Lines Matching defs:nullability

712     // nullability.
4539 /// Merge type nullability from for a redeclaration of the same entity,
4547   // Determine the nullability of both types.
4548   auto nullability = type->getNullability();
4551   // Easy case: both have nullability.
4552   if (nullability.has_value() == prevNullability.has_value()) {
4553     // Neither has nullability; continue.
4554     if (!nullability)
4558     if (*nullability == *prevNullability)
4561     // Complain about mismatched nullability.
4563       << DiagNullabilityKind(*nullability, usesCSKeyword)
4568   // If it's the redeclaration that has nullability, don't change anything.
4569   if (nullability)
4572   // Otherwise, provide the result with the same nullability.
4591   // Merge nullability of the result type.
4609     // Merge nullability.