trait Unapplies extends TreeDSL
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object
CODE
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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- def +(other: String): String
- def ->[B](y: B): (Unapplies, B)
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
caseClassCopyMeth(cdef: Global.ClassDef): Option[Global.DefDef]
Generates copy methods for case classes.
Generates copy methods for case classes. Copy only has defaults on the first parameter list, as of scala/bug#5009.
The parameter types of the copy method need to be exactly the same as the parameter types of the primary constructor. Just copying the TypeTree is not enough: a type
C
might refer to something else *inside* the class (i.e. as parameter type ofcopy
) than *outside* the class (i.e. in the class parameter list).One such example is t0054.scala: class A { case class B(x: C) extends A { def copy(x: C = x) = ... } class C {} } (1) (2)
The reference (1) to C is
A.this.C
. The reference (2) isB.this.C
- not the same.This is fixed with a hack currently.
Unapplies.caseClassCopyMeth
, which creates the copy method, uses emptyTypeTree()
nodes for parameter types.In
Namers.enterDefDef
, the copy method gets a special type completer (enterCopyMethod
). Before computing the body type ofcopy
, the class parameter types are assigned the copy method parameters.This attachment class stores the copy method parameter ValDefs as an attachment in the ClassDef of the case class.
-
def
caseModuleApplyMeth(cdef: Global.ClassDef): Global.DefDef
The apply method corresponding to a case class
-
def
caseModuleDef(cdef: Global.ClassDef): Global.ModuleDef
The module corresponding to a case class; overrides toString to show the module's name
-
def
caseModuleUnapplyMeth(cdef: Global.ClassDef): Global.DefDef
The unapply method corresponding to a case class
-
def
clone(): AnyRef
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- @throws( ... ) @native()
- def companionModuleDef(cdef: Global.ClassDef, parents: List[Global.Tree] = Nil, body: List[Global.Tree] = Nil): Global.ModuleDef
-
def
directUnapplyMember(tp: Global.Type): Global.Symbol
Returns unapply or unapplySeq if available, without further checks.
- def ensuring(cond: (Unapplies) ⇒ Boolean, msg: ⇒ Any): Unapplies
- def ensuring(cond: (Unapplies) ⇒ Boolean): Unapplies
- def ensuring(cond: Boolean, msg: ⇒ Any): Unapplies
- def ensuring(cond: Boolean): Unapplies
-
final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
factoryMeth(mods: Global.Modifiers, name: Global.TermName, cdef: Global.ClassDef): Global.DefDef
The apply method corresponding to a case class
-
def
finalize(): Unit
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- @throws( classOf[java.lang.Throwable] )
- def formatted(fmtstr: String): String
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final
def
getClass(): Class[_]
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- @native()
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
- Definition Classes
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def
unapplyMember(tp: Global.Type): Global.Symbol
Filters out unapplies with multiple (non-implicit) parameter lists, as they cannot be used as extractors
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
- Definition Classes
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- def →[B](y: B): (Unapplies, B)
- object HasUnapply
The Scala compiler and reflection APIs.