315 lines
6.9 KiB
Plaintext
315 lines
6.9 KiB
Plaintext
=== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/callSignatureAssignabilityInInheritance5.ts ===
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// checking subtype relations for function types as it relates to contextual signature instantiation
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// same as subtypingWithCallSignatures2 just with an extra level of indirection in the inheritance chain
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class Base { foo: string; }
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>Base : Base
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>foo : string
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class Derived extends Base { bar: string; }
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>Derived : Derived
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>Base : Base
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>bar : string
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class Derived2 extends Derived { baz: string; }
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>Derived2 : Derived2
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>Derived : Derived
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>baz : string
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class OtherDerived extends Base { bing: string; }
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>OtherDerived : OtherDerived
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>Base : Base
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>bing : string
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interface A { // T
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>A : A
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// M's
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a: (x: number) => number[];
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>a : (x: number) => number[]
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>x : number
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a2: (x: number) => string[];
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>a2 : (x: number) => string[]
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>x : number
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a3: (x: number) => void;
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>a3 : (x: number) => void
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>x : number
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a4: (x: string, y: number) => string;
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>a4 : (x: string, y: number) => string
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>x : string
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>y : number
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a5: (x: (arg: string) => number) => string;
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>a5 : (x: (arg: string) => number) => string
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>x : (arg: string) => number
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>arg : string
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a6: (x: (arg: Base) => Derived) => Base;
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>a6 : (x: (arg: Base) => Derived) => Base
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>x : (arg: Base) => Derived
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>arg : Base
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>Base : Base
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>Derived : Derived
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>Base : Base
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a7: (x: (arg: Base) => Derived) => (r: Base) => Derived;
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>a7 : (x: (arg: Base) => Derived) => (r: Base) => Derived
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>x : (arg: Base) => Derived
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>arg : Base
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>Base : Base
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>Derived : Derived
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>r : Base
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>Base : Base
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>Derived : Derived
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a8: (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
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>a8 : (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived
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>x : (arg: Base) => Derived
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>arg : Base
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>Base : Base
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>Derived : Derived
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>y : (arg2: Base) => Derived
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>arg2 : Base
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>Base : Base
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>Derived : Derived
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>r : Base
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>Base : Base
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>Derived : Derived
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a9: (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
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>a9 : (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived
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>x : (arg: Base) => Derived
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>arg : Base
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>Base : Base
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>Derived : Derived
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>y : (arg2: Base) => Derived
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>arg2 : Base
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>Base : Base
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>Derived : Derived
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>r : Base
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>Base : Base
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>Derived : Derived
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a10: (...x: Derived[]) => Derived;
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>a10 : (...x: Derived[]) => Derived
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>x : Derived[]
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>Derived : Derived
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>Derived : Derived
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a11: (x: { foo: string }, y: { foo: string; bar: string }) => Base;
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>a11 : (x: { foo: string; }, y: { foo: string; bar: string; }) => Base
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>x : { foo: string; }
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>foo : string
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>y : { foo: string; bar: string; }
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>foo : string
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>bar : string
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>Base : Base
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a12: (x: Array<Base>, y: Array<Derived2>) => Array<Derived>;
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>a12 : (x: Base[], y: Derived2[]) => Derived[]
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>x : Base[]
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>Array : T[]
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>Base : Base
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>y : Derived2[]
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>Array : T[]
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>Derived2 : Derived2
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>Array : T[]
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>Derived : Derived
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a13: (x: Array<Base>, y: Array<Derived>) => Array<Derived>;
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>a13 : (x: Base[], y: Derived[]) => Derived[]
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>x : Base[]
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>Array : T[]
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>Base : Base
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>y : Derived[]
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>Array : T[]
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>Derived : Derived
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>Array : T[]
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>Derived : Derived
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a14: (x: { a: string; b: number }) => Object;
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>a14 : (x: { a: string; b: number; }) => Object
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>x : { a: string; b: number; }
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>a : string
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>b : number
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>Object : Object
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}
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interface B extends A {
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>B : B
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>A : A
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a: <T>(x: T) => T[];
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>a : <T>(x: T) => T[]
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>T : T
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>x : T
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>T : T
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>T : T
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}
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// S's
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interface I extends B {
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>I : I
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>B : B
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// N's
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a: <T>(x: T) => T[]; // ok, instantiation of N is a subtype of M, T is number
