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Support 'static' to be used with 'abstract' and generic type #10603
Description
TypeScript Version: 2.0.0
Code
abstract Class BaseClass<T>{
abstract static defaultValue:T;
// ...
}
interface Format{
//...
}
class ClassA extends BaseClass<Format>{
static defaultValue:Format = { ... }
}Expected behavior:
Can define static member in abstract class, so that force child classes contains it.
Such as defaultProps in React.Component
Actual behavior:
Neither interface nor abstract class can achieve this.
Activity
[-]Support 'static' to be used with 'abstract'[/-][+]Support 'static' to be used with 'abstract' and generic type[/+]OliverJAsh commentedon Jun 5, 2017
This is more general than the generic type use case:
For context, I want this feature so I can properly type the static properties on my React class components. The React typings on DefinitelyTyped define a
Componentclass, and aComponentClassinterface which includes the constructor and the static properties such aspropTypes,displayName, anddefaultProps. To type check a class component including its static properties, one has to define a class that extendsComponentand annotate it asComponentClass:If we had the feature requested here, we could consolidate the
ComponentClassinterface and theComponentclass into an abstract class with static properties.mhegazy commentedon Aug 28, 2017
looks like a duplicate of #14600
mhegazy commentedon Sep 12, 2017
Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.