8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8206986 8226510
27 * @summary Verify than a switch that does not yield a value is rejected.
28 * @compile/fail/ref=EmptySwitch.out --enable-preview -source ${jdk.version} -XDrawDiagnostics -XDshould-stop.at=FLOW EmptySwitch.java
29 */
30
31 public class EmptySwitch {
32 private void print(EmptySwitchEnum t) {
33 (switch (t) {
34 }).toString();
35 (switch (t) {
36 default -> throw new IllegalStateException();
37 }).toString();
38 (switch (t) {
39 default: throw new IllegalStateException();
40 }).toString();
41 (switch (0) {
42 case 0: yield "";
43 default:
44 }).toString();
45 (switch (0) {
46 case 0 -> { yield ""; }
47 default -> { }
48 }).toString();
|
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8206986 8226510
27 * @summary Verify than a switch that does not yield a value is rejected.
28 * @compile/fail/ref=EmptySwitch.out -XDrawDiagnostics -XDshould-stop.at=FLOW EmptySwitch.java
29 */
30
31 public class EmptySwitch {
32 private void print(EmptySwitchEnum t) {
33 (switch (t) {
34 }).toString();
35 (switch (t) {
36 default -> throw new IllegalStateException();
37 }).toString();
38 (switch (t) {
39 default: throw new IllegalStateException();
40 }).toString();
41 (switch (0) {
42 case 0: yield "";
43 default:
44 }).toString();
45 (switch (0) {
46 case 0 -> { yield ""; }
47 default -> { }
48 }).toString();
|