parseUnit(void)
  skipErrorTokens(void)
  listener: beginCompilationUnit(void)
  syntheticPreviousToken(void)
  parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
    parseMetadataStar()
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl()
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(, null, null, , Instance of 'VoidType', null, f, false)
        listener: beginTopLevelMethod(, null, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(f, topLevelFunctionDeclaration)
        parseMethodTypeVar(f)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(f, f, false, MemberKind.TopLevelMethod)
          parseFormalParameters(f, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(dynamic)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(dynamic, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(dynamic, typeReference)
                listener: handleNoTypeArguments(e)
                listener: handleType(dynamic, null)
                ensureIdentifier(dynamic, formalParameterDeclaration)
                  listener: handleIdentifier(e, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, e, null, null, FormalParameterKind.requiredPositional, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, ()
          parseStatement({)
            parseStatementX({)
              parseExpressionStatementOrDeclaration({, false)
                parseExpressionStatementOrDeclarationAfterModifiers({, {, null, null, null, false)
                  looksLikeLocalFunction(()
                  parseExpressionStatement({)
                    parseExpression({)
                      parsePrecedenceExpression({, 1, true)
                        parseUnaryExpression({, true)
                          parsePrimary({, expression)
                            parseParenthesizedExpressionFunctionLiteralOrRecordLiteral({)
                              parseParenthesizedExpressionOrRecordLiteral({)
                                listener: beginParenthesizedExpressionOrRecordLiteral(()
                                parseExpression(()
                                  parsePrecedenceExpression((, 1, true)
                                    parseUnaryExpression((, true)
                                      parsePrimary((, expression)
                                        parseSendOrFunctionLiteral((, expression)
                                          parseSend((, expression)
                                            isNextIdentifier(()
                                            ensureIdentifier((, expression)
                                              listener: handleIdentifier(e, expression)
                                            listener: handleNoTypeArguments(!)
                                            parseArgumentsOpt(e)
                                              listener: handleNoArguments(!)
                                            listener: handleSend(e, !)
                                    listener: handleNonNullAssertExpression(!)
                                    parsePrimary(., expressionContinuation)
                                      parseSendOrFunctionLiteral(., expressionContinuation)
                                        looksLikeFunctionBody())
                                        parseSend(., expressionContinuation)
                                          isNextIdentifier(.)
                                          ensureIdentifier(., expressionContinuation)
                                            listener: handleIdentifier(f, expressionContinuation)
                                          listener: handleNoTypeArguments(()
                                          parseArgumentsOpt(f)
                                            parseArguments(f)
                                              parseArgumentsRest(()
                                                listener: beginArguments(()
                                                listener: endArguments(0, (, ))
                                          listener: handleSend(f, ))
                                    listener: handleEndingBinaryExpression(.)
                                ensureCloseParen(), ()
                                listener: endParenthesizedExpression(()
                        listener: handleNonNullAssertExpression(!)
                        listener: beginTypeArguments(<)
                        listener: handleIdentifier(int, typeReference)
                        listener: handleNoTypeArguments(>)
                        listener: handleType(int, null)
                        listener: endTypeArguments(1, <, >)
                        parseArgumentOrIndexStar(>, Instance of 'SimpleTypeArgument1', false)
                          parseArguments(>)
                            parseArgumentsRest(()
                              listener: beginArguments(()
                              listener: endArguments(0, (, ))
                          listener: handleSend((, ))
                    ensureSemicolon())
                    listener: handleExpressionStatement(;)
          notEofOrValue(}, ()
          parseStatement(;)
            parseStatementX(;)
              parseExpressionStatementOrDeclaration(;, false)
                parseExpressionStatementOrDeclarationAfterModifiers(;, ;, null, null, null, false)
                  looksLikeLocalFunction(()
                  parseExpressionStatement(;)
                    parseExpression(;)
                      parsePrecedenceExpression(;, 1, true)
                        parseUnaryExpression(;, true)
                          parsePrimary(;, expression)
                            parseParenthesizedExpressionFunctionLiteralOrRecordLiteral(;)
                              parseParenthesizedExpressionOrRecordLiteral(;)
                                listener: beginParenthesizedExpressionOrRecordLiteral(()
                                parseExpression(()
                                  parsePrecedenceExpression((, 1, true)
                                    parseUnaryExpression((, true)
                                      parsePrimary((, expression)
                                        parseSendOrFunctionLiteral((, expression)
                                          parseSend((, expression)
                                            isNextIdentifier(()
                                            ensureIdentifier((, expression)
                                              listener: handleIdentifier(e, expression)
                                            listener: handleNoTypeArguments(!)
                                            parseArgumentsOpt(e)
                                              listener: handleNoArguments(!)
                                            listener: handleSend(e, !)
                                    listener: handleNonNullAssertExpression(!)
                                    parsePrimary(., expressionContinuation)
                                      parseSendOrFunctionLiteral(., expressionContinuation)
                                        looksLikeFunctionBody(!)
                                        parseSend(., expressionContinuation)
                                          isNextIdentifier(.)
                                          ensureIdentifier(., expressionContinuation)
                                            listener: handleIdentifier(f, expressionContinuation)
                                          listener: handleNoTypeArguments(()
                                          parseArgumentsOpt(f)
                                            parseArguments(f)
                                              parseArgumentsRest(()
                                                listener: beginArguments(()
                                                listener: endArguments(0, (, ))
                                          listener: handleSend(f, !)
                                    listener: handleEndingBinaryExpression(.)
                                    listener: handleNonNullAssertExpression(!)
                                ensureCloseParen(!, ()
                                listener: endParenthesizedExpression(()
                        listener: beginTypeArguments(<)
                        listener: handleIdentifier(int, typeReference)
                        listener: handleNoTypeArguments(>)
                        listener: handleType(int, null)
                        listener: endTypeArguments(1, <, >)
                        parseArgumentOrIndexStar(>, Instance of 'SimpleTypeArgument1', false)
                          parseArguments(>)
                            parseArgumentsRest(()
                              listener: beginArguments(()
                              listener: endArguments(0, (, ))
                          listener: handleSend((, ))
                    ensureSemicolon())
                    listener: handleExpressionStatement(;)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(2, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration()
  reportAllErrorTokens(void)
  listener: endCompilationUnit(1, )