moltres-utils/dist/common/cacheChain.js

Utils for Moltres apps

"use strict";

require("core-js/modules/es6.object.define-property");

require("core-js/modules/es6.array.for-each");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

require("core-js/modules/es6.weak-map");

require("core-js/modules/web.dom.iterable");

require("core-js/modules/es6.array.iterator");

require("core-js/modules/es6.string.iterator");

require("core-js/modules/es6.map");

var _ramda = require("ramda");

var makeCacheChain = function makeCacheChain() {
  return {
    strongMap: new Map(),
    weakMap: new WeakMap()
  };
};

var makeCacheLink = function makeCacheLink() {
  return {
    ref: {},
    cacheChain: makeCacheChain()
  };
};

var isWeakKey = (0, _ramda.is)(Object);

var setCacheKey = function setCacheKey(cacheChain, key, value) {
  if (isWeakKey(key)) {
    return cacheChain.weakMap.set(key, value);
  }

  return cacheChain.strongMap.set(key, value);
};

var getCacheKey = function getCacheKey(cacheChain, key) {
  if (isWeakKey(key)) {
    return cacheChain.weakMap.get(key);
  }

  return cacheChain.strongMap.get(key);
};

var linkCacheKey = function linkCacheKey(cacheChain, key) {
  var link = getCacheKey(cacheChain, key);

  if (!link) {
    link = makeCacheLink();
    setCacheKey(cacheChain, key, link);
  }

  return link;
};

var cache = makeCacheChain();

var cacheChain = function cacheChain() {
  var chain = cache;
  var link = linkCacheKey(chain);

  for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
    args[_key] = arguments[_key];
  }

  (0, _ramda.forEach)(function (arg) {
    link = linkCacheKey(chain, arg);
    chain = link.cacheChain;
  }, args);
  return link.ref;
};

var _default = cacheChain;
exports.default = _default;
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