/*
* Copyright (c) 2015, 2016, 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 -Xverify:all ImplicitStringConcat
*
* @compile -XDstringConcat=inline ImplicitStringConcat.java
* @run main/othervm -Xverify:all ImplicitStringConcat
*
* @compile -XDstringConcat=indy ImplicitStringConcat.java
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcat
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @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 ImplicitStringConcat
* @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 ImplicitStringConcat
* @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 ImplicitStringConcat
*
* @compile -XDstringConcat=indyWithConstants ImplicitStringConcat.java
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcat
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
*
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @run main/othervm -Xverify:all -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat
* @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 ImplicitStringConcat
* @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 ImplicitStringConcat
* @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 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("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;
}
}
}