support helper and modifier helpers

[patricklx]

using {{#let (helper ...)}... or {{#let (modifier ...)}} does not work

[chriskrycho]

Hi @patricklx, thanks for filing. Can you elaborate a bit?

• What versions of the Glint packages do you have?
• What is your glint config?
• What is the actual error you are seeing?

[patricklx]

sure:

• version: 0.9.3
• glint config: ember-loose env, nothing else
• the actual error is:
  when I use {{#let (helper "my-helper" as |myhelper|)}{{/let}} then the resolved type of myhelper is any

[patricklx]

btw, i already fixed it myself with this

declare module '@glint/environment-ember-loose/registry' {
  type helper = DirectInvokable<{
    <T extends keyof Registry>(args: EmptyObject, value: T): T extends keyof Registry ? Registry[T] : never
  }>;
  export default interface Registry {
    helper: helper;
    modifier: helper;
  }
}

[chriskrycho]

Very good – thanks! If you’re up for it, a PR adding it to the environment-ember-loose type definitions would be welcome!