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Diffstat (limited to 'src/reflect/scala/reflect/internal/StdAttachments.scala')
| -rw-r--r-- | src/reflect/scala/reflect/internal/StdAttachments.scala | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/reflect/scala/reflect/internal/StdAttachments.scala b/src/reflect/scala/reflect/internal/StdAttachments.scala index fc49de1cf6..f72c1eb1b3 100644 --- a/src/reflect/scala/reflect/internal/StdAttachments.scala +++ b/src/reflect/scala/reflect/internal/StdAttachments.scala @@ -57,6 +57,12 @@ trait StdAttachments { */ case object BackquotedIdentifierAttachment extends PlainAttachment + /** Indicates that the host `Ident` has been created from a pattern2 binding, `case x @ p`. + * In the absence of named parameters in patterns, allows nuanced warnings for unused variables. + * Hence, `case X(x = _) =>` would not warn; for now, `case X(x @ _) =>` is documentary if x is unused. + */ + case object AtBoundIdentifierAttachment extends PlainAttachment + /** Identifies trees are either result or intermediate value of for loop desugaring. */ case object ForAttachment extends PlainAttachment |