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binutils-gdb/gdb/expprint.c
Jason Molenda d9fcf2fb1c import gdb-2000-02-01 snapshot
2000-02-02 00:21:19 +00:00

998 lines
27 KiB
C
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/* Print in infix form a struct expression.
Copyright (C) 1986, 1989, 1991, 2000 Free Software Foundation, Inc.
This file is part of GDB.
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 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "language.h"
#include "parser-defs.h"
#ifdef HAVE_CTYPE_H
#include <ctype.h>
#endif
/* Prototypes for local functions */
static void print_subexp (struct expression *, int *, struct ui_file *,
enum precedence);
void
print_expression (exp, stream)
struct expression *exp;
struct ui_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;
struct ui_file *stream;
enum precedence prec;
{
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 = PREC_NULL;
/* Set to 1 for a right-associative operator. */
int assoc = 0;
value_ptr val;
char *tempstr = NULL;
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;
fputs_filtered (type_name_no_tag (exp->elts[pc + 1].type), stream);
fputs_filtered ("::", stream);
nargs = longest_to_int (exp->elts[pc + 2].longconst);
(*pos) += 4 + BYTES_TO_EXP_ELEM (nargs + 1);
fputs_filtered (&exp->elts[pc + 3].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:
{
struct block *b;
(*pos) += 3;
b = exp->elts[pc + 1].block;
if (b != NULL
&& BLOCK_FUNCTION (b) != NULL
&& SYMBOL_SOURCE_NAME (BLOCK_FUNCTION (b)) != NULL)
{
fputs_filtered (SYMBOL_SOURCE_NAME (BLOCK_FUNCTION (b)), stream);
fputs_filtered ("::", stream);
}
fputs_filtered (SYMBOL_SOURCE_NAME (exp->elts[pc + 2].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",
REGISTER_NAME (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;
case OP_NAME:
case OP_EXPRSTRING:
nargs = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
fputs_filtered (&exp->elts[pc + 2].string, stream);
return;
case OP_STRING:
nargs = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1);
/* LA_PRINT_STRING 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 LA_PRINT_STRING. -fnf */
LA_PRINT_STRING (stream, &exp->elts[pc + 2].string, nargs, 1, 0);
return;
case OP_BITSTRING:
nargs = longest_to_int (exp->elts[pc + 1].longconst);
(*pos)
+= 3 + BYTES_TO_EXP_ELEM ((nargs + HOST_CHAR_BIT - 1) / HOST_CHAR_BIT);
fprintf_unfiltered (stream, "B'<unimplemented>'");
return;
case OP_ARRAY:
(*pos) += 3;
nargs = longest_to_int (exp->elts[pc + 2].longconst);
nargs -= longest_to_int (exp->elts[pc + 1].longconst);
nargs++;
tem = 0;
if (exp->elts[pc + 4].opcode == OP_LONG
&& exp->elts[pc + 5].type == builtin_type_char
&& exp->language_defn->la_language == language_c)
{
/* Attempt to print C character arrays using string syntax.
Walk through the args, picking up one character from each
of the OP_LONG expression elements. If any array element
does not match our expection of what we should find for
a simple string, revert back to array printing. Note that
the last expression element is an explicit null terminator
byte, which doesn't get printed. */
tempstr = alloca (nargs);
pc += 4;
while (tem < nargs)
{
if (exp->elts[pc].opcode != OP_LONG
|| exp->elts[pc + 1].type != builtin_type_char)
{
/* Not a simple array of char, use regular array printing. */
tem = 0;
break;
}
else
{
tempstr[tem++] =
longest_to_int (exp->elts[pc + 2].longconst);
pc += 4;
}
}
}
if (tem > 0)
{
LA_PRINT_STRING (stream, tempstr, nargs - 1, 1, 0);
(*pos) = pc;
}
else
{
int is_chill = exp->language_defn->la_language == language_chill;
