |
6c7a06a3 | 96 | struct typed_stoken tsval; |
c906108c SS |
97 | struct ttype tsym; |
98 | struct symtoken ssym; | |
99 | int voidval; | |
3977b71f | 100 | const struct block *bval; |
c906108c | 101 | enum exp_opcode opcode; |
c906108c | 102 | |
6c7a06a3 | 103 | struct stoken_vector svec; |
71918a86 | 104 | VEC (type_ptr) *tvec; |
fcde5961 TT |
105 | |
106 | struct type_stack *type_stack; | |
f2e8016f | 107 | |
fe978cb0 | 108 | struct objc_class_str theclass; |
c906108c SS |
109 | } |
110 | ||
111 | %{ | |
112 | /* YYSTYPE gets defined by %union */ | |
410a0ff2 SDJ |
113 | static int parse_number (struct parser_state *par_state, |
114 | const char *, int, int, YYSTYPE *); | |
66c53f2b | 115 | static struct stoken operator_stoken (const char *); |
e314d629 | 116 | static void check_parameter_typelist (VEC (type_ptr) *); |
410a0ff2 SDJ |
117 | static void write_destructor_name (struct parser_state *par_state, |
118 | struct stoken); | |
9507860e | 119 | |
12c5175d | 120 | #ifdef YYBISON |
9507860e TT |
121 | static void c_print_token (FILE *file, int type, YYSTYPE value); |
122 | #define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE) | |
12c5175d | 123 | #endif |
c906108c SS |
124 | %} |
125 | ||
858be34c | 126 | %type <voidval> exp exp1 type_exp start variable qualified_name lcurly function_method |
c906108c | 127 | %type <lval> rcurly |
48e32051 | 128 | %type <tval> type typebase |
a6fb9c08 | 129 | %type <tvec> nonempty_typelist func_mod parameter_typelist |
c906108c SS |
130 | /* %type <bval> block */ |
131 | ||
132 | /* Fancy type parsing. */ | |
c906108c SS |
133 | %type <tval> ptype |
134 | %type <lval> array_mod | |
95c391b6 | 135 | %type <tval> conversion_type_id |
c906108c | 136 | |
fcde5961 TT |
137 | %type <type_stack> ptr_operator_ts abs_decl direct_abs_decl |
138 | ||
c906108c SS |
139 | %token <typed_val_int> INT |
140 | %token <typed_val_float> FLOAT | |
141 | ||
142 | /* Both NAME and TYPENAME tokens represent symbols in the input, | |
143 | and both convey their data as strings. | |
144 | But a TYPENAME is a string that happens to be defined as a typedef | |
145 | or builtin type name (such as int or char) | |
146 | and a NAME is any other symbol. | |
147 | Contexts where this distinction is not important can use the | |
148 | nonterminal "name", which matches either NAME or TYPENAME. */ | |
149 | ||
6c7a06a3 | 150 | %token <tsval> STRING |
f2e8016f TT |
151 | %token <sval> NSSTRING /* ObjC Foundation "NSString" literal */ |
152 | %token SELECTOR /* ObjC "@selector" pseudo-operator */ | |
6c7a06a3 | 153 | %token <tsval> CHAR |
c906108c | 154 | %token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence. */ |
7322dca9 | 155 | %token <ssym> UNKNOWN_CPP_NAME |
65d12d83 | 156 | %token <voidval> COMPLETE |
c906108c | 157 | %token <tsym> TYPENAME |
fe978cb0 | 158 | %token <theclass> CLASSNAME /* ObjC Class name */ |
0f5d3f63 | 159 | %type <sval> name field_name |
6c7a06a3 | 160 | %type <svec> string_exp |
c906108c | 161 | %type <ssym> name_not_typename |
fe978cb0 | 162 | %type <tsym> type_name |
c906108c | 163 | |
f2e8016f TT |
164 | /* This is like a '[' token, but is only generated when parsing |
165 | Objective C. This lets us reuse the same parser without | |
166 | erroneously parsing ObjC-specific expressions in C. */ | |
167 | %token OBJC_LBRAC | |
168 | ||
c906108c SS |
169 | /* A NAME_OR_INT is a symbol which is not known in the symbol table, |
170 | but which would parse as a valid number in the current input radix. | |
171 | E.g. "c" when input_radix==16. Depending on the parse, it will be | |
172 | turned into a name or into a number. */ | |
173 | ||
4d29c0a8 | 174 | %token <ssym> NAME_OR_INT |
c906108c | 175 | |
66c53f2b | 176 | %token OPERATOR |
007e1530 | 177 | %token STRUCT CLASS UNION ENUM SIZEOF ALIGNOF UNSIGNED COLONCOLON |
c906108c SS |
178 | %token TEMPLATE |
179 | %token ERROR | |
66c53f2b | 180 | %token NEW DELETE |
fe978cb0 | 181 | %type <sval> oper |
4e8f195d | 182 | %token REINTERPRET_CAST DYNAMIC_CAST STATIC_CAST CONST_CAST |
941b2081 | 183 | %token ENTRY |
608b4967 TT |
184 | %token TYPEOF |
185 | %token DECLTYPE | |
6e72ca20 | 186 | %token TYPEID |
c906108c SS |
187 | |
188 | /* Special type cases, put in to allow the parser to distinguish different | |
189 | legal basetypes. */ | |
190 | %token SIGNED_KEYWORD LONG SHORT INT_KEYWORD CONST_KEYWORD VOLATILE_KEYWORD DOUBLE_KEYWORD | |
191 | ||
48e32051 | 192 | %token <sval> VARIABLE |
c906108c SS |
193 | |
194 | %token <opcode> ASSIGN_MODIFY | |
195 | ||
196 | /* C++ */ | |
c906108c SS |
197 | %token TRUEKEYWORD |
198 | %token FALSEKEYWORD | |
199 | ||
200 | ||
201 | %left ',' | |
202 | %left ABOVE_COMMA | |
203 | %right '=' ASSIGN_MODIFY | |
204 | %right '?' | |
205 | %left OROR | |
206 | %left ANDAND | |
207 | %left '|' | |
208 | %left '^' | |
209 | %left '&' | |
210 | %left EQUAL NOTEQUAL | |
211 | %left '<' '>' LEQ GEQ | |
212 | %left LSH RSH | |
213 | %left '@' | |
214 | %left '+' '-' | |
215 | %left '*' '/' '%' | |
216 | %right UNARY INCREMENT DECREMENT | |
f2e8016f | 217 | %right ARROW ARROW_STAR '.' DOT_STAR '[' OBJC_LBRAC '(' |
4d29c0a8 | 218 | %token <ssym> BLOCKNAME |
c906108c SS |
219 | %token <bval> FILENAME |
220 | %type <bval> block | |
221 | %left COLONCOLON | |
222 | ||
a6fb9c08 TT |
223 | %token DOTDOTDOT |
224 | ||
c906108c SS |
225 | \f |
226 | %% | |
227 | ||
228 | start : exp1 | |
229 | | type_exp | |
230 | ; | |
231 | ||
232 | type_exp: type | |
410a0ff2 SDJ |
233 | { write_exp_elt_opcode(pstate, OP_TYPE); |
234 | write_exp_elt_type(pstate, $1); | |
235 | write_exp_elt_opcode(pstate, OP_TYPE);} | |
608b4967 TT |
236 | | TYPEOF '(' exp ')' |
237 | { | |
410a0ff2 | 238 | write_exp_elt_opcode (pstate, OP_TYPEOF); |
608b4967 TT |
239 | } |
240 | | TYPEOF '(' type ')' | |
241 | { | |
410a0ff2 SDJ |
242 | write_exp_elt_opcode (pstate, OP_TYPE); |
243 | write_exp_elt_type (pstate, $3); | |
244 | write_exp_elt_opcode (pstate, OP_TYPE); | |
608b4967 TT |
245 | } |
246 | | DECLTYPE '(' exp ')' | |
247 | { | |
410a0ff2 | 248 | write_exp_elt_opcode (pstate, OP_DECLTYPE); |
608b4967 | 249 | } |
c906108c SS |
250 | ; |
251 | ||
252 | /* Expressions, including the comma operator. */ | |
253 | exp1 : exp | |
254 | | exp1 ',' exp | |
410a0ff2 | 255 | { write_exp_elt_opcode (pstate, BINOP_COMMA); } |
c906108c SS |
256 | ; |
257 | ||
258 | /* Expressions, not including the comma operator. */ | |
259 | exp : '*' exp %prec UNARY | |
410a0ff2 | 260 | { write_exp_elt_opcode (pstate, UNOP_IND); } |
ef944135 | 261 | ; |
c906108c SS |
262 | |
263 | exp : '&' exp %prec UNARY | |
410a0ff2 | 264 | { write_exp_elt_opcode (pstate, UNOP_ADDR); } |
ef944135 | 265 | ; |
c906108c SS |
266 | |
267 | exp : '-' exp %prec UNARY | |
410a0ff2 | 268 | { write_exp_elt_opcode (pstate, UNOP_NEG); } |
c906108c SS |
269 | ; |
270 | ||
36e9969c | 271 | exp : '+' exp %prec UNARY |
410a0ff2 | 272 | { write_exp_elt_opcode (pstate, UNOP_PLUS); } |
36e9969c NS |
273 | ; |
274 | ||
c906108c | 275 | exp : '!' exp %prec UNARY |
410a0ff2 | 276 | { write_exp_elt_opcode (pstate, UNOP_LOGICAL_NOT); } |
c906108c SS |
277 | ; |
278 | ||
279 | exp : '~' exp %prec UNARY | |
410a0ff2 | 280 | { write_exp_elt_opcode (pstate, UNOP_COMPLEMENT); } |
c906108c SS |
281 | ; |
282 | ||
283 | exp : INCREMENT exp %prec UNARY | |
410a0ff2 | 284 | { write_exp_elt_opcode (pstate, UNOP_PREINCREMENT); } |
c906108c SS |
285 | ; |
286 | ||
287 | exp : DECREMENT exp %prec UNARY | |
410a0ff2 | 288 | { write_exp_elt_opcode (pstate, UNOP_PREDECREMENT); } |
c906108c SS |
289 | ; |
290 | ||
291 | exp : exp INCREMENT %prec UNARY | |
410a0ff2 | 292 | { write_exp_elt_opcode (pstate, UNOP_POSTINCREMENT); } |
c906108c SS |
293 | ; |
294 | ||
295 | exp : exp DECREMENT %prec UNARY | |
410a0ff2 | 296 | { write_exp_elt_opcode (pstate, UNOP_POSTDECREMENT); } |
c906108c SS |
297 | ; |
298 | ||
6e72ca20 | 299 | exp : TYPEID '(' exp ')' %prec UNARY |
410a0ff2 | 300 | { write_exp_elt_opcode (pstate, OP_TYPEID); } |
6e72ca20 TT |
301 | ; |
302 | ||
303 | exp : TYPEID '(' type_exp ')' %prec UNARY | |
410a0ff2 | 304 | { write_exp_elt_opcode (pstate, OP_TYPEID); } |
6e72ca20 TT |
305 | ; |
306 | ||
c906108c | 307 | exp : SIZEOF exp %prec UNARY |
410a0ff2 | 308 | { write_exp_elt_opcode (pstate, UNOP_SIZEOF); } |
c906108c SS |
309 | ; |
310 | ||
007e1530 TT |
311 | exp : ALIGNOF '(' type_exp ')' %prec UNARY |
312 | { write_exp_elt_opcode (pstate, UNOP_ALIGNOF); } | |
313 | ; | |
314 | ||
0f5d3f63 | 315 | exp : exp ARROW field_name |
410a0ff2 SDJ |
316 | { write_exp_elt_opcode (pstate, STRUCTOP_PTR); |
317 | write_exp_string (pstate, $3); | |
318 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); } | |
c906108c SS |
319 | ; |
320 | ||
0f5d3f63 | 321 | exp : exp ARROW field_name COMPLETE |
410a0ff2 SDJ |
322 | { mark_struct_expression (pstate); |
323 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); | |
324 | write_exp_string (pstate, $3); | |
325 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); } | |
65d12d83 TT |
326 | ; |
327 | ||
328 | exp : exp ARROW COMPLETE | |
329 | { struct stoken s; | |
410a0ff2 SDJ |
330 | mark_struct_expression (pstate); |
331 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); | |
65d12d83 TT |
332 | s.ptr = ""; |
333 | s.length = 0; | |
410a0ff2 SDJ |
334 | write_exp_string (pstate, s); |
335 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); } | |
65d12d83 TT |
336 | ; |
337 | ||
24955f63 | 338 | exp : exp ARROW '~' name |
410a0ff2 SDJ |
339 | { write_exp_elt_opcode (pstate, STRUCTOP_PTR); |
340 | write_destructor_name (pstate, $4); | |
341 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); } | |
24955f63 TT |
342 | ; |
343 | ||
344 | exp : exp ARROW '~' name COMPLETE | |
410a0ff2 SDJ |
345 | { mark_struct_expression (pstate); |
346 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); | |
347 | write_destructor_name (pstate, $4); | |
348 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); } | |
24955f63 TT |
349 | ; |
350 | ||
c906108c SS |
351 | exp : exp ARROW qualified_name |
352 | { /* exp->type::name becomes exp->*(&type::name) */ | |
353 | /* Note: this doesn't work if name is a | |
354 | static member! FIXME */ | |
410a0ff2 SDJ |
355 | write_exp_elt_opcode (pstate, UNOP_ADDR); |
356 | write_exp_elt_opcode (pstate, STRUCTOP_MPTR); } | |
c906108c SS |
357 | ; |
358 | ||
c1af96a0 | 359 | exp : exp ARROW_STAR exp |
410a0ff2 | 360 | { write_exp_elt_opcode (pstate, STRUCTOP_MPTR); } |
c906108c SS |
361 | ; |
362 | ||
0f5d3f63 | 363 | exp : exp '.' field_name |
410a0ff2 SDJ |
364 | { write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); |
365 | write_exp_string (pstate, $3); | |
366 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); } | |
c906108c SS |
367 | ; |
368 | ||
0f5d3f63 | 369 | exp : exp '.' field_name COMPLETE |
410a0ff2 SDJ |
370 | { mark_struct_expression (pstate); |
371 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); | |
372 | write_exp_string (pstate, $3); | |
373 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); } | |
65d12d83 TT |
374 | ; |
375 | ||
376 | exp : exp '.' COMPLETE | |
377 | { struct stoken s; | |
410a0ff2 SDJ |
378 | mark_struct_expression (pstate); |
379 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); | |
65d12d83 TT |
380 | s.ptr = ""; |
381 | s.length = 0; | |
410a0ff2 SDJ |
382 | write_exp_string (pstate, s); |
383 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); } | |
65d12d83 TT |
384 | ; |
385 | ||
24955f63 | 386 | exp : exp '.' '~' name |
410a0ff2 SDJ |
387 | { write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); |
388 | write_destructor_name (pstate, $4); | |
389 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); } | |
24955f63 TT |
390 | ; |
391 | ||
392 | exp : exp '.' '~' name COMPLETE | |
410a0ff2 SDJ |
393 | { mark_struct_expression (pstate); |
394 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); | |
395 | write_destructor_name (pstate, $4); | |
396 | write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); } | |
24955f63 TT |
397 | ; |
398 | ||
c906108c SS |
399 | exp : exp '.' qualified_name |
400 | { /* exp.type::name becomes exp.*(&type::name) */ | |
401 | /* Note: this doesn't work if name is a | |
402 | static member! FIXME */ | |
410a0ff2 SDJ |
403 | write_exp_elt_opcode (pstate, UNOP_ADDR); |
404 | write_exp_elt_opcode (pstate, STRUCTOP_MEMBER); } | |
c906108c SS |
405 | ; |
406 | ||
c1af96a0 | 407 | exp : exp DOT_STAR exp |
410a0ff2 | 408 | { write_exp_elt_opcode (pstate, STRUCTOP_MEMBER); } |
c906108c SS |
409 | ; |
410 | ||
411 | exp : exp '[' exp1 ']' | |
410a0ff2 | 412 | { write_exp_elt_opcode (pstate, BINOP_SUBSCRIPT); } |
c906108c SS |
413 | ; |
414 | ||
f2e8016f | 415 | exp : exp OBJC_LBRAC exp1 ']' |
410a0ff2 | 416 | { write_exp_elt_opcode (pstate, BINOP_SUBSCRIPT); } |
f2e8016f TT |
417 | ; |
418 | ||
419 | /* | |
420 | * The rules below parse ObjC message calls of the form: | |
421 | * '[' target selector {':' argument}* ']' | |
422 | */ | |
423 | ||
424 | exp : OBJC_LBRAC TYPENAME | |
425 | { | |
fe978cb0 | 426 | CORE_ADDR theclass; |
f2e8016f | 427 | |
fe978cb0 | 428 | theclass = lookup_objc_class (parse_gdbarch (pstate), |
f2e8016f | 429 | copy_name ($2.stoken)); |
fe978cb0 | 430 | if (theclass == 0) |
f2e8016f TT |
431 | error (_("%s is not an ObjC Class"), |
432 | copy_name ($2.stoken)); | |
410a0ff2 SDJ |
433 | write_exp_elt_opcode (pstate, OP_LONG); |
434 | write_exp_elt_type (pstate, | |
435 | parse_type (pstate)->builtin_int); | |
fe978cb0 | 436 | write_exp_elt_longcst (pstate, (LONGEST) theclass); |
410a0ff2 | 437 | write_exp_elt_opcode (pstate, OP_LONG); |
f2e8016f TT |
438 | start_msglist(); |
439 | } | |
440 | msglist ']' | |
410a0ff2 SDJ |
441 | { write_exp_elt_opcode (pstate, OP_OBJC_MSGCALL); |
442 | end_msglist (pstate); | |
443 | write_exp_elt_opcode (pstate, OP_OBJC_MSGCALL); | |
f2e8016f TT |
444 | } |
445 | ; | |
446 | ||
447 | exp : OBJC_LBRAC CLASSNAME | |
448 | { | |
410a0ff2 SDJ |
449 | write_exp_elt_opcode (pstate, OP_LONG); |
450 | write_exp_elt_type (pstate, | |
451 | parse_type (pstate)->builtin_int); | |
fe978cb0 | 452 | write_exp_elt_longcst (pstate, (LONGEST) $2.theclass); |
410a0ff2 | 453 | write_exp_elt_opcode (pstate, OP_LONG); |
f2e8016f TT |
454 | start_msglist(); |
455 | } | |
456 | msglist ']' | |
410a0ff2 SDJ |
457 | { write_exp_elt_opcode (pstate, OP_OBJC_MSGCALL); |
458 | end_msglist (pstate); | |
459 | write_exp_elt_opcode (pstate, OP_OBJC_MSGCALL); | |
f2e8016f TT |
460 | } |
461 | ; | |
462 | ||
463 | exp : OBJC_LBRAC exp | |
464 | { start_msglist(); } | |
465 | msglist ']' | |
410a0ff2 SDJ |
466 | { write_exp_elt_opcode (pstate, OP_OBJC_MSGCALL); |
467 | end_msglist (pstate); | |
468 | write_exp_elt_opcode (pstate, OP_OBJC_MSGCALL); | |
f2e8016f TT |
469 | } |
470 | ; | |
471 | ||
472 | msglist : name | |
473 | { add_msglist(&$1, 0); } | |
474 | | msgarglist | |
475 | ; | |
476 | ||
477 | msgarglist : msgarg | |
478 | | msgarglist msgarg | |
479 | ; | |
480 | ||
481 | msgarg : name ':' exp | |
482 | { add_msglist(&$1, 1); } | |
483 | | ':' exp /* Unnamed arg. */ | |
484 | { add_msglist(0, 1); } | |
485 | | ',' exp /* Variable number of args. */ | |
486 | { add_msglist(0, 0); } | |
487 | ; | |
488 | ||
4d29c0a8 | 489 | exp : exp '(' |
c906108c SS |
490 | /* This is to save the value of arglist_len |
491 | being accumulated by an outer function call. */ | |
492 | { start_arglist (); } | |
493 | arglist ')' %prec ARROW | |
410a0ff2 SDJ |
