maybeMap<TResult extends Object?> method Null safety

  1. @optionalTypeArgs
TResult maybeMap<TResult extends Object?>(
  1. TResult $default(
    1. _ScrollPhysics value
    )?,
  2. {TResult rangeMaintaining(
    1. RangeMaintainingScrollPhysics value
    )?,
  3. TResult bouncingScroll(
    1. BouncingScrollScrollPhysics value
    )?,
  4. TResult clamping(
    1. ClampingScrollPhysics value
    )?,
  5. TResult alwaysScrollable(
    1. AlwaysScrollableScrollPhysics value
    )?,
  6. TResult neverScrollable(
    1. NeverScrollableScrollPhysics value
    )?,
  7. TResult pageScroll(
    1. PageScrollPhysics value
    )?,
  8. TResult fixedExtent(
    1. FixedExtentScrollPhysics value
    )?,
  9. required TResult orElse(
      )}
    )
    @optionalTypeArgs, inherited

    Implementation

    @optionalTypeArgs
TResult maybeMap<TResult extends Object?>(
  TResult Function(_ScrollPhysics value)? $default, {
  TResult Function(RangeMaintainingScrollPhysics value)? rangeMaintaining,
  TResult Function(BouncingScrollScrollPhysics value)? bouncingScroll,
  TResult Function(ClampingScrollPhysics value)? clamping,
  TResult Function(AlwaysScrollableScrollPhysics value)? alwaysScrollable,
  TResult Function(NeverScrollableScrollPhysics value)? neverScrollable,
  TResult Function(PageScrollPhysics value)? pageScroll,
  TResult Function(FixedExtentScrollPhysics value)? fixedExtent,
  required TResult orElse(),
}) =>
    throw _privateConstructorUsedError;