@psalm-allow-private-mutation

The @psalm-allow-private-mutation tag allows a private-scope mutation of an otherwise immutable property. It is defined by the static analyzer Psalm.

Parsing a @psalm-allow-private-mutation tag produces a AllowPrivateMutationTag instance. Being a pure marker, it adds nothing beyond the $name and optional $description every Tag already carries.

The same AllowPrivateMutationTag is produced by @phpstan-allow-private-mutation, which restate the same concept for their respective tools.

See Psalm's supported annotations.