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widl: Don't allow unions passed by value or floating point returns for interpreted functions.

This commit is contained in:
Alexandre Julliard 2011-06-01 20:46:50 +02:00
parent 82d3ea86cf
commit 2db27725bf
1 changed files with 25 additions and 3 deletions
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26
tools/widl/typegen.c
View File

@ -933,11 +933,33 @@ static unsigned int write_procformatstring_type(FILE *file, int indent,
int is_interpreted_func( const type_t *iface, const var_t *func )
{
const char *str;
const var_t *var;
const var_list_t *args = type_get_function_args( func->type );
const type_t *ret_type = type_function_get_rettype( func->type );
/* return value must fit in a long_ptr for interpreted functions */
if (type_get_type( ret_type ) == TYPE_BASIC && type_memsize( ret_type ) > pointer_size)
if (type_get_type( ret_type ) == TYPE_BASIC)
{
switch (type_basic_get_type( ret_type ))
{
case TYPE_BASIC_INT64:
case TYPE_BASIC_HYPER:
/* return value must fit in a long_ptr */
if (pointer_size < 8) return 0;
break;
case TYPE_BASIC_FLOAT:
case TYPE_BASIC_DOUBLE:
/* floating point values can't be returned */
return 0;
default:
break;
}
}
/* unions passed by value are not supported */
if (args) LIST_FOR_EACH_ENTRY( var, args, const var_t, entry )
if (type_get_type( var->type ) == TYPE_UNION ||
type_get_type( var->type ) == TYPE_ENCAPSULATED_UNION)
return 0;
if ((str = get_attrp( func->attrs, ATTR_OPTIMIZE ))) return !strcmp( str, "i" );
if ((str = get_attrp( iface->attrs, ATTR_OPTIMIZE ))) return !strcmp( str, "i" );
return 0;