nil candidates without any other errors #29
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kerscher
changed the title
nil candidates without any other errors
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I don't have environment to try right now, sorry. In the screenshot, |
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Can you check what is written in |
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I have the same problem. The haskell code: import System.Random
import System.IO
import Control.Monad(when)
main :: IO ()
main = do
gen <- getStdGen
askForNumber gen
askForNumber :: StdGen -> IO ()
askForNumber gen = do
let (randNumber, newGen) = randomR (1,10) gen :: (Int, StdGen)
putStr "Which number in the range from 1 to 10 am I thinking of? "
hFlush stdout
numberString <- getLine
when (not $ null numberString) $ do
let number = read numberString
if randNumber == number
then putStrLn "You are correct!"
else putStrLn $ "Sorry, it was " ++ show randNumber
askForNumber newGenThe output of The output of GHC Debug: |
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I could not reproduce the problem. |
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Thank you for your answer. I managed to get candidates by adding in the beginning. However, I still cannot complete for functions that are defined in this document. |
It is just not implemented. #31 (comment) |
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I still seem to be having this issue. Any ideas what the problem may be? |
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Hmm. simply running (mapc 'company-ghc--source-keywords ghc-module-names)Fixed the issue. When is this function supposed to be called? |
Normally, it is called just before displaying completion candidates. |
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I'm having the same error as the OP. Completions actually can complete though, although the |
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The recommended |
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Is there any reproducible steps from scratch I can try? |
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@iquiw I can give you the repository I tried this with initially. Its located here: https://github.com/IvanMalison/dotfiles/tree/master/dotfiles/xmonad Note that this is a subdirectory of the main repository. Everything should compile correctly with stack. |
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@IvanMalison Thank you! I will give it a try. |
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@iquiw One thing that is worth noting is that after I fixed this once with my mapc incantation, the problem seemed to be fixed forever... |
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@freckletonj did you find the same thing? |
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@IvanMalison strangely no. I show |
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@IvanMalison I just tried, but could not build with stack. |
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@iquiw Oops, that sha no longer exists bc i did a force push. I set the correct sha just now |
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@IvanMalison Still could not build. Commits of |
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@IvanMalison I could get completion candidates in the Here is the init.el I use. (require 'package)
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
(package-initialize)
(add-to-list 'package-selected-packages 'company)
(add-to-list 'package-selected-packages 'haskell-mode)
(add-to-list 'package-selected-packages 'ghc-mod)
(add-to-list 'package-selected-packages 'company-ghc)
(package-install-selected-packages)
(global-company-mode)
(add-hook 'haskell-mode-hook 'ghc-init)
(add-to-list 'company-backends 'company-ghc) |
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@iquiw Yeah I am also able to get completions sometimes, but not when I setup on a new machine. no Idea whats going on there. |
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Upon running
company-ghc-diagnoseall modules get loaded, but no candidates appear, andghc-modreports no errors either:Further investigation shows that
ghc-mod browsecan see the symbols exported without problems:On a side-note,
ghc-mod bootshows all modules but very few names compared to whatghc-mod browsedoes. However, none of those functions show up as candidates in the diagnose!You can use the repository https://github.com/kerscher/preliminaries to try to reproduce.
The library is not on Hackage, yet.
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