abstract class LabelDefExtractor extends AnyRef
An extractor class to create and pattern match with syntax LabelDef(name, params, rhs).
This AST node does not have direct correspondence to Scala code. It is used for tailcalls and like. For example, while/do are desugared to label defs as follows:
while (cond) body ==> LabelDef($L, List(), if (cond) { body; L$() } else ())
do body while (cond) ==> LabelDef($L, List(), body; if (cond) L$() else ())
- Source
- Trees.scala
Linear Supertypes
Type Hierarchy
Ordering
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- By Inheritance
Inherited
- LabelDefExtractor
- AnyRef
- Any
Implicitly
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
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Visibility
- Public
- Protected
Instance Constructors
- new LabelDefExtractor()
Abstract Value Members
- abstract def apply(name: Universe.TermName, params: List[Universe.Ident], rhs: Universe.Tree): Universe.LabelDef
- abstract def unapply(labelDef: Universe.LabelDef): Option[(Universe.TermName, List[Universe.Ident], Universe.Tree)]
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toany2stringadd[Universe.LabelDefExtractor] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (Universe.LabelDefExtractor, B)
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toArrowAssoc[Universe.LabelDefExtractor] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def ensuring(cond: (Universe.LabelDefExtractor) => Boolean, msg: => Any): Universe.LabelDefExtractor
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toEnsuring[Universe.LabelDefExtractor] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (Universe.LabelDefExtractor) => Boolean): Universe.LabelDefExtractor
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toEnsuring[Universe.LabelDefExtractor] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): Universe.LabelDefExtractor
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toEnsuring[Universe.LabelDefExtractor] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): Universe.LabelDefExtractor
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toEnsuring[Universe.LabelDefExtractor] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toStringFormat[Universe.LabelDefExtractor] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
Deprecated Value Members
- def apply(sym: Universe.Symbol, params: List[Universe.Symbol], rhs: Universe.Tree)(implicit token: Universe.CompatToken): Universe.LabelDef
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) use
internal.labelDefinstead- See also
- def →[B](y: B): (Universe.LabelDefExtractor, B)
- Implicit
- This member is added by an implicit conversion from Universe.LabelDefExtractor toArrowAssoc[Universe.LabelDefExtractor] 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.