124 lines
13 KiB
JavaScript
124 lines
13 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 _metadataParser = require("../metadata-parser");
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var _token = require("./token");
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var _helpers = require("./helpers");
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function readTableName(buf, offset, metadata, options) {
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if (!metadata.type.hasTableName) {
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return new _helpers.Result(undefined, offset);
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}
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if (options.tdsVersion < '7_2') {
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return (0, _helpers.readUsVarChar)(buf, offset);
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}
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let numberOfTableNameParts;
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({
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offset,
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value: numberOfTableNameParts
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} = (0, _helpers.readUInt8)(buf, offset));
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const tableName = [];
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for (let i = 0; i < numberOfTableNameParts; i++) {
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let tableNamePart;
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({
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offset,
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value: tableNamePart
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} = (0, _helpers.readUsVarChar)(buf, offset));
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tableName.push(tableNamePart);
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}
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return new _helpers.Result(tableName, offset);
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}
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function readColumnName(buf, offset, index, metadata, options) {
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let colName;
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({
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offset,
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value: colName
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} = (0, _helpers.readBVarChar)(buf, offset));
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if (options.columnNameReplacer) {
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return new _helpers.Result(options.columnNameReplacer(colName, index, metadata), offset);
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} else if (options.camelCaseColumns) {
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return new _helpers.Result(colName.replace(/^[A-Z]/, function (s) {
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return s.toLowerCase();
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}), offset);
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} else {
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return new _helpers.Result(colName, offset);
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}
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}
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function readColumn(buf, offset, options, index) {
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let metadata;
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({
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offset,
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value: metadata
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} = (0, _metadataParser.readMetadata)(buf, offset, options));
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let tableName;
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({
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offset,
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value: tableName
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} = readTableName(buf, offset, metadata, options));
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let colName;
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({
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offset,
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value: colName
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} = readColumnName(buf, offset, index, metadata, options));
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return new _helpers.Result({
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userType: metadata.userType,
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flags: metadata.flags,
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type: metadata.type,
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collation: metadata.collation,
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precision: metadata.precision,
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scale: metadata.scale,
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udtInfo: metadata.udtInfo,
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dataLength: metadata.dataLength,
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schema: metadata.schema,
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colName: colName,
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tableName: tableName
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}, offset);
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}
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async function colMetadataParser(parser) {
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let columnCount;
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while (true) {
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let offset;
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try {
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({
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offset,
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value: columnCount
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} = (0, _helpers.readUInt16LE)(parser.buffer, parser.position));
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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await parser.waitForChunk();
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continue;
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}
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throw err;
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}
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parser.position = offset;
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break;
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}
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const columns = [];
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for (let i = 0; i < columnCount; i++) {
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while (true) {
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let column;
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let offset;
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try {
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({
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offset,
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value: column
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} = readColumn(parser.buffer, parser.position, parser.options, i));
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} catch (err) {
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if (err instanceof _helpers.NotEnoughDataError) {
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await parser.waitForChunk();
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continue;
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}
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throw err;
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}
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parser.position = offset;
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columns.push(column);
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break;
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}
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}
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return new _token.ColMetadataToken(columns);
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}
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var _default = exports.default = colMetadataParser;
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module.exports = colMetadataParser;
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//# sourceMappingURL=data:application/json;charset=utf-8;base64,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