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Fix isClosingFileOp (fixes issue #862) 

The isClosingFileOp function expected closing file ops to use T_IoFile, but
they actually use T_IoDuplicate; so it effectively always returned False.
This commit is contained in:
Luke Shumaker 2017-11-05 18:35:50 -05:00
parent 102683ab04
commit df068bc8ed
2 changed files with 3 additions and 2 deletions
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1
ShellCheck/Analytics.hs
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@ -1810,6 +1810,7 @@ prop_checkUnused33= verifyNotTree checkUnusedAssignments "a=foo; [[ foo =~ ^{$a}
prop_checkUnused34= verifyNotTree checkUnusedAssignments "foo=1; (( t = foo )); echo $t"
prop_checkUnused35= verifyNotTree checkUnusedAssignments "a=foo; b=2; echo ${a:b}"
prop_checkUnused36= verifyNotTree checkUnusedAssignments "if [[ -v foo ]]; then true; fi"
prop_checkUnused37= verifyNotTree checkUnusedAssignments "fd=2; exec {fd}>&-"
checkUnusedAssignments params t = execWriter (mapM_ warnFor unused)
where
flow = variableFlow params

4
ShellCheck/AnalyzerLib.hs
View File

@ -487,8 +487,8 @@ getModifiedVariables t =
isClosingFileOp op =
case op of
T_IoFile _ (T_GREATAND _) (T_NormalWord _ [T_Literal _ "-"]) -> True
T_IoFile _ (T_LESSAND _) (T_NormalWord _ [T_Literal _ "-"]) -> True
T_IoDuplicate _ (T_GREATAND _) "-" -> True
T_IoDuplicate _ (T_LESSAND _) "-" -> True
_ -> False