Unexpected behavior

[JGailor]

Trying to get the members of a set and sequentially process them like so:

(wcar* (doseq [member (car/smembers "my-set")] (println member)))
=> nil
[[SMEMBERS my-set]]
["1" "2" "3" "5" "6" "7" "8" "9" "10"]

It's been a while since I have written Clojure but can someone give me an idea of what I'm doing wrong? If I simplify the expression to just

(wcar* (car/smembers "my-set"))
=> ["1" "2" "3" "5" "6" "7" "8" "9" "10"]

and digging further into it:

(class (wcar* (car/smembers "my-set")))
=> clojure.lang.PersistentVector

I'm a bit confused by what the doseq is doing differently that's resulting in the two vectors being returned.

[ptaoussanis]

(wcar* (doseq [member (car/smembers "my-set")](println member)))

Hi there! Please see the Carmine README for usage instructions.

car/command calls have a nil result within a wcar call. The server reply that you're looking for is returned only with the enclosing wcar call.

One wcar => one TCP roundtrip. No replies are actually received from the server until the wcar form terminates.

Hope that helps!

[JGailor]

Huge help.  Makes total sense.  Thanks for pointing that out.

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On Mon, Aug 1, 2016 at 7:54 PM -0700, "Peter Taoussanis" notifications@github.com wrote:

(wcar* (doseq member (car/smembers "my-set")))

Hi there! Please see the Carmine README for usage instructions.

car/command calls have a nil result within a wcar call. The server reply that you're looking for is returned only with the enclosing wcar call.

One wcar => one TCP roundtrip. No commands are actually sent to the server until the wcar form terminates.

Hope that helps!

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[ptaoussanis]

No problem :-)