diff options
Diffstat (limited to 'compiler/rustc_serialize/src/json.rs')
| -rw-r--r-- | compiler/rustc_serialize/src/json.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_serialize/src/json.rs b/compiler/rustc_serialize/src/json.rs index 6c8965aa2e3..bbbe568f17a 100644 --- a/compiler/rustc_serialize/src/json.rs +++ b/compiler/rustc_serialize/src/json.rs @@ -1859,7 +1859,7 @@ impl<T: Iterator<Item = char>> Parser<T> { } let n2 = self.decode_hex_escape()?; - if n2 < 0xDC00 || n2 > 0xDFFF { + if !(0xDC00..=0xDFFF).contains(&n2) { return self.error(LoneLeadingSurrogateInHexEscape); } let c = |