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Added warning for a && b || c

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This commit is contained in:
Vidar Holen
2012-11-04 22:14:47 -08:00
parent 67d27ea42d
commit 69183f6609
2 changed files with 10 additions and 1 deletions
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9
Shpell/Analytics.hs
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@@ -19,7 +19,8 @@ basicChecks = [
checkForInLs,
checkMissingForQuotes,
checkUnquotedExpansions,
checkRedirectToSame
checkRedirectToSame,
checkShorthandIf
]
modifyMap = modify
@@ -128,4 +129,10 @@ checkRedirectToSame s@(T_Pipeline _ list) =
checkRedirectToSame _ = return ()
prop_checkShorthandIf = verify checkShorthandIf "[[ ! -z file ]] && scp file host || rm file"
prop_checkShorthandIf2 = verifyNot checkShorthandIf "[[ ! -z file ]] && { scp file host || echo 'Eek'; }"
checkShorthandIf (T_AndIf id _ (T_OrIf _ _ _)) =
addNoteFor id $ Note InfoC "Note that A && B || C is not if-then-else. C may run when A is true."
checkShorthandIf _ = return ()
lt x = trace (show x) x

2
badcase/poormansif Normal file
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@@ -0,0 +1,2 @@
# When the network goes down, the backup gets deleted
[[ ! -z backup ]] && scp backup host: || rm backup