1 /* Print in infix form a struct expression.
3 Copyright (C) 1986-2018 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "expression.h"
26 #include "parser-defs.h"
27 #include "user-regs.h" /* For user_reg_map_regnum_to_name. */
36 print_expression (struct expression
*exp
, struct ui_file
*stream
)
40 print_subexp (exp
, &pc
, stream
, PREC_NULL
);
43 /* Print the subexpression of EXP that starts in position POS, on STREAM.
44 PREC is the precedence of the surrounding operator;
45 if the precedence of the main operator of this subexpression is less,
46 parentheses are needed here. */
49 print_subexp (struct expression
*exp
, int *pos
,
50 struct ui_file
*stream
, enum precedence prec
)
52 exp
->language_defn
->la_exp_desc
->print_subexp (exp
, pos
, stream
, prec
);
55 /* Standard implementation of print_subexp for use in language_defn
58 print_subexp_standard (struct expression
*exp
, int *pos
,
59 struct ui_file
*stream
, enum precedence prec
)
62 const struct op_print
*op_print_tab
;
66 int assign_modify
= 0;
67 enum exp_opcode opcode
;
68 enum precedence myprec
= PREC_NULL
;
69 /* Set to 1 for a right-associative operator. */
74 op_print_tab
= exp
->language_defn
->la_op_print_tab
;
76 opcode
= exp
->elts
[pc
].opcode
;
83 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
89 fputs_filtered (type_name_no_tag (exp
->elts
[pc
+ 1].type
), stream
);
90 fputs_filtered ("::", stream
);
91 nargs
= longest_to_int (exp
->elts
[pc
+ 2].longconst
);
92 (*pos
) += 4 + BYTES_TO_EXP_ELEM (nargs
+ 1);
93 fputs_filtered (&exp
->elts
[pc
+ 3].string
, stream
);
98 struct value_print_options opts
;
100 get_no_prettyformat_print_options (&opts
);
102 value_print (value_from_longest (exp
->elts
[pc
+ 1].type
,
103 exp
->elts
[pc
+ 2].longconst
),
110 struct value_print_options opts
;
112 get_no_prettyformat_print_options (&opts
);
114 value_print (value_from_contents (exp
->elts
[pc
+ 1].type
,
115 exp
->elts
[pc
+ 2].floatconst
),
122 const struct block
*b
;
125 b
= exp
->elts
[pc
+ 1].block
;
127 && BLOCK_FUNCTION (b
) != NULL
128 && SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b
)) != NULL
)
130 fputs_filtered (SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b
)), stream
);
131 fputs_filtered ("::", stream
);
133 fputs_filtered (SYMBOL_PRINT_NAME (exp
->elts
[pc
+ 2].symbol
), stream
);
137 case OP_VAR_MSYM_VALUE
:
140 fputs_filtered (MSYMBOL_PRINT_NAME (exp
->elts
[pc
+ 2].msymbol
), stream
);
144 case OP_FUNC_STATIC_VAR
:
146 tem
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
147 (*pos
) += 3 + BYTES_TO_EXP_ELEM (tem
+ 1);
148 fputs_filtered (&exp
->elts
[pc
+ 1].string
, stream
);
152 case OP_VAR_ENTRY_VALUE
:
155 fprintf_filtered (stream
, "%s@entry",
156 SYMBOL_PRINT_NAME (exp
->elts
[pc
+ 1].symbol
));
162 fprintf_filtered (stream
, "$%d",
163 longest_to_int (exp
->elts
[pc
+ 1].longconst
));
168 const char *name
= &exp
->elts
[pc
+ 2].string
;
170 (*pos
) += 3 + BYTES_TO_EXP_ELEM (exp
->elts
[pc
+ 1].longconst
+ 1);
171 fprintf_filtered (stream
, "$%s", name
);
177 fprintf_filtered (stream
, "%s",
178 longest_to_int (exp
->elts
[pc
+ 1].longconst
)
184 fprintf_filtered (stream
, "$%s",
185 internalvar_name (exp
->elts
[pc
+ 1].internalvar
));
189 case OP_F77_UNDETERMINED_ARGLIST
:
191 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
192 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
193 fputs_filtered (" (", stream
);
194 for (tem
= 0; tem
< nargs
; tem
++)
197 fputs_filtered (", ", stream
);
198 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
200 fputs_filtered (")", stream
);
204 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
205 (*pos
) += 3 + BYTES_TO_EXP_ELEM (nargs
+ 1);
206 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
211 struct value_print_options opts
;
213 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
214 (*pos
) += 3 + BYTES_TO_EXP_ELEM (nargs
+ 1);
215 /* LA_PRINT_STRING will print using the current repeat count threshold.
