/*
* Copyright (c) 2015, 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 com.oracle.truffle.api.dsl.test;
import static com.oracle.truffle.api.dsl.test.TestHelper.createCallTarget;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import com.oracle.truffle.api.CallTarget;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.dsl.test.NullLiteralGuardsTestFactory.CompareNotNullNodeFactory;
import com.oracle.truffle.api.dsl.test.NullLiteralGuardsTestFactory.CompareObjectsNullNodeFactory;
import com.oracle.truffle.api.dsl.test.NullLiteralGuardsTestFactory.CompareStringNullNodeFactory;
import com.oracle.truffle.api.dsl.test.TypeSystemTest.ChildrenNode;
@SuppressWarnings("unused")
public class NullLiteralGuardsTest {
@Test
public void testCompareObjectsNull() {
CallTarget root = createCallTarget(CompareObjectsNullNodeFactory.getInstance());
assertEquals("do1", root.call((Object) null));
assertEquals("do2", root.call("42"));
}
abstract static class CompareObjectsNullNode extends ChildrenNode {
@Specialization(guards = "value == null")
String do1(Object value) {
return "do1";
}
@Specialization
String do2(Object value) {
return "do2";
}
}
@Test
public void testCompareStringNull() {
CallTarget root = createCallTarget(CompareStringNullNodeFactory.getInstance());
assertEquals("do1", root.call("42"));
assertEquals("do2", root.call((Object) null));
}
abstract static class CompareStringNullNode extends ChildrenNode {
@Specialization(guards = "value != null")
String do1(String value) {
return "do1";
}
@Specialization
String do2(Object value) {
return "do2";
}
}
@Test
public void testCompareNotNull() {
CallTarget root = createCallTarget(CompareNotNullNodeFactory.getInstance());
assertEquals("do1", root.call("42"));
assertEquals("do2", root.call((Object) null));
}
abstract static class CompareNotNullNode extends ChildrenNode {
@Specialization(guards = "value != null")
String do1(Object value) {
return "do1";
}
@Specialization
String do2(Object value) {
return "do2";
}
}
abstract static class ErrorNullIntComparison1 extends ChildrenNode {
@ExpectError("Error parsing expression 'value == null': Incompatible operand types int and null.")
@Specialization(guards = "value == null")
String do1(int value) {
return "do1";
}
}
abstract static class ErrorNullIntComparison2 extends ChildrenNode {
@ExpectError("Error parsing expression '1 == null': Incompatible operand types int and null.")
@Specialization(guards = "1 == null")
String do1(int value) {
return "do1";
}
}
abstract static class ErrorNullNullComparison extends ChildrenNode {
@ExpectError("Error parsing expression 'null == null': The operator == is undefined for the argument type(s) null null.")
@Specialization(guards = "null == null")
String do1(int value) {
return "do1";
}
}
abstract static class ErrorObjectVoidComparison extends ChildrenNode {
protected static void returnVoid() {
}
@ExpectError("Error parsing expression 'value == returnVoid()': Incompatible operand types Object and void.")
@Specialization(guards = "value == returnVoid()")
String do1(Object value) {
return "do1";
}
}
}