Unused type parameters should be checked by --noUnusedParameters, not --noUnusedLocals. #21167
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Outdated suggestions cannot be applied.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.
Fixes #20568.
Most of the existing test cases of unused type parameters passed both
--noUnusedParameters
and--noUnusedLocals
. A few test cases passed only--noUnusedLocals
and failed after I changed the code; I changed them to pass only--noUnusedParameters
. I also added the two missing contexts of type parameters (method, lambda) totests/cases/compiler/unusedTypeParametersWithUnderscore.ts
and used this test case as the basis of new test cases testing specifically that unused type parameters are checked with--noUnusedParameters
alone and not with--noUnusedLocals
alone.