399 lines
8.5 KiB
Plaintext
399 lines
8.5 KiB
Plaintext
=== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/callSignatureAssignabilityInInheritance2.ts ===
|
|
// checking subtype relations for function types as it relates to contextual signature instantiation
|
|
|
|
class Base { foo: string; }
|
|
>Base : Base
|
|
>foo : string
|
|
|
|
class Derived extends Base { bar: string; }
|
|
>Derived : Derived
|
|
>Base : Base
|
|
>bar : string
|
|
|
|
class Derived2 extends Derived { baz: string; }
|
|
>Derived2 : Derived2
|
|
>Derived : Derived
|
|
>baz : string
|
|
|
|
class OtherDerived extends Base { bing: string; }
|
|
>OtherDerived : OtherDerived
|
|
>Base : Base
|
|
>bing : string
|
|
|
|
interface A { // T
|
|
>A : A
|
|
|
|
// M's
|
|
a: (x: number) => number[];
|
|
>a : (x: number) => number[]
|
|
>x : number
|
|
|
|
a2: (x: number) => string[];
|
|
>a2 : (x: number) => string[]
|
|
>x : number
|
|
|
|
a3: (x: number) => void;
|
|
>a3 : (x: number) => void
|
|
>x : number
|
|
|
|
a4: (x: string, y: number) => string;
|
|
>a4 : (x: string, y: number) => string
|
|
>x : string
|
|
>y : number
|
|
|
|
a5: (x: (arg: string) => number) => string;
|
|
>a5 : (x: (arg: string) => number) => string
|
|
>x : (arg: string) => number
|
|
>arg : string
|
|
|
|
a6: (x: (arg: Base) => Derived) => Base;
|
|
>a6 : (x: (arg: Base) => Derived) => Base
|
|
>x : (arg: Base) => Derived
|
|
>arg : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
>Base : Base
|
|
|
|
a7: (x: (arg: Base) => Derived) => (r: Base) => Derived;
|
|
>a7 : (x: (arg: Base) => Derived) => (r: Base) => Derived
|
|
>x : (arg: Base) => Derived
|
|
>arg : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
>r : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
|
|
a8: (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
|
|
>a8 : (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived
|
|
>x : (arg: Base) => Derived
|
|
>arg : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
>y : (arg2: Base) => Derived
|
|
>arg2 : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
>r : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
|
|
a9: (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
|
|
>a9 : (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived
|
|
>x : (arg: Base) => Derived
|
|
>arg : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
>y : (arg2: Base) => Derived
|
|
>arg2 : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
>r : Base
|
|
>Base : Base
|
|
>Derived : Derived
|
|
|
|
a10: (...x: Derived[]) => Derived;
|
|
>a10 : (...x: Derived[]) => Derived
|
|
>x : Derived[]
|
|
>Derived : Derived
|
|
>Derived : Derived
|
|
|
|
a11: (x: { foo: string }, y: { foo: string; bar: string }) => Base;
|
|
>a11 : (x: { foo: string; }, y: { foo: string; bar: string; }) => Base
|
|
>x : { foo: string; }
|
|
>foo : string
|
|
>y : { foo: string; bar: string; }
|
|
>foo : string
|
|
>bar : string
|
|
>Base : Base
|
|
|
|
a12: (x: Array<Base>, y: Array<Derived2>) => Array<Derived>;
|
|
>a12 : (x: Base[], y: Derived2[]) => Derived[]
|
|
>x : Base[]
|
|
>Array : T[]
|
|
>Base : Base
|
|
>y : Derived2[]
|
|
>Array : T[]
|
|
>Derived2 : Derived2
|
|
>Array : T[]
|
|