fputs_filtered (is_chill ? " [" : " {", stream);
for (tem = 0; tem < nargs; tem++)
{
if (tem != 0)
{
fputs_filtered (", ", stream);
}
print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
}
fputs_filtered (is_chill ? "]" : "}", stream);
}
return;
case OP_LABELED:
tem = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
if (exp->language_defn->la_language == language_chill)
{
fputs_filtered (".", stream);
fputs_filtered (&exp->elts[pc + 2].string, stream);
fputs_filtered (exp->elts[*pos].opcode == OP_LABELED ? ", "
: ": ",
stream);
}
else
{
/* Gcc support both these syntaxes. Unsure which is preferred. */
#if 1
fputs_filtered (&exp->elts[pc + 2].string, stream);
fputs_filtered (": ", stream);
#else
fputs_filtered (".", stream);
fputs_filtered (&exp->elts[pc + 2].string, stream);
fputs_filtered ("=", stream);
#endif
}
print_subexp (exp, pos, stream, PREC_SUFFIX);
return;
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;
case TERNOP_SLICE:
case TERNOP_SLICE_COUNT:
print_subexp (exp, pos, stream, PREC_SUFFIX);
fputs_filtered ("(", stream);
print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
fputs_filtered (opcode == TERNOP_SLICE ? " : " : " UP ", stream);
print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
fputs_filtered (")", stream);
return;
case STRUCTOP_STRUCT:
tem = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
print_subexp (exp, pos, stream, PREC_SUFFIX);
fputs_filtered (".", stream);
fputs_filtered (&exp->elts[pc + 2].string, stream);
return;
/* Will not occur for Modula-2 */
case STRUCTOP_PTR:
tem = longest_to_int (exp->elts[pc + 1].longconst);
(*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1);
print_subexp (exp, pos, stream, PREC_SUFFIX);
fputs_filtered ("->", stream);
fputs_filtered (&exp->elts[pc + 2].string, stream);
return;
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;
case UNOP_POSTINCREMENT:
print_subexp (exp, pos, stream, PREC_SUFFIX);
fputs_filtered ("++", stream);
return;
case UNOP_POSTDECREMENT:
print_subexp (exp, pos, stream, PREC_SUFFIX);
fputs_filtered ("--", stream);
return;
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;
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,
NULL);
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;
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;
}
if (op_print_tab[tem].opcode != opcode)
/* Not found; don't try to keep going because we don't know how
to interpret further elements. */
error ("Invalid expression");
break;
/* C++ ops */
case OP_THIS:
++(*pos);
fputs_filtered ("this", stream);
return;
/* Modula-2 ops */
case MULTI_SUBSCRIPT:
(*pos) += 2;
nargs = longest_to_int (exp->elts[pc + 1].longconst);
print_subexp (exp, pos, stream, PREC_SUFFIX);
fprintf_unfiltered (stream, " [");
for (tem = 0; tem < nargs; tem++)
{
if (tem != 0)
fprintf_unfiltered (stream, ", ");
print_subexp (exp, pos, stream, PREC_ABOVE_COMMA);
}
fprintf_unfiltered (stream, "]");
return;
case BINOP_VAL:
(*pos) += 2;
fprintf_unfiltered (stream, "VAL(");
type_print (exp->elts[pc + 1].type, "", stream, 0);
fprintf_unfiltered (stream, ",");
print_subexp (exp, pos, stream, PREC_PREFIX);
fprintf_unfiltered (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 (op_print_tab[tem].opcode != opcode)
/* Not found; don't try to keep going because we don't know how
to interpret further elements. For example, this happens
if opcode is OP_TYPE. */
error ("Invalid expression");
}
/* Note that PREC_BUILTIN will always emit parentheses. */
if ((int) myprec < (int) prec)
fputs_filtered ("(", stream);
if ((int) opcode > (int) BINOP_END)
{
if (assoc)
{
/* Unary postfix operator. */
