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/*
* @test
* @summary Test features provided by the Carriers class.
* @modules java.base/java.lang.runtime
* @enablePreview true
* @compile --patch-module java.base=${test.src} CarriersTest.java
* @run main/othervm --patch-module java.base=${test.class.path} java.lang.runtime.CarriersTest
*/
package java.lang.runtime;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodType;
import java.util.Arrays;
import java.util.List;
public class CarriersTest {
public static void main(String[] args) throws Throwable {
primitivesTest();
primitivesTestLarge();
limitsTest();
}
static void assertTrue(boolean test, String message) {
if (!test) {
throw new RuntimeException(message);
}
}
static final int MAX_COMPONENTS = 254;
static void primitivesTest() throws Throwable {
MethodType methodType =
MethodType.methodType(Object.class, byte.class, short.class,
char.class, int.class, long.class,
float.class, double.class,
boolean.class, String.class);
MethodHandle constructor = Carriers.initializingConstructor(methodType);
Object object = (Object)constructor.invokeExact((byte)0xFF, (short)0xFFFF,
'C', 0xFFFFFFFF, 0xFFFFFFFFFFFFFFFFL,
1.0f / 3.0f, 1.0 / 3.0,
true, "abcde");
List<MethodHandle> components = Carriers.components(methodType);
assertTrue((byte)components.get(0).invokeExact(object) == (byte)0xFF,
"primitive byte test failure");
assertTrue((short)components.get(1).invokeExact(object) == (short)0xFFFF,
"primitive short test failure");
assertTrue((char)components.get(2).invokeExact(object) == 'C',
"primitive char test failure");
assertTrue((int)components.get(3).invokeExact(object) == 0xFFFFFFFF,
"primitive int test failure");
assertTrue((long)components.get(4).invokeExact(object) == 0xFFFFFFFFFFFFFFFFL,
"primitive long test failure");
assertTrue((float)components.get(5).invokeExact(object) == 1.0f / 3.0f,
"primitive float test failure");
assertTrue((double)components.get(6).invokeExact(object) == 1.0 / 3.0,
"primitive double test failure");
assertTrue((boolean)components.get(7).invokeExact(object),
"primitive boolean test failure");
assertTrue("abcde".equals((String)components.get(8).invokeExact(object)),
"primitive String test failure");
}
static void primitivesTestLarge() throws Throwable {
MethodType methodType =
MethodType.methodType(Object.class, byte.class, short.class,
char.class, int.class, long.class,
float.class, double.class,
boolean.class, String.class,
Object.class, Object.class,Object.class,Object.class,
Object.class, Object.class,Object.class,Object.class,
Object.class, Object.class,Object.class,Object.class,
Object.class, Object.class,Object.class,Object.class,
Object.class, Object.class,Object.class,Object.class,
Object.class, Object.class,Object.class,Object.class,
Object.class, Object.class,Object.class,Object.class
);
MethodHandle constructor = Carriers.initializingConstructor(methodType);
Object object = (Object)constructor.invokeExact((byte)0xFF, (short)0xFFFF,
'C', 0xFFFFFFFF, 0xFFFFFFFFFFFFFFFFL,
1.0f / 3.0f, 1.0 / 3.0,
true, "abcde",
(Object)null, (Object)null, (Object)null, (Object)null,
(Object)null, (Object)null, (Object)null, (Object)null,
(Object)null, (Object)null, (Object)null, (Object)null,
(Object)null, (Object)null, (Object)null, (Object)null,
(Object)null, (Object)null, (Object)null, (Object)null,
(Object)null, (Object)null, (Object)null, (Object)null,
(Object)null, (Object)null, (Object)null, (Object)null
);
List<MethodHandle> components = Carriers.components(methodType);
assertTrue((byte)components.get(0).invokeExact(object) == (byte)0xFF,
"large primitive byte test failure");
assertTrue((short)components.get(1).invokeExact(object) == (short)0xFFFF,
"large primitive short test failure");
assertTrue((char)components.get(2).invokeExact(object) == 'C',
"large primitive char test failure");
assertTrue((int)components.get(3).invokeExact(object) == 0xFFFFFFFF,
"large primitive int test failure");
assertTrue((long)components.get(4).invokeExact(object) == 0xFFFFFFFFFFFFFFFFL,
"large primitive long test failure");
assertTrue((float)components.get(5).invokeExact(object) == 1.0f / 3.0f,
"large primitive float test failure");
assertTrue((double)components.get(6).invokeExact(object) == 1.0 / 3.0,
"large primitive double test failure");
assertTrue((boolean)components.get(7).invokeExact(object),
"large primitive boolean test failure");
assertTrue("abcde".equals((String)components.get(8).invokeExact(object)),
"large primitive String test failure");
}
static void limitsTest() {
boolean passed;
passed = false;
try {
Class<?>[] ptypes = new Class<?>[MAX_COMPONENTS + 1];
Arrays.fill(ptypes, Object.class);
MethodType methodType = MethodType.methodType(Object.class, ptypes);
MethodHandle constructor = Carriers.constructor(methodType);
} catch (IllegalArgumentException ex) {
passed = true;
}
if (!passed) {
throw new RuntimeException("failed to report too many components ");
}
passed = false;
try {
Class<?>[] ptypes = new Class<?>[MAX_COMPONENTS / 2 + 1];
Arrays.fill(ptypes, long.class);
MethodType methodType = MethodType.methodType(Object.class, ptypes);
MethodHandle constructor = Carriers.constructor(methodType);
} catch (IllegalArgumentException ex) {
passed = true;
}
if (!passed) {
throw new RuntimeException("failed to report too many components ");
}
}
}