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Changed the uninitialised-variables notification from a fatal error down to a warning

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This commit is contained in:
Neil Brown 2008-02-11 00:56:10 +00:00
parent 18cf66944a
commit c3353d6025
1 changed files with 2 additions and 2 deletions
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4
checks/Check.hs
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@ -143,7 +143,7 @@ showCodeExSet (NormalSet s)
return $ "{" ++ concat (intersperse ", " ss) ++ "}"
-- | Checks that no variable is used uninitialised. That is, it checks that every variable is written to before it is read.
checkInitVar :: forall m. (Monad m, Die m, CSMR m) => Meta -> FlowGraph m UsageLabel -> Node -> m ()
checkInitVar :: forall m. (Monad m, Die m, Warn m, CSMR m) => Meta -> FlowGraph m UsageLabel -> Node -> m ()
checkInitVar m graph startNode
= do startLabel <- checkJust (Just m, "Could not find starting node in the control-flow graph")
(lab graph startNode) >>* writeNode
@ -194,7 +194,7 @@ checkInitVar m graph startNode
-- The read-from set should be a subset of the written-to set:
if filterPlain' v `isSubsetOf` filterPlain' vs then return () else
do vars <- showCodeExSet $ filterPlain' v `difference` filterPlain' vs
dieP (getMeta n) $ "Variable(s) read from are not written to before-hand: " ++ vars
addWarning (getMeta n) $ "Variable(s) read from are not written to before-hand: " ++ vars
checkParAssignUsage :: forall m t. (CSMR m, Die m, MonadIO m, Data t) => t -> m ()
checkParAssignUsage = mapM_ checkParAssign . listify isParAssign