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1 /* |
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2 * Copyright (c) 2010 Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * 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 * @summary Checks that the interaction between annotated and unannotated |
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27 * array levels in array creation trees |
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28 */ |
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29 |
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30 import com.sun.tools.javac.api.JavacTool; |
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31 import com.sun.tools.javac.tree.JCTree.JCNewArray; |
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32 import java.lang.annotation.*; |
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33 import java.io.File; |
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34 import java.io.PrintWriter; |
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35 import java.util.Arrays; |
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36 import java.util.List; |
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37 import java.util.Map; |
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38 import java.util.HashMap; |
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39 import javax.tools.JavaFileManager; |
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40 import javax.tools.JavaFileObject; |
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41 import com.sun.source.tree.*; |
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42 import com.sun.source.util.JavacTask; |
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43 import com.sun.source.util.TreeScanner; |
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44 import javax.tools.StandardJavaFileManager; |
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45 |
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46 |
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47 public class ArrayCreationTree { |
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48 public static void main(String[] args) throws Exception { |
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49 PrintWriter out = new PrintWriter(System.out, true); |
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50 JavacTool tool = JavacTool.create(); |
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51 StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); |
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52 File testSrc = new File(System.getProperty("test.src")); |
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53 Iterable<? extends JavaFileObject> f = |
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54 fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, "ArrayCreationTree.java"))); |
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55 JavacTask task = tool.getTask(out, fm, null, null, null, f); |
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56 Iterable<? extends CompilationUnitTree> trees = task.parse(); |
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57 out.flush(); |
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58 |
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59 Scanner s = new Scanner(); |
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60 for (CompilationUnitTree t: trees) |
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61 s.scan(t, null); |
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62 |
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63 } |
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64 |
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65 private static class Scanner extends TreeScanner<Void,Void> { |
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66 int foundAnnotations = 0; |
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67 public Void visitCompilationUnit(CompilationUnitTree node, Void ignore) { |
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68 super.visitCompilationUnit(node, ignore); |
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69 if (foundAnnotations != expectedAnnotations) { |
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70 throw new AssertionError("Expected " + expectedAnnotations + |
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71 " annotations but found: " + foundAnnotations); |
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72 } |
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73 return null; |
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74 } |
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75 |
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76 private void testAnnotations(List<? extends AnnotationTree> annos, int found) { |
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77 if (annos.isEmpty()) return; |
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78 |
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79 String annotation = annos.get(0).toString(); |
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80 foundAnnotations++; |
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81 |
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82 int expected = -1; |
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83 if (annotation.equals("@A()")) |
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84 expected = 0; |
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85 else if (annotation.equals("@B()")) |
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86 expected = 1; |
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87 else if (annotation.equals("@C()")) |
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88 expected = 2; |
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89 else |
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90 throw new AssertionError("found an unexpected annotation: " + annotation); |
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91 if (found != expected) { |
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92 throw new AssertionError("Unexpected found length" + |
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93 ", found " + found + " but expected " + expected); |
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94 } |
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95 } |
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96 |
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97 public Void visitAnnotatedType(AnnotatedTypeTree node, Void ignore) { |
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98 testAnnotations(node.getAnnotations(), arrayLength(node)); |
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99 return super.visitAnnotatedType(node, ignore); |
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100 } |
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101 |
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102 public Void visitNewArray(NewArrayTree node, Void ignore) { |
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103 // the Tree API hasn't been updated to expose annotations yet |
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104 JCNewArray newArray = (JCNewArray)node; |
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105 int totalLength = node.getDimensions().size() |
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106 + arrayLength(node.getType()) |
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107 + ((newArray.getInitializers() != null) ? 1 : 0); |
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108 testAnnotations(newArray.annotations, totalLength); |
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109 int count = 0; |
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110 for (List<? extends AnnotationTree> annos : newArray.dimAnnotations) { |
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111 testAnnotations(annos, totalLength - count); |
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112 count++; |
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113 } |
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114 return super.visitNewArray(node, ignore); |
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115 } |
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116 |
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117 private int arrayLength(Tree tree) { |
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118 // TODO: the tree is null when called with node.getType(). Why? |
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119 if (tree==null) return -1; |
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120 switch (tree.getKind()) { |
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121 case ARRAY_TYPE: |
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122 return 1 + arrayLength(((ArrayTypeTree)tree).getType()); |
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123 case ANNOTATED_TYPE: |
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124 return arrayLength(((AnnotatedTypeTree)tree).getUnderlyingType()); |
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125 default: |
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126 return 0; |
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127 } |
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128 } |
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129 } |
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130 |
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131 static int expectedAnnotations = 21; |
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132 |
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133 Object a1 = new @A Object @C [2] @B [1]; |
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134 Object b1 = new @A Object @C [2] @B [ ]; |
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135 Object c1 = new @A Object @C [ ] @B [ ] { }; |
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136 |
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137 Object a2 = new @A Object @C [2] [1]; |
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138 Object b2 = new @A Object @C [2] [ ]; |
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139 Object c2 = new @A Object @C [ ] [ ] { }; |
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140 |
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141 Object a3 = new @A Object [2] @B [1]; |
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142 Object b3 = new @A Object [2] @B [ ]; |
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143 Object c3 = new @A Object [ ] @B [ ] { }; |
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144 |
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145 @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) |
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146 @interface A {} |
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147 @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) |
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148 @interface B {} |
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149 @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) |
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150 @interface C {} |
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151 |
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152 } |