scala.tools.nsc.ast.parser

# Parsers

#### trait Parsers extends Scanners with MarkupParsers with ParsersCommon

Performs the following context-free rewritings:

- Places all pattern variables in Bind nodes. In a pattern, for identifiers `x`:

                    x  => x @ _
                  x:T  => x @ (_ : T)

- Removes pattern definitions (PatDef's) as follows: If pattern is a simple (typed) identifier:

             val x = e     ==>  val x = e
             val x: T = e  ==>  val x: T = e

if there are no variables in pattern

           val p = e  ==>  e match (case p => ())

if there is exactly one variable in pattern

           val x_1 = e match (case p => (x_1))

if there is more than one variable in pattern

           val p = e  ==>  private synthetic val t$ = e match (case p => (x_1, ..., x_N))
                           val x_1 = t$._1
                           ...
                           val x_N = t$._N

- Removes function types as follows:

           (argtpes) => restpe   ==>   scala.Function_n[argtpes, restpe]

- Wraps naked case definitions in a match as follows:

           { cases }   ==>   (x => x.match {cases}), except when already argument to match

Self Type
  Parsers

Linear Supertypes
ParsersCommon, MarkupParsers, Scanners, ScannersCommon, AnyRef, Any
Known Subclasses
SyntaxAnalyzer, syntaxAnalyzer
Type Hierarchy Learn more about scaladoc diagrams
Ordering

1. Alphabetic
2. By inheritance

Inherited

1. Parsers
2. ParsersCommon
3. MarkupParsers
4. Scanners
5. ScannersCommon
6. AnyRef
7. Any

Implicitly

1. by any2stringadd
2. by any2stringfmt
3. by any2ArrowAssoc
4. by any2Ensuring

1. Hide All
2. Show all

Learn more about member selection
Visibility

1. Public
2. All

### Type Members

1. #### trait CommonTokenData extends AnyRef

   Definition Classes
     ScannersCommon

2. #### class MalformedInput extends Exception

   Definition Classes
     Scanners

3. #### class MarkupParser extends MarkupParserCommon

   Definition Classes
     MarkupParsers

4. #### type Offset = Int

   Offset into source character array

   Offset into source character array

   Definition Classes
     Scanners

5. #### case class OpInfo (operand: Global.Tree, operator: Global.Name, offset: Parsers.Offset) extends Product with Serializable

6. #### class OutlineParser extends SourceFileParser

7. #### class ParensAnalyzer extends UnitScanner

   Definition Classes
     Scanners

8. #### abstract class Parser extends ParserCommon

9. #### abstract class ParserCommon extends AnyRef

   This is now an abstract class, only to work around the optimizer: methods in traits are never inlined.

10. #### abstract class Scanner extends CharArrayReader with TokenData with ScannerCommon

    Definition Classes
      Scanners

11. #### trait ScannerCommon extends CommonTokenData

    Definition Classes
      ScannersCommon

12. #### class SourceFileParser extends Parser

13. #### class SourceFileScanner extends Scanner

    A scanner for a given source file not necessarily attached to a compilation unit.

14. #### trait TokenData extends CommonTokenData

    Definition Classes
      Scanners

15. #### class UnitParser extends SourceFileParser

16. #### class UnitScanner extends SourceFileScanner

    A scanner over a given compilation unit

### Abstract Value Members

1. #### abstract val global: Global

   Definition Classes
     Parsers → ParsersCommon → Scanners → ScannersCommon

### Concrete Value Members

1. #### final def !=(arg0: AnyRef): Boolean

   Definition Classes
     AnyRef

2. #### final def !=(arg0: Any): Boolean

   Definition Classes
     Any

3. #### final def ##(): Int

   Definition Classes
     AnyRef → Any

4. #### def +(other: String): String

   Implicit information
     This member is added by an implicit conversion from Parsers to StringAdd performed by method any2stringadd in scala.Predef.
   Definition Classes
     StringAdd

5. #### def ->[B](y: B): (Parsers, B)

   Implicit information
     This member is added by an implicit conversion from Parsers to ArrowAssoc[Parsers] performed by method any2ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()

6. #### final def ==(arg0: AnyRef): Boolean

   Definition Classes
     AnyRef

7. #### final def ==(arg0: Any): Boolean

   Definition Classes
     Any

8. #### object ConfusedAboutBracesControl extends Throwable with ControlThrowable with Product with Serializable

   Definition Classes
     MarkupParsers

9. #### final val InBlock: Int(1)

10. #### final val InTemplate: Int(2)

11. #### final val Local: Int(0)

