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)
              listener: endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, final)
          parseStatement({)
            parseStatementX({)
              parseExpressionStatementOrDeclarationAfterModifiers(final, {, null, final, null, null)
                looksLikeLocalFunction(x)
                listener: beginMetadataStar(final)
                listener: endMetadataStar(0)
                listener: handleNoType(final)
                listener: beginVariablesDeclaration(x, null, final)
                parseVariablesDeclarationRest(final, true)
                  parseOptionallyInitializedIdentifier(final)
                    ensureIdentifier(final, localVariableDeclaration)
                      listener: handleIdentifier(x, localVariableDeclaration)
                    listener: beginInitializedIdentifier(x)
                    parseVariableInitializerOpt(x)
                      listener: beginVariableInitializer(=)
                      parseExpression(=)
                        parsePrecedenceExpression(=, 1, true)
                          parseUnaryExpression(=, true)
                            parsePrimary(=, expression)
                              parseLiteralListSetMapOrFunction(=, null)
                                listener: beginTypeArguments(<)
                                parseRecordType((, <, false)
                                  listener: beginRecordType(()
                                  parseRecordTypeField((, identifierIsOptional: true)
                                    listener: beginRecordTypeEntry()
                                    parseMetadataStar(()
                                      listener: beginMetadataStar(int)
                                      listener: endMetadataStar(0)
                                    listener: handleIdentifier(int, typeReference)
                                    listener: handleNoTypeArguments(,)
                                    listener: handleType(int, null)
                                    listener: handleNoName(,)
                                    listener: endRecordTypeEntry()
                                  parseRecordTypeField(,, identifierIsOptional: true)
                                    listener: beginRecordTypeEntry()
                                    parseMetadataStar(,)
                                      listener: beginMetadataStar(String)
                                      listener: endMetadataStar(0)
                                    listener: handleIdentifier(String, typeReference)
                                    listener: handleNoTypeArguments())
                                    listener: handleType(String, null)
                                    listener: handleNoName())
                                    listener: endRecordTypeEntry()
                                  listener: endRecordType((, null, 2, false)
                                listener: endTypeArguments(1, <, >)
                                parseLiteralListSuffix(>, null)
                                  rewriteSquareBrackets(>)
                                    link([, ])
                                    rewriter()
                                  listener: handleLiteralList(0, [, null, ])
                      listener: endVariableInitializer(=)
                    listener: endInitializedIdentifier(x)
                  ensureSemicolon(])
                  listener: endVariablesDeclaration(1, ;)
          notEofOrValue(}, List)
          parseStatement(;)
            parseStatementX(;)
              parseExpressionStatementOrDeclarationAfterModifiers(;, ;, null, null, null, null)
                looksLikeLocalFunction(y)
                listener: beginMetadataStar(List)
                listener: endMetadataStar(0)
                ensureIdentifier(;, typeReference)
                  listener: handleIdentifier(List, typeReference)
                listener: beginTypeArguments(<)
                parseRecordType((, <, false)
                  listener: beginRecordType(()
                  parseRecordTypeField((, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(()
                      listener: beginMetadataStar(int)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(int, typeReference)
                    listener: handleNoTypeArguments(,)
                    listener: handleType(int, null)
                    listener: handleNoName(,)
                    listener: endRecordTypeEntry()
                  parseRecordTypeField(,, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(,)
                      listener: beginMetadataStar(String)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(String, typeReference)
                    listener: handleNoTypeArguments())
                    listener: handleType(String, null)
                    listener: handleNoName())
                    listener: endRecordTypeEntry()
                  listener: endRecordType((, null, 2, false)
                listener: endTypeArguments(1, <, >)
                listener: handleType(List, null)
                listener: beginVariablesDeclaration(y, null, null)
                parseVariablesDeclarationRest(>, true)
                  parseOptionallyInitializedIdentifier(>)
                    ensureIdentifier(>, localVariableDeclaration)
                      listener: handleIdentifier(y, localVariableDeclaration)
                    listener: beginInitializedIdentifier(y)
                    parseVariableInitializerOpt(y)
                      listener: beginVariableInitializer(=)
                      parseExpression(=)
                        parsePrecedenceExpression(=, 1, true)
