Add information about the syntax used in ranges

... or ..=

1 files changed, 3 insertions, 2 deletions

diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index cc4b34854fc..959dd4ef30f 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -11,7 +11,7 @@
 pub use self::AnnNode::*;
 
 use abi::{self, Abi};
-use ast::{self, BlockCheckMode, PatKind, RangeEnd};
+use ast::{self, BlockCheckMode, PatKind, RangeEnd, RangeSyntax};
 use ast::{SelfKind, RegionTyParamBound, TraitTyParamBound, TraitBoundModifier};
 use ast::Attribute;
 use util::parser::{self, AssocOp, Fixity};
@@ -2590,7 +2590,8 @@ impl<'a> State<'a> {
                 self.print_expr(begin)?;
                 self.s.space()?;
                 match *end_kind {
-                    RangeEnd::Included => self.s.word("...")?,
+                    RangeEnd::Included(RangeSyntax::DotDotDot) => self.s.word("...")?,
+                    RangeEnd::Included(RangeSyntax::DotDotEq) => self.s.word("..=")?,
                     RangeEnd::Excluded => self.s.word("..")?,
                 }
                 self.print_expr(end)?;