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Don't trigger SC2004 for (( $$ ))

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This commit is contained in:
Vidar Holen 2014-09-23 10:27:26 -07:00
parent 38ead0385b
commit b05c12223f
1 changed files with 3 additions and 1 deletions

4
ShellCheck/Analytics.hs

@ -1209,11 +1209,12 @@ prop_checkArithmeticDeref9 = verifyNot checkArithmeticDeref "(( a[foo] ))"
prop_checkArithmeticDeref10= verifyNot checkArithmeticDeref "(( a[\\$foo] ))"
prop_checkArithmeticDeref11= verifyNot checkArithmeticDeref "a[$foo]=wee"
prop_checkArithmeticDeref12= verify checkArithmeticDeref "for ((i=0; $i < 3; i)); do true; done"
prop_checkArithmeticDeref13= verifyNot checkArithmeticDeref "(( $$ ))"
checkArithmeticDeref params t@(TA_Expansion _ [T_DollarBraced id l]) =
unless (isException $ bracedString l) getWarning
where
isException [] = True
isException s = any (`elem` "/.:#%?*@") s || isDigit (head s)
isException s = any (`elem` "/.:#%?*@$") s || isDigit (head s)
getWarning = fromMaybe noWarning . msum . map warningFor $ parents params t
warningFor t =
case t of
@ -2160,6 +2161,7 @@ prop_checkSpacefulnessI = verifyNotTree checkSpacefulness "$1 --flags"
prop_checkSpacefulnessJ = verifyTree checkSpacefulness "echo $PWD"
prop_checkSpacefulnessK = verifyNotTree checkSpacefulness "n+='foo bar'"
prop_checkSpacefulnessL = verifyNotTree checkSpacefulness "select foo in $bar; do true; done"
prop_checkSpacefulnessM = verifyNotTree checkSpacefulness "echo $\"$1\""
checkSpacefulness params t =
doVariableFlowAnalysis readF writeF (Map.fromList defaults) (variableFlow params)