Abstract properties (hooks) in traits

Description

At the moment such code does not work (8.4 and 8.5/master), which does not seem very logical:

<?php

trait Example
{
    abstract public string $property {
        get; 
    }
}

class ExampleImpl
{
    use Example;
    
    public function __construct(
        public readonly string $property,
    ) {}
}

Produces:

Fatal error: ExampleImpl and Example define the same hooked property ($property) in the composition of ExampleImpl. Conflict resolution between hooked properties is currently not supported. Class was composed

https://3v4l.org/UYnbo

According to RFC (https://wiki.php.net/rfc/property-hooks#interaction_with_traits), traits do not actually support properties, but at least such primitive conflict resolution would be nice to have.

P.S. Is it worth writing to internals for RFC if there is no way to send a PR?

提供されている trait と hooked property の再現例から始め、続いて trait interaction に関する property-hooks RFC のセクションを読んでください。trait の合成が abstract hooked property と implementing constructor-promoted property をどのように扱うかを追跡してください。報告された競合なしで例を合成でき、意図された property-hook の動作が維持されていれば完了です。