fn conv_left_assoc<'tcx>(
tcx: TyCtxt<'tcx>,
def_id: DefId,
pair: Pair<'_, Rule>,
operand: impl Fn(TyCtxt<'tcx>, DefId, Pair<'_, Rule>) -> ContractExpr<'tcx>,
) -> ContractExpr<'tcx>fn conv_left_assoc<'tcx>(
tcx: TyCtxt<'tcx>,
def_id: DefId,
pair: Pair<'_, Rule>,
operand: impl Fn(TyCtxt<'tcx>, DefId, Pair<'_, Rule>) -> ContractExpr<'tcx>,
) -> ContractExpr<'tcx>