Scala Compiler2.12.0 < Back
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# Packages

-  package root

  The Scala compiler API.

  The Scala compiler API.

  The following resources are useful for Scala plugin/compiler development:

  - Scala development tutorials on www.scala-lang.org
  - Scala Internals wiki
  - Scala compiler corner, maintained by Miguel
  Definition Classes
    root
-  package scala
  Definition Classes
    root
-  package tools
  Definition Classes
    scala
-  package nsc
  Definition Classes
    tools
-  package ast
  Definition Classes
    nsc
-  trait Trees extends reflect.internal.Trees
  Definition Classes
    ast
- Alternative
- Alternative
- AlternativeApi
- AlternativeExtractor
- Annotated
- Annotated
- AnnotatedApi
- AnnotatedExtractor
- AppliedTypeTree
- AppliedTypeTree
- AppliedTypeTreeApi
- AppliedTypeTreeExtractor
- Apply
- Apply
- ApplyApi
- ApplyDynamic
- ApplyExtractor
- ApplyImplicitView
- ApplyToImplicitArgs
- ArrayValue
- Assign
- Assign
- AssignApi
- AssignExtractor
- AssignOrNamedArg
- AssignOrNamedArg
- AssignOrNamedArgApi
- AssignOrNamedArgExtractor
- Bind
- Bind
- BindApi
- BindExtractor
- Block
- Block
- BlockApi
- BlockExtractor
- CannotHaveAttrs
- CaseDef
- CaseDef
- CaseDefApi
- CaseDefExtractor
- ChangeOwnerTraverser
- ClassDef
- ClassDef
- ClassDefApi
- ClassDefExtractor
- CollectTreeTraverser
- CompoundTypeTree
- CompoundTypeTree
- CompoundTypeTreeApi
- CompoundTypeTreeExtractor
- DefDef
- DefDef
- DefDefApi
- DefDefExtractor
- DefTree
- DefTreeApi
- DocDef
- EmptyTree
- ExistentialTypeTree
- ExistentialTypeTree
- ExistentialTypeTreeApi
- ExistentialTypeTreeExtractor
- FilterTreeTraverser
- FindTreeTraverser
- ForeachPartialTreeTraverser
- ForeachTreeTraverser
- Function
- Function
- FunctionApi
- FunctionExtractor
- GenericApply
- GenericApplyApi
- Ident
- Ident
- IdentApi
- IdentExtractor
- If
- If
- IfApi
- IfExtractor
- ImplDef
- ImplDefApi
- Import
- Import
- ImportApi
- ImportExtractor
- ImportSelector
- ImportSelector
- ImportSelectorApi
- ImportSelectorExtractor
- InjectDerivedValue
- InternalTreeCopierOps
- LabelDef
- LabelDef
- LabelDefApi
- LabelDefExtractor
- LazyTreeCopier
- Literal
- Literal
- LiteralApi
- LiteralExtractor
- Match
- Match
- MatchApi
- MatchExtractor
- MemberDef
- MemberDefApi
- Modifiers
- Modifiers
- ModifiersApi
- ModifiersExtractor
- ModuleDef
- ModuleDef
- ModuleDefApi
- ModuleDefExtractor
- NameTree
- NameTreeApi
- New
- New
- NewApi
- NewExtractor
- PackageDef
- PackageDef
- PackageDefApi
- PackageDefExtractor
- Parens
- PostfixSelect
- RefTree
- RefTree
- RefTreeApi
- RefTreeExtractor
- ReferenceToBoxed
- ReferenceToBoxed
- Return
- Return
- ReturnApi
- ReturnExtractor
- Select
- Select
- SelectApi
- SelectExtractor
- SelectFromArray
- SelectFromTypeTree
- SelectFromTypeTree
- SelectFromTypeTreeApi
- SelectFromTypeTreeExtractor
- SingletonTypeTree
- SingletonTypeTree
- SingletonTypeTreeApi
- SingletonTypeTreeExtractor
- Star
- Star
- StarApi
- StarExtractor
- StrictTreeCopier
- Super
- Super
- SuperApi
- SuperExtractor
- SymTree
- SymTreeApi
- Template
- Template
- TemplateApi
- TemplateExtractor
- TermTree
- TermTreeApi
- This
- This
- ThisApi
- ThisExtractor
- ThisSubstituter
- Throw
- Throw
- ThrowApi
- ThrowExtractor
- Transformer
- Traverser
- Tree
- TreeApi
- TreeContextApiImpl
- TreeCopier
- TreeCopierOps
- TreeReplacer
- TreeStackTraverser
- TreeSubstituter
- TreeSymSubstTraverser
- TreeSymSubstituter
- TreeTypeSubstituter
- Try
- Try
- TryApi
- TryExtractor
- TypTree
- TypTreeApi
- TypeApply
- TypeApply
- TypeApplyApi
- TypeApplyExtractor
- TypeBoundsTree
- TypeBoundsTree
- TypeBoundsTreeApi
- TypeBoundsTreeExtractor
- TypeDef
- TypeDef
- TypeDefApi
- TypeDefExtractor
- TypeMapTreeSubstituter
- TypeTree
- TypeTree
- TypeTreeApi
- TypeTreeExtractor
- TypeTreeWithDeferredRefCheck
- Typed
- Typed
- TypedApi
- TypedExtractor
- UnApply
- UnApply
- UnApplyApi
- UnApplyExtractor
- UnderConstructionTransformer
- ValDef
- ValDef
- ValDefApi
- ValDefExtractor
- ValOrDefDef
- ValOrDefDef
- ValOrDefDefApi
- noSelfType
- noopTransformer
- pendingSuperCall
- resetPos
- treeInfo

