fluidstate/abstractions/reactive-children.js

Library for fine-grained reactivity state management

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.simplePrototypeList = exports.removeSimplePrototype = exports.isSimpleObject = exports.getChildOptions = exports.getChild = exports.addSimplePrototype = void 0;
var _reactiveUtils = require("./reactive-utils");
const simplePrototypeList = new WeakSet();

/**
 * Registers a prototype object to be considered "simple".
 *
 * Objects whose prototype is in this list will be treated by `isSimpleObject`
 * as candidates for deep reactivity by default. This allows custom classes or
 * objects with specific prototypes to be automatically wrapped in reactive proxies
 * when encountered within a larger reactive structure, assuming `deep` reactivity
 * is enabled.
 *
 * @param simplePrototype The prototype object to register.
 */
exports.simplePrototypeList = simplePrototypeList;
const addSimplePrototype = simplePrototype => {
  simplePrototypeList.add(simplePrototype);
};

/**
 * Unregisters a prototype object, so it's no longer considered "simple".
 *
 * This is the counterpart to `addSimplePrototype`. Objects whose prototype was
 * previously registered will no longer be identified as "simple" by default
 * by `isSimpleObject` after being removed.
 *
 * @param simplePrototype The prototype object to unregister.
 */
exports.addSimplePrototype = addSimplePrototype;
const removeSimplePrototype = simplePrototype => {
  simplePrototypeList.delete(simplePrototype);
};
exports.removeSimplePrototype = removeSimplePrototype;
const isSimpleObject = object => {
  return Array.isArray(object) || (0, _reactiveUtils.isObject)(object) && (object instanceof Set || object instanceof Map || object instanceof Promise || Object.getPrototypeOf(object) === Object.prototype || Object.getPrototypeOf(object) === null || simplePrototypeList.has(Object.getPrototypeOf(object)));
};
exports.isSimpleObject = isSimpleObject;
const getChildOptions = parentContext => {
  return {
    plugins: parentContext.reactiveOptions?.plugins
  };
};
exports.getChildOptions = getChildOptions;
const getChild = (context, object, createProxy) => {
  if (context.reactiveOptions?.deep === false || !isSimpleObject(object)) {
    return object;
  } else {
    return createProxy();
  }
};
exports.getChild = getChild;
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