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search_struct_field: remove OFFSET parameter 

I was trying to understand what the OFFSET parameter was for, and
realized it was set to 0 in every call to search_struct_field.  I
assume that it was used at some point, but some subsequent changes
made it useless.

gdb/ChangeLog:

	* valops.c (search_struct_field): Remove OFFSET parameter.
	(value_cast_structs): Adjust calls to search_struct_field.
	(value_struct_elt): Same.
	(find_overload_match): Same.
This commit is contained in:
Simon Marchi 2015-07-06 13:10:56 -04:00
parent a844296a98
commit 8a13d42d99
2 changed files with 18 additions and 12 deletions
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7
gdb/ChangeLog
View File

@ -1,3 +1,10 @@
2015-07-06 Simon Marchi <simon.marchi@ericsson.com>
* valops.c (search_struct_field): Remove OFFSET parameter.
(value_cast_structs): Adjust calls to search_struct_field.
(value_struct_elt): Same.
(find_overload_match): Same.
2015-07-06 Simon Marchi <simon.marchi@ericsson.com>
* value.c (value_fetch_lazy): Update comment, change return

23
gdb/valops.c
View File

@ -47,7 +47,7 @@ static int typecmp (int staticp, int varargs, int nargs,
struct field t1[], struct value *t2[]);
static struct value *search_struct_field (const char *, struct value *,
int, struct type *, int);
struct type *, int);
static struct value *search_struct_method (const char *, struct value **,
struct value **,
@ -245,7 +245,7 @@ value_cast_structs (struct type *type, struct value *v2)
if (TYPE_NAME (t1) != NULL)
{
v = search_struct_field (type_name_no_tag (t1),
v2, 0, t2, 1);
v2, t2, 1);
if (v)
return v;
}
@ -272,7 +272,7 @@ value_cast_structs (struct type *type, struct value *v2)
&& !strcmp (TYPE_NAME (real_type), TYPE_NAME (t1)))
return v;
v = search_struct_field (type_name_no_tag (t2), v, 0, real_type, 1);
v = search_struct_field (type_name_no_tag (t2), v, real_type, 1);
if (v)
return v;
}
@ -281,7 +281,7 @@ value_cast_structs (struct type *type, struct value *v2)
T2. This wouldn't work properly for classes with virtual
bases, but those were handled above. */
v = search_struct_field (type_name_no_tag (t2),
value_zero (t1, not_lval), 0, t1, 1);
value_zero (t1, not_lval), t1, 1);
if (v)
{
/* Downcasting is possible (t1 is superclass of v2). */
@ -1949,21 +1949,20 @@ do_search_struct_field (const char *name, struct value *arg1, int offset,
}
/* Helper function used by value_struct_elt to recurse through
baseclasses. Look for a field NAME in ARG1. Adjust the address of
ARG1 by OFFSET bytes, and search in it assuming it has (class) type
TYPE. If found, return value, else return NULL.
baseclasses. Look for a field NAME in ARG1. Search in it assuming
it has (class) type TYPE. If found, return value, else return NULL.
If LOOKING_FOR_BASECLASS, then instead of looking for struct
fields, look for a baseclass named NAME. */
static struct value *
search_struct_field (const char *name, struct value *arg1, int offset,
search_struct_field (const char *name, struct value *arg1,
struct type *type, int looking_for_baseclass)
{
struct value *result = NULL;
int boffset = 0;
do_search_struct_field (name, arg1, offset, type, looking_for_baseclass,
do_search_struct_field (name, arg1, 0, type, looking_for_baseclass,
&result, &boffset, type);
return result;
}
@ -2162,7 +2161,7 @@ value_struct_elt (struct value **argp, struct value **args,
/* Try as a field first, because if we succeed, there is less
work to be done. */
v = search_struct_field (name, *argp, 0, t, 0);
v = search_struct_field (name, *argp, t, 0);
if (v)
return v;
@ -2196,7 +2195,7 @@ value_struct_elt (struct value **argp, struct value **args,
/* See if user tried to invoke data as function. If so, hand it
back. If it's not callable (i.e., a pointer to function),
gdb should give an error. */
v = search_struct_field (name, *argp, 0, t, 0);
v = search_struct_field (name, *argp, t, 0);
/* If we found an ordinary field, then it is not a method call.
So, treat it as if it were a static member function. */
if (v && static_memfuncp)
@ -2519,7 +2518,7 @@ find_overload_match (struct value **args, int nargs,
a function. */
if (TYPE_CODE (check_typedef (value_type (obj))) == TYPE_CODE_STRUCT)
{
*valp = search_struct_field (name, obj, 0,
*valp = search_struct_field (name, obj,
check_typedef (value_type (obj)), 0);
if (*valp)
{