1 /*
2 * Copyright (c) 2016, 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
24 /*
25 * @test
26 * @run testng/othervm -XX:+EnableMVT -XX:+ValueArrayFlatten MVTTest
27 * @run testng/othervm -XX:+EnableMVT -XX:-ValueArrayFlatten MVTTest
28 * @run testng/othervm -XX:+EnableMVT -Dvalhalla.enableValueLambdaForms=true MVTTest
29 * @run testng/othervm -XX:+EnableMVT -Dvalhalla.enableValueLambdaForms=true -Dvalhalla.enablePoolPatches=true MVTTest
30 */
31
32 import jdk.experimental.value.ValueType;
33 import org.testng.annotations.Test;
34 import valhalla.shady.MinimalValueTypes_1_0;
35
36 import java.lang.invoke.MethodHandle;
37 import java.lang.invoke.MethodHandles;
38 import java.lang.reflect.Field;
39
40 import static java.lang.invoke.MethodType.methodType;
41 import static org.testng.Assert.assertEquals;
42
43 @Test
44 public class MVTTest {
45 static final Class<?> DVT;
46
47 static final ValueType<?> VT = ValueType.forClass(Point.class);
48
49 static final Class<?>[] FIELD_TYPES;
50
51 static final String[] FIELD_NAMES;
52
53 static String TEMPLATE = "Point[x=#x, y=#y, z=#z]";
54
55 static final Object[] FIELD_VALUES = {42, (short) 43, (short) 44};
56
57 static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
58
59 static final MethodHandle PRINT_POINT;
60
61 static {
62 DVT = MinimalValueTypes_1_0.getValueTypeClass(Point.class);
63
64 Field[] fs = Point.class.getFields();
65
66 FIELD_TYPES = new Class<?>[fs.length];
67 FIELD_NAMES = new String[fs.length];
68
69 for (int i = 0; i < fs.length; i++) {
70 FIELD_TYPES[i] = fs[i].getType();
71 FIELD_NAMES[i] = fs[i].getName();
72 }
73
74 try {
75 PRINT_POINT = LOOKUP.findStatic(MVTTest.class, "print", methodType(String.class, Point.class))
76 .asType(methodType(String.class, DVT));
77 }
78 catch (Exception e) {
79 throw new RuntimeException(e);
80 }
81 }
82
83 public void testDefaultValue() throws Throwable {
84 for (int i = 0; i < FIELD_NAMES.length; i++) {
85 MethodHandle getter = MethodHandles.collectArguments(
86 VT.findGetter(LOOKUP, FIELD_NAMES[i], FIELD_TYPES[i]),
87 0,
88 VT.defaultValueConstant());
89
90 assertEquals((int) getter.invoke(), 0);
91 }
92 }
93
94 public void testWither() throws Throwable {
95 testWither(Point.lookup());
96 testWither(MethodHandles.privateLookupIn(VT.boxClass(), LOOKUP));
97 testWither(MethodHandles.privateLookupIn(VT.valueClass(), LOOKUP));
98 }
99
100 void testWither(MethodHandles.Lookup l ) throws Throwable {
101 for (int i = 0; i < FIELD_NAMES.length; i++) {
102 MethodHandle wither = MethodHandles.collectArguments(
103 VT.findWither(l, FIELD_NAMES[i], FIELD_TYPES[i]), 0, VT.defaultValueConstant());
104 String expected = TEMPLATE.replace("#" + FIELD_NAMES[i], String.valueOf(FIELD_VALUES[i]))
105 .replaceAll("#[xyz]", "0");
106
107 assertEquals(printReturn(wither).invoke(FIELD_VALUES[i]), expected);
108 }
109 }
110
111 public void testSubstitutability() throws Throwable {
112 Point[] pts = {new Point(1, (short) 6, (short) 3), new Point(1, (short) 2, (short) 3)};
113
114 MethodHandle substTest = VT.substitutabilityTest();
115 for (Point p1 : pts) {
116 for (Point p2 : pts) {
117 assertEquals((boolean) substTest.invoke(p1, p2), p1.equals(p2));
118 }
119 }
120
121 MethodHandle hash = VT.substitutabilityHashCode();
122 for (Point p1 : pts) {
123 for (Point p2 : pts) {
124 boolean vHashEq = (int) hash.invoke(p1) == (int) hash.invoke(p2);
125 boolean rHashEq = p1.hashCode() == p2.hashCode();
126 assertEquals(vHashEq, rHashEq);
127 }
128 }
129 }
130
131 public void testIdentity() throws Throwable {
132 String actual = (String) printReturn(MethodHandles.identity(VT.valueClass()))
133 .invoke(new Point(1, (short) 2, (short) 3));
134 assertEquals(actual, "Point[x=1, y=2, z=3]");
135 }
136
137 public void testZero() throws Throwable {
138 String actual = (String) printReturn(MethodHandles.zero(VT.valueClass()))
139 .invoke();
140 assertEquals(actual, "Point[x=0, y=0, z=0]");
141 }
142
143 public void testEmpty() throws Throwable {
144 String actual = (String) printReturn(MethodHandles.empty(methodType(VT.valueClass(), int.class, String.class)))
145 .invoke(1, "");
146 assertEquals(actual, "Point[x=0, y=0, z=0]");
147 }
148
149 public void testArray1D() throws Throwable {
