Initial commit to release

packages/core/src/DeferredPromise.ts

@@ -0,0 +1,14 @@
+// From: https://gist.github.com/compulim/8b49b0a744a3eeb2205e2b9506201e50
+export interface IDeferredPromise<T> {
+	promise: () => Promise<T>;
+	reject: (error: Error) => void;
+	resolve: (result: T) => void;
+}
+
+export function createDeferredPromise<T>(): Promise<IDeferredPromise<T>> {
+	return new Promise<IDeferredPromise<T>>(resolveCreate => {
+		const promise = new Promise<T>((resolve, reject) => {
+			resolveCreate({ promise: () => promise, resolve, reject });
+		});
+	});
+}