494 | { write_exp_elt_opcode (pstate, OP_FUNCALL); |
495 | write_exp_elt_longcst (pstate, | |
496 | (LONGEST) end_arglist ()); | |
497 | write_exp_elt_opcode (pstate, OP_FUNCALL); } | |
c906108c SS |
498 | ; |
499 | ||
858be34c PA |
500 | /* This is here to disambiguate with the production for |
501 | "func()::static_var" further below, which uses | |
502 | function_method_void. */ | |
503 | exp : exp '(' ')' %prec ARROW | |
504 | { start_arglist (); | |
505 | write_exp_elt_opcode (pstate, OP_FUNCALL); | |
506 | write_exp_elt_longcst (pstate, | |
507 | (LONGEST) end_arglist ()); | |
508 | write_exp_elt_opcode (pstate, OP_FUNCALL); } | |
509 | ; | |
510 | ||
511 | ||
941b2081 | 512 | exp : UNKNOWN_CPP_NAME '(' |
7322dca9 SW |
513 | { |
514 | /* This could potentially be a an argument defined | |
515 | lookup function (Koenig). */ | |
410a0ff2 SDJ |
516 | write_exp_elt_opcode (pstate, OP_ADL_FUNC); |
517 | write_exp_elt_block (pstate, | |
518 | expression_context_block); | |
519 | write_exp_elt_sym (pstate, | |
520 | NULL); /* Placeholder. */ | |
521 | write_exp_string (pstate, $1.stoken); | |
522 | write_exp_elt_opcode (pstate, OP_ADL_FUNC); | |
7322dca9 SW |
523 | |
524 | /* This is to save the value of arglist_len | |
525 | being accumulated by an outer function call. */ | |
526 | ||
527 | start_arglist (); | |
528 | } | |
529 | arglist ')' %prec ARROW | |
530 | { | |
410a0ff2 SDJ |
531 | write_exp_elt_opcode (pstate, OP_FUNCALL); |
532 | write_exp_elt_longcst (pstate, | |
533 | (LONGEST) end_arglist ()); | |
534 | write_exp_elt_opcode (pstate, OP_FUNCALL); | |
7322dca9 SW |
535 | } |
536 | ; | |
537 | ||
c906108c SS |
538 | lcurly : '{' |
539 | { start_arglist (); } | |
540 | ; | |
541 | ||
542 | arglist : | |
543 | ; | |
544 | ||
545 | arglist : exp | |
546 | { arglist_len = 1; } | |
547 | ; | |
548 | ||
549 | arglist : arglist ',' exp %prec ABOVE_COMMA | |
550 | { arglist_len++; } | |
551 | ; | |
552 | ||
858be34c | 553 | function_method: exp '(' parameter_typelist ')' const_or_volatile |
072bba3b | 554 | { int i; |
71918a86 TT |
555 | VEC (type_ptr) *type_list = $3; |
556 | struct type *type_elt; | |
557 | LONGEST len = VEC_length (type_ptr, type_list); | |
558 | ||
410a0ff2 | 559 | write_exp_elt_opcode (pstate, TYPE_INSTANCE); |
3693fdb3 PA |
560 | /* Save the const/volatile qualifiers as |
561 | recorded by the const_or_volatile | |
562 | production's actions. */ | |
563 | write_exp_elt_longcst (pstate, | |
564 | follow_type_instance_flags ()); | |
410a0ff2 | 565 | write_exp_elt_longcst (pstate, len); |
71918a86 TT |
566 | for (i = 0; |
567 | VEC_iterate (type_ptr, type_list, i, type_elt); | |
568 | ++i) | |
410a0ff2 SDJ |
569 | write_exp_elt_type (pstate, type_elt); |
570 | write_exp_elt_longcst(pstate, len); | |
571 | write_exp_elt_opcode (pstate, TYPE_INSTANCE); | |
71918a86 | 572 | VEC_free (type_ptr, type_list); |
072bba3b KS |
573 | } |
574 | ; | |
575 | ||
858be34c PA |
576 | function_method_void: exp '(' ')' const_or_volatile |
577 | { write_exp_elt_opcode (pstate, TYPE_INSTANCE); | |
3693fdb3 PA |
578 | /* See above. */ |
579 | write_exp_elt_longcst (pstate, | |
580 | follow_type_instance_flags ()); | |
858be34c PA |
581 | write_exp_elt_longcst (pstate, 0); |
582 | write_exp_elt_longcst (pstate, 0); | |
583 | write_exp_elt_opcode (pstate, TYPE_INSTANCE); | |
584 | } | |
585 | ; | |
586 | ||
587 | exp : function_method | |
588 | ; | |
589 | ||
590 | /* Normally we must interpret "func()" as a function call, instead of | |
591 | a type. The user needs to write func(void) to disambiguate. | |
592 | However, in the "func()::static_var" case, there's no | |
593 | ambiguity. */ | |
594 | function_method_void_or_typelist: function_method | |
595 | | function_method_void | |
596 | ; | |
597 | ||
598 | exp : function_method_void_or_typelist COLONCOLON name | |
599 | { | |
600 | write_exp_elt_opcode (pstate, OP_FUNC_STATIC_VAR); | |
601 | write_exp_string (pstate, $3); | |
602 | write_exp_elt_opcode (pstate, OP_FUNC_STATIC_VAR); | |
603 | } | |
604 | ; | |
605 | ||
c906108c SS |
606 | rcurly : '}' |
607 | { $$ = end_arglist () - 1; } | |
608 | ; | |
609 | exp : lcurly arglist rcurly %prec ARROW | |
410a0ff2 SDJ |
610 | { write_exp_elt_opcode (pstate, OP_ARRAY); |
611 | write_exp_elt_longcst (pstate, (LONGEST) 0); | |
612 | write_exp_elt_longcst (pstate, (LONGEST) $3); | |
613 | write_exp_elt_opcode (pstate, OP_ARRAY); } | |
c906108c SS |
614 | ; |
615 | ||
9eaf6705 | 616 | exp : lcurly type_exp rcurly exp %prec UNARY |
410a0ff2 | 617 | { write_exp_elt_opcode (pstate, UNOP_MEMVAL_TYPE); } |
c906108c SS |
618 | ; |
619 | ||
9eaf6705 | 620 | exp : '(' type_exp ')' exp %prec UNARY |
410a0ff2 | 621 | { write_exp_elt_opcode (pstate, UNOP_CAST_TYPE); } |
c906108c SS |
622 | ; |
623 | ||
624 | exp : '(' exp1 ')' | |
625 | { } | |
626 | ; | |
627 | ||
628 | /* Binary operators in order of decreasing precedence. */ | |
629 | ||
630 | exp : exp '@' exp | |
410a0ff2 | 631 | { write_exp_elt_opcode (pstate, BINOP_REPEAT); } |
c906108c SS |
632 | ; |
633 | ||
634 | exp : exp '*' exp | |
410a0ff2 | 635 | { write_exp_elt_opcode (pstate, BINOP_MUL); } |
c906108c SS |
636 | ; |
637 | ||
638 | exp : exp '/' exp | |
410a0ff2 | 639 | { write_exp_elt_opcode (pstate, BINOP_DIV); } |
c906108c SS |
640 | ; |
641 | ||
642 | exp : exp '%' exp | |
410a0ff2 | 643 | { write_exp_elt_opcode (pstate, BINOP_REM); } |
c906108c SS |
644 | ; |
645 | ||
646 | exp : exp '+' exp | |
410a0ff2 | 647 | { write_exp_elt_opcode (pstate, BINOP_ADD); } |
c906108c SS |
648 | ; |
649 | ||
650 | exp : exp '-' exp | |
410a0ff2 | 651 | { write_exp_elt_opcode (pstate, BINOP_SUB); } |
c906108c SS |
652 | ; |
653 | ||
654 | exp : exp LSH exp | |
410a0ff2 | 655 | { write_exp_elt_opcode (pstate, BINOP_LSH); } |
c906108c SS |
656 | ; |
657 | ||
658 | exp : exp RSH exp | |
410a0ff2 | 659 | { write_exp_elt_opcode (pstate, BINOP_RSH); } |
c906108c SS |
660 | ; |
661 | ||
662 | exp : exp EQUAL exp | |
410a0ff2 | 663 | { write_exp_elt_opcode (pstate, BINOP_EQUAL); } |
c906108c SS |
664 | ; |
665 | ||
666 | exp : exp NOTEQUAL exp | |
410a0ff2 | 667 | { write_exp_elt_opcode (pstate, BINOP_NOTEQUAL); } |
c906108c SS |
668 | ; |
669 | ||
670 | exp : exp LEQ exp | |
410a0ff2 | 671 | { write_exp_elt_opcode (pstate, BINOP_LEQ); } |
c906108c SS |
672 | ; |
673 | ||
674 | exp : exp GEQ exp | |
410a0ff2 | 675 | { write_exp_elt_opcode (pstate, BINOP_GEQ); } |
c906108c SS |
676 | ; |
677 | ||
678 | exp : exp '<' exp | |
410a0ff2 | 679 | { write_exp_elt_opcode (pstate, BINOP_LESS); } |
c906108c SS |
680 | ; |
681 | ||
682 | exp : exp '>' exp | |
410a0ff2 | 683 | { write_exp_elt_opcode (pstate, BINOP_GTR); } |
c906108c SS |
684 | ; |
685 | ||
686 | exp : exp '&' exp | |
410a0ff2 | 687 | { write_exp_elt_opcode (pstate, BINOP_BITWISE_AND); } |
c906108c SS |
688 | ; |
689 | ||
690 | exp : exp '^' exp | |
410a0ff2 | 691 | { write_exp_elt_opcode (pstate, BINOP_BITWISE_XOR); } |
c906108c SS |
692 | ; |
693 | ||
694 | exp : exp '|' exp | |
410a0ff2 | 695 | { write_exp_elt_opcode (pstate, BINOP_BITWISE_IOR); } |
c906108c SS |
696 | ; |
697 | ||
698 | exp : exp ANDAND exp | |
410a0ff2 | 699 | { write_exp_elt_opcode (pstate, BINOP_LOGICAL_AND); } |
c906108c SS |
700 | ; |
701 | ||
702 | exp : exp OROR exp | |
410a0ff2 | 703 | { write_exp_elt_opcode (pstate, BINOP_LOGICAL_OR); } |
c906108c SS |
704 | ; |
705 | ||
706 | exp : exp '?' exp ':' exp %prec '?' | |
410a0ff2 | 707 | { write_exp_elt_opcode (pstate, TERNOP_COND); } |
c906108c | 708 | ; |
4d29c0a8 | 709 | |
c906108c | 710 | exp : exp '=' exp |
410a0ff2 | 711 | { write_exp_elt_opcode (pstate, BINOP_ASSIGN); } |
c906108c SS |
712 | ; |
713 | ||
714 | exp : exp ASSIGN_MODIFY exp | |
410a0ff2 SDJ |
715 | { write_exp_elt_opcode (pstate, BINOP_ASSIGN_MODIFY); |
716 | write_exp_elt_opcode (pstate, $2); | |
717 | write_exp_elt_opcode (pstate, | |
718 | BINOP_ASSIGN_MODIFY); } | |
c906108c SS |
719 | ; |
720 | ||
721 | exp : INT | |
410a0ff2 SDJ |
722 | { write_exp_elt_opcode (pstate, OP_LONG); |
723 | write_exp_elt_type (pstate, $1.type); | |
724 | write_exp_elt_longcst (pstate, (LONGEST) ($1.val)); | |
725 | write_exp_elt_opcode (pstate, OP_LONG); } | |
c906108c SS |
726 | ; |
727 | ||
6c7a06a3 TT |
728 | exp : CHAR |
729 | { | |
730 | struct stoken_vector vec; | |
731 | vec.len = 1; | |
732 | vec.tokens = &$1; | |
410a0ff2 | 733 | write_exp_string_vector (pstate, $1.type, &vec); |
6c7a06a3 TT |
734 | } |
735 | ; | |
736 | ||
c906108c SS |
737 | exp : NAME_OR_INT |
738 | { YYSTYPE val; | |
410a0ff2 SDJ |
739 | parse_number (pstate, $1.stoken.ptr, |
740 | $1.stoken.length, 0, &val); | |
741 | write_exp_elt_opcode (pstate, OP_LONG); | |
742 | write_exp_elt_type (pstate, val.typed_val_int.type); | |
743 | write_exp_elt_longcst (pstate, | |
744 | (LONGEST) val.typed_val_int.val); | |
745 | write_exp_elt_opcode (pstate, OP_LONG); | |
c906108c SS |
746 | } |
747 | ; | |
748 | ||
749 | ||
750 | exp : FLOAT | |
edd079d9 | 751 | { write_exp_elt_opcode (pstate, OP_FLOAT); |
410a0ff2 | 752 | write_exp_elt_type (pstate, $1.type); |
edd079d9 UW |
753 | write_exp_elt_floatcst (pstate, $1.val); |
754 | write_exp_elt_opcode (pstate, OP_FLOAT); } | |
27bc4d80 TJB |
755 | ; |
756 | ||
c906108c SS |
757 | exp : variable |
758 | ; | |
759 | ||
760 | exp : VARIABLE | |
48e32051 | 761 | { |
410a0ff2 | 762 | write_dollar_variable (pstate, $1); |
48e32051 | 763 | } |
c906108c SS |
764 | ; |
765 | ||
f2e8016f TT |
766 | exp : SELECTOR '(' name ')' |
767 | { | |
410a0ff2 SDJ |
768 | write_exp_elt_opcode (pstate, OP_OBJC_SELECTOR); |
769 | write_exp_string (pstate, $3); | |
770 | write_exp_elt_opcode (pstate, OP_OBJC_SELECTOR); } | |
f2e8016f TT |
771 | ; |
772 | ||
c906108c | 773 | exp : SIZEOF '(' type ')' %prec UNARY |
245a5f0b KS |
774 | { struct type *type = $3; |
775 | write_exp_elt_opcode (pstate, OP_LONG); | |
410a0ff2 SDJ |
776 | write_exp_elt_type (pstate, lookup_signed_typename |
777 | (parse_language (pstate), | |
778 | parse_gdbarch (pstate), | |
f4b8a18d | 779 | "int")); |
f168693b | 780 | type = check_typedef (type); |
245a5f0b KS |
781 | |
782 | /* $5.3.3/2 of the C++ Standard (n3290 draft) | |
783 | says of sizeof: "When applied to a reference | |
784 | or a reference type, the result is the size of | |
785 | the referenced type." */ | |
53cc15f5 | 786 | if (TYPE_IS_REFERENCE (type)) |
245a5f0b | 787 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
410a0ff2 | 788 | write_exp_elt_longcst (pstate, |
245a5f0b | 789 | (LONGEST) TYPE_LENGTH (type)); |
410a0ff2 | 790 | write_exp_elt_opcode (pstate, OP_LONG); } |
c906108c SS |
791 | ; |
792 | ||
9eaf6705 | 793 | exp : REINTERPRET_CAST '<' type_exp '>' '(' exp ')' %prec UNARY |
410a0ff2 SDJ |
794 | { write_exp_elt_opcode (pstate, |
795 | UNOP_REINTERPRET_CAST); } | |
4e8f195d TT |
796 | ; |
797 | ||
9eaf6705 | 798 | exp : STATIC_CAST '<' type_exp '>' '(' exp ')' %prec UNARY |
410a0ff2 | 799 | { write_exp_elt_opcode (pstate, UNOP_CAST_TYPE); } |
4e8f195d TT |
800 | ; |
801 | ||
9eaf6705 | 802 | exp : DYNAMIC_CAST '<' type_exp '>' '(' exp ')' %prec UNARY |
410a0ff2 | 803 | { write_exp_elt_opcode (pstate, UNOP_DYNAMIC_CAST); } |
4e8f195d TT |
804 | ; |
805 | ||
9eaf6705 | 806 | exp : CONST_CAST '<' type_exp '>' '(' exp ')' %prec UNARY |
4e8f195d TT |
807 | { /* We could do more error checking here, but |
808 | it doesn't seem worthwhile. */ | |
410a0ff2 | 809 | write_exp_elt_opcode (pstate, UNOP_CAST_TYPE); } |
4e8f195d TT |
810 | ; |
811 | ||
c209f847 TT |
812 | string_exp: |
813 | STRING | |
814 | { | |
815 | /* We copy the string here, and not in the | |
816 | lexer, to guarantee that we do not leak a | |
817 | string. Note that we follow the | |
818 | NUL-termination convention of the | |
819 | lexer. */ | |
6c7a06a3 TT |
820 | struct typed_stoken *vec = XNEW (struct typed_stoken); |
821 | $$.len = 1; | |
822 | $$.tokens = vec; | |
823 | ||
824 | vec->type = $1.type; | |
825 | vec->length = $1.length; | |
224c3ddb | 826 | vec->ptr = (char *) malloc ($1.length + 1); |
6c7a06a3 | 827 | memcpy (vec->ptr, $1.ptr, $1.length + 1); |
c209f847 TT |
828 | } |
829 | ||
830 | | string_exp STRING | |
831 | { | |
832 | /* Note that we NUL-terminate here, but just | |
833 | for convenience. */ | |
6c7a06a3 TT |
834 | char *p; |
835 | ++$$.len; | |
224c3ddb SM |
836 | $$.tokens = XRESIZEVEC (struct typed_stoken, |
837 | $$.tokens, $$.len); | |
6c7a06a3 | 838 | |
224c3ddb | 839 | p = (char *) malloc ($2.length + 1); |
6c7a06a3 TT |
840 | memcpy (p, $2.ptr, $2.length + 1); |
841 | ||
842 | $$.tokens[$$.len - 1].type = $2.type; | |
843 | $$.tokens[$$.len - 1].length = $2.length; | |
844 | $$.tokens[$$.len - 1].ptr = p; | |
c209f847 TT |
845 | } |
846 | ; | |
847 | ||
848 | exp : string_exp | |
6c7a06a3 TT |
849 | { |
850 | int i; | |
0c801b96 | 851 | c_string_type type = C_STRING; |
6c7a06a3 TT |
852 | |
853 | for (i = 0; i < $1.len; ++i) | |
c906108c | 854 | { |
6c7a06a3 TT |
855 | switch ($1.tokens[i].type) |
856 | { | |
857 | case C_STRING: | |
858 | break; | |
859 | case C_WIDE_STRING: | |
860 | case C_STRING_16: | |
861 | case C_STRING_32: | |
862 | if (type != C_STRING | |
863 | && type != $1.tokens[i].type) | |
001083c6 | 864 | error (_("Undefined string concatenation.")); |
0c801b96 | 865 | type = (enum c_string_type_values) $1.tokens[i].type; |
6c7a06a3 TT |
866 | break; |
867 | default: | |
868 | /* internal error */ | |
869 | internal_error (__FILE__, __LINE__, | |
870 | "unrecognized type in string concatenation"); | |
871 | } | |
c906108c | 872 | } |
6c7a06a3 | 873 | |
410a0ff2 | 874 | write_exp_string_vector (pstate, type, &$1); |
6c7a06a3 TT |
875 | for (i = 0; i < $1.len; ++i) |
876 | free ($1.tokens[i].ptr); | |
877 | free ($1.tokens); | |
c209f847 | 878 | } |
c906108c SS |
879 | ; |
880 | ||
f2e8016f TT |
881 | exp : NSSTRING /* ObjC NextStep NSString constant |
882 | * of the form '@' '"' string '"'. | |
883 | */ | |
410a0ff2 SDJ |
884 | { write_exp_elt_opcode (pstate, OP_OBJC_NSSTRING); |
885 | write_exp_string (pstate, $1); | |
886 | write_exp_elt_opcode (pstate, OP_OBJC_NSSTRING); } | |
f2e8016f TT |
887 | ; |
888 | ||
c906108c | 889 | /* C++. */ |
4d29c0a8 | 890 | exp : TRUEKEYWORD |
410a0ff2 SDJ |
891 | { write_exp_elt_opcode (pstate, OP_LONG); |
892 | write_exp_elt_type (pstate, | |
893 | parse_type (pstate)->builtin_bool); | |
894 | write_exp_elt_longcst (pstate, (LONGEST) 1); | |
895 | write_exp_elt_opcode (pstate, OP_LONG); } | |
c906108c SS |
896 | ; |
897 | ||
4d29c0a8 | 898 | exp : FALSEKEYWORD |
410a0ff2 SDJ |
899 | { write_exp_elt_opcode (pstate, OP_LONG); |
900 | write_exp_elt_type (pstate, | |
901 | parse_type (pstate)->builtin_bool); | |
902 | write_exp_elt_longcst (pstate, (LONGEST) 0); | |
903 | write_exp_elt_opcode (pstate, OP_LONG); } | |
c906108c SS |
904 | ; |
905 | ||
906 | /* end of C++. */ | |
907 | ||
908 | block : BLOCKNAME | |
909 | { | |
d12307c1 PMR |
910 | if ($1.sym.symbol) |
911 | $$ = SYMBOL_BLOCK_VALUE ($1.sym.symbol); | |
c906108c | 912 | else |
001083c6 | 913 | error (_("No file or function \"%s\"."), |
c906108c SS |
914 | copy_name ($1.stoken)); |
915 | } | |
916 | | FILENAME | |
917 | { | |
918 | $$ = $1; | |
919 | } | |
920 | ; | |
921 | ||
922 | block : block COLONCOLON name | |
923 | { struct symbol *tem | |
924 | = lookup_symbol (copy_name ($3), $1, | |
d12307c1 PMR |
925 | VAR_DOMAIN, NULL).symbol; |
926 | ||
c906108c | 927 | if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK) |
001083c6 | 928 | error (_("No function \"%s\" in specified context."), |
