The initialization order of the Class Accessor Decorator has been changed.

[examan]

🔎 Search Terms

Class Accessor Decorator init addInitializer

🕗 Version & Regression Information

• This changed between versions 5.3.3 and 5.4.2

⏯ Playground Link

https://www.typescriptlang.org/play?ts=5.4.2#code/GYVwdgxgLglg9mABAEwDwDUCGAbEBTAGkQBUALGAZ0QF5FwBrMOAdzAD4AKASkQG8AoREMQAnPFBAikHQcLkB9AG458ALkQBhbJgoUAghAh5dcEQBE8EU5iinimEQHNxqMpSJZceNgVlyhVmBQeAAeUOpaOvqGxhSmFlYiNqYaCMFhruQUHirevnI81Gx8fv7Y4oiK6p74ANylcoHpUAB0mMjIAJJgMLA4MABeeCIc3DTFAv5TiIFx5S3YcI4cAOTtXT192IPDK1z104gAvvv8DcJiElIlh3LOUGOTt1OXkkiKB8-H+V8U4hzKLw8J5fYSKGiVXKfZ5HH7PGCbAG5YHnZ6zODzRbLFYI3p7aGgyoQwF1VG3V7XEl4AmHWFko6ICg2SjAGDGTTaXQGIwmcyWay2EQAJWMIGwUEy7kQNW8BKO9SOZwgnKoxGMUBuwgAAshuKVMDFeYhgBDgDg-gqlQgKBrgjaIWA8MwSOruLUgA

💻 Code

function d<Value, This = unknown>() {
    return (
        _value: ClassAccessorDecoratorTarget<This, Value>,
        context: ClassAccessorDecoratorContext<This, Value>,
    ) => {
        let v: Value;
        context.addInitializer(() => {
            console.log('addInitializer');
        });

        return {
            get() {
                return v;
            },
            set(value) {
                v = value;
            },
            init(value) {
                console.log('init');
                v = value;
                return value;
            },
        } satisfies ClassAccessorDecoratorResult<This, Value>;
    };
}

class Test {
    @d()
    accessor f = false;
}

const test = new Test();

🙁 Actual behavior

console.log order:
init
addInitializer

🙂 Expected behavior

console.log order:
addInitializer
init

Additional information about the issue

No response

[jakebailey]

I think this was intentional? #56606 #56955

[typescript-bot]

This issue has been marked as "Duplicate" and has seen no recent activity. It has been automatically closed for house-keeping purposes.