Error message: visible type application of constructor/variable that is not in scope
If I use an identifier not in scope:
$ ghci -ignore-dot-ghci
GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help
Prelude> p
<interactive>:1:1: error: Variable not in scope: p
Prelude> P
<interactive>:2:1: error: Data constructor not in scope: P
Using visible type application:
$ ghci -ignore-dot-ghci -XTypeApplications
GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help
Prelude> p @Int
<interactive>:1:1: error:
• Cannot apply expression of type ‘t0’
to a visible type argument ‘Int’
• In the expression: p @Int
In an equation for ‘it’: it = p @Int
Prelude> P @Int
<interactive>:2:1: error:
• Cannot apply expression of type ‘t0’
to a visible type argument ‘Int’
• In the expression: P @Int
In an equation for ‘it’: it = P @Int
I would prefer these error messages to be the same as the first two: thoughts?
Trac metadata
Trac field | Value |
---|---|
Version | 8.0.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |