341 lines
38 KiB
JavaScript
341 lines
38 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _token = require("./token");
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var _colmetadataTokenParser = _interopRequireDefault(require("./colmetadata-token-parser"));
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var _doneTokenParser = require("./done-token-parser");
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var _envChangeTokenParser = _interopRequireDefault(require("./env-change-token-parser"));
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var _infoerrorTokenParser = require("./infoerror-token-parser");
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var _fedauthInfoParser = _interopRequireDefault(require("./fedauth-info-parser"));
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var _featureExtAckParser = _interopRequireDefault(require("./feature-ext-ack-parser"));
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var _loginackTokenParser = _interopRequireDefault(require("./loginack-token-parser"));
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var _orderTokenParser = _interopRequireDefault(require("./order-token-parser"));
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var _returnstatusTokenParser = _interopRequireDefault(require("./returnstatus-token-parser"));
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var _returnvalueTokenParser = _interopRequireDefault(require("./returnvalue-token-parser"));
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var _rowTokenParser = _interopRequireDefault(require("./row-token-parser"));
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var _nbcrowTokenParser = _interopRequireDefault(require("./nbcrow-token-parser"));
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var _sspiTokenParser = _interopRequireDefault(require("./sspi-token-parser"));
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var _helpers = require("./helpers");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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class Parser {
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debug;
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colMetadata;
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options;
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iterator;
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buffer;
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position;
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static async *parseTokens(iterable, debug, options, colMetadata = []) {
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const parser = new Parser(iterable, debug, options);
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parser.colMetadata = colMetadata;
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while (true) {
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try {
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await parser.waitForChunk();
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} catch (err) {
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if (parser.position === parser.buffer.length) {
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return;
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}
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throw err;
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}
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while (parser.buffer.length >= parser.position + 1) {
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const type = parser.buffer.readUInt8(parser.position);
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parser.position += 1;
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const token = parser.readToken(type);
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if (token !== undefined) {
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yield token;
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}
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}
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}
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}
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readToken(type) {
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switch (type) {
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case _token.TYPE.DONE:
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{
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return this.readDoneToken();
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}
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case _token.TYPE.DONEPROC:
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{
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return this.readDoneProcToken();
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}
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case _token.TYPE.DONEINPROC:
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{
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return this.readDoneInProcToken();
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}
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case _token.TYPE.ERROR:
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{
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return this.readErrorToken();
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}
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case _token.TYPE.INFO:
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{
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return this.readInfoToken();
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}
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case _token.TYPE.ENVCHANGE:
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{
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return this.readEnvChangeToken();
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}
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case _token.TYPE.LOGINACK:
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{
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return this.readLoginAckToken();
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}
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case _token.TYPE.RETURNSTATUS:
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{
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return this.readReturnStatusToken();
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}
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case _token.TYPE.ORDER:
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{
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return this.readOrderToken();
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}
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case _token.TYPE.FEDAUTHINFO:
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{
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return this.readFedAuthInfoToken();
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}
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case _token.TYPE.SSPI:
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{
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return this.readSSPIToken();
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}
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case _token.TYPE.COLMETADATA:
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{
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return this.readColMetadataToken();
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}
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case _token.TYPE.RETURNVALUE:
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{
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return this.readReturnValueToken();
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}
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case _token.TYPE.ROW:
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{
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return this.readRowToken();
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}
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case _token.TYPE.NBCROW:
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{
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return this.readNbcRowToken();
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}
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case _token.TYPE.FEATUREEXTACK:
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{
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return this.readFeatureExtAckToken();
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}
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default:
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{
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throw new Error('Unknown type: ' + type);
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}
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}
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}
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readFeatureExtAckToken() {
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let result;
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try {
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result = (0, _featureExtAckParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readFeatureExtAckToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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async readNbcRowToken() {
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return await (0, _nbcrowTokenParser.default)(this);
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}
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async readReturnValueToken() {
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return await (0, _returnvalueTokenParser.default)(this);
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}
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async readColMetadataToken() {
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const token = await (0, _colmetadataTokenParser.default)(this);
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this.colMetadata = token.columns;
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return token;
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}
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readSSPIToken() {
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let result;
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try {
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result = (0, _sspiTokenParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readSSPIToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readFedAuthInfoToken() {
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let result;
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try {
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result = (0, _fedauthInfoParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readFedAuthInfoToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readOrderToken() {
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let result;
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try {
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result = (0, _orderTokenParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readOrderToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readReturnStatusToken() {
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let result;
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try {
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result = (0, _returnstatusTokenParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readReturnStatusToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readLoginAckToken() {
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let result;
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try {
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result = (0, _loginackTokenParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readLoginAckToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readEnvChangeToken() {
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let result;
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try {
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result = (0, _envChangeTokenParser.default)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readEnvChangeToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readRowToken() {
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return (0, _rowTokenParser.default)(this);
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}
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readInfoToken() {
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let result;
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try {
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result = (0, _infoerrorTokenParser.infoParser)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readInfoToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readErrorToken() {
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let result;
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try {
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result = (0, _infoerrorTokenParser.errorParser)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readErrorToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readDoneInProcToken() {
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let result;
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try {
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result = (0, _doneTokenParser.doneInProcParser)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readDoneInProcToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readDoneProcToken() {
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let result;
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try {
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result = (0, _doneTokenParser.doneProcParser)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readDoneProcToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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readDoneToken() {
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let result;
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try {
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result = (0, _doneTokenParser.doneParser)(this.buffer, this.position, this.options);
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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return this.waitForChunk().then(() => {
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return this.readDoneToken();
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});
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}
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throw err;
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}
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this.position = result.offset;
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return result.value;
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}
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constructor(iterable, debug, options) {
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this.debug = debug;
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this.colMetadata = [];
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this.options = options;
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this.iterator = (iterable[Symbol.asyncIterator] || iterable[Symbol.iterator]).call(iterable);
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this.buffer = Buffer.alloc(0);
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this.position = 0;
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}
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async waitForChunk() {
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const result = await this.iterator.next();
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if (result.done) {
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throw new Error('unexpected end of data');
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}
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if (this.position === this.buffer.length) {
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this.buffer = result.value;
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} else {
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this.buffer = Buffer.concat([this.buffer.slice(this.position), result.value]);
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}
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this.position = 0;
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}
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}
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var _default = exports.default = Parser;
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module.exports = Parser;
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