Hi, I'm using phoityne-vscode to debug my code. I'm trying to implement a monadic parser on top of a free applicative one . I have an issue with some, basically it works but it always "forgets" to parse an element in the list.
I'm a bit lost with phoityne, I put breakpoint but it's hard to know what's happening since all the variable are hidden, due to the lazyness constraint. However I have 2 issues which annoy me with the debugger :
since everything is generic (eg Schema a) I can't show the content of the variable even if they are evaluated. Isn't there some kind of binary representation of things ?
and in the worst case, isn't it possible to print the actual type of a variable ? I mean in debugging mode Haskell "knows" what is the type of the variable, am I wrong ?
Hi, I'm using phoityne-vscode to debug my code. I'm trying to implement a monadic parser on top of a free applicative one . I have an issue with some, basically it works but it always "forgets" to parse an element in the list.
I'm a bit lost with phoityne, I put breakpoint but it's hard to know what's happening since all the variable are hidden, due to the lazyness constraint. However I have 2 issues which annoy me with the debugger :
since everything is generic (eg Schema a) I can't show the content of the variable even if they are evaluated. Isn't there some kind of binary representation of things ?
and in the worst case, isn't it possible to print the actual type of a variable ? I mean in debugging mode Haskell "knows" what is the type of the variable, am I wrong ?
you can use Typeable for that, but you need to "pollute" your code with it
Hi, I'm using phoityne-vscode to debug my code. I'm trying to implement a monadic parser on top of a free applicative one . I have an issue with
some, basically it works but it always "forgets" to parse an element in the list.I'm a bit lost with phoityne, I put breakpoint but it's hard to know what's happening since all the variable are hidden, due to the lazyness constraint. However I have 2 issues which annoy me with the debugger :
Schema a) I can't show the content of the variable even if they are evaluated. Isn't there some kind of binary representation of things ?Vincent L said:
you can use
Typeablefor that, but you need to "pollute" your code with itI'm not familiar with whether there's some debug info that you can get from ghc
thank you, will give it a try next time I have to debug code