| /* |
| * 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]; |
| } |
| |
| } |
| |