Java Code Examples for sun.invoke.util.Wrapper#VOID
The following examples show how to use
sun.invoke.util.Wrapper#VOID .
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Example 1
| Source File: ValueConversionsTest.java From hottub with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testBox() throws Throwable {
for (Wrapper w : Wrapper.values()) {
if (w == Wrapper.VOID) continue; // skip this; no unboxed form
if (w == Wrapper.OBJECT) continue; // skip this; already unboxed
for (int n = -5; n < 10; n++) {
Object box = w.wrap(n);
MethodHandle boxer = ValueConversions.boxExact(w);
Object expResult = box;
Object result = null;
switch (w) {
case INT: result = (Integer) boxer.invokeExact(/*int*/n); break;
case LONG: result = (Long) boxer.invokeExact((long)n); break;
case FLOAT: result = (Float) boxer.invokeExact((float)n); break;
case DOUBLE: result = (Double) boxer.invokeExact((double)n); break;
case CHAR: result = (Character) boxer.invokeExact((char)n); break;
case BYTE: result = (Byte) boxer.invokeExact((byte)n); break;
case SHORT: result = (Short) boxer.invokeExact((short)n); break;
case BOOLEAN: result = (Boolean) boxer.invokeExact((n & 1) != 0); break;
}
assertEquals("(dst,src,n,box)="+Arrays.asList(w,w,n,box),
expResult, result);
}
}
}
Example 2
| Source File: ValueConversionsTest.java From TencentKona-8 with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testBox() throws Throwable {
for (Wrapper w : Wrapper.values()) {
if (w == Wrapper.VOID) continue; // skip this; no unboxed form
if (w == Wrapper.OBJECT) continue; // skip this; already unboxed
for (int n = -5; n < 10; n++) {
Object box = w.wrap(n);
MethodHandle boxer = ValueConversions.boxExact(w);
Object expResult = box;
Object result = null;
switch (w) {
case INT: result = (Integer) boxer.invokeExact(/*int*/n); break;
case LONG: result = (Long) boxer.invokeExact((long)n); break;
case FLOAT: result = (Float) boxer.invokeExact((float)n); break;
case DOUBLE: result = (Double) boxer.invokeExact((double)n); break;
case CHAR: result = (Character) boxer.invokeExact((char)n); break;
case BYTE: result = (Byte) boxer.invokeExact((byte)n); break;
case SHORT: result = (Short) boxer.invokeExact((short)n); break;
case BOOLEAN: result = (Boolean) boxer.invokeExact((n & 1) != 0); break;
}
assertEquals("(dst,src,n,box)="+Arrays.asList(w,w,n,box),
expResult, result);
}
}
}
Example 3
| Source File: ExplicitCastArgumentsTest.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 6 votes |
|
/**
* Tests that primitive is successfully converted to other primitive type.
*/
public static void testPrim2Prim() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || to == Wrapper.VOID
|| from == Wrapper.OBJECT || to == Wrapper.OBJECT) {
continue;
}
Object value = RANDOM_VALUES.get(from);
Object convValue = to.wrap(value);
for (TestConversionMode mode : TestConversionMode.values()) {
testConversion(mode, from.primitiveType(),
to.primitiveType(), value, convValue, false, null);
}
}
}
}
Example 4
| Source File: ExplicitCastArgumentsTest.java From hottub with GNU General Public License v2.0 | 6 votes |
|
/**
* Tests that primitive is successfully converted to other primitive type.
*/
public static void testPrim2Prim() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || to == Wrapper.VOID
|| from == Wrapper.OBJECT || to == Wrapper.OBJECT) {
continue;
}
Object value = RANDOM_VALUES.get(from);
Object convValue = to.wrap(value);
for (TestConversionMode mode : TestConversionMode.values()) {
testConversion(mode, from.primitiveType(),
to.primitiveType(), value, convValue, false, null);
}
}
}
}
Example 5
| Source File: ExplicitCastArgumentsTest.java From TencentKona-8 with GNU General Public License v2.0 | 6 votes |
|
/**
* Tests that null wrapper reference is successfully converted to primitive
* types. Converted result should be zero for a primitive. Bug 8060483.
