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 typechecker
  Definition Classes
    nsc
-  trait Macros extends MacroRuntimes with Traces with Helpers

  Code to deal with macros, namely with: * Compilation of macro definitions * Expansion of macro applications

  Code to deal with macros, namely with: * Compilation of macro definitions * Expansion of macro applications

  Say we have in a class C:

  def foo[T](xs: List[T]): T = macro fooBar

  Then fooBar needs to point to a static method of the following form:

  def fooBar[T: c.WeakTypeTag] // type tag annotation is optional (c: scala.reflect.macros.blackbox.Context) (xs: c.Expr[List[T]]) : c.Expr[T] = { ... }

  Then, if foo is called in qual.foo[Int](elems), where qual: D, the macro application is expanded to a reflective invocation of fooBar with parameters:

  (simpleMacroContext{ type PrefixType = D; val prefix = qual }) (Expr(elems)) (TypeTag(Int))

  Definition Classes
    typechecker
- DefMacroExpander
- Delayed
- Failure
- Fallback
- JavaReflectionResolvers
- MacroArgs
- MacroExpander
- MacroImplBinding
- MacroRuntimeResolver
- MacroStatus
- Skipped
- Success

c

scala.tools.nsc.typechecker.Macros

# MacroArgs 

###

#### case class MacroArgs(c: Analyzer.MacroContext, others: List[Any]) extends Product with Serializable

Calculate the arguments to pass to a macro implementation when expanding the provided tree.

Source
  Macros.scala

Linear Supertypes
Serializable, java.io.Serializable, Product, Equals, AnyRef, Any
Type Hierarchy
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Inherited

1. MacroArgs
2. Serializable
3. Serializable
4. Product
5. Equals
6. AnyRef
7. Any

Implicitly

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

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Visibility

1. Public
2. All

### Instance Constructors

1.  new MacroArgs(c: Analyzer.MacroContext, others: List[Any])

### 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 Analyzer.MacroArgs to any2stringadd[Analyzer.MacroArgs] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (Analyzer.MacroArgs, B)
   Implicit
     This member is added by an implicit conversion from Analyzer.MacroArgs to ArrowAssoc[Analyzer.MacroArgs] 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.  val c: Analyzer.MacroContext
8.  def clone(): AnyRef
   Attributes
     protected[java.lang]
   Definition Classes
     AnyRef
   Annotations
     @throws( ... )
9.  def ensuring(cond: (Analyzer.MacroArgs) ⇒ Boolean, msg: ⇒ Any): Analyzer.MacroArgs
   Implicit
     This member is added by an implicit conversion from Analyzer.MacroArgs to Ensuring[Analyzer.MacroArgs] performed by method Ensuring in scala.Predef.
   Definition Classes
     Ensuring
10.  def ensuring(cond: (Analyzer.MacroArgs) ⇒ Boolean): Analyzer.MacroArgs
    Implicit
      This member is added by an implicit conversion from Analyzer.MacroArgs to Ensuring[Analyzer.MacroArgs] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
11.  def ensuring(cond: Boolean, msg: ⇒ Any): Analyzer.MacroArgs
    Implicit
      This member is added by an implicit conversion from Analyzer.MacroArgs to Ensuring[Analyzer.MacroArgs] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
12.  def ensuring(cond: Boolean): Analyzer.MacroArgs
    Implicit
      This member is added by an implicit conversion from Analyzer.MacroArgs to Ensuring[Analyzer.MacroArgs] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
13.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
14.  def finalize(): Unit
    Attributes
      protected[java.lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
15.  def formatted(fmtstr: String): String
    Implicit
      This member is added by an implicit conversion from Analyzer.MacroArgs to StringFormat[Analyzer.MacroArgs] performed by method StringFormat in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()
16.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
17.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
18.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
19.  final def notify(): Unit
    Definition Classes
      AnyRef
20.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
21.  val others: List[Any]
22.  final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
      AnyRef
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
      @throws( ... )
26.  def →[B](y: B): (Analyzer.MacroArgs, B)
    Implicit
      This member is added by an implicit conversion from Analyzer.MacroArgs to ArrowAssoc[Analyzer.MacroArgs] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Inherited from Serializable

### Inherited from java.io.Serializable

### Inherited from Product

### Inherited from Equals

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from Analyzer.MacroArgs to any2stringadd[Analyzer.MacroArgs]

### Inherited by implicit conversion StringFormat from Analyzer.MacroArgs to StringFormat[Analyzer.MacroArgs]

### Inherited by implicit conversion Ensuring from Analyzer.MacroArgs to Ensuring[Analyzer.MacroArgs]

### Inherited by implicit conversion ArrowAssoc from Analyzer.MacroArgs to ArrowAssoc[Analyzer.MacroArgs]

### Ungrouped