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Diffstat (limited to 'src/GF/Grammar/PatternMatch.hs')
| -rw-r--r-- | src/GF/Grammar/PatternMatch.hs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/GF/Grammar/PatternMatch.hs b/src/GF/Grammar/PatternMatch.hs index c7205dcaf..7635e6fa1 100644 --- a/src/GF/Grammar/PatternMatch.hs +++ b/src/GF/Grammar/PatternMatch.hs @@ -105,9 +105,10 @@ tryMatch (p,t) = do return (concat matches) (PRep p1, ([],K s, [])) -> checks [ - trym (foldr (const (PSeq p1)) (PString "") [1..n]) t' | n <- [0 .. length s] - ] - + trym (foldr (const (PSeq p1)) (PString "") + [1..n]) t' | n <- [0 .. length s] + ] >> + return [] _ -> prtBad "no match in case expr for" t isInConstantForm :: Term -> Bool |