# Package org.apache.groovy.parser.antlr4.internal.atnmanager

package org.apache.groovy.parser.antlr4.internal.atnmanager
Manages Augmented Transition Network (ATN) state and caching for ANTLR4 parser optimization. Handles parser state serialization and recovery.

- Related Packages
  Package
  Description
  org.apache.groovy.parser.antlr4.internal
  Internal utilities for the ANTLR4 (Parrot) parser: ATN management, friendly error strategies (`DescriptiveErrorStrategy` fail-fast, `RecoveringDescriptiveErrorStrategy` multi-error), and related diagnostics.
- Classes
  Class
  Description
  AtnManager
  Manage ATN to avoid memory leak.
  LexerAtnManager
  Manage ATN for lexer to avoid memory leak
  ParserAtnManager
  Manage ATN for parser to avoid memory leak