8205626: Start of release updates for JDK 13
8205393: Add SourceVersion.RELEASE_13
8205394: Add source 13 and target 13 to javac
8205645: Bump maximum recognized class file version to 57 for JDK 13
8214825: Update preview language features for start of JDK 13
Reviewed-by: erikj, alanb, mchung, mcimadamore, dholmes, smarks, jjg
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8214031
* @summary Verify that definite assignment when true works (legal code)
* @compile --enable-preview --source 13 DefiniteAssignment1.java
* @run main/othervm --enable-preview DefiniteAssignment1
*/
public class DefiniteAssignment1 {
public static void main(String[] args) {
int a = 0;
boolean b = true;
{
int x;
boolean t1 = (b && switch(a) {
case 0: break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t1) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t1 = (b && switch(a) {
case 0: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t1) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t1a = (b && switch(a) {
case 0: break (x = 1) == 1;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t1a) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t1b = (switch(a) {
case 0: break (x = 1) == 1;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t1b) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t2 = !(b && switch(a) {
case 0: break (x = 1) == 1 || true;
default: break false;
}) || x == 1;
if (!t2) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t2 = !(b && switch(a) {
case 0: break (x = 1) == 1 || isTrue();
default: break false;
}) || x == 1;
if (!t2) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t3 = !(switch(a) {
case 0: break (x = 1) == 1 || true;
default: break false;
}) || x == 2;
if (t3) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t3 = !(switch(a) {
case 0: break (x = 1) == 1 || isTrue();
default: break false;
}) || x == 2;
if (t3) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t4 = (b && switch(a) {
case 0: break (x = 1) == 1 || true;
default: throw new IllegalStateException();
}) && x == 1; //x is definitelly assigned here
if (!t4) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
boolean t4 = (b && switch(a) {
case 0: break (x = 1) == 1 || isTrue();
default: throw new IllegalStateException();
}) && x == 1; //x is definitelly assigned here
if (!t4) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
String s = "a";
boolean t5 = (switch(s) {
case "a": break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t5) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
String s = "a";
boolean t5 = (switch(s) {
case "a": break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t5) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.B;
boolean t6 = (switch(e) {
case B: break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t6) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.B;
boolean t6 = (switch(e) {
case B: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t6) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
int t7 = new DefiniteAssignment1().id(switch(0) {
default -> true;
} && (x = 1) == 1 && x == 1 ? 2 : -1);
if (t7 != 2) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
int t7 = new DefiniteAssignment1().id(switch(0) {
default -> isTrue();
} && (x = 1) == 1 && x == 1 ? 2 : -1);
if (t7 != 2) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.B;
boolean t8 = (switch(e) {
case A: x = 1; break true;
case B: break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t8) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.B;
boolean t8 = (switch(e) {
case A: x = 1; break isTrue();
case B: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t8) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.A;
boolean t9 = (switch(e) {
case A: x = 1; break true;
case B: break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t9) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.A;
boolean t9 = (switch(e) {
case A: x = 1; break isTrue();
case B: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!t9) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.C;
boolean tA = (switch(e) {
case A: x = 1; break true;
case B: break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (tA) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.C;
boolean tA = (switch(e) {
case A: x = 1; break isTrue();
case B: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (tA) {
throw new IllegalStateException("Unexpected result.");
}
}
{
final int x;
E e = E.C;
boolean tA = (switch(e) {
case A: x = 1; break true;
case B: break (x = 2) == 2 || true;
default: break false;
}) || (x = 3) == 3; //x is definitelly unassigned here
if (x != 3) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.A;
boolean tA = (switch(e) {
case A: break isTrue() && (x = 1) == 1;
case B: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!tA) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.A;
boolean tA = (switch(e) {
case A: break isTrue() && e != E.C ? (x = 1) == 1 && e != E.B : false;
case B: break (x = 1) == 1 || true;
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!tA) {
throw new IllegalStateException("Unexpected result.");
}
}
{
int x;
E e = E.A;
boolean tA = (switch(e) {
case A: break isTrue() && e != E.C ? (x = 1) == 1 && e != E.B : false;
case B: break (x = 1) == 1 || isTrue();
default: break false;
}) && x == 1; //x is definitelly assigned here
if (!tA) {
throw new IllegalStateException("Unexpected result.");
}
}
}
private int id(int v) {
return v;
}
private static boolean isTrue() {
return true;
}
enum E {
A, B, C;
}
}