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Diffstat (limited to 'compiler/deSugar/Desugar.lhs')
| -rw-r--r-- | compiler/deSugar/Desugar.lhs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/deSugar/Desugar.lhs b/compiler/deSugar/Desugar.lhs index 37a3cf9236..7b008e9aaf 100644 --- a/compiler/deSugar/Desugar.lhs +++ b/compiler/deSugar/Desugar.lhs @@ -378,6 +378,8 @@ switching off EnableRewriteRules. See DsExpr.dsExplicitList. That keeps the desugaring of list comprehensions simple too. + + Nor do we want to warn of conversion identities on the LHS; the rule is precisly to optimise them: {-# RULES "fromRational/id" fromRational = id :: Rational -> Rational #-} |