flow like the river

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

@@ -0,0 +1,30 @@
+'use strict';
+
+const deasync = require('deasync');
+
+/**
+ * Synchronously waits for a promise to return by
+ * yielding to the node event loop as needed.
+ */
+function syncPromise(promise) {
+  let isDone = false;
+  let res, err;
+
+  promise.then(value => {
+    res = value;
+    isDone = true;
+  }, error => {
+    err = error;
+    isDone = true;
+  });
+
+  deasync.loopWhile(() => !isDone);
+
+  if (err) {
+    throw err;
+  }
+
+  return res;
+}
+
+module.exports = syncPromise;