>Derived : Derived
|
|
|
|
a13: (x: Array<Base>, y: Array<Derived>) => Array<Derived>;
|
|
>a13 : (x: Base[], y: Derived[]) => Derived[]
|
|
>x : Base[]
|
|
>Array : T[]
|
|
>Base : Base
|
|
>y : Derived[]
|
|
>Array : T[]
|
|
>Derived : Derived
|
|
>Array : T[]
|
|
>Derived : Derived
|
|
|
|
a14: (x: { a: string; b: number }) => Object;
|
|
>a14 : (x: { a: string; b: number; }) => Object
|
|
>x : { a: string; b: number; }
|
|
>a : string
|
|
>b : number
|
|
>Object : Object
|
|
|
|
a15: {
|
|
>a15 : { (x: number): number[]; (x: string): string[]; }
|
|
|
|
(x: number): number[];
|
|
>x : number
|
|
|
|
(x: string): string[];
|
|
>x : string
|
|
|
|
};
|
|
a16: {
|
|
>a16 : { <T extends Derived>(x: T): number[]; <U extends Base>(x: U): number[]; }
|
|
|
|
<T extends Derived>(x: T): number[];
|
|
>T : T
|
|
>Derived : Derived
|
|
>x : T
|
|
>T : T
|
|
|
|
<U extends Base>(x: U): number[];
|
|
>U : U
|
|
>Base : Base
|
|
>x : U
|
|
>U : U
|
|
|
|
};
|
|
a17: {
|
|
>a17 : { (x: (a: number) => number): number[]; (x: (a: string) => string): string[]; }
|
|
|
|
(x: (a: number) => number): number[];
|
|
>x : (a: number) => number
|
|
>a : number
|
|
|
|
(x: (a: string) => string): string[];
|
|
>x : (a: string) => string
|
|
>a : string
|
|
|
|
};
|
|
a18: {
|
|
>a18 : { (x: { (a: number): number; (a: string): string; }): any[]; (x: { (a: boolean): boolean; (a: Date): Date; }): any[]; }
|
|
|
|
(x: {
|
|
>x : { (a: number): number; (a: string): string; }
|
|
|
|
(a: number): number;
|
|
>a : number
|
|
|
|
(a: string): string;
|
|
>a : string
|
|
|
|
}): any[];
|
|
(x: {
|
|
>x : { (a: boolean): boolean; (a: Date): Date; }
|
|
|
|
(a: boolean): boolean;
|
|
>a : boolean
|
|
|
|
(a: Date): Date;
|
|
>a : Date
|
|
>Date : Date
|
|
>Date : Date
|
|
|
|
}): any[];
|
|
};
|
|
}
|
|
|
|
// S's
|
|
interface I extends A {
|
|
>I : I
|
|
>A : A
|
|
|
|
// N's
|
|
a: <T>(x: T) => T[]; // ok, instantiation of N is a subtype of M, T is number
|
|
>a : <T>(x: T) => T[]
|
|
>T : T
|
|
>x : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a2: <T>(x: T) => string[]; // ok
|
|
>a2 : <T>(x: T) => string[]
|
|
>T : T
|
|
>x : T
|
|
>T : T
|
|
|
|
a3: <T>(x: T) => T; // ok since Base returns void
|
|
>a3 : <T>(x: T) => T
|
|
>T : T
|
|
>x : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a4: <T, U>(x: T, y: U) => T; // ok, instantiation of N is a subtype of M, T is string, U is number
|
|
>a4 : <T, U>(x: T, y: U) => T
|
|
>T : T
|
|
>U : U
|
|
>x : T
|
|
>T : T
|
|
>y : U
|
|
>U : U
|
|
>T : T
|
|
|
|
a5: <T, U>(x: (arg: T) => U) => T; // ok, U is in a parameter position so inferences can be made
|
|
>a5 : <T, U>(x: (arg: T) => U) => T
|
|
>T : T
|
|
>U : U
|
|
>x : (arg: T) => U
|
|
>arg : T
|
|
>T : T
|
|
>U : U
|
|
>T : T
|
|
|
|
a6: <T extends Base, U extends Derived>(x: (arg: T) => U) => T; // ok, same as a5 but with object type hierarchy
|
|
>a6 : <T extends Base, U extends Derived>(x: (arg: T) => U) => T
|
|
>T : T
|
|
>Base : Base
|
|
>U : U
|
|
>Derived : Derived
|
|
>x : (arg: T) => U
|
|
>arg : T
|
|
>T : T
|
|
>U : U
|
|
>T : T
|
|
|
|
a7: <T extends Base, U extends Derived>(x: (arg: T) => U) => (r: T) => U; // ok
|
|
>a7 : <T extends Base, U extends Derived>(x: (arg: T) => U) => (r: T) => U
|
|
>T : T
|
|
>Base : Base
|
|
>U : U
|
|
>Derived : Derived
|
|
>x : (arg: T) => U
|
|
>arg : T
|
|
>T : T
|
|
>U : U
|
|
>r : T
|
|
>T : T
|
|
>U : U
|
|
|
|
a8: <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: T) => U) => (r: T) => U; // ok
|
|
>a8 : <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: T) => U) => (r: T) => U
|
|
>T : T
|
|
>Base : Base
|
|
>U : U
|
|
>Derived : Derived
|
|
>x : (arg: T) => U
|
|
>arg : T
|
|
>T : T
|
|
>U : U
|
|
>y : (arg2: T) => U
|
|
>arg2 : T
|
|
>T : T
|
|
>U : U
|
|
>r : T
|
|
>T : T
|
|
>U : U
|
|
|
|
a9: <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: { foo: string; bing: number }) => U) => (r: T) => U; // ok, same as a8 with compatible object literal
|
|
>a9 : <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: { foo: string; bing: number; }) => U) => (r: T) => U
|
|
>T : T
|
|
>Base : Base
|
|
>U : U
|
|
>Derived : Derived
|
|
>x : (arg: T) => U
|
|
>arg : T
|
|
>T : T
|
|
>U : U
|
|
>y : (arg2: { foo: string; bing: number; }) => U
|
|
>arg2 : { foo: string; bing: number; }
|
|
>foo : string
|
|
>bing : number
|
|
>U : U
|
|
>r : T
|
|
>T : T
|
|
>U : U
|
|
|
|
a10: <T extends Derived>(...x: T[]) => T; // ok
|
|
>a10 : <T extends Derived>(...x: T[]) => T
|
|
>T : T
|
|
>Derived : Derived
|
|
>x : T[]
|
|
>T : T
|
|
>T : T
|
|
|
|
a11: <T extends Base>(x: T, y: T) => T; // ok
|
|
>a11 : <T extends Base>(x: T, y: T) => T
|
|
>T : T
|
|
>Base : Base
|
|
>x : T
|
|
>T : T
|
|
>y : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a12: <T extends Array<Base>>(x: Array<Base>, y: T) => Array<Derived>; // ok, less specific parameter type
|
|
>a12 : <T extends Base[]>(x: Base[], y: T) => Derived[]
|
|
>T : T
|
|
>Array : T[]
|
|
>Base : Base
|
|
>x : Base[]
|
|
>Array : T[]
|
|
>Base : Base
|
|
>y : T
|
|
>T : T
|
|
>Array : T[]
|
|
>Derived : Derived
|
|
|
|
a13: <T extends Array<Derived>>(x: Array<Base>, y: T) => T; // ok, T = Array<Derived>, satisfies constraint, contextual signature instantiation succeeds
|
|
>a13 : <T extends Derived[]>(x: Base[], y: T) => T
|
|
>T : T
|
|
>Array : T[]
|
|
>Derived : Derived
|
|
>x : Base[]
|
|
>Array : T[]
|
|
>Base : Base
|
|
>y : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a14: <T>(x: { a: T; b: T }) => T; // ok, best common type yields T = {} but that's satisfactory for this signature
|
|
>a14 : <T>(x: { a: T; b: T; }) => T
|
|
>T : T
|
|
>x : { a: T; b: T; }
|
|
>a : T
|
|
>T : T
|
|
>b : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a15: <T>(x: T) => T[]; // ok
|
|
>a15 : <T>(x: T) => T[]
|
|
>T : T
|
|
>x : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a16: <T extends Base>(x: T) => number[]; // ok
|
|
>a16 : <T extends Base>(x: T) => number[]
|
|
>T : T
|
|
>Base : Base
|
|
>x : T
|
|
>T : T
|
|
|
|
a17: <T>(x: (a: T) => T) => T[]; // ok
|
|
>a17 : <T>(x: (a: T) => T) => T[]
|
|
>T : T
|
|
>x : (a: T) => T
|
|
>a : T
|
|
>T : T
|
|
>T : T
|
|
>T : T
|
|
|
|
a18: <T>(x: (a: T) => T) => T[]; // ok, no inferences for T but assignable to any
|
|
>a18 : <T>(x: (a: T) => T) => T[]
|
|
>T : T
|
|
>x : (a: T) => T
|
|
>a : T
|
|
>T : T
|
|
>T : T
|
|
>T : T
|
|
}
|