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//// [promiseIdentityWithConstraints.ts]
export interface IPromise<T, V> {
then<U extends T, W extends V>(callback: (x: T) => IPromise<U, W>): IPromise<U, W>;
}
export interface Promise<T, V> {
then<U extends T, W extends V>(callback: (x: T) => Promise<U, W>): Promise<U, W>;
}
// Error because constraint V doesn't match
var x: IPromise<string, number>;
var x: Promise<string, boolean>;
//// [promiseIdentityWithConstraints.js]
"use strict";
exports.__esModule = true;
// Error because constraint V doesn't match
var x;
var x;
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