1 /* Print in infix form a struct expression.
3 Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
4 1998, 1999, 2000, 2003, 2007, 2008, 2009, 2010, 2011
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "expression.h"
28 #include "parser-defs.h"
29 #include "user-regs.h" /* For user_reg_map_regnum_to_name. */
31 #include "gdb_string.h"
34 #include "gdb_assert.h"
42 print_expression (struct expression
*exp
, struct ui_file
*stream
)
46 print_subexp (exp
, &pc
, stream
, PREC_NULL
);
49 /* Print the subexpression of EXP that starts in position POS, on STREAM.
50 PREC is the precedence of the surrounding operator;
51 if the precedence of the main operator of this subexpression is less,
52 parentheses are needed here. */
55 print_subexp (struct expression
*exp
, int *pos
,
56 struct ui_file
*stream
, enum precedence prec
)
58 exp
->language_defn
->la_exp_desc
->print_subexp (exp
, pos
, stream
, prec
);
61 /* Standard implementation of print_subexp for use in language_defn
64 print_subexp_standard (struct expression
*exp
, int *pos
,
65 struct ui_file
*stream
, enum precedence prec
)
68 const struct op_print
*op_print_tab
;
72 int assign_modify
= 0;
73 enum exp_opcode opcode
;
74 enum precedence myprec
= PREC_NULL
;
75 /* Set to 1 for a right-associative operator. */
80 op_print_tab
= exp
->language_defn
->la_op_print_tab
;
82 opcode
= exp
->elts
[pc
].opcode
;
90 fputs_filtered (type_name_no_tag (exp
->elts
[pc
+ 1].type
), stream
);
91 fputs_filtered ("::", stream
);
92 nargs
= longest_to_int (exp
->elts
[pc
+ 2].longconst
);
93 (*pos
) += 4 + BYTES_TO_EXP_ELEM (nargs
+ 1);
94 fputs_filtered (&exp
->elts
[pc
+ 3].string
, stream
);
99 struct value_print_options opts
;
101 get_raw_print_options (&opts
);
103 value_print (value_from_longest (exp
->elts
[pc
+ 1].type
,
104 exp
->elts
[pc
+ 2].longconst
),
111 struct value_print_options opts
;
113 get_raw_print_options (&opts
);
115 value_print (value_from_double (exp
->elts
[pc
+ 1].type
,
116 exp
->elts
[pc
+ 2].doubleconst
),
126 b
= exp
->elts
[pc
+ 1].block
;
128 && BLOCK_FUNCTION (b
) != NULL
129 && SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b
)) != NULL
)
131 fputs_filtered (SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b
)), stream
);
132 fputs_filtered ("::", stream
);
134 fputs_filtered (SYMBOL_PRINT_NAME (exp
->elts
[pc
+ 2].symbol
), stream
);
140 fprintf_filtered (stream
, "$%d",
141 longest_to_int (exp
->elts
[pc
+ 1].longconst
));
146 const char *name
= &exp
->elts
[pc
+ 2].string
;
148 (*pos
) += 3 + BYTES_TO_EXP_ELEM (exp
->elts
[pc
+ 1].longconst
+ 1);
149 fprintf_filtered (stream
, "$%s", name
);
155 fprintf_filtered (stream
, "%s",
156 longest_to_int (exp
->elts
[pc
+ 1].longconst
)
162 fprintf_filtered (stream
, "$%s",
163 internalvar_name (exp
->elts
[pc
+ 1].internalvar
));
168 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
169 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
170 fputs_filtered (" (", stream
);
171 for (tem
= 0; tem
< nargs
; tem
++)
174 fputs_filtered (", ", stream
);
175 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
177 fputs_filtered (")", stream
);
181 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
182 (*pos
) += 3 + BYTES_TO_EXP_ELEM (nargs
+ 1);
183 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
188 struct value_print_options opts
;
190 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
191 (*pos
) += 3 + BYTES_TO_EXP_ELEM (nargs
+ 1);
192 /* LA_PRINT_STRING will print using the current repeat count threshold.