*/
public static void testNullRef2Prim() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || to == Wrapper.VOID) {
continue;
}
// MHs.eCA javadoc:
// If T0 is a reference and T1 a primitive, and if the reference
// is null at runtime, a zero value is introduced.
for (TestConversionMode mode : TestConversionMode.values()) {
testConversion(mode, from.wrapperType(),
to.primitiveType(), null, to.zero(), false, null);
}
}
}
}
Example 6
| Source File: ExplicitCastArgumentsTest.java From hottub with GNU General Public License v2.0 | 6 votes |
|
/**
* Tests that null wrapper reference is successfully converted to primitive
* types. Converted result should be zero for a primitive. Bug 8060483.
*/
public static void testNullRef2Prim() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || to == Wrapper.VOID) {
continue;
}
// MHs.eCA javadoc:
// If T0 is a reference and T1 a primitive, and if the reference
// is null at runtime, a zero value is introduced.
for (TestConversionMode mode : TestConversionMode.values()) {
testConversion(mode, from.wrapperType(),
to.primitiveType(), null, to.zero(), false, null);
}
}
}
}
Example 7
| Source File: ValueConversionsTest.java From dragonwell8_jdk with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testBox() throws Throwable {
for (Wrapper w : Wrapper.values()) {
if (w == Wrapper.VOID) continue; // skip this; no unboxed form
if (w == Wrapper.OBJECT) continue; // skip this; already unboxed
for (int n = -5; n < 10; n++) {
Object box = w.wrap(n);
MethodHandle boxer = ValueConversions.boxExact(w);
Object expResult = box;
Object result = null;
switch (w) {
case INT: result = (Integer) boxer.invokeExact(/*int*/n); break;
case LONG: result = (Long) boxer.invokeExact((long)n); break;
case FLOAT: result = (Float) boxer.invokeExact((float)n); break;
case DOUBLE: result = (Double) boxer.invokeExact((double)n); break;
case CHAR: result = (Character) boxer.invokeExact((char)n); break;
case BYTE: result = (Byte) boxer.invokeExact((byte)n); break;
case SHORT: result = (Short) boxer.invokeExact((short)n); break;
case BOOLEAN: result = (Boolean) boxer.invokeExact((n & 1) != 0); break;
}
assertEquals("(dst,src,n,box)="+Arrays.asList(w,w,n,box),
expResult, result);
}
}
}
Example 8
| Source File: ExplicitCastArgumentsTest.java From dragonwell8_jdk with GNU General Public License v2.0 | 6 votes |
|
/**
* Tests that null wrapper reference is successfully converted to primitive
* types. Converted result should be zero for a primitive. Bug 8060483.
*/
public static void testNullRef2Prim() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || to == Wrapper.VOID) {
continue;
}
// MHs.eCA javadoc:
// If T0 is a reference and T1 a primitive, and if the reference
// is null at runtime, a zero value is introduced.
for (TestConversionMode mode : TestConversionMode.values()) {
testConversion(mode, from.wrapperType(),
to.primitiveType(), null, to.zero(), false, null);
}
}
}
}
Example 9
| Source File: ValueConversionsTest.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
static void testConvert(Wrapper src, Wrapper dst, long tval) throws Throwable {
//System.out.println(src+" => "+dst);
boolean testSingleCase = (tval != 0);
final long tvalInit = tval;
MethodHandle conv = ValueConversions.convertPrimitive(src, dst);
MethodType convType;
if (src == Wrapper.VOID)
convType = MethodType.methodType(dst.primitiveType() /* , void */);
else
convType = MethodType.methodType(dst.primitiveType(), src.primitiveType());
assertEquals(convType, conv.type());
MethodHandle converter = conv.asType(conv.type().changeReturnType(Object.class));
for (;;) {
long n = tval;
Object testValue = src.wrap(n);
Object expResult = dst.cast(testValue, dst.primitiveType());
Object result;
switch (src) {
case INT: result = converter.invokeExact((int)n); break;
case LONG: result = converter.invokeExact(/*long*/n); break;
case FLOAT: result = converter.invokeExact((float)n); break;
case DOUBLE: result = converter.invokeExact((double)n); break;
case CHAR: result = converter.invokeExact((char)n); break;
case BYTE: result = converter.invokeExact((byte)n); break;
case SHORT: result = converter.invokeExact((short)n); break;
case OBJECT: result = converter.invokeExact((Object)n); break;
case BOOLEAN: result = converter.invokeExact((n & 1) != 0); break;
case VOID: result = converter.invokeExact(); break;
default: throw new AssertionError();
}
assertEquals("(src,dst,n,testValue)="+Arrays.asList(src,dst,"0x"+Long.toHexString(n),testValue),
expResult, result);
if (testSingleCase) break;
