How to handle nested structs when converting C headers?
In the following snippet i'm currently converting, how would you
convert the nested typed union and structures? Would you declare
them separately then use their types in the Tcl_Obj struct? or is
there a nice way in D to nest them like C?
typedef struct Tcl_Obj {
int refCount; /* When 0 the object will be freed. */
char *bytes; /* This points to the first byte of the
* object's string representation. The array
* must be followed by a null byte (i.e., at
* offset length) but may also contain
* embedded null characters. The array's
* storage is allocated by ckalloc. NULL means
* the string rep is invalid and must be
* regenerated from the internal rep. Clients
* should use Tcl_GetStringFromObj or
* Tcl_GetString to get a pointer to the byte
* array as a readonly value. */
int length; /* The number of bytes at *bytes, not
* including the terminating null. */
Tcl_ObjType *typePtr; /* Denotes the object's type. Always
* corresponds to the type of the object's
* internal rep. NULL indicates the object has
* no internal rep (has no type). */
union { /* The internal representation: */
long longValue; /* - an long integer value. */
double doubleValue; /* - a double-precision floating value. */
VOID *otherValuePtr; /* - another, type-specific value. */
Tcl_WideInt wideValue; /* - a long long value. */
struct { /* - internal rep as two pointers. */
VOID *ptr1;
VOID *ptr2;
} twoPtrValue;
struct { /* - internal rep as a wide int, tightly
* packed fields. */
VOID *ptr; /* Pointer to digits. */
unsigned long value;/* Alloc, used, and signum packed into a
* single word. */
} ptrAndLongRep;
} internalRep;
} Tcl_Obj;