216 If necessary, we can temporarily set it to zero, or pass it as an
217 additional parameter to LA_PRINT_STRING. -fnf */
218 get_user_print_options (&opts
);
219 LA_PRINT_STRING (stream
, builtin_type (exp
->gdbarch
)->builtin_char
,
220 (gdb_byte
*) &exp
->elts
[pc
+ 2].string
, nargs
,
225 case OP_OBJC_NSSTRING
: /* Objective-C Foundation Class
226 NSString constant. */
228 struct value_print_options opts
;
230 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
231 (*pos
) += 3 + BYTES_TO_EXP_ELEM (nargs
+ 1);
232 fputs_filtered ("@\"", stream
);
233 get_user_print_options (&opts
);
234 LA_PRINT_STRING (stream
, builtin_type (exp
->gdbarch
)->builtin_char
,
235 (gdb_byte
*) &exp
->elts
[pc
+ 2].string
, nargs
,
237 fputs_filtered ("\"", stream
);
241 case OP_OBJC_MSGCALL
:
242 { /* Objective C message (method) call. */
246 nargs
= longest_to_int (exp
->elts
[pc
+ 2].longconst
);
247 fprintf_unfiltered (stream
, "[");
248 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
249 if (0 == target_read_string (exp
->elts
[pc
+ 1].longconst
,
250 &selector
, 1024, NULL
))
252 error (_("bad selector"));
259 s
= (char *) alloca (strlen (selector
) + 1);
260 strcpy (s
, selector
);
261 for (tem
= 0; tem
< nargs
; tem
++)
263 nextS
= strchr (s
, ':');
264 gdb_assert (nextS
); /* Make sure we found ':'. */
266 fprintf_unfiltered (stream
, " %s: ", s
);
268 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
273 fprintf_unfiltered (stream
, " %s", selector
);
275 fprintf_unfiltered (stream
, "]");
276 /* "selector" was malloc'd by target_read_string. Free it. */
283 nargs
= longest_to_int (exp
->elts
[pc
+ 2].longconst
);
284 nargs
-= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
287 if (exp
->elts
[pc
+ 4].opcode
== OP_LONG
288 && exp
->elts
[pc
+ 5].type
289 == builtin_type (exp
->gdbarch
)->builtin_char
290 && exp
->language_defn
->la_language
== language_c
)
292 /* Attempt to print C character arrays using string syntax.
293 Walk through the args, picking up one character from each
294 of the OP_LONG expression elements. If any array element
295 does not match our expection of what we should find for
296 a simple string, revert back to array printing. Note that
297 the last expression element is an explicit null terminator
298 byte, which doesn't get printed. */
299 tempstr
= (char *) alloca (nargs
);
303 if (exp
->elts
[pc
].opcode
!= OP_LONG
304 || exp
->elts
[pc
+ 1].type
305 != builtin_type (exp
->gdbarch
)->builtin_char
)
307 /* Not a simple array of char, use regular array
315 longest_to_int (exp
->elts
[pc
+ 2].longconst
);
322 struct value_print_options opts
;
324 get_user_print_options (&opts
);
325 LA_PRINT_STRING (stream
, builtin_type (exp
->gdbarch
)->builtin_char
,
326 (gdb_byte
*) tempstr
, nargs
- 1, NULL
, 0, &opts
);
331 fputs_filtered (" {", stream
);
332 for (tem
= 0; tem
< nargs
; tem
++)
336 fputs_filtered (", ", stream
);
338 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
340 fputs_filtered ("}", stream
);
345 if ((int) prec
> (int) PREC_COMMA
)
346 fputs_filtered ("(", stream
);
347 /* Print the subexpressions, forcing parentheses
348 around any binary operations within them.
