//// [arrayBestCommonTypes.ts]
module EmptyTypes {
    interface iface { }
    class base implements iface { }
    class base2 implements iface { }
    class derived extends base { }


    class f {
        public voidIfAny(x: boolean, y?: boolean): number;
        public voidIfAny(x: string, y?: boolean): number;
        public voidIfAny(x: number, y?: boolean): number;
        public voidIfAny(x: any, y = false): any { return null; }

        public x() {
            <number>(this.voidIfAny([4, 2][0]));
            <number>(this.voidIfAny([4, 2, undefined][0]));
            <number>(this.voidIfAny([undefined, 2, 4][0]));
            <number>(this.voidIfAny([null, 2, 4][0]));
            <number>(this.voidIfAny([2, 4, null][0]));
            <number>(this.voidIfAny([undefined, 4, null][0]));

            <number>(this.voidIfAny(['', "q"][0]));
            <number>(this.voidIfAny(['', "q", undefined][0]));
            <number>(this.voidIfAny([undefined, "q", ''][0]));
            <number>(this.voidIfAny([null, "q", ''][0]));
            <number>(this.voidIfAny(["q", '', null][0]));
            <number>(this.voidIfAny([undefined, '', null][0]));

            <number>(this.voidIfAny([[3, 4], [null]][0][0]));


            var t1: { x: number; y: base; }[] = [{ x: 7, y: new derived() }, { x: 5, y: new base() }];
            var t2: { x: boolean; y: base; }[] = [{ x: true, y: new derived() }, { x: false, y: new base() }];
            var t3: { x: string; y: base; }[] = [{ x: undefined, y: new base() }, { x: '', y: new derived() }];

            var anyObj: any = null;
            // Order matters here so test all the variants
            var a1 = [{ x: 0, y: 'a' }, { x: 'a', y: 'a' }, { x: anyObj, y: 'a' }];
            var a2 = [{ x: anyObj, y: 'a' }, { x: 0, y: 'a' }, { x: 'a', y: 'a' }];
            var a3 = [{ x: 0, y: 'a' }, { x: anyObj, y: 'a' }, { x: 'a', y: 'a' }];

            var ifaceObj: iface = null;
            var baseObj = new base();
            var base2Obj = new base2();

            var b1 = [baseObj, base2Obj, ifaceObj];
            var b2 = [base2Obj, baseObj, ifaceObj];
            var b3 = [baseObj, ifaceObj, base2Obj];
            var b4 = [ifaceObj, baseObj, base2Obj];
        }
    }
}

module NonEmptyTypes {
    interface iface { x: string; }
    class base implements iface { x: string; y: string; }
    class base2 implements iface { x: string; z: string; }
    class derived extends base { a: string; }


    class f {
        public voidIfAny(x: boolean, y?: boolean): number;
        public voidIfAny(x: string, y?: boolean): number;
        public voidIfAny(x: number, y?: boolean): number;
        public voidIfAny(x: any, y = false): any { return null; }

        public x() {
            <number>(this.voidIfAny([4, 2][0]));
            <number>(this.voidIfAny([4, 2, undefined][0]));
            <number>(this.voidIfAny([undefined, 2, 4][0]));
            <number>(this.voidIfAny([null, 2, 4][0]));
            <number>(this.voidIfAny([2, 4, null][0]));
            <number>(this.voidIfAny([undefined, 4, null][0]));

            <number>(this.voidIfAny(['', "q"][0]));
            <number>(this.voidIfAny(['', "q", undefined][0]));
            <number>(this.voidIfAny([undefined, "q", ''][0]));
            <number>(this.voidIfAny([null, "q", ''][0]));
            <number>(this.voidIfAny(["q", '', null][0]));
            <number>(this.voidIfAny([undefined, '', null][0]));

            <number>(this.voidIfAny([[3, 4], [null]][0][0]));


            var t1: { x: number; y: base; }[] = [{ x: 7, y: new derived() }, { x: 5, y: new base() }];
            var t2: { x: boolean; y: base; }[] = [{ x: true, y: new derived() }, { x: false, y: new base() }];
            var t3: { x: string; y: base; }[] = [{ x: undefined, y: new base() }, { x: '', y: new derived() }];

            var anyObj: any = null;
            // Order matters here so test all the variants
            var a1 = [{ x: 0, y: 'a' }, { x: 'a', y: 'a' }, { x: anyObj, y: 'a' }];
            var a2 = [{ x: anyObj, y: 'a' }, { x: 0, y: 'a' }, { x: 'a', y: 'a' }];
            var a3 = [{ x: 0, y: 'a' }, { x: anyObj, y: 'a' }, { x: 'a', y: 'a' }];

            var ifaceObj: iface = null;
            var baseObj = new base();
            var base2Obj = new base2();

            var b1 = [baseObj, base2Obj, ifaceObj];
            var b2 = [base2Obj, baseObj, ifaceObj];
            var b3 = [baseObj, ifaceObj, base2Obj];
            var b4 = [ifaceObj, baseObj, base2Obj];
        }
    }
}



