1 /* Print in infix form a struct expression.
3 Copyright (C) 1986-2017 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_double (exp->elts[pc + 1].type,
115 exp->elts[pc + 2].doubleconst),
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));
190 nargs = longest_to_int (exp->elts[pc + 1].longconst);
191 print_subexp (exp, pos, stream, PREC_SUFFIX);
192 fputs_filtered (" (", stream);
193 for (tem = 0; tem < nargs; tem++)
196 fputs_filtered (", ", stream);
197 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
199 fputs_filtered (")", stream);
203 nargs = longest_to_int (exp->elts[pc + 1].longconst);
204 (*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
205 fputs_filtered (&exp->elts[pc + 2].string, stream);
210 struct value_print_options opts;
212 nargs = longest_to_int (exp->elts[pc + 1].longconst);
213 (*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
214 /* LA_PRINT_STRING will print using the current repeat count threshold.
215 If necessary, we can temporarily set it to zero, or pass it as an
216 additional parameter to LA_PRINT_STRING. -fnf */
217 get_user_print_options (&opts);
218 LA_PRINT_STRING (stream, builtin_type (exp->gdbarch)->builtin_char,
219 (gdb_byte *) &exp->elts[pc + 2].string, nargs,
224 case OP_OBJC_NSSTRING: /* Objective-C Foundation Class
225 NSString constant. */
227 struct value_print_options opts;
229 nargs = longest_to_int (exp->elts[pc + 1].longconst);
230 (*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
231 fputs_filtered ("@\"", stream);
232 get_user_print_options (&opts);
233 LA_PRINT_STRING (stream, builtin_type (exp->gdbarch)->builtin_char,
234 (gdb_byte *) &exp->elts[pc + 2].string, nargs,
236 fputs_filtered ("\"", stream);
240 case OP_OBJC_MSGCALL:
241 { /* Objective C message (method) call. */
245 nargs = longest_to_int (exp->elts[pc + 2].longconst);
246 fprintf_unfiltered (stream, "[");
247 print_subexp (exp, pos, stream, PREC_SUFFIX);
248 if (0 == target_read_string (exp->elts[pc + 1].longconst,
249 &selector, 1024, NULL))
251 error (_("bad selector"));
258 s = (char *) alloca (strlen (selector) + 1);
259 strcpy (s, selector);
260 for (tem = 0; tem < nargs; tem++)
262 nextS = strchr (s, ':');
263 gdb_assert (nextS); /* Make sure we found ':'. */
265 fprintf_unfiltered (stream, " %s: ", s);
267 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
272 fprintf_unfiltered (stream, " %s", selector);
274 fprintf_unfiltered (stream, "]");
275 /* "selector" was malloc'd by target_read_string. Free it. */
282 nargs = longest_to_int (exp->elts[pc + 2].longconst);
283 nargs -= longest_to_int (exp->elts[pc + 1].longconst);
286 if (exp->elts[pc + 4].opcode == OP_LONG
287 && exp->elts[pc + 5].type
288 == builtin_type (exp->gdbarch)->builtin_char
289 && exp->language_defn->la_language == language_c)
291 /* Attempt to print C character arrays using string syntax.
292 Walk through the args, picking up one character from each
293 of the OP_LONG expression elements. If any array element
294 does not match our expection of what we should find for
295 a simple string, revert back to array printing. Note that
296 the last expression element is an explicit null terminator
297 byte, which doesn't get printed. */
298 tempstr = (char *) alloca (nargs);
302 if (exp->elts[pc].opcode != OP_LONG
303 || exp->elts[pc + 1].type
304 != builtin_type (exp->gdbarch)->builtin_char)
306 /* Not a simple array of char, use regular array
314 longest_to_int (exp->elts[pc + 2].longconst);
321 struct value_print_options opts;
323 get_user_print_options (&opts);
324 LA_PRINT_STRING (stream, builtin_type (exp->gdbarch)->builtin_char,
325 (gdb_byte *) tempstr, nargs - 1, NULL, 0, &opts);
330 fputs_filtered (" {", stream);
331 for (tem = 0; tem < nargs; tem++)
335 fputs_filtered (", ", stream);
337 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
339 fputs_filtered ("}", stream);
344 if ((int) prec > (int) PREC_COMMA)
345 fputs_filtered ("(", stream);
346 /* Print the subexpressions, forcing parentheses
347 around any binary operations within them.