c906108c SS |
929 | copy_name ($3)); |
930 | $$ = SYMBOL_BLOCK_VALUE (tem); } | |
931 | ; | |
932 | ||
941b2081 | 933 | variable: name_not_typename ENTRY |
d12307c1 | 934 | { struct symbol *sym = $1.sym.symbol; |
36b11add JK |
935 | |
936 | if (sym == NULL || !SYMBOL_IS_ARGUMENT (sym) | |
937 | || !symbol_read_needs_frame (sym)) | |
938 | error (_("@entry can be used only for function " | |
939 | "parameters, not for \"%s\""), | |
940 | copy_name ($1.stoken)); | |
941 | ||
410a0ff2 SDJ |
942 | write_exp_elt_opcode (pstate, OP_VAR_ENTRY_VALUE); |
943 | write_exp_elt_sym (pstate, sym); | |
944 | write_exp_elt_opcode (pstate, OP_VAR_ENTRY_VALUE); | |
36b11add JK |
945 | } |
946 | ; | |
947 | ||
c906108c | 948 | variable: block COLONCOLON name |
d12307c1 PMR |
949 | { struct block_symbol sym |
950 | = lookup_symbol (copy_name ($3), $1, | |
951 | VAR_DOMAIN, NULL); | |
952 | ||
953 | if (sym.symbol == 0) | |
001083c6 | 954 | error (_("No symbol \"%s\" in specified context."), |
c906108c | 955 | copy_name ($3)); |
d12307c1 | 956 | if (symbol_read_needs_frame (sym.symbol)) |
aee1fcdf AB |
957 | |
958 | innermost_block.update (sym); | |
c906108c | 959 | |
410a0ff2 | 960 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); |
d12307c1 PMR |
961 | write_exp_elt_block (pstate, sym.block); |
962 | write_exp_elt_sym (pstate, sym.symbol); | |
410a0ff2 | 963 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); } |
c906108c SS |
964 | ; |
965 | ||
48e32051 | 966 | qualified_name: TYPENAME COLONCOLON name |
c906108c | 967 | { |
48e32051 | 968 | struct type *type = $1.type; |
f168693b | 969 | type = check_typedef (type); |
3d567982 | 970 | if (!type_aggregate_p (type)) |
001083c6 | 971 | error (_("`%s' is not defined as an aggregate type."), |
7fc75ca7 | 972 | TYPE_SAFE_NAME (type)); |
c906108c | 973 | |
410a0ff2 SDJ |
974 | write_exp_elt_opcode (pstate, OP_SCOPE); |
975 | write_exp_elt_type (pstate, type); | |
976 | write_exp_string (pstate, $3); | |
977 | write_exp_elt_opcode (pstate, OP_SCOPE); | |
c906108c | 978 | } |
48e32051 | 979 | | TYPENAME COLONCOLON '~' name |
c906108c | 980 | { |
48e32051 | 981 | struct type *type = $1.type; |
c906108c | 982 | struct stoken tmp_token; |
d7561cbb KS |
983 | char *buf; |
984 | ||
f168693b | 985 | type = check_typedef (type); |
3d567982 | 986 | if (!type_aggregate_p (type)) |
001083c6 | 987 | error (_("`%s' is not defined as an aggregate type."), |
7fc75ca7 | 988 | TYPE_SAFE_NAME (type)); |
224c3ddb | 989 | buf = (char *) alloca ($4.length + 2); |
d7561cbb | 990 | tmp_token.ptr = buf; |
c906108c | 991 | tmp_token.length = $4.length + 1; |
d7561cbb KS |
992 | buf[0] = '~'; |
993 | memcpy (buf+1, $4.ptr, $4.length); | |
994 | buf[tmp_token.length] = 0; | |
c906108c SS |
995 | |
996 | /* Check for valid destructor name. */ | |
d8228535 | 997 | destructor_name_p (tmp_token.ptr, $1.type); |
410a0ff2 SDJ |
998 | write_exp_elt_opcode (pstate, OP_SCOPE); |
999 | write_exp_elt_type (pstate, type); | |
1000 | write_exp_string (pstate, tmp_token); | |
1001 | write_exp_elt_opcode (pstate, OP_SCOPE); | |
c906108c | 1002 | } |
48e32051 TT |
1003 | | TYPENAME COLONCOLON name COLONCOLON name |
1004 | { | |
1005 | char *copy = copy_name ($3); | |
1006 | error (_("No type \"%s\" within class " | |
1007 | "or namespace \"%s\"."), | |
7fc75ca7 | 1008 | copy, TYPE_SAFE_NAME ($1.type)); |
48e32051 | 1009 | } |
c906108c SS |
1010 | ; |
1011 | ||
1012 | variable: qualified_name | |
48e32051 | 1013 | | COLONCOLON name_not_typename |
c906108c | 1014 | { |
48e32051 | 1015 | char *name = copy_name ($2.stoken); |
c906108c | 1016 | struct symbol *sym; |
7c7b6655 | 1017 | struct bound_minimal_symbol msymbol; |
c906108c | 1018 | |
d12307c1 PMR |
1019 | sym |
1020 | = lookup_symbol (name, (const struct block *) NULL, | |
1021 | VAR_DOMAIN, NULL).symbol; | |
c906108c SS |
1022 | if (sym) |
1023 | { | |
410a0ff2 SDJ |
1024 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); |
1025 | write_exp_elt_block (pstate, NULL); | |
1026 | write_exp_elt_sym (pstate, sym); | |
1027 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); | |
c906108c SS |
1028 | break; |
1029 | } | |
1030 | ||
7c7b6655 TT |
1031 | msymbol = lookup_bound_minimal_symbol (name); |
1032 | if (msymbol.minsym != NULL) | |
410a0ff2 | 1033 | write_exp_msymbol (pstate, msymbol); |
c841afd5 | 1034 | else if (!have_full_symbols () && !have_partial_symbols ()) |
001083c6 | 1035 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 1036 | else |
001083c6 | 1037 | error (_("No symbol \"%s\" in current context."), name); |
c906108c SS |
1038 | } |
1039 | ; | |
1040 | ||
1041 | variable: name_not_typename | |
d12307c1 | 1042 | { struct block_symbol sym = $1.sym; |
c906108c | 1043 | |
d12307c1 | 1044 | if (sym.symbol) |
c906108c | 1045 | { |
d12307c1 | 1046 | if (symbol_read_needs_frame (sym.symbol)) |
aee1fcdf | 1047 | innermost_block.update (sym); |
c906108c | 1048 | |
ca31ab1d PA |
1049 | /* If we found a function, see if it's |
1050 | an ifunc resolver that has the same | |
1051 | address as the ifunc symbol itself. | |
1052 | If so, prefer the ifunc symbol. */ | |
1053 | ||
1054 | bound_minimal_symbol resolver | |
1055 | = find_gnu_ifunc (sym.symbol); | |
1056 | if (resolver.minsym != NULL) | |
1057 | write_exp_msymbol (pstate, resolver); | |
1058 | else | |
1059 | { | |
1060 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); | |
1061 | write_exp_elt_block (pstate, sym.block); | |
1062 | write_exp_elt_sym (pstate, sym.symbol); | |
1063 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); | |
1064 | } | |
c906108c SS |
1065 | } |
1066 | else if ($1.is_a_field_of_this) | |
1067 | { | |
1068 | /* C++: it hangs off of `this'. Must | |
1069 | not inadvertently convert from a method call | |
1070 | to data ref. */ | |
aee1fcdf | 1071 | innermost_block.update (sym); |
410a0ff2 SDJ |
1072 | write_exp_elt_opcode (pstate, OP_THIS); |
1073 | write_exp_elt_opcode (pstate, OP_THIS); | |
1074 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); | |
1075 | write_exp_string (pstate, $1.stoken); | |
1076 | write_exp_elt_opcode (pstate, STRUCTOP_PTR); | |
c906108c SS |
1077 | } |
1078 | else | |
1079 | { | |
710122da | 1080 | char *arg = copy_name ($1.stoken); |
c906108c | 1081 | |
bf223d3e PA |
1082 | bound_minimal_symbol msymbol |
1083 | = lookup_bound_minimal_symbol (arg); | |
1084 | if (msymbol.minsym == NULL) | |
1085 | { | |
1086 | if (!have_full_symbols () && !have_partial_symbols ()) | |
1087 | error (_("No symbol table is loaded. Use the \"file\" command.")); | |
1088 | else | |
1089 | error (_("No symbol \"%s\" in current context."), | |
1090 | copy_name ($1.stoken)); | |
1091 | } | |
1092 | ||
1093 | /* This minsym might be an alias for | |
1094 | another function. See if we can find | |
1095 | the debug symbol for the target, and | |
1096 | if so, use it instead, since it has | |
1097 | return type / prototype info. This | |
1098 | is important for example for "p | |
1099 | *__errno_location()". */ | |
1100 | symbol *alias_target | |
f50776aa PA |
1101 | = ((msymbol.minsym->type != mst_text_gnu_ifunc |
1102 | && msymbol.minsym->type != mst_data_gnu_ifunc) | |
a376e11d PA |
1103 | ? find_function_alias_target (msymbol) |
1104 | : NULL); | |
bf223d3e PA |
1105 | if (alias_target != NULL) |
1106 | { | |
1107 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); | |
1108 | write_exp_elt_block | |
1109 | (pstate, SYMBOL_BLOCK_VALUE (alias_target)); | |
1110 | write_exp_elt_sym (pstate, alias_target); | |
1111 | write_exp_elt_opcode (pstate, OP_VAR_VALUE); | |
1112 | } | |
c906108c | 1113 | else |
bf223d3e | 1114 | write_exp_msymbol (pstate, msymbol); |
c906108c SS |
1115 | } |
1116 | } | |
1117 | ; | |
1118 | ||
47663de5 | 1119 | space_identifier : '@' NAME |
410a0ff2 | 1120 | { insert_type_address_space (pstate, copy_name ($2.stoken)); } |
47663de5 | 1121 | ; |
c906108c | 1122 | |
47663de5 MS |
1123 | const_or_volatile: const_or_volatile_noopt |
1124 | | | |
c906108c | 1125 | ; |
47663de5 MS |
1126 | |
1127 | cv_with_space_id : const_or_volatile space_identifier const_or_volatile | |
56e2d25a | 1128 | ; |
47663de5 MS |
1129 | |
1130 | const_or_volatile_or_space_identifier_noopt: cv_with_space_id | |
4d29c0a8 | 1131 | | const_or_volatile_noopt |
56e2d25a | 1132 | ; |
47663de5 | 1133 | |
4d29c0a8 | 1134 | const_or_volatile_or_space_identifier: |
47663de5 MS |
1135 | const_or_volatile_or_space_identifier_noopt |
1136 | | | |
56e2d25a | 1137 | ; |
47663de5 | 1138 | |
95c391b6 TT |
1139 | ptr_operator: |
1140 | ptr_operator '*' | |
1141 | { insert_type (tp_pointer); } | |
1142 | const_or_volatile_or_space_identifier | |
4d29c0a8 | 1143 | | '*' |
95c391b6 TT |
1144 | { insert_type (tp_pointer); } |
1145 | const_or_volatile_or_space_identifier | |
c906108c | 1146 | | '&' |
16d01384 | 1147 | { insert_type (tp_reference); } |
95c391b6 | 1148 | | '&' ptr_operator |
16d01384 | 1149 | { insert_type (tp_reference); } |
53cc15f5 AV |
1150 | | ANDAND |
1151 | { insert_type (tp_rvalue_reference); } | |
1152 | | ANDAND ptr_operator | |
1153 | { insert_type (tp_rvalue_reference); } | |
95c391b6 TT |
1154 | ; |
1155 | ||
fcde5961 TT |
1156 | ptr_operator_ts: ptr_operator |
1157 | { | |
1158 | $$ = get_type_stack (); | |
1159 | /* This cleanup is eventually run by | |
1160 | c_parse. */ | |
1161 | make_cleanup (type_stack_cleanup, $$); | |
1162 | } | |
1163 | ; | |
1164 | ||
1165 | abs_decl: ptr_operator_ts direct_abs_decl | |
1166 | { $$ = append_type_stack ($2, $1); } | |
4d29c0a8 | 1167 | | ptr_operator_ts |
c906108c SS |
1168 | | direct_abs_decl |
1169 | ; | |
1170 | ||
1171 | direct_abs_decl: '(' abs_decl ')' | |
fcde5961 | 1172 | { $$ = $2; } |
c906108c SS |
1173 | | direct_abs_decl array_mod |
1174 | { | |
fcde5961 | 1175 | push_type_stack ($1); |
c906108c SS |
1176 | push_type_int ($2); |
1177 | push_type (tp_array); | |
fcde5961 | 1178 | $$ = get_type_stack (); |
c906108c SS |
1179 | } |
1180 | | array_mod | |
1181 | { | |
1182 | push_type_int ($1); | |
1183 | push_type (tp_array); | |
fcde5961 | 1184 | $$ = get_type_stack (); |
c906108c SS |
1185 | } |
1186 | ||
1187 | | direct_abs_decl func_mod | |
fcde5961 TT |
1188 | { |
1189 | push_type_stack ($1); | |
71918a86 | 1190 | push_typelist ($2); |
fcde5961 TT |
1191 | $$ = get_type_stack (); |
1192 | } | |
c906108c | 1193 | | func_mod |
fcde5961 | 1194 | { |
71918a86 | 1195 | push_typelist ($1); |
fcde5961 TT |
1196 | $$ = get_type_stack (); |
1197 | } | |
c906108c SS |
1198 | ; |
1199 | ||
1200 | array_mod: '[' ']' | |
1201 | { $$ = -1; } | |
f2e8016f TT |
1202 | | OBJC_LBRAC ']' |
1203 | { $$ = -1; } | |
c906108c SS |
1204 | | '[' INT ']' |
1205 | { $$ = $2.val; } | |
f2e8016f TT |
1206 | | OBJC_LBRAC INT ']' |
1207 | { $$ = $2.val; } | |
c906108c SS |
1208 | ; |
1209 | ||
1210 | func_mod: '(' ')' | |
71918a86 | 1211 | { $$ = NULL; } |
a6fb9c08 | 1212 | | '(' parameter_typelist ')' |
71918a86 | 1213 | { $$ = $2; } |
c906108c SS |
1214 | ; |
1215 | ||
a22229c4 | 1216 | /* We used to try to recognize pointer to member types here, but |
c906108c SS |
1217 | that didn't work (shift/reduce conflicts meant that these rules never |
1218 | got executed). The problem is that | |
1219 | int (foo::bar::baz::bizzle) | |
1220 | is a function type but | |
1221 | int (foo::bar::baz::bizzle::*) | |
1222 | is a pointer to member type. Stroustrup loses again! */ | |
1223 | ||
1224 | type : ptype | |
c906108c SS |
1225 | ; |
1226 | ||
b6c95c0c AB |
1227 | /* Implements (approximately): (type-qualifier)* type-specifier. |
1228 | ||
1229 | When type-specifier is only ever a single word, like 'float' then these | |
1230 | arrive as pre-built TYPENAME tokens thanks to the classify_name | |
1231 | function. However, when a type-specifier can contain multiple words, | |
1232 | for example 'double' can appear as just 'double' or 'long double', and | |
1233 | similarly 'long' can appear as just 'long' or in 'long double', then | |
1234 | these type-specifiers are parsed into their own tokens in the function | |
1235 | lex_one_token and the ident_tokens array. These separate tokens are all | |
1236 | recognised here. */ | |
1237 | typebase | |
c906108c SS |
1238 | : TYPENAME |
1239 | { $$ = $1.type; } | |
1240 | | INT_KEYWORD | |
410a0ff2 SDJ |
1241 | { $$ = lookup_signed_typename (parse_language (pstate), |
1242 | parse_gdbarch (pstate), | |
f4b8a18d | 1243 | "int"); } |
c906108c | 1244 | | LONG |
410a0ff2 SDJ |
1245 | { $$ = lookup_signed_typename (parse_language (pstate), |
1246 | parse_gdbarch (pstate), | |
f4b8a18d | 1247 | "long"); } |
c906108c | 1248 | | SHORT |
410a0ff2 SDJ |
1249 | { $$ = lookup_signed_typename (parse_language (pstate), |
1250 | parse_gdbarch (pstate), | |
f4b8a18d | 1251 | "short"); } |
c906108c | 1252 | | LONG INT_KEYWORD |
410a0ff2 SDJ |
1253 | { $$ = lookup_signed_typename (parse_language (pstate), |
1254 | parse_gdbarch (pstate), | |
f4b8a18d | 1255 | "long"); } |
b2c4da81 | 1256 | | LONG SIGNED_KEYWORD INT_KEYWORD |
410a0ff2 SDJ |
1257 | { $$ = lookup_signed_typename (parse_language (pstate), |
1258 | parse_gdbarch (pstate), | |
f4b8a18d | 1259 | "long"); } |
b2c4da81 | 1260 | | LONG SIGNED_KEYWORD |
410a0ff2 SDJ |
1261 | { $$ = lookup_signed_typename (parse_language (pstate), |
1262 | parse_gdbarch (pstate), | |
f4b8a18d | 1263 | "long"); } |
b2c4da81 | 1264 | | SIGNED_KEYWORD LONG INT_KEYWORD |
410a0ff2 SDJ |
1265 | { $$ = lookup_signed_typename (parse_language (pstate), |
1266 | parse_gdbarch (pstate), | |
f4b8a18d | 1267 | "long"); } |
c906108c | 1268 | | UNSIGNED LONG INT_KEYWORD |
410a0ff2 SDJ |
1269 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1270 | parse_gdbarch (pstate), | |
f4b8a18d | 1271 | "long"); } |
b2c4da81 | 1272 | | LONG UNSIGNED INT_KEYWORD |
410a0ff2 SDJ |
1273 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1274 | parse_gdbarch (pstate), | |
f4b8a18d | 1275 | "long"); } |
b2c4da81 | 1276 | | LONG UNSIGNED |
410a0ff2 SDJ |
1277 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1278 | parse_gdbarch (pstate), | |
f4b8a18d | 1279 | "long"); } |
c906108c | 1280 | | LONG LONG |
410a0ff2 SDJ |
1281 | { $$ = lookup_signed_typename (parse_language (pstate), |
1282 | parse_gdbarch (pstate), | |
f4b8a18d | 1283 | "long long"); } |
c906108c | 1284 | | LONG LONG INT_KEYWORD |
410a0ff2 SDJ |
1285 | { $$ = lookup_signed_typename (parse_language (pstate), |
1286 | parse_gdbarch (pstate), | |
f4b8a18d | 1287 | "long long"); } |
b2c4da81 | 1288 | | LONG LONG SIGNED_KEYWORD INT_KEYWORD |
410a0ff2 SDJ |
1289 | { $$ = lookup_signed_typename (parse_language (pstate), |
1290 | parse_gdbarch (pstate), | |
f4b8a18d | 1291 | "long long"); } |
b2c4da81 | 1292 | | LONG LONG SIGNED_KEYWORD |
410a0ff2 SDJ |
1293 | { $$ = lookup_signed_typename (parse_language (pstate), |
1294 | parse_gdbarch (pstate), | |
f4b8a18d | 1295 | "long long"); } |
b2c4da81 | 1296 | | SIGNED_KEYWORD LONG LONG |
410a0ff2 SDJ |
1297 | { $$ = lookup_signed_typename (parse_language (pstate), |
1298 | parse_gdbarch (pstate), | |
f4b8a18d | 1299 | "long long"); } |
55baeb84 | 1300 | | SIGNED_KEYWORD LONG LONG INT_KEYWORD |
410a0ff2 SDJ |
1301 | { $$ = lookup_signed_typename (parse_language (pstate), |
1302 | parse_gdbarch (pstate), | |
f4b8a18d | 1303 | "long long"); } |
c906108c | 1304 | | UNSIGNED LONG LONG |
410a0ff2 SDJ |
1305 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1306 | parse_gdbarch (pstate), | |
f4b8a18d | 1307 | "long long"); } |
