--- /dev/null 2015-11-23 01:27:16.425045507 +0300 +++ new/test/java/lang/String/concat/ImplicitStringConcat.java 2015-11-26 01:38:41.733622936 +0300 @@ -0,0 +1,219 @@ +/* + * Copyright (c) 2000, 2015, 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 test implicit String concatenations + * + * @compile ImplicitStringConcat.java + * @run main/othervm ImplicitStringConcat + * + * @compile -XDstringConcat=inline ImplicitStringConcat.java + * @run main/othervm ImplicitStringConcat + * + * @compile -XDstringConcat=indy -source 1.9 -target 1.9 ImplicitStringConcat.java + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcat + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * + * @compile -XDstringConcat=indyWithConstants -source 1.9 -target 1.9 ImplicitStringConcat.java + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcat + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat + * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat +*/ +import java.lang.StringBuilder; + +public class ImplicitStringConcat { + + static boolean b = true; + static byte by = 42; + static short sh = 42; + static char ch = 'a'; + static int i = 42; + static float fl = 42.0f; + static long l = 42; + static double d = 42.0d; + static String s = "foo"; + static String sNull = null; + static Object o = "bar"; + static Object oNull = null; + static CharSequence cs = "bar"; + static char[] chars = new char[] {'a'}; + + static MyClass myCl = new MyClass(); + static MyClassNull myClNull = new MyClassNull(); + static Object myCl2 = new MyClass(); + static Object[] myArr = new Object[] { myCl }; + static final Object[] s_myArr = new Object[] { myCl }; + + static StringBuffer sb = new StringBuffer(); + static { + sb.append('a'); + } + + public static void main(String[] args) throws Exception { + + test("footrue", s + b); + test("foo42", s + by); + test("foo42", s + sh); + test("fooa", s + ch); + test("foo42", s + i); + test("foo42", s + l); + test("foo42.0", s + fl); + test("foo42.0", s + d); + test("foofoo", s + s); + test("foonull", s + sNull); + test("foobar", s + o); + test("foonull", s + oNull); + test("foobar", s + cs); + + { + StringBuilder sb = new StringBuilder(); + sb.append("foo"); + sb.append(myArr.toString()); + test(sb.toString(), s + myArr); + } + + { + StringBuilder sb = new StringBuilder(); + sb.append("foo"); + sb.append(s_myArr.toString()); + test(sb.toString(), s + s_myArr); + } + + { + StringBuilder sb = new StringBuilder(); + sb.append("foo[C@"); + sb.append(Integer.toHexString(System.identityHashCode(chars))); + test(sb.toString(), s + chars); + } + + test("fooa", s + ImplicitStringConcat.sb); + test("foonull", s + null); + test("fooMyClass", s + myCl); + test("foonull", s + myClNull); + test("fooMyClass", s + myCl2); + + s = "foo"; s += b; test("footrue", s); + s = "foo"; s += by; test("foo42", s); + s = "foo"; s += sh; test("foo42", s); + s = "foo"; s += ch; test("fooa", s); + s = "foo"; s += i; test("foo42", s); + s = "foo"; s += l; test("foo42", s); + s = "foo"; s += fl; test("foo42.0", s); + s = "foo"; s += d; test("foo42.0", s); + s = "foo"; s += s; test("foofoo", s); + s = "foo"; s += sNull; test("foonull", s); + s = "foo"; s += o; test("foobar", s); + s = "foo"; s += oNull; test("foonull", s); + s = "foo"; s += cs; test("foobar", s); + + { + StringBuilder sb = new StringBuilder(); + sb.append("foo[C@"); + sb.append(Integer.toHexString(System.identityHashCode(chars))); + s = "foo"; + s += chars; + test(sb.toString(), s); + } + + s = "foo"; s += ImplicitStringConcat.sb; test("fooa", s); + s = "foo"; s += null; test("foonull", s); + s = "foo"; s += myCl; test("fooMyClass", s); + s = "foo"; s += myCl2; test("fooMyClass", s); + } + + public static void test(String expected, String actual) { + // Fingers crossed: String concat should work. + if (!expected.equals(actual)) { + StringBuilder sb = new StringBuilder(); + sb.append("Expected = "); + sb.append(expected); + sb.append(", actual = "); + sb.append(actual); + throw new IllegalStateException(sb.toString()); + } + } + + static class MyClass { + public String toString() { + return "MyClass"; + } + } + + static class MyClassNull { + public String toString() { + return null; + } + } +}