Cli.pair_fault: def of cli@0.2.0.0
Import: import cli@0.2.0.0/cli.bend as Cli
Lines 4117-4124 of cli@0.2.0.0/cli.bend: https://jend.leeeet.dev/read.txt?path=cli@0.2.0.0/cli.bend&start_line=4117&end_line=4124

import Base

def pair_fault(+later: ArgInfo, earlier: Maybe<&2, ArgInfo>,
    groups: List<&2, String>) -> Maybe<&2, ScanFault>:
  match earlier:
    case None{}: None{}
    case Some{+prior}:
      Bool.pick(Maybe<&2, ScanFault>,
        pair_conflicts(later, prior, groups),
        Some{E07{arg_display(later), arg_display(prior)}}, None{})

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=cli@0.2.0.0/cli.bend&name=ArgInfo
  https://jend.leeeet.dev/definition.txt?path=cli@0.2.0.0/cli.bend&name=ScanFault
  https://jend.leeeet.dev/definition.txt?path=cli@0.2.0.0/cli.bend&name=arg_display
  https://jend.leeeet.dev/definition.txt?path=cli@0.2.0.0/cli.bend&name=pair_conflicts