/* Print in infix form a struct expression.
- Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1986-2022 Free Software Foundation, Inc.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This file is part of GDB.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "symtab.h"
#include "value.h"
#include "language.h"
#include "parser-defs.h"
+#include "user-regs.h" /* For user_reg_map_regnum_to_name. */
+#include "target.h"
+#include "block.h"
+#include "objfiles.h"
+#include "valprint.h"
+#include "cli/cli-style.h"
+#include "c-lang.h"
+#include "expop.h"
+#include "ada-exp.h"
+
+#include <ctype.h>
+
+/* Default name for the standard operator OPCODE (i.e., one defined in
+ the definition of enum exp_opcode). */
+
+const char *
+op_name (enum exp_opcode opcode)
+{
+ switch (opcode)
+ {
+ default:
+ {
+ static char buf[30];
-/* Prototypes for local functions */
-
-static void
-print_subexp PARAMS ((struct expression *, int *, FILE *, enum precedence));
-
-static void
-print_simple_m2_func PARAMS ((char *, struct expression *, int *, FILE *));
+ xsnprintf (buf, sizeof (buf), "<unknown %d>", opcode);
+ return buf;
+ }
+#define OP(name) \
+ case name: \
+ return #name ;
+#include "std-operator.def"
+#undef OP
+ }
+}
void
-print_expression (exp, stream)
- struct expression *exp;
- FILE *stream;
+dump_prefix_expression (struct expression *exp, struct ui_file *stream)
{
- int pc = 0;
- print_subexp (exp, &pc, stream, PREC_NULL);
+ exp->op->dump (stream, 0);
}
-/* Print the subexpression of EXP that starts in position POS, on STREAM.
- PREC is the precedence of the surrounding operator;
- if the precedence of the main operator of this subexpression is less,
- parentheses are needed here. */
-
-static void
-print_subexp (exp, pos, stream, prec)
- register struct expression *exp;
- register int *pos;
- FILE *stream;
- enum precedence prec;
+namespace expr
{
- register unsigned tem;
- register const struct op_print *op_print_tab;
- register int pc;
- unsigned nargs;
- register char *op_str;
- int assign_modify = 0;
- enum exp_opcode opcode;
- enum precedence myprec;
- /* Set to 1 for a right-associative operator. */
- int assoc;
- value val;
-
- op_print_tab = exp->language_defn->la_op_print_tab;
- pc = (*pos)++;
- opcode = exp->elts[pc].opcode;
- switch (opcode)
- {
- /* Common ops */
-
- case OP_SCOPE:
- myprec = PREC_PREFIX;
- assoc = 0;
- (*pos) += 2;
- print_subexp (exp, pos, stream,
- (enum precedence) ((int) myprec + assoc));
- fputs_filtered (" :: ", stream);
- nargs = strlen (&exp->elts[pc + 2].string);
- (*pos) += 1 + (nargs + sizeof (union exp_element)) / sizeof (union exp_element);
-
- fputs_filtered (&exp->elts[pc + 2].string, stream);
- return;
-
- case OP_LONG:
- (*pos) += 3;
- value_print (value_from_longest (exp->elts[pc + 1].type,
- exp->elts[pc + 2].longconst),
- stream, 0, Val_no_prettyprint);
- return;
-
- case OP_DOUBLE:
- (*pos) += 3;
- value_print (value_from_double (exp->elts[pc + 1].type,
- exp->elts[pc + 2].doubleconst),
- stream, 0, Val_no_prettyprint);
- return;
-
- case OP_VAR_VALUE:
- (*pos) += 2;
- fputs_filtered (SYMBOL_NAME (exp->elts[pc + 1].symbol), stream);
- return;
-
- case OP_LAST:
- (*pos) += 2;
- fprintf_filtered (stream, "$%d",
- longest_to_int (exp->elts[pc + 1].longconst));
- return;
-
- case OP_REGISTER:
- (*pos) += 2;
- fprintf_filtered (stream, "$%s",
- reg_names[longest_to_int (exp->elts[pc + 1].longconst)]);
- return;
-
- case OP_BOOL:
- (*pos) += 2;
- fprintf_filtered (stream, "%s",
- longest_to_int (exp->elts[pc + 1].longconst)
- ? "TRUE" : "FALSE");
- return;
-
- case OP_INTERNALVAR:
- (*pos) += 2;
- fprintf_filtered (stream, "$%s",
- internalvar_name (exp->elts[pc + 1].internalvar));
- return;
- case OP_FUNCALL:
- (*pos) += 2;
- nargs = longest_to_int (exp->elts[pc + 1].longconst);
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fputs_filtered (" (", stream);
- for (tem = 0; tem < nargs; tem++)
- {
- if (tem != 0)
- fputs_filtered (", ", stream);
- print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
- }
- fputs_filtered (")", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, enum exp_opcode op)
+{
+ fprintf_filtered (stream, _("%*sOperation: %s\n"), depth, "", op_name (op));
+}
- case OP_STRING:
- nargs = strlen (&exp->elts[pc + 1].string);
- (*pos) += 2 + (nargs + sizeof (union exp_element)) / sizeof (union exp_element);
- /* local_printstr will print using the current repeat count threshold.