c906108c | 1308 | | UNSIGNED LONG LONG INT_KEYWORD |
410a0ff2 SDJ |
1309 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1310 | parse_gdbarch (pstate), | |
f4b8a18d | 1311 | "long long"); } |
b2c4da81 | 1312 | | LONG LONG UNSIGNED |
410a0ff2 SDJ |
1313 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1314 | parse_gdbarch (pstate), | |
f4b8a18d | 1315 | "long long"); } |
b2c4da81 | 1316 | | LONG LONG UNSIGNED INT_KEYWORD |
410a0ff2 SDJ |
1317 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1318 | parse_gdbarch (pstate), | |
f4b8a18d | 1319 | "long long"); } |
c906108c | 1320 | | SHORT INT_KEYWORD |
410a0ff2 SDJ |
1321 | { $$ = lookup_signed_typename (parse_language (pstate), |
1322 | parse_gdbarch (pstate), | |
f4b8a18d | 1323 | "short"); } |
b2c4da81 | 1324 | | SHORT SIGNED_KEYWORD INT_KEYWORD |
410a0ff2 SDJ |
1325 | { $$ = lookup_signed_typename (parse_language (pstate), |
1326 | parse_gdbarch (pstate), | |
f4b8a18d | 1327 | "short"); } |
b2c4da81 | 1328 | | SHORT SIGNED_KEYWORD |
410a0ff2 SDJ |
1329 | { $$ = lookup_signed_typename (parse_language (pstate), |
1330 | parse_gdbarch (pstate), | |
f4b8a18d | 1331 | "short"); } |
c906108c | 1332 | | UNSIGNED SHORT INT_KEYWORD |
410a0ff2 SDJ |
1333 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1334 | parse_gdbarch (pstate), | |
f4b8a18d | 1335 | "short"); } |
4d29c0a8 | 1336 | | SHORT UNSIGNED |
410a0ff2 SDJ |
1337 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1338 | parse_gdbarch (pstate), | |
f4b8a18d | 1339 | "short"); } |
b2c4da81 | 1340 | | SHORT UNSIGNED INT_KEYWORD |
410a0ff2 SDJ |
1341 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1342 | parse_gdbarch (pstate), | |
f4b8a18d | 1343 | "short"); } |
c906108c | 1344 | | DOUBLE_KEYWORD |
410a0ff2 SDJ |
1345 | { $$ = lookup_typename (parse_language (pstate), |
1346 | parse_gdbarch (pstate), | |
1347 | "double", | |
1348 | (struct block *) NULL, | |
f4b8a18d | 1349 | 0); } |
c906108c | 1350 | | LONG DOUBLE_KEYWORD |
410a0ff2 SDJ |
1351 | { $$ = lookup_typename (parse_language (pstate), |
1352 | parse_gdbarch (pstate), | |
f4b8a18d | 1353 | "long double", |
410a0ff2 SDJ |
1354 | (struct block *) NULL, |
1355 | 0); } | |
c906108c SS |
1356 | | STRUCT name |
1357 | { $$ = lookup_struct (copy_name ($2), | |
1358 | expression_context_block); } | |
2f68a895 TT |
1359 | | STRUCT COMPLETE |
1360 | { | |
1361 | mark_completion_tag (TYPE_CODE_STRUCT, "", 0); | |
1362 | $$ = NULL; | |
1363 | } | |
1364 | | STRUCT name COMPLETE | |
1365 | { | |
1366 | mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr, | |
1367 | $2.length); | |
1368 | $$ = NULL; | |
1369 | } | |
c906108c SS |
1370 | | CLASS name |
1371 | { $$ = lookup_struct (copy_name ($2), | |
1372 | expression_context_block); } | |
2f68a895 TT |
1373 | | CLASS COMPLETE |
1374 | { | |
4753d33b | 1375 | mark_completion_tag (TYPE_CODE_STRUCT, "", 0); |
2f68a895 TT |
1376 | $$ = NULL; |
1377 | } | |
1378 | | CLASS name COMPLETE | |
1379 | { | |
4753d33b | 1380 | mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr, |
2f68a895 TT |
1381 | $2.length); |
1382 | $$ = NULL; | |
1383 | } | |
c906108c SS |
1384 | | UNION name |
1385 | { $$ = lookup_union (copy_name ($2), | |
1386 | expression_context_block); } | |
2f68a895 TT |
1387 | | UNION COMPLETE |
1388 | { | |
1389 | mark_completion_tag (TYPE_CODE_UNION, "", 0); | |
1390 | $$ = NULL; | |
1391 | } | |
1392 | | UNION name COMPLETE | |
1393 | { | |
1394 | mark_completion_tag (TYPE_CODE_UNION, $2.ptr, | |
1395 | $2.length); | |
1396 | $$ = NULL; | |
1397 | } | |
c906108c SS |
1398 | | ENUM name |
1399 | { $$ = lookup_enum (copy_name ($2), | |
1400 | expression_context_block); } | |
2f68a895 TT |
1401 | | ENUM COMPLETE |
1402 | { | |
1403 | mark_completion_tag (TYPE_CODE_ENUM, "", 0); | |
1404 | $$ = NULL; | |
1405 | } | |
1406 | | ENUM name COMPLETE | |
1407 | { | |
1408 | mark_completion_tag (TYPE_CODE_ENUM, $2.ptr, | |
1409 | $2.length); | |
1410 | $$ = NULL; | |
1411 | } | |
fe978cb0 | 1412 | | UNSIGNED type_name |
410a0ff2 SDJ |
1413 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1414 | parse_gdbarch (pstate), | |
e6c014f2 | 1415 | TYPE_NAME($2.type)); } |
c906108c | 1416 | | UNSIGNED |
410a0ff2 SDJ |
1417 | { $$ = lookup_unsigned_typename (parse_language (pstate), |
1418 | parse_gdbarch (pstate), | |
f4b8a18d | 1419 | "int"); } |
fe978cb0 | 1420 | | SIGNED_KEYWORD type_name |
410a0ff2 SDJ |
1421 | { $$ = lookup_signed_typename (parse_language (pstate), |
1422 | parse_gdbarch (pstate), | |
e6c014f2 | 1423 | TYPE_NAME($2.type)); } |
c906108c | 1424 | | SIGNED_KEYWORD |
410a0ff2 SDJ |
1425 | { $$ = lookup_signed_typename (parse_language (pstate), |
1426 | parse_gdbarch (pstate), | |
f4b8a18d | 1427 | "int"); } |
c906108c SS |
1428 | /* It appears that this rule for templates is never |
1429 | reduced; template recognition happens by lookahead | |
4d29c0a8 | 1430 | in the token processing code in yylex. */ |
c906108c SS |
1431 | | TEMPLATE name '<' type '>' |
1432 | { $$ = lookup_template_type(copy_name($2), $4, | |
1433 | expression_context_block); | |
1434 | } | |
4d29c0a8 | 1435 | | const_or_volatile_or_space_identifier_noopt typebase |
47663de5 | 1436 | { $$ = follow_types ($2); } |
4d29c0a8 | 1437 | | typebase const_or_volatile_or_space_identifier_noopt |
47663de5 | 1438 | { $$ = follow_types ($1); } |
c906108c SS |
1439 | ; |
1440 | ||
fe978cb0 | 1441 | type_name: TYPENAME |
c906108c SS |
1442 | | INT_KEYWORD |
1443 | { | |
1444 | $$.stoken.ptr = "int"; | |
1445 | $$.stoken.length = 3; | |
410a0ff2 SDJ |
1446 | $$.type = lookup_signed_typename (parse_language (pstate), |
1447 | parse_gdbarch (pstate), | |
f4b8a18d | 1448 | "int"); |
c906108c SS |
1449 | } |
1450 | | LONG | |
1451 | { | |
1452 | $$.stoken.ptr = "long"; | |
1453 | $$.stoken.length = 4; | |
410a0ff2 SDJ |
1454 | $$.type = lookup_signed_typename (parse_language (pstate), |
1455 | parse_gdbarch (pstate), | |
f4b8a18d | 1456 | "long"); |
c906108c SS |
1457 | } |
1458 | | SHORT | |
1459 | { | |
1460 | $$.stoken.ptr = "short"; | |
1461 | $$.stoken.length = 5; | |
410a0ff2 SDJ |
1462 | $$.type = lookup_signed_typename (parse_language (pstate), |
1463 | parse_gdbarch (pstate), | |
f4b8a18d | 1464 | "short"); |
c906108c SS |
1465 | } |
1466 | ; | |
1467 | ||
a6fb9c08 TT |
1468 | parameter_typelist: |
1469 | nonempty_typelist | |
e314d629 | 1470 | { check_parameter_typelist ($1); } |
a6fb9c08 TT |
1471 | | nonempty_typelist ',' DOTDOTDOT |
1472 | { | |
1473 | VEC_safe_push (type_ptr, $1, NULL); | |
e314d629 | 1474 | check_parameter_typelist ($1); |
a6fb9c08 TT |
1475 | $$ = $1; |
1476 | } | |
1477 | ; | |
1478 | ||
c906108c SS |
1479 | nonempty_typelist |
1480 | : type | |
71918a86 TT |
1481 | { |
1482 | VEC (type_ptr) *typelist = NULL; | |
1483 | VEC_safe_push (type_ptr, typelist, $1); | |
1484 | $$ = typelist; | |
c906108c SS |
1485 | } |
1486 | | nonempty_typelist ',' type | |
71918a86 TT |
1487 | { |
1488 | VEC_safe_push (type_ptr, $1, $3); | |
1489 | $$ = $1; | |
c906108c SS |
1490 | } |
1491 | ; | |
1492 | ||
47663de5 | 1493 | ptype : typebase |
95c391b6 | 1494 | | ptype abs_decl |
fcde5961 TT |
1495 | { |
1496 | push_type_stack ($2); | |
1497 | $$ = follow_types ($1); | |
1498 | } | |
47663de5 MS |
1499 | ; |
1500 | ||
95c391b6 TT |
1501 | conversion_type_id: typebase conversion_declarator |
1502 | { $$ = follow_types ($1); } | |
1503 | ; | |
1504 | ||
1505 | conversion_declarator: /* Nothing. */ | |
1506 | | ptr_operator conversion_declarator | |
1507 | ; | |
1508 | ||
47663de5 MS |
1509 | const_and_volatile: CONST_KEYWORD VOLATILE_KEYWORD |
1510 | | VOLATILE_KEYWORD CONST_KEYWORD | |
1511 | ; | |
1512 | ||
4d29c0a8 | 1513 | const_or_volatile_noopt: const_and_volatile |
95c391b6 | 1514 | { insert_type (tp_const); |
4d29c0a8 | 1515 | insert_type (tp_volatile); |
47663de5 MS |
1516 | } |
1517 | | CONST_KEYWORD | |
95c391b6 | 1518 | { insert_type (tp_const); } |
47663de5 | 1519 | | VOLATILE_KEYWORD |
95c391b6 | 1520 | { insert_type (tp_volatile); } |
47663de5 MS |
1521 | ; |
1522 | ||
fe978cb0 | 1523 | oper: OPERATOR NEW |
66c53f2b KS |
1524 | { $$ = operator_stoken (" new"); } |
1525 | | OPERATOR DELETE | |
4cd18215 | 1526 | { $$ = operator_stoken (" delete"); } |
66c53f2b KS |
1527 | | OPERATOR NEW '[' ']' |
1528 | { $$ = operator_stoken (" new[]"); } | |
1529 | | OPERATOR DELETE '[' ']' | |
4cd18215 | 1530 | { $$ = operator_stoken (" delete[]"); } |
f2e8016f TT |
1531 | | OPERATOR NEW OBJC_LBRAC ']' |
1532 | { $$ = operator_stoken (" new[]"); } | |
1533 | | OPERATOR DELETE OBJC_LBRAC ']' | |
1534 | { $$ = operator_stoken (" delete[]"); } | |
66c53f2b KS |
1535 | | OPERATOR '+' |
1536 | { $$ = operator_stoken ("+"); } | |
1537 | | OPERATOR '-' | |
1538 | { $$ = operator_stoken ("-"); } | |
1539 | | OPERATOR '*' | |
1540 | { $$ = operator_stoken ("*"); } | |
1541 | | OPERATOR '/' | |
1542 | { $$ = operator_stoken ("/"); } | |
1543 | | OPERATOR '%' | |
1544 | { $$ = operator_stoken ("%"); } | |
1545 | | OPERATOR '^' | |
1546 | { $$ = operator_stoken ("^"); } | |
1547 | | OPERATOR '&' | |
1548 | { $$ = operator_stoken ("&"); } | |
1549 | | OPERATOR '|' | |
1550 | { $$ = operator_stoken ("|"); } | |
1551 | | OPERATOR '~' | |
1552 | { $$ = operator_stoken ("~"); } | |
1553 | | OPERATOR '!' | |
1554 | { $$ = operator_stoken ("!"); } | |
1555 | | OPERATOR '=' | |
1556 | { $$ = operator_stoken ("="); } | |
1557 | | OPERATOR '<' | |
1558 | { $$ = operator_stoken ("<"); } | |
1559 | | OPERATOR '>' | |
1560 | { $$ = operator_stoken (">"); } | |
1561 | | OPERATOR ASSIGN_MODIFY | |
c8ba13ad | 1562 | { const char *op = " unknown"; |
66c53f2b KS |
1563 | switch ($2) |
1564 | { | |
1565 | case BINOP_RSH: | |
1566 | op = ">>="; | |
1567 | break; | |
1568 | case BINOP_LSH: | |
1569 | op = "<<="; | |
1570 | break; | |
1571 | case BINOP_ADD: | |
1572 | op = "+="; | |
1573 | break; | |
1574 | case BINOP_SUB: | |
1575 | op = "-="; | |
1576 | break; | |
1577 | case BINOP_MUL: | |
1578 | op = "*="; | |
1579 | break; | |
1580 | case BINOP_DIV: | |
1581 | op = "/="; | |
1582 | break; | |
1583 | case BINOP_REM: | |
1584 | op = "%="; | |
1585 | break; | |
1586 | case BINOP_BITWISE_IOR: | |
1587 | op = "|="; | |
1588 | break; | |
1589 | case BINOP_BITWISE_AND: | |
1590 | op = "&="; | |
1591 | break; | |
1592 | case BINOP_BITWISE_XOR: | |
1593 | op = "^="; | |
1594 | break; | |
1595 | default: | |
1596 | break; | |
1597 | } | |
1598 | ||
1599 | $$ = operator_stoken (op); | |
1600 | } | |
1601 | | OPERATOR LSH | |
1602 | { $$ = operator_stoken ("<<"); } | |
1603 | | OPERATOR RSH | |
1604 | { $$ = operator_stoken (">>"); } | |
1605 | | OPERATOR EQUAL | |
1606 | { $$ = operator_stoken ("=="); } | |
1607 | | OPERATOR NOTEQUAL | |
1608 | { $$ = operator_stoken ("!="); } | |
1609 | | OPERATOR LEQ | |
1610 | { $$ = operator_stoken ("<="); } | |
1611 | | OPERATOR GEQ | |
1612 | { $$ = operator_stoken (">="); } | |
1613 | | OPERATOR ANDAND | |
1614 | { $$ = operator_stoken ("&&"); } | |
1615 | | OPERATOR OROR | |
1616 | { $$ = operator_stoken ("||"); } | |
1617 | | OPERATOR INCREMENT | |
1618 | { $$ = operator_stoken ("++"); } | |
1619 | | OPERATOR DECREMENT | |
1620 | { $$ = operator_stoken ("--"); } | |
1621 | | OPERATOR ',' | |
1622 | { $$ = operator_stoken (","); } | |
1623 | | OPERATOR ARROW_STAR | |
1624 | { $$ = operator_stoken ("->*"); } | |
1625 | | OPERATOR ARROW | |
1626 | { $$ = operator_stoken ("->"); } | |
1627 | | OPERATOR '(' ')' | |
1628 | { $$ = operator_stoken ("()"); } | |
1629 | | OPERATOR '[' ']' | |
1630 | { $$ = operator_stoken ("[]"); } | |
f2e8016f TT |
1631 | | OPERATOR OBJC_LBRAC ']' |
1632 | { $$ = operator_stoken ("[]"); } | |
95c391b6 | 1633 | | OPERATOR conversion_type_id |
d7e74731 | 1634 | { string_file buf; |
66c53f2b | 1635 | |
d7e74731 | 1636 | c_print_type ($2, NULL, &buf, -1, 0, |
79d43c61 | 1637 | &type_print_raw_options); |
c8ba13ad KS |
1638 | |
1639 | /* This also needs canonicalization. */ | |
1640 | std::string canon | |
1641 | = cp_canonicalize_string (buf.c_str ()); | |
1642 | if (canon.empty ()) | |
1643 | canon = std::move (buf.string ()); | |
1644 | $$ = operator_stoken ((" " + canon).c_str ()); | |
66c53f2b KS |
1645 | } |
1646 | ; | |
1647 | ||
1648 | ||
0f5d3f63 AB |
1649 | field_name |
1650 | : name | |
1651 | ; | |
66c53f2b | 1652 | |
c906108c SS |
1653 | name : NAME { $$ = $1.stoken; } |
1654 | | BLOCKNAME { $$ = $1.stoken; } | |
1655 | | TYPENAME { $$ = $1.stoken; } | |
1656 | | NAME_OR_INT { $$ = $1.stoken; } | |
7322dca9 | 1657 | | UNKNOWN_CPP_NAME { $$ = $1.stoken; } |
fe978cb0 | 1658 | | oper { $$ = $1; } |
c906108c SS |
1659 | ; |
1660 | ||
1661 | name_not_typename : NAME | |
1662 | | BLOCKNAME | |
1663 | /* These would be useful if name_not_typename was useful, but it is just | |
1664 | a fake for "variable", so these cause reduce/reduce conflicts because | |
1665 | the parser can't tell whether NAME_OR_INT is a name_not_typename (=variable, | |
1666 | =exp) or just an exp. If name_not_typename was ever used in an lvalue | |
1667 | context where only a name could occur, this might be useful. | |
1668 | | NAME_OR_INT | |
1669 | */ | |
fe978cb0 | 1670 | | oper |
6e31430b | 1671 | { |
1993b719 TT |
1672 | struct field_of_this_result is_a_field_of_this; |
1673 | ||
6e31430b TT |
1674 | $$.stoken = $1; |
1675 | $$.sym = lookup_symbol ($1.ptr, | |
1676 | expression_context_block, | |
1677 | VAR_DOMAIN, | |
1993b719 TT |
1678 | &is_a_field_of_this); |
1679 | $$.is_a_field_of_this | |
1680 | = is_a_field_of_this.type != NULL; | |
6e31430b | 1681 | } |
7322dca9 | 1682 | | UNKNOWN_CPP_NAME |
c906108c SS |
1683 | ; |
1684 | ||
1685 | %% | |
1686 | ||
24955f63 TT |
1687 | /* Like write_exp_string, but prepends a '~'. */ |
1688 | ||
1689 | static void | |
410a0ff2 | 1690 | write_destructor_name (struct parser_state *par_state, struct stoken token) |
24955f63 | 1691 | { |
224c3ddb | 1692 | char *copy = (char *) alloca (token.length + 1); |
24955f63 TT |
1693 | |
1694 | copy[0] = '~'; | |
1695 | memcpy (©[1], token.ptr, token.length); | |
1696 | ||
1697 | token.ptr = copy; | |
1698 | ++token.length; | |
1699 | ||
410a0ff2 | 1700 | write_exp_string (par_state, token); |
24955f63 TT |
1701 | } |
1702 | ||
66c53f2b | 1703 | /* Returns a stoken of the operator name given by OP (which does not |
4d29c0a8 DE |
1704 | include the string "operator"). */ |
1705 | ||
66c53f2b KS |
1706 | static struct stoken |
1707 | operator_stoken (const char *op) | |
1708 | { | |
66c53f2b | 1709 | struct stoken st = { NULL, 0 }; |
d7561cbb KS |
1710 | char *buf; |
1711 | ||
8090b426 | 1712 | st.length = CP_OPERATOR_LEN + strlen (op); |
224c3ddb | 1713 | buf = (char *) malloc (st.length + 1); |
8090b426 | 1714 | strcpy (buf, CP_OPERATOR_STR); |
d7561cbb KS |
1715 | strcat (buf, op); |
1716 | st.ptr = buf; | |
66c53f2b KS |
1717 | |
1718 | /* The toplevel (c_parse) will free the memory allocated here. */ | |
d7561cbb | 1719 | make_cleanup (free, buf); |
66c53f2b KS |
1720 | return st; |
1721 | }; | |
1722 | ||
3d567982 TT |
1723 | /* Return true if the type is aggregate-like. */ |
1724 | ||
1725 | static int | |
1726 | type_aggregate_p (struct type *type) | |
1727 | { | |
1728 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
1729 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
1730 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE | |
1731 | || (TYPE_CODE (type) == TYPE_CODE_ENUM | |
1732 | && TYPE_DECLARED_CLASS (type))); | |
1733 | } | |
1734 | ||
e314d629 TT |
1735 | /* Validate a parameter typelist. */ |
