TypeScript/tests/cases/compiler/mixinPrivateAndProtected.ts
Anders Hejlsberg 88961a276d Add tests
2017-02-09 17:47:04 -08:00

89 lines
1.5 KiB
TypeScript

// Repro from #13830
type Constructor<T> = new(...args: any[]) => T;
class A {
public pb: number = 2;
protected ptd: number = 1;
private pvt: number = 0;
}
function mixB<T extends Constructor<{}>>(Cls: T) {
return class extends Cls {
protected ptd: number = 10;
private pvt: number = 0;
};
}
function mixB2<T extends Constructor<A>>(Cls: T) {
return class extends Cls {
protected ptd: number = 10;
};
}
const
AB = mixB(A),
AB2 = mixB2(A);
function mixC<T extends Constructor<{}>>(Cls: T) {
return class extends Cls {
protected ptd: number = 100;
private pvt: number = 0;
};
}
const
AB2C = mixC(AB2),
ABC = mixC(AB);
const
a = new A(),
ab = new AB(),
abc = new ABC(),
ab2c = new AB2C();
a.pb.toFixed();
a.ptd.toFixed(); // Error
a.pvt.toFixed(); // Error
ab.pb.toFixed();
ab.ptd.toFixed(); // Error
ab.pvt.toFixed(); // Error
abc.pb.toFixed();
abc.ptd.toFixed(); // Error
abc.pvt.toFixed(); // Error
ab2c.pb.toFixed();
ab2c.ptd.toFixed(); // Error
ab2c.pvt.toFixed(); // Error
// Repro from #13924
class Person {
constructor(public name: string) {}
protected myProtectedFunction() {
// do something
}
}
function PersonMixin<T extends Constructor<Person>>(Base: T) {
return class extends Base {
constructor(...args: any[]) {
super(...args);
}
myProtectedFunction() {
super.myProtectedFunction();
// do more things
}
};
}
class Customer extends PersonMixin(Person) {
accountBalance: number;
f() {
}
}