[Bug] Initializing a service does not work in ember glimmer components

🐞 Describe the Bug

Initializing a service does not work in ember glimmer components

🔬 Minimal Reproduction

app/initializers/pandaui.js

export function initialize( application ) {
  application.inject('route', 'pandaui', 'service:pandaui');
  application.inject('component', 'pandaui', 'service:pandaui');
  application.inject('controller', 'pandaui', 'service:pandaui');
}

export default {
  initialize
};

app/pods/pandaui/service.js

import Service from '@ember/service';

export default class PandauiService extends Service {
  block() {
    ...
  }

  unblock() {
    ...
  }
}

app/components/test-form/component.js

import Component from '@glimmer/component';
import { action } from '@ember/object';

export default class TestFormComponent extends Component {
  @action
  testPandaService() {
    this.pandaui.block() **ERROR: Cannot read property 'block' of undefined**
  }
}

😕 Actual Behavior

The line this.pandaui.block() throws Cannot read property 'block' of undefined When I explicitly inject the service like below it works.

import { inject as service } from '@ember/service';
@service pandaui;

🤔 Expected Behavior

When I initialize a service, I think it is not needed to inject explicitly

Am i missing something? OR its a bug?

I think according to the doc that is all I need to do https://guides.emberjs.com/release/applications/initializers/#toc_application-initializers

🌍 Environment

• Ember: - 3.26.0
• Node.js/npm: - 10.16.3
• OS: - MacOS darwin x64
• Browser: - Chrome 89.0.4389.128

[bertdeblock]

Implicit injections should work, but not for Glimmer components (which is by design, mentioned here). The example in the guides shows an implicit injection for routes, so even though deprecated, that example is still correct AFAICT.

EDIT: Created https://github.com/ember-learn/guides-source/issues/1684.

[rinoldsimon]

I’m referring to the guide https://guides.emberjs.com/v3.26.0/applications/initializers/ (3.26.0) - which has implicit injection in the example.

According to the above discussions, implicit injection is not working in 3.26 and it has been deprecated in 3.26? Correct? So the guide for 3.26 https://guides.emberjs.com/v3.26.0/applications/initializers/ should not have that example? Correct?