| /* |
| * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.nodes.test; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.graalvm.compiler.core.common.type.ObjectStamp; |
| import org.graalvm.compiler.core.common.type.Stamp; |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.core.common.type.TypeReference; |
| import org.graalvm.compiler.nodes.type.StampTool; |
| |
| public class ObjectStampJoinTest extends AbstractObjectStampTest { |
| |
| // class A |
| // class B extends A |
| // class C extends B implements I |
| // class D extends A |
| // abstract class E extends A |
| // interface I |
| |
| @Test |
| public void testJoin0() { |
| Stamp a = StampFactory.object(getType(A.class)); |
| Stamp b = StampFactory.object(getType(B.class)); |
| Assert.assertEquals(b, join(a, b)); |
| } |
| |
| @Test |
| public void testJoin1() { |
| Stamp aNonNull = StampFactory.objectNonNull(getType(A.class)); |
| Stamp b = StampFactory.object(getType(B.class)); |
| Stamp bNonNull = StampFactory.objectNonNull(getType(B.class)); |
| Assert.assertEquals(bNonNull, join(aNonNull, b)); |
| } |
| |
| @Test |
| public void testJoin2() { |
| Stamp aExact = StampFactory.objectNonNull(getType(A.class).asExactReference()); |
| Stamp b = StampFactory.object(getType(B.class)); |
| Assert.assertEquals(StampFactory.empty(JavaKind.Object), join(aExact, b)); |
| } |
| |
| @Test |
| public void testJoin3() { |
| Stamp d = StampFactory.object(getType(D.class)); |
| Stamp c = StampFactory.object(getType(C.class)); |
| Assert.assertTrue(StampTool.isPointerAlwaysNull(join(c, d))); |
| } |
| |
| @Test |
| public void testJoin4() { |
| Stamp dExactNonNull = StampFactory.objectNonNull(getType(D.class)); |
| Stamp c = StampFactory.object(getType(C.class)); |
| Assert.assertEquals(StampFactory.empty(JavaKind.Object), join(c, dExactNonNull)); |
| } |
| |
| @Test |
| public void testJoin5() { |
| Stamp dExact = StampFactory.object(getType(D.class).asExactReference()); |
| Stamp c = StampFactory.object(getType(C.class)); |
| Stamp join = join(c, dExact); |
| Assert.assertTrue(StampTool.isPointerAlwaysNull(join)); |
| Assert.assertNull(StampTool.typeReferenceOrNull(join)); |
| Assert.assertFalse(StampTool.isExactType(join)); |
| } |
| |
| @Test |
| public void testJoin6() { |
| Stamp dExactNonNull = StampFactory.objectNonNull(getType(D.class).asExactReference()); |
| Stamp alwaysNull = StampFactory.alwaysNull(); |
| Stamp join = join(alwaysNull, dExactNonNull); |
| Assert.assertFalse(join.hasValues()); |
| Assert.assertFalse(StampTool.isPointerAlwaysNull(join)); |
| } |
| |
| @Test |
| public void testJoin7() { |
| Stamp aExact = StampFactory.object(getType(A.class).asExactReference()); |
| Stamp e = StampFactory.object(getType(E.class)); |
| Stamp join = join(aExact, e); |
| Assert.assertTrue(StampTool.isPointerAlwaysNull(join)); |
| Assert.assertNull(StampTool.typeReferenceOrNull(join)); |
| Assert.assertFalse(StampTool.isExactType(join)); |
| } |
| |
| @Test |
| public void testJoin8() { |
| Stamp bExact = StampFactory.objectNonNull(getType(B.class).asExactReference()); |
| Stamp dExact = StampFactory.object(getType(D.class).asExactReference()); |
| Stamp join = join(bExact, dExact); |
| Assert.assertFalse(join.hasValues()); |
| } |
| |
| @Test |
| public void testJoin9() { |
| Stamp bExact = StampFactory.object(getType(B.class).asExactReference()); |
| Stamp dExact = StampFactory.object(getType(D.class).asExactReference()); |
| Stamp join = join(bExact, dExact); |
| Assert.assertTrue(StampTool.isPointerAlwaysNull(join)); |
| Assert.assertNull(StampTool.typeReferenceOrNull(join)); |
| Assert.assertNull(StampTool.typeReferenceOrNull(join)); |
| } |
| |
| @Test |
| public void testJoinInterfaceSimple() { |
| // Tests joining of interface |
| testJoinInterface(A.class, B.class, I.class); |
| } |
| |
| @Test |
| public void testJoinInterfaceArray() { |
| // Tests joining of arrays interface |
| testJoinInterface(A[].class, B[].class, I[].class); |
| } |
| |
| @Test |
| public void testJoinInterfaceMultiArray() { |
| // Tests joining of multidimensional arrays of interface |
| testJoinInterface(A[][].class, B[][].class, I[][].class); |
| } |
| |
| private void testJoinInterface(Class<?> typeA, Class<?> typeB, Class<?> typeI) { |
| testJoinInterface0(typeA, typeI); |
| testJoinInterface1(typeA, typeI); |
| testJoinInterface2(typeB, typeI); |
| testJoinInterface3(typeB, typeI); |
| } |
| |
| private void testJoinInterface0(Class<?> typeA, Class<?> typeI) { |
| Stamp a = StampFactory.object(getType(typeA)); |
| Stamp i = StampFactory.object(getType(typeI)); |
| Assert.assertNotSame(StampFactory.empty(JavaKind.Object), join(a, i)); |
| } |
| |
| private void testJoinInterface1(Class<?> typeA, Class<?> typeI) { |
| Stamp aNonNull = StampFactory.objectNonNull(getType(typeA)); |
| Stamp i = StampFactory.object(getType(typeI)); |
| Stamp join = join(aNonNull, i); |
| Assert.assertTrue(join instanceof ObjectStamp); |
| Assert.assertTrue(((ObjectStamp) join).nonNull()); |
| } |
| |
| private void testJoinInterface2(Class<?> typeB, Class<?> typeI) { |
| Stamp bExact = StampFactory.objectNonNull(getType(typeB).asExactReference()); |
| Stamp i = StampFactory.object(getType(typeI)); |
| Stamp join = join(i, bExact); |
| Assert.assertEquals(StampFactory.empty(JavaKind.Object), join); |
| } |
| |
| private void testJoinInterface3(Class<?> typeB, Class<?> typeI) { |
| Stamp bExact = StampFactory.objectNonNull(getType(typeB).asExactReference()); |
| // Create non-trusted reference. |
| Stamp i = StampFactory.object(TypeReference.createWithoutAssumptions(getType(typeI).getType())); |
| Stamp join = join(i, bExact); |
| Assert.assertEquals(bExact, join); |
| } |
| |
| } |