js-rules-engine/dist/engine.js

JavaScript rules engine for validating data object structures.

"use strict";
var __spreadArrays = (this && this.__spreadArrays) || function () {
    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
    for (var r = Array(s), k = 0, i = 0; i < il; i++)
        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
            r[k] = a[j];
    return r;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Engine = void 0;
var default_operators_1 = require("./default-operators");
/**
 * Engine.
 */
var Engine = /** @class */ (function () {
    function Engine() {
        /**
         * Registered operators.
         */
        this.operators = [];
        this.operators = __spreadArrays(default_operators_1.defaultOperators);
    }
    /**
     * Get operator by name.
     *
     * @param name Operator name.
     */
    Engine.prototype.getOperator = function (name) {
        var operator = this.operators.find(function (item) { return item.name === name; });
        if (!operator) {
            throw new Error("Engine: operator \"" + name + "\" not found");
        }
        return operator;
    };
    /**
     * Add an operator.
     *
     * @param operator Operator to add.
     */
    Engine.prototype.addOperator = function (operator) {
        var exists = this.operators.some(function (item) { return item.name === operator.name; });
        if (exists) {
            throw new Error("Engine: operator \"" + operator.name + "\" already exists");
        }
        this.operators.push(operator);
    };
    /**
     * Remove an operator by name.
     *
     * @param name Operator name.
     */
    Engine.prototype.removeOperator = function (name) {
        var index = this.operators.findIndex(function (item) { return item.name === name; });
        if (index !== -1) {
            this.operators.splice(index, 1);
        }
    };
    return Engine;
}());
exports.Engine = Engine;
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