// next test value:
tval = nextTestValue(tval);
if (tval == tvalInit) break; // repeat
}
}
Example 10
| Source File: ValueConversionsTest.java From hottub with GNU General Public License v2.0 | 5 votes |
|
static void testConvert(Wrapper src, Wrapper dst, long tval) throws Throwable {
if (dst == Wrapper.OBJECT || src == Wrapper.OBJECT) return; // must have prims
if (dst == Wrapper.VOID || src == Wrapper.VOID ) return; // must have values
boolean testSingleCase = (tval != 0);
final long tvalInit = tval;
MethodHandle conv = ValueConversions.convertPrimitive(src, dst);
MethodType convType = MethodType.methodType(dst.primitiveType(), src.primitiveType());
assertEquals(convType, conv.type());
MethodHandle converter = conv.asType(conv.type().changeReturnType(Object.class));
for (;;) {
long n = tval;
Object testValue = src.wrap(n);
Object expResult = dst.cast(testValue, dst.primitiveType());
Object result;
switch (src) {
case INT: result = converter.invokeExact((int)n); break;
case LONG: result = converter.invokeExact(/*long*/n); break;
case FLOAT: result = converter.invokeExact((float)n); break;
case DOUBLE: result = converter.invokeExact((double)n); break;
case CHAR: result = converter.invokeExact((char)n); break;
case BYTE: result = converter.invokeExact((byte)n); break;
case SHORT: result = converter.invokeExact((short)n); break;
case BOOLEAN: result = converter.invokeExact((n & 1) != 0); break;
default: throw new AssertionError();
}
assertEquals("(src,dst,n,testValue)="+Arrays.asList(src,dst,"0x"+Long.toHexString(n),testValue),
expResult, result);
if (testSingleCase) break;
// next test value:
tval = nextTestValue(tval);
if (tval == tvalInit) break; // repeat
}
}
Example 11
| Source File: ExplicitCastArgumentsTest.java From dragonwell8_jdk with GNU General Public License v2.0 | 5 votes |
|
/**
* Tests that primitive is successfully converted to wrapper reference
* types, to the Number type (if possible) and to the Object type.
*/
public static void testPrim2Ref() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || from == Wrapper.OBJECT
|| to == Wrapper.VOID || to == Wrapper.OBJECT) {
continue;
}
Object value = RANDOM_VALUES.get(from);
for (TestConversionMode mode : TestConversionMode.values()) {
if (from == to) {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, null, true, ClassCastException.class);
}
if (from != Wrapper.BOOLEAN && from != Wrapper.CHAR) {
testConversion(mode, from.primitiveType(),
Number.class, value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
Number.class, value, null,
true, ClassCastException.class);
}
testConversion(mode, from.primitiveType(),
Object.class, value, value, false, null);
}
}
}
}
Example 12
| Source File: ValueConversionsTest.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
|
static void testConvert(Wrapper src, Wrapper dst, long tval) throws Throwable {
if (dst == Wrapper.OBJECT || src == Wrapper.OBJECT) return; // must have prims
if (dst == Wrapper.VOID || src == Wrapper.VOID ) return; // must have values
boolean testSingleCase = (tval != 0);
final long tvalInit = tval;
MethodHandle conv = ValueConversions.convertPrimitive(src, dst);
MethodType convType = MethodType.methodType(dst.primitiveType(), src.primitiveType());
assertEquals(convType, conv.type());
MethodHandle converter = conv.asType(conv.type().changeReturnType(Object.class));
for (;;) {
long n = tval;
Object testValue = src.wrap(n);
Object expResult = dst.cast(testValue, dst.primitiveType());
Object result;
switch (src) {
case INT: result = converter.invokeExact((int)n); break;
case LONG: result = converter.invokeExact(/*long*/n); break;
case FLOAT: result = converter.invokeExact((float)n); break;
case DOUBLE: result = converter.invokeExact((double)n); break;
case CHAR: result = converter.invokeExact((char)n); break;
case BYTE: result = converter.invokeExact((byte)n); break;
case SHORT: result = converter.invokeExact((short)n); break;
case BOOLEAN: result = converter.invokeExact((n & 1) != 0); break;
default: throw new AssertionError();
}
assertEquals("(src,dst,n,testValue)="+Arrays.asList(src,dst,"0x"+Long.toHexString(n),testValue),
expResult, result);
if (testSingleCase) break;
// next test value:
tval = nextTestValue(tval);
if (tval == tvalInit) break; // repeat
}
}
Example 13
| Source File: ExplicitCastArgumentsTest.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
/**
* Tests that primitive is successfully converted to wrapper reference
* types, to the Number type (if possible) and to the Object type.
