test-repo/changelog_unreleased/javascript/pr-7138.md

Tweak function composition logic for decorators (#7138 by @brainkim)

Because decorators modify the line following, splitting a decorator call’s arguments onto multiple lines can obscure the relationship between the decorator and its intended target, producing less-readable code. Therefore, the function composition logic introduced in #6033 has been changed to exclude decorator calls.

// Input
export class Item {
  @OneToOne(() => Thing, x => x.item)
  thing!: Thing;
}

// Output (Prettier stable)
export class Item {
  @OneToOne(
    () => Thing,
    x => x.item,
  )
  thing!: Thing;
}

// Output (Prettier master)
export class Item {
  @OneToOne(() => Thing, x => x.item)
  thing!: Thing;
}