commit bash-20200814 snapshot

tests/new-exp.right

@@ -708,6 +708,17 @@ aaa bb
 'a b' 'c d' 'e f'
 0 "zero" 1 "one" 2 "two" 3 "three"
 0 "zero z" 1 "one o" 2 "two t" 3 "three t"
+declare -a foo=()
+ai
+declare -ai foo
+bash: line 1: foo: unbound variable
+ai
+declare -ai foo
+bash: line 1: !bar: unbound variable
+a
+a
+a
+a
 argv[1] = </>
 argv[1] = </>
 

tests/new-exp.tests

@@ -628,6 +628,9 @@ ${THIS_SH} ./new-exp13.sub
 # new K parameter transformation operator
 ${THIS_SH} ./new-exp14.sub
 
+# ongoing work with a/A parameter transformations and `nounset'
+${THIS_SH} ./new-exp15.sub
+
 # problems with stray CTLNUL in bash-4.0-alpha
 unset a
 a=/a

tests/new-exp15.sub

@@ -0,0 +1,29 @@
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+: ${THIS_SH:=./bash}
+
+${THIS_SH} -c 'declare -a foo=() ; declare -p foo' bash
+
+${THIS_SH} -c 'declare -ia foo=() ; echo ${foo@a} ; echo ${foo@A}' bash
+${THIS_SH} -uc 'declare -ia foo=() ; echo ${foo@a} ; echo ${foo@A}' bash
+
+${THIS_SH} -c 'declare -ia foo=() ; bar=foo; echo ${!bar@a} ; echo ${!bar@A}' bash
+${THIS_SH} -uc 'declare -ia foo=() ; bar=foo; echo ${!bar@a} ; echo ${!bar@A}' bash
+
+${THIS_SH} -c 'declare -a foo=( [1]=one ) ; echo ${foo@a}' bash
+${THIS_SH} -uc 'declare -a foo=( [1]=one ) ; echo ${foo@a}' bash
+
+${THIS_SH} -c 'declare -a foo=( [1]=one ) ; bar=foo; echo ${!bar@a}' bash
+${THIS_SH} -uc 'declare -a foo=( [1]=one ) ; bar=foo; echo ${!bar@a}' bash