print_subexp (exp, pos, stream, PREC_SUFFIX);
fputs_filtered (op_str, stream);
}
else
{
/* Unary prefix operator. */
fputs_filtered (op_str, stream);
if (myprec == PREC_BUILTIN_FUNCTION)
fputs_filtered ("(", stream);
print_subexp (exp, pos, stream, PREC_PREFIX);
if (myprec == PREC_BUILTIN_FUNCTION)
fputs_filtered (")", stream);
}
}
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));
}
if ((int) myprec < (int) prec)
fputs_filtered (")", stream);
}
/* 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;
{
int tem;
register const struct op_print *op_print_tab;
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;
}
/* Support for dumping the raw data from expressions in a human readable
form. */
static char *op_name PARAMS ((int opcode));
static char *
op_name (opcode)
int opcode;
{
switch (opcode)
{
default:
{
static char buf[30];
sprintf (buf, "<unknown %d>", opcode);
return buf;
}
case OP_NULL:
return "OP_NULL";
case BINOP_ADD:
return "BINOP_ADD";
case BINOP_SUB:
return "BINOP_SUB";
case BINOP_MUL:
return "BINOP_MUL";
case BINOP_DIV:
return "BINOP_DIV";
case BINOP_REM:
return "BINOP_REM";
case BINOP_MOD:
return "BINOP_MOD";
case BINOP_LSH:
return "BINOP_LSH";
case BINOP_RSH:
return "BINOP_RSH";
case BINOP_LOGICAL_AND:
return "BINOP_LOGICAL_AND";
case BINOP_LOGICAL_OR:
return "BINOP_LOGICAL_OR";
case BINOP_BITWISE_AND:
return "BINOP_BITWISE_AND";
case BINOP_BITWISE_IOR:
return "BINOP_BITWISE_IOR";
case BINOP_BITWISE_XOR:
return "BINOP_BITWISE_XOR";
case BINOP_EQUAL:
return "BINOP_EQUAL";
case BINOP_NOTEQUAL:
return "BINOP_NOTEQUAL";
case BINOP_LESS:
return "BINOP_LESS";
case BINOP_GTR:
return "BINOP_GTR";
case BINOP_LEQ:
return "BINOP_LEQ";
case BINOP_GEQ:
return "BINOP_GEQ";
case BINOP_REPEAT:
return "BINOP_REPEAT";
case BINOP_ASSIGN:
return "BINOP_ASSIGN";
case BINOP_COMMA:
return "BINOP_COMMA";
case BINOP_SUBSCRIPT:
return "BINOP_SUBSCRIPT";
case MULTI_SUBSCRIPT:
return "MULTI_SUBSCRIPT";
case BINOP_EXP:
return "BINOP_EXP";
case BINOP_MIN:
return "BINOP_MIN";
case BINOP_MAX:
return "BINOP_MAX";
case STRUCTOP_MEMBER:
return "STRUCTOP_MEMBER";
case STRUCTOP_MPTR:
return "STRUCTOP_MPTR";
case BINOP_INTDIV:
return "BINOP_INTDIV";
case BINOP_ASSIGN_MODIFY:
return "BINOP_ASSIGN_MODIFY";
case BINOP_VAL:
return "BINOP_VAL";
case BINOP_INCL:
return "BINOP_INCL";
case BINOP_EXCL:
return "BINOP_EXCL";
case BINOP_CONCAT:
return "BINOP_CONCAT";
case BINOP_RANGE:
return "BINOP_RANGE";
case BINOP_END:
return "BINOP_END";
case TERNOP_COND:
return "TERNOP_COND";
case TERNOP_SLICE:
return "TERNOP_SLICE";
case TERNOP_SLICE_COUNT:
return "TERNOP_SLICE_COUNT";
case OP_LONG:
return "OP_LONG";
case OP_DOUBLE:
return "OP_DOUBLE";
case OP_VAR_VALUE:
return "OP_VAR_VALUE";
case OP_LAST:
return "OP_LAST";
case OP_REGISTER:
return "OP_REGISTER";
case OP_INTERNALVAR:
return "OP_INTERNALVAR";
case OP_FUNCALL:
return "OP_FUNCALL";
case OP_STRING:
return "OP_STRING";
case OP_BITSTRING:
return "OP_BITSTRING";
case OP_ARRAY:
return "OP_ARRAY";
case UNOP_CAST:
return "UNOP_CAST";
case UNOP_MEMVAL:
return "UNOP_MEMVAL";
case UNOP_NEG:
return "UNOP_NEG";
case UNOP_LOGICAL_NOT:
return "UNOP_LOGICAL_NOT";
case UNOP_COMPLEMENT:
return "UNOP_COMPLEMENT";
case UNOP_IND:
return "UNOP_IND";
case UNOP_ADDR:
return "UNOP_ADDR";
case UNOP_PREINCREMENT:
return "UNOP_PREINCREMENT";
case UNOP_POSTINCREMENT:
return "UNOP_POSTINCREMENT";
case UNOP_PREDECREMENT:
return "UNOP_PREDECREMENT";
case UNOP_POSTDECREMENT:
return "UNOP_POSTDECREMENT";
case UNOP_SIZEOF:
return "UNOP_SIZEOF";
case UNOP_LOWER:
return "UNOP_LOWER";
case UNOP_UPPER:
return "UNOP_UPPER";
case UNOP_LENGTH:
