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Implementing custom control structures in Scala

http://lexandera.com/2009/11/dont-in-scala/

by nimbix • 17 years ago

15 5 17 years ago

LE

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5

davidw2• 17 years ago

Tcl is quite good at that sort of thing too:

http://wiki.tcl.tk/685

Because everything is a command.

I have a question though.. what's the 'Unit'? That's how they're passing in a block of code, but http://www.scala-lang.org/docu/files/api/scala/Unit.html doesn't seem to have much information.

warfangle• 17 years ago

Unit is Scala's void. Basically. It's the type returned by functions which don't have a return value.

davidw2• 17 years ago

Ah, I misunderstood then, that's the return type. What type is 'code' and how does it work that you can just put it on a line all its own and it runs? I get that it's figuring out the type via type inference, I'm just curious what the 'magic properties' are.

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