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//// [functionSubtypingOfVarArgs.ts]
class EventBase {
private _listeners = [];
add(listener: (...args: any[]) => void): void {
this._listeners.push(listener);
}
}
class StringEvent extends EventBase { // should work
add(listener: (items: string) => void ) { // valid, items is subtype of args
super.add(listener);
}
}
//// [functionSubtypingOfVarArgs.js]
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var EventBase = (function () {
function EventBase() {
this._listeners = [];
}
EventBase.prototype.add = function (listener) {
this._listeners.push(listener);
};
return EventBase;
}());
var StringEvent = (function (_super) {
__extends(StringEvent, _super);
function StringEvent() {
return _super !== null && _super.apply(this, arguments) || this;
}
StringEvent.prototype.add = function (listener) {
_super.prototype.add.call(this, listener);
};
return StringEvent;
}(EventBase));
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