From de865a1c13352b239bcbad64a3b70e66a9bcba86 Mon Sep 17 00:00:00 2001 From: Ian Lynagh Date: Wed, 25 Nov 2009 17:18:15 +0000 Subject: [PATCH] Tweak the warning suppression flags used in Lexer --- compiler/parser/Lexer.x | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/compiler/parser/Lexer.x b/compiler/parser/Lexer.x index 85d4d12..fbc4821 100644 --- a/compiler/parser/Lexer.x +++ b/compiler/parser/Lexer.x @@ -31,15 +31,15 @@ -- qualified varids. { -{-# OPTIONS -Wwarn -w #-} --- The above -Wwarn 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 --- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings --- for details --- --- Note that Alex itself generates code with with some unused bindings and --- without type signatures, so removing the flag might not be possible. +-- XXX The above flags turn off warnings in the generated code: +{-# OPTIONS_GHC -fno-warn-unused-matches #-} +{-# OPTIONS_GHC -fno-warn-unused-binds #-} +{-# OPTIONS_GHC -fno-warn-unused-imports #-} +{-# OPTIONS_GHC -fno-warn-missing-signatures #-} +-- But alex still generates some code that causes the "lazy unlifted bindings" +-- warning, and old compilers don't know about it so we can't easily turn +-- it off, so for now we use the sledge hammer: +{-# OPTIONS_GHC -w #-} {-# OPTIONS_GHC -funbox-strict-fields #-} -- 1.7.10.4