41 lines
No EOL
705 B
TypeScript
41 lines
No EOL
705 B
TypeScript
// basic uses of specialized signatures without errors
|
|
|
|
class Base { foo: string }
|
|
class Derived1 extends Base { bar: string }
|
|
class Derived2 extends Base { baz: string }
|
|
|
|
class C {
|
|
foo(x: 'hi'): Derived1;
|
|
foo(x: 'bye'): Derived2;
|
|
foo(x: string): Base;
|
|
foo(x) {
|
|
return x;
|
|
}
|
|
}
|
|
var c = new C();
|
|
|
|
interface I {
|
|
foo(x: 'hi'): Derived1;
|
|
foo(x: 'bye'): Derived2;
|
|
foo(x: string): Base;
|
|
}
|
|
var i: I;
|
|
|
|
var a: {
|
|
foo(x: 'hi'): Derived1;
|
|
foo(x: 'bye'): Derived2;
|
|
foo(x: string): Base;
|
|
};
|
|
|
|
c = i;
|
|
c = a;
|
|
|
|
i = c;
|
|
i = a;
|
|
|
|
a = c;
|
|
a = i;
|
|
|
|
var r1: Derived1 = c.foo('hi');
|
|
var r2: Derived2 = c.foo('bye');
|
|
var r3: Base = c.foo('hm'); |