Throwing redis-connection-error if no connection established

[y2q-actionman]

I've tried cl-redis and this works well. But I occasionally call cl-redis functions before establishing any connection. In this situation, cl-redis throws NO-APPLICABLE-METHOD error and surprises me.

There is no applicable method for the generic function

<STANDARD-GENERIC-FUNCTION REDIS::CONN-STREAM (1)>

when called with arguments (NIL). [Condition of type SB-PCL::NO-APPLICABLE-METHOD-ERROR] See also: Common Lisp Hyperspec, 7.6.6 [:section]

Restarts: 0: [RETRY] Retry calling the generic function. 1: [RETRY] Retry SLIME REPL evaluation request. 2: [*ABORT] Return to SLIME's top level. 3: [ABORT] abort thread (#<THREAD "repl-thread" RUNNING {10021E8003}>)

Backtrace: 0: ((:METHOD NO-APPLICABLE-METHOD (T)) #<STANDARD-GENERIC-FUNCTION REDIS::CONN-STREAM (1)> NIL) [fast-method] 1: (SB-PCL::CALL-NO-APPLICABLE-METHOD #<STANDARD-GENERIC-FUNCTION REDIS::CONN-STREAM (1)> (NIL)) 2: (REDIS::FORMAT-REDIS-NUMBER #* 2) 3: ((:METHOD REDIS:TELL (T)) REDIS::GET "hey") [fast-method] 4: ((SB-PCL::EMF REDIS:TELL) # # REDIS::GET "hey") 5: (REDIS::GET "hey") 6: (SB-INT:SIMPLE-EVAL-IN-LEXENV (REDIS::GET "hey") #) 7: (EVAL (REDIS::GET "hey")) --more--

This pull request replaces the condition with redis-connection-error. I think this provides more information about what to do.

Redis error: No connection to Redis server was not established. [Condition of type REDIS:REDIS-CONNECTION-ERROR]

Restarts: 0: [RETRY] Retry SLIME REPL evaluation request. 1: [*ABORT] Return to SLIME's top level. 2: [ABORT] abort thread (#<THREAD "repl-thread" RUNNING {10021E8003}>)

Thank you for reading to the end.

[vseloved]

Thanks and sorry for me taking some time to respond