349 This is more parentheses than are strictly necessary,
350 but it looks clearer. */
351 print_subexp (exp
, pos
, stream
, PREC_HYPER
);
352 fputs_filtered (" ? ", stream
);
353 print_subexp (exp
, pos
, stream
, PREC_HYPER
);
354 fputs_filtered (" : ", stream
);
355 print_subexp (exp
, pos
, stream
, PREC_HYPER
);
356 if ((int) prec
> (int) PREC_COMMA
)
357 fputs_filtered (")", stream
);
361 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
362 fputs_filtered ("(", stream
);
363 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
364 fputs_filtered (opcode
== TERNOP_SLICE
? " : " : " UP ", stream
);
365 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
366 fputs_filtered (")", stream
);
369 case STRUCTOP_STRUCT
:
370 tem
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
371 (*pos
) += 3 + BYTES_TO_EXP_ELEM (tem
+ 1);
372 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
373 fputs_filtered (".", stream
);
374 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
377 /* Will not occur for Modula-2. */
379 tem
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
380 (*pos
) += 3 + BYTES_TO_EXP_ELEM (tem
+ 1);
381 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
382 fputs_filtered ("->", stream
);
383 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
386 case STRUCTOP_MEMBER
:
387 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
388 fputs_filtered (".*", stream
);
389 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
393 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
394 fputs_filtered ("->*", stream
);
395 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
398 case BINOP_SUBSCRIPT
:
399 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
400 fputs_filtered ("[", stream
);
401 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
402 fputs_filtered ("]", stream
);
405 case UNOP_POSTINCREMENT
:
406 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
407 fputs_filtered ("++", stream
);
410 case UNOP_POSTDECREMENT
:
411 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
412 fputs_filtered ("--", stream
);
417 if ((int) prec
> (int) PREC_PREFIX
)
418 fputs_filtered ("(", stream
);
419 fputs_filtered ("(", stream
);
420 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
421 fputs_filtered (") ", stream
);
422 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
423 if ((int) prec
> (int) PREC_PREFIX
)
424 fputs_filtered (")", stream
);
428 if ((int) prec
> (int) PREC_PREFIX
)
429 fputs_filtered ("(", stream
);
430 fputs_filtered ("(", stream
);
431 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
432 fputs_filtered (") ", stream
);
433 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
434 if ((int) prec
> (int) PREC_PREFIX
)
435 fputs_filtered (")", stream
);
438 case UNOP_DYNAMIC_CAST
:
439 case UNOP_REINTERPRET_CAST
:
440 fputs_filtered (opcode
== UNOP_DYNAMIC_CAST
? "dynamic_cast"
441 : "reinterpret_cast", stream
);
442 fputs_filtered ("<", stream
);
443 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
444 fputs_filtered ("> (", stream
);
445 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
446 fputs_filtered (")", stream
);
451 if ((int) prec
> (int) PREC_PREFIX
)
452 fputs_filtered ("(", stream
);
453 if (TYPE_CODE (exp
->elts
[pc
+ 1].type
) == TYPE_CODE_FUNC
454 && exp
->elts
[pc
+ 3].opcode
== OP_LONG
)
456 struct value_print_options opts
;
458 /* We have a minimal symbol fn, probably. It's encoded
459 as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address).
