# Package org.apache.groovy.parser.antlr4

- Interface Summary
  Interface | Description
  --- | ---
  SyntaxErrorReportable | A SyntaxErrorReportable is a recognizer that can report syntax error

- Class Summary
  Class | Description
  --- | ---
  AbstractLexer | Because antlr4 does not support generating lexer with specified interface, we have to create a super class for it and implement the interface.
  AbstractParser | Because antlr4 does not support generating parser with specified interface, we have to create a super class for it and implement the interface.
  Antlr4ParserPlugin | A parser plugin for the new parser.
  Antlr4PluginFactory | A parser plugin factory for the new parser.
  AstBuilder | Builds the AST from the parse tree generated by Antlr4.
  GroovyLangLexer | The lexer for Groovy programming language, which is based on the lexer generated by Antlr4
  GroovyLangParser | The parser for Groovy programming language, which is based on the parser generated by Antlr4
  GroovydocManager | A utilities for managing groovydoc, e.g. 1) extracting groovydoc from groovy AST; 2) TODO extracting tags from groovydoc; 3) attach groovydoc to AST node as metadata
  PositionInfo |
  SemanticPredicates | Some semantic predicates for altering the behaviour of the lexer and parser
  TryWithResourcesASTTransformation | Transform try-with-resources to try-catch-finally Reference JLS "14.20.3. try-with-resources"(https://docs.oracle.com/javase/specs/jls/se7/html/jls-14.html)

- Error Summary
  Error | Description
  --- | ---
  GroovySyntaxError | Represents a syntax error of groovy program