1736 | ||
1737 | static void | |
1738 | check_parameter_typelist (VEC (type_ptr) *params) | |
1739 | { | |
1740 | struct type *type; | |
1741 | int ix; | |
1742 | ||
1743 | for (ix = 0; VEC_iterate (type_ptr, params, ix, type); ++ix) | |
1744 | { | |
1745 | if (type != NULL && TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID) | |
1746 | { | |
1747 | if (ix == 0) | |
1748 | { | |
1749 | if (VEC_length (type_ptr, params) == 1) | |
1750 | { | |
1751 | /* Ok. */ | |
1752 | break; | |
1753 | } | |
1754 | VEC_free (type_ptr, params); | |
1755 | error (_("parameter types following 'void'")); | |
1756 | } | |
1757 | else | |
1758 | { | |
1759 | VEC_free (type_ptr, params); | |
1760 | error (_("'void' invalid as parameter type")); | |
1761 | } | |
1762 | } | |
1763 | } | |
1764 | } | |
1765 | ||
c906108c SS |
1766 | /* Take care of parsing a number (anything that starts with a digit). |
1767 | Set yylval and return the token type; update lexptr. | |
1768 | LEN is the number of characters in it. */ | |
1769 | ||
1770 | /*** Needs some error checking for the float case ***/ | |
1771 | ||
1772 | static int | |
410a0ff2 SDJ |
1773 | parse_number (struct parser_state *par_state, |
1774 | const char *buf, int len, int parsed_float, YYSTYPE *putithere) | |
c906108c | 1775 | { |
20562150 TT |
1776 | ULONGEST n = 0; |
1777 | ULONGEST prevn = 0; | |
c906108c SS |
1778 | ULONGEST un; |
1779 | ||
710122da DC |
1780 | int i = 0; |
1781 | int c; | |
1782 | int base = input_radix; | |
c906108c SS |
1783 | int unsigned_p = 0; |
1784 | ||
1785 | /* Number of "L" suffixes encountered. */ | |
1786 | int long_p = 0; | |
1787 | ||
1788 | /* We have found a "L" or "U" suffix. */ | |
1789 | int found_suffix = 0; | |
1790 | ||
1791 | ULONGEST high_bit; | |
1792 | struct type *signed_type; | |
1793 | struct type *unsigned_type; | |
d7561cbb KS |
1794 | char *p; |
1795 | ||
224c3ddb | 1796 | p = (char *) alloca (len); |
d7561cbb | 1797 | memcpy (p, buf, len); |
c906108c SS |
1798 | |
1799 | if (parsed_float) | |
1800 | { | |
edd079d9 | 1801 | /* Handle suffixes for decimal floating-point: "df", "dd" or "dl". */ |
fe9441f6 | 1802 | if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'f') |
27bc4d80 | 1803 | { |
edd079d9 | 1804 | putithere->typed_val_float.type |
410a0ff2 | 1805 | = parse_type (par_state)->builtin_decfloat; |
edd079d9 | 1806 | len -= 2; |
27bc4d80 | 1807 | } |
edd079d9 | 1808 | else if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'd') |
27bc4d80 | 1809 | { |
edd079d9 | 1810 | putithere->typed_val_float.type |
410a0ff2 | 1811 | = parse_type (par_state)->builtin_decdouble; |
edd079d9 | 1812 | len -= 2; |
27bc4d80 | 1813 | } |
edd079d9 | 1814 | else if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'l') |
27bc4d80 | 1815 | { |
edd079d9 | 1816 | putithere->typed_val_float.type |
410a0ff2 | 1817 | = parse_type (par_state)->builtin_declong; |
edd079d9 UW |
1818 | len -= 2; |
1819 | } | |
1820 | /* Handle suffixes: 'f' for float, 'l' for long double. */ | |
b1b60145 | 1821 | else if (len >= 1 && TOLOWER (p[len - 1]) == 'f') |
edd079d9 UW |
1822 | { |
1823 | putithere->typed_val_float.type | |
1824 | = parse_type (par_state)->builtin_float; | |
1825 | len -= 1; | |
1826 | } | |
b1b60145 | 1827 | else if (len >= 1 && TOLOWER (p[len - 1]) == 'l') |
edd079d9 UW |
1828 | { |
1829 | putithere->typed_val_float.type | |
1830 | = parse_type (par_state)->builtin_long_double; | |
1831 | len -= 1; | |
1832 | } | |
1833 | /* Default type for floating-point literals is double. */ | |
1834 | else | |
1835 | { | |
1836 | putithere->typed_val_float.type | |
1837 | = parse_type (par_state)->builtin_double; | |
27bc4d80 TJB |
1838 | } |
1839 | ||
edd079d9 UW |
1840 | if (!parse_float (p, len, |
1841 | putithere->typed_val_float.type, | |
1842 | putithere->typed_val_float.val)) | |
1843 | return ERROR; | |
c906108c SS |
1844 | return FLOAT; |
1845 | } | |
1846 | ||
1847 | /* Handle base-switching prefixes 0x, 0t, 0d, 0 */ | |
ebf13736 | 1848 | if (p[0] == '0' && len > 1) |
c906108c SS |
1849 | switch (p[1]) |
1850 | { | |
1851 | case 'x': | |
1852 | case 'X': | |
1853 | if (len >= 3) | |
1854 | { | |
1855 | p += 2; | |
1856 | base = 16; | |
1857 | len -= 2; | |
1858 | } | |
1859 | break; | |
1860 | ||
b5cfddf5 JK |
1861 | case 'b': |
1862 | case 'B': | |
1863 | if (len >= 3) | |
1864 | { | |
1865 | p += 2; | |
1866 | base = 2; | |
1867 | len -= 2; | |
1868 | } | |
1869 | break; | |
1870 | ||
c906108c SS |
1871 | case 't': |
1872 | case 'T': | |
1873 | case 'd': | |
1874 | case 'D': | |
1875 | if (len >= 3) | |
1876 | { | |
1877 | p += 2; | |
1878 | base = 10; | |
1879 | len -= 2; | |
1880 | } | |
1881 | break; | |
1882 | ||
1883 | default: | |
1884 | base = 8; | |
1885 | break; | |
1886 | } | |
1887 | ||
1888 | while (len-- > 0) | |
1889 | { | |
1890 | c = *p++; | |
1891 | if (c >= 'A' && c <= 'Z') | |
1892 | c += 'a' - 'A'; | |
1893 | if (c != 'l' && c != 'u') | |
1894 | n *= base; | |
1895 | if (c >= '0' && c <= '9') | |
1896 | { | |
1897 | if (found_suffix) | |
1898 | return ERROR; | |
1899 | n += i = c - '0'; | |
1900 | } | |
1901 | else | |
1902 | { | |
1903 | if (base > 10 && c >= 'a' && c <= 'f') | |
1904 | { | |
1905 | if (found_suffix) | |
1906 | return ERROR; | |
1907 | n += i = c - 'a' + 10; | |
1908 | } | |
1909 | else if (c == 'l') | |
1910 | { | |
1911 | ++long_p; | |
1912 | found_suffix = 1; | |
1913 | } | |
1914 | else if (c == 'u') | |
1915 | { | |
1916 | unsigned_p = 1; | |
1917 | found_suffix = 1; | |
1918 | } | |
1919 | else | |
1920 | return ERROR; /* Char not a digit */ | |
1921 | } | |
1922 | if (i >= base) | |
1923 | return ERROR; /* Invalid digit in this base */ | |
1924 | ||
1925 | /* Portably test for overflow (only works for nonzero values, so make | |
1926 | a second check for zero). FIXME: Can't we just make n and prevn | |
1927 | unsigned and avoid this? */ | |
1928 | if (c != 'l' && c != 'u' && (prevn >= n) && n != 0) | |
1929 | unsigned_p = 1; /* Try something unsigned */ | |
1930 | ||
1931 | /* Portably test for unsigned overflow. | |
1932 | FIXME: This check is wrong; for example it doesn't find overflow | |
1933 | on 0x123456789 when LONGEST is 32 bits. */ | |
1934 | if (c != 'l' && c != 'u' && n != 0) | |
1935 | { | |
20562150 | 1936 | if (unsigned_p && prevn >= n) |
001083c6 | 1937 | error (_("Numeric constant too large.")); |
c906108c SS |
1938 | } |
1939 | prevn = n; | |
1940 | } | |
1941 | ||
1942 | /* An integer constant is an int, a long, or a long long. An L | |
1943 | suffix forces it to be long; an LL suffix forces it to be long | |
1944 | long. If not forced to a larger size, it gets the first type of | |
1945 | the above that it fits in. To figure out whether it fits, we | |
1946 | shift it right and see whether anything remains. Note that we | |
1947 | can't shift sizeof (LONGEST) * HOST_CHAR_BIT bits or more in one | |
1948 | operation, because many compilers will warn about such a shift | |
9a76efb6 UW |
1949 | (which always produces a zero result). Sometimes gdbarch_int_bit |
1950 | or gdbarch_long_bit will be that big, sometimes not. To deal with | |
c906108c SS |
1951 | the case where it is we just always shift the value more than |
1952 | once, with fewer bits each time. */ | |
1953 | ||
20562150 | 1954 | un = n >> 2; |
c906108c | 1955 | if (long_p == 0 |
410a0ff2 | 1956 | && (un >> (gdbarch_int_bit (parse_gdbarch (par_state)) - 2)) == 0) |
c906108c | 1957 | { |
410a0ff2 SDJ |
1958 | high_bit |
1959 | = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch (par_state)) - 1); | |
c906108c SS |
1960 | |
1961 | /* A large decimal (not hex or octal) constant (between INT_MAX | |
1962 | and UINT_MAX) is a long or unsigned long, according to ANSI, | |
1963 | never an unsigned int, but this code treats it as unsigned | |
1964 | int. This probably should be fixed. GCC gives a warning on | |
1965 | such constants. */ | |
1966 | ||
410a0ff2 SDJ |
1967 | unsigned_type = parse_type (par_state)->builtin_unsigned_int; |
1968 | signed_type = parse_type (par_state)->builtin_int; | |
c906108c SS |
1969 | } |
1970 | else if (long_p <= 1 | |
410a0ff2 | 1971 | && (un >> (gdbarch_long_bit (parse_gdbarch (par_state)) - 2)) == 0) |
c906108c | 1972 | { |
410a0ff2 SDJ |
1973 | high_bit |
1974 | = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch (par_state)) - 1); | |
1975 | unsigned_type = parse_type (par_state)->builtin_unsigned_long; | |
1976 | signed_type = parse_type (par_state)->builtin_long; | |
c906108c SS |
1977 | } |
1978 | else | |
1979 | { | |
1980 | int shift; | |
4d29c0a8 | 1981 | if (sizeof (ULONGEST) * HOST_CHAR_BIT |
410a0ff2 | 1982 | < gdbarch_long_long_bit (parse_gdbarch (par_state))) |
c906108c SS |
1983 | /* A long long does not fit in a LONGEST. */ |
1984 | shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1); | |
1985 | else | |
410a0ff2 | 1986 | shift = (gdbarch_long_long_bit (parse_gdbarch (par_state)) - 1); |
c906108c | 1987 | high_bit = (ULONGEST) 1 << shift; |
410a0ff2 SDJ |
1988 | unsigned_type = parse_type (par_state)->builtin_unsigned_long_long; |
1989 | signed_type = parse_type (par_state)->builtin_long_long; | |
c906108c SS |
1990 | } |
1991 | ||
1992 | putithere->typed_val_int.val = n; | |
1993 | ||
1994 | /* If the high bit of the worked out type is set then this number | |
1995 | has to be unsigned. */ | |
1996 | ||
4d29c0a8 | 1997 | if (unsigned_p || (n & high_bit)) |
c906108c SS |
1998 | { |
1999 | putithere->typed_val_int.type = unsigned_type; | |
2000 | } | |
4d29c0a8 | 2001 | else |
c906108c SS |
2002 | { |
2003 | putithere->typed_val_int.type = signed_type; | |
2004 | } | |
2005 | ||
2006 | return INT; | |
2007 | } | |
2008 | ||
6c7a06a3 TT |
2009 | /* Temporary obstack used for holding strings. */ |
2010 | static struct obstack tempbuf; | |
2011 | static int tempbuf_init; | |
2012 | ||
2013 | /* Parse a C escape sequence. The initial backslash of the sequence | |
2014 | is at (*PTR)[-1]. *PTR will be updated to point to just after the | |
2015 | last character of the sequence. If OUTPUT is not NULL, the | |
2016 | translated form of the escape sequence will be written there. If | |
2017 | OUTPUT is NULL, no output is written and the call will only affect | |
2018 | *PTR. If an escape sequence is expressed in target bytes, then the | |
2019 | entire sequence will simply be copied to OUTPUT. Return 1 if any | |
2020 | character was emitted, 0 otherwise. */ | |
2021 | ||
2022 | int | |
d7561cbb | 2023 | c_parse_escape (const char **ptr, struct obstack *output) |
6c7a06a3 | 2024 | { |
d7561cbb | 2025 | const char *tokptr = *ptr; |
6c7a06a3 TT |
2026 | int result = 1; |
2027 | ||
2028 | /* Some escape sequences undergo character set conversion. Those we | |
2029 | translate here. */ | |
2030 | switch (*tokptr) | |
2031 | { | |
2032 | /* Hex escapes do not undergo character set conversion, so keep | |
2033 | the escape sequence for later. */ | |
2034 | case 'x': | |
2035 | if (output) | |
2036 | obstack_grow_str (output, "\\x"); | |
2037 | ++tokptr; | |
b1b60145 | 2038 | if (!ISXDIGIT (*tokptr)) |
6c7a06a3 | 2039 | error (_("\\x escape without a following hex digit")); |
b1b60145 | 2040 | while (ISXDIGIT (*tokptr)) |
6c7a06a3 TT |
2041 | { |
2042 | if (output) | |
2043 | obstack_1grow (output, *tokptr); | |
2044 | ++tokptr; | |
2045 | } | |
2046 | break; | |
2047 | ||
2048 | /* Octal escapes do not undergo character set conversion, so | |
2049 | keep the escape sequence for later. */ | |
2050 | case '0': | |
2051 | case '1': | |
2052 | case '2': | |
2053 | case '3': | |
2054 | case '4': | |
2055 | case '5': | |
2056 | case '6': | |
2057 | case '7': | |
30b66ecc TT |
2058 | { |
2059 | int i; | |
2060 | if (output) | |
2061 | obstack_grow_str (output, "\\"); | |
2062 | for (i = 0; | |
b1b60145 | 2063 | i < 3 && ISDIGIT (*tokptr) && *tokptr != '8' && *tokptr != '9'; |
30b66ecc TT |
2064 | ++i) |
2065 | { | |
2066 | if (output) | |
2067 | obstack_1grow (output, *tokptr); | |
2068 | ++tokptr; | |
2069 | } | |
2070 | } | |
6c7a06a3 TT |
2071 | break; |
2072 | ||
2073 | /* We handle UCNs later. We could handle them here, but that | |
2074 | would mean a spurious error in the case where the UCN could | |
2075 | be converted to the target charset but not the host | |
2076 | charset. */ | |
2077 | case 'u': | |
2078 | case 'U': | |
2079 | { | |
2080 | char c = *tokptr; | |
2081 | int i, len = c == 'U' ? 8 : 4; | |
2082 | if (output) | |
2083 | { | |
2084 | obstack_1grow (output, '\\'); | |
2085 | obstack_1grow (output, *tokptr); | |
2086 | } | |
2087 | ++tokptr; | |
b1b60145 | 2088 | if (!ISXDIGIT (*tokptr)) |
6c7a06a3 | 2089 | error (_("\\%c escape without a following hex digit"), c); |
b1b60145 | 2090 | for (i = 0; i < len && ISXDIGIT (*tokptr); ++i) |
6c7a06a3 TT |
2091 | { |
2092 | if (output) | |
2093 | obstack_1grow (output, *tokptr); | |
2094 | ++tokptr; | |
2095 | } | |
2096 | } | |
2097 | break; | |
2098 | ||
2099 | /* We must pass backslash through so that it does not | |
2100 | cause quoting during the second expansion. */ | |
2101 | case '\\': | |
2102 | if (output) | |
2103 | obstack_grow_str (output, "\\\\"); | |
2104 | ++tokptr; | |
2105 | break; | |
2106 | ||
2107 | /* Escapes which undergo conversion. */ | |
2108 | case 'a': | |
2109 | if (output) | |
2110 | obstack_1grow (output, '\a'); | |
2111 | ++tokptr; | |
2112 | break; | |
2113 | case 'b': | |
2114 | if (output) | |
2115 | obstack_1grow (output, '\b'); | |
2116 | ++tokptr; | |
2117 | break; | |
2118 | case 'f': | |
2119 | if (output) | |
2120 | obstack_1grow (output, '\f'); | |
2121 | ++tokptr; | |
2122 | break; | |
2123 | case 'n': | |
2124 | if (output) | |
2125 | obstack_1grow (output, '\n'); | |
2126 | ++tokptr; | |
2127 | break; | |
2128 | case 'r': | |
2129 | if (output) | |
2130 | obstack_1grow (output, '\r'); | |
2131 | ++tokptr; | |
2132 | break; | |
2133 | case 't': | |
2134 | if (output) | |
2135 | obstack_1grow (output, '\t'); | |
2136 | ++tokptr; | |
2137 | break; | |
2138 | case 'v': | |
2139 | if (output) | |
2140 | obstack_1grow (output, '\v'); | |
2141 | ++tokptr; | |
2142 | break; | |
2143 | ||
2144 | /* GCC extension. */ | |
2145 | case 'e': | |
2146 | if (output) | |
2147 | obstack_1grow (output, HOST_ESCAPE_CHAR); | |
2148 | ++tokptr; | |
2149 | break; | |
2150 | ||
2151 | /* Backslash-newline expands to nothing at all. */ | |
2152 | case '\n': | |
2153 | ++tokptr; | |
2154 | result = 0; | |
2155 | break; | |
2156 | ||
2157 | /* A few escapes just expand to the character itself. */ | |
2158 | case '\'': | |
2159 | case '\"': | |
2160 | case '?': | |
2161 | /* GCC extensions. */ | |
2162 | case '(': | |
2163 | case '{': | |
2164 | case '[': | |
2165 | case '%': | |
2166 | /* Unrecognized escapes turn into the character itself. */ | |
2167 | default: | |
2168 | if (output) | |
2169 | obstack_1grow (output, *tokptr); | |
2170 | ++tokptr; | |
2171 | break; | |
2172 | } | |
2173 | *ptr = tokptr; | |
2174 | return result; | |
2175 | } | |
2176 | ||
2177 | /* Parse a string or character literal from TOKPTR. The string or | |
2178 | character may be wide or unicode. *OUTPTR is set to just after the | |
2179 | end of the literal in the input string. The resulting token is | |
2180 | stored in VALUE. This returns a token value, either STRING or | |
2181 | CHAR, depending on what was parsed. *HOST_CHARS is set to the | |
2182 | number of host characters in the literal. */ | |
4d29c0a8 | 2183 | |
6c7a06a3 | 2184 | static int |
d7561cbb KS |
