Add a future compatibility note

petrochenkov · petrochenkov · commit af96402cc88a · 2015-11-19T11:41:09.000+03:00
diff --git a/src/librustc_typeck/check/_match.rs b/src/librustc_typeck/check/_match.rs
@@ -674,6 +674,10 @@ pub fn check_pat_enum<'a, 'tcx>(pcx: &pat_ctxt<'a, 'tcx>,
                 report_bad_struct_kind(is_special_case);
                 if !is_special_case {
                     return
+                } else {
+                    span_note!(tcx.sess, pat.span,
+                        "this warning will become a HARD ERROR in a future release. \
+                        See RFC 218 for details.");
                 }
             }
             (variant.fields

Original file line number	Diff line number	Diff line change
`@@ -674,6 +674,10 @@ pub fn check_pat_enum<'a, 'tcx>(pcx: &pat_ctxt<'a, 'tcx>,`
`674`	`674`	`report_bad_struct_kind(is_special_case);`
`675`	`675`	`if !is_special_case {`
`676`	`676`	`return`
	`677`	`+ } else {`
	`678`	`+ span_note!(tcx.sess, pat.span,`
	`679`	`+ "this warning will become a HARD ERROR in a future release. \`
	`680`	`+ See RFC 218 for details.");`
`677`	`681`	`}`
`678`	`682`	`}`
`679`	`683`	`(variant.fields`