[Haskell-cafe] Impact of "try" on Parsec performance

Antoine Latter aslatter at gmail.com
Sat Mar 3 06:12:30 CET 2012

On Fri, Mar 2, 2012 at 10:35 PM, Erik de Castro Lopo
<mle+hs at mega-nerd.com> wrote:
> Omari Norman wrote:
>> So my question is: what is the practical impact of using try?
> My experience is based mostly on trying to improve the error location
> reporting in Ben Lippmeier's DDC compiler. What I found was that
> removing Parsec.try's almost always resulted in the parser generating
> better location information.

Roman Cheplyaka made some tweaks to 'try' error reporting in parsec
3.1.2, so this might be different now.


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