Scala Compiler2.12.4 < Back
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# 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 interpreter

  The main REPL related classes and values are as follows.

  The main REPL related classes and values are as follows. In addition to standard compiler classes Global and Settings, there are:

  History: an interface for session history. Completion: an interface for tab completion. ILoop (formerly InterpreterLoop): The umbrella class for a session. IMain (formerly Interpreter): Handles the evolving state of the session and handles submitting code to the compiler and handling the output. InteractiveReader: how ILoop obtains input. History: an interface for session history. Completion: an interface for tab completion. Power: a repository for more advanced/experimental features.

  ILoop contains { in: InteractiveReader, intp: IMain, settings: Settings, power: Power } InteractiveReader contains { history: History, completion: Completion } IMain contains { global: Global }

  Definition Classes
    nsc
-  class IMain extends Imports with PresentationCompilation

  An interpreter for Scala code.

  An interpreter for Scala code.

  The main public entry points are compile(), interpret(), and bind(). The compile() method loads a complete Scala file. The interpret() method executes one line of Scala code at the request of the user. The bind() method binds an object to a variable that can then be used by later interpreted code.

  The overall approach is based on compiling the requested code and then using a Java classloader and Java reflection to run the code and access its results.

  In more detail, a single compiler instance is used to accumulate all successfully compiled or interpreted Scala code. To "interpret" a line of code, the compiler generates a fresh object that includes the line of code and which has public member(s) to export all variables defined by that code. To extract the result of an interpreted line to show the user, a second "result object" is created which imports the variables exported by the above object and then exports members called "$eval" and "$print". To accommodate user expressions that read from variables or methods defined in previous statements, "import" statements are used.

  This interpreter shares the strengths and weaknesses of using the full compiler-to-Java. The main strength is that interpreted code behaves exactly as does compiled code, including running at full speed. The main weakness is that redefining classes and methods is not handled properly, because rebinding at the Java level is technically difficult.

  Definition Classes
    interpreter
- ComputedImports
- PhaseDependentOps
- PresentationCompileResult
- ReadEvalPrint
- ReplTypeOps
- Request
- deconstruct
- exprTyper
- flatOp
- naming
- parse
- replOutput
- typerOp

o

scala.tools.nsc.interpreter.IMain

# deconstruct 

###

#### object deconstruct extends StructuredTypeStrings

Source
  IMain.scala

Linear Supertypes
StructuredTypeStrings, DestructureTypes, AnyRef, Any
Content Hierarchy
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Inherited

1. deconstruct
2. StructuredTypeStrings
3. DestructureTypes
4. AnyRef
5. Any

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Visibility

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### Type Members

1.  trait DestructureType[Node] extends (Global.Type) ⇒ Node
   Definition Classes
     DestructureTypes
2.  case class Grouping(ldelim: String, mdelim: String, rdelim: String, labels: Boolean) extends Product with Serializable
   Definition Classes
     StructuredTypeStrings
3.  case class LabelAndType(label: String, typeName: String) extends Product with Serializable
   Definition Classes
     StructuredTypeStrings
4.  class MonoFunction extends TypeProduct
   Definition Classes
     StructuredTypeStrings
5.  class NullaryFunction extends TypeProduct

   For a NullaryMethod, in = TypeEmpty; for MethodType(Nil, _) in = TypeNil

   For a NullaryMethod, in = TypeEmpty; for MethodType(Nil, _) in = TypeNil

   Definition Classes
     StructuredTypeStrings
6.  class PolyFunction extends TypeProduct
   Definition Classes
     StructuredTypeStrings
7.  case class TypeAtom[T](atom: T) extends TypeNode with Product with Serializable
   Definition Classes
     StructuredTypeStrings
8.  class TypeList extends TypeProduct
   Definition Classes
     StructuredTypeStrings
9.  sealed abstract class TypeNode extends AnyRef
   Definition Classes
     StructuredTypeStrings
10.  case class TypeProduct(nodes: List[TypeNode]) extends TypeNode with Product with Serializable
    Definition Classes
      StructuredTypeStrings

### Value Members

1.  final def !=(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
2.  final def ##(): Int
   Definition Classes
     AnyRef → Any
3.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
4.  val BlockGrouping: Grouping
   Definition Classes
     StructuredTypeStrings
5.  val ListGrouping: Grouping
   Definition Classes
     StructuredTypeStrings
6.  val NoGrouping: Grouping
   Definition Classes
     StructuredTypeStrings
7.  val ProductGrouping: Grouping
   Definition Classes
     StructuredTypeStrings
8.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
9.  def clone(): AnyRef
   Attributes
     protected[java.lang]
   Definition Classes
     AnyRef
   Annotations
     @native() @throws( ... )
10.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
11.  def equals(arg0: Any): Boolean
    Definition Classes
      AnyRef → Any
12.  def finalize(): Unit
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
13.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
14.  val global: IMain.global.type
    Definition Classes
      deconstruct → StructuredTypeStrings → DestructureTypes
15.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
16.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
17.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
18.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
19.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
20.  def show(tp: Global.Type): String
    Definition Classes
      StructuredTypeStrings
21.  final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
      AnyRef
22.  def toString(): String
    Definition Classes
      AnyRef → Any
23.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
24.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
25.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @native() @throws( ... )
26.  object LabelAndType extends Serializable
    Definition Classes
      StructuredTypeStrings
27.  object TypeEmpty extends TypeNode
    Definition Classes
      StructuredTypeStrings
28.  object intoNodes extends DestructureType[TypeNode]
    Definition Classes
      StructuredTypeStrings

### Inherited from StructuredTypeStrings

### Inherited from DestructureTypes

### Inherited from AnyRef

### Inherited from Any

### Ungrouped