Relax Function type constraint on callback objects

Author: jdlangs

src/pubsub.jl

@@ -19,10 +19,10 @@ end
 
 type Subscriber{MsgType<:MsgT}
     o::PyObject
-    callback::Function
+    callback
 
     function Subscriber(
-        topic::String, cb::Function, cb_args = (); kwargs...
+        topic::String, cb, cb_args::Tuple=(); kwargs...
     )
         @debug("Creating <$(string(MsgType))> subscriber on topic: '$topic'")
         rospycls = _get_rospy_class(MsgType)
@@ -36,7 +36,7 @@ end
 Subscriber{MsgType<:MsgT}(
     topic::String,
     ::Type{MsgType},
-    cb::Function,
-    cb_args = ();
+    cb,
+    cb_args::Tuple=();
     kwargs...
 ) = Subscriber{MsgType}(topic, cb, cb_args; kwargs...)

src/services.jl

@@ -39,9 +39,9 @@ end
 
 type Service{SrvType <: ServiceDefinition}
     o::PyObject
-    jl_handler::Function
+    jl_handler
 
-    function Service(name::String, handler::Function; kwargs...)
+    function Service(name::String, handler; kwargs...)
         @debug("Providing <$SrvType> service at '$name'")
         rospycls = _get_rospy_class(SrvType)
         ReqType = _srv_reqtype(SrvType)
@@ -63,7 +63,7 @@ end
 function Service{SrvType<:ServiceDefinition}(
     name::String,
     srv::Type{SrvType},
-    handler::Function;
+    handler;
     kwargs...
 )
     Service{SrvType}(name, handler; kwargs...)