[GROOVY-5096] @Immutable should have an extensible way to be informed of classes that are "deemed" Immutable

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0-beta-3, 1.8.7
• Assignee: Paul King
• Reporter: Paul King
• Created: 20/Oct/11 05:56
• Updated: 07/Apr/15 19:07
• Resolved: 22/Feb/12 06:02

Description

The @Immutable annotation has a list of known "effectively immutable" classes. There should be some way to provide an extensible list of class names or "vouch" for a particular field's immutability.

Possible ways to implement might look like the examples below:

@Immutable class Person {
  String name
  @KnownImmutable MyUuid id
}

@KnownImmutables([MyDate, MyUuid])
@Immutable class Person {
  String name
  MyDate dob
  MuUuid id
}