I suppose the question that this error is asking you is: when
`getWindowAttributes` throws an error, how should `floatLocation` respond?
Perhaps returning some default -- like `(0, RationalRect 0 0 1 1)` or
something -- will be sufficient? I don't know how `floatLocation` gets
used, so I don't know how dangerous a default that would be.
Do we need to change the type of `floatLocation` to admit that it may not
know the right answer?
~d
On Sat, Sep 10, 2016 at 3:09 PM, Adam Sjøgren
Daniel writes:
The simplest thing will be to wrap just the call to `getWindowAttributes`, if that's the one you expect to fail.
It is one I observe failing, yes.
It is not conveniently possible to wrap `X` actions; so instead, something like
withDisplay $ \d -> do ws <- gets windowset ewa <- io $ try (getWindowAttributes d w) case ewa of Left e -> io (putStrLn "HELP! do something!") Right wa -> do let bw = (fromIntegral . wa_border_width) wa {- ... etc. -}
I can't make this construction compile, when I try to change floatLocation to use it, I get errors about a return value being of type X () instead of X (ScreenId, W.RationalRect).
Best regards,
Adam
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