Livewire attributes

ConvertLivewireRuleAttributeRector

Strips Livewire #[Rule('...')] and #[Validate('...')] property attributes and generates a rules(): array method. Three config keys change what it does with messages, overlaps and real-time validation.

Supported shapes and bail conditions

• Handles:
  • String, list-array and keyed-array shapes. #[Validate(['todos' => 'required', 'todos.*' => '...'])] expands to one rules() entry per key.
  • Constructor-form rule objects (new Password(8), new Unique('users'), new Exists('roles')) lower the same as their static-factory counterparts.
  • Maps as: / attribute: to ->label(). When both appear, attribute: wins.
  • Keeps an empty #[Validate] marker on converted properties so wire:model.live real-time validation survives. Opt out with PRESERVE_REALTIME_VALIDATION => false.
• Bails on: hybrid $this->validate([...]) calls (softenable via KEY_OVERLAP_BEHAVIOR), final parent rules() methods, unsupported attribute args, numeric keyed-array keys, and the HasFluentValidation compose conflict, where an ancestor uses the trait and the child carries #[Rule] / #[Validate]. There the trait's getRules() reads only rules(): array, so the attribute is already ignored at runtime, and converting would override the parent's rules() and drop parent-owned fields. Every bail is written to the skip log.

Direct trait use on the class itself is not a bail. The rector merges the attribute rule into a local rules() array, since neither failure mode applies there.

A converted component needs a diff review. The rector verifies the generated rules(): array is syntactically correct; it cannot prove it behaves identically to the source attribute. If the component has no feature test covering validation, read the diff and watch for dropped message: (opt in with MIGRATE_MESSAGES), explicit onUpdate:, or translate: false. All three are logged, and all need manual migration to Livewire's messages(): array hook or project config. A messages: arg (plural, not a Livewire argument) gets its own "likely typo for message:?" entry.