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Platform and version requirements: JVM (1.0), JS (1.0), Native (1.3)
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When applied to annotation class X specifies that X defines a DSL language

The general rule:

  • an implicit receiver may belong to a DSL @X if marked with a corresponding DSL marker annotation
  • two implicit receivers of the same DSL are not accessible in the same scope
  • the closest one wins
  • other available receivers are resolved as usual, but if the resulting resolved call binds to such a receiver, it's a compilation error

Marking rules: an implicit receiver is considered marked with @Ann if

  • its type is marked, or
  • its type's classifier is marked
  • or any of its superclasses/superinterfaces

© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-dsl-marker/-init-.html