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[types] Ensure we export symbols that are appropriately types, values or both

See original GitHub issue

Which package(s) does this problem pertain to?

What are instructions we can follow to reproduce the issue?

example repro case: I want to acquire a type that represents an instance of the ember-data store.

Today I have to do something like

type Store = InstanceType<typeof Store>;

This is because Store represented as only a value. Passing it through the InstanceOf<typeof x> effectively converts the value to a factory type, and then gets the instance produced by the factory.

Now about that bug. What did you expect to see?

All services, etc… should behave just like native classes. No type query or instanceof should be required for use

CC: @runspired

Issue Analytics

State:
Created 4 years ago
Reactions:1
Comments:19 (19 by maintainers)

Top GitHub Comments

2reactions

mike-northcommented, Jul 18, 2019

Since this has been in the way of ember-data’s TypeScript conversion and my team is sort of held up (or having to take on tech debt) until this is fixed, I’ll take the time to write this up and circulate it amongst typed-ember core.

We should then ensure that PRs opened against @types/{rsvp,ember*,qunit} align with these conventions

2reactions

dfreemancommented, Jul 18, 2019

Agreed on all counts. I think a page in the docs that’s maybe some combination of “specific guidelines for updating @types/ember*” + “general guide for writing type declarations” would be super useful as a resource.

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