// toAddrPointer converts an interface to a pointer that points to
// the interface data.
-func toAddrPointer(i *interface{}, isptr bool) pointer {
+func toAddrPointer(i *interface{}, isptr, deref bool) (p pointer) {
// Super-tricky - read or get the address of data word of interface value.
if isptr {
// The interface is of pointer type, thus it is a direct interface.
// The data word is the pointer data itself. We take its address.
- return pointer{p: unsafe.Pointer(uintptr(unsafe.Pointer(i)) + ptrSize)}
+ p = pointer{p: unsafe.Pointer(uintptr(unsafe.Pointer(i)) + ptrSize)}
+ } else {
+ // The interface is not of pointer type. The data word is the pointer
+ // to the data.
+ p = pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]}
}
- // The interface is not of pointer type. The data word is the pointer
- // to the data.
- return pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]}
+ if deref {
+ p.p = *(*unsafe.Pointer)(p.p)
+ }
+ return p
}
// valToPointer converts v to a pointer. v must be of pointer type.