- If necessary, we can temporarily set it to zero, or pass it as an
- additional parameter to local_printstr. -fnf */
- local_printstr (stream, &exp->elts[pc + 1].string, nargs, 0);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, const std::string &str)
+{
+ fprintf_filtered (stream, _("%*sString: %s\n"), depth, "", str.c_str ());
+}
- case TERNOP_COND:
- if ((int) prec > (int) PREC_COMMA)
- fputs_filtered ("(", stream);
- /* Print the subexpressions, forcing parentheses
- around any binary operations within them.
- This is more parentheses than are strictly necessary,
- but it looks clearer. */
- print_subexp (exp, pos, stream, PREC_HYPER);
- fputs_filtered (" ? ", stream);
- print_subexp (exp, pos, stream, PREC_HYPER);
- fputs_filtered (" : ", stream);
- print_subexp (exp, pos, stream, PREC_HYPER);
- if ((int) prec > (int) PREC_COMMA)
- fputs_filtered (")", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, struct type *type)
+{
+ fprintf_filtered (stream, _("%*sType: "), depth, "");
+ type_print (type, nullptr, stream, 0);
+ fprintf_filtered (stream, "\n");
+}
- case STRUCTOP_STRUCT:
- tem = strlen (&exp->elts[pc + 1].string);
- (*pos) += 2 + (tem + sizeof (union exp_element)) / sizeof (union exp_element);
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fputs_filtered (".", stream);
- fputs_filtered (&exp->elts[pc + 1].string, stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, CORE_ADDR addr)
+{
+ fprintf_filtered (stream, _("%*sConstant: %s\n"), depth, "",
+ core_addr_to_string (addr));
+}
- /* Will not occur for Modula-2 */
- case STRUCTOP_PTR:
- tem = strlen (&exp->elts[pc + 1].string);
- (*pos) += 2 + (tem + sizeof (union exp_element)) / sizeof (union exp_element);
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fputs_filtered ("->", stream);
- fputs_filtered (&exp->elts[pc + 1].string, stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, internalvar *ivar)
+{
+ fprintf_filtered (stream, _("%*sInternalvar: $%s\n"), depth, "",
+ internalvar_name (ivar));
+}
- case BINOP_SUBSCRIPT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fputs_filtered ("[", stream);
- print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
- fputs_filtered ("]", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, symbol *sym)
+{
+ fprintf_filtered (stream, _("%*sSymbol: %s\n"), depth, "",
+ sym->print_name ());
+}
- case UNOP_POSTINCREMENT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fputs_filtered ("++", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ bound_minimal_symbol msym)
+{
+ fprintf_filtered (stream, _("%*sMinsym %s in objfile %s\n"), depth, "",
+ msym.minsym->print_name (), objfile_name (msym.objfile));
+}
- case UNOP_POSTDECREMENT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fputs_filtered ("--", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth, const block *bl)
+{
+ fprintf_filtered (stream, _("%*sBlock: %p\n"), depth, "", bl);
+}
- case UNOP_CAST:
- (*pos) += 2;
- if ((int) prec > (int) PREC_PREFIX)
- fputs_filtered ("(", stream);
- fputs_filtered ("(", stream);
- type_print (exp->elts[pc + 1].type, "", stream, 0);
- fputs_filtered (") ", stream);
- print_subexp (exp, pos, stream, PREC_PREFIX);
- if ((int) prec > (int) PREC_PREFIX)
- fputs_filtered (")", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ const block_symbol &sym)
+{
+ fprintf_filtered (stream, _("%*sBlock symbol:\n"), depth, "");
+ dump_for_expression (stream, depth + 1, sym.symbol);
+ dump_for_expression (stream, depth + 1, sym.block);
+}
- case UNOP_MEMVAL:
- (*pos) += 2;
- if ((int) prec > (int) PREC_PREFIX)
- fputs_filtered ("(", stream);
- if (exp->elts[pc + 1].type->code == TYPE_CODE_FUNC &&
- exp->elts[pc + 3].opcode == OP_LONG) {
- /* We have a minimal symbol fn, probably. It's encoded
- as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address).
