// [The "BSD 3-clause license"]
// Copyright (c) 2005-2007 Terence Parr
// Copyright (c) 2012-2015 Terence Parr
// Copyright (c) 2012-2015 Sam Harwell
// Copyright (c) 2014-2015 Gerald Rosenberg
// Copyright (c) 2023 Google LLC
// All rights reserved.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:

//  1. Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
//  2. Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//  3. Neither the name of the copyright holder nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Generated from ANTLRv4Parser.g4 by ANTLR 4.11.2

#ifndef ANTLR4_GEN_ANTLRV_PARSERLISTENER_H
#define ANTLR4_GEN_ANTLRV_PARSERLISTENER_H

#include "ANTLRv4Parser.h"
#include "antlr4-runtime.h"

namespace antlr4_grammar {

/**
 * This interface defines an abstract listener for a parse tree produced by
 * ANTLRv4Parser.
 */
class ANTLRv4ParserListener : public antlr4::tree::ParseTreeListener {
 public:
  virtual void enterGrammarSpec(ANTLRv4Parser::GrammarSpecContext *ctx) = 0;
  virtual void exitGrammarSpec(ANTLRv4Parser::GrammarSpecContext *ctx) = 0;

  virtual void enterGrammarDecl(ANTLRv4Parser::GrammarDeclContext *ctx) = 0;
  virtual void exitGrammarDecl(ANTLRv4Parser::GrammarDeclContext *ctx) = 0;

  virtual void enterGrammarType(ANTLRv4Parser::GrammarTypeContext *ctx) = 0;
  virtual void exitGrammarType(ANTLRv4Parser::GrammarTypeContext *ctx) = 0;

  virtual void enterPrequelConstruct(
      ANTLRv4Parser::PrequelConstructContext *ctx) = 0;
  virtual void exitPrequelConstruct(
      ANTLRv4Parser::PrequelConstructContext *ctx) = 0;

  virtual void enterOptionsSpec(ANTLRv4Parser::OptionsSpecContext *ctx) = 0;
  virtual void exitOptionsSpec(ANTLRv4Parser::OptionsSpecContext *ctx) = 0;

  virtual void enterOption(ANTLRv4Parser::OptionContext *ctx) = 0;
  virtual void exitOption(ANTLRv4Parser::OptionContext *ctx) = 0;

  virtual void enterOptionValue(ANTLRv4Parser::OptionValueContext *ctx) = 0;
  virtual void exitOptionValue(ANTLRv4Parser::OptionValueContext *ctx) = 0;

  virtual void enterDelegateGrammars(
      ANTLRv4Parser::DelegateGrammarsContext *ctx) = 0;
  virtual void exitDelegateGrammars(
      ANTLRv4Parser::DelegateGrammarsContext *ctx) = 0;

  virtual void enterDelegateGrammar(
      ANTLRv4Parser::DelegateGrammarContext *ctx) = 0;
  virtual void exitDelegateGrammar(
      ANTLRv4Parser::DelegateGrammarContext *ctx) = 0;

  virtual void enterTokensSpec(ANTLRv4Parser::TokensSpecContext *ctx) = 0;
  virtual void exitTokensSpec(ANTLRv4Parser::TokensSpecContext *ctx) = 0;

  virtual void enterChannelsSpec(ANTLRv4Parser::ChannelsSpecContext *ctx) = 0;
  virtual void exitChannelsSpec(ANTLRv4Parser::ChannelsSpecContext *ctx) = 0;

  virtual void enterIdList(ANTLRv4Parser::IdListContext *ctx) = 0;
  virtual void exitIdList(ANTLRv4Parser::IdListContext *ctx) = 0;

  virtual void enterAction_(ANTLRv4Parser::Action_Context *ctx) = 0;
  virtual void exitAction_(ANTLRv4Parser::Action_Context *ctx) = 0;

  virtual void enterActionScopeName(
      ANTLRv4Parser::ActionScopeNameContext *ctx) = 0;
  virtual void exitActionScopeName(
      ANTLRv4Parser::ActionScopeNameContext *ctx) = 0;

  virtual void enterActionBlock(ANTLRv4Parser::ActionBlockContext *ctx) = 0;
  virtual void exitActionBlock(ANTLRv4Parser::ActionBlockContext *ctx) = 0;

  virtual void enterArgActionBlock(
      ANTLRv4Parser::ArgActionBlockContext *ctx) = 0;
  virtual void exitArgActionBlock(
      ANTLRv4Parser::ArgActionBlockContext *ctx) = 0;

  virtual void enterModeSpec(ANTLRv4Parser::ModeSpecContext *ctx) = 0;
  virtual void exitModeSpec(ANTLRv4Parser::ModeSpecContext *ctx) = 0;

  virtual void enterRules(ANTLRv4Parser::RulesContext *ctx) = 0;
  virtual void exitRules(ANTLRv4Parser::RulesContext *ctx) = 0;

  virtual void enterRuleSpec(ANTLRv4Parser::RuleSpecContext *ctx) = 0;
  virtual void exitRuleSpec(ANTLRv4Parser::RuleSpecContext *ctx) = 0;

