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. */
243 gdb::unique_xmalloc_ptr<char> selector;
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"));
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.get ());
274 fprintf_unfiltered (stream, "]");
280 nargs = longest_to_int (exp->elts[pc + 2].longconst);
281 nargs -= longest_to_int (exp->elts[pc + 1].longconst);
284 if (exp->elts[pc + 4].opcode == OP_LONG
285 && exp->elts[pc + 5].type
286 == builtin_type (exp->gdbarch)->builtin_char
287 && exp->language_defn->la_language == language_c)
289 /* Attempt to print C character arrays using string syntax.
290 Walk through the args, picking up one character from each
291 of the OP_LONG expression elements. If any array element
292 does not match our expection of what we should find for
293 a simple string, revert back to array printing. Note that
294 the last expression element is an explicit null terminator
295 byte, which doesn't get printed. */
296 tempstr = (char *) alloca (nargs);
300 if (exp->elts[pc].opcode != OP_LONG
301 || exp->elts[pc + 1].type
302 != builtin_type (exp->gdbarch)->builtin_char)
304 /* Not a simple array of char, use regular array
312 longest_to_int (exp->elts[pc + 2].longconst);
319 struct value_print_options opts;
321 get_user_print_options (&opts);
322 LA_PRINT_STRING (stream, builtin_type (exp->gdbarch)->builtin_char,
323 (gdb_byte *) tempstr, nargs - 1, NULL, 0, &opts);
328 fputs_filtered (" {", stream);
329 for (tem = 0; tem < nargs; tem++)
333 fputs_filtered (", ", stream);
335 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
337 fputs_filtered ("}", stream);
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 print_subexp (exp, pos, stream, PREC_SUFFIX);
359 fputs_filtered ("(", stream);
360 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
361 fputs_filtered (opcode == TERNOP_SLICE ? " : " : " UP ", stream);
362 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
363 fputs_filtered (")", stream);
366 case STRUCTOP_STRUCT:
367 tem = longest_to_int (exp->elts[pc + 1].longconst);
368 (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
369 print_subexp (exp, pos, stream, PREC_SUFFIX);
370 fputs_filtered (".", stream);
371 fputs_filtered (&exp->elts[pc + 2].string, stream);
374 /* Will not occur for Modula-2. */
376 tem = longest_to_int (exp->elts[pc + 1].longconst);
377 (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
378 print_subexp (exp, pos, stream, PREC_SUFFIX);
379 fputs_filtered ("->", stream);
380 fputs_filtered (&exp->elts[pc + 2].string, stream);
383 case STRUCTOP_MEMBER:
384 print_subexp (exp, pos, stream, PREC_SUFFIX);
385 fputs_filtered (".*", stream);
386 print_subexp (exp, pos, stream, PREC_SUFFIX);
390 print_subexp (exp, pos, stream, PREC_SUFFIX);
391 fputs_filtered ("->*", stream);
392 print_subexp (exp, pos, stream, PREC_SUFFIX);
395 case BINOP_SUBSCRIPT:
396 print_subexp (exp, pos, stream, PREC_SUFFIX);
397 fputs_filtered ("[", stream);
398 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
399 fputs_filtered ("]", stream);
402 case UNOP_POSTINCREMENT:
403 print_subexp (exp, pos, stream, PREC_SUFFIX);
404 fputs_filtered ("++", stream);
407 case UNOP_POSTDECREMENT:
408 print_subexp (exp, pos, stream, PREC_SUFFIX);
409 fputs_filtered ("--", stream);
414 if ((int) prec > (int) PREC_PREFIX)
415 fputs_filtered ("(", stream);
416 fputs_filtered ("(", stream);
417 type_print (exp->elts[pc + 1].type, "", stream, 0);
418 fputs_filtered (") ", stream);
419 print_subexp (exp, pos, stream, PREC_PREFIX);
420 if ((int) prec > (int) PREC_PREFIX)
421 fputs_filtered (")", stream);
425 if ((int) prec > (int) PREC_PREFIX)
426 fputs_filtered ("(", stream);
427 fputs_filtered ("(", stream);
428 print_subexp (exp, pos, stream, PREC_PREFIX);
429 fputs_filtered (") ", stream);
430 print_subexp (exp, pos, stream, PREC_PREFIX);
431 if ((int) prec > (int) PREC_PREFIX)
432 fputs_filtered (")", stream);
435 case UNOP_DYNAMIC_CAST:
436 case UNOP_REINTERPRET_CAST:
437 fputs_filtered (opcode == UNOP_DYNAMIC_CAST ? "dynamic_cast"
438 : "reinterpret_cast", stream);
439 fputs_filtered ("<", stream);
440 print_subexp (exp, pos, stream, PREC_PREFIX);
441 fputs_filtered ("> (", stream);
442 print_subexp (exp, pos, stream, PREC_PREFIX);
443 fputs_filtered (")", stream);
448 if ((int) prec > (int) PREC_PREFIX)
449 fputs_filtered ("(", stream);
450 if (TYPE_CODE (exp->elts[pc + 1].type) == TYPE_CODE_FUNC
451 && exp->elts[pc + 3].opcode == OP_LONG)
453 struct value_print_options opts;
455 /* We have a minimal symbol fn, probably. It's encoded
456 as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address).
