Don't warn about unused variables for read ''

2013-09-12 19:11:42 -07:00 · 2013-09-12 19:11:42 -07:00 · fb5f72951d
parent 7630136d6c
commit fb5f72951d
2 changed files with 2 additions and 1 deletions
--- a/ShellCheck/Analytics.hs
+++ b/ShellCheck/Analytics.hs
@ -1683,6 +1683,7 @@ prop_checkUnused5 = verifyNotFull checkUnusedAssignments "read lol; echo $lol"
 prop_checkUnused6 = verifyNotFull checkUnusedAssignments "var=4; (( var++ ))"
 prop_checkUnused7 = verifyNotFull checkUnusedAssignments "var=2; $((var))"
 prop_checkUnused8 = verifyFull checkUnusedAssignments "var=2; var=3;"
+prop_checkUnused9 = verifyNotFull checkUnusedAssignments "read ''"
 checkUnusedAssignments t = snd $ runState (mapM_ checkAssignment flow) []
  where
    flow = getVariableFlow t
--- a/ShellCheck/Data.hs
+++ b/ShellCheck/Data.hs
@ -2,7 +2,7 @@ module ShellCheck.Data where

 internalVariables = [
    -- Generic
-    "_",
+    "", "_",

    -- Bash
    "BASH", "BASHOPTS", "BASHPID", "BASH_ALIASES", "BASH_ARGC",