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//// [typeVariableTypeGuards.ts]
// Repro from #14091
interface Foo {
foo(): void
}
class A<P extends Partial<Foo>> {
constructor(public props: Readonly<P>) {}
doSomething() {
this.props.foo && this.props.foo()
}
}
// Repro from #14415
interface Banana {
color: 'yellow';
}
class Monkey<T extends Banana | undefined> {
constructor(public a: T) {}
render() {
if (this.a) {
this.a.color;
}
}
}
interface BigBanana extends Banana {
}
class BigMonkey extends Monkey<BigBanana> {
render() {
if (this.a) {
this.a.color;
}
}
}
// Another repro
type Item = {
(): string;
x: string;
}
function f1<T extends Item | undefined>(obj: T) {
if (obj) {
obj.x;
obj["x"];
obj();
}
}
function f2<T extends Item | undefined>(obj: T | undefined) {
if (obj) {
obj.x;
obj["x"];
obj();
}
}
function f3<T extends Item | undefined>(obj: T | null) {
if (obj) {
obj.x;
obj["x"];
obj();
}
}
function f4<T extends string[] | undefined>(obj: T | undefined, x: number) {
if (obj) {
obj[x].length;
}
}
function f5<T, K extends keyof T>(obj: T | undefined, key: K) {
if (obj) {
obj[key];
}
}
//// [typeVariableTypeGuards.js]
"use strict";
// Repro from #14091
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var A = /** @class */ (function () {
function A(props) {
this.props = props;
}
A.prototype.doSomething = function () {
this.props.foo && this.props.foo();
};
return A;
}());
var Monkey = /** @class */ (function () {
function Monkey(a) {
this.a = a;
}
Monkey.prototype.render = function () {
if (this.a) {
this.a.color;
}
};
return Monkey;
}());
var BigMonkey = /** @class */ (function (_super) {
__extends(BigMonkey, _super);
function BigMonkey() {
return _super !== null && _super.apply(this, arguments) || this;
}
BigMonkey.prototype.render = function () {
if (this.a) {
this.a.color;
}
};
return BigMonkey;
}(Monkey));
function f1(obj) {
if (obj) {
obj.x;
obj["x"];
obj();
}
}
function f2(obj) {
if (obj) {
obj.x;
obj["x"];
obj();
}
}
function f3(obj) {
if (obj) {
obj.x;
obj["x"];
obj();
}
}
function f4(obj, x) {
if (obj) {
obj[x].length;
}
}
function f5(obj, key) {
if (obj) {
obj[key];
}
}
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