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;check: uniqueleafnames: short circuit to avoid wasted work

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Simon Michael 2021-01-09 18:59:10 -08:00
parent b96713a584
commit 6931eec3ce
1 changed files with 5 additions and 3 deletions
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8
hledger/Hledger/Cli/Commands/Check/Uniqueleafnames.hs
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@ -23,9 +23,11 @@ import Text.Printf (printf)
journalCheckUniqueleafnames :: Journal -> Either String ()
journalCheckUniqueleafnames j = do
-- find all duplicate leafnames, and the full account names they appear in
let dupes = finddupes $ journalLeafAndFullAccountNames j
-- report the first posting that references one of them (and its position), for now
sequence_ $ map (checkposting dupes) $ journalPostings j
case finddupes $ journalLeafAndFullAccountNames j of
[] -> Right ()
dupes ->
-- report the first posting that references one of them (and its position), for now
sequence_ $ map (checkposting dupes) $ journalPostings j
finddupes :: (Ord leaf, Eq full) => [(leaf, full)] -> [(leaf, [full])]
finddupes leafandfullnames = zip dupLeafs dupAccountNames