When using custom prelude, fourmolu often has to guess operator's fixity. This is bad because it messes up code formatting. For example, $ will be infixl 9 operator instead of infixr 0.
This can be detected with -d flag and grepping for Provenance: Nothing and should be fatal to CI step.
When using custom prelude, fourmolu often has to guess operator's fixity. This is bad because it messes up code formatting. For example,
$will beinfixl 9operator instead ofinfixr 0.This can be detected with
-dflag and grepping forProvenance: Nothingand should be fatal to CI step.