348 This is more parentheses than are strictly necessary,
349 but it looks clearer. */
350 print_subexp (exp, pos, stream, PREC_HYPER);
351 fputs_filtered (" ? ", stream);
352 print_subexp (exp, pos, stream, PREC_HYPER);
353 fputs_filtered (" : ", stream);
354 print_subexp (exp, pos, stream, PREC_HYPER);
355 if ((int) prec > (int) PREC_COMMA)
356 fputs_filtered (")", stream);
360 print_subexp (exp, pos, stream, PREC_SUFFIX);
361 fputs_filtered ("(", stream);
362 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
363 fputs_filtered (opcode == TERNOP_SLICE ? " : " : " UP ", stream);
364 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
365 fputs_filtered (")", stream);
368 case STRUCTOP_STRUCT:
369 tem = longest_to_int (exp->elts[pc + 1].longconst);
370 (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
371 print_subexp (exp, pos, stream, PREC_SUFFIX);
372 fputs_filtered (".", stream);
373 fputs_filtered (&exp->elts[pc + 2].string, stream);
376 /* Will not occur for Modula-2. */
378 tem = longest_to_int (exp->elts[pc + 1].longconst);
379 (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
380 print_subexp (exp, pos, stream, PREC_SUFFIX);
381 fputs_filtered ("->", stream);
382 fputs_filtered (&exp->elts[pc + 2].string, stream);
385 case STRUCTOP_MEMBER:
386 print_subexp (exp, pos, stream, PREC_SUFFIX);
387 fputs_filtered (".*", stream);
388 print_subexp (exp, pos, stream, PREC_SUFFIX);
392 print_subexp (exp, pos, stream, PREC_SUFFIX);
393 fputs_filtered ("->*", stream);
394 print_subexp (exp, pos, stream, PREC_SUFFIX);
397 case BINOP_SUBSCRIPT:
398 print_subexp (exp, pos, stream, PREC_SUFFIX);
399 fputs_filtered ("[", stream);
400 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
401 fputs_filtered ("]", stream);
404 case UNOP_POSTINCREMENT:
405 print_subexp (exp, pos, stream, PREC_SUFFIX);
406 fputs_filtered ("++", stream);
409 case UNOP_POSTDECREMENT:
410 print_subexp (exp, pos, stream, PREC_SUFFIX);
411 fputs_filtered ("--", stream);
416 if ((int) prec > (int) PREC_PREFIX)
417 fputs_filtered ("(", stream);
418 fputs_filtered ("(", stream);
419 type_print (exp->elts[pc + 1].type, "", stream, 0);
420 fputs_filtered (") ", stream);
421 print_subexp (exp, pos, stream, PREC_PREFIX);
422 if ((int) prec > (int) PREC_PREFIX)
423 fputs_filtered (")", stream);
427 if ((int) prec > (int) PREC_PREFIX)
428 fputs_filtered ("(", stream);
429 fputs_filtered ("(", stream);
430 print_subexp (exp, pos, stream, PREC_PREFIX);
431 fputs_filtered (") ", stream);
432 print_subexp (exp, pos, stream, PREC_PREFIX);
433 if ((int) prec > (int) PREC_PREFIX)
434 fputs_filtered (")", stream);
437 case UNOP_DYNAMIC_CAST:
438 case UNOP_REINTERPRET_CAST:
439 fputs_filtered (opcode == UNOP_DYNAMIC_CAST ? "dynamic_cast"
440 : "reinterpret_cast", stream);
441 fputs_filtered ("<", stream);
442 print_subexp (exp, pos, stream, PREC_PREFIX);
443 fputs_filtered ("> (", stream);
444 print_subexp (exp, pos, stream, PREC_PREFIX);
445 fputs_filtered (")", stream);
450 if ((int) prec > (int) PREC_PREFIX)
451 fputs_filtered ("(", stream);
452 if (TYPE_CODE (exp->elts[pc + 1].type) == TYPE_CODE_FUNC
453 && exp->elts[pc + 3].opcode == OP_LONG)
455 struct value_print_options opts;
457 /* We have a minimal symbol fn, probably. It's encoded
458 as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address).
