Empty becomes (), reflecting convention (#637)

gavofyork · web-flow · commit d5a43798315e · 2018-08-31T14:32:51.000+02:00
diff --git a/substrate/runtime/primitives/src/traits.rs b/substrate/runtime/primitives/src/traits.rs
@@ -104,8 +104,7 @@ pub struct Identity;
 impl<T> Convert<T, T> for Identity {
 	fn convert(a: T) -> T { a }
 }
-pub struct Empty;
-impl<T> Convert<T, ()> for Empty {
+impl<T> Convert<T, ()> for () {
 	fn convert(_: T) -> () { () }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -104,8 +104,7 @@ pub struct Identity;`
`104`	`104`	`impl<T> Convert<T, T> for Identity {`
`105`	`105`	`fn convert(a: T) -> T { a }`
`106`	`106`	`}`
`107`		`-pub struct Empty;`
`108`		`-impl<T> Convert<T, ()> for Empty {`
	`107`	`+impl<T> Convert<T, ()> for () {`
`109`	`108`	`fn convert(_: T) -> () { () }`
`110`	`109`	`}`
`111`	`110`