- Swallow the OP_LONG (including both its opcodes); ignore
- its type; print the value in the type of the MEMVAL. */
- (*pos) += 4;
- val = value_at_lazy (exp->elts[pc + 1].type,
- (CORE_ADDR) exp->elts[pc + 5].longconst);
- value_print (val, stream, 0, Val_no_prettyprint);
- } else {
- fputs_filtered ("{", stream);
- type_print (exp->elts[pc + 1].type, "", stream, 0);
- fputs_filtered ("} ", stream);
- print_subexp (exp, pos, stream, PREC_PREFIX);
- }
- if ((int) prec > (int) PREC_PREFIX)
- fputs_filtered (")", stream);
- return;
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ type_instance_flags flags)
+{
+ fprintf_filtered (stream, _("%*sType flags: "), depth, "");
+ if (flags & TYPE_INSTANCE_FLAG_CONST)
+ fputs_filtered ("const ", stream);
+ if (flags & TYPE_INSTANCE_FLAG_VOLATILE)
+ fputs_filtered ("volatile", stream);
+ fprintf_filtered (stream, "\n");
+}
- case BINOP_ASSIGN_MODIFY:
- opcode = exp->elts[pc + 1].opcode;
- (*pos) += 2;
- myprec = PREC_ASSIGN;
- assoc = 1;
- assign_modify = 1;
- op_str = "???";
- for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
- if (op_print_tab[tem].opcode == opcode)
- {
- op_str = op_print_tab[tem].string;
- break;
- }
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ enum c_string_type_values flags)
+{
+ fprintf_filtered (stream, _("%*sC string flags: "), depth, "");
+ switch (flags & ~C_CHAR)
+ {
+ case C_WIDE_STRING:
+ fputs_filtered (_("wide "), stream);
+ break;
+ case C_STRING_16:
+ fputs_filtered (_("u16 "), stream);
+ break;
+ case C_STRING_32:
+ fputs_filtered (_("u32 "), stream);
break;
-
- /* C++ ops */
-
- case OP_THIS:
- ++(*pos);
- fputs_filtered ("this", stream);
- return;
-
- /* Modula-2 ops */
-
- case BINOP_MULTI_SUBSCRIPT:
- (*pos) += 2;
- nargs = longest_to_int (exp->elts[pc + 1].longconst);
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (stream, " [");
- for (tem = 0; tem < nargs; tem++)
- {
- if (tem != 0)
- fprintf (stream, ", ");
- print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
- }
- fprintf (stream, "]");
- return;
-
- case BINOP_VAL:
- (*pos)+=2;
- fprintf(stream,"VAL(");
- type_print(exp->elts[pc+1].type,"",stream,0);
- fprintf(stream,",");
- print_subexp(exp,pos,stream,PREC_PREFIX);
- fprintf(stream,")");
- return;
-
- case UNOP_CAP:
- print_simple_m2_func("CAP",exp,pos,stream);
- return;
-
- case UNOP_CHR:
- print_simple_m2_func("CHR",exp,pos,stream);
- return;
-
- case UNOP_ORD:
- print_simple_m2_func("ORD",exp,pos,stream);
- return;
-
- case UNOP_ABS:
- print_simple_m2_func("ABS",exp,pos,stream);
- return;
-
- case UNOP_FLOAT:
- print_simple_m2_func("FLOAT",exp,pos,stream);
- return;
-
- case UNOP_HIGH:
- print_simple_m2_func("HIGH",exp,pos,stream);
- return;
-
- case UNOP_MAX:
- print_simple_m2_func("MAX",exp,pos,stream);
- return;
-
- case UNOP_MIN:
- print_simple_m2_func("MIN",exp,pos,stream);
- return;
-
- case UNOP_ODD:
- print_simple_m2_func("ODD",exp,pos,stream);
- return;
-
- case UNOP_TRUNC:
- print_simple_m2_func("TRUNC",exp,pos,stream);
- return;
-
- case BINOP_INCL:
- case BINOP_EXCL:
- error("print_subexp: Not implemented.");
-
- /* Default ops */
-
default:
- op_str = "???";
- for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
- if (op_print_tab[tem].opcode == opcode)
- {
- op_str = op_print_tab[tem].string;
- myprec = op_print_tab[tem].precedence;
- assoc = op_print_tab[tem].right_assoc;
- break;
- }
- }
-
- if ((int) myprec < (int) prec)
- fputs_filtered ("(", stream);
- if ((int) opcode > (int) BINOP_END)
- {
- /* Unary prefix operator. */
- fputs_filtered (op_str, stream);
- print_subexp (exp, pos, stream, PREC_PREFIX);
- }
- else
- {
- /* Binary operator. */
- /* Print left operand.