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>a : <T>(x: T) => T[]
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>T : T
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>x : T
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>T : T
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>T : T
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a2: <T>(x: T) => string[]; // ok
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>a2 : <T>(x: T) => string[]
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>T : T
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>x : T
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>T : T
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a3: <T>(x: T) => T; // ok since Base returns void
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>a3 : <T>(x: T) => T
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>T : T
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>x : T
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>T : T
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>T : T
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a4: <T, U>(x: T, y: U) => T; // ok, instantiation of N is a subtype of M, T is string, U is number
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>a4 : <T, U>(x: T, y: U) => T
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>T : T
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>U : U
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>x : T
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>T : T
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>y : U
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>U : U
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>T : T
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a5: <T, U>(x: (arg: T) => U) => T; // ok, U is in a parameter position so inferences can be made
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>a5 : <T, U>(x: (arg: T) => U) => T
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>T : T
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>U : U
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>x : (arg: T) => U
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>arg : T
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>T : T
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>U : U
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>T : T
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a6: <T extends Base, U extends Derived>(x: (arg: T) => U) => T; // ok, same as a5 but with object type hierarchy
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>a6 : <T extends Base, U extends Derived>(x: (arg: T) => U) => T
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>T : T
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>Base : Base
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>U : U
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>Derived : Derived
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>x : (arg: T) => U
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>arg : T
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>T : T
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>U : U
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>T : T
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a7: <T extends Base, U extends Derived>(x: (arg: T) => U) => (r: T) => U; // ok
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>a7 : <T extends Base, U extends Derived>(x: (arg: T) => U) => (r: T) => U
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>T : T
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>Base : Base
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>U : U
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>Derived : Derived
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>x : (arg: T) => U
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>arg : T
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>T : T
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>U : U
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>r : T
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>T : T
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>U : U
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a8: <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: T) => U) => (r: T) => U; // ok
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>a8 : <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: T) => U) => (r: T) => U
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>T : T
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>Base : Base
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>U : U
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>Derived : Derived
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>x : (arg: T) => U
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>arg : T
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>T : T
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>U : U
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>y : (arg2: T) => U
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>arg2 : T
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>T : T
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>U : U
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>r : T
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>T : T
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>U : U
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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
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>a9 : <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: { foo: string; bing: number; }) => U) => (r: T) => U
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>T : T
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>Base : Base
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>U : U
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>Derived : Derived
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>x : (arg: T) => U
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>arg : T
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>T : T
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>U : U
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>y : (arg2: { foo: string; bing: number; }) => U
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>arg2 : { foo: string; bing: number; }
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>foo : string
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>bing : number
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>U : U
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>r : T
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>T : T
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>U : U
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a10: <T extends Derived>(...x: T[]) => T; // ok
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>a10 : <T extends Derived>(...x: T[]) => T
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>T : T
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>Derived : Derived
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>x : T[]
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>T : T
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>T : T
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a11: <T extends Base>(x: T, y: T) => T; // ok
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>a11 : <T extends Base>(x: T, y: T) => T
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>T : T
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>Base : Base
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>x : T
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>T : T
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>y : T
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>T : T
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>T : T
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a12: <T extends Array<Base>>(x: Array<Base>, y: T) => Array<Derived>; // ok, less specific parameter type
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>a12 : <T extends Base[]>(x: Base[], y: T) => Derived[]
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>T : T
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>Array : T[]
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>Base : Base
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>x : Base[]
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>Array : T[]
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>Base : Base
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>y : T
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>T : T
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>Array : T[]
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>Derived : Derived
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a13: <T extends Array<Derived>>(x: Array<Base>, y: T) => T; // ok, T = Array<Derived>, satisfies constraint, contextual signature instantiation succeeds
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>a13 : <T extends Derived[]>(x: Base[], y: T) => T
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>T : T
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>Array : T[]
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>Derived : Derived
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>x : Base[]
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>Array : T[]
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>Base : Base
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>y : T
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>T : T
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>T : T
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a14: <T>(x: { a: T; b: T }) => T; // ok, best common type yields T = {} but that's satisfactory for this signature
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>a14 : <T>(x: { a: T; b: T; }) => T
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>T : T
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>x : { a: T; b: T; }
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>a : T
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>T : T
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>b : T
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>T : T
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>T : T
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}
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