1 /* 2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 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 jdk.vm.ci.runtime.test; 24 25 import static java.lang.reflect.Modifier.isFinal; 26 import static java.lang.reflect.Modifier.isStatic; 27 28 import java.io.Serializable; 29 import java.lang.reflect.Array; 30 import java.lang.reflect.Field; 31 import java.lang.reflect.Method; 32 import java.util.AbstractCollection; 33 import java.util.AbstractList; 34 import java.util.ArrayDeque; 35 import java.util.ArrayList; 36 import java.util.Collection; 37 import java.util.Collections; 38 import java.util.HashMap; 39 import java.util.HashSet; 40 import java.util.IdentityHashMap; 41 import java.util.LinkedHashMap; 42 import java.util.LinkedList; 43 import java.util.List; 44 import java.util.Map; 45 import java.util.Queue; 46 import java.util.Set; 47 import java.util.TreeMap; 48 import java.util.stream.Collectors; 49 50 import jdk.vm.ci.meta.ConstantReflectionProvider; 51 import jdk.vm.ci.meta.JavaConstant; 52 import jdk.vm.ci.meta.JavaField; 53 import jdk.vm.ci.meta.MetaAccessProvider; 54 import jdk.vm.ci.meta.ResolvedJavaType; 55 import jdk.vm.ci.meta.TrustedInterface; 56 import jdk.vm.ci.runtime.JVMCI; 57 58 import org.junit.Test; 59 60 import sun.misc.Unsafe; 61 62 //JaCoCo Exclude 63 64 /** 65 * Context for type related tests. 66 */ 67 public class TypeUniverse { 68 69 public static final Unsafe unsafe; 70 public static final double JAVA_VERSION = Double.valueOf(System.getProperty("java.specification.version")); 71 72 public static final MetaAccessProvider metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess(); 73 public static final ConstantReflectionProvider constantReflection = JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection(); 74 public static final Collection<Class<?>> classes = new HashSet<>(); 75 public static final Set<ResolvedJavaType> javaTypes; 76 public static final Map<Class<?>, Class<?>> arrayClasses = new HashMap<>(); 77 78 private static List<ConstantValue> constants; 79 80 public class InnerClass { 81 82 } 83 84 public static class InnerStaticClass { 85 86 } 87 88 public static final class InnerStaticFinalClass { 89 90 } 91 92 private class PrivateInnerClass { 93 94 } 95 96 protected class ProtectedInnerClass { 97 98 } 99 100 static { 101 Unsafe theUnsafe = null; 102 try { 103 theUnsafe = Unsafe.getUnsafe(); 104 } catch (Exception e) { 105 try { 106 Field theUnsafeField = Unsafe.class.getDeclaredField("theUnsafe"); 107 theUnsafeField.setAccessible(true); 108 theUnsafe = (Unsafe) theUnsafeField.get(null); 109 } catch (Exception e1) { 110 throw (InternalError) new InternalError("unable to initialize unsafe").initCause(e1); 111 } 112 } 113 unsafe = theUnsafe; 114 115 Class<?>[] initialClasses = {void.class, boolean.class, byte.class, short.class, char.class, int.class, float.class, long.class, double.class, Object.class, Class.class, boolean[].class, 116 byte[].class, short[].class, char[].class, int[].class, float[].class, long[].class, double[].class, Object[].class, Class[].class, List[].class, boolean[][].class, 117 byte[][].class, short[][].class, char[][].class, int[][].class, float[][].class, long[][].class, double[][].class, Object[][].class, Class[][].class, List[][].class, 118 ClassLoader.class, String.class, Serializable.class, Cloneable.class, Test.class, TestMetaAccessProvider.class, List.class, Collection.class, Map.class, Queue.class, 119 HashMap.class, LinkedHashMap.class, IdentityHashMap.class, AbstractCollection.class, AbstractList.class, ArrayList.class, TrustedInterface.class, InnerClass.class, 120 InnerStaticClass.class, InnerStaticFinalClass.class, PrivateInnerClass.class, ProtectedInnerClass.class}; 121 for (Class<?