1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
|
=== tests/cases/conformance/expressions/typeGuards/typeGuardOfFormInstanceOfOnInterface.ts ===
// A type guard of the form x instanceof C, where C is of a subtype of the global type 'Function'
// and C has a property named 'prototype'
// - when true, narrows the type of x to the type of the 'prototype' property in C provided
// it is a subtype of the type of x, or
// - when false, has no effect on the type of x.
interface C1 {
(): C1;
prototype: C1;
>prototype : C1
p1: string;
>p1 : string
}
interface C2 {
(): C2;
prototype: C2;
>prototype : C2
p2: number;
>p2 : number
}
interface D1 extends C1 {
prototype: D1;
>prototype : D1
p3: number;
>p3 : number
}
var str: string;
>str : string
var num: number;
>num : number
var strOrNum: string | number;
>strOrNum : string | number
var c1: C1;
>c1 : C1
var c2: C2;
>c2 : C2
var d1: D1;
>d1 : D1
var c1Orc2: C1 | C2;
>c1Orc2 : C1 | C2
str = c1Orc2 instanceof c1 && c1Orc2.p1; // C1
>str = c1Orc2 instanceof c1 && c1Orc2.p1 : string
>str : string
>c1Orc2 instanceof c1 && c1Orc2.p1 : string
>c1Orc2 instanceof c1 : boolean
>c1Orc2 : C1 | C2
>c1 : C1
>c1Orc2.p1 : string
>c1Orc2 : C1
>p1 : string
num = c1Orc2 instanceof c2 && c1Orc2.p2; // C2
>num = c1Orc2 instanceof c2 && c1Orc2.p2 : number
>num : number
>c1Orc2 instanceof c2 && c1Orc2.p2 : number
>c1Orc2 instanceof c2 : boolean
>c1Orc2 : C1 | C2
>c2 : C2
>c1Orc2.p2 : number
>c1Orc2 : C2
>p2 : number
str = c1Orc2 instanceof d1 && c1Orc2.p1; // C1
>str = c1Orc2 instanceof d1 && c1Orc2.p1 : string
>str : string
>c1Orc2 instanceof d1 && c1Orc2.p1 : string
>c1Orc2 instanceof d1 : boolean
>c1Orc2 : C1 | C2
>d1 : D1
>c1Orc2.p1 : string
>c1Orc2 : D1
>p1 : string
num = c1Orc2 instanceof d1 && c1Orc2.p3; // D1
>num = c1Orc2 instanceof d1 && c1Orc2.p3 : number
>num : number
>c1Orc2 instanceof d1 && c1Orc2.p3 : number
>c1Orc2 instanceof d1 : boolean
>c1Orc2 : C1 | C2
>d1 : D1
>c1Orc2.p3 : number
>c1Orc2 : D1
>p3 : number
var c2Ord1: C2 | D1;
>c2Ord1 : C2 | D1
num = c2Ord1 instanceof c2 && c2Ord1.p2; // C2
>num = c2Ord1 instanceof c2 && c2Ord1.p2 : number
>num : number
>c2Ord1 instanceof c2 && c2Ord1.p2 : number
>c2Ord1 instanceof c2 : boolean
>c2Ord1 : C2 | D1
>c2 : C2
>c2Ord1.p2 : number
>c2Ord1 : C2
>p2 : number
num = c2Ord1 instanceof d1 && c2Ord1.p3; // D1
>num = c2Ord1 instanceof d1 && c2Ord1.p3 : number
>num : number
>c2Ord1 instanceof d1 && c2Ord1.p3 : number
>c2Ord1 instanceof d1 : boolean
>c2Ord1 : C2 | D1
>d1 : D1
>c2Ord1.p3 : number
>c2Ord1 : D1
>p3 : number
str = c2Ord1 instanceof d1 && c2Ord1.p1; // D1
>str = c2Ord1 instanceof d1 && c2Ord1.p1 : string
>str : string
>c2Ord1 instanceof d1 && c2Ord1.p1 : string
>c2Ord1 instanceof d1 : boolean
>c2Ord1 : C2 | D1
>d1 : D1
>c2Ord1.p1 : string
>c2Ord1 : D1
>p1 : string
var r2: D1 | C2 = c2Ord1 instanceof c1 && c2Ord1; // C2 | D1
>r2 : C2 | D1
>c2Ord1 instanceof c1 && c2Ord1 : D1
>c2Ord1 instanceof c1 : boolean
>c2Ord1 : C2 | D1
>c1 : C1
>c2Ord1 : D1
|