-
David Feuer authored
Instead of pulling a token and looking for `'('` or `')'`, just look for the character itself. This prevents us from lexing every single item twice, once to see if it's a left parenthesis and once to actually parse it. Partially fixes #12665 Make parens faster more aggressively * Strip spaces before parsing, so we never have to strip the same spaces twice. * String parsers together manually, to try to avoid unnecessary closure creation. Test Plan: Validate Reviewers: austin, hvr, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2630 GHC Trac Issues: #12665
bef7e784