Scala Compiler2.13.18 < 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 reflect
  Definition Classes
    scala
-  package quasiquotes
  Definition Classes
    reflect
- Holes
- Parsers
- Placeholders
- Quasiquotes
- Rank
- Reifiers

t

scala.reflect.quasiquotes

# Placeholders

###

#### trait Placeholders extends AnyRef

Emulates hole support (see Holes.scala) in the quasiquote parser (see Parsers.scala). A principled solution to splicing into Scala syntax would be a parser that natively supports holes. Unfortunately, that's outside of our reach in Scala 2.11, so we have to emulate. This trait stores knowledge of how to represent the holes as something understandable by the parser and how to recover holes from the results of parsing the produced representation.

Self Type
  Quasiquotes
Source
  Placeholders.scala

Linear Supertypes
AnyRef, Any
Known Subclasses
Quasiquotes
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. Placeholders
2. AnyRef
3. Any

Implicitly

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

1. Hide All
2. Show All

Visibility

1. Public
2. Protected

### Type Members

1.  trait HolePlaceholder extends AnyRef

### 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 Placeholders toany2stringadd[Placeholders] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (Placeholders, B)
   Implicit
     This member is added by an implicit conversion from Placeholders toArrowAssoc[Placeholders] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
7.  def clone(): AnyRef
   Attributes
     protected[lang]
   Definition Classes
     AnyRef
   Annotations
     @throws(classOf[java.lang.CloneNotSupportedException]) @native()
8.  lazy val code: String
9.  def ensuring(cond: (Placeholders) => Boolean, msg: => Any): Placeholders
   Implicit
     This member is added by an implicit conversion from Placeholders toEnsuring[Placeholders] performed by method Ensuring in scala.Predef.
   Definition Classes
     Ensuring
10.  def ensuring(cond: (Placeholders) => Boolean): Placeholders
    Implicit
      This member is added by an implicit conversion from Placeholders toEnsuring[Placeholders] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
11.  def ensuring(cond: Boolean, msg: => Any): Placeholders
    Implicit
      This member is added by an implicit conversion from Placeholders toEnsuring[Placeholders] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
12.  def ensuring(cond: Boolean): Placeholders
    Implicit
      This member is added by an implicit conversion from Placeholders toEnsuring[Placeholders] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
13.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
14.  def equals(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef → Any
15.  def finalize(): Unit
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
16.  final def getClass(): Class[_ <: AnyRef]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
17.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
18.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
19.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
20.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
21.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
22.  lazy val posMap: LinkedHashMap[Position, (Int, Int)]
23.  final def synchronized[T0](arg0: => T0): T0
    Definition Classes
      AnyRef
24.  def toString(): String
    Definition Classes
      AnyRef → Any
25.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
26.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
27.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()
28.  object AnnotPlaceholder extends Quasiquotes.HolePlaceholder
29.  object CasePlaceholder
30.  object EarlyDefPlaceholder
31.  object ForEnumPlaceholder
32.  object FunctionTypePlaceholder
33.  object ModsPlaceholder extends Quasiquotes.HolePlaceholder
34.  object PackageStatPlaceholder
35.  object ParamPlaceholder extends Quasiquotes.HolePlaceholder
36.  object Placeholder extends Quasiquotes.HolePlaceholder
37.  object RefineStatPlaceholder
38.  object SymbolPlaceholder
39.  object TuplePlaceholder
40.  object TupleTypePlaceholder
41.  object holeMap

### Deprecated Value Members

1.  def formatted(fmtstr: String): String
   Implicit
     This member is added by an implicit conversion from Placeholders toStringFormat[Placeholders] performed by method StringFormat in scala.Predef.
   Definition Classes
     StringFormat
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.12.16) Use `formatString.format(value)` instead of `value.formatted(formatString)`, or use the `f""` string interpolator. In Java 15 and later, `formatted` resolves to the new method in String which has reversed parameters.

2.  def →[B](y: B): (Placeholders, B)
   Implicit
     This member is added by an implicit conversion from Placeholders toArrowAssoc[Placeholders] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.13.0) Use `->` instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd fromPlaceholders to any2stringadd[Placeholders]

### Inherited by implicit conversion StringFormat fromPlaceholders to StringFormat[Placeholders]

### Inherited by implicit conversion Ensuring fromPlaceholders to Ensuring[Placeholders]

### Inherited by implicit conversion ArrowAssoc fromPlaceholders to ArrowAssoc[Placeholders]

### Ungrouped