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Count CFEExit as control flow for the purposes of finding dominators

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Vidar Holen 2023-02-04 13:19:27 -08:00
parent 2842ce97b8
commit c05380d518
1 changed files with 5 additions and 2 deletions
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7
src/ShellCheck/CFG.hs
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@ -192,7 +192,7 @@ buildGraph params root =
base base
idToRange = M.fromList mapping idToRange = M.fromList mapping
isRealEdge (from, to, edge) = case edge of CFEFlow -> True; _ -> False isRealEdge (from, to, edge) = case edge of CFEFlow -> True; CFEExit -> True; _ -> False
onlyRealEdges = filter isRealEdge edges onlyRealEdges = filter isRealEdge edges
(_, mainExit) = fromJust $ M.lookup (getId root) idToRange (_, mainExit) = fromJust $ M.lookup (getId root) idToRange
@ -1301,7 +1301,10 @@ findPostDominators mainexit graph = asArray
reversed = grev withExitEdges reversed = grev withExitEdges
postDoms = dom reversed mainexit postDoms = dom reversed mainexit
(_, maxNode) = nodeRange graph (_, maxNode) = nodeRange graph
asArray = array (0, maxNode) postDoms -- Holes in the array cause "Exception: (Array.!): undefined array element" while
-- inspecting/debugging, so fill the array first and then update.
initializedArray = listArray (0, maxNode) $ repeat []
asArray = initializedArray // postDoms
return [] return []
runTests = $( [| $(forAllProperties) (quickCheckWithResult (stdArgs { maxSuccess = 1 }) ) |]) runTests = $( [| $(forAllProperties) (quickCheckWithResult (stdArgs { maxSuccess = 1 }) ) |])