@decaf-ts/decorator-validation/lib/model/construction.cjs

simple decorator based validation engine

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.construct = construct;
exports.findLastProtoBeforeObject = findLastProtoBeforeObject;
exports.bindModelPrototype = bindModelPrototype;
const Model_1 = require("./Model.cjs");
/**
 * @summary Helper Function to override constructors
 *
 * @template M the model instance type
 *
 * @param {Function} constructor
 * @param {any[]} [args]
 * @return {M} the new instance
 *
 * @function construct
 * @memberOf module:decorator-validation
 */
function construct(constructor, ...args) {
    const _constr = (...argz) => new constructor(...argz);
    _constr.prototype = constructor.prototype;
    return _constr(...args);
}
/**
 * @summary Recursively finds the last prototype before Object
 * @param {object} obj
 *
 * @function findLastProtoBeforeObject
 * @memberOf module:decorator-validation
 */
function findLastProtoBeforeObject(obj) {
    let prototype = Object.getPrototypeOf(obj);
    if (prototype === Object.prototype)
        return obj;
    while (prototype !== Object.prototype) {
        prototype = Object.getPrototypeOf(prototype);
        if (prototype === Object.prototype)
            return prototype;
        if (Object.getPrototypeOf(prototype) === Object.prototype)
            return prototype;
    }
    throw new Error("Could not find proper prototype");
}
/**
 * @sumary binds the {@link Model} class as a root prototype of the provided instance
 *
 * @param {unknown} obj
 *
 * @function bindModelPrototype
 * @memberOf module:decorator-validation
 */
function bindModelPrototype(obj) {
    if (obj instanceof Model_1.Model)
        return;
    function bindPrototype(objToOverride, prototype) {
        Object.setPrototypeOf(objToOverride, prototype);
    }
    const prototype = Object.getPrototypeOf(obj);
    if (prototype === Object.prototype) {
        return bindPrototype(obj, Model_1.Model.prototype);
    }
    while (prototype !== Object.prototype) {
        const prot = Object.getPrototypeOf(prototype);
        if (prot === Object.prototype ||
            Object.getPrototypeOf(prot) === Object.prototype) {
            return bindPrototype(prototype, Model_1.Model.prototype);
        }
    }
    throw new Error("Could not find proper prototype to bind");
}
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