193 If necessary, we can temporarily set it to zero, or pass it as an
194 additional parameter to LA_PRINT_STRING. -fnf */
195 get_user_print_options (&opts
);
196 LA_PRINT_STRING (stream
, builtin_type (exp
->gdbarch
)->builtin_char
,
197 &exp
->elts
[pc
+ 2].string
, nargs
, NULL
, 0, &opts
);
202 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
204 += 3 + BYTES_TO_EXP_ELEM ((nargs
+ HOST_CHAR_BIT
- 1) / HOST_CHAR_BIT
);
205 fprintf_unfiltered (stream
, "B'<unimplemented>'");
208 case OP_OBJC_NSSTRING
: /* Objective-C Foundation Class
209 NSString constant. */
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 fputs_filtered ("@\"", stream
);
216 get_user_print_options (&opts
);
217 LA_PRINT_STRING (stream
, builtin_type (exp
->gdbarch
)->builtin_char
,
218 &exp
->elts
[pc
+ 2].string
, nargs
, NULL
, 0, &opts
);
219 fputs_filtered ("\"", stream
);
223 case OP_OBJC_MSGCALL
:
224 { /* Objective C message (method) call. */
228 nargs
= longest_to_int (exp
->elts
[pc
+ 2].longconst
);
229 fprintf_unfiltered (stream
, "[");
230 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
231 if (0 == target_read_string (exp
->elts
[pc
+ 1].longconst
,
232 &selector
, 1024, NULL
))
234 error (_("bad selector"));
241 s
= alloca (strlen (selector
) + 1);
242 strcpy (s
, selector
);
243 for (tem
= 0; tem
< nargs
; tem
++)
245 nextS
= strchr (s
, ':');
246 gdb_assert (nextS
); /* Make sure we found ':'. */
248 fprintf_unfiltered (stream
, " %s: ", s
);
250 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
255 fprintf_unfiltered (stream
, " %s", selector
);
257 fprintf_unfiltered (stream
, "]");
258 /* "selector" was malloc'd by target_read_string. Free it. */
265 nargs
= longest_to_int (exp
->elts
[pc
+ 2].longconst
);
266 nargs
-= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
269 if (exp
->elts
[pc
+ 4].opcode
== OP_LONG
270 && exp
->elts
[pc
+ 5].type
271 == builtin_type (exp
->gdbarch
)->builtin_char
272 && exp
->language_defn
->la_language
== language_c
)
274 /* Attempt to print C character arrays using string syntax.
275 Walk through the args, picking up one character from each
276 of the OP_LONG expression elements. If any array element
277 does not match our expection of what we should find for
278 a simple string, revert back to array printing. Note that
279 the last expression element is an explicit null terminator
280 byte, which doesn't get printed. */
281 tempstr
= alloca (nargs
);
285 if (exp
->elts
[pc
].opcode
!= OP_LONG
286 || exp
->elts
[pc
+ 1].type
287 != builtin_type (exp
->gdbarch
)->builtin_char
)
289 /* Not a simple array of char, use regular array
297 longest_to_int (exp
->elts
[pc
+ 2].longconst
);
304 struct value_print_options opts
;
306 get_user_print_options (&opts
);
307 LA_PRINT_STRING (stream
, builtin_type (exp
->gdbarch
)->builtin_char
,
308 tempstr
, nargs
- 1, NULL
, 0, &opts
);
313 fputs_filtered (" {", stream
);
314 for (tem
= 0; tem
< nargs
; tem
++)
318 fputs_filtered (", ", stream
);
320 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
322 fputs_filtered ("}", stream
);
327 tem
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
328 (*pos
) += 3 + BYTES_TO_EXP_ELEM (tem
+ 1);
329 /* Gcc support both these syntaxes. Unsure which is preferred. */
331 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
332 fputs_filtered (": ", stream
);
334 fputs_filtered (".", stream
);
335 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
336 fputs_filtered ("=", stream
);
338 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
342 if ((int) prec
> (int) PREC_COMMA
)
343 fputs_filtered ("(", stream
);
344 /* Print the subexpressions, forcing parentheses
345 around any binary operations within them.
346 This is more parentheses than are strictly necessary,
347 but it looks clearer. */
348 print_subexp (exp
, pos
, stream
, PREC_HYPER
);
349 fputs_filtered (" ? ", stream
);
350 print_subexp (exp
, pos
, stream
, PREC_HYPER
);
351 fputs_filtered (" : ", stream
);
352 print_subexp (exp
, pos
, stream
, PREC_HYPER
);
353 if ((int) prec
> (int) PREC_COMMA
)
354 fputs_filtered (")", stream
);
358 case TERNOP_SLICE_COUNT
:
359 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
360 fputs_filtered ("(", stream
);
361 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
362 fputs_filtered (opcode
== TERNOP_SLICE
? " : " : " UP ", stream
);
363 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
364 fputs_filtered (")", stream
);
367 case STRUCTOP_STRUCT
:
368 tem
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
369 (*pos
) += 3 + BYTES_TO_EXP_ELEM (tem
+ 1);
370 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
371 fputs_filtered (".", stream
);
372 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
375 /* Will not occur for Modula-2. */
377 tem
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
378 (*pos
) += 3 + BYTES_TO_EXP_ELEM (tem
+ 1);
379 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
380 fputs_filtered ("->", stream
);
381 fputs_filtered (&exp
->elts
[pc
+ 2].string
, stream
);
384 case STRUCTOP_MEMBER
:
385 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
386 fputs_filtered (".*", stream
);
387 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
391 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
392 fputs_filtered ("->*", stream
);
393 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
396 case BINOP_SUBSCRIPT
:
397 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
398 fputs_filtered ("[", stream
);
399 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
400 fputs_filtered ("]", stream
);
403 case UNOP_POSTINCREMENT
:
404 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
405 fputs_filtered ("++", stream
);
408 case UNOP_POSTDECREMENT
:
409 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
410 fputs_filtered ("--", stream
);
415 if ((int) prec
> (int) PREC_PREFIX
)
416 fputs_filtered ("(", stream
);
417 fputs_filtered ("(", stream
);
418 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
419 fputs_filtered (") ", stream
);
420 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
421 if ((int) prec
> (int) PREC_PREFIX
)
422 fputs_filtered (")", stream
);
425 case UNOP_DYNAMIC_CAST
:
426 case UNOP_REINTERPRET_CAST
:
427 fputs_filtered (opcode
== UNOP_DYNAMIC_CAST
? "dynamic_cast"
428 : "reinterpret_cast", stream
);
429 fputs_filtered ("<", stream
);
431 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
432 fputs_filtered ("> (", stream
);
433 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
434 fputs_filtered (")", stream
);
439 if ((int) prec
> (int) PREC_PREFIX
)
440 fputs_filtered ("(", stream
);
441 if (TYPE_CODE (exp
->elts
[pc
+ 1].type
) == TYPE_CODE_FUNC
442 && exp
->elts
[pc
+ 3].opcode
== OP_LONG
)
444 struct value_print_options opts
;
446 /* We have a minimal symbol fn, probably. It's encoded
447 as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address).
448 Swallow the OP_LONG (including both its opcodes); ignore
449 its type; print the value in the type of the MEMVAL. */
451 val
= value_at_lazy (exp
->elts
[pc
+ 1].type
,
452 (CORE_ADDR
) exp
->elts
[pc
+ 5].longconst
);