459 Swallow the OP_LONG (including both its opcodes); ignore
460 its type; print the value in the type of the MEMVAL. */
462 val = value_at_lazy (exp->elts[pc + 1].type,
463 (CORE_ADDR) exp->elts[pc + 5].longconst);
464 get_no_prettyformat_print_options (&opts);
465 value_print (val, stream, &opts);
469 fputs_filtered ("{", stream);
470 type_print (exp->elts[pc + 1].type, "", stream, 0);
471 fputs_filtered ("} ", stream);
472 print_subexp (exp, pos, stream, PREC_PREFIX);
474 if ((int) prec > (int) PREC_PREFIX)
475 fputs_filtered (")", stream);
478 case UNOP_MEMVAL_TYPE:
479 if ((int) prec > (int) PREC_PREFIX)
480 fputs_filtered ("(", stream);
481 fputs_filtered ("{", stream);
482 print_subexp (exp, pos, stream, PREC_PREFIX);
483 fputs_filtered ("} ", stream);
484 print_subexp (exp, pos, stream, PREC_PREFIX);
485 if ((int) prec > (int) PREC_PREFIX)
486 fputs_filtered (")", stream);
489 case BINOP_ASSIGN_MODIFY:
490 opcode = exp->elts[pc + 1].opcode;
492 myprec = PREC_ASSIGN;
496 for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
497 if (op_print_tab[tem].opcode == opcode)
499 op_str = op_print_tab[tem].string;
502 if (op_print_tab[tem].opcode != opcode)
503 /* Not found; don't try to keep going because we don't know how
504 to interpret further elements. */
505 error (_("Invalid expression"));
512 if (exp->language_defn->la_name_of_this)
513 fputs_filtered (exp->language_defn->la_name_of_this, stream);
515 fprintf_filtered (stream, _("<language %s has no 'this'>"),
516 exp->language_defn->la_name);
521 case MULTI_SUBSCRIPT:
523 nargs = longest_to_int (exp->elts[pc + 1].longconst);
524 print_subexp (exp, pos, stream, PREC_SUFFIX);
525 fprintf_unfiltered (stream, " [");
526 for (tem = 0; tem < nargs; tem++)
529 fprintf_unfiltered (stream, ", ");
530 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
532 fprintf_unfiltered (stream, "]");
537 fprintf_unfiltered (stream, "VAL(");
538 type_print (exp->elts[pc + 1].type, "", stream, 0);
539 fprintf_unfiltered (stream, ",");
540 print_subexp (exp, pos, stream, PREC_PREFIX);
541 fprintf_unfiltered (stream, ")");
546 type_instance_flags flags
547 = (type_instance_flag_value) longest_to_int (exp->elts[pc + 1].longconst);
548 LONGEST count = exp->elts[pc + 2].longconst;
554 fputs_unfiltered ("TypeInstance(", stream);
557 type_print (exp->elts[(*pos)++].type, "", stream, 0);
559 fputs_unfiltered (",", stream);
561 fputs_unfiltered (",", stream);
562 /* Ending COUNT and ending TYPE_INSTANCE. */
564 print_subexp (exp, pos, stream, PREC_PREFIX);
566 if (flags & TYPE_INSTANCE_FLAG_CONST)
567 fputs_unfiltered (",const", stream);
568 if (flags & TYPE_INSTANCE_FLAG_VOLATILE)
569 fputs_unfiltered (",volatile", stream);
571 fputs_unfiltered (")", stream);
577 enum range_type range_type;
579 range_type = (enum range_type)
580 longest_to_int (exp->elts[pc + 1].longconst);
583 fputs_filtered ("RANGE(", stream);
584 if (range_type == HIGH_BOUND_DEFAULT
585 || range_type == NONE_BOUND_DEFAULT)
586 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