457 Swallow the OP_LONG (including both its opcodes); ignore
458 its type; print the value in the type of the MEMVAL. */
460 val = value_at_lazy (exp->elts[pc + 1].type,
461 (CORE_ADDR) exp->elts[pc + 5].longconst);
462 get_no_prettyformat_print_options (&opts);
463 value_print (val, stream, &opts);
467 fputs_filtered ("{", stream);
468 type_print (exp->elts[pc + 1].type, "", stream, 0);
469 fputs_filtered ("} ", stream);
470 print_subexp (exp, pos, stream, PREC_PREFIX);
472 if ((int) prec > (int) PREC_PREFIX)
473 fputs_filtered (")", stream);
476 case UNOP_MEMVAL_TYPE:
477 if ((int) prec > (int) PREC_PREFIX)
478 fputs_filtered ("(", stream);
479 fputs_filtered ("{", stream);
480 print_subexp (exp, pos, stream, PREC_PREFIX);
481 fputs_filtered ("} ", stream);
482 print_subexp (exp, pos, stream, PREC_PREFIX);
483 if ((int) prec > (int) PREC_PREFIX)
484 fputs_filtered (")", stream);
487 case BINOP_ASSIGN_MODIFY:
488 opcode = exp->elts[pc + 1].opcode;
490 myprec = PREC_ASSIGN;
494 for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
495 if (op_print_tab[tem].opcode == opcode)
497 op_str = op_print_tab[tem].string;
500 if (op_print_tab[tem].opcode != opcode)
501 /* Not found; don't try to keep going because we don't know how
502 to interpret further elements. */
503 error (_("Invalid expression"));
510 if (exp->language_defn->la_name_of_this)
511 fputs_filtered (exp->language_defn->la_name_of_this, stream);
513 fprintf_filtered (stream, _("<language %s has no 'this'>"),
514 exp->language_defn->la_name);
519 case MULTI_SUBSCRIPT:
521 nargs = longest_to_int (exp->elts[pc + 1].longconst);
522 print_subexp (exp, pos, stream, PREC_SUFFIX);
523 fprintf_unfiltered (stream, " [");
524 for (tem = 0; tem < nargs; tem++)
527 fprintf_unfiltered (stream, ", ");
528 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
530 fprintf_unfiltered (stream, "]");
535 fprintf_unfiltered (stream, "VAL(");
536 type_print (exp->elts[pc + 1].type, "", stream, 0);
537 fprintf_unfiltered (stream, ",");
538 print_subexp (exp, pos, stream, PREC_PREFIX);
539 fprintf_unfiltered (stream, ")");
544 type_instance_flags flags
545 = (type_instance_flag_value) longest_to_int (exp->elts[pc + 1].longconst);
546 LONGEST count = exp->elts[pc + 2].longconst;
552 fputs_unfiltered ("TypeInstance(", stream);
555 type_print (exp->elts[(*pos)++].type, "", stream, 0);
557 fputs_unfiltered (",", stream);
559 fputs_unfiltered (",", stream);
560 /* Ending COUNT and ending TYPE_INSTANCE. */
562 print_subexp (exp, pos, stream, PREC_PREFIX);
564 if (flags & TYPE_INSTANCE_FLAG_CONST)
565 fputs_unfiltered (",const", stream);
566 if (flags & TYPE_INSTANCE_FLAG_VOLATILE)
567 fputs_unfiltered (",volatile", stream);
569 fputs_unfiltered (")", stream);
575 enum range_type range_type;
577 range_type = (enum range_type)
578 longest_to_int (exp->elts[pc + 1].longconst);
581 fputs_filtered ("RANGE(", stream);
582 if (range_type == HIGH_BOUND_DEFAULT
583 || range_type == NONE_BOUND_DEFAULT)
584 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
585 fputs_filtered ("..", stream);
586 if (range_type == LOW_BOUND_DEFAULT
587 || range_type == NONE_BOUND_DEFAULT)
588 print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
589 fputs_filtered (")", stream);
597 for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
598 if (op_print_tab[tem].opcode == opcode)
600 op_str = op_print_tab[tem].string;
601 myprec = op_print_tab[tem].precedence;
602 assoc = op_print_tab[tem].right_assoc;
605 if (op_print_tab[tem].opcode != opcode)
606 /* Not found; don't try to keep going because we don't know how
607 to interpret further elements. For example, this happens
608 if opcode is OP_TYPE. */
609 error (_("Invalid expression"));
612 /* Note that PREC_BUILTIN will always emit parentheses. */
613 if ((int) myprec < (int) prec)
614 fputs_filtered ("(", stream);
615 if ((int) opcode > (int) BINOP_END)
619 /* Unary postfix operator. */
620 print_subexp (exp, pos, stream, PREC_SUFFIX);
621 fputs_filtered (op_str, stream);
625 /* Unary prefix operator. */
626 fputs_filtered (op_str, stream);
627 if (myprec == PREC_BUILTIN_FUNCTION)
628 fputs_filtered ("(", stream);
629 print_subexp (exp, pos, stream, PREC_PREFIX);
630 if (myprec == PREC_BUILTIN_FUNCTION)
631 fputs_filtered (")", stream);
636 /* Binary operator. */
637 /* Print left operand.