*/
public static void testPrim2Ref() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || from == Wrapper.OBJECT
|| to == Wrapper.VOID || to == Wrapper.OBJECT) {
continue;
}
Object value = RANDOM_VALUES.get(from);
for (TestConversionMode mode : TestConversionMode.values()) {
if (from == to) {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, null, true, ClassCastException.class);
}
if (from != Wrapper.BOOLEAN && from != Wrapper.CHAR) {
testConversion(mode, from.primitiveType(),
Number.class, value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
Number.class, value, null,
true, ClassCastException.class);
}
testConversion(mode, from.primitiveType(),
Object.class, value, value, false, null);
}
}
}
}
Example 14
| Source File: ExplicitCastArgumentsTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
|
/**
* Tests that primitive is successfully converted to wrapper reference
* types, to the Number type (if possible) and to the Object type.
*/
public static void testPrim2Ref() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || from == Wrapper.OBJECT
|| to == Wrapper.VOID || to == Wrapper.OBJECT) {
continue;
}
Object value = RANDOM_VALUES.get(from);
for (TestConversionMode mode : TestConversionMode.values()) {
if (from == to) {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, null, true, ClassCastException.class);
}
if (from != Wrapper.BOOLEAN && from != Wrapper.CHAR) {
testConversion(mode, from.primitiveType(),
Number.class, value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
Number.class, value, null,
true, ClassCastException.class);
}
testConversion(mode, from.primitiveType(),
Object.class, value, value, false, null);
}
}
}
}
Example 15
| Source File: ValueConversionsTest.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
|
static void testConvert(Wrapper src, Wrapper dst, long tval) throws Throwable {
if (dst == Wrapper.OBJECT || src == Wrapper.OBJECT) return; // must have prims
if (dst == Wrapper.VOID || src == Wrapper.VOID ) return; // must have values
boolean testSingleCase = (tval != 0);
final long tvalInit = tval;
MethodHandle conv = ValueConversions.convertPrimitive(src, dst);
MethodType convType = MethodType.methodType(dst.primitiveType(), src.primitiveType());
assertEquals(convType, conv.type());
MethodHandle converter = conv.asType(conv.type().changeReturnType(Object.class));
for (;;) {
long n = tval;
Object testValue = src.wrap(n);
Object expResult = dst.cast(testValue, dst.primitiveType());
Object result;
switch (src) {
case INT: result = converter.invokeExact((int)n); break;
case LONG: result = converter.invokeExact(/*long*/n); break;
case FLOAT: result = converter.invokeExact((float)n); break;
case DOUBLE: result = converter.invokeExact((double)n); break;
case CHAR: result = converter.invokeExact((char)n); break;
case BYTE: result = converter.invokeExact((byte)n); break;
case SHORT: result = converter.invokeExact((short)n); break;
case BOOLEAN: result = converter.invokeExact((n & 1) != 0); break;
default: throw new AssertionError();
}
assertEquals("(src,dst,n,testValue)="+Arrays.asList(src,dst,"0x"+Long.toHexString(n),testValue),
