Actually sweet.js just landed infix macros [1] so you can match on syntax that comes before the macro name. This just happened last week so we haven't updated t

Actually sweet.js just landed infix macros [1] so you can match on syntax that comes before the macro name. This just happened last week so we haven't updated the docs or made an official release just yet. [1] https://github.com/mozilla/sweet.js/pull/162 https://github.com/mozilla/sweet.js/pull/162