when<TResult extends Object?> method Null safety

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. Brightness brightness,
    2. Color primary,
    3. Color onPrimary,
    4. Color? primaryContainer,
    5. Color? onPrimaryContainer,
    6. Color secondary,
    7. Color onSecondary,
    8. Color? secondaryContainer,
    9. Color? onSecondaryContainer,
    10. Color? tertiary,
    11. Color? onTertiary,
    12. Color? tertiaryContainer,
    13. Color? onTertiaryContainer,
    14. Color error,
    15. Color onError,
    16. Color? errorContainer,
    17. Color? onErrorContainer,
    18. Color background,
    19. Color onBackground,
    20. Color surface,
    21. Color onSurface,
    22. Color? surfaceVariant,
    23. Color? onSurfaceVariant,
    24. Color? outline,
    25. Color? outlineVariant,
    26. Color? shadow,
    27. Color? scrim,
    28. Color? inverseSurface,
    29. Color? onInverseSurface,
    30. Color? inversePrimary,
    31. Color? surfaceTint
    ),
  2. {required TResult fromSeed(
    1. Color seedColor,
    2. Brightness brightness,
    3. Color? primary,
    4. Color? onPrimary,
    5. Color? primaryContainer,
    6. Color? onPrimaryContainer,
    7. Color? secondary,
    8. Color? onSecondary,
    9. Color? secondaryContainer,
    10. Color? onSecondaryContainer,
    11. Color? tertiary,
    12. Color? onTertiary,
    13. Color? tertiaryContainer,
    14. Color? onTertiaryContainer,
    15. Color? error,
    16. Color? onError,
    17. Color? errorContainer,
    18. Color? onErrorContainer,
    19. Color? outline,
    20. Color? outlineVariant,
    21. Color? background,
    22. Color? onBackground,
    23. Color? surface,
    24. Color? onSurface,
    25. Color? surfaceVariant,
    26. Color? onSurfaceVariant,
    27. Color? inverseSurface,
    28. Color? onInverseSurface,
    29. Color? inversePrimary,
    30. Color? shadow,
    31. Color? scrim,
    32. Color? surfaceTint
    )}
)
@optionalTypeArgs, inherited

Implementation

@optionalTypeArgs
TResult when<TResult extends Object?>(
  TResult Function(
          Brightness brightness,
          Color primary,
          Color onPrimary,
          Color? primaryContainer,
          Color? onPrimaryContainer,
          Color secondary,
          Color onSecondary,
          Color? secondaryContainer,
          Color? onSecondaryContainer,
          Color? tertiary,
          Color? onTertiary,
          Color? tertiaryContainer,
          Color? onTertiaryContainer,
          Color error,
          Color onError,
          Color? errorContainer,
          Color? onErrorContainer,
          Color background,
          Color onBackground,
          Color surface,
          Color onSurface,
          Color? surfaceVariant,
          Color? onSurfaceVariant,
          Color? outline,
          Color? outlineVariant,
          Color? shadow,
          Color? scrim,
          Color? inverseSurface,
          Color? onInverseSurface,
          Color? inversePrimary,
          Color? surfaceTint)
      $default, {
  required TResult Function(
          Color seedColor,
          Brightness brightness,
          Color? primary,
          Color? onPrimary,
          Color? primaryContainer,
          Color? onPrimaryContainer,
          Color? secondary,
          Color? onSecondary,
          Color? secondaryContainer,
          Color? onSecondaryContainer,
          Color? tertiary,
          Color? onTertiary,
          Color? tertiaryContainer,
          Color? onTertiaryContainer,
          Color? error,
          Color? onError,
          Color? errorContainer,
          Color? onErrorContainer,
          Color? outline,
          Color? outlineVariant,
          Color? background,
          Color? onBackground,
          Color? surface,
          Color? onSurface,
          Color? surfaceVariant,
          Color? onSurfaceVariant,
          Color? inverseSurface,
          Color? onInverseSurface,
          Color? inversePrimary,
          Color? shadow,
          Color? scrim,
          Color? surfaceTint)
      fromSeed,
}) =>
    throw _privateConstructorUsedError;