587 fputs_filtered ("..", stream);
588 if (range_type == LOW_BOUND_DEFAULT
589 || range_type == NONE_BOUND_DEFAULT)
590 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
591 fputs_filtered (")", stream);
599 for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
600 if (op_print_tab[tem].opcode == opcode)
602 op_str = op_print_tab[tem].string;
603 myprec = op_print_tab[tem].precedence;
604 assoc = op_print_tab[tem].right_assoc;
607 if (op_print_tab[tem].opcode != opcode)
608 /* Not found; don't try to keep going because we don't know how
609 to interpret further elements. For example, this happens
610 if opcode is OP_TYPE. */
611 error (_("Invalid expression"));
614 /* Note that PREC_BUILTIN will always emit parentheses. */
615 if ((int) myprec < (int) prec)
616 fputs_filtered ("(", stream);
617 if ((int) opcode > (int) BINOP_END)
621 /* Unary postfix operator. */
622 print_subexp (exp, pos, stream, PREC_SUFFIX);
623 fputs_filtered (op_str, stream);
627 /* Unary prefix operator. */
628 fputs_filtered (op_str, stream);
629 if (myprec == PREC_BUILTIN_FUNCTION)
630 fputs_filtered ("(", stream);
631 print_subexp (exp, pos, stream, PREC_PREFIX);
632 if (myprec == PREC_BUILTIN_FUNCTION)
633 fputs_filtered (")", stream);
638 /* Binary operator. */
639 /* Print left operand.
640 If operator is right-associative,
641 increment precedence for this operand. */
642 print_subexp (exp, pos, stream,
643 (enum precedence) ((int) myprec + assoc));
644 /* Print the operator itself. */
646 fprintf_filtered (stream, " %s= ", op_str);
647 else if (op_str[0] == ',')
648 fprintf_filtered (stream, "%s ", op_str);
650 fprintf_filtered (stream, " %s ", op_str);
651 /* Print right operand.
652 If operator is left-associative,
653 increment precedence for this operand. */
654 print_subexp (exp, pos, stream,
655 (enum precedence) ((int) myprec + !assoc));
658 if ((int) myprec < (int) prec)
659 fputs_filtered (")", stream);
662 /* Return the operator corresponding to opcode OP as
663 a string. NULL indicates that the opcode was not found in the
664 current language table. */
666 op_string (enum exp_opcode op)
669 const struct op_print *op_print_tab;
671 op_print_tab = current_language->la_op_print_tab;
672 for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
673 if (op_print_tab[tem].opcode == op)
674 return op_print_tab[tem].string;
678 /* Support for dumping the raw data from expressions in a human readable
681 static int dump_subexp_body (struct expression *exp, struct ui_file *, int);
683 /* Name for OPCODE, when it appears in expression EXP. */
686 op_name (struct expression *exp, enum exp_opcode opcode)
688 return exp->language_defn->la_exp_desc->op_name (opcode);
691 /* Default name for the standard operator OPCODE (i.e., one defined in
692 the definition of enum exp_opcode). */
695 op_name_standard (enum exp_opcode opcode)
703 xsnprintf (buf, sizeof (buf), "<unknown %d>", opcode);
709 #include "std-operator.def"
714 /* Print a raw dump of expression EXP to STREAM.
