Java Code Examples for sun.invoke.util.Wrapper#VOID

The following examples show how to use sun.invoke.util.Wrapper#VOID . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ValueConversionsTest.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up
@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 vote down vote up
@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 vote down vote up
/**
 * 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 vote down vote up
/**
 * 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 vote down vote up
/**
 * 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 vote down vote up
/**
 * 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 vote down vote up
@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 vote down vote up
/**
 * 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 vote down vote up
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 vote down vote up
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 vote down vote up
/**
 * 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 vote down vote up
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 vote down vote up
/**
 * 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 vote down vote up
/**
 * 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 vote down vote up
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 vote down vote up
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 vote down vote up
@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 vote down vote up
/**
 * 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 vote down vote up
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 vote down vote up
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;
    }
}