638 If operator is right-associative,
639 increment precedence for this operand. */
640 print_subexp (exp, pos, stream,
641 (enum precedence) ((int) myprec + assoc));
642 /* Print the operator itself. */
644 fprintf_filtered (stream, " %s= ", op_str);
645 else if (op_str[0] == ',')
646 fprintf_filtered (stream, "%s ", op_str);
648 fprintf_filtered (stream, " %s ", op_str);
649 /* Print right operand.
650 If operator is left-associative,
651 increment precedence for this operand. */
652 print_subexp (exp, pos, stream,
653 (enum precedence) ((int) myprec + !assoc));
656 if ((int) myprec < (int) prec)
657 fputs_filtered (")", stream);
660 /* Return the operator corresponding to opcode OP as
661 a string. NULL indicates that the opcode was not found in the
662 current language table. */
664 op_string (enum exp_opcode op)
667 const struct op_print *op_print_tab;
669 op_print_tab = current_language->la_op_print_tab;
670 for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
671 if (op_print_tab[tem].opcode == op)
672 return op_print_tab[tem].string;
676 /* Support for dumping the raw data from expressions in a human readable
679 static int dump_subexp_body (struct expression *exp, struct ui_file *, int);
681 /* Name for OPCODE, when it appears in expression EXP. */
684 op_name (struct expression *exp, enum exp_opcode opcode)
686 return exp->language_defn->la_exp_desc->op_name (opcode);
689 /* Default name for the standard operator OPCODE (i.e., one defined in
690 the definition of enum exp_opcode). */
693 op_name_standard (enum exp_opcode opcode)
701 xsnprintf (buf, sizeof (buf), "<unknown %d>", opcode);
707 #include "std-operator.def"
712 /* Print a raw dump of expression EXP to STREAM.
713 NOTE, if non-NULL, is printed as extra explanatory text. */
716 dump_raw_expression (struct expression *exp, struct ui_file *stream,
723 fprintf_filtered (stream, "Dump of expression @ ");
724 gdb_print_host_address (exp, stream);
726 fprintf_filtered (stream, ", %s:", note);
727 fprintf_filtered (stream, "\n\tLanguage %s, %d elements, %ld bytes each.\n",
728 exp->language_defn->la_name, exp->nelts,
729 (long) sizeof (union exp_element));
730 fprintf_filtered (stream, "\t%5s %20s %16s %s\n", "Index", "Opcode",
731 "Hex Value", "String Value");
732 for (elt = 0; elt < exp->nelts; elt++)
734 fprintf_filtered (stream, "\t%5d ", elt);
736 const char *opcode_name = op_name (exp, exp->elts[elt].opcode);
737 fprintf_filtered (stream, "%20s ", opcode_name);
739 print_longest (stream, 'd', 0, exp->elts[elt].longconst);
740 fprintf_filtered (stream, " ");
742 for (eltscan = (char *) &exp->elts[elt],
743 eltsize = sizeof (union exp_element);
747 fprintf_filtered (stream, "%c",
748 isprint (*eltscan) ? (*eltscan & 0xFF) : '.');
750 fprintf_filtered (stream, "\n");
754 /* Dump the subexpression of prefix expression EXP whose operator is at
755 position ELT onto STREAM. Returns the position of the next
756 subexpression in EXP. */
759 dump_subexp (struct expression *exp, struct ui_file *stream, int elt)
761 static int indent = 0;
764 fprintf_filtered (stream, "\n");
765 fprintf_filtered (stream, "\t%5d ", elt);
767 for (i = 1; i <= indent; i++)
768 fprintf_filtered (stream, " ");
771 fprintf_filtered (stream, "%-20s ", op_name (exp, exp->elts[elt].opcode));
773 elt = dump_subexp_body (exp, stream, elt);
780 /* Dump the operands of prefix expression EXP whose opcode is at
781 position ELT onto STREAM. Returns the position of the next
782 subexpression in EXP. */
785 dump_subexp_body (struct expression *exp, struct ui_file *stream, int elt)