2185 | parse_string_or_char (const char *tokptr, const char **outptr, |
2186 | struct typed_stoken *value, int *host_chars) | |
6c7a06a3 | 2187 | { |
8c5630cb | 2188 | int quote; |
0c801b96 | 2189 | c_string_type type; |
f2e8016f | 2190 | int is_objc = 0; |
6c7a06a3 TT |
2191 | |
2192 | /* Build the gdb internal form of the input string in tempbuf. Note | |
2193 | that the buffer is null byte terminated *only* for the | |
2194 | convenience of debugging gdb itself and printing the buffer | |
2195 | contents when the buffer contains no embedded nulls. Gdb does | |
2196 | not depend upon the buffer being null byte terminated, it uses | |
2197 | the length string instead. This allows gdb to handle C strings | |
2198 | (as well as strings in other languages) with embedded null | |
2199 | bytes */ | |
2200 | ||
2201 | if (!tempbuf_init) | |
2202 | tempbuf_init = 1; | |
2203 | else | |
2204 | obstack_free (&tempbuf, NULL); | |
2205 | obstack_init (&tempbuf); | |
2206 | ||
2207 | /* Record the string type. */ | |
2208 | if (*tokptr == 'L') | |
2209 | { | |
2210 | type = C_WIDE_STRING; | |
2211 | ++tokptr; | |
2212 | } | |
2213 | else if (*tokptr == 'u') | |
2214 | { | |
2215 | type = C_STRING_16; | |
2216 | ++tokptr; | |
2217 | } | |
2218 | else if (*tokptr == 'U') | |
2219 | { | |
2220 | type = C_STRING_32; | |
2221 | ++tokptr; | |
2222 | } | |
f2e8016f TT |
2223 | else if (*tokptr == '@') |
2224 | { | |
2225 | /* An Objective C string. */ | |
2226 | is_objc = 1; | |
2227 | type = C_STRING; | |
2228 | ++tokptr; | |
2229 | } | |
6c7a06a3 TT |
2230 | else |
2231 | type = C_STRING; | |
2232 | ||
2233 | /* Skip the quote. */ | |
2234 | quote = *tokptr; | |
2235 | if (quote == '\'') | |
2236 | type |= C_CHAR; | |
2237 | ++tokptr; | |
2238 | ||
2239 | *host_chars = 0; | |
2240 | ||
2241 | while (*tokptr) | |
2242 | { | |
2243 | char c = *tokptr; | |
2244 | if (c == '\\') | |
2245 | { | |
2246 | ++tokptr; | |
2247 | *host_chars += c_parse_escape (&tokptr, &tempbuf); | |
2248 | } | |
2249 | else if (c == quote) | |
2250 | break; | |
2251 | else | |
2252 | { | |
2253 | obstack_1grow (&tempbuf, c); | |
2254 | ++tokptr; | |
2255 | /* FIXME: this does the wrong thing with multi-byte host | |
2256 | characters. We could use mbrlen here, but that would | |
2257 | make "set host-charset" a bit less useful. */ | |
2258 | ++*host_chars; | |
2259 | } | |
2260 | } | |
2261 | ||
2262 | if (*tokptr != quote) | |
2263 | { | |
2264 | if (quote == '"') | |
001083c6 | 2265 | error (_("Unterminated string in expression.")); |
6c7a06a3 | 2266 | else |
001083c6 | 2267 | error (_("Unmatched single quote.")); |
6c7a06a3 TT |
2268 | } |
2269 | ++tokptr; | |
2270 | ||
2271 | value->type = type; | |
79f33898 | 2272 | value->ptr = (char *) obstack_base (&tempbuf); |
6c7a06a3 TT |
2273 | value->length = obstack_object_size (&tempbuf); |
2274 | ||
2275 | *outptr = tokptr; | |
2276 | ||
f2e8016f | 2277 | return quote == '"' ? (is_objc ? NSSTRING : STRING) : CHAR; |
6c7a06a3 TT |
2278 | } |
2279 | ||
274b54d7 TT |
2280 | /* This is used to associate some attributes with a token. */ |
2281 | ||
8d297bbf | 2282 | enum token_flag |
274b54d7 TT |
2283 | { |
2284 | /* If this bit is set, the token is C++-only. */ | |
2285 | ||
2286 | FLAG_CXX = 1, | |
2287 | ||
2288 | /* If this bit is set, the token is conditional: if there is a | |
2289 | symbol of the same name, then the token is a symbol; otherwise, | |
2290 | the token is a keyword. */ | |
2291 | ||
2292 | FLAG_SHADOW = 2 | |
2293 | }; | |
8d297bbf | 2294 | DEF_ENUM_FLAGS_TYPE (enum token_flag, token_flags); |
274b54d7 | 2295 | |
c906108c SS |
2296 | struct token |
2297 | { | |
a121b7c1 | 2298 | const char *oper; |
c906108c SS |
2299 | int token; |
2300 | enum exp_opcode opcode; | |
8d297bbf | 2301 | token_flags flags; |
c906108c SS |
2302 | }; |
2303 | ||
2304 | static const struct token tokentab3[] = | |
2305 | { | |
ba163c7e | 2306 | {">>=", ASSIGN_MODIFY, BINOP_RSH, 0}, |
c1af96a0 | 2307 | {"<<=", ASSIGN_MODIFY, BINOP_LSH, 0}, |
274b54d7 | 2308 | {"->*", ARROW_STAR, BINOP_END, FLAG_CXX}, |
a6fb9c08 | 2309 | {"...", DOTDOTDOT, BINOP_END, 0} |
c906108c SS |
2310 | }; |
2311 | ||
2312 | static const struct token tokentab2[] = | |
2313 | { | |
ba163c7e TT |
2314 | {"+=", ASSIGN_MODIFY, BINOP_ADD, 0}, |
2315 | {"-=", ASSIGN_MODIFY, BINOP_SUB, 0}, | |
2316 | {"*=", ASSIGN_MODIFY, BINOP_MUL, 0}, | |
2317 | {"/=", ASSIGN_MODIFY, BINOP_DIV, 0}, | |
2318 | {"%=", ASSIGN_MODIFY, BINOP_REM, 0}, | |
2319 | {"|=", ASSIGN_MODIFY, BINOP_BITWISE_IOR, 0}, | |
2320 | {"&=", ASSIGN_MODIFY, BINOP_BITWISE_AND, 0}, | |
2321 | {"^=", ASSIGN_MODIFY, BINOP_BITWISE_XOR, 0}, | |
2322 | {"++", INCREMENT, BINOP_END, 0}, | |
2323 | {"--", DECREMENT, BINOP_END, 0}, | |
2324 | {"->", ARROW, BINOP_END, 0}, | |
2325 | {"&&", ANDAND, BINOP_END, 0}, | |
2326 | {"||", OROR, BINOP_END, 0}, | |
ec7f2efe KS |
2327 | /* "::" is *not* only C++: gdb overrides its meaning in several |
2328 | different ways, e.g., 'filename'::func, function::variable. */ | |
ba163c7e TT |
2329 | {"::", COLONCOLON, BINOP_END, 0}, |
2330 | {"<<", LSH, BINOP_END, 0}, | |
2331 | {">>", RSH, BINOP_END, 0}, | |
2332 | {"==", EQUAL, BINOP_END, 0}, | |
2333 | {"!=", NOTEQUAL, BINOP_END, 0}, | |
2334 | {"<=", LEQ, BINOP_END, 0}, | |
c1af96a0 | 2335 | {">=", GEQ, BINOP_END, 0}, |
274b54d7 | 2336 | {".*", DOT_STAR, BINOP_END, FLAG_CXX} |
ba163c7e TT |
2337 | }; |
2338 | ||
b6c95c0c AB |
2339 | /* Identifier-like tokens. Only type-specifiers than can appear in |
2340 | multi-word type names (for example 'double' can appear in 'long | |
2341 | double') need to be listed here. type-specifiers that are only ever | |
2342 | single word (like 'float') are handled by the classify_name function. */ | |
ba163c7e TT |
2343 | static const struct token ident_tokens[] = |
2344 | { | |
2345 | {"unsigned", UNSIGNED, OP_NULL, 0}, | |
274b54d7 | 2346 | {"template", TEMPLATE, OP_NULL, FLAG_CXX}, |
ba163c7e TT |
2347 | {"volatile", VOLATILE_KEYWORD, OP_NULL, 0}, |
2348 | {"struct", STRUCT, OP_NULL, 0}, | |
2349 | {"signed", SIGNED_KEYWORD, OP_NULL, 0}, | |
2350 | {"sizeof", SIZEOF, OP_NULL, 0}, | |
007e1530 TT |
2351 | {"_Alignof", ALIGNOF, OP_NULL, 0}, |
2352 | {"alignof", ALIGNOF, OP_NULL, FLAG_CXX}, | |
ba163c7e | 2353 | {"double", DOUBLE_KEYWORD, OP_NULL, 0}, |
274b54d7 TT |
2354 | {"false", FALSEKEYWORD, OP_NULL, FLAG_CXX}, |
2355 | {"class", CLASS, OP_NULL, FLAG_CXX}, | |
ba163c7e TT |
2356 | {"union", UNION, OP_NULL, 0}, |
2357 | {"short", SHORT, OP_NULL, 0}, | |
2358 | {"const", CONST_KEYWORD, OP_NULL, 0}, | |
2359 | {"enum", ENUM, OP_NULL, 0}, | |
2360 | {"long", LONG, OP_NULL, 0}, | |
274b54d7 | 2361 | {"true", TRUEKEYWORD, OP_NULL, FLAG_CXX}, |
ba163c7e | 2362 | {"int", INT_KEYWORD, OP_NULL, 0}, |
274b54d7 TT |
2363 | {"new", NEW, OP_NULL, FLAG_CXX}, |
2364 | {"delete", DELETE, OP_NULL, FLAG_CXX}, | |
2365 | {"operator", OPERATOR, OP_NULL, FLAG_CXX}, | |
2366 | ||
2367 | {"and", ANDAND, BINOP_END, FLAG_CXX}, | |
2368 | {"and_eq", ASSIGN_MODIFY, BINOP_BITWISE_AND, FLAG_CXX}, | |
2369 | {"bitand", '&', OP_NULL, FLAG_CXX}, | |
2370 | {"bitor", '|', OP_NULL, FLAG_CXX}, | |
2371 | {"compl", '~', OP_NULL, FLAG_CXX}, | |
2372 | {"not", '!', OP_NULL, FLAG_CXX}, | |
2373 | {"not_eq", NOTEQUAL, BINOP_END, FLAG_CXX}, | |
2374 | {"or", OROR, BINOP_END, FLAG_CXX}, | |
2375 | {"or_eq", ASSIGN_MODIFY, BINOP_BITWISE_IOR, FLAG_CXX}, | |
2376 | {"xor", '^', OP_NULL, FLAG_CXX}, | |
2377 | {"xor_eq", ASSIGN_MODIFY, BINOP_BITWISE_XOR, FLAG_CXX}, | |
2378 | ||
2379 | {"const_cast", CONST_CAST, OP_NULL, FLAG_CXX }, | |
2380 | {"dynamic_cast", DYNAMIC_CAST, OP_NULL, FLAG_CXX }, | |
2381 | {"static_cast", STATIC_CAST, OP_NULL, FLAG_CXX }, | |
608b4967 TT |
2382 | {"reinterpret_cast", REINTERPRET_CAST, OP_NULL, FLAG_CXX }, |
2383 | ||
2384 | {"__typeof__", TYPEOF, OP_TYPEOF, 0 }, | |
2385 | {"__typeof", TYPEOF, OP_TYPEOF, 0 }, | |
2386 | {"typeof", TYPEOF, OP_TYPEOF, FLAG_SHADOW }, | |
2387 | {"__decltype", DECLTYPE, OP_DECLTYPE, FLAG_CXX }, | |
6e72ca20 TT |
2388 | {"decltype", DECLTYPE, OP_DECLTYPE, FLAG_CXX | FLAG_SHADOW }, |
2389 | ||
2390 | {"typeid", TYPEID, OP_TYPEID, FLAG_CXX} | |
c906108c SS |
2391 | }; |
2392 | ||
7c8adf68 TT |
2393 | /* When we find that lexptr (the global var defined in parse.c) is |
2394 | pointing at a macro invocation, we expand the invocation, and call | |
2395 | scan_macro_expansion to save the old lexptr here and point lexptr | |
2396 | into the expanded text. When we reach the end of that, we call | |
2397 | end_macro_expansion to pop back to the value we saved here. The | |
2398 | macro expansion code promises to return only fully-expanded text, | |
2399 | so we don't need to "push" more than one level. | |
2400 | ||
2401 | This is disgusting, of course. It would be cleaner to do all macro | |
2402 | expansion beforehand, and then hand that to lexptr. But we don't | |
2403 | really know where the expression ends. Remember, in a command like | |
2404 | ||
2405 | (gdb) break *ADDRESS if CONDITION | |
2406 | ||
2407 | we evaluate ADDRESS in the scope of the current frame, but we | |
2408 | evaluate CONDITION in the scope of the breakpoint's location. So | |
2409 | it's simply wrong to try to macro-expand the whole thing at once. */ | |
d7561cbb | 2410 | static const char *macro_original_text; |
7c8adf68 TT |
2411 | |
2412 | /* We save all intermediate macro expansions on this obstack for the | |
2413 | duration of a single parse. The expansion text may sometimes have | |
2414 | to live past the end of the expansion, due to yacc lookahead. | |
2415 | Rather than try to be clever about saving the data for a single | |
2416 | token, we simply keep it all and delete it after parsing has | |
2417 | completed. */ | |
2418 | static struct obstack expansion_obstack; | |
2419 | ||
2420 | static void | |
2421 | scan_macro_expansion (char *expansion) | |
2422 | { | |
2423 | char *copy; | |
2424 | ||
2425 | /* We'd better not be trying to push the stack twice. */ | |
2426 | gdb_assert (! macro_original_text); | |
2427 | ||
2428 | /* Copy to the obstack, and then free the intermediate | |
2429 | expansion. */ | |
224c3ddb SM |
2430 | copy = (char *) obstack_copy0 (&expansion_obstack, expansion, |
2431 | strlen (expansion)); | |
7c8adf68 TT |
2432 | xfree (expansion); |
2433 | ||
2434 | /* Save the old lexptr value, so we can return to it when we're done | |
2435 | parsing the expanded text. */ | |
2436 | macro_original_text = lexptr; | |
2437 | lexptr = copy; | |
2438 | } | |
2439 | ||
7c8adf68 TT |
2440 | static int |
2441 | scanning_macro_expansion (void) | |
2442 | { | |
2443 | return macro_original_text != 0; | |
2444 | } | |
2445 | ||
4d29c0a8 | 2446 | static void |
7c8adf68 TT |
2447 | finished_macro_expansion (void) |
2448 | { | |
2449 | /* There'd better be something to pop back to. */ | |
2450 | gdb_assert (macro_original_text); | |
2451 | ||
2452 | /* Pop back to the original text. */ | |
2453 | lexptr = macro_original_text; | |
2454 | macro_original_text = 0; | |
2455 | } | |
2456 | ||
7c8adf68 TT |
2457 | static void |
2458 | scan_macro_cleanup (void *dummy) | |
2459 | { | |
2460 | if (macro_original_text) | |
2461 | finished_macro_expansion (); | |
2462 | ||
2463 | obstack_free (&expansion_obstack, NULL); | |
2464 | } | |
2465 | ||
4e8f195d TT |
2466 | /* Return true iff the token represents a C++ cast operator. */ |
2467 | ||
2468 | static int | |
2469 | is_cast_operator (const char *token, int len) | |
2470 | { | |
2471 | return (! strncmp (token, "dynamic_cast", len) | |
2472 | || ! strncmp (token, "static_cast", len) | |
2473 | || ! strncmp (token, "reinterpret_cast", len) | |
2474 | || ! strncmp (token, "const_cast", len)); | |
2475 | } | |
7c8adf68 TT |
2476 | |
2477 | /* The scope used for macro expansion. */ | |
2478 | static struct macro_scope *expression_macro_scope; | |
2479 | ||
65d12d83 TT |
2480 | /* This is set if a NAME token appeared at the very end of the input |
2481 | string, with no whitespace separating the name from the EOF. This | |
2482 | is used only when parsing to do field name completion. */ | |
2483 | static int saw_name_at_eof; | |
2484 | ||
2485 | /* This is set if the previously-returned token was a structure | |
59498c30 LS |
2486 | operator -- either '.' or ARROW. */ |
2487 | static bool last_was_structop; | |
65d12d83 | 2488 | |
c906108c SS |
2489 | /* Read one token, getting characters through lexptr. */ |
2490 | ||
2491 | static int | |
59498c30 | 2492 | lex_one_token (struct parser_state *par_state, bool *is_quoted_name) |
c906108c SS |
2493 | { |
2494 | int c; | |
2495 | int namelen; | |
2496 | unsigned int i; | |
d7561cbb | 2497 | const char *tokstart; |
59498c30 | 2498 | bool saw_structop = last_was_structop; |
ba163c7e | 2499 | char *copy; |
65d12d83 | 2500 | |
59498c30 LS |
2501 | last_was_structop = false; |
2502 | *is_quoted_name = false; | |
65d12d83 | 2503 | |
c906108c SS |
2504 | retry: |
2505 | ||
84f0252a JB |
2506 | /* Check if this is a macro invocation that we need to expand. */ |
2507 | if (! scanning_macro_expansion ()) | |
2508 | { | |
2509 | char *expanded = macro_expand_next (&lexptr, | |
7c8adf68 TT |
2510 | standard_macro_lookup, |
2511 | expression_macro_scope); | |
84f0252a JB |
2512 | |
2513 | if (expanded) | |
2514 | scan_macro_expansion (expanded); | |
2515 | } | |
2516 | ||
665132f9 | 2517 | prev_lexptr = lexptr; |
c906108c SS |
2518 | |
2519 | tokstart = lexptr; | |
2520 | /* See if it is a special token of length 3. */ | |
2521 | for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++) | |
fe978cb0 | 2522 | if (strncmp (tokstart, tokentab3[i].oper, 3) == 0) |
c906108c | 2523 | { |
274b54d7 | 2524 | if ((tokentab3[i].flags & FLAG_CXX) != 0 |
410a0ff2 | 2525 | && parse_language (par_state)->la_language != language_cplus) |
ec7f2efe KS |
2526 | break; |
2527 | ||
c906108c SS |
2528 | lexptr += 3; |
2529 | yylval.opcode = tokentab3[i].opcode; | |
2530 | return tokentab3[i].token; | |
2531 | } | |
2532 | ||
2533 | /* See if it is a special token of length 2. */ | |
2534 | for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++) | |
fe978cb0 | 2535 | if (strncmp (tokstart, tokentab2[i].oper, 2) == 0) |
c906108c | 2536 | { |
274b54d7 | 2537 | if ((tokentab2[i].flags & FLAG_CXX) != 0 |
410a0ff2 | 2538 | && parse_language (par_state)->la_language != language_cplus) |
ec7f2efe KS |
2539 | break; |
2540 | ||
c906108c SS |
2541 | lexptr += 2; |
2542 | yylval.opcode = tokentab2[i].opcode; | |
59498c30 | 2543 | if (tokentab2[i].token == ARROW) |
65d12d83 | 2544 | last_was_structop = 1; |
c906108c SS |
2545 | return tokentab2[i].token; |
2546 | } | |
2547 | ||
2548 | switch (c = *tokstart) | |
2549 | { | |
2550 | case 0: | |
84f0252a JB |
2551 | /* If we were just scanning the result of a macro expansion, |
2552 | then we need to resume scanning the original text. | |
65d12d83 TT |
2553 | If we're parsing for field name completion, and the previous |
2554 | token allows such completion, return a COMPLETE token. | |
84f0252a JB |
2555 | Otherwise, we were already scanning the original text, and |
2556 | we're really done. */ | |
2557 | if (scanning_macro_expansion ()) | |
2558 | { | |
2559 | finished_macro_expansion (); | |
2560 | goto retry; | |
2561 | } | |
65d12d83 TT |
2562 | else if (saw_name_at_eof) |
2563 | { | |
2564 | saw_name_at_eof = 0; | |
2565 | return COMPLETE; | |
2566 | } | |
59498c30 | 2567 | else if (parse_completion && saw_structop) |
65d12d83 | 2568 | return COMPLETE; |
84f0252a JB |
