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This implementation doesn't support the select statement.

Only an implementation in the runtime, by the language, would.

That's false. With anonymous closures you can implement select. See concurrent ML, or https://github.com/twitter/util/blob/develop/util-core/src/m... (which also happens to be lock free)

He's referring to the "select" keyword, which is built into Go. You can't use it with anything other than the built-in channel type.

The great hopac library for F# which is inspired by concurrent ML also supports channels with select.

There now also seems to be an experimental channel implementation for C#/.Net which supports this feature: https://github.com/dotnet/corefxlab/tree/master/src/System.T...