commit bash-20180309 snapshot

1 files changed, 51 insertions, 0 deletions

diff --git a/tests/nameref19.sub b/tests/nameref19.sub
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+# can we unset the nameref attribute on variables with values that reference
+# unset variables?
+
+unset bar
+declare -n foo="bar"
+declare -p foo
+
+declare +n foo
+declare -p foo bar
+
+declare -n foo
+declare -p foo
+
+# let's try removing the nameref attribute -- other attributes and assignments
+# apply to the nameref target
+
+declare +n -i foo=7+4
+declare -p foo bar
+
+unset foo bar
+
+# but if the nameref variable doesn't have a value, the attributes apply to
+# the nameref variable itself. thanks ksh93
+
+declare -n foo6
+declare -xi foo6
+declare -p foo6
+
+# and when we remove the nameref attribute, the other attributes remain
+
+declare +n foo6
+declare -p foo6
+
+unset foo6
+
+# make sure these cases continue to work
+
+# nameref referencing an existing, set variable
+declare -n foo=bar
+bar='Hello World!'
+declare -p foo bar
+declare +n foo
+declare -p foo bar
+unset foo bar
+
+# nameref referencing an existing, unset variable
+declare -n foo=bar
+declare bar
+declare -p foo bar
+declare +n foo
+declare -p foo bar