- If operator is right-associative,
- increment precedence for this operand. */
- print_subexp (exp, pos, stream,
- (enum precedence) ((int) myprec + assoc));
- /* Print the operator itself. */
- if (assign_modify)
- fprintf_filtered (stream, " %s= ", op_str);
- else if (op_str[0] == ',')
- fprintf_filtered (stream, "%s ", op_str);
- else
- fprintf_filtered (stream, " %s ", op_str);
- /* Print right operand.
- If operator is left-associative,
- increment precedence for this operand. */
- print_subexp (exp, pos, stream,
- (enum precedence) ((int) myprec + !assoc));
+ fputs_filtered (_("ordinary "), stream);
+ break;
}
- if ((int) myprec < (int) prec)
- fputs_filtered (")", stream);
+ if ((flags & C_CHAR) != 0)
+ fputs_filtered (_("char"), stream);
+ else
+ fputs_filtered (_("string"), stream);
+ fputs_filtered ("\n", stream);
}
-/* Print out something of the form <s>(<arg>).
- This is used to print out some builtin Modula-2
- functions.
- FIXME: There is probably some way to get the precedence
- rules to do this (print a unary operand with parens around it). */
-static void
-print_simple_m2_func(s,exp,pos,stream)
- char *s;
- register struct expression *exp;
- register int *pos;
- FILE *stream;
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ enum range_flag flags)
{
- fprintf(stream,"%s(",s);
- print_subexp(exp,pos,stream,PREC_PREFIX);
- fprintf(stream,")");
+ fprintf_filtered (stream, _("%*sRange:"), depth, "");
+ if ((flags & RANGE_LOW_BOUND_DEFAULT) != 0)
+ fputs_filtered (_("low-default "), stream);
+ if ((flags & RANGE_HIGH_BOUND_DEFAULT) != 0)
+ fputs_filtered (_("high-default "), stream);
+ if ((flags & RANGE_HIGH_BOUND_EXCLUSIVE) != 0)
+ fputs_filtered (_("high-exclusive "), stream);
+ if ((flags & RANGE_HAS_STRIDE) != 0)
+ fputs_filtered (_("has-stride"), stream);
+ fprintf_filtered (stream, "\n");
}
-
-/* Return the operator corresponding to opcode OP as
- a string. NULL indicates that the opcode was not found in the
- current language table. */
-char *
-op_string(op)
- enum exp_opcode op;
+
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ const std::unique_ptr<ada_component> &comp)
{
- int tem;
- register const struct op_print *op_print_tab;
+ comp->dump (stream, depth);
+}
- op_print_tab = current_language->la_op_print_tab;
- for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++)
- if (op_print_tab[tem].opcode == op)
- return op_print_tab[tem].string;
- return NULL;
+void
+float_const_operation::dump (struct ui_file *stream, int depth) const
+{
+ fprintf_filtered (stream, _("%*sFloat: "), depth, "");
+ print_floating (m_data.data (), m_type, stream);
+ fprintf_filtered (stream, "\n");
}
+
+} /* namespace expr */
projects / binutils-gdb.git / blobdiff