  virtual void enterParserRuleSpec(
      ANTLRv4Parser::ParserRuleSpecContext *ctx) = 0;
  virtual void exitParserRuleSpec(
      ANTLRv4Parser::ParserRuleSpecContext *ctx) = 0;

  virtual void enterExceptionGroup(
      ANTLRv4Parser::ExceptionGroupContext *ctx) = 0;
  virtual void exitExceptionGroup(
      ANTLRv4Parser::ExceptionGroupContext *ctx) = 0;

  virtual void enterExceptionHandler(
      ANTLRv4Parser::ExceptionHandlerContext *ctx) = 0;
  virtual void exitExceptionHandler(
      ANTLRv4Parser::ExceptionHandlerContext *ctx) = 0;

  virtual void enterFinallyClause(ANTLRv4Parser::FinallyClauseContext *ctx) = 0;
  virtual void exitFinallyClause(ANTLRv4Parser::FinallyClauseContext *ctx) = 0;

  virtual void enterRulePrequel(ANTLRv4Parser::RulePrequelContext *ctx) = 0;
  virtual void exitRulePrequel(ANTLRv4Parser::RulePrequelContext *ctx) = 0;

  virtual void enterRuleReturns(ANTLRv4Parser::RuleReturnsContext *ctx) = 0;
  virtual void exitRuleReturns(ANTLRv4Parser::RuleReturnsContext *ctx) = 0;

  virtual void enterThrowsSpec(ANTLRv4Parser::ThrowsSpecContext *ctx) = 0;
  virtual void exitThrowsSpec(ANTLRv4Parser::ThrowsSpecContext *ctx) = 0;

  virtual void enterLocalsSpec(ANTLRv4Parser::LocalsSpecContext *ctx) = 0;
  virtual void exitLocalsSpec(ANTLRv4Parser::LocalsSpecContext *ctx) = 0;

  virtual void enterRuleAction(ANTLRv4Parser::RuleActionContext *ctx) = 0;
  virtual void exitRuleAction(ANTLRv4Parser::RuleActionContext *ctx) = 0;

  virtual void enterRuleModifiers(ANTLRv4Parser::RuleModifiersContext *ctx) = 0;
  virtual void exitRuleModifiers(ANTLRv4Parser::RuleModifiersContext *ctx) = 0;

  virtual void enterRuleModifier(ANTLRv4Parser::RuleModifierContext *ctx) = 0;
  virtual void exitRuleModifier(ANTLRv4Parser::RuleModifierContext *ctx) = 0;

  virtual void enterRuleBlock(ANTLRv4Parser::RuleBlockContext *ctx) = 0;
  virtual void exitRuleBlock(ANTLRv4Parser::RuleBlockContext *ctx) = 0;

  virtual void enterRuleAltList(ANTLRv4Parser::RuleAltListContext *ctx) = 0;
  virtual void exitRuleAltList(ANTLRv4Parser::RuleAltListContext *ctx) = 0;

  virtual void enterLabeledAlt(ANTLRv4Parser::LabeledAltContext *ctx) = 0;
  virtual void exitLabeledAlt(ANTLRv4Parser::LabeledAltContext *ctx) = 0;

  virtual void enterLexerRuleSpec(ANTLRv4Parser::LexerRuleSpecContext *ctx) = 0;
  virtual void exitLexerRuleSpec(ANTLRv4Parser::LexerRuleSpecContext *ctx) = 0;

  virtual void enterLexerRuleBlock(
      ANTLRv4Parser::LexerRuleBlockContext *ctx) = 0;
  virtual void exitLexerRuleBlock(
      ANTLRv4Parser::LexerRuleBlockContext *ctx) = 0;

  virtual void enterLexerAltList(ANTLRv4Parser::LexerAltListContext *ctx) = 0;
  virtual void exitLexerAltList(ANTLRv4Parser::LexerAltListContext *ctx) = 0;

  virtual void enterLexerAlt(ANTLRv4Parser::LexerAltContext *ctx) = 0;
  virtual void exitLexerAlt(ANTLRv4Parser::LexerAltContext *ctx) = 0;

  virtual void enterLexerElements(ANTLRv4Parser::LexerElementsContext *ctx) = 0;
  virtual void exitLexerElements(ANTLRv4Parser::LexerElementsContext *ctx) = 0;

  virtual void enterLexerElement(ANTLRv4Parser::LexerElementContext *ctx) = 0;
  virtual void exitLexerElement(ANTLRv4Parser::LexerElementContext *ctx) = 0;

  virtual void enterLabeledLexerElement(
      ANTLRv4Parser::LabeledLexerElementContext *ctx) = 0;
  virtual void exitLabeledLexerElement(
      ANTLRv4Parser::LabeledLexerElementContext *ctx) = 0;

  virtual void enterLexerBlock(ANTLRv4Parser::LexerBlockContext *ctx) = 0;
  virtual void exitLexerBlock(ANTLRv4Parser::LexerBlockContext *ctx) = 0;