                          parseUnaryExpression(=, true)
                            parsePrimary(=, expression)
                              listener: handleNoTypeArguments([])
                              parseLiteralListSuffix(=, null)
                                rewriteSquareBrackets(=)
                                  link([, ])
                                  rewriter()
                                listener: handleLiteralList(0, [, null, ])
                      listener: endVariableInitializer(=)
                    listener: endInitializedIdentifier(y)
                  ensureSemicolon(])
                  listener: endVariablesDeclaration(1, ;)
          notEofOrValue(}, Map)
          parseStatement(;)
            parseStatementX(;)
              parseExpressionStatementOrDeclarationAfterModifiers(;, ;, null, null, null, null)
                looksLikeLocalFunction(z)
                listener: beginMetadataStar(Map)
                listener: endMetadataStar(0)
                ensureIdentifier(;, typeReference)
                  listener: handleIdentifier(Map, typeReference)
                listener: beginTypeArguments(<)
                parseRecordType((, <, false)
                  listener: beginRecordType(()
                  parseRecordTypeField((, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(()
                      listener: beginMetadataStar(int)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(int, typeReference)
                    listener: handleNoTypeArguments(,)
                    listener: handleType(int, null)
                    listener: handleNoName(,)
                    listener: endRecordTypeEntry()
                  parseRecordTypeField(,, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(,)
                      listener: beginMetadataStar(String)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(String, typeReference)
                    listener: handleNoTypeArguments())
                    listener: handleType(String, null)
                    listener: handleNoName())
                    listener: endRecordTypeEntry()
                  listener: endRecordType((, null, 2, false)
                parseRecordType((, ,, false)
                  listener: beginRecordType(()
                  parseRecordTypeField((, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(()
                      listener: beginMetadataStar(String)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(String, typeReference)
                    listener: handleNoTypeArguments(,)
                    listener: handleType(String, null)
                    listener: handleNoName(,)
                    listener: endRecordTypeEntry()
                  parseRecordTypeField(,, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(,)
                      listener: beginMetadataStar(int)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(int, typeReference)
                    listener: handleNoTypeArguments())
                    listener: handleType(int, null)
                    listener: handleNoName())
                    listener: endRecordTypeEntry()
                  listener: endRecordType((, null, 2, false)
                listener: endTypeArguments(2, <, >)
                listener: handleType(Map, null)
                listener: beginVariablesDeclaration(z, null, null)
                parseVariablesDeclarationRest(>, true)
                  parseOptionallyInitializedIdentifier(>)
                    ensureIdentifier(>, localVariableDeclaration)
                      listener: handleIdentifier(z, localVariableDeclaration)
                    listener: beginInitializedIdentifier(z)
                    parseVariableInitializerOpt(z)
                      listener: beginVariableInitializer(=)
                      parseExpression(=)
                        parsePrecedenceExpression(=, 1, true)
                          parseUnaryExpression(=, true)
                            parsePrimary(=, expression)
                              listener: handleNoTypeArguments({)
                              parseLiteralSetOrMapSuffix(=, null)
                                listener: handleLiteralSetOrMap(0, {, null, }, false)
                      listener: endVariableInitializer(=)
                    listener: endInitializedIdentifier(z)
                  ensureSemicolon(})
                  listener: endVariablesDeclaration(1, ;)
          notEofOrValue(}, List)
          parseStatement(;)
            parseStatementX(;)
              parseExpressionStatementOrDeclarationAfterModifiers(;, ;, null, null, null, null)
                looksLikeLocalFunction(y2)
                listener: beginMetadataStar(List)
                listener: endMetadataStar(0)
                ensureIdentifier(;, typeReference)
                  listener: handleIdentifier(List, typeReference)
                listener: beginTypeArguments(<)
                listener: beginFunctionType(()
                listener: handleNoTypeVariables(()
                listener: beginFunctionType(()
                listener: handleNoTypeVariables(()
                parseRecordType((, <, true)
                  listener: beginRecordType(()
                  parseRecordTypeField((, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(()
                      listener: beginMetadataStar(int)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(int, typeReference)
                    listener: handleNoTypeArguments(,)
                    listener: handleType(int, null)
                    listener: handleNoName(,)
                    listener: endRecordTypeEntry()
                  parseRecordTypeField(,, identifierIsOptional: true)
                    listener: beginRecordTypeEntry()
