(firstLevelSuperExtractor: StringAdd).self
(firstLevelSuperExtractor: StringFormat).self
(firstLevelSuperExtractor: ArrowAssoc[FirstLevelSuperExtractor]).x
(Since version 2.10.0) Use leftOfArrow
instead
(firstLevelSuperExtractor: Ensuring[FirstLevelSuperExtractor]).x
(Since version 2.10.0) Use resultOfEnsuring
instead
Extracts first-level supers from ANTLR4 ParseTree