[Bug][Decorators] Type is not assignable to type 'void'.

[CarsonF]

TypeScript Version:

1.8.10

Code

function decorator<P>() {
  return (component: React.ComponentClass<P>) => {
    return component;
  }
}

class Foo extends React.Component<any, any> { }
export const WrappedFoo = decorator()(Foo); // Works

@decorator()
class Foo extends React.Component<any, any> { } // Fails

error TS1238: Unable to resolve signature of class decorator when called as an expression.
  Type 'ComponentClass<{}>' is not assignable to type 'void'.

Also specifying P gives a similar error:

@decorator<FooProps>()
class Foo extends React.Component<FooProps, any> { }

error TS1238: Unable to resolve signature of class decorator when called as an expression.
  Type 'ComponentClass<FooProps>' is not assignable to type 'void'.

I've been banging my head against this for a couple hours now. Maybe I'm missing something? It seems pretty straight forward though.

[mhegazy]

I can not get this to reproduce locally with latest typescript@next and latest definition on definitely typed.

[mhegazy]

Looks like #9365 and this issue are about the same problem. i would like to keep one to track this, so closing in favor of #9365