19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.hotspot.test;
  24 
  25 import static java.lang.reflect.Modifier.FINAL;
  26 import static java.lang.reflect.Modifier.PRIVATE;
  27 import static java.lang.reflect.Modifier.PROTECTED;
  28 import static java.lang.reflect.Modifier.PUBLIC;
  29 import static java.lang.reflect.Modifier.STATIC;
  30 import static java.lang.reflect.Modifier.TRANSIENT;
  31 import static java.lang.reflect.Modifier.VOLATILE;
  32 
  33 import java.lang.reflect.Field;
  34 import java.lang.reflect.InvocationTargetException;
  35 import java.lang.reflect.Method;
  36 
  37 import org.junit.Assert;
  38 import org.junit.Test;
  39 
  40 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  41 
  42 import jdk.vm.ci.hotspot.HotSpotResolvedJavaField;
  43 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  44 import jdk.vm.ci.meta.JavaType;
  45 import jdk.vm.ci.meta.ResolvedJavaField;
  46 
  47 /**
  48  * Tests {@link HotSpotResolvedJavaField} functionality.
  49  */
  50 public class HotSpotResolvedJavaFieldTest extends HotSpotGraalCompilerTest {
  51 
  52     private static final Class<?>[] classesWithInternalFields = {Class.class, ClassLoader.class};
  53 
  54     private static final Method createFieldMethod;

  55 
  56     static {
  57         Method ret = null;

  58         try {
  59             Class<?> typeImpl = Class.forName("jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl");
  60             ret = typeImpl.getDeclaredMethod("createField", String.class, JavaType.class, long.class, int.class);
  61             ret.setAccessible(true);
  62         } catch (ClassNotFoundException | NoSuchMethodException | SecurityException e) {
  63             e.printStackTrace();



  64         }
  65 
  66         createFieldMethod = ret;

  67     }
  68 
  69     /**
  70      * Same as {@code HotSpotModifiers.jvmFieldModifiers()} but works when using a JVMCI version
  71      * prior to the introduction of that method.
  72      */
  73     private int jvmFieldModifiers() {
  74         GraalHotSpotVMConfig config = runtime().getVMConfig();
  75         int accEnum = config.getConstant("JVM_ACC_ENUM", Integer.class, 0x4000);
  76         int accSynthetic = config.getConstant("JVM_ACC_SYNTHETIC", Integer.class, 0x1000);
  77         return PUBLIC | PRIVATE | PROTECTED | STATIC | FINAL | VOLATILE | TRANSIENT | accEnum | accSynthetic;
  78     }
  79 
  80     /**
  81      * Tests that {@link HotSpotResolvedJavaField#getModifiers()} only includes the modifiers
  82      * returned by {@link Field#getModifiers()}. Namely, it must not include
  83      * {@code HotSpotResolvedJavaField#FIELD_INTERNAL_FLAG}.
  84      */
  85     @Test
  86     public void testModifiersForInternal() {
  87         for (Class<?> c : classesWithInternalFields) {
  88             HotSpotResolvedObjectType type = HotSpotResolvedObjectType.fromObjectClass(c);
  89             for (ResolvedJavaField field : type.getInstanceFields(false)) {
  90                 if (field.isInternal()) {
  91                     Assert.assertEquals(0, ~jvmFieldModifiers() & field.getModifiers());
  92                 }
  93             }
  94         }
  95     }
  96 
  97     /**
  98      * Tests that {@code HotSpotResolvedObjectType#createField(String, JavaType, long, int)} always
  99      * returns the same object for an internal field.

 100      *
 101      * @throws InvocationTargetException
 102      * @throws IllegalArgumentException
 103      * @throws IllegalAccessException
 104      */
 105     @Test
 106     public void testCachingForInternalFields() throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {
 107         Assert.assertTrue("HotSpotResolvedObjectTypeImpl.createField method not found", createFieldMethod != null);
 108         for (Class<?> c : classesWithInternalFields) {
 109             HotSpotResolvedObjectType type = HotSpotResolvedObjectType.fromObjectClass(c);
 110             for (ResolvedJavaField field : type.getInstanceFields(false)) {
 111                 if (field.isInternal()) {
 112                     HotSpotResolvedJavaField expected = (HotSpotResolvedJavaField) field;
 113                     ResolvedJavaField actual = (ResolvedJavaField) createFieldMethod.invoke(type, expected.getName(), expected.getType(), expected.offset(), expected.getModifiers());

 114                     Assert.assertEquals(expected, actual);
 115                 }
 116             }
 117         }
 118     }
 119 
 120     @Test
 121     public void testIsInObject() {
 122         for (Field f : String.class.getDeclaredFields()) {
 123             HotSpotResolvedJavaField rf = (HotSpotResolvedJavaField) getMetaAccess().lookupJavaField(f);
 124             Assert.assertEquals(rf.toString(), rf.isInObject("a string"), !rf.isStatic());
 125         }
 126     }
 127 }

