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Scala example source code file (Warnings.scala)
The Scala Warnings.scala source code/* NSC -- new Scala compiler * Copyright 2005-2011 LAMP/EPFL * @author Paul Phillips */ package scala.tools package nsc package settings import annotation.elidable import scala.tools.util.PathResolver.Defaults import scala.collection.mutable.HashSet /** Settings influencing the printing of warnings. */ trait Warnings { self: MutableSettings => // Warning semantics. val fatalWarnings = BooleanSetting("-Xfatal-warnings", "Fail the compilation if there are any warnings.") // These warnings are all so noisy as to be useless in their // present form, but have the potential to offer useful info. protected def allWarnings = lintWarnings ++ List( warnSelectNullable, warnValueDiscard, warnNumericWiden ) // These warnings should be pretty quiet unless you're doing // something inadvisable. protected def lintWarnings = List( warnDeadCode, warnInaccessible, warnNullaryOverride, warnNullaryUnit ) // Warning groups. val lint = ( BooleanSetting("-Xlint", "Enable recommended additional warnings.") withPostSetHook (_ => lintWarnings foreach (_.value = true)) ) val warnEverything = ( BooleanSetting("-Ywarn-all", "Enable all -Y warnings.") withPostSetHook (_ => lintWarnings foreach (_.value = true)) ) // Individual warnings. val warnSelectNullable = BooleanSetting ("-Xcheck-null", "Warn upon selection of nullable reference.") val warnDeadCode = BooleanSetting ("-Ywarn-dead-code", "Warn when dead code is identified.") val warnValueDiscard = BooleanSetting ("-Ywarn-value-discard", "Warn when non-Unit expression results are unused.") val warnNumericWiden = BooleanSetting ("-Ywarn-numeric-widen", "Warn when numerics are widened.") val warnNullaryUnit = BooleanSetting ("-Ywarn-nullary-unit", "Warn when nullary methods return Unit.") val warnInaccessible = BooleanSetting ("-Ywarn-inaccessible", "Warn about inaccessible types in method signatures.") val warnNullaryOverride = BooleanSetting ("-Ywarn-nullary-override", "Warn when non-nullary overrides nullary, e.g. `def foo()` over `def foo`.") // Backward compatibility. def Xwarnfatal = fatalWarnings def Xchecknull = warnSelectNullable def Ywarndeadcode = warnDeadCode } Other Scala examples (source code examples)Here is a short list of links related to this Scala Warnings.scala source code file: |
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