715 NOTE, if non-NULL, is printed as extra explanatory text. */
718 dump_raw_expression (struct expression *exp, struct ui_file *stream,
725 fprintf_filtered (stream, "Dump of expression @ ");
726 gdb_print_host_address (exp, stream);
728 fprintf_filtered (stream, ", %s:", note);
729 fprintf_filtered (stream, "\n\tLanguage %s, %d elements, %ld bytes each.\n",
730 exp->language_defn->la_name, exp->nelts,
731 (long) sizeof (union exp_element));
732 fprintf_filtered (stream, "\t%5s %20s %16s %s\n", "Index", "Opcode",
733 "Hex Value", "String Value");
734 for (elt = 0; elt < exp->nelts; elt++)
736 fprintf_filtered (stream, "\t%5d ", elt);
738 const char *opcode_name = op_name (exp, exp->elts[elt].opcode);
739 fprintf_filtered (stream, "%20s ", opcode_name);
741 print_longest (stream, 'd', 0, exp->elts[elt].longconst);
742 fprintf_filtered (stream, " ");
744 for (eltscan = (char *) &exp->elts[elt],
745 eltsize = sizeof (union exp_element);
749 fprintf_filtered (stream, "%c",
750 isprint (*eltscan) ? (*eltscan & 0xFF) : '.');
752 fprintf_filtered (stream, "\n");
756 /* Dump the subexpression of prefix expression EXP whose operator is at
757 position ELT onto STREAM. Returns the position of the next
758 subexpression in EXP. */
761 dump_subexp (struct expression *exp, struct ui_file *stream, int elt)
763 static int indent = 0;
766 fprintf_filtered (stream, "\n");
767 fprintf_filtered (stream, "\t%5d ", elt);
769 for (i = 1; i <= indent; i++)
770 fprintf_filtered (stream, " ");
773 fprintf_filtered (stream, "%-20s ", op_name (exp, exp->elts[elt].opcode));
775 elt = dump_subexp_body (exp, stream, elt);
782 /* Dump the operands of prefix expression EXP whose opcode is at
783 position ELT onto STREAM. Returns the position of the next
784 subexpression in EXP. */
787 dump_subexp_body (struct expression *exp, struct ui_file *stream, int elt)
789 return exp->language_defn->la_exp_desc->dump_subexp_body (exp, stream, elt);
792 /* Default value for subexp_body in exp_descriptor vector. */
795 dump_subexp_body_standard (struct expression *exp,
796 struct ui_file *stream, int elt)
798 int opcode = exp->elts[elt++].opcode;
804 elt = dump_subexp (exp, stream, elt);
814 case BINOP_LOGICAL_AND:
815 case BINOP_LOGICAL_OR:
816 case BINOP_BITWISE_AND:
817 case BINOP_BITWISE_IOR:
818 case BINOP_BITWISE_XOR:
828 case BINOP_SUBSCRIPT:
833 case BINOP_ASSIGN_MODIFY:
837 case STRUCTOP_MEMBER:
839 elt = dump_subexp (exp, stream, elt);
842 case UNOP_LOGICAL_NOT:
843 case UNOP_COMPLEMENT:
846 case UNOP_PREINCREMENT:
847 case UNOP_POSTINCREMENT:
848 case UNOP_PREDECREMENT:
849 case UNOP_POSTDECREMENT:
862 elt = dump_subexp (exp, stream, elt);
865 fprintf_filtered (stream, "Type @");
866 gdb_print_host_address (exp->elts[elt].type, stream);
867 fprintf_filtered (stream, " (");
868 type_print (exp->elts[elt].type, NULL, stream, 0);
869 fprintf_filtered (stream, "), value %ld (0x%lx)",
870 (long) exp->elts[elt + 1].longconst,
871 (long) exp->elts[elt + 1].longconst);
875 fprintf_filtered (stream, "Type @");
876 gdb_print_host_address (exp->elts[elt].type, stream);
877 fprintf_filtered (stream, " (");
878 type_print (exp->elts[elt].type, NULL, stream, 0);
879 fprintf_filtered (stream, "), value %g",
