cider.nrepl.middleware.out — cider/cider-nrepl 0.27.0-SNAPSHOT

Change out, err, System/out and System/err to print on sessions in addition to process out.

Automatically changes the root binding of all output channels to print to any active sessions. An active session is one that has sent at least one "eval" op.

We use an eval message, instead of the clone op, because there's no guarantee that the channel that sent the clone message will properly handle output replies.

forking-printer clj

(forking-printer messages type)

Returns a PrintWriter suitable for binding as out or err. All operations are forwarded to all output bindings in the sessions of messages, in addition to the server's usual PrintWriter (saved in original-output).

type is either :out or :err.

handle-out clj

(handle-out handler msg)

original-output clj

(original-output k)

Store the values of the original output streams so we can refer to them.

print-stream clj

(print-stream printer)

Returns a PrintStream suitable for binding as java.lang.System/out or java.lang.System/err. All operations are forwarded to all output bindings in the sessions of messages, in addition to the server's usual PrintWriter (saved in original-output).

printer is the printer var, either #'clojure.core/out or #'clojure.core/err.

subscribe-session clj

(subscribe-session {:keys [session] :as msg})

Add msg to tracked-sessions-map.

tracked-sessions-map clj

Map from session ids to eval *msg*s. Only the most recent message from each session is stored.

tracked-sessions-map-watch clj

(tracked-sessions-map-watch _ _ _ new-state)

unsubscribe-session clj

(unsubscribe-session session)

Remove session from tracked-sessions-map.

with-out-binding clj macro

(with-out-binding [v msg-seq type] & body)

Run body with v bound to the output stream of each msg in msg-seq. type is either :out or :err.