460 Swallow the OP_LONG (including both its opcodes); ignore
461 its type; print the value in the type of the MEMVAL. */
463 val
= value_at_lazy (exp
->elts
[pc
+ 1].type
,
464 (CORE_ADDR
) exp
->elts
[pc
+ 5].longconst
);
465 get_no_prettyformat_print_options (&opts
);
466 value_print (val
, stream
, &opts
);
470 fputs_filtered ("{", stream
);
471 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
472 fputs_filtered ("} ", stream
);
473 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
475 if ((int) prec
> (int) PREC_PREFIX
)
476 fputs_filtered (")", stream
);
479 case UNOP_MEMVAL_TYPE
:
480 if ((int) prec
> (int) PREC_PREFIX
)
481 fputs_filtered ("(", stream
);
482 fputs_filtered ("{", stream
);
483 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
484 fputs_filtered ("} ", stream
);
485 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
486 if ((int) prec
> (int) PREC_PREFIX
)
487 fputs_filtered (")", stream
);
490 case BINOP_ASSIGN_MODIFY
:
491 opcode
= exp
->elts
[pc
+ 1].opcode
;
493 myprec
= PREC_ASSIGN
;
497 for (tem
= 0; op_print_tab
[tem
].opcode
!= OP_NULL
; tem
++)
498 if (op_print_tab
[tem
].opcode
== opcode
)
500 op_str
= op_print_tab
[tem
].string
;
503 if (op_print_tab
[tem
].opcode
!= opcode
)
504 /* Not found; don't try to keep going because we don't know how
505 to interpret further elements. */
506 error (_("Invalid expression"));
513 if (exp
->language_defn
->la_name_of_this
)
514 fputs_filtered (exp
->language_defn
->la_name_of_this
, stream
);
516 fprintf_filtered (stream
, _("<language %s has no 'this'>"),
517 exp
->language_defn
->la_name
);
522 case MULTI_SUBSCRIPT
:
524 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
525 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
526 fprintf_unfiltered (stream
, " [");
527 for (tem
= 0; tem
< nargs
; tem
++)
530 fprintf_unfiltered (stream
, ", ");
531 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
533 fprintf_unfiltered (stream
, "]");
538 fprintf_unfiltered (stream
, "VAL(");
539 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
540 fprintf_unfiltered (stream
, ",");
541 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
542 fprintf_unfiltered (stream
, ")");
547 type_instance_flags flags
548 = (type_instance_flag_value
) longest_to_int (exp
->elts
[pc
+ 1].longconst
);
549 LONGEST count
= exp
->elts
[pc
+ 2].longconst
;
555 fputs_unfiltered ("TypeInstance(", stream
);
558 type_print (exp
->elts
[(*pos
)++].type
, "", stream
, 0);
560 fputs_unfiltered (",", stream
);
562 fputs_unfiltered (",", stream
);
563 /* Ending COUNT and ending TYPE_INSTANCE. */
565 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
567 if (flags
& TYPE_INSTANCE_FLAG_CONST
)
568 fputs_unfiltered (",const", stream
);
569 if (flags
& TYPE_INSTANCE_FLAG_VOLATILE
)
570 fputs_unfiltered (",volatile", stream
);
572 fputs_unfiltered (")", stream
);
578 enum range_type range_type
;
580 range_type
= (enum range_type
)
581 longest_to_int (exp
->elts
[pc
+ 1].longconst
);
584 fputs_filtered ("RANGE(", stream
);
585 if (range_type
== HIGH_BOUND_DEFAULT
586 || range_type
== NONE_BOUND_DEFAULT
)
587 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
588 fputs_filtered ("..", stream
);
589 if (range_type
== LOW_BOUND_DEFAULT
590 || range_type
== NONE_BOUND_DEFAULT
)
591 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
592 fputs_filtered (")", stream
);
600 for (tem
= 0; op_print_tab
[tem
].opcode
!= OP_NULL
; tem
++)
601 if (op_print_tab
[tem
].opcode
== opcode
)
603 op_str
= op_print_tab
[tem
].string
;
604 myprec
= op_print_tab
[tem
].precedence
;
605 assoc
= op_print_tab
[tem
].right_assoc
;
608 if (op_print_tab
[tem
].opcode
!= opcode
)
609 /* Not found; don't try to keep going because we don't know how
610 to interpret further elements. For example, this happens
611 if opcode is OP_TYPE. */
612 error (_("Invalid expression"));
615 /* Note that PREC_BUILTIN will always emit parentheses. */
616 if ((int) myprec
< (int) prec
)
617 fputs_filtered ("(", stream
);
618 if ((int) opcode
> (int) BINOP_END
)
622 /* Unary postfix operator. */
623 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
624 fputs_filtered (op_str
, stream
);
628 /* Unary prefix operator. */
629 fputs_filtered (op_str
, stream
);
630 if (myprec
== PREC_BUILTIN_FUNCTION
)
631 fputs_filtered ("(", stream
);
632 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
633 if (myprec
== PREC_BUILTIN_FUNCTION
)
634 fputs_filtered (")", stream
);
639 /* Binary operator. */
640 /* Print left operand.