880 (double) exp->elts[elt + 1].doubleconst);
884 fprintf_filtered (stream, "Block @");
885 gdb_print_host_address (exp->elts[elt].block, stream);
886 fprintf_filtered (stream, ", symbol @");
887 gdb_print_host_address (exp->elts[elt + 1].symbol, stream);
888 fprintf_filtered (stream, " (%s)",
889 SYMBOL_PRINT_NAME (exp->elts[elt + 1].symbol));
892 case OP_VAR_MSYM_VALUE:
893 fprintf_filtered (stream, "Objfile @");
894 gdb_print_host_address (exp->elts[elt].objfile, stream);
895 fprintf_filtered (stream, ", msymbol @");
896 gdb_print_host_address (exp->elts[elt + 1].msymbol, stream);
897 fprintf_filtered (stream, " (%s)",
898 MSYMBOL_PRINT_NAME (exp->elts[elt + 1].msymbol));
901 case OP_VAR_ENTRY_VALUE:
902 fprintf_filtered (stream, "Entry value of symbol @");
903 gdb_print_host_address (exp->elts[elt].symbol, stream);
904 fprintf_filtered (stream, " (%s)",
905 SYMBOL_PRINT_NAME (exp->elts[elt].symbol));
909 fprintf_filtered (stream, "History element %ld",
910 (long) exp->elts[elt].longconst);
914 fprintf_filtered (stream, "Register $%s", &exp->elts[elt + 1].string);
915 elt += 3 + BYTES_TO_EXP_ELEM (exp->elts[elt].longconst + 1);
918 fprintf_filtered (stream, "Internal var @");
919 gdb_print_host_address (exp->elts[elt].internalvar, stream);
920 fprintf_filtered (stream, " (%s)",
921 internalvar_name (exp->elts[elt].internalvar));
928 nargs = longest_to_int (exp->elts[elt].longconst);
930 fprintf_filtered (stream, "Number of args: %d", nargs);
933 for (i = 1; i <= nargs + 1; i++)
934 elt = dump_subexp (exp, stream, elt);
942 lower = longest_to_int (exp->elts[elt].longconst);
943 upper = longest_to_int (exp->elts[elt + 1].longconst);
945 fprintf_filtered (stream, "Bounds [%d:%d]", lower, upper);
948 for (i = 1; i <= upper - lower + 1; i++)
949 elt = dump_subexp (exp, stream, elt);
952 case UNOP_DYNAMIC_CAST:
953 case UNOP_REINTERPRET_CAST:
955 case UNOP_MEMVAL_TYPE:
956 fprintf_filtered (stream, " (");
957 elt = dump_subexp (exp, stream, elt);
958 fprintf_filtered (stream, ")");
959 elt = dump_subexp (exp, stream, elt);
963 fprintf_filtered (stream, "Type @");
964 gdb_print_host_address (exp->elts[elt].type, stream);
965 fprintf_filtered (stream, " (");
966 type_print (exp->elts[elt].type, NULL, stream, 0);
967 fprintf_filtered (stream, ")");
968 elt = dump_subexp (exp, stream, elt + 2);
971 fprintf_filtered (stream, "Type @");
972 gdb_print_host_address (exp->elts[elt].type, stream);
973 fprintf_filtered (stream, " (");
974 type_print (exp->elts[elt].type, NULL, stream, 0);
975 fprintf_filtered (stream, ")");
980 fprintf_filtered (stream, "Typeof (");
981 elt = dump_subexp (exp, stream, elt);
982 fprintf_filtered (stream, ")");
985 fprintf_filtered (stream, "typeid (");
986 elt = dump_subexp (exp, stream, elt);
987 fprintf_filtered (stream, ")");
989 case STRUCTOP_STRUCT:
995 len = longest_to_int (exp->elts[elt].longconst);
996 elem_name = &exp->elts[elt + 1].string;
998 fprintf_filtered (stream, "Element name: `%.*s'", len, elem_name);
999 elt = dump_subexp (exp, stream, elt + 3 + BYTES_TO_EXP_ELEM (len + 1));
1007 fprintf_filtered (stream, "Type @");
1008 gdb_print_host_address (exp->elts[elt].type, stream);
1009 fprintf_filtered (stream, " (");
1010 type_print (exp->elts[elt].type, NULL, stream, 0);
