Scala Compiler 2.13.16 - scala.tools.nsc.interpreter.IMain.exprTyper
Keywords: Scala Compiler 2.13.16 scala.tools.nsc.interpreter.IMain.exprTyper

Scala Compiler2.13.16 < 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
  Definition Classes
    nsc
-  class IMain extends Repl with Imports with PresentationCompilation with Closeable

  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
- replOutput
- typerOp

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scala.tools.nsc.interpreter.IMain

# exprTyper

###

#### object exprTyper extends ExprTyper

Source
  IMain.scala

Linear Supertypes
ExprTyper, AnyRef, Any

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. exprTyper
2. ExprTyper
3. AnyRef
4. Any

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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.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
4.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
5.  def clone(): AnyRef
   Attributes
     protected[lang]
   Definition Classes
     AnyRef
   Annotations
     @throws(classOf[java.lang.CloneNotSupportedException]) @native()
6.  final def eq(arg0: AnyRef): Boolean
   Definition Classes
     AnyRef
7.  def equals(arg0: AnyRef): Boolean
   Definition Classes
     AnyRef → Any
8.  def finalize(): Unit
   Attributes
     protected[lang]
   Definition Classes
     AnyRef
   Annotations
     @throws(classOf[java.lang.Throwable])
9.  final def getClass(): Class[_ <: AnyRef]
   Definition Classes
     AnyRef → Any
   Annotations
     @native()
10.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
11.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
12.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
13.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
14.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
15.  val repl: IMain.this.type
    Definition Classes
      exprTyper → ExprTyper
16.  def symbolOfLine(code: String): Global.Symbol
    Definition Classes
      ExprTyper
17.  final def synchronized[T0](arg0: => T0): T0
    Definition Classes
      AnyRef
18.  def toString(): String
    Definition Classes
      AnyRef → Any
19.  def typeOfExpression(expr: String, silent: Boolean = true): Global.Type
    Definition Classes
      ExprTyper
20.  def typeOfTypeString(typeString: String): Global.Type
    Definition Classes
      ExprTyper
21.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
22.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
23.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()

### Inherited from ExprTyper

### Inherited from AnyRef

### Inherited from Any

### Ungrouped