expResult, result);
if (testSingleCase) break;
// next test value:
tval = nextTestValue(tval);
if (tval == tvalInit) break; // repeat
}
}
Example 16
| Source File: ValueConversionsTest.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
|
static void testConvert(Wrapper src, Wrapper dst, long tval) throws Throwable {
if (dst == Wrapper.OBJECT || src == Wrapper.OBJECT) return; // must have prims
if (dst == Wrapper.VOID || src == Wrapper.VOID ) return; // must have values
boolean testSingleCase = (tval != 0);
final long tvalInit = tval;
MethodHandle conv = ValueConversions.convertPrimitive(src, dst);
MethodType convType = MethodType.methodType(dst.primitiveType(), src.primitiveType());
assertEquals(convType, conv.type());
MethodHandle converter = conv.asType(conv.type().changeReturnType(Object.class));
for (;;) {
long n = tval;
Object testValue = src.wrap(n);
Object expResult = dst.cast(testValue, dst.primitiveType());
Object result;
switch (src) {
case INT: result = converter.invokeExact((int)n); break;
case LONG: result = converter.invokeExact(/*long*/n); break;
case FLOAT: result = converter.invokeExact((float)n); break;
case DOUBLE: result = converter.invokeExact((double)n); break;
case CHAR: result = converter.invokeExact((char)n); break;
case BYTE: result = converter.invokeExact((byte)n); break;
case SHORT: result = converter.invokeExact((short)n); break;
case BOOLEAN: result = converter.invokeExact((n & 1) != 0); break;
default: throw new AssertionError();
}
assertEquals("(src,dst,n,testValue)="+Arrays.asList(src,dst,"0x"+Long.toHexString(n),testValue),
expResult, result);
if (testSingleCase) break;
// next test value:
tval = nextTestValue(tval);
if (tval == tvalInit) break; // repeat
}
}
Example 17
| Source File: ValueConversionsTest.java From openjdk-8 with GNU General Public License v2.0 | 5 votes |
|
@Test
public void testBox() throws Throwable {
//System.out.println("box");
for (Wrapper w : Wrapper.values()) {
if (w == Wrapper.VOID) continue; // skip this; no unboxed form
//System.out.println(w);
for (int n = -5; n < 10; n++) {
Object box = w.wrap(n);
MethodHandle boxer = ValueConversions.box(w.primitiveType());
Object expResult = box;
Object result = null;
switch (w) {
case INT: result = boxer.invokeExact(/*int*/n); break;
case LONG: result = boxer.invokeExact((long)n); break;
case FLOAT: result = boxer.invokeExact((float)n); break;
case DOUBLE: result = boxer.invokeExact((double)n); break;
case CHAR: result = boxer.invokeExact((char)n); break;
case BYTE: result = boxer.invokeExact((byte)n); break;
case SHORT: result = boxer.invokeExact((short)n); break;
case OBJECT: result = boxer.invokeExact((Object)n); break;
case BOOLEAN: result = boxer.invokeExact((n & 1) != 0); break;
}
assertEquals("(dst,src,n,box)="+Arrays.asList(w,w,n,box),
expResult, result);
}
}
}
Example 18
| Source File: ExplicitCastArgumentsTest.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 5 votes |
|
/**
* Tests that primitive is successfully converted to wrapper reference
* types, to the Number type (if possible) and to the Object type.