//// [arrayBestCommonTypes.js]
var __extends = (this && this.__extends) || (function () {
    var 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 function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var EmptyTypes;
(function (EmptyTypes) {
    var base = (function () {
        function base() {
        }
        return base;
    }());
    var base2 = (function () {
        function base2() {
        }
        return base2;
    }());
    var derived = (function (_super) {
        __extends(derived, _super);
        function derived() {
            return _super !== null && _super.apply(this, arguments) || this;
        }
        return derived;
    }(base));
    var f = (function () {
        function f() {
        }
        f.prototype.voidIfAny = function (x, y) {
            if (y === void 0) { y = false; }
            return null;
        };
        f.prototype.x = function () {
            (this.voidIfAny([4, 2][0]));
            (this.voidIfAny([4, 2, undefined][0]));
            (this.voidIfAny([undefined, 2, 4][0]));
            (this.voidIfAny([null, 2, 4][0]));
            (this.voidIfAny([2, 4, null][0]));
            (this.voidIfAny([undefined, 4, null][0]));
            (this.voidIfAny(['', "q"][0]));
            (this.voidIfAny(['', "q", undefined][0]));
            (this.voidIfAny([undefined, "q", ''][0]));
            (this.voidIfAny([null, "q", ''][0]));
            (this.voidIfAny(["q", '', null][0]));
            (this.voidIfAny([undefined, '', null][0]));
            (this.voidIfAny([[3, 4], [null]][0][0]));
            var t1 = [{ x: 7, y: new derived() }, { x: 5, y: new base() }];
            var t2 = [{ x: true, y: new derived() }, { x: false, y: new base() }];
            var t3 = [{ x: undefined, y: new base() }, { x: '', y: new derived() }];
            var anyObj = null;
            // Order matters here so test all the variants
            var a1 = [{ x: 0, y: 'a' }, { x: 'a', y: 'a' }, { x: anyObj, y: 'a' }];
            var a2 = [{ x: anyObj, y: 'a' }, { x: 0, y: 'a' }, { x: 'a', y: 'a' }];
            var a3 = [{ x: 0, y: 'a' }, { x: anyObj, y: 'a' }, { x: 'a', y: 'a' }];
            var ifaceObj = null;
            var baseObj = new base();
            var base2Obj = new base2();
            var b1 = [baseObj, base2Obj, ifaceObj];
            var b2 = [base2Obj, baseObj, ifaceObj];
            var b3 = [baseObj, ifaceObj, base2Obj];
            var b4 = [ifaceObj, baseObj, base2Obj];
        };
        return f;
    }());
})(EmptyTypes || (EmptyTypes = {}));
var NonEmptyTypes;
(function (NonEmptyTypes) {
    var base = (function () {
        function base() {
        }
        return base;
    }());
    var base2 = (function () {
        function base2() {
        }
        return base2;
    }());
    var derived = (function (_super) {
        __extends(derived, _super);
        function derived() {
            return _super !== null && _super.apply(this, arguments) || this;
        }
        return derived;
    }(base));
    var f = (function () {
        function f() {
        }
        f.prototype.voidIfAny = function (x, y) {
            if (y === void 0) { y = false; }
            return null;
        };
        f.prototype.x = function () {
            (this.voidIfAny([4, 2][0]));
            (this.voidIfAny([4, 2, undefined][0]));
            (this.voidIfAny([undefined, 2, 4][0]));
            (this.voidIfAny([null, 2, 4][0]));
            (this.voidIfAny([2, 4, null][0]));
            (this.voidIfAny([undefined, 4, null][0]));
            (this.voidIfAny(['', "q"][0]));
            (this.voidIfAny(['', "q", undefined][0]));
            (this.voidIfAny([undefined, "q", ''][0]));
            (this.voidIfAny([null, "q", ''][0]));
            (this.voidIfAny(["q", '', null][0]));
            (this.voidIfAny([undefined, '', null][0]));
            (this.voidIfAny([[3, 4], [null]][0][0]));
            var t1 = [{ x: 7, y: new derived() }, { x: 5, y: new base() }];
            var t2 = [{ x: true, y: new derived() }, { x: false, y: new base() }];
            var t3 = [{ x: undefined, y: new base() }, { x: '', y: new derived() }];
            var anyObj = null;
            // Order matters here so test all the variants
            var a1 = [{ x: 0, y: 'a' }, { x: 'a', y: 'a' }, { x: anyObj, y: 'a' }];
            var a2 = [{ x: anyObj, y: 'a' }, { x: 0, y: 'a' }, { x: 'a', y: 'a' }];
            var a3 = [{ x: 0, y: 'a' }, { x: anyObj, y: 'a' }, { x: 'a', y: 'a' }];
            var ifaceObj = null;
            var baseObj = new base();
            var base2Obj = new base2();
            var b1 = [baseObj, base2Obj, ifaceObj];
            var b2 = [base2Obj, baseObj, ifaceObj];
            var b3 = [baseObj, ifaceObj, base2Obj];
            var b4 = [ifaceObj, baseObj, base2Obj];
        };
        return f;
    }());
})(NonEmptyTypes || (NonEmptyTypes = {}));