return "UNOP_LENGTH";
case UNOP_PLUS:
return "UNOP_PLUS";
case UNOP_CAP:
return "UNOP_CAP";
case UNOP_CHR:
return "UNOP_CHR";
case UNOP_ORD:
return "UNOP_ORD";
case UNOP_ABS:
return "UNOP_ABS";
case UNOP_FLOAT:
return "UNOP_FLOAT";
case UNOP_HIGH:
return "UNOP_HIGH";
case UNOP_MAX:
return "UNOP_MAX";
case UNOP_MIN:
return "UNOP_MIN";
case UNOP_ODD:
return "UNOP_ODD";
case UNOP_TRUNC:
return "UNOP_TRUNC";
case OP_BOOL:
return "OP_BOOL";
case OP_M2_STRING:
return "OP_M2_STRING";
case STRUCTOP_STRUCT:
return "STRUCTOP_STRUCT";
case STRUCTOP_PTR:
return "STRUCTOP_PTR";
case OP_THIS:
return "OP_THIS";
case OP_SCOPE:
return "OP_SCOPE";
case OP_TYPE:
return "OP_TYPE";
case OP_LABELED:
return "OP_LABELED";
}
}
void
dump_prefix_expression (exp, stream, note)
struct expression *exp;
struct ui_file *stream;
char *note;
{
int elt;
char *opcode_name;
char *eltscan;
int eltsize;
fprintf_filtered (stream, "Dump of expression @ ");
gdb_print_host_address (exp, stream);
fprintf_filtered (stream, ", %s:\nExpression: `", note);
if (exp->elts[0].opcode != OP_TYPE)
print_expression (exp, stream);
else
fprintf_filtered (stream, "Type printing not yet supported....");
fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %d bytes each.\n",
exp->language_defn->la_name, exp->nelts,
sizeof (union exp_element));
fprintf_filtered (stream, "\t%5s %20s %16s %s\n", "Index", "Opcode",
"Hex Value", "String Value");
for (elt = 0; elt < exp->nelts; elt++)
{
fprintf_filtered (stream, "\t%5d ", elt);
opcode_name = op_name (exp->elts[elt].opcode);
fprintf_filtered (stream, "%20s ", opcode_name);
print_longest (stream, 'd', 0, exp->elts[elt].longconst);
fprintf_filtered (stream, " ");
for (eltscan = (char *) &exp->elts[elt],
eltsize = sizeof (union exp_element);
eltsize-- > 0;
eltscan++)
{
fprintf_filtered (stream, "%c",
isprint (*eltscan) ? (*eltscan & 0xFF) : '.');
}
fprintf_filtered (stream, "\n");
}
}
static int dump_subexp PARAMS ((struct expression * exp, struct ui_file * stream, int elt));
static int
dump_subexp (exp, stream, elt)
struct expression *exp;
struct ui_file *stream;
int elt;
{
static int indent = 0;
int i;
fprintf_filtered (stream, "\n");
fprintf_filtered (stream, "\t%5d ", elt);
for (i = 1; i <= indent; i++)
fprintf_filtered (stream, " ");
indent += 2;
fprintf_filtered (stream, "%-20s ", op_name (exp->elts[elt].opcode));
switch (exp->elts[elt++].opcode)
{
case TERNOP_COND:
case TERNOP_SLICE:
case TERNOP_SLICE_COUNT:
elt = dump_subexp (exp, stream, elt);
case BINOP_ADD:
case BINOP_SUB:
case BINOP_MUL:
case BINOP_DIV:
case BINOP_REM:
case BINOP_MOD:
case BINOP_LSH:
case BINOP_RSH:
case BINOP_LOGICAL_AND:
case BINOP_LOGICAL_OR:
case BINOP_BITWISE_AND:
case BINOP_BITWISE_IOR:
case BINOP_BITWISE_XOR:
case BINOP_EQUAL:
case BINOP_NOTEQUAL:
case BINOP_LESS:
case BINOP_GTR:
case BINOP_LEQ:
case BINOP_GEQ:
case BINOP_REPEAT:
case BINOP_ASSIGN:
case BINOP_COMMA:
case BINOP_SUBSCRIPT:
case BINOP_EXP:
case BINOP_MIN:
case BINOP_MAX:
case BINOP_INTDIV:
case BINOP_ASSIGN_MODIFY:
case BINOP_VAL:
case BINOP_INCL:
case BINOP_EXCL:
case BINOP_CONCAT:
case BINOP_IN:
case BINOP_RANGE:
case BINOP_END:
elt = dump_subexp (exp, stream, elt);
case UNOP_NEG:
case UNOP_LOGICAL_NOT:
case UNOP_COMPLEMENT:
case UNOP_IND:
case UNOP_ADDR:
case UNOP_PREINCREMENT:
case UNOP_POSTINCREMENT:
case UNOP_PREDECREMENT:
case UNOP_POSTDECREMENT:
case UNOP_SIZEOF:
case UNOP_PLUS:
case UNOP_CAP:
case UNOP_CHR:
case UNOP_ORD:
case UNOP_ABS:
case UNOP_FLOAT:
case UNOP_HIGH:
case UNOP_MAX:
case UNOP_MIN:
case UNOP_ODD:
case UNOP_TRUNC:
case UNOP_LOWER:
case UNOP_UPPER:
case UNOP_LENGTH:
case UNOP_CARD:
