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=== tests/cases/conformance/classes/constructorDeclarations/automaticConstructors/derivedClassWithoutExplicitConstructor.ts ===
class Base {
>Base : Base
a = 1;
>a : number
>1 : 1
constructor(x: number) { this.a = x; }
>x : number
>this.a = x : number
>this.a : number
>this : this
>a : number
>x : number
}
class Derived extends Base {
>Derived : Derived
>Base : Base
x = 1
>x : number
>1 : 1
y = 'hello';
>y : string
>'hello' : "hello"
}
var r = new Derived(); // error
>r : Derived
>new Derived() : Derived
>Derived : typeof Derived
var r2 = new Derived(1);
>r2 : Derived
>new Derived(1) : Derived
>Derived : typeof Derived
>1 : 1
class Base2<T> {
>Base2 : Base2<T>
a: T;
>a : T
constructor(x: T) { this.a = x; }
>x : T
>this.a = x : T
>this.a : T
>this : this
>a : T
>x : T
}
class D<T extends Date> extends Base2<T> {
>D : D<T>
>Base2 : Base2<T>
x = 2
>x : number
>2 : 2
y: T = null;
>y : T
>null : null
}
var d = new D(); // error
>d : D<Date>
>new D() : D<Date>
>D : typeof D
var d2 = new D(new Date()); // ok
>d2 : D<Date>
>new D(new Date()) : D<Date>
>D : typeof D
>new Date() : Date
>Date : DateConstructor
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