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=== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/constructSignatureAssignabilityInInheritance.ts ===
// Checking basic subtype relations with construct signatures
module ConstructSignature {
interface Base { // T
// M's
new (x: number): void; // BUG 842221
>x : number
new (x: number, y: number): number;
>x : number
>y : number
}
// S's
interface I extends Base {
// N's
new (x: number): number; // satisfies subtype for both of base's call signatures
>x : number
new (x: number, y: number): boolean; // so this one hides the base type member that is identical modulo return types
>x : number
>y : number
}
interface Base2 { // T
// M's
new (x: number): number;
>x : number
}
// S's
interface I2 extends Base2 {
// N's
new (x: number): string; // error because return types don't match
>x : number
}
// S's
interface I3 extends Base2 {
// N's
new <T>(x: T): string; // ok, adds a new call signature
>x : T
}
}
module MemberWithConstructSignature {
>MemberWithConstructSignature : typeof MemberWithConstructSignature
interface Base { // T
// M's
a: new (x: number) => void;
>a : new (x: number) => void
>x : number
a2: new (x: number, y: number) => void;
>a2 : new (x: number, y: number) => void
>x : number
>y : number
a3: new <T>(x: T) => void;
>a3 : new <T>(x: T) => void
>x : T
}
var b: Base;
>b : Base
var r = new b.a(1);
>r : void
>new b.a(1) : void
>b.a : new (x: number) => void
>b : Base
>a : new (x: number) => void
>1 : 1
// S's
interface I extends Base {
// N's
a: new (x: number) => number; // ok because base returns void
>a : new (x: number) => number
>x : number
a2: new (x: number, y: number) => boolean; // ok because base returns void
>a2 : new (x: number, y: number) => boolean
>x : number
>y : number
a3: new <T>(x: T) => string; // ok because base returns void
>a3 : new <T>(x: T) => string
>x : T
}
interface Base2 { // T
// M's
a: new (x: number) => number;
>a : new (x: number) => number
>x : number
a2: new <T>(x: T) => T;
>a2 : new <T>(x: T) => T
>x : T
}
// S's
interface I2 extends Base2 {
// N's
a: new (x: number) => string; // error because base returns non-void;
>a : new (x: number) => string
>x : number
}
// S's
interface I3 extends Base2 {
// N's
a2: new <T>(x: T) => string; // error because base returns non-void;
>a2 : new <T>(x: T) => string
>x : T
}
}
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