Microsoft/TypeScript
Voir sur GitHubFunction implementation name must be ... (2389) when abstract method is declared again later
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#61 783 ouverte le 29 mai 2025
Domain: Error MessagesHelp WantedPossible Improvement
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Description
🔎 Search Terms
duplicate abstract function declaration, abstract method, missing implementation, abstract method overload
🕗 Version & Regression Information
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about abstract class
⏯ Playground Link
💻 Code
abstract class Foo {
abstract func1(): void;
func2(): string {
// ^? Function implementation name must be 'func1'.(2389)
return 'hi'
}
abstract func1(): void;
}
🙁 Actual behavior
TS error reported for func2, which is valid.
🙂 Expected behavior
TS error reported for func1, which has duplicated abstract declaration.
Additional information about the issue
No response