diff options
Diffstat (limited to 'src/libsyntax/print')
| -rw-r--r-- | src/libsyntax/print/pprust.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs index db122f271a9..4f45b69883b 100644 --- a/src/libsyntax/print/pprust.rs +++ b/src/libsyntax/print/pprust.rs @@ -1495,7 +1495,7 @@ impl<'a> State<'a> { ast::ExprBox(ref p, ref e) => { try!(word(&mut self.s, "box")); try!(word(&mut self.s, "(")); - try!(self.print_expr(&**p)); + try!(p.as_ref().map_or(Ok(()), |e|self.print_expr(&**e))); try!(self.word_space(")")); try!(self.print_expr(&**e)); } |