flow like the river

VISUALIZACION/node_modules/parcel-bundler/lib/utils/localRequire.js

@@ -0,0 +1,43 @@
+'use strict';
+
+let localRequire = (() => {
+  var _ref = _asyncToGenerator(function* (name, path, triedInstall = false) {
+    let basedir = dirname(path);
+    let key = basedir + ':' + name;
+    let resolved = cache.get(key);
+    if (!resolved) {
+      try {
+        resolved = resolve.sync(name, { basedir });
+      } catch (e) {
+        if (e.code === 'MODULE_NOT_FOUND' && !triedInstall) {
+          yield worker.addCall({
+            location: require.resolve('./installPackage.js'),
+            args: [[name], path]
+          });
+          return localRequire(name, path, true);
+        }
+        throw e;
+      }
+      cache.set(key, resolved);
+    }
+
+    return require(resolved);
+  });
+
+  return function localRequire(_x, _x2) {
+    return _ref.apply(this, arguments);
+  };
+})();
+
+function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
+
+var _require = require('path');
+
+const dirname = _require.dirname;
+
+const resolve = require('resolve');
+const worker = require('../worker');
+
+const cache = new Map();
+
+module.exports = localRequire;