added isServing parameter

compiler/main.nim

@@ -559,6 +559,7 @@ proc MainCommand =
       wantMainModule()
       CommandSuggest()
   of "serve":
+    isServing = true
     gGlobalOptions.incl(optCaasEnabled)
     msgs.gErrorMax = high(int)  # do not stop after first error     
     serve(MainCommand)

compiler/msgs.nim

@@ -523,8 +523,8 @@ proc SuggestWriteln*(s: string) =
       stdoutSocket.send(s & "\c\L")
     
 proc SuggestQuit*() =
-  if isNil(stdoutSocket): quit(0)
-  else: 
+  if not isServing: quit(0)
+  elif not isNil(stdoutSocket):
     stdoutSocket.send("\c\L")
     raise newException(ESuggestDone, "suggest done")
   

compiler/options.nim

@@ -105,6 +105,7 @@ var
   gEvalExpr* = ""             # expression for idetools --eval
   gLastCmdTime*: float        # when caas is enabled, we measure each command
   gListFullPaths*: bool
+  isServing*: bool = false
   
 proc importantComments*(): bool {.inline.} = gCmd in {cmdDoc, cmdIdeTools}
 proc usesNativeGC*(): bool {.inline.} = gSelectedGC >= gcRefc

compiler/service.nim

@@ -90,4 +90,3 @@ proc serve*(action: proc (){.nimcall.}) =
   else:
     echo "Invalid server.type:", typ
     quit 1
-