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.MetaAccessProvider;
53 import jdk.vm.ci.meta.ResolvedJavaField;
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 ResolvedJavaField 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 }