2569 | else |
2570 | return 0; | |
c906108c SS |
2571 | |
2572 | case ' ': | |
2573 | case '\t': | |
2574 | case '\n': | |
2575 | lexptr++; | |
2576 | goto retry; | |
2577 | ||
379a77b5 | 2578 | case '[': |
c906108c SS |
2579 | case '(': |
2580 | paren_depth++; | |
2581 | lexptr++; | |
410a0ff2 SDJ |
2582 | if (parse_language (par_state)->la_language == language_objc |
2583 | && c == '[') | |
f2e8016f | 2584 | return OBJC_LBRAC; |
c906108c SS |
2585 | return c; |
2586 | ||
379a77b5 | 2587 | case ']': |
c906108c SS |
2588 | case ')': |
2589 | if (paren_depth == 0) | |
2590 | return 0; | |
2591 | paren_depth--; | |
2592 | lexptr++; | |
2593 | return c; | |
2594 | ||
2595 | case ',': | |
84f0252a JB |
2596 | if (comma_terminates |
2597 | && paren_depth == 0 | |
2598 | && ! scanning_macro_expansion ()) | |
c906108c SS |
2599 | return 0; |
2600 | lexptr++; | |
2601 | return c; | |
2602 | ||
2603 | case '.': | |
2604 | /* Might be a floating point number. */ | |
2605 | if (lexptr[1] < '0' || lexptr[1] > '9') | |
65d12d83 | 2606 | { |
59498c30 | 2607 | last_was_structop = true; |
65d12d83 TT |
2608 | goto symbol; /* Nope, must be a symbol. */ |
2609 | } | |
86a73007 | 2610 | /* FALL THRU. */ |
c906108c SS |
2611 | |
2612 | case '0': | |
2613 | case '1': | |
2614 | case '2': | |
2615 | case '3': | |
2616 | case '4': | |
2617 | case '5': | |
2618 | case '6': | |
2619 | case '7': | |
2620 | case '8': | |
2621 | case '9': | |
2622 | { | |
2623 | /* It's a number. */ | |
2624 | int got_dot = 0, got_e = 0, toktype; | |
d7561cbb | 2625 | const char *p = tokstart; |
c906108c SS |
2626 | int hex = input_radix > 10; |
2627 | ||
2628 | if (c == '0' && (p[1] == 'x' || p[1] == 'X')) | |
2629 | { | |
2630 | p += 2; | |
2631 | hex = 1; | |
2632 | } | |
2633 | else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D')) | |
2634 | { | |
2635 | p += 2; | |
2636 | hex = 0; | |
2637 | } | |
2638 | ||
2639 | for (;; ++p) | |
2640 | { | |
2641 | /* This test includes !hex because 'e' is a valid hex digit | |
2642 | and thus does not indicate a floating point number when | |
2643 | the radix is hex. */ | |
2644 | if (!hex && !got_e && (*p == 'e' || *p == 'E')) | |
2645 | got_dot = got_e = 1; | |
2646 | /* This test does not include !hex, because a '.' always indicates | |
2647 | a decimal floating point number regardless of the radix. */ | |
2648 | else if (!got_dot && *p == '.') | |
2649 | got_dot = 1; | |
2650 | else if (got_e && (p[-1] == 'e' || p[-1] == 'E') | |
2651 | && (*p == '-' || *p == '+')) | |
2652 | /* This is the sign of the exponent, not the end of the | |
2653 | number. */ | |
2654 | continue; | |
2655 | /* We will take any letters or digits. parse_number will | |
2656 | complain if past the radix, or if L or U are not final. */ | |
2657 | else if ((*p < '0' || *p > '9') | |
2658 | && ((*p < 'a' || *p > 'z') | |
2659 | && (*p < 'A' || *p > 'Z'))) | |
2660 | break; | |
2661 | } | |
410a0ff2 SDJ |
2662 | toktype = parse_number (par_state, tokstart, p - tokstart, |
2663 | got_dot|got_e, &yylval); | |
c906108c SS |
2664 | if (toktype == ERROR) |
2665 | { | |
2666 | char *err_copy = (char *) alloca (p - tokstart + 1); | |
2667 | ||
2668 | memcpy (err_copy, tokstart, p - tokstart); | |
2669 | err_copy[p - tokstart] = 0; | |
001083c6 | 2670 | error (_("Invalid number \"%s\"."), err_copy); |
c906108c SS |
2671 | } |
2672 | lexptr = p; | |
2673 | return toktype; | |
2674 | } | |
2675 | ||
941b2081 JK |
2676 | case '@': |
2677 | { | |
d7561cbb | 2678 | const char *p = &tokstart[1]; |
941b2081 | 2679 | |
410a0ff2 | 2680 | if (parse_language (par_state)->la_language == language_objc) |
f2e8016f TT |
2681 | { |
2682 | size_t len = strlen ("selector"); | |
2683 | ||
2684 | if (strncmp (p, "selector", len) == 0 | |
b1b60145 | 2685 | && (p[len] == '\0' || ISSPACE (p[len]))) |
f2e8016f TT |
2686 | { |
2687 | lexptr = p + len; | |
2688 | return SELECTOR; | |
2689 | } | |
2690 | else if (*p == '"') | |
2691 | goto parse_string; | |
2692 | } | |
2693 | ||
b1b60145 | 2694 | while (ISSPACE (*p)) |
941b2081 | 2695 | p++; |
b926417a | 2696 | size_t len = strlen ("entry"); |
b1b60145 | 2697 | if (strncmp (p, "entry", len) == 0 && !c_ident_is_alnum (p[len]) |
941b2081 JK |
2698 | && p[len] != '_') |
2699 | { | |
2700 | lexptr = &p[len]; | |
2701 | return ENTRY; | |
2702 | } | |
2703 | } | |
2704 | /* FALLTHRU */ | |
c906108c SS |
2705 | case '+': |
2706 | case '-': | |
2707 | case '*': | |
2708 | case '/': | |
2709 | case '%': | |
2710 | case '|': | |
2711 | case '&': | |
2712 | case '^': | |
2713 | case '~': | |
2714 | case '!': | |
c906108c SS |
2715 | case '<': |
2716 | case '>': | |
c906108c SS |
2717 | case '?': |
2718 | case ':': | |
2719 | case '=': | |
2720 | case '{': | |
2721 | case '}': | |
2722 | symbol: | |
2723 | lexptr++; | |
2724 | return c; | |
2725 | ||
6c7a06a3 TT |
2726 | case 'L': |
2727 | case 'u': | |
2728 | case 'U': | |
2729 | if (tokstart[1] != '"' && tokstart[1] != '\'') | |
2730 | break; | |
2731 | /* Fall through. */ | |
2732 | case '\'': | |
c906108c | 2733 | case '"': |
f2e8016f TT |
2734 | |
2735 | parse_string: | |
6c7a06a3 TT |
2736 | { |
2737 | int host_len; | |
2738 | int result = parse_string_or_char (tokstart, &lexptr, &yylval.tsval, | |
2739 | &host_len); | |
2740 | if (result == CHAR) | |
c906108c | 2741 | { |
6c7a06a3 | 2742 | if (host_len == 0) |
001083c6 | 2743 | error (_("Empty character constant.")); |
6c7a06a3 | 2744 | else if (host_len > 2 && c == '\'') |
c906108c | 2745 | { |
6c7a06a3 TT |
2746 | ++tokstart; |
2747 | namelen = lexptr - tokstart - 1; | |
59498c30 | 2748 | *is_quoted_name = true; |
805e1f19 | 2749 | |
6c7a06a3 | 2750 | goto tryname; |
c906108c | 2751 | } |
6c7a06a3 | 2752 | else if (host_len > 1) |
001083c6 | 2753 | error (_("Invalid character constant.")); |
c906108c | 2754 | } |
6c7a06a3 TT |
2755 | return result; |
2756 | } | |
c906108c SS |
2757 | } |
2758 | ||
b1b60145 | 2759 | if (!(c == '_' || c == '$' || c_ident_is_alpha (c))) |
c906108c | 2760 | /* We must have come across a bad character (e.g. ';'). */ |
001083c6 | 2761 | error (_("Invalid character '%c' in expression."), c); |
c906108c SS |
2762 | |
2763 | /* It's a name. See how long it is. */ | |
2764 | namelen = 0; | |
2765 | for (c = tokstart[namelen]; | |
b1b60145 | 2766 | (c == '_' || c == '$' || c_ident_is_alnum (c) || c == '<');) |
c906108c SS |
2767 | { |
2768 | /* Template parameter lists are part of the name. | |
2769 | FIXME: This mishandles `print $a<4&&$a>3'. */ | |
2770 | ||
2771 | if (c == '<') | |
4e8f195d TT |
2772 | { |
2773 | if (! is_cast_operator (tokstart, namelen)) | |
2774 | { | |
2775 | /* Scan ahead to get rest of the template specification. Note | |
2776 | that we look ahead only when the '<' adjoins non-whitespace | |
2777 | characters; for comparison expressions, e.g. "a < b > c", | |
2778 | there must be spaces before the '<', etc. */ | |
d7561cbb KS |
2779 | const char *p = find_template_name_end (tokstart + namelen); |
2780 | ||
4e8f195d TT |
2781 | if (p) |
2782 | namelen = p - tokstart; | |
2783 | } | |
2784 | break; | |
c906108c SS |
2785 | } |
2786 | c = tokstart[++namelen]; | |
2787 | } | |
2788 | ||
84f0252a JB |
2789 | /* The token "if" terminates the expression and is NOT removed from |
2790 | the input stream. It doesn't count if it appears in the | |
2791 | expansion of a macro. */ | |
2792 | if (namelen == 2 | |
2793 | && tokstart[0] == 'i' | |
2794 | && tokstart[1] == 'f' | |
2795 | && ! scanning_macro_expansion ()) | |
c906108c SS |
2796 | { |
2797 | return 0; | |
2798 | } | |
2799 | ||
b6199126 DJ |
2800 | /* For the same reason (breakpoint conditions), "thread N" |
2801 | terminates the expression. "thread" could be an identifier, but | |
2802 | an identifier is never followed by a number without intervening | |
2803 | punctuation. "task" is similar. Handle abbreviations of these, | |
2804 | similarly to breakpoint.c:find_condition_and_thread. */ | |
2805 | if (namelen >= 1 | |
2806 | && (strncmp (tokstart, "thread", namelen) == 0 | |
2807 | || strncmp (tokstart, "task", namelen) == 0) | |
2808 | && (tokstart[namelen] == ' ' || tokstart[namelen] == '\t') | |
2809 | && ! scanning_macro_expansion ()) | |
2810 | { | |
d7561cbb KS |
2811 | const char *p = tokstart + namelen + 1; |
2812 | ||
b6199126 DJ |
2813 | while (*p == ' ' || *p == '\t') |
2814 | p++; | |
2815 | if (*p >= '0' && *p <= '9') | |
2816 | return 0; | |
2817 | } | |
2818 | ||
c906108c SS |
2819 | lexptr += namelen; |
2820 | ||
2821 | tryname: | |
2822 | ||
c906108c SS |
2823 | yylval.sval.ptr = tokstart; |
2824 | yylval.sval.length = namelen; | |
2825 | ||
ba163c7e TT |
2826 | /* Catch specific keywords. */ |
2827 | copy = copy_name (yylval.sval); | |
2828 | for (i = 0; i < sizeof ident_tokens / sizeof ident_tokens[0]; i++) | |
fe978cb0 | 2829 | if (strcmp (copy, ident_tokens[i].oper) == 0) |
ba163c7e | 2830 | { |
274b54d7 | 2831 | if ((ident_tokens[i].flags & FLAG_CXX) != 0 |
410a0ff2 | 2832 | && parse_language (par_state)->la_language != language_cplus) |
ba163c7e TT |
2833 | break; |
2834 | ||
274b54d7 TT |
2835 | if ((ident_tokens[i].flags & FLAG_SHADOW) != 0) |
2836 | { | |
1993b719 | 2837 | struct field_of_this_result is_a_field_of_this; |
274b54d7 TT |
2838 | |
2839 | if (lookup_symbol (copy, expression_context_block, | |
2840 | VAR_DOMAIN, | |
410a0ff2 SDJ |
2841 | (parse_language (par_state)->la_language |
2842 | == language_cplus ? &is_a_field_of_this | |
d12307c1 | 2843 | : NULL)).symbol |
274b54d7 TT |
2844 | != NULL) |
2845 | { | |
2846 | /* The keyword is shadowed. */ | |
2847 | break; | |
2848 | } | |
2849 | } | |
2850 | ||
ba163c7e TT |
2851 | /* It is ok to always set this, even though we don't always |
2852 | strictly need to. */ | |
2853 | yylval.opcode = ident_tokens[i].opcode; | |
2854 | return ident_tokens[i].token; | |
2855 | } | |
2856 | ||
c906108c | 2857 | if (*tokstart == '$') |
48e32051 TT |
2858 | return VARIABLE; |
2859 | ||
155da517 | 2860 | if (parse_completion && *lexptr == '\0') |
48e32051 | 2861 | saw_name_at_eof = 1; |
e234dfaf TT |
2862 | |
2863 | yylval.ssym.stoken = yylval.sval; | |
d12307c1 PMR |
2864 | yylval.ssym.sym.symbol = NULL; |
2865 | yylval.ssym.sym.block = NULL; | |
e234dfaf | 2866 | yylval.ssym.is_a_field_of_this = 0; |
48e32051 TT |
2867 | return NAME; |
2868 | } | |
2869 | ||
2870 | /* An object of this type is pushed on a FIFO by the "outer" lexer. */ | |
5fe3f3e4 | 2871 | struct token_and_value |
48e32051 TT |
2872 | { |
2873 | int token; | |
e707a91d | 2874 | YYSTYPE value; |
5fe3f3e4 | 2875 | }; |
48e32051 TT |
2876 | |
2877 | /* A FIFO of tokens that have been read but not yet returned to the | |
2878 | parser. */ | |
5fe3f3e4 | 2879 | static std::vector<token_and_value> token_fifo; |
48e32051 TT |
2880 | |
2881 | /* Non-zero if the lexer should return tokens from the FIFO. */ | |
2882 | static int popping; | |
2883 | ||
2884 | /* Temporary storage for c_lex; this holds symbol names as they are | |
2885 | built up. */ | |
8268c778 | 2886 | auto_obstack name_obstack; |
48e32051 TT |
2887 | |
2888 | /* Classify a NAME token. The contents of the token are in `yylval'. | |
2889 | Updates yylval and returns the new token type. BLOCK is the block | |
805e1f19 TT |
2890 | in which lookups start; this can be NULL to mean the global scope. |
2891 | IS_QUOTED_NAME is non-zero if the name token was originally quoted | |
59498c30 LS |
2892 | in single quotes. IS_AFTER_STRUCTOP is true if this name follows |
2893 | a structure operator -- either '.' or ARROW */ | |
4d29c0a8 | 2894 | |
48e32051 | 2895 | static int |
410a0ff2 | 2896 | classify_name (struct parser_state *par_state, const struct block *block, |
59498c30 | 2897 | bool is_quoted_name, bool is_after_structop) |
48e32051 | 2898 | { |
d12307c1 | 2899 | struct block_symbol bsym; |
48e32051 | 2900 | char *copy; |
1993b719 | 2901 | struct field_of_this_result is_a_field_of_this; |
48e32051 TT |
2902 | |
2903 | copy = copy_name (yylval.sval); | |
2904 | ||
1993b719 TT |
2905 | /* Initialize this in case we *don't* use it in this call; that way |
2906 | we can refer to it unconditionally below. */ | |
2907 | memset (&is_a_field_of_this, 0, sizeof (is_a_field_of_this)); | |
2908 | ||
d12307c1 PMR |
2909 | bsym = lookup_symbol (copy, block, VAR_DOMAIN, |
2910 | parse_language (par_state)->la_name_of_this | |
2911 | ? &is_a_field_of_this : NULL); | |
48e32051 | 2912 | |
d12307c1 | 2913 | if (bsym.symbol && SYMBOL_CLASS (bsym.symbol) == LOC_BLOCK) |
c906108c | 2914 | { |
d12307c1 | 2915 | yylval.ssym.sym = bsym; |
1993b719 | 2916 | yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL; |
48e32051 | 2917 | return BLOCKNAME; |
c906108c | 2918 | } |
d12307c1 | 2919 | else if (!bsym.symbol) |
48e32051 | 2920 | { |
6592e36f TT |
2921 | /* If we found a field of 'this', we might have erroneously |
2922 | found a constructor where we wanted a type name. Handle this | |
2923 | case by noticing that we found a constructor and then look up | |
2924 | the type tag instead. */ | |
2925 | if (is_a_field_of_this.type != NULL | |
2926 | && is_a_field_of_this.fn_field != NULL | |
2927 | && TYPE_FN_FIELD_CONSTRUCTOR (is_a_field_of_this.fn_field->fn_fields, | |
2928 | 0)) | |
2929 | { | |
2930 | struct field_of_this_result inner_is_a_field_of_this; | |
2931 | ||
d12307c1 PMR |
2932 | bsym = lookup_symbol (copy, block, STRUCT_DOMAIN, |
2933 | &inner_is_a_field_of_this); | |
2934 | if (bsym.symbol != NULL) | |
6592e36f | 2935 | { |
d12307c1 | 2936 | yylval.tsym.type = SYMBOL_TYPE (bsym.symbol); |
6592e36f TT |
2937 | return TYPENAME; |
2938 | } | |
2939 | } | |
805e1f19 | 2940 | |
59498c30 LS |
2941 | /* If we found a field on the "this" object, or we are looking |
2942 | up a field on a struct, then we want to prefer it over a | |
805e1f19 TT |
2943 | filename. However, if the name was quoted, then it is better |
2944 | to check for a filename or a block, since this is the only | |
2945 | way the user has of requiring the extension to be used. */ | |
59498c30 LS |
2946 | if ((is_a_field_of_this.type == NULL && !is_after_structop) |
2947 | || is_quoted_name) | |
805e1f19 TT |
2948 | { |
2949 | /* See if it's a file name. */ | |
2950 | struct symtab *symtab; | |
2951 | ||
2952 | symtab = lookup_symtab (copy); | |
2953 | if (symtab) | |
2954 | { | |
439247b6 | 2955 | yylval.bval = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab), |
805e1f19 TT |
2956 | STATIC_BLOCK); |
2957 | return FILENAME; | |
2958 | } | |
2959 | } | |
48e32051 | 2960 | } |
c906108c | 2961 | |
d12307c1 | 2962 | if (bsym.symbol && SYMBOL_CLASS (bsym.symbol) == LOC_TYPEDEF) |
48e32051 | 2963 | { |
d12307c1 | 2964 | yylval.tsym.type = SYMBOL_TYPE (bsym.symbol); |
47663de5 | 2965 | return TYPENAME; |
48e32051 | 2966 | } |
c906108c | 2967 | |
f2e8016f | 2968 | /* See if it's an ObjC classname. */ |
d12307c1 | 2969 | if (parse_language (par_state)->la_language == language_objc && !bsym.symbol) |
f2e8016f | 2970 | { |
410a0ff2 | 2971 | CORE_ADDR Class = lookup_objc_class (parse_gdbarch (par_state), copy); |
f2e8016f TT |
2972 | if (Class) |
2973 | { | |
d12307c1 PMR |
2974 | struct symbol *sym; |
2975 | ||
fe978cb0 | 2976 | yylval.theclass.theclass = Class; |
826f0041 TT |
2977 | sym = lookup_struct_typedef (copy, expression_context_block, 1); |
2978 | if (sym) | |
fe978cb0 | 2979 | yylval.theclass.type = SYMBOL_TYPE (sym); |
f2e8016f TT |
2980 | return CLASSNAME; |
2981 | } | |
2982 | } | |
2983 | ||
48e32051 TT |