                    parseMetadataStar(,)
                      listener: beginMetadataStar(int)
                      listener: endMetadataStar(0)
                    listener: handleIdentifier(int, typeReference)
                    listener: handleNoTypeArguments())
                    listener: handleType(int, null)
                    listener: handleNoName())
                    listener: endRecordTypeEntry()
                  listener: endRecordType((, null, 2, false)
                parseFormalParametersRequiredOpt(Function, MemberKind.GeneralizedFunctionType)
                  parseFormalParametersRest((, MemberKind.GeneralizedFunctionType)
                    listener: beginFormalParameters((, MemberKind.GeneralizedFunctionType)
                    parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
                      parseMetadataStar(()
                        listener: beginMetadataStar(bool)
                        listener: endMetadataStar(0)
                      listener: beginFormalParameter(bool, MemberKind.GeneralizedFunctionType, null, null, null)
                      listener: handleIdentifier(bool, typeReference)
                      listener: handleNoTypeArguments())
                      listener: handleType(bool, null)
                      listener: handleNoName())
                      listener: handleFormalParameterWithoutValue())
                      listener: endFormalParameter(null, null, null, ), null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
                    listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
                listener: endFunctionType(Function, null)
                parseFormalParametersRequiredOpt(Function, MemberKind.GeneralizedFunctionType)
                  parseFormalParametersRest((, MemberKind.GeneralizedFunctionType)
                    listener: beginFormalParameters((, MemberKind.GeneralizedFunctionType)
                    parseFormalParameter((, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
                      parseMetadataStar(()
                        listener: beginMetadataStar(()
                        listener: endMetadataStar(0)
                      listener: beginFormalParameter((, MemberKind.GeneralizedFunctionType, null, null, null)
                      parseRecordType((, (, false)
                        listener: beginRecordType(()
                        parseRecordTypeField((, identifierIsOptional: true)
                          listener: beginRecordTypeEntry()
                          parseMetadataStar(()
                            listener: beginMetadataStar(int)
                            listener: endMetadataStar(0)
                          listener: handleIdentifier(int, typeReference)
                          listener: handleNoTypeArguments(,)
                          listener: handleType(int, null)
                          listener: handleNoName(,)
                          listener: endRecordTypeEntry()
                        parseRecordTypeField(,, identifierIsOptional: true)
                          listener: beginRecordTypeEntry()
                          parseMetadataStar(,)
                            listener: beginMetadataStar(int)
                            listener: endMetadataStar(0)
                          listener: handleIdentifier(int, typeReference)
                          listener: handleNoTypeArguments())
                          listener: handleType(int, null)
                          listener: handleNoName())
                          listener: endRecordTypeEntry()
                        listener: endRecordType((, null, 2, false)
                      ensureIdentifier(), formalParameterDeclaration)
                        listener: handleIdentifier(a, formalParameterDeclaration)
                      listener: handleFormalParameterWithoutValue())
                      listener: endFormalParameter(null, null, null, a, null, null, FormalParameterKind.requiredPositional, MemberKind.GeneralizedFunctionType)
                    listener: endFormalParameters(1, (, ), MemberKind.GeneralizedFunctionType)
                listener: endFunctionType(Function, null)
                listener: endTypeArguments(1, <, >)
                listener: handleType(List, null)
                listener: beginVariablesDeclaration(y2, null, null)
                parseVariablesDeclarationRest(>, true)
                  parseOptionallyInitializedIdentifier(>)
                    ensureIdentifier(>, localVariableDeclaration)
                      listener: handleIdentifier(y2, localVariableDeclaration)
                    listener: beginInitializedIdentifier(y2)
                    parseVariableInitializerOpt(y2)
                      listener: beginVariableInitializer(=)
                      parseExpression(=)
                        parsePrecedenceExpression(=, 1, true)
                          parseUnaryExpression(=, true)
                            parsePrimary(=, expression)
                              listener: handleNoTypeArguments([])
                              parseLiteralListSuffix(=, null)
                                rewriteSquareBrackets(=)
                                  link([, ])
                                  rewriter()
                                listener: handleLiteralList(0, [, null, ])
                      listener: endVariableInitializer(=)
                    listener: endInitializedIdentifier(y2)
                  ensureSemicolon(])
                  listener: endVariablesDeclaration(1, ;)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(4, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration()
  reportAllErrorTokens(void)
  listener: endCompilationUnit(1, )