641 If operator is right-associative,
642 increment precedence for this operand. */
643 print_subexp (exp
, pos
, stream
,
644 (enum precedence
) ((int) myprec
+ assoc
));
645 /* Print the operator itself. */
647 fprintf_filtered (stream
, " %s= ", op_str
);
648 else if (op_str
[0] == ',')
649 fprintf_filtered (stream
, "%s ", op_str
);
651 fprintf_filtered (stream
, " %s ", op_str
);
652 /* Print right operand.
653 If operator is left-associative,
654 increment precedence for this operand. */
655 print_subexp (exp
, pos
, stream
,
656 (enum precedence
) ((int) myprec
+ !assoc
));
659 if ((int) myprec
< (int) prec
)
660 fputs_filtered (")", stream
);
663 /* Return the operator corresponding to opcode OP as
664 a string. NULL indicates that the opcode was not found in the
665 current language table. */
667 op_string (enum exp_opcode op
)
670 const struct op_print
*op_print_tab
;
672 op_print_tab
= current_language
->la_op_print_tab
;
673 for (tem
= 0; op_print_tab
[tem
].opcode
!= OP_NULL
; tem
++)
674 if (op_print_tab
[tem
].opcode
== op
)
675 return op_print_tab
[tem
].string
;
679 /* Support for dumping the raw data from expressions in a human readable
682 static int dump_subexp_body (struct expression
*exp
, struct ui_file
*, int);
684 /* Name for OPCODE, when it appears in expression EXP. */
687 op_name (struct expression
*exp
, enum exp_opcode opcode
)
689 return exp
->language_defn
->la_exp_desc
->op_name (opcode
);
692 /* Default name for the standard operator OPCODE (i.e., one defined in
693 the definition of enum exp_opcode). */
696 op_name_standard (enum exp_opcode opcode
)
704 xsnprintf (buf
, sizeof (buf
), "<unknown %d>", opcode
);
710 #include "std-operator.def"
715 /* Print a raw dump of expression EXP to STREAM.
