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@real_ate/fake-embroider-util

v1.12.0

Published

Utilities for app and addon authors.

Downloads

12

Readme

@embroider/util

Utilities to help apps and addons with Embroider support.

Compatibility

  • Ember.js v3.13 or above
  • Ember CLI v2.13 or above
  • Node.js v10 or above

Installation

ember install @embroider/util

The Utilities

ensureSafeComponent

This function is intended to help addon authors who still need to support Ember < 3.25. In all other cases, instead of using this you should directly pass components around as values (not as strings) and invoke them directly with angle brackets (not the {{component}} helper).

For the full explanation of why and how you would use this, see the Addon Author Guide.

Example usage in Javascript:

import { ensureSafeComponent } from '@embroider/util';
import Component from '@glimmer/component';
import DefaultTitleComponent from './default-title';

export default class extends Component {
  get title() {
    return ensureSafeComponent(this.args.title || DefaultTitleComponent, this);
  }
}
<this.title />

Example usage in a template:

{{#let
  (ensure-safe-component (or @title (component 'default-title')))
  as |Title|
}}
  <Title />
{{/let}}

The first argument is allowed to be:

  • a string. If we see a string, we will emit a deprecation warning because passing components-as-strings doesn't work safely under Embroider with staticComponents enabled. We will return a value that is safe to invoke (via angle brackets) on your current Ember version.
  • a curried component definition (which is the kind of value you receive when someone does <YourComponent @customThing={{component "fancy"}}/>). These are returned unchanged, because they're always safe to invoke.
  • a component class, in which case if your ember version does not yet support directly invoking component classes, we will convert it to a curried component definition for you.

In the Javascript version, you must pass a second argument that is any object with an owner (a Component instance works great).

Glint usage

If you are using Glint and environment-ember-loose, you can add all the macros to your app at once by adding

import type { EmbroiderUtilRegistry } from "@embroider/util";

to your app's e.g. types/glint.d.ts file, and making sure your registry extends from EmbroiderMacrosRegistry:

declare module '@glint/environment-ember-loose/registry' {
  export default interface Registry
    extends EmbroiderUtilRegistry, /* other registries here */ {
      // ...
    }
}

Contributing

See the Contributing guide for details.

License

This project is licensed under the MIT License.