// ++ operator on boolean type
var BOOLEAN: boolean;

function foo(): boolean { return true; }

class A {
    public a: boolean;
    static foo() { return true; }
}
module M {
    export var n: boolean;
}

var objA = new A();

// boolean type var
var ResultIsNumber1 = ++BOOLEAN;

var ResultIsNumber2 = BOOLEAN++;

// boolean type literal
var ResultIsNumber3 = ++true;
var ResultIsNumber4 = ++{ x: true, y: false };
var ResultIsNumber5 = ++{ x: true, y: (n: boolean) => { return n; } };

var ResultIsNumber6 = true++;
var ResultIsNumber7 = { x: true, y: false }++;
var ResultIsNumber8 = { x: true, y: (n: boolean) => { return n; } }++;

// boolean type expressions
var ResultIsNumber9 = ++objA.a;
var ResultIsNumber10 = ++M.n;
var ResultIsNumber11 = ++foo();
var ResultIsNumber12 = ++A.foo();

var ResultIsNumber13 = foo()++;
var ResultIsNumber14 = A.foo()++;
var ResultIsNumber15 = objA.a++;
var ResultIsNumber16 = M.n++;

// miss assignment operators
++true;
++BOOLEAN;
++foo();
++objA.a;
++M.n;
++objA.a, M.n;

true++;
BOOLEAN++;
foo()++;
objA.a++;
M.n++;
objA.a++, M.n++;