  virtual void enterLexerCommands(ANTLRv4Parser::LexerCommandsContext *ctx) = 0;
  virtual void exitLexerCommands(ANTLRv4Parser::LexerCommandsContext *ctx) = 0;

  virtual void enterLexerCommand(ANTLRv4Parser::LexerCommandContext *ctx) = 0;
  virtual void exitLexerCommand(ANTLRv4Parser::LexerCommandContext *ctx) = 0;

  virtual void enterLexerCommandName(
      ANTLRv4Parser::LexerCommandNameContext *ctx) = 0;
  virtual void exitLexerCommandName(
      ANTLRv4Parser::LexerCommandNameContext *ctx) = 0;

  virtual void enterLexerCommandExpr(
      ANTLRv4Parser::LexerCommandExprContext *ctx) = 0;
  virtual void exitLexerCommandExpr(
      ANTLRv4Parser::LexerCommandExprContext *ctx) = 0;

  virtual void enterAltList(ANTLRv4Parser::AltListContext *ctx) = 0;
  virtual void exitAltList(ANTLRv4Parser::AltListContext *ctx) = 0;

  virtual void enterAlternative(ANTLRv4Parser::AlternativeContext *ctx) = 0;
  virtual void exitAlternative(ANTLRv4Parser::AlternativeContext *ctx) = 0;

  virtual void enterElement(ANTLRv4Parser::ElementContext *ctx) = 0;
  virtual void exitElement(ANTLRv4Parser::ElementContext *ctx) = 0;

  virtual void enterLabeledElement(
      ANTLRv4Parser::LabeledElementContext *ctx) = 0;
  virtual void exitLabeledElement(
      ANTLRv4Parser::LabeledElementContext *ctx) = 0;

  virtual void enterEbnf(ANTLRv4Parser::EbnfContext *ctx) = 0;
  virtual void exitEbnf(ANTLRv4Parser::EbnfContext *ctx) = 0;

  virtual void enterBlockSuffix(ANTLRv4Parser::BlockSuffixContext *ctx) = 0;
  virtual void exitBlockSuffix(ANTLRv4Parser::BlockSuffixContext *ctx) = 0;

  virtual void enterEbnfSuffix(ANTLRv4Parser::EbnfSuffixContext *ctx) = 0;
  virtual void exitEbnfSuffix(ANTLRv4Parser::EbnfSuffixContext *ctx) = 0;

  virtual void enterLexerAtom(ANTLRv4Parser::LexerAtomContext *ctx) = 0;
  virtual void exitLexerAtom(ANTLRv4Parser::LexerAtomContext *ctx) = 0;

  virtual void enterAtom(ANTLRv4Parser::AtomContext *ctx) = 0;
  virtual void exitAtom(ANTLRv4Parser::AtomContext *ctx) = 0;

  virtual void enterNotSet(ANTLRv4Parser::NotSetContext *ctx) = 0;
  virtual void exitNotSet(ANTLRv4Parser::NotSetContext *ctx) = 0;

  virtual void enterBlockSet(ANTLRv4Parser::BlockSetContext *ctx) = 0;
  virtual void exitBlockSet(ANTLRv4Parser::BlockSetContext *ctx) = 0;

  virtual void enterSetElement(ANTLRv4Parser::SetElementContext *ctx) = 0;
  virtual void exitSetElement(ANTLRv4Parser::SetElementContext *ctx) = 0;

  virtual void enterBlock(ANTLRv4Parser::BlockContext *ctx) = 0;
  virtual void exitBlock(ANTLRv4Parser::BlockContext *ctx) = 0;

  virtual void enterRuleref(ANTLRv4Parser::RulerefContext *ctx) = 0;
  virtual void exitRuleref(ANTLRv4Parser::RulerefContext *ctx) = 0;

  virtual void enterCharacterRange(
      ANTLRv4Parser::CharacterRangeContext *ctx) = 0;
  virtual void exitCharacterRange(
      ANTLRv4Parser::CharacterRangeContext *ctx) = 0;

  virtual void enterTerminal(ANTLRv4Parser::TerminalContext *ctx) = 0;
  virtual void exitTerminal(ANTLRv4Parser::TerminalContext *ctx) = 0;

  virtual void enterElementOptions(
      ANTLRv4Parser::ElementOptionsContext *ctx) = 0;
  virtual void exitElementOptions(
      ANTLRv4Parser::ElementOptionsContext *ctx) = 0;

  virtual void enterElementOption(ANTLRv4Parser::ElementOptionContext *ctx) = 0;
  virtual void exitElementOption(ANTLRv4Parser::ElementOptionContext *ctx) = 0;

  virtual void enterIdentifier(ANTLRv4Parser::IdentifierContext *ctx) = 0;
  virtual void exitIdentifier(ANTLRv4Parser::IdentifierContext *ctx) = 0;
};

}  // namespace antlr4_grammar

#endif  // ANTLR4_GEN_ANTLRV_PARSERLISTENER_H