{
{-# LANGUAGE BangPatterns #-} -- required for versions of Happy before 1.18.6
-{-# OPTIONS -Wwarn -w -XNoMonomorphismRestriction #-}
--- The NoMonomorphismRestriction deals with a Happy infelicity
--- With OutsideIn's more conservativ monomorphism restriction
--- we aren't generalising
--- notHappyAtAll = error "urk"
--- which is terrible. Switching off the restriction allows
--- the generalisation. Better would be to make Happy generate
--- an appropriate signature.
-
+{-# OPTIONS -Wwarn -w #-}
-- The above warning supression flag is a temporary kludge.
-- While working on this module you are encouraged to remove it and fix
-- any warnings in the module. See
| RATIONAL { sL (getLoc $1) (HsOverLit $! mkHsFractional (getRATIONAL $1) placeHolderType) }
-- N.B.: sections get parsed by these next two productions.
- -- This allows you to write, e.g., '(+ 3, 4 -)', which isn't correct Haskell98
- -- (you'd have to write '((+ 3), (4 -))')
+ -- This allows you to write, e.g., '(+ 3, 4 -)', which isn't
+ -- correct Haskell (you'd have to write '((+ 3), (4 -))')
-- but the less cluttered version fell out of having texps.
| '(' texp ')' { LL (HsPar $2) }
| '(' tup_exprs ')' { LL (ExplicitTuple $2 Boxed) }
-- Note [Parsing sections]
-- ~~~~~~~~~~~~~~~~~~~~~~~
-- We include left and right sections here, which isn't
- -- technically right according to Haskell 98. For example
- -- (3 +, True) isn't legal
+ -- technically right according to the Haskell standard.
+ -- For example (3 +, True) isn't legal.
-- However, we want to parse bang patterns like
-- (!x, !y)
-- and it's convenient to do so here as a section