453 get_raw_print_options (&opts
);
454 value_print (val
, stream
, &opts
);
458 fputs_filtered ("{", stream
);
459 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
460 fputs_filtered ("} ", stream
);
461 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
463 if ((int) prec
> (int) PREC_PREFIX
)
464 fputs_filtered (")", stream
);
467 case UNOP_MEMVAL_TLS
:
469 if ((int) prec
> (int) PREC_PREFIX
)
470 fputs_filtered ("(", stream
);
471 fputs_filtered ("{", stream
);
472 type_print (exp
->elts
[pc
+ 2].type
, "", stream
, 0);
473 fputs_filtered ("} ", stream
);
474 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
475 if ((int) prec
> (int) PREC_PREFIX
)
476 fputs_filtered (")", stream
);
479 case BINOP_ASSIGN_MODIFY
:
480 opcode
= exp
->elts
[pc
+ 1].opcode
;
482 myprec
= PREC_ASSIGN
;
486 for (tem
= 0; op_print_tab
[tem
].opcode
!= OP_NULL
; tem
++)
487 if (op_print_tab
[tem
].opcode
== opcode
)
489 op_str
= op_print_tab
[tem
].string
;
492 if (op_print_tab
[tem
].opcode
!= opcode
)
493 /* Not found; don't try to keep going because we don't know how
494 to interpret further elements. */
495 error (_("Invalid expression"));
502 fputs_filtered ("this", stream
);
505 /* Objective-C ops */
509 fputs_filtered ("self", stream
); /* The ObjC equivalent of "this". */
514 case MULTI_SUBSCRIPT
:
516 nargs
= longest_to_int (exp
->elts
[pc
+ 1].longconst
);
517 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
518 fprintf_unfiltered (stream
, " [");
519 for (tem
= 0; tem
< nargs
; tem
++)
522 fprintf_unfiltered (stream
, ", ");
523 print_subexp (exp
, pos
, stream
, PREC_ABOVE_COMMA
);
525 fprintf_unfiltered (stream
, "]");
530 fprintf_unfiltered (stream
, "VAL(");
531 type_print (exp
->elts
[pc
+ 1].type
, "", stream
, 0);
532 fprintf_unfiltered (stream
, ",");
533 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
534 fprintf_unfiltered (stream
, ")");
541 for (tem
= 0; op_print_tab
[tem
].opcode
!= OP_NULL
; tem
++)
542 if (op_print_tab
[tem
].opcode
== opcode
)
544 op_str
= op_print_tab
[tem
].string
;
545 myprec
= op_print_tab
[tem
].precedence
;
546 assoc
= op_print_tab
[tem
].right_assoc
;
549 if (op_print_tab
[tem
].opcode
!= opcode
)
550 /* Not found; don't try to keep going because we don't know how
551 to interpret further elements. For example, this happens
552 if opcode is OP_TYPE. */
553 error (_("Invalid expression"));
556 /* Note that PREC_BUILTIN will always emit parentheses. */
557 if ((int) myprec
< (int) prec
)
558 fputs_filtered ("(", stream
);
559 if ((int) opcode
> (int) BINOP_END
)
563 /* Unary postfix operator. */
564 print_subexp (exp
, pos
, stream
, PREC_SUFFIX
);
565 fputs_filtered (op_str
, stream
);
569 /* Unary prefix operator. */
570 fputs_filtered (op_str
, stream
);
571 if (myprec
== PREC_BUILTIN_FUNCTION
)
572 fputs_filtered ("(", stream
);
573 print_subexp (exp
, pos
, stream
, PREC_PREFIX
);
574 if (myprec
== PREC_BUILTIN_FUNCTION
)
575 fputs_filtered (")", stream
);
580 /* Binary operator. */
581 /* Print left operand.
582 If operator is right-associative,
583 increment precedence for this operand. */
584 print_subexp (exp
, pos
, stream
,
585 (enum precedence
) ((int) myprec
+ assoc
));
586 /* Print the operator itself. */
588 fprintf_filtered (stream
, " %s= ", op_str
);
589 else if (op_str
[0] == ',')
590 fprintf_filtered (stream
, "%s ", op_str
);
592 fprintf_filtered (stream
, " %s ", op_str
);
593 /* Print right operand.
