Update to latest nightly's API

dtolnay · Nov 19, 2017 · 998f642 · 998f642
1 parent a5aa9b9
commit 998f642
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/unstable.rs b/src/unstable.rs
@@ -159,7 +159,7 @@ impl fmt::Debug for TokenTreeIter {
     }
 }
 
-#[derive(Copy, Clone, Default)]
+#[derive(Copy, Clone)]
 pub struct Span(proc_macro::Span);
 
 impl Span {
@@ -168,6 +168,12 @@ impl Span {
     }
 }
 
+impl Default for Span {
+    fn default() -> Span {
+        Span(proc_macro::Span::def_site())
+    }
+}
+
 impl fmt::Debug for Span {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         self.0.fmt(f)