test/jdk/valhalla/valuetypes/MethodHandleTest.java

rev 55127 : 8223351: [lworld] Primary mirror and nullable mirror for inline type
Reviewed-by: tbd

*** 30,40 ****
   */
  
  import java.lang.invoke.*;
  import java.lang.reflect.Field;
  import java.lang.reflect.Modifier;
! import java.util.*;
  
  import org.testng.annotations.BeforeTest;
  import org.testng.annotations.DataProvider;
  import org.testng.annotations.Test;
  import static org.testng.Assert.*;
--- 30,40 ----
   */
  
  import java.lang.invoke.*;
  import java.lang.reflect.Field;
  import java.lang.reflect.Modifier;
! import java.util.List;
  
  import org.testng.annotations.BeforeTest;
  import org.testng.annotations.DataProvider;
  import org.testng.annotations.Test;
  import static org.testng.Assert.*;
*** 118,144 ****
              Object v = (Object)getter.invoke(array, i);
              assertEquals(v, o);
          }
  
          Class<?> elementType = c.getComponentType();
!         if (elementType.isValue()) {
!             assertTrue(elementType == elementType.asValueType());
          }
          // set an array element to null
          try {
              Object v = (Object)setter.invoke(array, 0, null);
!             assertFalse(elementType.isValue(), "should fail to set an inline class array element to null");
          } catch (NullPointerException e) {
!             assertTrue(elementType.isValue(), "should only fail to set an inline class array element to null");
          }
      }
  
      @Test
      public static void testNullableArray() throws Throwable {
          Class<?> arrayClass = (new Point?[0]).getClass();
          Class<?> elementType = arrayClass.getComponentType();
!         assertTrue(elementType == Point.class.asBoxType());
  
          MethodHandle setter = MethodHandles.arrayElementSetter(arrayClass);
          MethodHandle getter = MethodHandles.arrayElementGetter(arrayClass);
          MethodHandle ctor = MethodHandles.arrayConstructor(arrayClass);
          Object[] array = (Object[]) ctor.invoke(2);
--- 118,144 ----
              Object v = (Object)getter.invoke(array, i);
              assertEquals(v, o);
          }
  
          Class<?> elementType = c.getComponentType();
!         if (elementType.isInlineClass()) {
!             assertTrue(elementType == elementType.asPrimaryType());
          }
          // set an array element to null
          try {
              Object v = (Object)setter.invoke(array, 0, null);
!             assertFalse(elementType.isInlineClass(), "should fail to set an inline class array element to null");
          } catch (NullPointerException e) {
!             assertTrue(elementType.isInlineClass(), "should only fail to set an inline class array element to null");
          }
      }
  
      @Test
      public static void testNullableArray() throws Throwable {
          Class<?> arrayClass = (new Point?[0]).getClass();
          Class<?> elementType = arrayClass.getComponentType();
!         assertTrue(elementType == Point.class.asNullableType(), arrayClass.getComponentType().toString());
  
          MethodHandle setter = MethodHandles.arrayElementSetter(arrayClass);
          MethodHandle getter = MethodHandles.arrayElementGetter(arrayClass);
          MethodHandle ctor = MethodHandles.arrayConstructor(arrayClass);
          Object[] array = (Object[]) ctor.invoke(2);
*** 161,171 ****
          for (String name : names) {
              Field f = c.getDeclaredField(name);
              unreflectField(f);
              findGetter(f);
              varHandle(f);
!             if (c.isValue())
                  ensureImmutable(f);
              else
                  ensureNullable(f);
          }
      }
--- 161,171 ----
          for (String name : names) {
              Field f = c.getDeclaredField(name);
              unreflectField(f);
              findGetter(f);
              varHandle(f);
!             if (c.isInlineClass())
                  ensureImmutable(f);
              else
                  ensureNullable(f);
          }
      }
*** 194,204 ****
       * The field must be flattenable but may or may not be flattened.
       */
      void setValueField(String name, Object obj, Object value) throws Throwable {
          Field f = c.getDeclaredField(name);
          boolean isStatic = Modifier.isStatic(f.getModifiers());
!         assertTrue(f.getType().isValue());
          assertTrue((isStatic && obj == null) || (!isStatic && obj != null));
          Object v = f.get(obj);
  
          // Field::set
          try {
--- 194,204 ----
       * The field must be flattenable but may or may not be flattened.
       */
      void setValueField(String name, Object obj, Object value) throws Throwable {
          Field f = c.getDeclaredField(name);
          boolean isStatic = Modifier.isStatic(f.getModifiers());
!         assertTrue(f.getType().isInlineClass());
          assertTrue((isStatic && obj == null) || (!isStatic && obj != null));
          Object v = f.get(obj);
  
          // Field::set
          try {
*** 260,271 ****
       * Test setting the given field to null via reflection, method handle
       * and var handle.
       */
      void ensureNullable(Field f) throws Throwable {
          assertFalse(Modifier.isStatic(f.getModifiers()));
!         // flattenable implies non-nullable
!         boolean canBeNull = !isFlattenable(f);
          // test reflection
          try {
              f.set(o, null);
              assertTrue(canBeNull, f + " cannot be set to null");
          } catch (NullPointerException e) {
--- 260,270 ----
       * Test setting the given field to null via reflection, method handle
       * and var handle.
       */
      void ensureNullable(Field f) throws Throwable {
          assertFalse(Modifier.isStatic(f.getModifiers()));
!         boolean canBeNull = f.getType().isNullableType();
          // test reflection
          try {
              f.set(o, null);
              assertTrue(canBeNull, f + " cannot be set to null");
          } catch (NullPointerException e) {
*** 313,323 ****
      }
  
      boolean isFlattened(Field f) {
          return (f.getModifiers() & 0x00008000) == 0x00008000;
      }
- 
-     boolean isFlattenable(Field f) {
-         return (f.getModifiers() & 0x00000100) == 0x00000100;
-     }
- 
  }
--- 312,317 ----