Either._copiedLeftInout
private
inout(Storage) _copiedLeftInout()(ref inout(typeof(this)) other) static @trustedCopy the storage's left alternative, preserving qualifiers.
The declaration-form designator literal is the portable way to select a union member for qualified construction: some frontends reject named arguments in qualified constructor-call syntax. One helper per qualifier; the empty template parameter list defers semantic analysis until the matching copy constructor exists.
Parameters
other | either whose left storage is copied. |
Returns
the copied storage by value, for bitwise adoption.