716 NOTE, if non-NULL, is printed as extra explanatory text. */
719 dump_raw_expression (struct expression
*exp
, struct ui_file
*stream
,
726 fprintf_filtered (stream
, "Dump of expression @ ");
727 gdb_print_host_address (exp
, stream
);
729 fprintf_filtered (stream
, ", %s:", note
);
730 fprintf_filtered (stream
, "\n\tLanguage %s, %d elements, %ld bytes each.\n",
731 exp
->language_defn
->la_name
, exp
->nelts
,
732 (long) sizeof (union exp_element
));
733 fprintf_filtered (stream
, "\t%5s %20s %16s %s\n", "Index", "Opcode",
734 "Hex Value", "String Value");
735 for (elt
= 0; elt
< exp
->nelts
; elt
++)
737 fprintf_filtered (stream
, "\t%5d ", elt
);
739 const char *opcode_name
= op_name (exp
, exp
->elts
[elt
].opcode
);
740 fprintf_filtered (stream
, "%20s ", opcode_name
);
742 print_longest (stream
, 'd', 0, exp
->elts
[elt
].longconst
);
743 fprintf_filtered (stream
, " ");
745 for (eltscan
= (char *) &exp
->elts
[elt
],
746 eltsize
= sizeof (union exp_element
);
750 fprintf_filtered (stream
, "%c",
751 isprint (*eltscan
) ? (*eltscan
& 0xFF) : '.');
753 fprintf_filtered (stream
, "\n");
757 /* Dump the subexpression of prefix expression EXP whose operator is at
758 position ELT onto STREAM. Returns the position of the next
759 subexpression in EXP. */
762 dump_subexp (struct expression
*exp
, struct ui_file
*stream
, int elt
)
764 static int indent
= 0;
767 fprintf_filtered (stream
, "\n");
768 fprintf_filtered (stream
, "\t%5d ", elt
);
770 for (i
= 1; i
<= indent
; i
++)
771 fprintf_filtered (stream
, " ");
774 fprintf_filtered (stream
, "%-20s ", op_name (exp
, exp
->elts
[elt
].opcode
));
776 elt
= dump_subexp_body (exp
, stream
, elt
);
783 /* Dump the operands of prefix expression EXP whose opcode is at
784 position ELT onto STREAM. Returns the position of the next
785 subexpression in EXP. */
788 dump_subexp_body (struct expression
*exp
, struct ui_file
*stream
, int elt
)
790 return exp
->language_defn
->la_exp_desc
->dump_subexp_body (exp
, stream
, elt
);
793 /* Default value for subexp_body in exp_descriptor vector. */
796 dump_subexp_body_standard (struct expression
*exp
,
797 struct ui_file
*stream
, int elt
)
799 int opcode
= exp
->elts
[elt
++].opcode
;
805 elt
= dump_subexp (exp
, stream
, elt
);
815 case BINOP_LOGICAL_AND
:
816 case BINOP_LOGICAL_OR
:
817 case BINOP_BITWISE_AND
:
818 case BINOP_BITWISE_IOR
:
819 case BINOP_BITWISE_XOR
:
829 case BINOP_SUBSCRIPT
:
834 case BINOP_ASSIGN_MODIFY
:
838 case STRUCTOP_MEMBER
:
840 elt
= dump_subexp (exp
, stream
, elt
);
843 case UNOP_LOGICAL_NOT
:
844 case UNOP_COMPLEMENT
:
847 case UNOP_PREINCREMENT
:
848 case UNOP_POSTINCREMENT
:
849 case UNOP_PREDECREMENT
:
850 case UNOP_POSTDECREMENT
:
863 elt
= dump_subexp (exp
, stream
, elt
);
866 fprintf_filtered (stream
, "Type @");
867 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
868 fprintf_filtered (stream
, " (");
869 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
870 fprintf_filtered (stream
, "), value %ld (0x%lx)",
871 (long) exp
->elts
[elt
+ 1].longconst
,
872 (long) exp
->elts
[elt
+ 1].longconst
);
876 fprintf_filtered (stream
, "Type @");
877 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
878 fprintf_filtered (stream
, " (");
879 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
880 fprintf_filtered (stream
, "), value ");
881 print_floating (exp
->elts
[elt
