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tests/cases/compiler/mixinPrivateAndProtected.ts(46,3): error TS2445: Property 'ptd' is protected and only accessible within class 'A' and its subclasses.
tests/cases/compiler/mixinPrivateAndProtected.ts(47,3): error TS2341: Property 'pvt' is private and only accessible within class 'A'.
tests/cases/compiler/mixinPrivateAndProtected.ts(49,4): error TS2339: Property 'pb' does not exist on type 'never'.
The intersection 'mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(50,4): error TS2339: Property 'ptd' does not exist on type 'never'.
The intersection 'mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(51,4): error TS2339: Property 'pvt' does not exist on type 'never'.
The intersection 'mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(53,5): error TS2339: Property 'pb' does not exist on type 'never'.
The intersection 'mixC<{ new (...args: any[]): mixB<typeof A>.(Anonymous class); prototype: mixB<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(54,5): error TS2339: Property 'ptd' does not exist on type 'never'.
The intersection 'mixC<{ new (...args: any[]): mixB<typeof A>.(Anonymous class); prototype: mixB<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(55,5): error TS2339: Property 'pvt' does not exist on type 'never'.
The intersection 'mixC<{ new (...args: any[]): mixB<typeof A>.(Anonymous class); prototype: mixB<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(57,6): error TS2339: Property 'pb' does not exist on type 'never'.
The intersection 'mixC<{ new (...args: any[]): mixB2<typeof A>.(Anonymous class); prototype: mixB2<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB2<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(58,6): error TS2339: Property 'ptd' does not exist on type 'never'.
The intersection 'mixC<{ new (...args: any[]): mixB2<typeof A>.(Anonymous class); prototype: mixB2<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB2<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
tests/cases/compiler/mixinPrivateAndProtected.ts(59,6): error TS2339: Property 'pvt' does not exist on type 'never'.
The intersection 'mixC<{ new (...args: any[]): mixB2<typeof A>.(Anonymous class); prototype: mixB2<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB2<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
==== tests/cases/compiler/mixinPrivateAndProtected.ts (11 errors) ====
// 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
~~~
!!! error TS2445: Property 'ptd' is protected and only accessible within class 'A' and its subclasses.
a.pvt.toFixed(); // Error
~~~
!!! error TS2341: Property 'pvt' is private and only accessible within class 'A'.
ab.pb.toFixed();
~~
!!! error TS2339: Property 'pb' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
ab.ptd.toFixed(); // Error
~~~
!!! error TS2339: Property 'ptd' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
ab.pvt.toFixed(); // Error
~~~
!!! error TS2339: Property 'pvt' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
abc.pb.toFixed();
~~
!!! error TS2339: Property 'pb' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixC<{ new (...args: any[]): mixB<typeof A>.(Anonymous class); prototype: mixB<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
abc.ptd.toFixed(); // Error
~~~
!!! error TS2339: Property 'ptd' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixC<{ new (...args: any[]): mixB<typeof A>.(Anonymous class); prototype: mixB<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
abc.pvt.toFixed(); // Error
~~~
!!! error TS2339: Property 'pvt' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixC<{ new (...args: any[]): mixB<typeof A>.(Anonymous class); prototype: mixB<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
ab2c.pb.toFixed();
~~
!!! error TS2339: Property 'pb' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixC<{ new (...args: any[]): mixB2<typeof A>.(Anonymous class); prototype: mixB2<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB2<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
ab2c.ptd.toFixed(); // Error
~~~
!!! error TS2339: Property 'ptd' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixC<{ new (...args: any[]): mixB2<typeof A>.(Anonymous class); prototype: mixB2<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB2<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
ab2c.pvt.toFixed(); // Error
~~~
!!! error TS2339: Property 'pvt' does not exist on type 'never'.
!!! error TS2339: The intersection 'mixC<{ new (...args: any[]): mixB2<typeof A>.(Anonymous class); prototype: mixB2<any>.(Anonymous class); } & typeof A>.(Anonymous class) & mixB2<typeof A>.(Anonymous class) & A' was reduced to 'never' because property 'pvt' exists in multiple constituents and is private in some.
// 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() {
}
}
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