Move global vars to the top of the src file: conventions

registry/registry.go

@@ -5,6 +5,15 @@ import (
 	"errors"
 )
 
+var (
+	DefaultRegistry = NewRegistry()
+
+	// Not found error when GetService is called
+	ErrNotFound = errors.New("service not found")
+	// Watcher stopped error when watcher is stopped
+	ErrWatcherStopped = errors.New("watcher stopped")
+)
+
 // The registry provides an interface for service discovery
 // and an abstraction over varying implementations
 // {consul, etcd, zookeeper, ...}
@@ -25,15 +34,6 @@ type RegisterOption func(*RegisterOptions)
 
 type WatchOption func(*WatchOptions)
 
-var (
-	DefaultRegistry = NewRegistry()
-
-	// Not found error when GetService is called
-	ErrNotFound = errors.New("service not found")
-	// Watcher stopped error when watcher is stopped
-	ErrWatcherStopped = errors.New("watcher stopped")
-)
-
 // Register a service node. Additionally supply options such as TTL.
 func Register(s *Service, opts ...RegisterOption) error {
 	return DefaultRegistry.Register(s, opts...)