noImplicitThis codefix should account for static functions

Search Terms

codefix static this noImplicitThis

Suggestion

If a function is used as the initializer of a static property declaration, should the type of its this added by the --noImplicitThis codefix include typeof?

See discussion in #31138.

Use Cases

Static methods are arguably more likely to be called with the static class as their this scope in common practice. This would more accurately reflect that behavior.

Examples

const returnThisMember = function ([| |]) {
    return this.member;
}

class Container {
    member = "sample";
    static returnThisMember = returnThisMember;
};

Right now [| |] just becomes this: Container.

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

Inizia con il noImplicitThis codefix e la discussione in #31138, quindi segui il modo in cui una funzione usata come inizializzatore di una proprietà statica riceve il proprio tipo this. Usa l'esempio Container per verificare che il tipo suggerito tenga conto dell'ambito statico della classe, incluso typeof dove appropriato.