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=== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/callSignatureAssignabilityInInheritance.ts ===
module CallSignature {
interface Base { // T
// M's
(x: number): void;
>x : number
(x: number, y: number): void;
>x : number
>y : number
}
// S's
interface I extends Base {
// N's
(x: number): number; // ok because base returns void
>x : number
(x: number, y: number): boolean; // ok because base returns void
>x : number
>y : number
<T>(x: T): string; // ok because base returns void
>x : T
}
interface Base2 { // T
// M's
(x: number): number;
>x : number
}
// S's
interface I2 extends Base2 {
// N's
(x: number): string; // error because base returns non-void;
>x : number
}
// S's
interface I3 extends Base2 {
// N's
<T>(x: T): string; // ok, adds a new call signature
>x : T
}
}
module MemberWithCallSignature {
interface Base { // T
// M's
a: (x: number) => void;
>a : (x: number) => void
>x : number
a2: (x: number, y: number) => void;
>a2 : (x: number, y: number) => void
>x : number
>y : number
a3: <T>(x: T) => void;
>a3 : <T>(x: T) => void
>x : T
}
// S's
interface I extends Base {
// N's
a: (x: number) => number; // ok because base returns void
>a : (x: number) => number
>x : number
a2: (x: number, y: number) => boolean; // ok because base returns void
>a2 : (x: number, y: number) => boolean
>x : number
>y : number
a3: <T>(x: T) => string; // ok because base returns void
>a3 : <T>(x: T) => string
>x : T
}
interface Base2 { // T
// M's
a: (x: number) => number;
>a : (x: number) => number
>x : number
a2: <T>(x: T) => T;
>a2 : <T>(x: T) => T
>x : T
}
// S's
interface I2 extends Base2 {
// N's
a: (x: number) => string; // error because base returns non-void;
>a : (x: number) => string
>x : number
}
// S's
interface I3 extends Base2 {
// N's
a2: <T>(x: T) => string; // error because base returns non-void;
>a2 : <T>(x: T) => string
>x : T
}
}
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