1 /*
  2  * Copyright (c) 2024, 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 TestConstants
 27  */
 28 
 29 import org.testng.Assert;
 30 import org.testng.annotations.DataProvider;
 31 import org.testng.annotations.Test;
 32 
 33 import java.lang.reflect.code.OpTransformer;
 34 import java.lang.reflect.code.op.CoreOp;
 35 import java.lang.reflect.code.Op;
 36 import java.lang.reflect.code.interpreter.Interpreter;
 37 import java.lang.reflect.Method;
 38 import java.lang.runtime.CodeReflection;
 39 import java.util.List;
 40 import java.util.Optional;
 41 import java.util.stream.Stream;
 42 
 43 public class TestConstants {
 44 
 45     @CodeReflection
 46     public static boolean c_boolean() {
 47         return true;
 48     }
 49 
 50     @CodeReflection
 51     public static boolean c_boolean_f() {
 52         return false;
 53     }
 54 
 55     @CodeReflection
 56     public static byte c_byte() {
 57         return 42;
 58     }
 59 
 60     @CodeReflection
 61     public static byte c_byte_neg() {
 62         return -42;
 63     }
 64 
 65     @CodeReflection
 66     public static short c_short() {
 67         return 42;
 68     }
 69 
 70     @CodeReflection
 71     public static short c_short_neg() {
 72         return -42;
 73     }
 74 
 75     @CodeReflection
 76     public static char c_char() {
 77         return 'A';
 78     }
 79 
 80     @CodeReflection
 81     public static int c_int() {
 82         return 42;
 83     }
 84 
 85     @CodeReflection
 86     public static int c_int_neg() {
 87         return -42;
 88     }
 89 
 90     @CodeReflection
 91     public static long c_long() {
 92         return 42L;
 93     }
 94 
 95     @CodeReflection
 96     public static long c_long_neg() {
 97         return -42L;
 98     }
 99 
100     @CodeReflection
101     public static float c_float() {
102         return 1.0f;
103     }
104 
105     @CodeReflection
106     public static float c_float_neg() {
107         return -1.0f;
108     }
109 
110     @CodeReflection
111     public static double c_double() {
112         return 1.0;
113     }
114 
115     @CodeReflection
116     public static double c_double_neg() {
117         return -1.0;
118     }
119 
120     @CodeReflection
121     public static String c_String() {
122         String s = "42";
123         s = null;
124         return s;
125     }
126 
127     @CodeReflection
128     public static Class<?> c_Class() {
129         return String.class;
130     }
131 
132     @CodeReflection
133     public static Class<?> c_Class_primitive() {
134         return float.class;
135     }
136 
137     @DataProvider
138     static Object[][] provider() {
139         return new Object[][] {
140                 { boolean.class },
141                 { byte.class },
142                 { short.class },
143                 { char.class },
144                 { int.class },
145                 { long.class },
146                 { float.class },
147                 { double.class },
148                 { String.class },
149                 { Class.class }
150         };
151     }
152 
153     @Test(dataProvider = "provider")
154     public void testString(Class<?> c) throws Exception {
155         String name = "c_" + c.getSimpleName();
156         List<Method> ms = Stream.of(TestConstants.class.getDeclaredMethods())
157                 .filter(m -> m.getName().startsWith(name))
158                 .toList();
159 
160         for (Method m : ms) {
161             CoreOp.FuncOp f = m.getCodeModel().get();
162 
163             f.writeTo(System.out);
164 
165             Assert.assertEquals(Interpreter.invoke(f), m.invoke(null));
166         }
167     }
168 
169     @CodeReflection
170     public static String compareNull(String s) {
171         if (s == null) {
172             return "NULL";
173         } else {
174             return s;
175         }
176     }
177 
178     @Test
179     public void testCompareNull() {
180         CoreOp.FuncOp f = getFuncOp("compareNull");
181 
182         f.writeTo(System.out);
183 
184         CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
185 
186         lf.writeTo(System.out);
187 
188         Assert.assertEquals(Interpreter.invoke(lf, (Object) null), compareNull(null));
189     }
190 
191     static CoreOp.FuncOp getFuncOp(String name) {
192         Optional<Method> om = Stream.of(TestConstants.class.getDeclaredMethods())
193                 .filter(m -> m.getName().equals(name))
194                 .findFirst();
195 
196         Method m = om.get();
197         return m.getCodeModel().get();
198     }
199 }