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A comment on Why don't more languages offer flow typing?. Parent comment
e.g. inside "if (x != null) { }", or after "x = y ?? throw new ArgumentNullException()" then x is known not null.
C# has flow types, but only in this specific and limited way. You could say that about a lot of programming language features.
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e.g. inside "if (x != null) { }", or after "x = y ?? throw new ArgumentNullException()" then x is known not null.
C# has flow types, but only in this specific and limited way. You could say that about a lot of programming language features.