+ 1].floatconst
,
882 exp
->elts
[elt
].type
, stream
);
886 fprintf_filtered (stream
, "Block @");
887 gdb_print_host_address (exp
->elts
[elt
].block
, stream
);
888 fprintf_filtered (stream
, ", symbol @");
889 gdb_print_host_address (exp
->elts
[elt
+ 1].symbol
, stream
);
890 fprintf_filtered (stream
, " (%s)",
891 SYMBOL_PRINT_NAME (exp
->elts
[elt
+ 1].symbol
));
894 case OP_VAR_MSYM_VALUE
:
895 fprintf_filtered (stream
, "Objfile @");
896 gdb_print_host_address (exp
->elts
[elt
].objfile
, stream
);
897 fprintf_filtered (stream
, ", msymbol @");
898 gdb_print_host_address (exp
->elts
[elt
+ 1].msymbol
, stream
);
899 fprintf_filtered (stream
, " (%s)",
900 MSYMBOL_PRINT_NAME (exp
->elts
[elt
+ 1].msymbol
));
903 case OP_VAR_ENTRY_VALUE
:
904 fprintf_filtered (stream
, "Entry value of symbol @");
905 gdb_print_host_address (exp
->elts
[elt
].symbol
, stream
);
906 fprintf_filtered (stream
, " (%s)",
907 SYMBOL_PRINT_NAME (exp
->elts
[elt
].symbol
));
911 fprintf_filtered (stream
, "History element %ld",
912 (long) exp
->elts
[elt
].longconst
);
916 fprintf_filtered (stream
, "Register $%s", &exp
->elts
[elt
+ 1].string
);
917 elt
+= 3 + BYTES_TO_EXP_ELEM (exp
->elts
[elt
].longconst
+ 1);
920 fprintf_filtered (stream
, "Internal var @");
921 gdb_print_host_address (exp
->elts
[elt
].internalvar
, stream
);
922 fprintf_filtered (stream
, " (%s)",
923 internalvar_name (exp
->elts
[elt
].internalvar
));
927 case OP_F77_UNDETERMINED_ARGLIST
:
931 nargs
= longest_to_int (exp
->elts
[elt
].longconst
);
933 fprintf_filtered (stream
, "Number of args: %d", nargs
);
936 for (i
= 1; i
<= nargs
+ 1; i
++)
937 elt
= dump_subexp (exp
, stream
, elt
);
945 lower
= longest_to_int (exp
->elts
[elt
].longconst
);
946 upper
= longest_to_int (exp
->elts
[elt
+ 1].longconst
);
948 fprintf_filtered (stream
, "Bounds [%d:%d]", lower
, upper
);
951 for (i
= 1; i
<= upper
- lower
+ 1; i
++)
952 elt
= dump_subexp (exp
, stream
, elt
);
955 case UNOP_DYNAMIC_CAST
:
956 case UNOP_REINTERPRET_CAST
:
958 case UNOP_MEMVAL_TYPE
:
959 fprintf_filtered (stream
, " (");
960 elt
= dump_subexp (exp
, stream
, elt
);
961 fprintf_filtered (stream
, ")");
962 elt
= dump_subexp (exp
, stream
, elt
);
966 fprintf_filtered (stream
, "Type @");
967 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
968 fprintf_filtered (stream
, " (");
969 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
970 fprintf_filtered (stream
, ")");
971 elt
= dump_subexp (exp
, stream
, elt
+ 2);
974 fprintf_filtered (stream
, "Type @");
975 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
976 fprintf_filtered (stream
, " (");
977 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
978 fprintf_filtered (stream
, ")");
983 fprintf_filtered (stream
, "Typeof (");
984 elt
= dump_subexp (exp
, stream
, elt
);
985 fprintf_filtered (stream
, ")");
988 fprintf_filtered (stream
, "typeid (");
989 elt
= dump_subexp (exp
, stream
, elt
);
990 fprintf_filtered (stream
, ")");
992 case STRUCTOP_STRUCT
:
998 len
= longest_to_int (exp
->elts
[elt
].longconst
);
999 elem_name
= &exp
->elts
[elt
+ 1].string
;
1001 fprintf_filtered (stream
, "Element name: `%.*s'", len
, elem_name
);
1002 elt
= dump_subexp (exp
, stream
, elt
+ 3 + BYTES_TO_EXP_ELEM (len
+ 1));
1010 fprintf_filtered (stream
, "Type @");
1011 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
