File: recursiveIdenticalAssignment.js

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//// [recursiveIdenticalAssignment.ts]
interface A<T> {
    x: A<T>
}

interface B<T extends B<B<T>>> { // error, constraint referencing itself
    x: B<T>
}

var a: A<A<any>>
var b: B<B<any>> = a // Error, any does not satisfy constraint B<B<T>>


//// [recursiveIdenticalAssignment.js]
var a;
var b = a; // Error, any does not satisfy constraint B<B<T>>