Support _defaults key in service.yml files for public, tags and autowire settings

Created on 20 December 2018, almost 6 years ago
Updated 25 January 2023, almost 2 years ago

Problem/Motivation

Symfony allows you to specify _defaults key in your services.yml file. This allows you to specify defaults for all of your services. See https://symfony.com/doc/current/service_container.html

In Symfony it often looks like

# config/services.yaml
services:
    # default configuration for services in *this* file
    _defaults:
        autowire: true      # Automatically injects dependencies in your services.
        autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
        public: false       # Allows optimizing the container by removing unused services; this also means
                            # fetching services directly from the container via $container->get() won't work.
                            # The best practice is to be explicit about your dependencies anyway.

    # makes classes in src/ available to be used as services
    # this creates a service per class whose id is the fully-qualified class name
    App\:
        resource: '../src/*'
        exclude: '../src/{Entity,Migrations,Tests,Kernel.php}'

    # ...

Whilst autoconfigure is not relevant yet it would be nice for a module to be able to declare all of its services as public: false (if for example it wants to prevent the service locator pattern - yes this is hard is Drupal because plugin managers and events don't work with them but maybe in the future) and autowire will be supported by #3021803: Document and add tests for service autowiring β†’ .

Proposed resolution

Implement this by copying code from YamlFileLoader once #3021803: Document and add tests for service autowiring β†’ has landed.

Remaining tasks

User interface changes

None

API changes

@todo

Data model changes

None

Release notes snippet

@todo

πŸ“Œ Task
Status

Fixed

Version

9.5

Component
BaseΒ  β†’

Last updated about 14 hours ago

Created by

πŸ‡¬πŸ‡§United Kingdom alexpott πŸ‡ͺπŸ‡ΊπŸŒ

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  • πŸ‡©πŸ‡ͺGermany donquixote

    74dbb97f - Remove support for autoconfigure and bind for now.

    Do we have a follow-up issue to re-add the "bind"?
    I think it would be quite useful to have :)

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