// -- operator on number type
var NUMBER: number;
var NUMBER1: number[] = [1, 2];

function foo(): number { return 1; }

class A {
    public a: number;
    static foo() { return 1; }
}
module M {
    export var n: number;
}

var objA = new A();

//number type var
var ResultIsNumber1 = --NUMBER1;
var ResultIsNumber2 = NUMBER1--;

// number type literal
var ResultIsNumber3 = --1;
var ResultIsNumber4 = --{ x: 1, y: 2};
var ResultIsNumber5 = --{ x: 1, y: (n: number) => { return n; } };

var ResultIsNumber6 = 1--;
var ResultIsNumber7 = { x: 1, y: 2 }--;
var ResultIsNumber8 = { x: 1, y: (n: number) => { return n; } }--;

// number type expressions
var ResultIsNumber9 = --foo();
var ResultIsNumber10 = --A.foo();
var ResultIsNumber11 = --(NUMBER + NUMBER);

var ResultIsNumber12 = foo()--;
var ResultIsNumber13 = A.foo()--;
var ResultIsNumber14 = (NUMBER + NUMBER)--;

// miss assignment operator
--1;
--NUMBER1;
--foo();

1--;
NUMBER1--;
foo()--;