*/
public static void testPrim2Ref() {
for (Wrapper from : Wrapper.values()) {
for (Wrapper to : Wrapper.values()) {
if (from == Wrapper.VOID || from == Wrapper.OBJECT
|| to == Wrapper.VOID || to == Wrapper.OBJECT) {
continue;
}
Object value = RANDOM_VALUES.get(from);
for (TestConversionMode mode : TestConversionMode.values()) {
if (from == to) {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
to.wrapperType(), value, null, true, ClassCastException.class);
}
if (from != Wrapper.BOOLEAN && from != Wrapper.CHAR) {
testConversion(mode, from.primitiveType(),
Number.class, value, value, false, null);
} else {
testConversion(mode, from.primitiveType(),
Number.class, value, null,
true, ClassCastException.class);
}
testConversion(mode, from.primitiveType(),
Object.class, value, value, false, null);
}
}
}
}
Example 19
| Source File: ValueConversionsTest.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
|
private void testUnbox(boolean doCast, Wrapper dst, Wrapper src) throws Throwable {
boolean expectThrow = !doCast && !dst.isConvertibleFrom(src);
if (dst == Wrapper.OBJECT || src == Wrapper.OBJECT) return; // must have prims
if (dst == Wrapper.VOID || src == Wrapper.VOID ) return; // must have values
if (dst == Wrapper.OBJECT)
expectThrow = false; // everything (even VOID==null here) converts to OBJECT
try {
for (int n = -5; n < 10; n++) {
Object box = src.wrap(n);
switch (src) {
case VOID: assertEquals(box, null); break;
case OBJECT: box = box.toString(); break;
case SHORT: assertEquals(box.getClass(), Short.class); break;
default: assertEquals(box.getClass(), src.wrapperType()); break;
}
MethodHandle unboxer;
if (doCast)
unboxer = ValueConversions.unboxCast(dst);
else
unboxer = ValueConversions.unboxWiden(dst);
Object expResult = (box == null) ? dst.zero() : dst.wrap(box);
Object result = null;
switch (dst) {
case INT: result = (int) unboxer.invokeExact(box); break;
case LONG: result = (long) unboxer.invokeExact(box); break;
case FLOAT: result = (float) unboxer.invokeExact(box); break;
case DOUBLE: result = (double) unboxer.invokeExact(box); break;
case CHAR: result = (char) unboxer.invokeExact(box); break;
case BYTE: result = (byte) unboxer.invokeExact(box); break;
case SHORT: result = (short) unboxer.invokeExact(box); break;
case BOOLEAN: result = (boolean) unboxer.invokeExact(box); break;
}
if (expectThrow) {
expResult = "(need an exception)";
}
assertEquals("(doCast,expectThrow,dst,src,n,box)="+Arrays.asList(doCast,expectThrow,dst,src,n,box),
expResult, result);
}
} catch (RuntimeException ex) {
if (expectThrow) return;
System.out.println("Unexpected throw for (doCast,expectThrow,dst,src)="+Arrays.asList(doCast,expectThrow,dst,src));
throw ex;
}
}
Example 20
| Source File: ValueConversionsTest.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
|
private void testUnbox(boolean doCast, Wrapper dst, Wrapper src) throws Throwable {
boolean expectThrow = !doCast && !dst.isConvertibleFrom(src);
if (dst == Wrapper.OBJECT || src == Wrapper.OBJECT) return; // must have prims
if (dst == Wrapper.VOID || src == Wrapper.VOID ) return; // must have values
if (dst == Wrapper.OBJECT)
expectThrow = false; // everything (even VOID==null here) converts to OBJECT
try {
for (int n = -5; n < 10; n++) {
Object box = src.wrap(n);
switch (src) {
case VOID: assertEquals(box, null); break;
case OBJECT: box = box.toString(); break;
case SHORT: assertEquals(box.getClass(), Short.class); break;
default: assertEquals(box.getClass(), src.wrapperType()); break;
}
MethodHandle unboxer;
if (doCast)
unboxer = ValueConversions.unboxCast(dst);
else
unboxer = ValueConversions.unboxWiden(dst);
Object expResult = (box == null) ? dst.zero() : dst.wrap(box);
Object result = null;
switch (dst) {
case INT: result = (int) unboxer.invokeExact(box); break;
case LONG: result = (long) unboxer.invokeExact(box); break;
case FLOAT: result = (float) unboxer.invokeExact(box); break;
case DOUBLE: result = (double) unboxer.invokeExact(box); break;
case CHAR: result = (char) unboxer.invokeExact(box); break;
case BYTE: result = (byte) unboxer.invokeExact(box); break;
case SHORT: result = (short) unboxer.invokeExact(box); break;
case BOOLEAN: result = (boolean) unboxer.invokeExact(box); break;
}
if (expectThrow) {
expResult = "(need an exception)";
}
assertEquals("(doCast,expectThrow,dst,src,n,box)="+Arrays.asList(doCast,expectThrow,dst,src,n,box),
expResult, result);
}
} catch (RuntimeException ex) {
if (expectThrow) return;
System.out.println("Unexpected throw for (doCast,expectThrow,dst,src)="+Arrays.asList(doCast,expectThrow,dst,src));
throw ex;
}
}
