//// [assignmentCompatWithNumericIndexer.ts]
// Derived type indexer must be subtype of base type indexer

interface Base { foo: string; }
interface Derived extends Base { bar: string; }
interface Derived2 extends Derived { baz: string; }

class A {
    [x: number]: Base;
}

var a: A;
var b: { [x: number]: Derived; }
a = b;
b = a; // error

var b2: { [x: number]: Derived2; }
a = b2;
b2 = a; // error

module Generics {
    class A<T extends Base> {
        [x: number]: T;
    }

    class B extends A<Base> {
        [x: number]: Derived; // ok
    }

    function foo<T extends Base>() {
        var a: A<T>;
        var b: { [x: number]: Derived; }
        a = b; // error
        b = a; // error

        var b2: { [x: number]: Derived2; }
        a = b2; // error
        b2 = a; // error

        var b3: { [x: number]: T; }
        a = b3; // ok
        b3 = a; // ok
    }
}

//// [assignmentCompatWithNumericIndexer.js]
// Derived type indexer must be subtype of base type indexer
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 A = /** @class */ (function () {
    function A() {
    }
    return A;
}());
var a;
var b;
a = b;
b = a; // error
var b2;
a = b2;
b2 = a; // error
var Generics;
(function (Generics) {
    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));
    function foo() {
        var a;
        var b;
        a = b; // error
        b = a; // error
        var b2;
        a = b2; // error
        b2 = a; // error
        var b3;
        a = b3; // ok
        b3 = a; // ok
    }
})(Generics || (Generics = {}));
