Use lower bound of index types as their constraints when they are applied to indexed access types with non-generic root object type #60091
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
closes #21760
Even though
keyof SomeMap[T]
is deferred and generic, the actual possible keys are known as long asSomeMap
is not generic itself. SuchSomeMap
has a "closed shape" so it feels it's safe to get a lower bound of that type as its constraint.