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//// [constructSignatureAssignabilityInInheritance5.ts]
// checking subtype relations for function types as it relates to contextual signature instantiation
// same as subtypingWithConstructSignatures2 just with an extra level of indirection in the inheritance chain
class Base { foo: string; }
class Derived extends Base { bar: string; }
class Derived2 extends Derived { baz: string; }
class OtherDerived extends Base { bing: string; }
interface A { // T
// M's
a: new (x: number) => number[];
a2: new (x: number) => string[];
a3: new (x: number) => void;
a4: new (x: string, y: number) => string;
a5: new (x: (arg: string) => number) => string;
a6: new (x: (arg: Base) => Derived) => Base;
a7: new (x: (arg: Base) => Derived) => (r: Base) => Derived;
a8: new (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
a9: new (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
a10: new (...x: Derived[]) => Derived;
a11: new (x: { foo: string }, y: { foo: string; bar: string }) => Base;
a12: new (x: Array<Base>, y: Array<Derived2>) => Array<Derived>;
a13: new (x: Array<Base>, y: Array<Derived>) => Array<Derived>;
a14: new (x: { a: string; b: number }) => Object;
}
interface B extends A {
a: new <T>(x: T) => T[];
}
// S's
interface I extends B {
// N's
a: new <T>(x: T) => T[]; // ok, instantiation of N is a subtype of M, T is number
a2: new <T>(x: T) => string[]; // ok
a3: new <T>(x: T) => T; // ok since Base returns void
a4: new <T, U>(x: T, y: U) => T; // ok, instantiation of N is a subtype of M, T is string, U is number
a5: new <T, U>(x: (arg: T) => U) => T; // ok, U is in a parameter position so inferences can be made
a6: new <T extends Base, U extends Derived>(x: (arg: T) => U) => T; // ok, same as a5 but with object type hierarchy
a7: new <T extends Base, U extends Derived>(x: (arg: T) => U) => (r: T) => U; // ok
a8: new <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: T) => U) => (r: T) => U; // ok
a9: new <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
a10: new <T extends Derived>(...x: T[]) => T; // ok
a11: new <T extends Base>(x: T, y: T) => T; // ok
a12: new <T extends Array<Base>>(x: Array<Base>, y: T) => Array<Derived>; // ok, less specific parameter type
a13: new <T extends Array<Derived>>(x: Array<Base>, y: T) => T; // ok, T = Array<Derived>, satisfies constraint, contextual signature instantiation succeeds
a14: new <T, U>(x: { a: T; b: U }) => T; // ok
}
//// [constructSignatureAssignabilityInInheritance5.js]
// checking subtype relations for function types as it relates to contextual signature instantiation
// same as subtypingWithConstructSignatures2 just with an extra level of indirection in the inheritance chain
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var Base = /** @class */ (function () {
function Base() {
}
return Base;
}());
var Derived = /** @class */ (function (_super) {
__extends(Derived, _super);
function Derived() {
return _super !== null && _super.apply(this, arguments) || this;
}
return Derived;
}(Base));
var Derived2 = /** @class */ (function (_super) {
__extends(Derived2, _super);
function Derived2() {
return _super !== null && _super.apply(this, arguments) || this;
}
return Derived2;
}(Derived));
var OtherDerived = /** @class */ (function (_super) {
__extends(OtherDerived, _super);
function OtherDerived() {
return _super !== null && _super.apply(this, arguments) || this;
}
return OtherDerived;
}(Base));
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