594 If operator is left-associative,
595 increment precedence for this operand. */
596 print_subexp (exp
, pos
, stream
,
597 (enum precedence
) ((int) myprec
+ !assoc
));
600 if ((int) myprec
< (int) prec
)
601 fputs_filtered (")", stream
);
604 /* Return the operator corresponding to opcode OP as
605 a string. NULL indicates that the opcode was not found in the
606 current language table. */
608 op_string (enum exp_opcode op
)
611 const struct op_print
*op_print_tab
;
613 op_print_tab
= current_language
->la_op_print_tab
;
614 for (tem
= 0; op_print_tab
[tem
].opcode
!= OP_NULL
; tem
++)
615 if (op_print_tab
[tem
].opcode
== op
)
616 return op_print_tab
[tem
].string
;
620 /* Support for dumping the raw data from expressions in a human readable
623 static char *op_name (struct expression
*, enum exp_opcode
);
624 static int dump_subexp_body (struct expression
*exp
, struct ui_file
*, int);
626 /* Name for OPCODE, when it appears in expression EXP. */
629 op_name (struct expression
*exp
, enum exp_opcode opcode
)
631 return exp
->language_defn
->la_exp_desc
->op_name (opcode
);
634 /* Default name for the standard operator OPCODE (i.e., one defined in
635 the definition of enum exp_opcode). */
638 op_name_standard (enum exp_opcode opcode
)
646 sprintf (buf
, "<unknown %d>", opcode
);
667 case BINOP_LOGICAL_AND
:
668 return "BINOP_LOGICAL_AND";
669 case BINOP_LOGICAL_OR
:
670 return "BINOP_LOGICAL_OR";
671 case BINOP_BITWISE_AND
:
672 return "BINOP_BITWISE_AND";
673 case BINOP_BITWISE_IOR
:
674 return "BINOP_BITWISE_IOR";
675 case BINOP_BITWISE_XOR
:
676 return "BINOP_BITWISE_XOR";
678 return "BINOP_EQUAL";
680 return "BINOP_NOTEQUAL";
690 return "BINOP_REPEAT";
692 return "BINOP_ASSIGN";
694 return "BINOP_COMMA";
695 case BINOP_SUBSCRIPT
:
696 return "BINOP_SUBSCRIPT";
697 case MULTI_SUBSCRIPT
:
698 return "MULTI_SUBSCRIPT";
705 case STRUCTOP_MEMBER
:
706 return "STRUCTOP_MEMBER";
708 return "STRUCTOP_MPTR";
710 return "BINOP_INTDIV";
711 case BINOP_ASSIGN_MODIFY
:
712 return "BINOP_ASSIGN_MODIFY";
716 return "BINOP_CONCAT";
718 return "BINOP_RANGE";
722 return "TERNOP_COND";
724 return "TERNOP_SLICE";
725 case TERNOP_SLICE_COUNT
:
726 return "TERNOP_SLICE_COUNT";
732 return "OP_VAR_VALUE";
736 return "OP_REGISTER";
738 return "OP_INTERNALVAR";
744 return "OP_BITSTRING";
749 case UNOP_DYNAMIC_CAST
:
750 return "UNOP_DYNAMIC_CAST";
751 case UNOP_REINTERPRET_CAST
:
752 return "UNOP_REINTERPRET_CAST";
754 return "UNOP_MEMVAL";
755 case UNOP_MEMVAL_TLS
:
756 return "UNOP_MEMVAL_TLS";
759 case UNOP_LOGICAL_NOT
:
760 return "UNOP_LOGICAL_NOT";
761 case UNOP_COMPLEMENT
:
762 return "UNOP_COMPLEMENT";
767 case UNOP_PREINCREMENT
:
768 return "UNOP_PREINCREMENT";
769 case UNOP_POSTINCREMENT
:
770 return "UNOP_POSTINCREMENT";
771 case UNOP_PREDECREMENT
:
772 return "UNOP_PREDECREMENT";
773 case UNOP_POSTDECREMENT
:
774 return "UNOP_POSTDECREMENT";
776 return "UNOP_SIZEOF";
802 return "OP_M2_STRING";
803 case STRUCTOP_STRUCT
:
804 return "STRUCTOP_STRUCT";
806 return "STRUCTOP_PTR";
810 return "OP_OBJC_SELF";
818 return "OP_ADL_FUNC";
822 /* Print a raw dump of expression EXP to STREAM.
