Kotlin 注解

• 注解的定义
• Kotlin 元注解
  • @Target
  • @Retention
  • @Repeatable
  • @MustBeDocumented
• use-site target
  • @file the class containing top-level functions and properties declared in the file
  • @property: annotations with this target are not visible to Java
  • @field: the field generated for the property
  • @get: property getter
  • @set: property setter
  • @receiver: receiver parameter of an extension function or property
  • @param: constructor parameter
  • @setparam: property setter parameter
  • @delegate: the field storing the delegate instance for a delegated property