Method Nullable

context.go:634–647

(typ Type)

}

func (c *Context) Nullable(typ Type) *TypeUnion {
	var types []Type
	if union, ok := TypeUnder(typ).(*TypeUnion); ok {
		for _, t := range union.Types {
			if t == TypeNull {
				return union
			}
		}
		types = slices.Clone(union.Types)
	} else {
		types = []Type{typ}
	}
	return c.LookupTypeUnion(append(types, TypeNull))
}

func NullableUnion(typ Type) (*TypeUnion, int) {
	if union, ok := typ.(*TypeUnion); ok {