Fix bug in path formatting

src/types.rs

@@ -240,7 +240,7 @@ fn rewrite_segment(segment: &ast::PathSegment,
                 None => String::new(),
             };
 
-            let list_lo = span_after(codemap::mk_sp(*span_lo, span_hi), "(", context.codemap);
+            let list_lo = span_after(data.span, "(", context.codemap);
             let items = itemize_list(context.codemap,
                                      data.inputs.iter(),
                                      ")",
@@ -265,7 +265,7 @@ fn rewrite_segment(segment: &ast::PathSegment,
             };
 
             // update pos
-            *span_lo = data.inputs.last().unwrap().span.hi + BytePos(1);
+            *span_lo = data.span.hi + BytePos(1);
 
             format!("({}){}", write_list(&items.collect::<Vec<_>>(), &fmt), output)
         }

tests/source/structs.rs

@@ -68,3 +68,9 @@ struct Tuple(
     A, //Comment
     B
 );
+
+pub struct State<F: FnMut() -> time::Timespec> { now: F }
+
+pub struct State<F: FnMut() -> ()> { now: F }
+
+pub struct State<F: FnMut()> { now: F }

tests/target/structs.rs

@@ -65,3 +65,15 @@ struct Baz {
 
 // Will this be a one-liner?
 struct Tuple(A /* Comment */, B);
+
+pub struct State<F: FnMut() -> time::Timespec> {
+    now: F,
+}
+
+pub struct State<F: FnMut() -> ()> {
+    now: F,
+}
+
+pub struct State<F: FnMut()> {
+    now: F,
+}