/* Print in infix form a struct expression.
- Copyright (C) 1986 Free Software Foundation, Inc.
-GDB is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY. No author or distributor accepts responsibility to anyone
-for the consequences of using it or for whether it serves any
-particular purpose or works at all, unless he says so in writing.
-Refer to the GDB General Public License for full details.
+ Copyright (C) 1986-2022 Free Software Foundation, Inc.
-Everyone is granted permission to copy, modify and redistribute GDB,
-but only under the conditions described in the GDB General Public
-License. A copy of this license is supposed to have been given to you
-along with GDB so you can know your rights and responsibilities. It
-should be in a file named COPYING. Among other things, the copyright
-notice and this notice must be preserved on all copies.
+ This file is part of GDB.
-In other words, go ahead and share GDB, but don't try to stop
-anyone else from sharing it farther. Help stamp out software hoarding!
-*/
+ 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.
+
+ 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 "gdbtypes.h"
#include "expression.h"
-
-#include <stdio.h>
-\f
-/* These codes indicate operator precedences, least tightly binding first. */
-/* Adding 1 to a precedence value is done for binary operators,
- on the operand which is more tightly bound, so that operators
- of equal precedence within that operand will get parentheses. */
-/* PREC_HYPER and PREC_ABOVE_COMMA are not the precedence of any operator;
- they are used as the "surrounding precedence" to force
- various kinds of things to be parenthesized. */
-enum precedence
-{ PREC_NULL, PREC_COMMA, PREC_ABOVE_COMMA, PREC_ASSIGN, PREC_OR, PREC_AND,
- PREC_LOGIOR, PREC_LOGAND, PREC_LOGXOR, PREC_EQUAL, PREC_ORDER,
- PREC_SHIFT, PREC_ADD, PREC_MUL, PREC_REPEAT,
- PREC_HYPER, PREC_PREFIX, PREC_SUFFIX };
-
-/* Table mapping opcodes into strings for printing operators
- and precedences of the operators. */
-
-struct op_print
+#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)
{
- char *string;
- enum exp_opcode opcode;
- /* Precedence of operator. These values are used only by comparisons. */
- enum precedence precedence;
- int right_assoc;
-};
-
-static struct op_print op_print_tab[] =
- {
- {",", BINOP_COMMA, PREC_COMMA, 0},
- {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
- {"||", BINOP_OR, PREC_OR, 0},
- {"&&", BINOP_AND, PREC_AND, 0},
- {"|", BINOP_LOGIOR, PREC_LOGIOR, 0},
- {"&", BINOP_LOGAND, PREC_LOGAND, 0},
- {"^", BINOP_LOGXOR, PREC_LOGXOR, 0},
- {"==", BINOP_EQUAL, PREC_EQUAL, 0},
- {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
- {"<=", BINOP_LEQ, PREC_ORDER, 0},
- {">=", BINOP_GEQ, PREC_ORDER, 0},
- {">", BINOP_GTR, PREC_ORDER, 0},
- {"<", BINOP_LESS, PREC_ORDER, 0},
- {">>", BINOP_RSH, PREC_SHIFT, 0},
- {"<<", BINOP_LSH, PREC_SHIFT, 0},
- {"+", BINOP_ADD, PREC_ADD, 0},
- {"-", BINOP_SUB, PREC_ADD, 0},
- {"*", BINOP_MUL, PREC_MUL, 0},
- {"/", BINOP_DIV, PREC_MUL, 0},
- {"%", BINOP_REM, PREC_MUL, 0},
- {"@", BINOP_REPEAT, PREC_REPEAT, 0},
- {"-", UNOP_NEG, PREC_PREFIX, 0},
- {"!", UNOP_ZEROP, PREC_PREFIX, 0},
- {"~", UNOP_LOGNOT, PREC_PREFIX, 0},
- {"*", UNOP_IND, PREC_PREFIX, 0},
- {"&", UNOP_ADDR, PREC_PREFIX, 0},
- {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
- {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
- {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
- /* C++ */
- {"::", BINOP_SCOPE, PREC_PREFIX, 0},
- };
-\f
-static void print_subexp ();
+ switch (opcode)
+ {
+ default:
+ {
+ static char buf[30];
+
+ 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 int tem;
- register int pc;
- int 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;
-
- pc = (*pos)++;
- opcode = exp->elts[pc].opcode;
- switch (opcode)
- {
- case OP_SCOPE:
- myprec = PREC_PREFIX;
- assoc = 0;
- (*pos) += 2;
- print_subexp (exp, pos, stream, (int) myprec + assoc);
- fprintf (stream, " :: ");
- nargs = strlen (&exp->elts[pc + 2].string);
- (*pos) += 1 + (nargs + sizeof (union exp_element)) / sizeof (union exp_element);
-
- fprintf (stream, &exp->elts[pc + 2].string);
- return;
-
- case OP_LONG:
- (*pos) += 3;
- value_print (value_from_long (exp->elts[pc + 1].type,
- exp->elts[pc + 2].longconst),
- stream);
- return;
-
- case OP_DOUBLE:
- (*pos) += 3;
- value_print (value_from_double (exp->elts[pc + 1].type,
- exp->elts[pc + 2].doubleconst),
- stream);
- return;
-
- case OP_VAR_VALUE:
- (*pos) += 2;
- fprintf (stream, "%s", SYMBOL_NAME (exp->elts[pc + 1].symbol));
