File: genericDerivedTypeWithSpecializedBase2.js

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//// [genericDerivedTypeWithSpecializedBase2.ts]
class A<T extends { length: number }> {
    x: T;
}

class B<U> extends A<string> {
    y: U;
}

var x: A<{ length: number; foo: number }>;
var y: B<number>;
x = y;  // error


//// [genericDerivedTypeWithSpecializedBase2.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 A = /** @class */ (function () {
    function A() {
    }
    return A;
}());
var B = /** @class */ (function (_super) {
    __extends(B, _super);
    function B() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    return B;
}(A));
var x;
var y;
x = y; // error