A ZRef.Synchronized[RA, RB, EA, EB, A, B] is a polymorphic, purely
functional description of a mutable reference.
A ZRef.Synchronized[RA, RB, EA, EB, A, B] is a polymorphic, purely
functional description of a mutable reference. The fundamental operations
of a ZRef.Synchronized are set and get. set takes a value of type
A and sets the reference to a new value, requiring an environment of type
RA and potentially failing with an error of type EA. get gets the
current value of the reference and returns a value of type B, requiring
an environment of type RB and potentially failing with an error of type
EB.
When the error and value types of the ZRef.Synchronized are unified, that
is, it is a ZRef.Synchronized[R, R, E, E, A, A], the ZRef.Synchronized
also supports atomic modify and update operations.
Unlike an ordinary ZRef, a ZRef.Synchronized allows performing effects
within update operations, at some cost to performance. Writes will
semantically block other writers, while multiple readers can read
simultaneously.
ZRef.Synchronized also supports composing multiple ZRef.Synchronized
values together to form a single ZRef.Synchronized value that can be
atomically updated using the zip operator. In this case reads and writes
will semantically block other readers and writers.
Creates a new ZRef with the specified value.
Creates a new managed ZRef with the specified value