  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.hotspot.test;
  24 
  25 import static java.lang.reflect.Modifier.FINAL;
  26 import static java.lang.reflect.Modifier.PRIVATE;
  27 import static java.lang.reflect.Modifier.PROTECTED;
  28 import static java.lang.reflect.Modifier.PUBLIC;
  29 import static java.lang.reflect.Modifier.STATIC;
  30 import static java.lang.reflect.Modifier.TRANSIENT;
  31 import static java.lang.reflect.Modifier.VOLATILE;
  32 
  33 import java.lang.reflect.Field;
  34 import java.lang.reflect.InvocationTargetException;
  35 import java.lang.reflect.Method;
  36 
  37 import org.junit.Assert;
  38 import org.junit.Test;
  39 import org.graalvm.compiler.core.common.util.Util;
  40 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  41 
  42 import jdk.vm.ci.hotspot.HotSpotResolvedJavaField;
  43 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  44 import jdk.vm.ci.meta.JavaType;
  45 import jdk.vm.ci.meta.ResolvedJavaField;
  46 
  47 /**
  48  * Tests {@link HotSpotResolvedJavaField} functionality.
  49  */
  50 public class HotSpotResolvedJavaFieldTest extends HotSpotGraalCompilerTest {
  51 
  52     private static final Class<?>[] classesWithInternalFields = {Class.class, ClassLoader.class};
  53 
  54     private static final Method createFieldMethod;
  55     private static final Field indexField;
  56 
  57     static {
  58         Method m = null;
  59         Field f = null;
  60         try {
  61             Class<?> typeImpl = Class.forName("jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl");
  62             m = typeImpl.getDeclaredMethod("createField", JavaType.class, long.class, int.class, int.class);
  63             Util.setAccessible(m, true);
  64             Class<?> fieldImpl = Class.forName("jdk.vm.ci.hotspot.HotSpotResolvedJavaFieldImpl");
  65             f = fieldImpl.getDeclaredField("index");
  66             Util.setAccessible(f, true);
  67         } catch (Exception e) {
  68             throw new AssertionError(e);
  69         }
  70 
  71         createFieldMethod = m;
  72         indexField = f;
  73     }
  74 
  75     /**
  76      * Same as {@code HotSpotModifiers.jvmFieldModifiers()} but works when using a JVMCI version
  77      * prior to the introduction of that method.
  78      */
  79     private int jvmFieldModifiers() {
  80         GraalHotSpotVMConfig config = runtime().getVMConfig();
  81         int accEnum = config.getConstant("JVM_ACC_ENUM", Integer.class, 0x4000);
  82         int accSynthetic = config.getConstant("JVM_ACC_SYNTHETIC", Integer.class, 0x1000);
  83         return PUBLIC | PRIVATE | PROTECTED | STATIC | FINAL | VOLATILE | TRANSIENT | accEnum | accSynthetic;
  84     }
  85 
  86     /**
  87      * Tests that {@link HotSpotResolvedJavaField#getModifiers()} only includes the modifiers
  88      * returned by {@link Field#getModifiers()}. Namely, it must not include
  89      * {@code HotSpotResolvedJavaField#FIELD_INTERNAL_FLAG}.
  90      */
  91     @Test
  92     public void testModifiersForInternal() {
  93         for (Class<?> c : classesWithInternalFields) {
  94             HotSpotResolvedObjectType type = HotSpotResolvedObjectType.fromObjectClass(c);
  95             for (ResolvedJavaField field : type.getInstanceFields(false)) {
  96                 if (field.isInternal()) {
  97                     Assert.assertEquals(0, ~jvmFieldModifiers() & field.getModifiers());
  98                 }
  99             }
 100         }
 101     }
 102 
 103     /**
 104      * Tests that {@code HotSpotResolvedObjectType#createField(String, JavaType, long, int)} always
 105      * returns an {@linkplain ResolvedJavaField#equals(Object) equivalent} object for an internal
 106      * field.
 107      *
 108      * @throws InvocationTargetException
 109      * @throws IllegalArgumentException
 110      * @throws IllegalAccessException
 111      */
 112     @Test
 113     public void testEquivalenceForInternalFields() throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {

 114         for (Class<?> c : classesWithInternalFields) {
 115             HotSpotResolvedObjectType type = HotSpotResolvedObjectType.fromObjectClass(c);
 116             for (ResolvedJavaField field : type.getInstanceFields(false)) {
 117                 if (field.isInternal()) {
 118                     HotSpotResolvedJavaField expected = (HotSpotResolvedJavaField) field;
 119                     int index = indexField.getInt(expected);
 120                     ResolvedJavaField actual = (ResolvedJavaField) createFieldMethod.invoke(type, expected.getType(), expected.offset(), expected.getModifiers(), index);
 121                     Assert.assertEquals(expected, actual);
 122                 }
 123             }
 124         }
 125     }
 126 
 127     @Test
 128     public void testIsInObject() {
 129         for (Field f : String.class.getDeclaredFields()) {
 130             HotSpotResolvedJavaField rf = (HotSpotResolvedJavaField) getMetaAccess().lookupJavaField(f);
 131             Assert.assertEquals(rf.toString(), rf.isInObject("a string"), !rf.isStatic());
 132         }
 133     }
 134 }