Dotty Documentation

0.17.0-bin-SNAPSHOT

threadUnsafe annotation

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A new annotation @threadUnsafe can be used on a field which defines a lazy val. When this annotation is used, the initialization of the lazy val will use a faster mechanism which is not thread-safe.

Example

import scala.annotation.threadUnsafe

class Hello {
  @threadUnsafe lazy val x: Int = 1
}