Adjust AST to capture additional parens around a context
At the moment the parser strips redundant parens around a context when constructing the AST. So the following two definitions would end up with the same AST.
foo :: (Show a) => a -> String
foo' :: ((Show a)) => a -> String
This causes roundtripping of an AST via ppr
to fail, and adds complexity to the API Annotations.
Trac metadata
Trac field | Value |
---|---|
Version | 8.0.1 |
Type | Task |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |