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 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

case class Delayed(delayed: Global.Tree) extends Analyzer.MacroStatus with Product with Serializable

Source
Macros.scala
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Delayed
  2. Serializable
  3. Product
  4. Equals
  5. MacroStatus
  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. Protected

Instance Constructors

  1. new Delayed(delayed: Global.Tree)

Value Members

  1. val delayed: Global.Tree
  2. def productElementNames: Iterator[String]
    Definition Classes
    Product
  3. val result: Global.Tree
    Definition Classes
    MacroStatus