"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
function get(row, path) {
    var e_1, _a;
    if (!path.includes('.'))
        return row[path];
    var attrs = path.split('.');
    var result = row;
    try {
        for (var attrs_1 = tslib_1.__values(attrs), attrs_1_1 = attrs_1.next(); !attrs_1_1.done; attrs_1_1 = attrs_1.next()) {
            var attr = attrs_1_1.value;
            try {
                result = result[attr];
            }
            catch (_b) {
                result = undefined;
                break;
            }
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (attrs_1_1 && !attrs_1_1.done && (_a = attrs_1.return)) _a.call(attrs_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    return result;
}
function project(rows, options) {
    var fields = options.fields, _a = options.as, as = _a === void 0 ? [] : _a;
    return rows.map(function (row) {
        var result = {};
        fields.forEach(function (item, index) {
            result[as[index] || item] = get(row, item);
        });
        return result;
    });
}
exports.project = project;