787 return exp->language_defn->la_exp_desc->dump_subexp_body (exp, stream, elt);
790 /* Default value for subexp_body in exp_descriptor vector. */
793 dump_subexp_body_standard (struct expression *exp,
794 struct ui_file *stream, int elt)
796 int opcode = exp->elts[elt++].opcode;
802 elt = dump_subexp (exp, stream, elt);
812 case BINOP_LOGICAL_AND:
813 case BINOP_LOGICAL_OR:
814 case BINOP_BITWISE_AND:
815 case BINOP_BITWISE_IOR:
816 case BINOP_BITWISE_XOR:
826 case BINOP_SUBSCRIPT:
831 case BINOP_ASSIGN_MODIFY:
835 case STRUCTOP_MEMBER:
837 elt = dump_subexp (exp, stream, elt);
840 case UNOP_LOGICAL_NOT:
841 case UNOP_COMPLEMENT:
844 case UNOP_PREINCREMENT:
845 case UNOP_POSTINCREMENT:
846 case UNOP_PREDECREMENT:
847 case UNOP_POSTDECREMENT:
860 elt = dump_subexp (exp, stream, elt);
863 fprintf_filtered (stream, "Type @");
864 gdb_print_host_address (exp->elts[elt].type, stream);
865 fprintf_filtered (stream, " (");
866 type_print (exp->elts[elt].type, NULL, stream, 0);
867 fprintf_filtered (stream, "), value %ld (0x%lx)",
868 (long) exp->elts[elt + 1].longconst,
869 (long) exp->elts[elt + 1].longconst);
873 fprintf_filtered (stream, "Type @");
874 gdb_print_host_address (exp->elts[elt].type, stream);
875 fprintf_filtered (stream, " (");
876 type_print (exp->elts[elt].type, NULL, stream, 0);
877 fprintf_filtered (stream, "), value ");
878 print_floating (exp->elts[elt + 1].floatconst,
879 exp->elts[elt].type, stream);
883 fprintf_filtered (stream, "Block @");
884 gdb_print_host_address (exp->elts[elt].block, stream);
885 fprintf_filtered (stream, ", symbol @");
886 gdb_print_host_address (exp->elts[elt + 1].symbol, stream);
887 fprintf_filtered (stream, " (%s)",
888 SYMBOL_PRINT_NAME (exp->elts[elt + 1].symbol));
891 case OP_VAR_MSYM_VALUE:
892 fprintf_filtered (stream, "Objfile @");
893 gdb_print_host_address (exp->elts[elt].objfile, stream);
894 fprintf_filtered (stream, ", msymbol @");
895 gdb_print_host_address (exp->elts[elt + 1].msymbol, stream);
896 fprintf_filtered (stream, " (%s)",
897 MSYMBOL_PRINT_NAME (exp->elts[elt + 1].msymbol));
900 case OP_VAR_ENTRY_VALUE:
901 fprintf_filtered (stream, "Entry value of symbol @");
902 gdb_print_host_address (exp->elts[elt].symbol, stream);
903 fprintf_filtered (stream, " (%s)",
904 SYMBOL_PRINT_NAME (exp->elts[elt].symbol));
908 fprintf_filtered (stream, "History element %ld",
909 (long) exp->elts[elt].longconst);
913 fprintf_filtered (stream, "Register $%s", &exp->elts[elt + 1].string);
914 elt += 3 + BYTES_TO_EXP_ELEM (exp->elts[elt].longconst + 1);
917 fprintf_filtered (stream, "Internal var @");
918 gdb_print_host_address (exp->elts[elt].internalvar, stream);
919 fprintf_filtered (stream, " (%s)",
920 internalvar_name (exp->elts[elt].internalvar));
924 case OP_F77_UNDETERMINED_ARGLIST:
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:
1130 fprintf_filtered (stream, "Unknown format");
1137 dump_prefix_expression (struct expression *exp, struct ui_file *stream)
1141 fprintf_filtered (stream, "Dump of expression @ ");
1142 gdb_print_host_address (exp, stream);
1143 fputs_filtered (", after conversion to prefix form:\nExpression: `", stream);
1144 print_expression (exp, stream);
1145 fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %ld bytes each.\n",
1146 exp->language_defn->la_name, exp->nelts,
1147 (long) sizeof (union exp_element));
1148 fputs_filtered ("\n", stream);
1150 for (elt = 0; elt < exp->nelts;)
1151 elt = dump_subexp (exp, stream, elt);
1152 fputs_filtered ("\n", stream);