# Package org.apache.groovy.runtime

- Class Summary
  Class | Description
  --- | ---
  Comprehensions | Runtime bind/map dispatcher for monadic comprehensions — the emit target of the `DO` macro.
  MonadicCarrierRegistry | The standard carrier allow-list for monadic comprehensions: stdlib and Groovy-core carriers whose bind/map method names diverge from the structural `flatMap`/`map` convention.
  MonadicCarrierRegistry.Entry | One `Class`-keyed allow-list row.
  MonadicCarrierRegistry.NamedEntry | One name-keyed allow-list row, for carriers Groovy must not depend on.
  ObjectUtil | Binary-compatibility facade for class files compiled by Groovy 4.0.5+ (GROOVY-12257).