File: genericPrototypeProperty2.js

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//// [genericPrototypeProperty2.ts]
interface EventTarget { x } 
class BaseEvent {
    target: EventTarget;
}

class MyEvent<T extends EventTarget> extends BaseEvent {
    target: T;
}
class BaseEventWrapper {
    t: BaseEvent;
}

class MyEventWrapper extends BaseEventWrapper {
    t: MyEvent<any>; // any satisfies constraint and passes assignability check between 'target' properties
}

//// [genericPrototypeProperty2.js]
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 (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var BaseEvent = /** @class */ (function () {
    function BaseEvent() {
    }
    return BaseEvent;
}());
var MyEvent = /** @class */ (function (_super) {
    __extends(MyEvent, _super);
    function MyEvent() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    return MyEvent;
}(BaseEvent));
var BaseEventWrapper = /** @class */ (function () {
    function BaseEventWrapper() {
    }
    return BaseEventWrapper;
}());
var MyEventWrapper = /** @class */ (function (_super) {
    __extends(MyEventWrapper, _super);
    function MyEventWrapper() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    return MyEventWrapper;
}(BaseEventWrapper));