2984 | /* Input names that aren't symbols but ARE valid hex numbers, when |
2985 | the input radix permits them, can be names or numbers depending | |
2986 | on the parse. Note we support radixes > 16 here. */ | |
d12307c1 | 2987 | if (!bsym.symbol |
48e32051 TT |
2988 | && ((copy[0] >= 'a' && copy[0] < 'a' + input_radix - 10) |
2989 | || (copy[0] >= 'A' && copy[0] < 'A' + input_radix - 10))) | |
2990 | { | |
2991 | YYSTYPE newlval; /* Its value is ignored. */ | |
410a0ff2 SDJ |
2992 | int hextype = parse_number (par_state, copy, yylval.sval.length, |
2993 | 0, &newlval); | |
d12307c1 | 2994 | |
48e32051 TT |
2995 | if (hextype == INT) |
2996 | { | |
d12307c1 | 2997 | yylval.ssym.sym = bsym; |
1993b719 | 2998 | yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL; |
48e32051 TT |
2999 | return NAME_OR_INT; |
3000 | } | |
3001 | } | |
3002 | ||
3003 | /* Any other kind of symbol */ | |
d12307c1 | 3004 | yylval.ssym.sym = bsym; |
1993b719 | 3005 | yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL; |
7322dca9 | 3006 | |
d12307c1 | 3007 | if (bsym.symbol == NULL |
410a0ff2 | 3008 | && parse_language (par_state)->la_language == language_cplus |
1993b719 | 3009 | && is_a_field_of_this.type == NULL |
3b7344d5 | 3010 | && lookup_minimal_symbol (copy, NULL, NULL).minsym == NULL) |
7322dca9 SW |
3011 | return UNKNOWN_CPP_NAME; |
3012 | ||
48e32051 TT |
3013 | return NAME; |
3014 | } | |
c906108c | 3015 | |
48e32051 | 3016 | /* Like classify_name, but used by the inner loop of the lexer, when a |
e234dfaf TT |
3017 | name might have already been seen. CONTEXT is the context type, or |
3018 | NULL if this is the first component of a name. */ | |
50af5481 | 3019 | |
48e32051 | 3020 | static int |
410a0ff2 SDJ |
3021 | classify_inner_name (struct parser_state *par_state, |
3022 | const struct block *block, struct type *context) | |
48e32051 | 3023 | { |
df54f8eb | 3024 | struct type *type; |
48e32051 TT |
3025 | char *copy; |
3026 | ||
e234dfaf | 3027 | if (context == NULL) |
59498c30 | 3028 | return classify_name (par_state, block, false, false); |
48e32051 | 3029 | |
e234dfaf | 3030 | type = check_typedef (context); |
3d567982 | 3031 | if (!type_aggregate_p (type)) |
50af5481 | 3032 | return ERROR; |
48e32051 | 3033 | |
e234dfaf | 3034 | copy = copy_name (yylval.ssym.stoken); |
4dcabcc2 DE |
3035 | /* N.B. We assume the symbol can only be in VAR_DOMAIN. */ |
3036 | yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block, VAR_DOMAIN); | |
f7e3ecae KS |
3037 | |
3038 | /* If no symbol was found, search for a matching base class named | |
3039 | COPY. This will allow users to enter qualified names of class members | |
3040 | relative to the `this' pointer. */ | |
d12307c1 | 3041 | if (yylval.ssym.sym.symbol == NULL) |
f7e3ecae | 3042 | { |
a07e3e18 | 3043 | struct type *base_type = cp_find_type_baseclass_by_name (type, copy); |
f7e3ecae KS |
3044 | |
3045 | if (base_type != NULL) | |
3046 | { | |
3047 | yylval.tsym.type = base_type; | |
3048 | return TYPENAME; | |
3049 | } | |
3050 | ||
3051 | return ERROR; | |
3052 | } | |
50af5481 | 3053 | |
d12307c1 | 3054 | switch (SYMBOL_CLASS (yylval.ssym.sym.symbol)) |
50af5481 JK |
3055 | { |
3056 | case LOC_BLOCK: | |
3057 | case LOC_LABEL: | |
f7e3ecae KS |
3058 | /* cp_lookup_nested_symbol might have accidentally found a constructor |
3059 | named COPY when we really wanted a base class of the same name. | |
3060 | Double-check this case by looking for a base class. */ | |
3061 | { | |
a07e3e18 | 3062 | struct type *base_type = cp_find_type_baseclass_by_name (type, copy); |
f7e3ecae KS |
3063 | |
3064 | if (base_type != NULL) | |
3065 | { | |
3066 | yylval.tsym.type = base_type; | |
3067 | return TYPENAME; | |
3068 | } | |
3069 | } | |
50af5481 | 3070 | return ERROR; |
48e32051 | 3071 | |
50af5481 | 3072 | case LOC_TYPEDEF: |
d12307c1 | 3073 | yylval.tsym.type = SYMBOL_TYPE (yylval.ssym.sym.symbol); |
50af5481 | 3074 | return TYPENAME; |
48e32051 | 3075 | |
50af5481 | 3076 | default: |
50af5481 JK |
3077 | return NAME; |
3078 | } | |
3079 | internal_error (__FILE__, __LINE__, _("not reached")); | |
48e32051 TT |
3080 | } |
3081 | ||
3082 | /* The outer level of a two-level lexer. This calls the inner lexer | |
3083 | to return tokens. It then either returns these tokens, or | |
3084 | aggregates them into a larger token. This lets us work around a | |
3085 | problem in our parsing approach, where the parser could not | |
3086 | distinguish between qualified names and qualified types at the | |
3087 | right point. | |
4d29c0a8 | 3088 | |
48e32051 TT |
3089 | This approach is still not ideal, because it mishandles template |
3090 | types. See the comment in lex_one_token for an example. However, | |
3091 | this is still an improvement over the earlier approach, and will | |
3092 | suffice until we move to better parsing technology. */ | |
4d29c0a8 | 3093 | |
48e32051 TT |
3094 | static int |
3095 | yylex (void) | |
3096 | { | |
3097 | token_and_value current; | |
b2f83c08 | 3098 | int first_was_coloncolon, last_was_coloncolon; |
e234dfaf | 3099 | struct type *context_type = NULL; |
b2f83c08 TT |
3100 | int last_to_examine, next_to_examine, checkpoint; |
3101 | const struct block *search_block; | |
59498c30 | 3102 | bool is_quoted_name, last_lex_was_structop; |
48e32051 | 3103 | |
5fe3f3e4 | 3104 | if (popping && !token_fifo.empty ()) |
b2f83c08 | 3105 | goto do_pop; |
48e32051 TT |
3106 | popping = 0; |
3107 | ||
59498c30 LS |
3108 | last_lex_was_structop = last_was_structop; |
3109 | ||
b2f83c08 TT |
3110 | /* Read the first token and decide what to do. Most of the |
3111 | subsequent code is C++-only; but also depends on seeing a "::" or | |
3112 | name-like token. */ | |
410a0ff2 | 3113 | current.token = lex_one_token (pstate, &is_quoted_name); |
48e32051 | 3114 | if (current.token == NAME) |
410a0ff2 | 3115 | current.token = classify_name (pstate, expression_context_block, |
59498c30 | 3116 | is_quoted_name, last_lex_was_structop); |
410a0ff2 | 3117 | if (parse_language (pstate)->la_language != language_cplus |
b2f83c08 TT |
3118 | || (current.token != TYPENAME && current.token != COLONCOLON |
3119 | && current.token != FILENAME)) | |
48e32051 TT |
3120 | return current.token; |
3121 | ||
b2f83c08 TT |
3122 | /* Read any sequence of alternating "::" and name-like tokens into |
3123 | the token FIFO. */ | |
3124 | current.value = yylval; | |
5fe3f3e4 | 3125 | token_fifo.push_back (current); |
b2f83c08 TT |
3126 | last_was_coloncolon = current.token == COLONCOLON; |
3127 | while (1) | |
3128 | { | |
59498c30 | 3129 | bool ignore; |
805e1f19 TT |
3130 | |
3131 | /* We ignore quoted names other than the very first one. | |
3132 | Subsequent ones do not have any special meaning. */ | |
410a0ff2 | 3133 | current.token = lex_one_token (pstate, &ignore); |
b2f83c08 | 3134 | current.value = yylval; |
5fe3f3e4 | 3135 | token_fifo.push_back (current); |
b2f83c08 TT |
3136 | |
3137 | if ((last_was_coloncolon && current.token != NAME) | |
3138 | || (!last_was_coloncolon && current.token != COLONCOLON)) | |
3139 | break; | |
3140 | last_was_coloncolon = !last_was_coloncolon; | |
3141 | } | |
3142 | popping = 1; | |
3143 | ||
3144 | /* We always read one extra token, so compute the number of tokens | |
3145 | to examine accordingly. */ | |
5fe3f3e4 | 3146 | last_to_examine = token_fifo.size () - 2; |
b2f83c08 TT |
3147 | next_to_examine = 0; |
3148 | ||
5fe3f3e4 | 3149 | current = token_fifo[next_to_examine]; |
b2f83c08 TT |
3150 | ++next_to_examine; |
3151 | ||
8268c778 | 3152 | name_obstack.clear (); |
b2f83c08 TT |
3153 | checkpoint = 0; |
3154 | if (current.token == FILENAME) | |
3155 | search_block = current.value.bval; | |
3156 | else if (current.token == COLONCOLON) | |
3157 | search_block = NULL; | |
3158 | else | |
e234dfaf | 3159 | { |
b2f83c08 TT |
3160 | gdb_assert (current.token == TYPENAME); |
3161 | search_block = expression_context_block; | |
3162 | obstack_grow (&name_obstack, current.value.sval.ptr, | |
3163 | current.value.sval.length); | |
3164 | context_type = current.value.tsym.type; | |
3165 | checkpoint = 1; | |
e234dfaf | 3166 | } |
b2f83c08 TT |
3167 | |
3168 | first_was_coloncolon = current.token == COLONCOLON; | |
3169 | last_was_coloncolon = first_was_coloncolon; | |
3170 | ||
3171 | while (next_to_examine <= last_to_examine) | |
48e32051 | 3172 | { |
5fe3f3e4 | 3173 | token_and_value next; |
48e32051 | 3174 | |
5fe3f3e4 | 3175 | next = token_fifo[next_to_examine]; |
b2f83c08 | 3176 | ++next_to_examine; |
48e32051 | 3177 | |
5fe3f3e4 | 3178 | if (next.token == NAME && last_was_coloncolon) |
48e32051 TT |
3179 | { |
3180 | int classification; | |
3181 | ||
5fe3f3e4 | 3182 | yylval = next.value; |
410a0ff2 SDJ |
3183 | classification = classify_inner_name (pstate, search_block, |
3184 | context_type); | |
48e32051 TT |
3185 | /* We keep going until we either run out of names, or until |
3186 | we have a qualified name which is not a type. */ | |
50af5481 | 3187 | if (classification != TYPENAME && classification != NAME) |
b2f83c08 TT |
3188 | break; |
3189 | ||
3190 | /* Accept up to this token. */ | |
3191 | checkpoint = next_to_examine; | |
48e32051 TT |
3192 | |
3193 | /* Update the partial name we are constructing. */ | |
e234dfaf | 3194 | if (context_type != NULL) |
48e32051 TT |
3195 | { |
3196 | /* We don't want to put a leading "::" into the name. */ | |
3197 | obstack_grow_str (&name_obstack, "::"); | |
3198 | } | |
5fe3f3e4 TT |
3199 | obstack_grow (&name_obstack, next.value.sval.ptr, |
3200 | next.value.sval.length); | |
48e32051 | 3201 | |
79f33898 | 3202 | yylval.sval.ptr = (const char *) obstack_base (&name_obstack); |
48e32051 TT |
3203 | yylval.sval.length = obstack_object_size (&name_obstack); |
3204 | current.value = yylval; | |
3205 | current.token = classification; | |
3206 | ||
3207 | last_was_coloncolon = 0; | |
4d29c0a8 | 3208 | |
e234dfaf TT |
3209 | if (classification == NAME) |
3210 | break; | |
3211 | ||
3212 | context_type = yylval.tsym.type; | |
48e32051 | 3213 | } |
5fe3f3e4 | 3214 | else if (next.token == COLONCOLON && !last_was_coloncolon) |
48e32051 TT |
3215 | last_was_coloncolon = 1; |
3216 | else | |
3217 | { | |
3218 | /* We've reached the end of the name. */ | |
48e32051 TT |
3219 | break; |
3220 | } | |
48e32051 TT |
3221 | } |
3222 | ||
b2f83c08 TT |
3223 | /* If we have a replacement token, install it as the first token in |
3224 | the FIFO, and delete the other constituent tokens. */ | |
3225 | if (checkpoint > 0) | |
48e32051 | 3226 | { |
224c3ddb SM |
3227 | current.value.sval.ptr |
3228 | = (const char *) obstack_copy0 (&expansion_obstack, | |
3229 | current.value.sval.ptr, | |
3230 | current.value.sval.length); | |
b2f83c08 | 3231 | |
5fe3f3e4 | 3232 | token_fifo[0] = current; |
b2f83c08 | 3233 | if (checkpoint > 1) |
5fe3f3e4 TT |
3234 | token_fifo.erase (token_fifo.begin () + 1, |
3235 | token_fifo.begin () + checkpoint); | |
48e32051 TT |
3236 | } |
3237 | ||
b2f83c08 | 3238 | do_pop: |
5fe3f3e4 TT |
3239 | current = token_fifo[0]; |
3240 | token_fifo.erase (token_fifo.begin ()); | |
48e32051 | 3241 | yylval = current.value; |
48e32051 | 3242 | return current.token; |
c906108c SS |
3243 | } |
3244 | ||
65d12d83 | 3245 | int |
410a0ff2 | 3246 | c_parse (struct parser_state *par_state) |
65d12d83 | 3247 | { |
7c8adf68 | 3248 | int result; |
410a0ff2 SDJ |
3249 | struct cleanup *back_to; |
3250 | ||
3251 | /* Setting up the parser state. */ | |
eae49211 | 3252 | scoped_restore pstate_restore = make_scoped_restore (&pstate); |
410a0ff2 SDJ |
3253 | gdb_assert (par_state != NULL); |
3254 | pstate = par_state; | |
3255 | ||
f6c2623e | 3256 | gdb::unique_xmalloc_ptr<struct macro_scope> macro_scope; |
7c8adf68 TT |
3257 | |
3258 | if (expression_context_block) | |
f6c2623e | 3259 | macro_scope = sal_macro_scope (find_pc_line (expression_context_pc, 0)); |
7c8adf68 | 3260 | else |
f6c2623e TT |
3261 | macro_scope = default_macro_scope (); |
3262 | if (! macro_scope) | |
3263 | macro_scope = user_macro_scope (); | |
3264 | ||
3265 | scoped_restore restore_macro_scope | |
3266 | = make_scoped_restore (&expression_macro_scope, macro_scope.get ()); | |
7c8adf68 TT |
3267 | |
3268 | /* Initialize macro expansion code. */ | |
3269 | obstack_init (&expansion_obstack); | |
3270 | gdb_assert (! macro_original_text); | |
f6c2623e TT |
3271 | /* Note that parsing (within yyparse) freely installs cleanups |
3272 | assuming they'll be run here (below). */ | |
3273 | back_to = make_cleanup (scan_macro_cleanup, 0); | |
7c8adf68 | 3274 | |
156d9eab TT |
3275 | scoped_restore restore_yydebug = make_scoped_restore (&yydebug, |
3276 | parser_debug); | |
92981e24 | 3277 | |
7c8adf68 | 3278 | /* Initialize some state used by the lexer. */ |
59498c30 | 3279 | last_was_structop = false; |
65d12d83 | 3280 | saw_name_at_eof = 0; |
7c8adf68 | 3281 | |
5fe3f3e4 | 3282 | token_fifo.clear (); |
48e32051 | 3283 | popping = 0; |
8268c778 | 3284 | name_obstack.clear (); |
48e32051 | 3285 | |
7c8adf68 TT |
3286 | result = yyparse (); |
3287 | do_cleanups (back_to); | |
410a0ff2 | 3288 | |
7c8adf68 | 3289 | return result; |
65d12d83 TT |
3290 | } |
3291 | ||
12c5175d MK |
3292 | #ifdef YYBISON |
3293 | ||
9507860e TT |
3294 | /* This is called via the YYPRINT macro when parser debugging is |
3295 | enabled. It prints a token's value. */ | |
3296 | ||
3297 | static void | |
3298 | c_print_token (FILE *file, int type, YYSTYPE value) | |
3299 | { | |
3300 | switch (type) | |
3301 | { | |
3302 | case INT: | |
66be918f PA |
3303 | parser_fprintf (file, "typed_val_int<%s, %s>", |
3304 | TYPE_SAFE_NAME (value.typed_val_int.type), | |
3305 | pulongest (value.typed_val_int.val)); | |
9507860e TT |
3306 | break; |
3307 | ||
3308 | case CHAR: | |
3309 | case STRING: | |
3310 | { | |
224c3ddb | 3311 | char *copy = (char *) alloca (value.tsval.length + 1); |
9507860e TT |
3312 | |
3313 | memcpy (copy, value.tsval.ptr, value.tsval.length); | |
3314 | copy[value.tsval.length] = '\0'; | |
3315 | ||
66be918f | 3316 | parser_fprintf (file, "tsval<type=%d, %s>", value.tsval.type, copy); |
9507860e TT |
3317 | } |
3318 | break; | |
3319 | ||
3320 | case NSSTRING: | |
3321 | case VARIABLE: | |
66be918f | 3322 | parser_fprintf (file, "sval<%s>", copy_name (value.sval)); |
9507860e TT |
3323 | break; |
3324 | ||
3325 | case TYPENAME: | |
66be918f PA |
3326 | parser_fprintf (file, "tsym<type=%s, name=%s>", |
3327 | TYPE_SAFE_NAME (value.tsym.type), | |
3328 | copy_name (value.tsym.stoken)); | |
9507860e TT |
3329 | break; |
3330 | ||
3331 | case NAME: | |
3332 | case UNKNOWN_CPP_NAME: | |
3333 | case NAME_OR_INT: | |
3334 | case BLOCKNAME: | |
66be918f PA |
3335 | parser_fprintf (file, "ssym<name=%s, sym=%s, field_of_this=%d>", |
3336 | copy_name (value.ssym.stoken), | |
3337 | (value.ssym.sym.symbol == NULL | |
3338 | ? "(null)" : SYMBOL_PRINT_NAME (value.ssym.sym.symbol)), | |
3339 | value.ssym.is_a_field_of_this); | |
9507860e TT |
3340 | break; |
3341 | ||
3342 | case FILENAME: | |
66be918f | 3343 | parser_fprintf (file, "bval<%s>", host_address_to_string (value.bval)); |
9507860e TT |
3344 | break; |
3345 | } | |
3346 | } | |
7c8adf68 | 3347 | |
12c5175d MK |
3348 | #endif |
3349 | ||
69d340c6 | 3350 | static void |
a121b7c1 | 3351 | yyerror (const char *msg) |
c906108c | 3352 | { |
665132f9 MS |
3353 | if (prev_lexptr) |
3354 | lexptr = prev_lexptr; | |
3355 | ||
69d340c6 | 3356 | error (_("A %s in expression, near `%s'."), msg, lexptr); |
c906108c | 3357 | } |