@v4fire/core/lib/core/object/watch/engines/helpers.js

V4Fire core library

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getOrCreateLabelValueByHandlers = getOrCreateLabelValueByHandlers;
exports.getProxyType = getProxyType;
exports.getProxyValue = getProxyValue;
exports.isProxy = isProxy;
exports.unwrap = unwrap;
var _engines = _interopRequireDefault(require("../../../../core/object/watch/engines"));
var _const = require("../../../../core/object/watch/const");
function isProxy(value) {
  if (value == null || typeof value !== 'object') {
    return false;
  }
  return _const.toOriginalObject in value;
}
function unwrap(value) {
  value = value != null && typeof value === 'object' && value[_const.toOriginalObject] || value;
  return value != null && typeof value === 'object' && !Object.isFrozen(value) ? value : undefined;
}
function getProxyType(obj) {
  if (Object.isDictionary(obj)) {
    return 'dictionary';
  }
  if (Object.isArray(obj)) {
    return 'array';
  }
  if (Object.isMap(obj) || Object.isWeakMap(obj)) {
    return 'map';
  }
  if (Object.isSet(obj) || Object.isWeakSet(obj)) {
    return 'set';
  }
  return null;
}
function getProxyValue(rawValue, key, path, handlers, root, top, opts) {
  if (opts == null) {
    return rawValue;
  }
  if (Object.isTruly(opts.fromProto) && !opts.withProto) {
    return rawValue;
  }
  if (opts.deep && getProxyType(rawValue) != null) {
    const fullPath = Array.concat([], path ?? [], key),
      obj = rawValue;
    return (opts.engine ?? _engines.default).watch(obj, fullPath, null, handlers, opts, root, top ?? obj);
  }
  return rawValue;
}
function getOrCreateLabelValueByHandlers(obj, label, handlers, def) {
  let box = Object.hasOwnProperty(obj, label) ? obj[label] : null;
  if (box == null) {
    box = new WeakMap();
    Object.defineProperty(obj, label, {
      configurable: true,
      value: box
    });
  }
  let val = box.get(handlers);
  if (val === undefined && def !== undefined) {
    val = Object.isFunction(def) ? def() : def;
    box.set(handlers, val);
  }
  return val;
}