Nice.

On Sat, Nov 5, 2011 at 2:41 PM, Joe Groff <[email protected]> wrote:

> On Sat, Nov 5, 2011 at 11:35 AM, L N <[email protected]> wrote:
>
>> Wondering if there is a way to do type-checking in Factor.
>>
>> Sorry for the inundation of questions.
>>
>> Factor is a fascinating new environment.
>>
>> Runtime type checking is provided by the `typed` module:
>
> USE: typed
>
> TYPED: f+ ( x: float y: float -- z: float ) + ;
>
> 1.0 2.0 + . ! => 3.0
> 1 2 + . ! error
>
> The compiler doesn't yet detect type errors at compile time. We hope to
> integrate type checking features more tightly into Factor's core in the
> future.
>
> -Joe
>
>
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