1011 fprintf_filtered (stream, ") ");
1013 len = longest_to_int (exp->elts[elt + 1].longconst);
1014 elem_name = &exp->elts[elt + 2].string;
1016 fprintf_filtered (stream, "Field name: `%.*s'", len, elem_name);
1017 elt += 4 + BYTES_TO_EXP_ELEM (len + 1);
1021 case OP_FUNC_STATIC_VAR:
1023 int len = longest_to_int (exp->elts[elt].longconst);
1024 const char *var_name = &exp->elts[elt + 1].string;
1025 fprintf_filtered (stream, "Field name: `%.*s'", len, var_name);
1026 elt += 3 + BYTES_TO_EXP_ELEM (len + 1);
1032 type_instance_flags flags
1033 = (type_instance_flag_value) longest_to_int (exp->elts[elt++].longconst);
1034 LONGEST len = exp->elts[elt++].longconst;
1035 fprintf_filtered (stream, "%s TypeInstance: ", plongest (len));
1038 fprintf_filtered (stream, "Type @");
1039 gdb_print_host_address (exp->elts[elt].type, stream);
1040 fprintf_filtered (stream, " (");
1041 type_print (exp->elts[elt].type, NULL, stream, 0);
1042 fprintf_filtered (stream, ")");
1045 fputs_filtered (", ", stream);
1048 fprintf_filtered (stream, " Flags: %s (", hex_string (flags));
1050 auto print_one = [&] (const char *mod)
1053 fputs_filtered (" ", stream);
1055 fprintf_filtered (stream, "%s", mod);
1057 if (flags & TYPE_INSTANCE_FLAG_CONST)
1058 print_one ("const");
1059 if (flags & TYPE_INSTANCE_FLAG_VOLATILE)
1060 print_one ("volatile");
1061 fprintf_filtered (stream, ")");
1063 /* Ending LEN and ending TYPE_INSTANCE. */
1065 elt = dump_subexp (exp, stream, elt);
1070 LONGEST len = exp->elts[elt].longconst;
1071 LONGEST type = exp->elts[elt + 1].longconst;
1073 fprintf_filtered (stream, "Language-specific string type: %s",
1079 /* Skip string content. */
1080 elt += BYTES_TO_EXP_ELEM (len);
1082 /* Skip length and ending OP_STRING. */
1088 enum range_type range_type;
1090 range_type = (enum range_type)
1091 longest_to_int (exp->elts[elt].longconst);
1096 case BOTH_BOUND_DEFAULT:
1097 fputs_filtered ("Range '..'", stream);
1099 case LOW_BOUND_DEFAULT:
1100 fputs_filtered ("Range '..EXP'", stream);
1102 case HIGH_BOUND_DEFAULT:
1103 fputs_filtered ("Range 'EXP..'", stream);
1105 case NONE_BOUND_DEFAULT:
1106 fputs_filtered ("Range 'EXP..EXP'", stream);
1109 fputs_filtered ("Invalid Range!", stream);
1113 if (range_type == HIGH_BOUND_DEFAULT
1114 || range_type == NONE_BOUND_DEFAULT)
1115 elt = dump_subexp (exp, stream, elt);
1116 if (range_type == LOW_BOUND_DEFAULT
1117 || range_type == NONE_BOUND_DEFAULT)
1118 elt = dump_subexp (exp, stream, elt);
1124 case MULTI_SUBSCRIPT:
1125 case OP_F77_UNDETERMINED_ARGLIST:
1131 fprintf_filtered (stream, "Unknown format");
1138 dump_prefix_expression (struct expression *exp, struct ui_file *stream)
1142 fprintf_filtered (stream, "Dump of expression @ ");
1143 gdb_print_host_address (exp, stream);
1144 fputs_filtered (", after conversion to prefix form:\nExpression: `", stream);
1145 print_expression (exp, stream);
1146 fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %ld bytes each.\n",
1147 exp->language_defn->la_name, exp->nelts,
1148 (long) sizeof (union exp_element));
1149 fputs_filtered ("\n", stream);
1151 for (elt = 0; elt < exp->nelts;)
1152 elt = dump_subexp (exp, stream, elt);
1153 fputs_filtered ("\n", stream);