Add GHC-88333 #511
Open
Add GHC-88333 #511
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
Added new line at end of file |
Bodigrim
reviewed
Feb 2, 2025
|
|
||
| This error is about the incorrect use of type variables in the injectivity condition of type families. | ||
|
|
||
| Type families in Haskell are a way to define type-level functions. An injectivity annotation (| a -> r) is used to specify that for a given input type a, there is exactly one output type r that the type family can map to. |
There was a problem hiding this comment.
Could we please use Markdown backticks here and elsewhere?
Suggested change
| Type families in Haskell are a way to define type-level functions. An injectivity annotation (| a -> r) is used to specify that for a given input type a, there is exactly one output type r that the type family can map to. | |
| Type families in Haskell are a way to define type-level functions. An injectivity annotation (`| a -> r`) is used to specify that for a given input type `a`, there is exactly one output type `r` that the type family can map to. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Documented GHC-8833: TcRnIncorrectTyVarOnLhsOfInjCond