823 NOTE, if non-NULL, is printed as extra explanatory text. */
826 dump_raw_expression (struct expression
*exp
, struct ui_file
*stream
,
834 fprintf_filtered (stream
, "Dump of expression @ ");
835 gdb_print_host_address (exp
, stream
);
837 fprintf_filtered (stream
, ", %s:", note
);
838 fprintf_filtered (stream
, "\n\tLanguage %s, %d elements, %ld bytes each.\n",
839 exp
->language_defn
->la_name
, exp
->nelts
,
840 (long) sizeof (union exp_element
));
841 fprintf_filtered (stream
, "\t%5s %20s %16s %s\n", "Index", "Opcode",
842 "Hex Value", "String Value");
843 for (elt
= 0; elt
< exp
->nelts
; elt
++)
845 fprintf_filtered (stream
, "\t%5d ", elt
);
846 opcode_name
= op_name (exp
, exp
->elts
[elt
].opcode
);
848 fprintf_filtered (stream
, "%20s ", opcode_name
);
849 print_longest (stream
, 'd', 0, exp
->elts
[elt
].longconst
);
850 fprintf_filtered (stream
, " ");
852 for (eltscan
= (char *) &exp
->elts
[elt
],
853 eltsize
= sizeof (union exp_element
);
857 fprintf_filtered (stream
, "%c",
858 isprint (*eltscan
) ? (*eltscan
& 0xFF) : '.');
860 fprintf_filtered (stream
, "\n");
864 /* Dump the subexpression of prefix expression EXP whose operator is at
865 position ELT onto STREAM. Returns the position of the next
866 subexpression in EXP. */
869 dump_subexp (struct expression
*exp
, struct ui_file
*stream
, int elt
)
871 static int indent
= 0;
874 fprintf_filtered (stream
, "\n");
875 fprintf_filtered (stream
, "\t%5d ", elt
);
877 for (i
= 1; i
<= indent
; i
++)
878 fprintf_filtered (stream
, " ");
881 fprintf_filtered (stream
, "%-20s ", op_name (exp
, exp
->elts
[elt
].opcode
));
883 elt
= dump_subexp_body (exp
, stream
, elt
);
890 /* Dump the operands of prefix expression EXP whose opcode is at
891 position ELT onto STREAM. Returns the position of the next
892 subexpression in EXP. */
895 dump_subexp_body (struct expression
*exp
, struct ui_file
*stream
, int elt
)
897 return exp
->language_defn
->la_exp_desc
->dump_subexp_body (exp
, stream
, elt
);
900 /* Default value for subexp_body in exp_descriptor vector. */
903 dump_subexp_body_standard (struct expression
*exp
,
904 struct ui_file
*stream
, int elt
)
906 int opcode
= exp
->elts
[elt
++].opcode
;
912 case TERNOP_SLICE_COUNT
:
913 elt
= dump_subexp (exp
, stream
, elt
);
922 case BINOP_LOGICAL_AND
:
923 case BINOP_LOGICAL_OR
:
924 case BINOP_BITWISE_AND
:
925 case BINOP_BITWISE_IOR
:
926 case BINOP_BITWISE_XOR
:
936 case BINOP_SUBSCRIPT
:
941 case BINOP_ASSIGN_MODIFY
:
947 case STRUCTOP_MEMBER
:
949 elt
= dump_subexp (exp
, stream
, elt
);
951 case UNOP_LOGICAL_NOT
:
952 case UNOP_COMPLEMENT
:
955 case UNOP_PREINCREMENT
:
956 case UNOP_POSTINCREMENT
:
957 case UNOP_PREDECREMENT
:
958 case UNOP_POSTDECREMENT
:
971 elt
= dump_subexp (exp
, stream
, elt
);
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
, "), value %ld (0x%lx)",
979 (long) exp
->elts
[elt
+ 1].longconst
,
980 (long) exp
->elts
[elt
+ 1].longconst
);
984 fprintf_filtered (stream
, "Type @");
985 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
986 fprintf_filtered (stream
, " (");
987 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
988 fprintf_filtered (stream
, "), value %g",
989 (double) exp
->elts
[elt
+ 1].doubleconst
);
993 fprintf_filtered (stream
, "Block @");
994 gdb_print_host_address (exp
->elts
[elt
].block
, stream
);
995 fprintf_filtered (stream
, ", symbol @");
996 gdb_print_host_address (exp
->elts
[elt
+ 1].symbol
, stream
);
997 fprintf_filtered (stream
, " (%s)",
998 SYMBOL_PRINT_NAME (exp
->elts
[elt
+ 1].symbol
));
1002 fprintf_filtered (stream
, "History element %ld",
