//// [additionOperatorWithTypeParameter.ts]
// type parameter type is not a valid operand of addition operator
enum E { a, b }

function foo<T, U>(t: T, u: U) {
    var a: any;
    var b: boolean;
    var c: number;
    var d: string;
    var e: Object;
    var g: E;
    var f: void;

    // type parameter as left operand
    var r1: any = t + a; // ok, one operand is any
    var r2 = t + b;
    var r3 = t + c;
    var r4 = t + d; // ok, one operand is string
    var r5 = t + e;
    var r6 = t + g;
    var r7 = t + f;

    // type parameter as right operand
    var r8 = a + t; // ok, one operand is any
    var r9 = b + t;
    var r10 = c + t;
    var r11 = d + t; // ok, one operand is string
    var r12 = e + t;
    var r13 = g + t;
    var r14 = f + t;

    // other cases
    var r15 = t + null;
    var r16 = t + undefined;
    var r17 = t + t;
    var r18 = t + u;
    var r19 = t + (() => { });
    var r20 = t + [];
}

//// [additionOperatorWithTypeParameter.js]
// type parameter type is not a valid operand of addition operator
var E;
(function (E) {
    E[E["a"] = 0] = "a";
    E[E["b"] = 1] = "b";
})(E || (E = {}));
function foo(t, u) {
    var a;
    var b;
    var c;
    var d;
    var e;
    var g;
    var f;
    // type parameter as left operand
    var r1 = t + a; // ok, one operand is any
    var r2 = t + b;
    var r3 = t + c;
    var r4 = t + d; // ok, one operand is string
    var r5 = t + e;
    var r6 = t + g;
    var r7 = t + f;
    // type parameter as right operand
    var r8 = a + t; // ok, one operand is any
    var r9 = b + t;
    var r10 = c + t;
    var r11 = d + t; // ok, one operand is string
    var r12 = e + t;
    var r13 = g + t;
    var r14 = f + t;
    // other cases
    var r15 = t + null;
    var r16 = t + undefined;
    var r17 = t + t;
    var r18 = t + u;
    var r19 = t + (function () { });
    var r20 = t + [];
}