Initial commit

themes/keepit/node_modules/core-js-compat/compat.js

@@ -0,0 +1,78 @@
+'use strict';
+const { compare, filterOutStabilizedProposals, has, intersection } = require('./helpers');
+const data = require('./data');
+const entries = require('./entries');
+const getModulesListForTargetVersion = require('./get-modules-list-for-target-version');
+const allModules = require('./modules');
+const targetsParser = require('./targets-parser');
+
+function getModules(filter) {
+  if (typeof filter == 'string') {
+    if (has(entries, filter)) return entries[filter];
+    return allModules.filter(it => it.startsWith(filter));
+  } else if (filter instanceof RegExp) return allModules.filter(it => filter.test(it));
+  throw TypeError('Wrong filter!');
+}
+
+function normalizeModules(option) {
+  // TODO: use `.flatMap` in core-js@4
+  return new Set(Array.isArray(option) ? [].concat.apply([], option.map(getModules)) : getModules(option));
+}
+
+function checkModule(name, targets) {
+  const result = {
+    required: !targets,
+    targets: {},
+  };
+
+  if (!targets) return result;
+
+  const requirements = data[name];
+
+  for (const [engine, version] of targets) {
+    if (!has(requirements, engine) || compare(version, '<', requirements[engine])) {
+      result.required = true;
+      result.targets[engine] = version;
+    }
+  }
+
+  return result;
+}
+
+module.exports = function ({
+  filter = null, // TODO: Obsolete, remove from `core-js@4`
+  modules = null,
+  exclude = [],
+  targets = null,
+  version = null,
+} = {}) {
+  if (modules == null) modules = filter;
+
+  const parsedTargets = targets ? targetsParser(targets) : null;
+
+  const result = {
+    list: [],
+    targets: {},
+  };
+
+  exclude = normalizeModules(exclude);
+
+  modules = modules ? [...normalizeModules(modules)] : allModules;
+
+  if (exclude.size) modules = modules.filter(it => !exclude.has(it));
+
+  modules = intersection(modules, version ? getModulesListForTargetVersion(version) : allModules);
+
+  modules = filterOutStabilizedProposals(modules);
+
+  for (const key of modules) {
+    const check = checkModule(key, parsedTargets);
+
+    if (check.required) {
+      result.list.push(key);
+      result.targets[key] = check.targets;
+    }
+  }
+
+  return result;
+};