commit bash-20150529 snapshot

tests/RUN-ONE-TEST

@@ -1,4 +1,4 @@
-BUILD_DIR=/usr/local/build/chet/bash/bash-current
+BUILD_DIR=/usr/local/build/bash/bash-current
 THIS_SH=$BUILD_DIR/bash
 PATH=$PATH:$BUILD_DIR
 

tests/nameref.right

@@ -133,3 +133,37 @@ idx2
 idX2
 idx2
 idX2
+declare -n foo="x[\$zero]"
+42
+declare -a x=([0]="4")
+declare -n foo="x[\$(echo 0)]"
+4
+comsub
+x[i=0]
+comsub
+4
+comsub
+4
+comsub
+4
+declare -n foo="somevariable"
+./nameref10.sub: line 38: typeset: somevariable: not found
+foo =
+declare -n foo="somevariable"
+declare -A somevariable=([jug]="brown" )
+./nameref10.sub: line 45: warning: foo=([jug]="brown" ): quoted compound array assignment deprecated
+declare -n foo="somevariable"
+declare -A somevariable=([jug]="brown" )
+declare -n foo="somevariable"
+./nameref10.sub: line 49: typeset: somevariable: not found
+./nameref10.sub: line 51: typeset: foo: not found
+./nameref10.sub: line 51: typeset: somevariable: not found
+declare -n foo="bar"
+./nameref10.sub: line 55: typeset: bar: not found
+declare -n foo="bar"
+./nameref10.sub: line 57: typeset: bar: not found
+declare -n foo="bar"
+declare -i bar="8"
+8
+declare -n foo="bar"
+./nameref10.sub: line 64: typeset: bar: not found

tests/nameref.tests

@@ -124,3 +124,4 @@ ${THIS_SH} ./nameref6.sub
 ${THIS_SH} ./nameref7.sub
 ${THIS_SH} ./nameref8.sub
 ${THIS_SH} ./nameref9.sub
+${THIS_SH} ./nameref10.sub

tests/nameref10.sub

@@ -0,0 +1,64 @@
+# testing behavior of command substitution as one of expansions performed by
+# array subscripting; should behave the same directly as when done through
+# a nameref
+
+x[0]=42
+zero=0
+f() { typeset -n foo="$1"; declare -p foo; echo "$foo"; }
+
+f 'x[$zero]'
+
+x[$(echo 0)]=4
+declare -p x
+
+f 'x[$(echo 0)]'
+
+unset -f f
+f()
+{
+	typeset -n foo="$1";
+
+	echo "x[i=0$(echo comsub >&2)]"
+	echo "${x[i=0$(echo comsub >&2)]}"
+	echo "${!1}"
+	echo "$foo"
+}
+
+f 'x[i=0$(echo comsub >&2)]'
+
+unset -f f
+unset x
+
+# problems with unset and namerefs pointing to non-existent variables pointed
+# out after bash-4.3 released
+
+typeset -n foo=somevariable
+foo=bar
+unset foo		# unsets somevariable
+typeset -p foo somevariable
+echo foo = $foo
+
+typeset -A foo		# should create array variable named somevariable
+foo["jug"]="brown"
+
+typeset -p foo somevariable
+typeset -A foo='([jug]="brown" )'
+typeset -p foo somevariable
+
+unset foo
+typeset -p foo somevariable
+unset -n foo
+typeset -p foo somevariable
+
+unset bar
+typeset -n foo=bar
+typeset -p foo bar
+unset foo
+typeset -p foo bar
+typeset -i foo
+foo=4+4
+typeset -p foo bar
+echo "$foo"
+
+unset foo
+typeset -p foo bar

tests/nameref4.sub

@@ -66,7 +66,9 @@ ckval bar hello
 
 # XXX -- another self-referencing error?
 # ksh93 makes this another invalid self-reference
-unset foo bar
+unset foo
+unset -n bar
+
 bar=123
 foobar()
 {
@@ -80,14 +82,16 @@ typeset -n short=long
 short=( a b )
 echo "expect <a b>"
 echo ${long[@]}
-unset short long
+unset long
+unset -n short
 
 # assignment to a previously-unset variable
 typeset -n short=long
 short=foo
 echo "expect <foo>"
 echo ${long}
-unset short long
+unset long
+unset -n short
 
 unset foo bar
 
@@ -110,7 +114,8 @@ barfunc()
 barfunc bar
 
 unset -f foobar
-unset foo bar
+unset bar
+unset -n foo
 
 # should ref at global scope survive call to foobar()?
 unset ref x
@@ -151,6 +156,8 @@ echo "expect <zero> <one> <seven> <three> <four>"
 recho "${x[@]}"
 
 unset ref x
+unset -n ref
+
 typeset -n ref
 ref=x
 # make sure nameref to a previously-unset variable creates the variable
@@ -159,6 +166,8 @@ ckval x 42
 
 # make sure they work inside arithmetic expressions
 unset foo bar ref x xxx
+unset -n ref
+
 typeset -i ivar
 typeset -n iref=ivar