From 22f98d5189b61200aaf11cec7a0a96d5cfa86a5e Mon Sep 17 00:00:00 2001 From: Som Snytt Date: Mon, 19 Sep 2016 00:46:17 -0700 Subject: SI-8040 Warn unused parameters One can `-Ywarn-unused:params` or more narrowly warn only for unused implicit parameters with `-Ywarn-unused:implicits`. Params includes constructor parameters. The settings for privates and locals are not yet distinguished. ``` $ skalac -Ywarn-unused:help Enable or disable specific `unused' warnings imports Warn if an import selector is not referenced. patvars Warn if a variable bound in a pattern is unused. privates Warn if a private member is unused. locals Warn if a local definition is unused. params Warn if a value parameter is unused. implicits Warn if an implicit parameter is unused. ``` --- test/files/neg/warn-unused-privates.scala | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'test/files/neg/warn-unused-privates.scala') diff --git a/test/files/neg/warn-unused-privates.scala b/test/files/neg/warn-unused-privates.scala index bc2799067e..f0580f02d5 100644 --- a/test/files/neg/warn-unused-privates.scala +++ b/test/files/neg/warn-unused-privates.scala @@ -189,3 +189,7 @@ trait Forever { } yield 42 // val emitted only if needed, hence nothing unused } } + +trait Ignorance { + private val readResolve = 42 // ignore +} -- cgit v1.2.3