parseUnit(f)
  skipErrorTokens(f)
  listener: beginCompilationUnit(f)
  syntheticPreviousToken(f)
  parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
    parseMetadataStar()
      listener: beginMetadataStar(f)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl()
      listener: beginTopLevelMember(f)
      parseTopLevelMethod(, null, , Instance of 'NoType', null, f)
        listener: beginTopLevelMethod(, null)
        listener: handleNoType()
        ensureIdentifier(, topLevelFunctionDeclaration)
          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(}, var)
          parseStatement({)
            parseStatementX({)
              parseExpressionStatementOrDeclarationAfterModifiers(var, {, null, var, null, false)
                looksLikeLocalFunction(a)
                listener: beginMetadataStar(var)
                listener: endMetadataStar(0)
                listener: handleNoType(var)
                listener: beginVariablesDeclaration(a, null, var)
                parseVariablesDeclarationRest(var, true)
                  parseOptionallyInitializedIdentifier(var)
                    ensureIdentifier(var, localVariableDeclaration)
                      listener: handleIdentifier(a, localVariableDeclaration)
                    listener: beginInitializedIdentifier(a)
                    parseVariableInitializerOpt(a)
                      listener: handleNoVariableInitializer(,)
                    listener: endInitializedIdentifier(a)
                  parseOptionallyInitializedIdentifier(,)
                    ensureIdentifier(,, localVariableDeclaration)
                      listener: handleIdentifier(b, localVariableDeclaration)
                    listener: beginInitializedIdentifier(b)
                    parseVariableInitializerOpt(b)
                      listener: handleNoVariableInitializer(;)
                    listener: endInitializedIdentifier(b)
                  ensureSemicolon(b)
                  listener: endVariablesDeclaration(2, ;)
          notEofOrValue(}, a)
          parseStatement(;)
            parseStatementX(;)
              parseExpressionStatementOrDeclarationAfterModifiers(;, ;, null, null, null, false)
                looksLikeLocalFunction(a)
                parseExpressionStatement(;)
                  parseExpression(;)
                    parsePrecedenceExpression(;, 1, true)
                      parseUnaryExpression(;, true)
                        parsePrimary(;, expression)
                          parseSendOrFunctionLiteral(;, expression)
                            parseSend(;, expression)
                              ensureIdentifier(;, expression)
                                listener: handleIdentifier(a, expression)
                              listener: handleNoTypeArguments(?.[)
                              parseArgumentsOpt(a)
                                listener: handleNoArguments(?.[)
                              listener: handleSend(a, ?.[)
                      parseArgumentOrIndexStar(a, Instance of 'NoTypeParamOrArg', false)
                        parseExpression(?.[)
                          parsePrecedenceExpression(?.[, 1, true)
                            parseUnaryExpression(?.[, true)
                              parsePrimary(?.[, expression)
                                parseSendOrFunctionLiteral(?.[, expression)
                                  parseSend(?.[, expression)
                                    ensureIdentifier(?.[, expression)
                                      listener: handleIdentifier(b, expression)
                                    listener: handleNoTypeArguments(])
                                    parseArgumentsOpt(b)
                                      listener: handleNoArguments(])
                                    listener: handleSend(b, ])
                        listener: handleIndexedExpression(null, ?.[, ])
                  ensureSemicolon(])
                  listener: handleExpressionStatement(;)
          notEofOrValue(}, a)
          parseStatement(;)
            parseStatementX(;)
              parseExpressionStatementOrDeclarationAfterModifiers(;, ;, null, null, null, false)
                looksLikeLocalFunction(a)
                parseExpressionStatement(;)
                  parseExpression(;)
                    parsePrecedenceExpression(;, 1, true)
                      parseUnaryExpression(;, true)
                        parsePrimary(;, expression)
                          parseSendOrFunctionLiteral(;, expression)
                            parseSend(;, expression)
                              ensureIdentifier(;, expression)
                                listener: handleIdentifier(a, expression)
                              listener: handleNoTypeArguments(?)
                              parseArgumentsOpt(a)
                                listener: handleNoArguments(?)
                              listener: handleSend(a, ?)
                      canParseAsConditional(?)
                        parseExpressionWithoutCascade(?)
                          parsePrecedenceExpression(?, 1, false)
                            parseUnaryExpression(?, false)
                              parsePrimary(?, expression)
                                parseLiteralListSuffix(?, null)
                                  parseExpression([)
                                    parsePrecedenceExpression([, 1, true)
                                      parseUnaryExpression([, true)
                                        parsePrimary([, expression)
                                          parseSendOrFunctionLiteral([, expression)
                                            parseSend([, expression)
                                              ensureIdentifier([, expression)
                                              parseArgumentsOpt(b)
                      parseArgumentOrIndexStar(a, Instance of 'NoTypeParamOrArg', true)
                        parseExpression([)
                          parsePrecedenceExpression([, 1, true)
                            parseUnaryExpression([, true)
                              parsePrimary([, expression)
                                parseSendOrFunctionLiteral([, expression)
                                  parseSend([, expression)
                                    ensureIdentifier([, expression)
                                      listener: handleIdentifier(b, expression)
                                    listener: handleNoTypeArguments(])
                                    parseArgumentsOpt(b)
                                      listener: handleNoArguments(])
                                    listener: handleSend(b, ])
                        listener: handleIndexedExpression(?, [, ])
                  ensureSemicolon(])
                  listener: handleExpressionStatement(;)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(3, {, })
        listener: endTopLevelMethod(f, null, })
  listener: endTopLevelDeclaration()
  reportAllErrorTokens(f)
  listener: endCompilationUnit(1, )