-- Utilities for combining source spans
comb2 :: Located a -> Located b -> SrcSpan
-comb2 = combineLocs
+comb2 a b = a `seq` b `seq` combineLocs a b
comb3 :: Located a -> Located b -> Located c -> SrcSpan
-comb3 a b c = combineSrcSpans (getLoc a) (combineSrcSpans (getLoc b) (getLoc c))
+comb3 a b c = a `seq` b `seq` c `seq`
+ combineSrcSpans (getLoc a) (combineSrcSpans (getLoc b) (getLoc c))
comb4 :: Located a -> Located b -> Located c -> Located d -> SrcSpan
-comb4 a b c d = combineSrcSpans (getLoc a) $ combineSrcSpans (getLoc b) $
- combineSrcSpans (getLoc c) (getLoc d)
+comb4 a b c d = a `seq` b `seq` c `seq` d `seq`
+ (combineSrcSpans (getLoc a) $ combineSrcSpans (getLoc b) $
+ combineSrcSpans (getLoc c) (getLoc d))
-- strict constructor version:
{-# INLINE sL #-}