1 /* 2 * Copyright (c) 2010, 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 * @bug 7006109 27 * @summary Add test library to simplify the task of writing automated type-system tests 28 * @author mcimadamore 29 * @library /tools/lib/types 30 * @modules jdk.compiler/com.sun.tools.javac.code 31 * jdk.compiler/com.sun.tools.javac.comp 32 * jdk.compiler/com.sun.tools.javac.file 33 * jdk.compiler/com.sun.tools.javac.util 34 * jdk.compiler/com.sun.tools.javac.main 35 * jdk.compiler/com.sun.tools.javac.tree 36 * @build TypeHarness 37 * @run main CastTest 38 */ 39 40 import com.sun.tools.javac.code.Type; 41 import java.lang.reflect.Array; 42 43 import static com.sun.tools.javac.code.Flags.*; 44 45 /** 46 * Check invariants in cast conversion involving primitive types and arrays 47 */ 48 public class CastTest extends TypeHarness { 49 50 Type[] types_no_boxing; 51 Type[] types_boxing; 52 53 static final boolean T = true; 54 static final boolean F = false; 55 56 boolean[][] cast_result_no_boxing = { 57 //byte, short, int, long, float, double, char, bool, C, +C, I, T, byte[], short[], int[], long[], float[], double[], char[], bool[], C[], +C[], I[], T[] 58 /*byte*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 59 /*short*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 60 /*int*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 61 /*long*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 62 /*float*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 63 /*double*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 64 /*char*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 65 /*bool*/ { F , F , F , F , F , F , F , T , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F }, 66 /*C*/ { F , F , F , F , F , F , F , F , T, F , T, T, F , F , F , F , F , F , F , F , F , F , F , F }, 67 /*+C*/ { F , F , F , F , F , F , F , F , F, T , F, T, F , F , F , F , F , F , F , F , F , F , F , F }, 68 /*I*/ { F , F , F , F , F , F , F , F , T, F , T, T, F , F , F , F , F , F , F , F , F , F , F , F }, 69 /*T*/ { T , T , T , T , T , T , T , T , T, T , T, T, T , T , T , T , T , T , T , T , T , T , T , T }, 70 /*byte[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, T , F , F , F , F , F , F , F , F , F , F , F }, 71 /*short[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , T , F , F , F , F , F , F , F , F , F , F }, 72 /*int[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , T , F , F , F , F , F , F , F , F , F }, 73 /*long[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , T , F , F , F , F , F , F , F , F }, 74 /*float[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , T , F , F , F , F , F , F , F }, 75 /*double[]*/{ F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , T , F , F , F , F , F , F }, 76 /*char[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , T , F , F , F , F , F }, 77 /*bool[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , T , F , F , F , F }, 78 /*C[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , F , T , T }, 79 /*+C[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , F , T , F , T }, 80 /*I[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , F , T , T }, 81 /*T[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , T , T , T }}; 82 83 boolean[][] cast_result_boxing = { 84 //byte, short, int, long, float, double, char, bool, Byte, Short, Integer, Long, Float, Double, Character, Boolean, Object 85 /*byte*/ { T , T , T , T , T , T , T , F , T , F , F , F , F , F , F , F , T }, 86 /*short*/ { T , T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , T }, 87 /*int*/ { T , T , T , T , T , T , T , F , F , F , T , F , F , F , F , F , T }, 88 /*long*/ { T , T , T , T , T , T , T , F , F , F , F , T , F , F , F , F , T }, 89 /*float*/ { T , T , T , T , T , T , T , F , F , F , F , F , T , F , F , F , T }, 90 /*double*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , T , F , F , T }, 91 /*char*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T }, 92 /*bool*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T }, 93 /*Byte*/ { T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , F , T }, 94 /*Short*/ { F , T , T , T , T , T , F , F , F , T , F , F , F , F , F , F , T }, 95 /*Integer*/ { F , F , T , T , T , T , F , F , F , F , T , F , F , F , F , F , T }, 96 /*Long*/ { F , F , F , T , T , T , F , F , F , F , F , T , F , F , F , F , T }, 97 /*Float*/ { F , F , F , F , T , T , F , F , F , F , F , F , T , F , F , F , T }, 98 /*Double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , T , F , F , T }, 99 /*Character*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T }, 100 /*Boolean*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T }, 101 /*Object*/ { T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T }}; CastTest()102 CastTest() { 103 Type[] primitiveTypes = { 104 predef.byteType, 105 predef.shortType, 106 predef.intType, 107 predef.longType, 108 predef.floatType, 109 predef.doubleType, 110 predef.charType, 111 predef.booleanType }; 112 113 Type[] boxedTypes = new Type[primitiveTypes.length + 1]; 114 for (int i = 0 ; i < primitiveTypes.length ; i++) { 115 boxedTypes[i] = box(primitiveTypes[i]); 116 } 117 118 boxedTypes[primitiveTypes.length] = predef.objectType; 119 120 types_boxing = join(Type.class, primitiveTypes, boxedTypes); 121 122 Type[] referenceTypes = { 123 fac.Class(), 124 fac.Class(FINAL), 125 fac.Interface(), 126 fac.TypeVariable() }; 127 128 Type[] arrayTypes = new Type[primitiveTypes.length + referenceTypes.length]; 129 int idx = 0; 130 for (Type t : join(Type.class, primitiveTypes, referenceTypes)) { 131 arrayTypes[idx++] = fac.Array(t); 132 } 133 134 types_no_boxing = join(Type.class, primitiveTypes, referenceTypes, arrayTypes); 135 } 136 test(Type[] all_types, boolean[][] cast_result)137 void test(Type[] all_types, boolean[][] cast_result) { 138 for (int i = 0; i < all_types.length ; i++) { 139 for (int j = 0; j < all_types.length ; j++) { 140 assertCastable(all_types[i], all_types[j], cast_result[i][j]); 141 } 142 } 143 } 144 runTests()145 void runTests() { 146 test(types_no_boxing, cast_result_no_boxing); 147 test(types_boxing, cast_result_boxing); 148 } 149 150 @SuppressWarnings("unchecked") join(Class<T> type, T[]... args)151 <T> T[] join(Class<T> type, T[]... args) { 152 int totalLength = 0; 153 for (T[] arr : args) { 154 totalLength += arr.length; 155 } 156 T[] new_arr = (T[])Array.newInstance(type, totalLength); 157 int idx = 0; 158 for (T[] arr : args) { 159 System.arraycopy(arr, 0, new_arr, idx, arr.length); 160 idx += arr.length; 161 } 162 return new_arr; 163 } 164 main(String[] args)165 public static void main(String[] args) { 166 new CastTest().runTests(); 167 } 168 } 169