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1 /* |
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2 * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 6471577 6517779 |
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27 * @summary Test Elements.getConstantExpression |
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28 * @author Joseph D. Darcy |
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29 * @build TestGetConstantExpression |
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30 * @compile -processor TestGetConstantExpression Foo.java |
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31 */ |
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32 |
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33 import java.util.Set; |
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34 import javax.annotation.processing.*; |
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35 import javax.lang.model.SourceVersion; |
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36 import static javax.lang.model.SourceVersion.*; |
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37 import javax.lang.model.element.*; |
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38 import javax.lang.model.util.*; |
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39 import static javax.lang.model.util.ElementFilter.*; |
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40 import static javax.tools.Diagnostic.Kind.*; |
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41 import static javax.tools.StandardLocation.*; |
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42 import java.io.*; |
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43 |
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44 /** |
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45 * Test basic workings of Elements.getConstantExpression. |
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46 */ |
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47 @SupportedAnnotationTypes("*") |
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48 public class TestGetConstantExpression extends AbstractProcessor { |
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49 private Elements eltUtils; |
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50 private Filer filer; |
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51 private int round = 1; |
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52 |
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53 /** |
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54 * Check expected behavior on classes and packages. |
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55 */ |
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56 public boolean process(Set<? extends TypeElement> annotations, |
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57 RoundEnvironment roundEnv) { |
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58 int errors = 0; |
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59 boolean processingOver = roundEnv.processingOver(); |
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60 |
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61 if (!processingOver && round == 1) { |
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62 errors += expectIllegalArgumentException(null); |
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63 errors += expectIllegalArgumentException(this); |
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64 |
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65 // Generate source code with various constant values and |
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66 // make sure it compiles. |
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67 |
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68 try { |
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69 PrintWriter pw = new PrintWriter(filer.createSourceFile("ConstantTest").openWriter()); |
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70 try { |
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71 Boolean[] booleans = {true, false}; |
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72 Byte[] bytes = {Byte.MIN_VALUE, -1, 0, 1, Byte.MAX_VALUE}; |
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73 Short[] shorts = {Short.MIN_VALUE, -1, 0, 1, Short.MAX_VALUE}; |
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74 Integer[] ints = {Integer.MIN_VALUE, -1, 0, 1, Integer.MAX_VALUE}; |
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75 Long[] longs = {Long.MIN_VALUE, -1L, 0L,1L, Long.MAX_VALUE}; |
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76 Character[] chars = {Character.MIN_VALUE, ' ', '\t', 'a', 'b', 'c', '~', Character.MAX_VALUE}; |
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77 Float[] floats = {Float.NaN, Float.NEGATIVE_INFINITY, -1.0f, -0.0f, 0.0f, 1.0f, Float.POSITIVE_INFINITY}; |
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78 Double[] doubles = {Double.NaN, Double.NEGATIVE_INFINITY, -1.0, -0.0, 0.0, 1.0, Double.POSITIVE_INFINITY}; |
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79 |
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80 pw.println("class ConstantTest {"); |
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81 pw.println(String.format(" private static boolean[] booleans = {%s};", |
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82 printConstants(booleans))); |
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83 pw.println(String.format(" private static byte[] bytes = {%s};", |
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84 printConstants(bytes))); |
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85 pw.println(String.format(" private static short[] shorts = {%s};", |
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86 printConstants(shorts))); |
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87 pw.println(String.format(" private static int[] ints = {%s};", |
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88 printConstants(ints))); |
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89 pw.println(String.format(" private static long[] longs = {%s};", |
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90 printConstants(longs))); |
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91 pw.println(String.format(" private static char[] chars = {%s};", |
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92 printConstants(chars))); |
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93 pw.println(String.format(" private static float[] floats = {%s};", |
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94 printConstants(floats))); |
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95 pw.println(String.format(" private static double[] doubles = {%s};", |
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96 printConstants(doubles))); |
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97 pw.println("}"); |
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98 } finally { |
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99 pw.close(); |
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100 } |
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101 } catch(IOException io) { |
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102 throw new RuntimeException(io); |
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103 } |
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104 round++; |
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105 } else if (processingOver) { |
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106 if (errors > 0) { |
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107 throw new RuntimeException(); |
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108 } |
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109 } |
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110 return true; |
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111 } |
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112 |
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113 String printConstants(Object[] constants) { |
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114 StringBuilder sb = new StringBuilder(); |
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115 |
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116 for(Object o : constants) { |
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117 sb.append(eltUtils.getConstantExpression(o)); |
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118 sb.append(", "); |
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119 } |
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120 return sb.toString(); |
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121 } |
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122 |
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123 int expectIllegalArgumentException(Object o) { |
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124 String s = ""; |
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125 try { |
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126 s = eltUtils.getConstantExpression(o); |
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127 System.err.println("Unexpected string returned: " + s); |
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128 return 1; |
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129 } catch (IllegalArgumentException iae) { |
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130 return 0; |
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131 } |
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132 } |
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133 |
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134 public SourceVersion getSupportedSourceVersion() { |
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135 return SourceVersion.latest(); |
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136 } |
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137 |
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138 public void init(ProcessingEnvironment processingEnv) { |
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139 super.init(processingEnv); |
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140 eltUtils = processingEnv.getElementUtils(); |
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141 filer = processingEnv.getFiler(); |
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142 } |
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143 } |