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//// [classIsSubtypeOfBaseType.ts]
class Base<T> {
foo: T;
}
class Derived extends Base<{ bar: string; }> {
foo: {
bar: string; baz: number; // ok
}
}
class Derived2 extends Base<{ bar: string; }> {
foo: {
bar?: string; // error
}
}
//// [classIsSubtypeOfBaseType.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 Base = (function () {
function Base() {
}
return Base;
}());
var Derived = (function (_super) {
__extends(Derived, _super);
function Derived() {
return _super !== null && _super.apply(this, arguments) || this;
}
return Derived;
}(Base));
var Derived2 = (function (_super) {
__extends(Derived2, _super);
function Derived2() {
return _super !== null && _super.apply(this, arguments) || this;
}
return Derived2;
}(Base));
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