1012 fprintf_filtered (stream
, " (");
1013 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
1014 fprintf_filtered (stream
, ") ");
1016 len
= longest_to_int (exp
->elts
[elt
+ 1].longconst
);
1017 elem_name
= &exp
->elts
[elt
+ 2].string
;
1019 fprintf_filtered (stream
, "Field name: `%.*s'", len
, elem_name
);
1020 elt
+= 4 + BYTES_TO_EXP_ELEM (len
+ 1);
1024 case OP_FUNC_STATIC_VAR
:
1026 int len
= longest_to_int (exp
->elts
[elt
].longconst
);
1027 const char *var_name
= &exp
->elts
[elt
+ 1].string
;
1028 fprintf_filtered (stream
, "Field name: `%.*s'", len
, var_name
);
1029 elt
+= 3 + BYTES_TO_EXP_ELEM (len
+ 1);
1035 type_instance_flags flags
1036 = (type_instance_flag_value
) longest_to_int (exp
->elts
[elt
++].longconst
);
1037 LONGEST len
= exp
->elts
[elt
++].longconst
;
1038 fprintf_filtered (stream
, "%s TypeInstance: ", plongest (len
));
1041 fprintf_filtered (stream
, "Type @");
1042 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
1043 fprintf_filtered (stream
, " (");
1044 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
1045 fprintf_filtered (stream
, ")");
1048 fputs_filtered (", ", stream
);
1051 fprintf_filtered (stream
, " Flags: %s (", hex_string (flags
));
1053 auto print_one
= [&] (const char *mod
)
1056 fputs_filtered (" ", stream
);
1058 fprintf_filtered (stream
, "%s", mod
);
1060 if (flags
& TYPE_INSTANCE_FLAG_CONST
)
1061 print_one ("const");
1062 if (flags
& TYPE_INSTANCE_FLAG_VOLATILE
)
1063 print_one ("volatile");
1064 fprintf_filtered (stream
, ")");
1066 /* Ending LEN and ending TYPE_INSTANCE. */
1068 elt
= dump_subexp (exp
, stream
, elt
);
1073 LONGEST len
= exp
->elts
[elt
].longconst
;
1074 LONGEST type
= exp
->elts
[elt
+ 1].longconst
;
1076 fprintf_filtered (stream
, "Language-specific string type: %s",
1082 /* Skip string content. */
1083 elt
+= BYTES_TO_EXP_ELEM (len
);
1085 /* Skip length and ending OP_STRING. */
1091 enum range_type range_type
;
1093 range_type
= (enum range_type
)
1094 longest_to_int (exp
->elts
[elt
].longconst
);
1099 case BOTH_BOUND_DEFAULT
:
1100 fputs_filtered ("Range '..'", stream
);
1102 case LOW_BOUND_DEFAULT
:
1103 fputs_filtered ("Range '..EXP'", stream
);
1105 case HIGH_BOUND_DEFAULT
:
1106 fputs_filtered ("Range 'EXP..'", stream
);
1108 case NONE_BOUND_DEFAULT
:
1109 fputs_filtered ("Range 'EXP..EXP'", stream
);
1112 fputs_filtered ("Invalid Range!", stream
);
1116 if (range_type
== HIGH_BOUND_DEFAULT
1117 || range_type
== NONE_BOUND_DEFAULT
)
1118 elt
= dump_subexp (exp
, stream
, elt
);
1119 if (range_type
== LOW_BOUND_DEFAULT
1120 || range_type
== NONE_BOUND_DEFAULT
)
1121 elt
= dump_subexp (exp
, stream
, elt
);
1127 case MULTI_SUBSCRIPT
:
1133 fprintf_filtered (stream
, "Unknown format");
1140 dump_prefix_expression (struct expression
*exp
, struct ui_file
*stream
)
1144 fprintf_filtered (stream
, "Dump of expression @ ");
1145 gdb_print_host_address (exp
, stream
);
1146 fputs_filtered (", after conversion to prefix form:\nExpression: `", stream
);
1147 print_expression (exp
, stream
);
1148 fprintf_filtered (stream
, "'\n\tLanguage %s, %d elements, %ld bytes each.\n",
1149 exp
->language_defn
->la_name
, exp
->nelts
,
1150 (long) sizeof (union exp_element
));
1151 fputs_filtered ("\n", stream
);
1153 for (elt
= 0; elt
< exp
->nelts
;)
1154 elt
= dump_subexp (exp
, stream
, elt
);
1155 fputs_filtered ("\n", stream
);