> c : initialClasses) { 122 addClass(c); 123 } 124 125 javaTypes = Collections.unmodifiableSet(classes.stream().map(c -> metaAccess.lookupJavaType(c)).collect(Collectors.toSet())); 126 } 127 128 static class ConstantsUniverse { 129 static final Object[] ARRAYS = classes.stream().map(c -> c != void.class && !c.isArray() ? Array.newInstance(c, 42) : null).filter(o -> o != null).collect(Collectors.toList()).toArray(); 130 static final Object CONST1 = new ArrayList<>(); 131 static final Object CONST2 = new ArrayList<>(); 132 static final Object CONST3 = new IdentityHashMap<>(); 133 static final Object CONST4 = new LinkedHashMap<>(); 134 static final Object CONST5 = new TreeMap<>(); 135 static final Object CONST6 = new ArrayDeque<>(); 136 static final Object CONST7 = new LinkedList<>(); 137 static final Object CONST8 = "a string"; 138 static final Object CONST9 = 42; 139 static final Object CONST10 = String.class; 140 static final Object CONST11 = String[].class; 141 } 142 143 public static List<ConstantValue> constants() { 144 if (constants == null) { 145 List<ConstantValue> res = readConstants(JavaConstant.class); 146 res.addAll(readConstants(ConstantsUniverse.class)); 147 constants = res; 148 } 149 return constants; 150 } 151 152 public static class ConstantValue { 153 public final String name; 154 public final JavaConstant value; 155 public final Object boxed; 156 157 public ConstantValue(String name, JavaConstant value, Object boxed) { 158 this.name = name; 159 this.value = value; 160 this.boxed = boxed; 161 } 162 163 @Override 164 public String toString() { 165 return name + "=" + value; 166 } 167 168 public String getSimpleName() { 169 return name.substring(name.lastIndexOf('.') + 1); 170 } 171 } 172 173 /** 174 * Reads the value of all {@code static final} fields from a given class into an array of 175 * {@link ConstantValue}s. 176 */ 177 public static List<ConstantValue> readConstants(Class<?> fromClass) { 178 try { 179 List<ConstantValue> res = new ArrayList<>(); 180 for (Field field : fromClass.getDeclaredFields()) { 181 if (isStatic(field.getModifiers()) && isFinal(field.getModifiers())) { 182 JavaField javaField = metaAccess.lookupJavaField(field); 183 Object boxed = field.get(null); 184 if (boxed instanceof JavaConstant) { 185 res.add(new ConstantValue(javaField.format("%H.%n"), (JavaConstant) boxed, boxed)); 186 } else { 187 JavaConstant value = constantReflection.readConstantFieldValue(javaField, null); 188 if (value != null) { 189 res.add(new ConstantValue(javaField.format("%H.%n"), value, boxed)); 190 if (boxed instanceof Object[]) { 191 Object[] arr = (Object[]) boxed; 192 for (int i = 0; i < arr.length; i++) { 193 JavaConstant element = constantReflection.readArrayElement(value, i); 194 if (element != null) { 195 res.add(new ConstantValue(javaField.format("%H.%n[" + i + "]"), element, arr[i])); 196 } 197 } 198 } 199 } 200 } 201 } 202 } 203 return res; 204 } catch (Exception e) { 205 throw new AssertionError(e); 206 } 207 } 208 209 public synchronized Class<?> getArrayClass(Class<?> componentType) { 210 Class<?> arrayClass = arrayClasses.get(componentType); 211 if (arrayClass == null) { 212 arrayClass = Array.newInstance(componentType, 0).getClass(); 213 arrayClasses.put(componentType, arrayClass); 214 } 215 return arrayClass; 216 } 217 218 public static int dimensions(Class<?> c) { 219 if (c.getComponentType() != null) { 220 return 1 + dimensions(c.getComponentType()); 221 } 222 return 0; 223 } 224 225 private static void addClass(Class<?> c) { 226 if (classes.add(c)) { 227 if (c.getSuperclass() != null) { 228 addClass(c.getSuperclass()); 229 } 230 for (Class<?> sc : c.getInterfaces()) { 231 addClass(sc); 232 } 233 for (Class<?> dc : c.getDeclaredClasses()) { 234 addClass(dc); 235 } 236 for (Method m : c.getDeclaredMethods()) { 237 addClass(m.getReturnType()); 238 for (Class<?> p : m.getParameterTypes()) { 239 addClass(p); 240 } 241 } 242 243 if (c != void.class && dimensions(c) < 2) { 244 Class<?> arrayClass = Array.newInstance(c, 0).getClass(); 245 arrayClasses.put(c, arrayClass); 246 addClass(arrayClass); 247 } 248 } 249 } 250 }