TypeScript/tests/cases/compiler/arrayBestCommonTypes.ts
2014-07-12 17:30:19 -07:00

52 lines
2.1 KiB
TypeScript

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 ];
}
}