grammar/src/enum.grm - third_party/github/JetBrains/kotlin - Git at Google

 /**
 ### Enum classes

 See [Enum classes](enum-classes.html)
 */

 enumClassBody
   : "{" (enumEntry | memberDeclaration)* "}"
   ;

 enumEntry
   : modifiers SimpleName (":" initializer{","})? classBody?
   ;
	/**
	### Enum classes

	See [Enum classes](enum-classes.html)
	*/

	enumClassBody
	: "{" (enumEntry \| memberDeclaration)* "}"
	;

	enumEntry
	: modifiers SimpleName (":" initializer{","})? classBody?
	;