+{
+ local *foo = sub { 'a' };
+ {
+ {
+ localize *foo, sub { 'b' } => UP;
+ is foo(), 'a', 'localize *foo, sub { "b" } => UP [not yet 1]';
+ {
+ no warnings 'redefine';
+ local *foo = sub { 'c' };
+ is foo(), 'c', 'localize *foo, sub { "b" } => UP [localized 1]';
+ }
+ is foo(), 'a', 'localize *foo, sub { "b" } => UP [not yet 2]';
+ }
+ is foo(), 'b', 'localize *foo, sub { "b" } => UP [ok 1]';
+ {
+ no warnings 'redefine';
+ local *foo = sub { 'd' };
+ is foo(), 'd', 'localize *foo, sub { "b" } => UP [localized 2]';
+ }
+ is foo(), 'b', 'localize *foo, sub { "b" } => UP [ok 2]';
+ }
+ is foo(), 'a', 'localize *foo, sub { "b" } => UP [end]';
+}
+
+{
+ local *foo = sub { 'x' };
+ {
+ {
+ localize *foo, sub { 'y' } => UP;
+ is foo(), 'x', 'localize *foo, sub { "y" } => UP [not yet]';
+ }
+ is foo(), 'y', 'localize *foo, sub { "y" } => UP [ok]';
+ no warnings 'redefine';
+ *foo = sub { 'z' };
+ is foo(), 'z', 'localize *foo, sub { "y" } => UP [replaced]';
+ }
+ is foo(), 'x', 'localize *foo, sub { "y" } => UP [end]';
+}
+
+sub X::foo { 'X::foo' }
+
+{
+ {
+ {
+ localize 'X::foo', sub { 'X::foo 2' } => UP;
+ is(X->foo, 'X::foo', 'localize "X::foo", sub { "X::foo 2" } => UP [not yet]')
+ }
+ is(X->foo, 'X::foo 2', 'localize "X::foo", sub { "X::foo 2" } => UP [ok]');
+ }
+ is(X->foo, 'X::foo', 'localize "X::foo", sub { "X::foo 2" } => UP [end]');
+}
+
+@Y::ISA = 'X';
+
+{
+ {
+ {
+ localize 'X::foo', sub { 'X::foo 3' } => UP;
+ is(Y->foo, 'X::foo', 'localize "X::foo", sub { "X::foo 3" } => UP [not yet]')
+ }
+ is(Y->foo, 'X::foo 3', 'localize "X::foo", sub { "X::foo 3" } => UP [ok]');
+ }
+ is(Y->foo, 'X::foo', 'localize "X::foo", sub { "X::foo 2" } => UP [end]');
+}
+
+{
+ {
+ {
+ localize 'Y::foo', sub { 'Y::foo' } => UP;
+ is(Y->foo, 'X::foo', 'localize "Y::foo", sub { "Y::foo" } => UP [not yet]');
+ }
+ is(Y->foo, 'Y::foo', 'localize "Y::foo", sub { "Y::foo" } => UP [ok]');
+ }
+ is(Y->foo, 'X::foo', 'localize "Y::foo", sub { "Y::foo" } => UP [end]');
+}
+