- return;
- case OP_LAST:
- (*pos) += 2;
- fprintf (stream, "$%d", exp->elts[pc + 1].longconst);
- return;
-
- case OP_REGISTER:
- (*pos) += 2;
- fprintf (stream, "$%s", reg_names[exp->elts[pc + 1].longconst]);
- return;
-
- case OP_INTERNALVAR:
- (*pos) += 2;
- fprintf (stream, "$%s",
- internalvar_name (exp->elts[pc + 1].internalvar));
- return;
-
- case OP_FUNCALL:
- (*pos) += 2;
- nargs = 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 OP_STRING:
- nargs = strlen (&exp->elts[pc + 1].string);
- (*pos) += 2 + (nargs + sizeof (union exp_element)) / sizeof (union exp_element);
- fprintf (stream, "\"");
- for (tem = 0; tem < nargs; tem++)
- printchar ((&exp->elts[pc + 1].string)[tem], stream);
- fprintf (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 TERNOP_COND:
- if ((int) prec > (int) PREC_COMMA)
- fprintf (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);
- fprintf (stream, " ? ");
- print_subexp (exp, pos, stream, PREC_HYPER);
- fprintf (stream, " : ");
- print_subexp (exp, pos, stream, PREC_HYPER);
- if ((int) prec > (int) PREC_COMMA)
- fprintf (stream, ")");
- 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 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);
- fprintf (stream, ".%s", &exp->elts[pc + 1].string);
- 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_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);
- fprintf (stream, "->%s", &exp->elts[pc + 1].string);
- 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));
+}
- case BINOP_SUBSCRIPT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (stream, "[");
- print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
- fprintf (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 UNOP_POSTINCREMENT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (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_POSTDECREMENT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (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_CAST:
- (*pos) += 2;
- if ((int) prec > (int) PREC_PREFIX)
- fprintf (stream, "(");
- fprintf (stream, "(");
- type_print (exp->elts[pc + 1].type, "", stream, 0);
- fprintf (stream, ") ");
- print_subexp (exp, pos, stream, PREC_PREFIX);
- if ((int) prec > (int) PREC_PREFIX)
- fprintf (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_MEMVAL:
- (*pos) += 2;
- if ((int) prec > (int) PREC_PREFIX)
- fprintf (stream, "(");
- fprintf (stream, "{");
- type_print (exp->elts[pc + 1].type, "", stream, 0);
- fprintf (stream, "} ");
- print_subexp (exp, pos, stream, PREC_PREFIX);
- if ((int) prec > (int) PREC_PREFIX)
- fprintf (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 BINOP_ASSIGN_MODIFY:
- opcode = exp->elts[pc + 1].opcode;
- (*pos) += 2;
- myprec = PREC_ASSIGN;
- assoc = 1;
- assign_modify = 1;
- for (tem = 0; tem < sizeof op_print_tab / sizeof op_print_tab[0]; 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,
+ 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");
+}
+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;
default:
- for (tem = 0; tem < sizeof op_print_tab / sizeof op_print_tab[0]; 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;
- }
+ fputs_filtered (_("ordinary "), stream);
+ break;
}
- if ((int) myprec < (int) prec)
- fprintf (stream, "(");
- if ((int) opcode > (int) BINOP_END)
- {
- /* Unary prefix operator. */
- fprintf (stream, "%s", op_str);
- print_subexp (exp, pos, stream, PREC_PREFIX);
- }
+ if ((flags & C_CHAR) != 0)
+ fputs_filtered (_("char"), stream);
else
- {
- /* Binary operator. */
- /* Print left operand.
- If operator is right-associative,
- increment precedence for this operand. */
- print_subexp (exp, pos, stream, (int) myprec + assoc);
- /* Print the operator itself. */
- if (assign_modify)
- fprintf (stream, " %s= ", op_str);
- else if (op_str[0] == ',')
- fprintf (stream, "%s ", op_str);
- else
- fprintf (stream, " %s ", op_str);
- /* Print right operand.
- If operator is left-associative,
- increment precedence for this operand. */
- print_subexp (exp, pos, stream, (int) myprec + !assoc);
- }
- if ((int) myprec < (int) prec)
- fprintf (stream, ")");
+ fputs_filtered (_("string"), stream);
+ fputs_filtered ("\n", stream);
+}
+
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ enum range_flag flags)
+{
+ 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");
}
+
+void
+dump_for_expression (struct ui_file *stream, int depth,
+ const std::unique_ptr<ada_component> &comp)
+{
+ comp->dump (stream, depth);
+}
+
+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