1003 (long) exp
->elts
[elt
].longconst
);
1007 fprintf_filtered (stream
, "Register $%s", &exp
->elts
[elt
+ 1].string
);
1008 elt
+= 3 + BYTES_TO_EXP_ELEM (exp
->elts
[elt
].longconst
+ 1);
1010 case OP_INTERNALVAR
:
1011 fprintf_filtered (stream
, "Internal var @");
1012 gdb_print_host_address (exp
->elts
[elt
].internalvar
, stream
);
1013 fprintf_filtered (stream
, " (%s)",
1014 internalvar_name (exp
->elts
[elt
].internalvar
));
1021 nargs
= longest_to_int (exp
->elts
[elt
].longconst
);
1023 fprintf_filtered (stream
, "Number of args: %d", nargs
);
1026 for (i
= 1; i
<= nargs
+ 1; i
++)
1027 elt
= dump_subexp (exp
, stream
, elt
);
1035 lower
= longest_to_int (exp
->elts
[elt
].longconst
);
1036 upper
= longest_to_int (exp
->elts
[elt
+ 1].longconst
);
1038 fprintf_filtered (stream
, "Bounds [%d:%d]", lower
, upper
);
1041 for (i
= 1; i
<= upper
- lower
+ 1; i
++)
1042 elt
= dump_subexp (exp
, stream
, elt
);
1047 case UNOP_DYNAMIC_CAST
:
1048 case UNOP_REINTERPRET_CAST
:
1049 fprintf_filtered (stream
, "Type @");
1050 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
1051 fprintf_filtered (stream
, " (");
1052 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
1053 fprintf_filtered (stream
, ")");
1054 elt
= dump_subexp (exp
, stream
, elt
+ 2);
1056 case UNOP_MEMVAL_TLS
:
1057 fprintf_filtered (stream
, "TLS type @");
1058 gdb_print_host_address (exp
->elts
[elt
+ 1].type
, stream
);
1059 fprintf_filtered (stream
, " (__thread /* \"%s\" */ ",
1060 (exp
->elts
[elt
].objfile
== NULL
? "(null)"
1061 : exp
->elts
[elt
].objfile
->name
));
1062 type_print (exp
->elts
[elt
+ 1].type
, NULL
, stream
, 0);
1063 fprintf_filtered (stream
, ")");
1064 elt
= dump_subexp (exp
, stream
, elt
+ 3);
1067 fprintf_filtered (stream
, "Type @");
1068 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
1069 fprintf_filtered (stream
, " (");
1070 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
1071 fprintf_filtered (stream
, ")");
1074 case STRUCTOP_STRUCT
:
1080 len
= longest_to_int (exp
->elts
[elt
].longconst
);
1081 elem_name
= &exp
->elts
[elt
+ 1].string
;
1083 fprintf_filtered (stream
, "Element name: `%.*s'", len
, elem_name
);
1084 elt
= dump_subexp (exp
, stream
, elt
+ 3 + BYTES_TO_EXP_ELEM (len
+ 1));
1092 fprintf_filtered (stream
, "Type @");
1093 gdb_print_host_address (exp
->elts
[elt
].type
, stream
);
1094 fprintf_filtered (stream
, " (");
1095 type_print (exp
->elts
[elt
].type
, NULL
, stream
, 0);
1096 fprintf_filtered (stream
, ") ");
1098 len
= longest_to_int (exp
->elts
[elt
+ 1].longconst
);
1099 elem_name
= &exp
->elts
[elt
+ 2].string
;
1101 fprintf_filtered (stream
, "Field name: `%.*s'", len
, elem_name
);
1102 elt
+= 4 + BYTES_TO_EXP_ELEM (len
+ 1);
1107 case MULTI_SUBSCRIPT
:
1108 case OP_F77_UNDETERMINED_ARGLIST
:
1117 fprintf_filtered (stream
, "Unknown format");
1124 dump_prefix_expression (struct expression
*exp
, struct ui_file
*stream
)
1128 fprintf_filtered (stream
, "Dump of expression @ ");
1129 gdb_print_host_address (exp
, stream
);
1130 fputs_filtered (", after conversion to prefix form:\nExpression: `", stream
);
1131 if (exp
->elts
[0].opcode
!= OP_TYPE
)
1132 print_expression (exp
, stream
);
1134 fputs_filtered ("Type printing not yet supported....", stream
);
1135 fprintf_filtered (stream
, "'\n\tLanguage %s, %d elements, %ld bytes each.\n",
1136 exp
->language_defn
->la_name
, exp
->nelts
,
1137 (long) sizeof (union exp_element
));
1138 fputs_filtered ("\n", stream
);
1140 for (elt
= 0; elt
< exp
->nelts
;)
1141 elt
= dump_subexp (exp
, stream
, elt
);
1142 fputs_filtered ("\n", stream
);