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module O {
export class A {
}
export class B extends A {
}
export class C extends B {
}
export interface I {
f(s:string):number;
f(n:number):string;
g(n1:number,n2:number):number;
g(n:number):string;
g(a:A):C;
g(c:C):string;
h(s1:string,s2:number):string;
h(s1:number,s2:string):number;
}
}
declare var x:O.I;
var e:string=x.g(new O.A()); // matches overload but bad assignment
var y:string=x.f(3); // good
y=x.f("nope"); // can't assign number to string
var z:string=x.g(x.g(3,3)); // good
z=x.g(2,2,2); // no match
z=x.g(); // no match
z=x.g(new O.B()); // ambiguous (up and down conversion)
z=x.h(2,2); // no match
z=x.h("hello",0); // good
var v=x.g;
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