On Sat, Aug 4, 2012 at 6:43 PM, Mark Engelberg <[email protected]> wrote:
> What is the reasoning behind the design decision that this generates an
> error:
> (let [a :x b :x] #{a b})
> rather than just returning #{:x} ?
My first reaction was that literals have to obey the rules of the
underlying type or else they are not valid literals:
#{1 2 1} ;; error
{:x 1 :y 2 :x 3} ;; error
I hadn't even thought of using the set literal syntax with variables
that might not have unique value. I guess I'd ask: why not use the set
function?
(let [a :x b :x] (set [a b])) ;; #{:x}
--
Sean A Corfield -- (904) 302-SEAN
An Architect's View -- http://corfield.org/
World Singles, LLC. -- http://worldsingles.com/
"Perfection is the enemy of the good."
-- Gustave Flaubert, French realist novelist (1821-1880)
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