Scala Compiler2.13.9 < Back


# Packages

-  package root

  The Scala compiler and reflection APIs.

  The Scala compiler and reflection APIs.

  Definition Classes
    root
-  package scala
  Definition Classes
    root
-  package tools
  Definition Classes
    scala
-  package nsc
  Definition Classes
    tools
-  package settings
  Definition Classes
    nsc
- AbsSettings
- AnyScalaVersion
- DefaultPathFactory
- Development
- Final
- Milestone
- MutableSettings
- NoScalaVersion
- PathFactory
- RC
- ScalaBuild
- ScalaSettings
- ScalaVersion
- SpecificScalaVersion
- StandardScalaSettings
- Warnings

t

scala.tools.nsc.settings

# Warnings

###

#### trait Warnings extends AnyRef

Settings influencing the printing of warnings.

Self Type
  MutableSettings
Source
  Warnings.scala

Linear Supertypes
AnyRef, Any
Known Subclasses
GenericRunnerSettings, Settings, Settings, FscSettings, MutableSettings, ScalaSettings
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. Warnings
2. AnyRef
3. Any

Implicitly

1. by any2stringadd
2. by StringFormat
3. by Ensuring
4. by ArrowAssoc

1. Hide All
2. Show All

Visibility

1. Public
2. Protected

### Value Members

1.  final def !=(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
2.  final def ##: Int
   Definition Classes
     AnyRef → Any
3.  def +(other: String): String
   Implicit
     This member is added by an implicit conversion from Warnings toany2stringadd[Warnings] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (Warnings, B)
   Implicit
     This member is added by an implicit conversion from Warnings toArrowAssoc[Warnings] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  val Wconf: MultiStringSetting
7.  val Whelp: BooleanSetting
8.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
9.  def clone(): AnyRef
   Attributes
     protected[lang]
   Definition Classes
     AnyRef
   Annotations
     @throws(classOf[java.lang.CloneNotSupportedException]) @native()
10.  def ensuring(cond: (Warnings) => Boolean, msg: => Any): Warnings
    Implicit
      This member is added by an implicit conversion from Warnings toEnsuring[Warnings] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
11.  def ensuring(cond: (Warnings) => Boolean): Warnings
    Implicit
      This member is added by an implicit conversion from Warnings toEnsuring[Warnings] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
12.  def ensuring(cond: Boolean, msg: => Any): Warnings
    Implicit
      This member is added by an implicit conversion from Warnings toEnsuring[Warnings] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
13.  def ensuring(cond: Boolean): Warnings
    Implicit
      This member is added by an implicit conversion from Warnings toEnsuring[Warnings] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
14.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
15.  def equals(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef → Any
16.  val fatalWarnings: BooleanSetting
17.  def finalize(): Unit
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
18.  final def getClass(): Class[_ <: AnyRef]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
19.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
20.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
21.  val lint: MultiChoiceSetting[MutableSettings.LintWarnings.type]
22.  def lintDeprecation: Boolean
23.  def lintImplicitNotFound: Boolean
24.  def lintImplicitRecursion: Boolean
25.  def lintUniversalMethods: Boolean
26.  def lintUnused: Boolean
27.  def lintValPatterns: Boolean
28.  def multiargInfix: Boolean
29.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
30.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
31.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
32.  final def synchronized[T0](arg0: => T0): T0
    Definition Classes
      AnyRef
33.  def toString(): String
    Definition Classes
      AnyRef → Any
34.  def unitSpecialization: Boolean
35.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
36.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
37.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()
38.  def warnAdaptedArgs: Boolean
39.  def warnByNameImplicit: Boolean
40.  def warnCaptured: Boolean
41.  def warnConstant: Boolean
42.  val warnDeadCode: BooleanSetting
43.  def warnDelayedInit: Boolean
44.  def warnDocDetached: Boolean
45.  def warnEtaSam: Boolean
46.  def warnEtaZero: Boolean
47.  val warnExtraImplicit: BooleanSetting
48.  def warnInaccessible: Boolean
49.  def warnInferAny: Boolean
50.  val warnMacros: ChoiceSetting
51.  def warnMissingInterpolator: Boolean
52.  val warnNonUnitIf: BooleanSetting
53.  val warnNonUnitStatement: warnNonUnitStatement._1.type.s.type forSome {val _1: EnableSettings[BooleanSetting]}
54.  def warnNonlocalReturn: Boolean
55.  def warnNullaryUnit: Boolean
56.  val warnNumericWiden: BooleanSetting
57.  val warnOctalLiteral: BooleanSetting
58.  def warnOptionImplicit: Boolean
59.  def warnPackageObjectClasses: Boolean
60.  val warnPerformance: MultiChoiceSetting[MutableSettings.PerformanceWarnings.type]
61.  def warnPolyImplicitOverload: Boolean
62.  def warnPrivateShadow: Boolean
63.  def warnRecurseWithDefault: Boolean
64.  def warnSerialization: Boolean
65.  def warnStarsAlign: Boolean
66.  def warnStrictUnsealedPatMat: Boolean
67.  def warnTypeParameterShadow: Boolean
68.  val warnUnused: MultiChoiceSetting[MutableSettings.UnusedWarnings.type]
69.  def warnUnusedExplicits: Boolean
70.  def warnUnusedImplicits: Boolean
71.  def warnUnusedImport: Boolean
72.  def warnUnusedLocals: Boolean
73.  def warnUnusedNowarn: Boolean
74.  def warnUnusedParams: Boolean
75.  def warnUnusedPatVars: Boolean
76.  def warnUnusedPrivates: Boolean
77.  def warnUnusedSynthetics: Boolean
78.  val warnValueDiscard: BooleanSetting
79.  val warnValueOverrides: BooleanSetting
80.  object LintWarnings extends MultiChoiceEnumeration
81.  object PerformanceWarnings extends MultiChoiceEnumeration
82.  object UnusedWarnings extends MultiChoiceEnumeration

### Deprecated Value Members

1.  def Xchecknull: BooleanSetting
   Annotations
     @deprecated
   Deprecated

     (Since version 2.11.0) This option is being removed

2.  def Xwarnfatal: BooleanSetting
   Annotations
     @deprecated
   Deprecated

     (Since version 2.11.0) Use fatalWarnings

3.  def Ywarndeadcode: BooleanSetting
   Annotations
     @deprecated
   Deprecated

     (Since version 2.11.0) Use warnDeadCode

4.  def formatted(fmtstr: String): String
   Implicit
     This member is added by an implicit conversion from Warnings toStringFormat[Warnings] performed by method StringFormat in scala.Predef.
   Definition Classes
     StringFormat
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.12.16) Use `formatString.format(value)` instead of `value.formatted(formatString)`, or use the `f""` string interpolator. In Java 15 and later, `formatted` resolves to the new method in String which has reversed parameters.

5.  val warnSelfImplicit: BooleanSetting
   Annotations
     @deprecated
   Deprecated

     (Since version 2.13.3) Use lintImplicitRecursion

6.  def →[B](y: B): (Warnings, B)
   Implicit
     This member is added by an implicit conversion from Warnings toArrowAssoc[Warnings] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.13.0) Use `->` instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd fromWarnings to any2stringadd[Warnings]

### Inherited by implicit conversion StringFormat fromWarnings to StringFormat[Warnings]

### Inherited by implicit conversion Ensuring fromWarnings to Ensuring[Warnings]

### Inherited by implicit conversion ArrowAssoc fromWarnings to ArrowAssoc[Warnings]

### Ungrouped