:type-at doesn't work when :load-ing with module name instead of file path
After running
stack new something
cd something
we have a file in src/Lib.hs with the contents:
module Lib
( someFunc
) where
someFunc :: IO ()
someFunc = putStrLn "someFunc"
If we start stack ghci
, we can have the following session showing the errors:
> :set +c
> :l Lib
[1 of 1] Compiling Lib ( /home/jol/work-for/me/something/src/Lib.hs, interpreted )
Ok, one module loaded.
Collecting type info for 1 module(s) ...
> :type-at Lib 6 12 6 20
<no location info>: error: not an expression: ‘’
> :type-at src/Lib.hs 6 12 6 20
Couldn't guess that module name. Does it exist?
If we had done :l src/Lib.hs
instead, then we can use the filepath like the following, but still not the module name:
> :set +c
> :l src/Lib.hs
[1 of 1] Compiling Lib ( src/Lib.hs, interpreted )
Ok, one module loaded.
Collecting type info for 1 module(s) ...
> :type-at Lib 6 12 6 20
<no location info>: error: not an expression: ‘’
> :type-at src/Lib.hs 6 12 6 20
:: String -> IO ()
Trac metadata
Trac field | Value |
---|---|
Version | 8.2.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |