RegisterBinaryCallbackHandler typedef Null safety

ZoneBinaryCallback<R, T1, T2> RegisterBinaryCallbackHandler <R, T1, T2>(
  1. Zone self,
  2. ZoneDelegate parent,
  3. Zone zone,
  4. R f(
    1. T1 arg1,
    2. T2 arg2
    )
)

Implementation

typedef RegisterBinaryCallbackHandler
    = ZoneBinaryCallback<R, T1, T2> Function<R, T1, T2>(Zone self,
        ZoneDelegate parent, Zone zone, R Function(T1 arg1, T2 arg2) f);