Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/types/CastTest.java
test/tools/javac/types/CastTest.java
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| 1 /* | |
| 2 * Copyright (c) 2010, 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 . | |
| 30 * @run main CastTest | |
| 31 */ | |
| 32 | |
| 33 import com.sun.tools.javac.code.Type; | |
| 34 import com.sun.tools.javac.code.Type.*; | |
| 35 import com.sun.tools.javac.code.Symbol.*; | |
| 36 import java.lang.reflect.Array; | |
| 37 | |
| 38 import static com.sun.tools.javac.code.Flags.*; | |
| 39 | |
| 40 /** | |
| 41 * Check invariants in cast conversion involving primitive types and arrays | |
| 42 */ | |
| 43 public class CastTest extends TypeHarness { | |
| 44 | |
| 45 Type[] types_no_boxing; | |
| 46 Type[] types_boxing; | |
| 47 | |
| 48 static final boolean T = true; | |
| 49 static final boolean F = false; | |
| 50 | |
| 51 boolean[][] cast_result_no_boxing = { | |
| 52 //byte, short, int, long, float, double, char, bool, C, +C, I, T, byte[], short[], int[], long[], float[], double[], char[], bool[], C[], +C[], I[], T[] | |
| 53 /*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 }, | |
| 54 /*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 }, | |
| 55 /*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 }, | |
| 56 /*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 }, | |
| 57 /*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 }, | |
| 58 /*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 }, | |
| 59 /*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 }, | |
| 60 /*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 }, | |
| 61 /*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 }, | |
| 62 /*+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 }, | |
| 63 /*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 }, | |
| 64 /*T*/ { F , F , F , F , F , F , F , F , T, T , T, T, T , T , T , T , T , T , T , T , T , T , T , T }, | |
| 65 /*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 }, | |
| 66 /*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 }, | |
| 67 /*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 }, | |
| 68 /*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 }, | |
| 69 /*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 }, | |
| 70 /*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 }, | |
| 71 /*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 }, | |
| 72 /*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 }, | |
| 73 /*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 }, | |
| 74 /*+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 }, | |
| 75 /*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 }, | |
| 76 /*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 }}; | |
| 77 | |
| 78 boolean[][] cast_result_boxing = { | |
| 79 //byte, short, int, long, float, double, char, bool, Byte, Short, Integer, Long, Float, Double, Character, Boolean, Object | |
| 80 /*byte*/ { T , T , T , T , T , T , T , F , T , F , F , F , F , F , F , F , T }, | |
| 81 /*short*/ { T , T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , T }, | |
| 82 /*int*/ { T , T , T , T , T , T , T , F , F , F , T , F , F , F , F , F , T }, | |
| 83 /*long*/ { T , T , T , T , T , T , T , F , F , F , F , T , F , F , F , F , T }, | |
| 84 /*float*/ { T , T , T , T , T , T , T , F , F , F , F , F , T , F , F , F , T }, | |
| 85 /*double*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , T , F , F , T }, | |
| 86 /*char*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T }, | |
| 87 /*bool*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T }, | |
| 88 /*Byte*/ { T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , F , T }, | |
| 89 /*Short*/ { F , T , T , T , T , T , F , F , F , T , F , F , F , F , F , F , T }, | |
| 90 /*Integer*/ { F , F , T , T , T , T , F , F , F , F , T , F , F , F , F , F , T }, | |
| 91 /*Long*/ { F , F , F , T , T , T , F , F , F , F , F , T , F , F , F , F , T }, | |
| 92 /*Float*/ { F , F , F , F , T , T , F , F , F , F , F , F , T , F , F , F , T }, | |
| 93 /*Double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , T , F , F , T }, | |
| 94 /*Character*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T }, | |
| 95 /*Boolean*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T }, | |
| 96 /*Object*/ { T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T }}; | |
| 97 CastTest() { | |
| 98 Type[] primitiveTypes = { | |
| 99 predef.byteType, | |
| 100 predef.shortType, | |
| 101 predef.intType, | |
| 102 predef.longType, | |
| 103 predef.floatType, | |
| 104 predef.doubleType, | |
| 105 predef.charType, | |
| 106 predef.booleanType }; | |
| 107 | |
| 108 Type[] boxedTypes = new Type[primitiveTypes.length + 1]; | |
| 109 for (int i = 0 ; i < primitiveTypes.length ; i++) { | |
| 110 boxedTypes[i] = box(primitiveTypes[i]); | |
| 111 } | |
| 112 | |
| 113 boxedTypes[primitiveTypes.length] = predef.objectType; | |
| 114 | |
| 115 types_boxing = join(Type.class, primitiveTypes, boxedTypes); | |
| 116 | |
| 117 Type[] referenceTypes = { | |
| 118 fac.Class(), | |
| 119 fac.Class(FINAL), | |
| 120 fac.Interface(), | |
| 121 fac.TypeVariable() }; | |
| 122 | |
| 123 Type[] arrayTypes = new Type[primitiveTypes.length + referenceTypes.length]; | |
| 124 int idx = 0; | |
| 125 for (Type t : join(Type.class, primitiveTypes, referenceTypes)) { | |
| 126 arrayTypes[idx++] = fac.Array(t); | |
| 127 } | |
| 128 | |
| 129 types_no_boxing = join(Type.class, primitiveTypes, referenceTypes, arrayTypes); | |
| 130 } | |
| 131 | |
| 132 void test(Type[] all_types, boolean[][] cast_result) { | |
| 133 for (int i = 0; i < all_types.length ; i++) { | |
| 134 for (int j = 0; j < all_types.length ; j++) { | |
| 135 assertCastable(all_types[i], all_types[j], cast_result[i][j]); | |
| 136 } | |
| 137 } | |
| 138 } | |
| 139 | |
| 140 void runTests() { | |
| 141 test(types_no_boxing, cast_result_no_boxing); | |
| 142 test(types_boxing, cast_result_boxing); | |
| 143 } | |
| 144 | |
| 145 @SuppressWarnings("unchecked") | |
| 146 <T> T[] join(Class<T> type, T[]... args) { | |
| 147 int totalLength = 0; | |
| 148 for (T[] arr : args) { | |
| 149 totalLength += arr.length; | |
| 150 } | |
| 151 T[] new_arr = (T[])Array.newInstance(type, totalLength); | |
| 152 int idx = 0; | |
| 153 for (T[] arr : args) { | |
| 154 System.arraycopy(arr, 0, new_arr, idx, arr.length); | |
| 155 idx += arr.length; | |
| 156 } | |
| 157 return new_arr; | |
| 158 } | |
| 159 | |
| 160 public static void main(String[] args) { | |
| 161 new CastTest().runTests(); | |
| 162 } | |
| 163 } |
