libsyntax: add Default implementation to OptVec

erickt · erickt · commit f1374a7044d8 · 2013-09-12T18:54:12.000-07:00
diff --git a/src/libsyntax/opt_vec.rs b/src/libsyntax/opt_vec.rs
@@ -140,6 +140,10 @@ impl<A:Eq> Eq for OptVec<A> {
     }
 }
 
+impl<T> Default for OptVec<T> {
+    fn default() -> OptVec<T> { Empty }
+}
+
 pub struct OptVecIterator<'self, T> {
     priv iter: Option<VecIterator<'self, T>>
 }

Original file line number	Diff line number	Diff line change
`@@ -140,6 +140,10 @@ impl<A:Eq> Eq for OptVec<A> {`
`140`	`140`	`}`
`141`	`141`	`}`
`142`	`142`
	`143`	`+impl<T> Default for OptVec<T> {`
	`144`	`+ fn default() -> OptVec<T> { Empty }`
	`145`	`+}`
	`146`	`+`
`143`	`147`	`pub struct OptVecIterator<'self, T> {`
`144`	`148`	`priv iter: Option<VecIterator<'self, T>>`
`145`	`149`	`}`