12. #### object MissingEndTagControl extends Throwable with ControlThrowable with Product with Serializable

    Definition Classes
      MarkupParsers

13. #### val NoOffset: Offset

    An undefined offset

    An undefined offset

    Definition Classes
      Scanners

14. #### lazy val ScalaValueClassNames: collection.Seq[Global.TypeName]

15. #### object TruncatedXMLControl extends Throwable with ControlThrowable with Product with Serializable

    Definition Classes
      MarkupParsers

16. #### final def asInstanceOf[T0]: T0

    Definition Classes
      Any

17. #### def clone(): AnyRef

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

18. #### def createKeywordArray(keywords: Seq[(Global.Name, Int)], defaultToken: Int): (Int, Array[Int])

    Definition Classes
      ScannersCommon

19. #### def ensuring(cond: (Parsers) ⇒ Boolean, msg: ⇒ Any): Parsers

    Implicit information
      This member is added by an implicit conversion from Parsers to Ensuring[Parsers] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

20. #### def ensuring(cond: (Parsers) ⇒ Boolean): Parsers

    Implicit information
      This member is added by an implicit conversion from Parsers to Ensuring[Parsers] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

21. #### def ensuring(cond: Boolean, msg: ⇒ Any): Parsers

    Implicit information
      This member is added by an implicit conversion from Parsers to Ensuring[Parsers] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

22. #### def ensuring(cond: Boolean): Parsers

    Implicit information
      This member is added by an implicit conversion from Parsers to Ensuring[Parsers] performed by method any2Ensuring in scala.Predef.
    Definition Classes
      Ensuring

23. #### final def eq(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

24. #### def equals(arg0: Any): Boolean

    Definition Classes
      AnyRef → Any

25. #### def finalize(): Unit

    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )

26. #### def formatted(fmtstr: String): String

    Implicit information
      This member is added by an implicit conversion from Parsers to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()

27. #### final def getClass(): Class[_]

    Definition Classes
      AnyRef → Any

28. #### def hashCode(): Int

    Definition Classes
      AnyRef → Any

29. #### final def isInstanceOf[T0]: Boolean

    Definition Classes
      Any

30. #### final def ne(arg0: AnyRef): Boolean

    Definition Classes
      AnyRef

31. #### final def notify(): Unit

    Definition Classes
      AnyRef

32. #### final def notifyAll(): Unit

    Definition Classes
      AnyRef

33. #### final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
      AnyRef

34. #### def toString(): String

    Definition Classes
      AnyRef → Any

35. #### final val token2name: Map[Int, Global.Name]

    Definition Classes
      Scanners

36. #### def token2string(token: Int): String

    Returns the string representation of given token.

    Returns the string representation of given token.

    Definition Classes
      Scanners

37. #### final def wait(): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

38. #### final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

39. #### final def wait(arg0: Long): Unit

    Definition Classes
      AnyRef
    Annotations
      @throws( ... )

40. #### def →[B](y: B): (Parsers, B)

    Implicit information
      This member is added by an implicit conversion from Parsers to ArrowAssoc[Parsers] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Shadowed Implicit Value Members

1. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from Parsers to StringAdd performed by method any2stringadd in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (parsers: StringAdd).self

   Definition Classes
     StringAdd

2. #### val self: Any

   Implicit information
     This member is added by an implicit conversion from Parsers to StringFormat performed by method any2stringfmt in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (parsers: StringFormat).self

   Definition Classes
     StringFormat

### Deprecated Value Members

1. #### def x: Parsers

   Implicit information
     This member is added by an implicit conversion from Parsers to ArrowAssoc[Parsers] performed by method any2ArrowAssoc in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (parsers: ArrowAssoc[Parsers]).x

   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `leftOfArrow`instead``

2. #### def x: Parsers

   Implicit information
     This member is added by an implicit conversion from Parsers to Ensuring[Parsers] performed by method any2Ensuring in scala.Predef.
   Shadowing
     This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
     To access this member you can use a type ascription:

         (parsers: Ensuring[Parsers]).x

   Definition Classes
     Ensuring
   Annotations
     @deprecated
   Deprecated

     (Since version 2.10.0) Use `resultOfEnsuring`instead``

### Inherited from ParsersCommon

### Inherited from MarkupParsers

### Inherited from Scanners

### Inherited from ScannersCommon

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from Parsers to StringAdd

### Inherited by implicit conversion any2stringfmt from Parsers to StringFormat

### Inherited by implicit conversion any2ArrowAssoc from Parsers to ArrowAssoc[Parsers]

### Inherited by implicit conversion any2Ensuring from Parsers to Ensuring[Parsers]

### Ungrouped