我使用SBT建設項目,並在我的Build.scala
:發出警告名Scala的陰影2.11
scalacOptions ++= Seq("-unchecked", "-deprecation", "-feature", "-Xfatal-warnings")
如何配置該項目上的名稱/可變陰影警告?我瀏覽過源here和here,但在許多選項中沒有看到我正在尋找的內容。對this old question的評論提到一個標誌-Ywarn-shadowing
,似乎並不存在。
我使用SBT建設項目,並在我的Build.scala
:發出警告名Scala的陰影2.11
scalacOptions ++= Seq("-unchecked", "-deprecation", "-feature", "-Xfatal-warnings")
如何配置該項目上的名稱/可變陰影警告?我瀏覽過源here和here,但在許多選項中沒有看到我正在尋找的內容。對this old question的評論提到一個標誌-Ywarn-shadowing
,似乎並不存在。
如related question所示,您可以開始使用-X
進行探索。然後,我嘗試-Xlint:help
,這爲產生陰影的一些設置:
Information:scalac: Enable or disable specific warnings
adapted-args Warn if an argument list is modified to match
the receiver.
nullary-unit Warn when nullary methods return Unit.
inaccessible Warn about inaccessible types in method signatures.
nullary-override Warn when non-nullary `def f()' overrides nullary
`def f'.
infer-any Warn when a type argument is inferred to be `Any`.
missing-interpolator A string literal appears to be missing an
interpolator id.
doc-detached A ScalaDoc comment appears to be detached from its
element.
private-shadow A private field (or class parameter) shadows a
superclass field.
type-parameter-shadow A local type parameter shadows a type already in
scope.
poly-implicit-overload Parameterized overloaded implicit methods are not
visible as view bounds.
option-implicit Option.apply used implicit view.
delayedinit-select Selecting member of DelayedInit.
by-name-right-associative By-name parameter of right associative operator.
package-object-classes Class or object defined in package object.
unsound-match Pattern match may not be typesafe.
stars-align Pattern sequence wildcard must align with sequence
component.
也許-Xlint:private-shadow
是你想要的嗎?
謝謝,這有助於,但我正在尋找變量的陰影,例如嵌套作用域中的'val',或者映射函數或方法參數的'val'。它看起來可能不可能,這對我來說有點杜鵑。 – jberryman
有許多斯卡拉短絨工具。 Scapegoat有一個選項VariableShadowing
。我沒有看到更受歡迎的絨毛中的陰影選項,但是您可以自己實現一個。
也許有人知道一個scala守護者或疣卸妝。我手邊沒有看到它。還有其他用例:http://stackoverflow.com/questions/27587965/scala-making-sure-that-a-field-from-the-superclass-is-used https://issues.scala-lang.org /瀏覽/ SI-9100 https://issues.scala-lang.org/browse/SI-4762 –
這包括情緒:http://stackoverflow.com/questions/12385293/how-can-i-get-scalac - 告訴我,如果我有,未使用的變量 –