150 //test monodimensional array
151 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
152 for (int i = 0; i < 10; i++) {
153 Point p = new Point(i, (short) 9, (short) 9);
154 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p);
155 }
156 for (int i = 0; i < 10; i++) {
157 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
158 .invoke(arr, i);
159 String expected = TEMPLATE.replace("#x", String.valueOf(i))
160 .replaceAll("#[yz]", "9");
161 assertEquals(actual, expected);
162 }
163 }
164
165 public void testArray10D() throws Throwable {
166 //test multidimensional array
167 Object[] arr2 = (Object[]) MethodHandles.arrayConstructor(VT.arrayValueClass(2)).invoke(10);
168 for (int i = 0; i < 10; i++) {
169 Object innerArr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
170 MethodHandles.arrayElementSetter(VT.arrayValueClass(2)).invoke(arr2, i, innerArr);
171 for (int j = 0; i < 10; i++) {
172 Point p = new Point(i, (short) j, (short) 9);
173 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p);
174 }
175 }
176 for (int i = 0; i < 10; i++) {
177 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr2, i);
178 for (int j = 0; i < 10; i++) {
179 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
180 .invoke(innerArr, i);
181 String expected = TEMPLATE.replace("#x", String.valueOf(i))
182 .replace("#y", String.valueOf(j))
183 .replace("#z", "9");
184 assertEquals(actual, expected);
185 }
186 }
187 }
188
189 public void testMultiArray() throws Throwable {
190 Object[] arr43 = (Object[]) VT.newMultiArray(2).invoke(4, 3);
191 for (int i = 0; i < 4; i++) {
192 Object innerArr = arr43[i];
193 for (int j = 0; i < 3; i++) {
194 Point p = new Point(i, (short) j, (short) 9);
195 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p);
196 }
197 }
198 for (int i = 0; i < 4; i++) {
199 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr43, i);
200 for (int j = 0; i < 3; i++) {
201 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
202 .invoke(innerArr, i);
203 String expected = TEMPLATE.replace("#x", String.valueOf(i))
204 .replace("#y", String.valueOf(j))
205 .replace("#z", "9");
206 assertEquals(actual, expected);
207 }
208 }
209 }
210
211 public void testLoop() throws Throwable {
212 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
213 for (int i = 0; i < 10; i++) {
214 Point p = new Point(i, (short) 9, (short) 9);
215 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p);
216 }
217
218 /*
219 iters -> (Point[] )int
220
221 init -> (Point[] )int
222
223 sum -> (int, int, int, int)int
224 a -> (int, Point, Point, Point)int
225 b -> (int, Point)int
226 c -> (int, Point[], int)int
227 body -> (int, int, Point[])int
228 */
229
230 MethodHandle iters = MethodHandles.arrayLength(VT.arrayValueClass());
231
232 MethodHandle init = MethodHandles.dropArguments(MethodHandles.constant(int.class, 0),
233 0,
234 VT.arrayValueClass());
235
236 MethodHandle sum = LOOKUP.findStatic(MVTTest.class,
237 "sum",
238 methodType(int.class, int.class, int.class, short.class, short.class));
239
240 MethodHandle a = MethodHandles.filterArguments(sum, 1,
241 VT.findGetter(LOOKUP, FIELD_NAMES[0], FIELD_TYPES[0]),
242 VT.findGetter(LOOKUP, FIELD_NAMES[1], FIELD_TYPES[1]),
243 VT.findGetter(LOOKUP, FIELD_NAMES[2], FIELD_TYPES[2]));
244
245 MethodHandle b = MethodHandles.permuteArguments(a,
246 methodType(int.class, int.class, VT.valueClass()),
247 0, 1, 1, 1);
248
249 MethodHandle c = MethodHandles.collectArguments(b,
250 1,
251 MethodHandles.arrayElementGetter(VT.arrayValueClass()));
252
253 MethodHandle body = MethodHandles.permuteArguments(c,
254 methodType(int.class, int.class, int.class, VT.arrayValueClass()),
255 0, 2, 1);
256
257 MethodHandle loop = MethodHandles.countedLoop(iters, init, body);
258 int actual = (int) loop.invoke(arr);
259 int expected = 9 * 10 * 2 + 10 * (0 + 9) / 2;
260 assertEquals(actual, expected);
261 }
262
263 static int sum(int v, int x, short y, short z) {
264 return v + x + y + z;
265 }
266
267 static MethodHandle printReturn(MethodHandle mh) {
268 return MethodHandles.filterReturnValue(mh, PRINT_POINT);
269 }
270
271 static String print(Point p) {
272 return String.format("Point[x=%d, y=%d, z=%d]", p.x, p.y, p.z);
273 }
274 }