@platform/state/lib/Patch/Patch.js

A small, simple, strongly typed, [rx/observable] state-machine.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Patch = void 0;
var tslib_1 = require("tslib");
var Patch = (function () {
    function Patch() {
    }
    Patch.toPatchSet = function (forward, backward) {
        return {
            prev: backward ? toPatches(backward) : [],
            next: forward ? toPatches(forward) : [],
        };
    };
    Patch.isEmpty = function (input) {
        if (input === null || typeof input !== 'object') {
            return true;
        }
        else {
            var isEmptyArray = function (input) { return (Array.isArray(input) ? input.length === 0 : true); };
            return isEmptyArray(input.prev) && isEmptyArray(input.next);
        }
    };
    return Patch;
}());
exports.Patch = Patch;
var toPatch = function (input) {
    var hasForwardSlash = input.path.some(function (part) {
        return typeof part === 'string' ? part.includes('/') : false;
    });
    if (hasForwardSlash) {
        var path = input.path
            .map(function (part) { return (typeof part === 'string' ? "'" + part + "'" : part); })
            .join(',');
        var err = "Property names cannot contain the \"/\" character. op: '" + input.op + "' path: [" + path + "]";
        throw new Error(err);
    }
    return tslib_1.__assign(tslib_1.__assign({}, input), { path: input.path.join('/') });
};
var toPatches = function (input) {
    var patches = Array.isArray(input) ? input : [input];
    return patches.filter(function (p) { return Boolean(p); }).map(function (p) { return toPatch(p); });
};