2014-09-12 22:35:07 +02:00
tests/cases/conformance/types/typeRelationships/recursiveTypes/recursiveTypesUsedAsFunctionParameters.ts(21,16): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
2014-07-13 01:04:16 +02:00
==== tests/cases/conformance/types/typeRelationships/recursiveTypes/recursiveTypesUsedAsFunctionParameters.ts (1 errors) ====
class List<T> {
data: T;
next: List<List<T>>;
}
class MyList<T> {
data: T;
next: MyList<MyList<T>>;
}
function foo<T>(x: List<T>);
function foo<U>(x: List<U>); // error, duplicate
function foo<T>(x: List<T>) {
}
function foo2<T>(x: List<T>);
function foo2<U>(x: MyList<U>); // ok, nominally compared with first overload
function foo2<T>(x: any) {
}
function other<T extends List<U>, U>() {
~~~~~~~~~~~~~~~~~
2014-09-12 00:19:57 +02:00
!!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
2014-07-13 01:04:16 +02:00
// error but wrong error
// BUG 838247
function foo3<V>(x: T);
function foo3<V>(x: MyList<V>) { }
// should be error
// BUG 838247
function foo4<V>(x: T);
function foo4<V>(x: List<V>) { }
// ok
function foo5<V>(x: T): string;
function foo5<V>(x: List<V>): number;
function foo5<V>(x: MyList<V>): boolean;
function foo5<V>(x: any): any { return null; }
var list: List<string>;
var myList: MyList<string>;
var r = foo5(list);
var r2 = foo5(myList);
}