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authorFelix S. Klock II <pnkfelix@pnkfx.org>2014-12-16 14:30:30 +0100
committerFelix S. Klock II <pnkfelix@pnkfx.org>2014-12-16 14:30:30 +0100
commit7d4e7f079552a524440d8b5fb656d52661592aee (patch)
tree45dce48e2a077271d9f2c92a06c1b33d17982f0e /src/libsyntax/print
parent41f5907fa6b04614821277dd63172c5c8f11b6cd (diff)
downloadrust-7d4e7f079552a524440d8b5fb656d52661592aee.tar.gz
rust-7d4e7f079552a524440d8b5fb656d52661592aee.zip
AST refactor: make the place in ExprBox an option.
This is to allow us to migrate away from UnUniq in a followup commit,
and thus unify the code paths related to all forms of `box`.
Diffstat (limited to 'src/libsyntax/print')
-rw-r--r--src/libsyntax/print/pprust.rs2
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));
             }