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-rw-r--r--gdb/expprint.c324
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diff --git a/gdb/expprint.c b/gdb/expprint.c
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--- a/gdb/expprint.c
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@@ -1,324 +0,0 @@
-/* Print in infix form a struct expression.
- Copyright (C) 1986, 1989 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-GDB 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 1, or (at your option)
-any later version.
-
-GDB 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 GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <stdio.h>
-#include "defs.h"
-#include "symtab.h"
-#include "param.h"
-#include "expression.h"
-#include "value.h"
-
-
-/* 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
-{
- 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},
- };
-
-static void print_subexp ();
-
-void
-print_expression (exp, stream)
- struct expression *exp;
- FILE *stream;
-{
- int pc = 0;
- print_subexp (exp, &pc, stream, PREC_NULL);
-}
-
-/* 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;
-{
- 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, 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;
- fprintf (stream, "%s", SYMBOL_NAME (exp->elts[pc + 1].symbol));
- return;
-
- case OP_LAST:
- (*pos) += 2;
- fprintf (stream, "$%d", (int) exp->elts[pc + 1].longconst);
- return;
-
- case OP_REGISTER:
- (*pos) += 2;
- fprintf (stream, "$%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;
-
- 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;
-
- 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;
-
- 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;
-
- case BINOP_SUBSCRIPT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (stream, "[");
- print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
- fprintf (stream, "]");
- return;
-
- case UNOP_POSTINCREMENT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (stream, "++");
- return;
-
- case UNOP_POSTDECREMENT:
- print_subexp (exp, pos, stream, PREC_SUFFIX);
- fprintf (stream, "--");
- return;
-
- 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;
-
- 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;
-
- 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;
- }
-
- case OP_THIS:
- ++(*pos);
- fprintf (stream, "this");
- return;
-
- 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;
- }
- }
-
- 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);
- }
- 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, ")");
-}
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