Does ImmutableList have AsReadOnly like method?

Question

AsReadOnly() is a convenient method to get a read-only image (not expensive compared to immutable collections' copies) of a collection. I am wondering if ImmutableList has AsReadOnly like method? If no, any easy way to implement similarly?

Answer 1

ImmutableList<T> is copied by reference so is perfectly safe to pass around without a performance penalty. Thus there is no need for an AsReadOnly method as it wouldn't make it any easier to copy.