case UNOP_CHMAX:
case UNOP_CHMIN:
elt = dump_subexp (exp, stream, elt);
break;
case OP_LONG:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, "), value %ld (0x%lx)",
(long) exp->elts[elt + 1].longconst,
(long) exp->elts[elt + 1].longconst);
elt += 3;
break;
case OP_DOUBLE:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, "), value %g",
(double) exp->elts[elt + 1].doubleconst);
elt += 3;
break;
case OP_VAR_VALUE:
fprintf_filtered (stream, "Block @");
gdb_print_host_address (exp->elts[elt].block, stream);
fprintf_filtered (stream, ", symbol @");
gdb_print_host_address (exp->elts[elt + 1].symbol, stream);
fprintf_filtered (stream, " (%s)",
SYMBOL_NAME (exp->elts[elt + 1].symbol));
elt += 3;
break;
case OP_LAST:
fprintf_filtered (stream, "History element %ld",
(long) exp->elts[elt].longconst);
elt += 2;
break;
case OP_REGISTER:
fprintf_filtered (stream, "Register %ld",
(long) exp->elts[elt].longconst);
elt += 2;
break;
case OP_INTERNALVAR:
fprintf_filtered (stream, "Internal var @");
gdb_print_host_address (exp->elts[elt].internalvar, stream);
fprintf_filtered (stream, " (%s)",
exp->elts[elt].internalvar->name);
elt += 2;
break;
case OP_FUNCALL:
{
int nargs;
nargs = longest_to_int (exp->elts[elt].longconst);
fprintf_filtered (stream, "Number of args: %d", nargs);
elt += 2;
for (i = 1; i <= nargs + 1; i++)
elt = dump_subexp (exp, stream, elt);
}
break;
case OP_ARRAY:
{
int lower, upper;
int i;
lower = longest_to_int (exp->elts[elt].longconst);
upper = longest_to_int (exp->elts[elt + 1].longconst);
fprintf_filtered (stream, "Bounds [%d:%d]", lower, upper);
elt += 3;
for (i = 1; i <= upper - lower + 1; i++)
elt = dump_subexp (exp, stream, elt);
}
break;
case UNOP_MEMVAL:
case UNOP_CAST:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt = dump_subexp (exp, stream, elt + 2);
break;
case OP_TYPE:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt += 2;
break;
case STRUCTOP_STRUCT:
case STRUCTOP_PTR:
{
char *elem_name;
int len;
len = longest_to_int (exp->elts[elt].longconst);
elem_name = &exp->elts[elt + 1].string;
fprintf_filtered (stream, "Element name: `%.*s'", len, elem_name);
elt = dump_subexp (exp, stream, elt + 3 + BYTES_TO_EXP_ELEM (len + 1));
}
break;
case OP_SCOPE:
{
char *elem_name;
int len;
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ") ");
len = longest_to_int (exp->elts[elt + 1].longconst);
elem_name = &exp->elts[elt + 2].string;
fprintf_filtered (stream, "Field name: `%.*s'", len, elem_name);
elt += 4 + BYTES_TO_EXP_ELEM (len + 1);
}
break;
default:
case OP_NULL:
case STRUCTOP_MEMBER:
case STRUCTOP_MPTR:
case MULTI_SUBSCRIPT:
case OP_F77_UNDETERMINED_ARGLIST:
case OP_COMPLEX:
case OP_STRING:
case OP_BITSTRING:
case OP_BOOL:
case OP_M2_STRING:
case OP_THIS:
case OP_LABELED:
case OP_NAME:
case OP_EXPRSTRING:
fprintf_filtered (stream, "Unknown format");
}
indent -= 2;
return elt;
}
void
dump_postfix_expression (exp, stream, note)
struct expression *exp;
struct ui_file *stream;
char *note;
{
int elt;
fprintf_filtered (stream, "Dump of expression @ ");
gdb_print_host_address (exp, stream);
fprintf_filtered (stream, ", %s:\nExpression: `", note);
if (exp->elts[0].opcode != OP_TYPE)
print_expression (exp, stream);
else
fputs_filtered ("Type printing not yet supported....", stream);
fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %d bytes each.\n",
exp->language_defn->la_name, exp->nelts,
sizeof (union exp_element));
fputs_filtered ("\n", stream);
for (elt = 0; elt < exp->nelts;)
elt = dump_subexp (exp, stream, elt);
fputs_filtered ("\n", stream);
}
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