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/*
* 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
* @summary "+=" applied to String operands can provoke side effects
* @bug 8204322
*
* @compile ImplicitStringConcatAssignLHS.java
* @run main/othervm -Xverify:all ImplicitStringConcatAssignLHS
*
* @compile -XDstringConcat=inline ImplicitStringConcatAssignLHS.java
* @run main/othervm -Xverify:all ImplicitStringConcatAssignLHS
*
* @compile -XDstringConcat=indy ImplicitStringConcatAssignLHS.java
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcatAssignLHS
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
*
* @compile -XDstringConcat=indyWithConstants ImplicitStringConcatAssignLHS.java
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcatAssignLHS
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcatAssignLHS
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcatAssignLHS
*/
import java.lang.StringBuilder;
public class ImplicitStringConcatAssignLHS {
static final int ARR_SIZE = 10; // enough padding to capture ill offsets
static int x;
public static void main(String[] args) throws Exception {
{
x = 0;
Object[] arr = new Object[ARR_SIZE];
arr[x++] += "foo";
check(1, "plain-plain Object[]");
}
{
x = 0;
getObjArray()[x++] += "foo";
check(2, "method-plain Object[]");
}
{
x = 0;
getObjArray()[getIndex()] += "foo";
check(2, "method-method Object[]");
}
{
x = 0;
String[] arr = new String[ARR_SIZE];
arr[x++] += "foo";
check(1, "plain-plain String[]");
}
{
x = 0;
getStringArray()[x++] += "foo";
check(2, "method-plain String[]");
}
{
x = 0;
getStringArray()[getIndex()] += "foo";
check(2, "method-method String[]");
}
{
x = 0;
CharSequence[] arr = new CharSequence[ARR_SIZE];
arr[x++] += "foo";
check(1, "plain-plain CharSequence[]");
}
{
x = 0;
getCharSequenceArray()[x++] += "foo";
check(2, "method-plain CharSequence[]");
}
{
x = 0;
getCharSequenceArray()[getIndex()] += "foo";
check(2, "method-method CharSequence[]");
}
{
x = 0;
new MyClass().s += "foo";
check(1, "MyClass::new (String)");
}
{
x = 0;
getMyClass().s += "foo";
check(1, "method MyClass::new (String)");
}
{
x = 0;
new MyClass().o += "foo";
check(1, "MyClass::new (object)");
}
{
x = 0;
getMyClass().o += "foo";
check(1, "method MyClass::new (object)");
}
}
public static void check(int expected, String label) {
if (x != expected) {
StringBuilder sb = new StringBuilder();
sb.append(label);
sb.append(": ");
sb.append("Expected = ");
sb.append(expected);
sb.append("actual = ");
sb.append(x);
throw new IllegalStateException(sb.toString());
}
}
public static int getIndex() {
return x++;
}
public static class MyClass {
Object o;
String s;
public MyClass() {
x++;
}
}
public static MyClass getMyClass() {
return new MyClass();
}
public static Object[] getObjArray() {
x++;
return new Object[ARR_SIZE];
}
public static String[] getStringArray() {
x++;
return new String[ARR_SIZE];
}
public static CharSequence[] getCharSequenceArray() {
x++;
return new String[ARR_SIZE];
}
}
|
