diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/feature_gate.rs | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs index d20e94b018b..120dff2dbb9 100644 --- a/src/libsyntax/feature_gate.rs +++ b/src/libsyntax/feature_gate.rs @@ -1242,10 +1242,9 @@ fn leveled_feature_err<'a>(sess: &'a ParseSess, feature: &str, span: Span, issue GateIssue::Library(lib) => lib, }; - let explanation = if let Some(n) = issue { - format!("{} (see issue #{})", explain, n) - } else { - explain.to_owned() + let explanation = match issue { + None | Some(0) => explain.to_owned(), + Some(n) => format!("{} (see issue #{})", explain, n) }; let mut err = match level { |