c

scala.tools.nsc.ast.Trees

# Parens 

###

#### case class Parens(args: List[Global.Tree]) extends Global.Tree with Product with Serializable

Only used during parsing

Source
  Trees.scala

Linear Supertypes
Serializable, java.io.Serializable, Global.Tree, Global.Attachable, Global.TreeContextApiImpl, Global.TreeApi, Product, Equals, AnyRef, Any
Type Hierarchy
 
Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. Parens
2. Serializable
3. Serializable
4. Tree
5. Attachable
6. TreeContextApiImpl
7. TreeApi
8. Product
9. Equals
10. AnyRef
11. Any

Implicitly

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

1. Hide All
2. Show All

Visibility

1. Public
2. All

### Instance Constructors

1.  new Parens(args: List[Global.Tree])

### 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 Global.Parens to any2stringadd[Global.Parens] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (Global.Parens, B)
   Implicit
     This member is added by an implicit conversion from Global.Parens to ArrowAssoc[Global.Parens] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  val args: List[Global.Tree]
7.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
8.  def attachments: Attachments { type Pos = Trees.this.Position }
   Definition Classes
     Attachable
9.  def canHaveAttrs: Boolean
   Definition Classes
     Tree → TreeApi
10.  def changeOwner(pairs: (Global.Symbol, Global.Symbol)*): Global.Tree
    Definition Classes
      TreeContextApiImpl
11.  def children: List[Global.Tree]
    Definition Classes
      TreeContextApiImpl → TreeApi
12.  def clearType(): Parens.this.type
    Definition Classes
      Tree
13.  def clone(): AnyRef
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
14.  def collect[T](pf: PartialFunction[Global.Tree, T]): List[T]
    Definition Classes
      TreeContextApiImpl → TreeApi
15.  def correspondsStructure(that: Global.Tree)(f: (Global.Tree, Global.Tree) ⇒ Boolean): Boolean
    Definition Classes
      TreeContextApiImpl
16.  def defineType(tp: Global.Type): Parens.this.type
    Definition Classes
      Tree
17.  def duplicate: Parens.this.type
    Definition Classes
      Tree → TreeApi
18.  def ensuring(cond: (Global.Parens) ⇒ Boolean, msg: ⇒ Any): Global.Parens
    Implicit
      This member is added by an implicit conversion from Global.Parens to Ensuring[Global.Parens] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
19.  def ensuring(cond: (Global.Parens) ⇒ Boolean): Global.Parens
    Implicit
      This member is added by an implicit conversion from Global.Parens to Ensuring[Global.Parens] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
20.  def ensuring(cond: Boolean, msg: ⇒ Any): Global.Parens
    Implicit
      This member is added by an implicit conversion from Global.Parens to Ensuring[Global.Parens] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
21.  def ensuring(cond: Boolean): Global.Parens
    Implicit
      This member is added by an implicit conversion from Global.Parens to Ensuring[Global.Parens] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
22.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
23.  def equals(that: Any): Boolean
    Definition Classes
      Tree → Equals → AnyRef → Any
24.  def equalsStructure(that: Global.Tree): Boolean
    Definition Classes
      TreeContextApiImpl → TreeApi
25.  def exists(p: (Global.Tree) ⇒ Boolean): Boolean
    Definition Classes
      TreeContextApiImpl → TreeApi
26.  def filter(f: (Global.Tree) ⇒ Boolean): List[Global.Tree]
    Definition Classes
      TreeContextApiImpl → TreeApi
27.  def finalize(): Unit
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
28.  def find(p: (Global.Tree) ⇒ Boolean): Option[Global.Tree]
    Definition Classes
      TreeContextApiImpl → TreeApi
29.  def forAll(p: (Global.Tree) ⇒ Boolean): Boolean
    Definition Classes
      TreeContextApiImpl → TreeApi
30.  def foreach(f: (Global.Tree) ⇒ Unit): Unit
    Definition Classes
      TreeContextApiImpl → TreeApi
31.  def foreachPartial(pf: PartialFunction[Global.Tree, Global.Tree]): Unit
    Definition Classes
      TreeContextApiImpl
32.  def formatted(fmtstr: String): String
    Implicit
      This member is added by an implicit conversion from Global.Parens to StringFormat[Global.Parens] performed by method StringFormat in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()
33.  def freeTerms: List[Global.FreeTermSymbol]
    Definition Classes
      TreeContextApiImpl
34.  def freeTypes: List[Global.FreeTypeSymbol]
    Definition Classes
      TreeContextApiImpl
35.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
36.  def hasAttachment[T](implicit arg0: ClassTag[T]): Boolean
    Definition Classes
      Attachable
37.  def hasExistingSymbol: Boolean
    Definition Classes
      TreeContextApiImpl
38.  def hasSymbolField: Boolean
    Definition Classes
      Tree
39.  def hasSymbolWhich(f: (Global.Symbol) ⇒ Boolean): Boolean
    Definition Classes
      TreeContextApiImpl
40.  def hashCode(): Int
    Definition Classes
      Tree → AnyRef → Any
41.  val id: Int
    Definition Classes
      Tree
42.  def isDef: Boolean
    Definition Classes
      Tree → TreeApi
43.  def isEmpty: Boolean
    Definition Classes
      Tree → TreeApi
44.  def isErroneous: Boolean
    Definition Classes
      TreeContextApiImpl
45.  def isErrorTyped: Boolean
    Definition Classes
      TreeContextApiImpl
46.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
47.  def isTerm: Boolean
    Definition Classes
      Tree → TreeApi
48.  def isType: Boolean
    Definition Classes
      Tree → TreeApi
49.  def isTyped: Boolean
    Definition Classes
      TreeContextApiImpl
50.  def modifyType(f: (Global.Type) ⇒ Global.Type): Global.Tree
    Definition Classes
      TreeContextApiImpl
51.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
52.  def nonEmpty: Boolean
    Definition Classes
      Tree → TreeApi
53.  final def notify(): Unit
    Definition Classes
      AnyRef
54.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
55.  def orElse(alt: ⇒ Global.Tree): Global.Tree
    Definition Classes
      TreeContextApiImpl → TreeApi
56.  final def pos: Global.Position
    Definition Classes
      Tree → Attachable → TreeApi
57.  def pos_=(pos: Global.Position): Unit
    Definition Classes
      Attachable
58.  val rawatt: Attachments { type Pos = Trees.this.Position }
    Attributes
      protected
    Definition Classes
      Attachable
59.  def removeAttachment[T](implicit arg0: ClassTag[T]): Parens.this.type
    Definition Classes
      Attachable
60.  def setAttachments(attachments: Attachments { type Pos = Trees.this.Position }): Parens.this.type
    Definition Classes
      Attachable
61.  def setPos(newpos: Global.Position): Parens.this.type
    Definition Classes
      Attachable
62.  def setSymbol(sym: Global.Symbol): Parens.this.type
    Definition Classes
      Tree
63.  def setType(tp: Global.Type): Parens.this.type
    Definition Classes
      Tree
64.  def shallowDuplicate: Global.Tree
    Definition Classes
      TreeContextApiImpl
65.  def shortClass: String
    Definition Classes
      TreeContextApiImpl
66.  def substituteSymbols(from: List[Global.Symbol], to: List[Global.Symbol]): Global.Tree
    Definition Classes
      TreeContextApiImpl
67.  def substituteThis(clazz: Global.Symbol, to: ⇒ Global.Tree): Global.Tree
    Definition Classes
      TreeContextApiImpl
68.  def substituteTypes(from: List[Global.Symbol], to: List[Global.Type]): Global.Tree
    Definition Classes
      TreeContextApiImpl
69.  def summaryString: String
    Definition Classes
      TreeContextApiImpl
70.  def symbol: Global.Symbol
    Definition Classes
      Tree → TreeApi
71.  def symbol_=(sym: Global.Symbol): Unit
    Definition Classes
      Tree
72.  final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
      AnyRef
73.  def toString(): String
    Definition Classes
      TreeApi → AnyRef → Any
74.  final def tpe: Global.Type
    Definition Classes
      Tree → TreeApi
75.  def updateAttachment[T](attachment: T)(implicit arg0: ClassTag[T]): Parens.this.type
    Definition Classes
      Attachable
76.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
77.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
78.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
79.  def withFilter(f: (Global.Tree) ⇒ Boolean): List[Global.Tree]
    Definition Classes
      TreeContextApiImpl → TreeApi
80.  def →[B](y: B): (Global.Parens, B)
    Implicit
      This member is added by an implicit conversion from Global.Parens to ArrowAssoc[Global.Parens] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Deprecated Value Members

1.  def hasSymbol: Boolean
   Definition Classes
     Tree
   Annotations
     @deprecated
   Deprecated

     (Since version 2.11.0) use hasSymbolField

2.  def tpe_=(t: Global.Type): Unit
   Definition Classes
     Tree
   Annotations
     @deprecated
   Deprecated

     (Since version 2.11.0) use setType

### Inherited from Serializable

### Inherited from java.io.Serializable

### Inherited from Global.Tree

### Inherited from Global.Attachable

### Inherited from Global.TreeContextApiImpl

### Inherited from Global.TreeApi

### Inherited from Product

### Inherited from Equals

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from Global.Parens to any2stringadd[Global.Parens]

### Inherited by implicit conversion StringFormat from Global.Parens to StringFormat[Global.Parens]

### Inherited by implicit conversion Ensuring from Global.Parens to Ensuring[Global.Parens]

### Inherited by implicit conversion ArrowAssoc from Global.Parens to ArrowAssoc[Global.Parens]

### Ungrouped