26 Jul
2009
26 Jul
'09
12:09 p.m.
I haven't seen anyone else claim to use the current more liberal syntax for fields, but I know that I do rather extensively. I would consider:
Just A {a = 1}
To be confusing, but if you simply omit the space:
Just A{a = 1}
I now find that perfectly clear and unambiguous.
I did consider allowing that, perhaps by making "Foo{" a single token, but I couldn't see a clean way to do it.
Just to be explicit, I think Just A{...} is clear for me, but really wouldn't want the parser to depend on the presence or absence of spaces - that's just not very Haskell like. Thanks, Neil