Support arguments binding by name or type in *.services.yml files

Created on 26 January 2023, about 2 years ago

Updated 1 February 2023, about 2 years ago

This seems to be a duplicate of #3108565: Update the Yaml file Loader functionality to simplify service configuration →

Problem/Motivation

Symfony DI allows arguments binding by name or type, using 'services/_defaults/bind' in a *.services.yml file.
https://symfony.com/doc/current/service_container.html#binding-arguments...
This already works in symfony/dependency-injection:4.4, which is used by Drupal 9.5.

However, in Drupal's DI, the 'bind' key is not supported.

It would be useful in Drupal, as pointed out by @longwave in this comment:
#3295542-3: Use logger channel services consistently, instead of the factory object →

The feature was almost added in 📌 Support _defaults key in service.yml files for public, tags and autowire settings Fixed , but then it was removed from the PR to keep the scope limited. I don't know if it ever really worked, perhaps it was just a stub.

Steps to reproduce

Create a module with a *.services.yml file like this:

services:
  _defaults:
    autowire: true
    bind:
      Psr\Log\LoggerInterface: '@logger.channel.mymodule'
      Drupal\Component\DependencyInjection\ContainerInterface: '@service_container'
      Drupal\Core\Config\ConfigFactoryInterface: '@config.factory'
      GuzzleHttp\ClientInterface: '@http_client'
  [..]

It currently won't work:

The configuration key "bind" cannot be used to define a default value in "modules/custom/poc_nextcloud/poc_nextcloud.services.yml". Allowed keys are "public", "tags", "autowire".

Proposed resolution

Support 'services/_defaults/bind' key in YamlFileLoader.
Backport to 9.5.x.

Note that part of this will become obsolete with 📌 Enable service autowiring by adding interface aliases to core service definitions Fixed .
However:

Having this key is still useful for services like module-specific loggers, where autowiring is not an option.
Contrib or custom modules that want to support Drupal versions like 9.5.x, where 📌 Enable service autowiring by adding interface aliases to core service definitions Fixed might not be backported, can use the 'bind' key so they don't have to write individual argument lists per service. See also 📌 Service arguments by name or type in *.services.yml with autowiring Active .