commit bash-20190215 snapshot

tests/new-exp.right

@@ -667,6 +667,9 @@ prependå
 å
 ḅć
 ḅć
+HELLO;1 foo;2 foo;
+PASS;1 foo;2 foo;
+after: PASS
 argv[1] = </>
 argv[1] = </>
-./new-exp.tests: line 615: ABXD: parameter unset
+./new-exp.tests: line 618: ABXD: parameter unset

tests/new-exp.tests

@@ -604,6 +604,9 @@ ${THIS_SH} ./new-exp10.sub
 # parameter substring replacement and removal operators with multibyte chars
 ${THIS_SH} ./new-exp11.sub
 
+# indirect expansion with arrays and local variables
+${THIS_SH} ./new-exp12.sub
+
 # problems with stray CTLNUL in bash-4.0-alpha
 unset a
 a=/a

tests/new-exp12.sub

@@ -0,0 +1,28 @@
+#!/bin/bash
+#
+# make sure indirect expansion for arrays uses the closest-scope instance
+# of the resulting variable name
+
+array_1=("PASS")
+array_2=("1 foo" "2 foo")
+
+unsafe_fn ()
+{
+    local array_1=('HELLO')
+    local a=("${!1}") b=("${!2}")
+    printf '%s;' "${a[@]}" "${b[@]}"
+    printf '\n'
+}
+
+safe_fn ()
+{
+    local a=("${!1}") b=("${!2}")
+    local array_1=('FAIL')
+    printf '%s;' "${a[@]}" "${b[@]}"
+    printf '\n'
+}
+
+unsafe_fn 'array_1[@]' 'array_2[@]'
+safe_fn 'array_1[@]' 'array_2[@]'
+
+echo after: ${array_1[@]}