enum A {
 CONST
 String field
}
-----
Groovy script
  Enumeration definition
    Modifiers
      <empty list>
    PsiElement(enum)('enum')
    PsiWhiteSpace(' ')
    PsiElement(identifier)('A')
    Implements clause
      <empty list>
    PsiWhiteSpace(' ')
    Type definition body
      PsiElement({)('{')
      PsiWhiteSpace('\n ')
      Enumeration constants
        Enumeration constant
          PsiElement(identifier)('CONST')
      PsiElement(new line)('\n ')
      Variable definitions
        Modifiers
          <empty list>
        Type element
          Reference element
            PsiElement(identifier)('String')
        PsiWhiteSpace(' ')
        Field
          PsiElement(identifier)('field')
      PsiElement(new line)('\n')
      PsiElement(})('}')