/* Yecch. */

typedef struct BloatedObject {
    Foo *foo;
    SV  *foo_ref;
    Bar *bar;
    SV  *bar_ref;
} BloatedObject;

void
destroy_bloated_object(BloatedObject *obj) {
    SvREFCNT_dec(obj->foo_ref);
    SvREFCNT_dec(obj->bar_ref);
    Safefree(obj);
}

/* Better. */

typedef struct LeanObject {
    Foo *foo;
    Bar *bar;
} LeanObject;

void
destroy_lean_object(LeanObject *obj) {
    SvREFCNT_dec(obj->foo->perlobj);
    SvREFCNT_dec(obj->bar->perlobj);
    Safefree(obj);
}