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//// [derivedClassWithoutExplicitConstructor.ts]
class Base {
a = 1;
constructor(x: number) { this.a = x; }
}
class Derived extends Base {
x = 1
y = 'hello';
}
var r = new Derived(); // error
var r2 = new Derived(1);
class Base2<T> {
a: T;
constructor(x: T) { this.a = x; }
}
class D<T extends Date> extends Base2<T> {
x = 2
y: T = null;
}
var d = new D(); // error
var d2 = new D(new Date()); // ok
//// [derivedClassWithoutExplicitConstructor.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 (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(x) {
this.a = 1;
this.a = x;
}
return Base;
}());
var Derived = /** @class */ (function (_super) {
__extends(Derived, _super);
function Derived() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.x = 1;
_this.y = 'hello';
return _this;
}
return Derived;
}(Base));
var r = new Derived(); // error
var r2 = new Derived(1);
var Base2 = /** @class */ (function () {
function Base2(x) {
this.a = x;
}
return Base2;
}());
var D = /** @class */ (function (_super) {
__extends(D, _super);
function D() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.x = 2;
_this.y = null;
return _this;
}
return D;
}(Base2));
var d = new D(); // error
var d2 = new D(new Date()); // ok
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