test/tools/javac/processing/model/util/filter/TestIterables.java

Tue, 25 May 2010 15:54:51 -0700

author
ohair
date
Tue, 25 May 2010 15:54:51 -0700
changeset 554
9d9f26857129
parent 1
9a66ca7c79fa
child 699
d2aaaec153e8
permissions
-rw-r--r--

6943119: Rebrand source copyright notices
Reviewed-by: darcy

duke@1 1 /*
ohair@554 2 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
duke@1 7 * published by the Free Software Foundation.
duke@1 8 *
duke@1 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 13 * accompanied this code).
duke@1 14 *
duke@1 15 * You should have received a copy of the GNU General Public License version
duke@1 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 18 *
ohair@554 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 20 * or visit www.oracle.com if you need additional information or have any
ohair@554 21 * questions.
duke@1 22 */
duke@1 23
duke@1 24 /*
duke@1 25 * @test
duke@1 26 * @bug 6406164
duke@1 27 * @summary Test that ElementFilter iterable methods behave properly.
duke@1 28 * @author Joseph D. Darcy
duke@1 29 * @compile TestIterables.java
duke@1 30 * @compile -processor TestIterables -proc:only Foo1.java
duke@1 31 * @compile Foo1.java
duke@1 32 * @compile -processor TestIterables Foo1 TestIterables.java
duke@1 33 */
duke@1 34
duke@1 35 import java.util.Set;
duke@1 36 import java.util.HashSet;
duke@1 37 import java.util.Arrays;
duke@1 38 import java.util.Iterator;
duke@1 39 import javax.annotation.processing.*;
duke@1 40 import javax.lang.model.SourceVersion;
duke@1 41 import static javax.lang.model.SourceVersion.*;
duke@1 42 import javax.lang.model.element.*;
duke@1 43 import javax.lang.model.util.*;
duke@1 44 import static javax.tools.Diagnostic.Kind.*;
duke@1 45
duke@1 46 import static javax.lang.model.util.ElementFilter.*;
duke@1 47
duke@1 48 /**
duke@1 49 * Verify that the {@code ElementFilter} methods taking iterables
duke@1 50 * behave correctly by comparing ExpectedElementCounts with actual
duke@1 51 * results.
duke@1 52 */
duke@1 53 @SupportedAnnotationTypes("ExpectedElementCounts")
duke@1 54 @ExpectedElementCounts(methods=3)
duke@1 55 public class TestIterables extends AbstractProcessor {
duke@1 56
duke@1 57 public boolean process(Set<? extends TypeElement> annotations,
duke@1 58 RoundEnvironment roundEnv) {
duke@1 59 if (!roundEnv.processingOver()) {
duke@1 60 boolean error = false;
duke@1 61 int topLevelCount = 0;
duke@1 62
duke@1 63 for (TypeElement type : typesIn(roundEnv.getRootElements())) {
duke@1 64 topLevelCount++;
duke@1 65 ExpectedElementCounts elementCounts = type.getAnnotation(ExpectedElementCounts.class);
duke@1 66 if (elementCounts == null)
duke@1 67 throw new RuntimeException("Missing ExpectedElementCounts annotation!");
duke@1 68
duke@1 69 Iterable<? extends Element> irritable = type.getEnclosedElements();
duke@1 70
duke@1 71 int constructorCount = getCount(constructorsIn(irritable));
duke@1 72 int fieldCount = getCount(fieldsIn(irritable));
duke@1 73 int methodCount = getCount(methodsIn(irritable));
duke@1 74 int typeCount = getCount(typesIn(irritable));
duke@1 75
duke@1 76 System.out.println("\nType: " + type.getQualifiedName());
duke@1 77 System.out.format("Element Actual\tExpected%n");
duke@1 78 System.out.format("constructors %d\t\t%d%n", constructorCount, elementCounts.constructors());
duke@1 79 System.out.format("fields %d\t\t%d%n", fieldCount, elementCounts.fields());
duke@1 80 System.out.format("methods %d\t\t%d%n", methodCount, elementCounts.methods());
duke@1 81 System.out.format("types %d\t\t%d%n", typeCount, elementCounts.types());
duke@1 82
duke@1 83 if ((constructorCount != elementCounts.constructors()) ||
duke@1 84 (fieldCount != elementCounts.fields()) ||
duke@1 85 (methodCount != elementCounts.methods()) ||
duke@1 86 (typeCount != elementCounts.types()) )
duke@1 87 error = true;
duke@1 88 }
duke@1 89
duke@1 90 if (topLevelCount == 0)
duke@1 91 error = true;
duke@1 92
duke@1 93 if (error)
duke@1 94 throw new RuntimeException("A count mismatch has occured.");
duke@1 95 }
duke@1 96
duke@1 97 return true;
duke@1 98 }
duke@1 99
duke@1 100 private int getCount(Iterable<? extends Element> iter) {
duke@1 101 int count1 = 0;
duke@1 102 int count2 = 0;
duke@1 103
duke@1 104 Iterator<? extends Element> iterator = iter.iterator();
duke@1 105 while (iterator.hasNext() ) {
duke@1 106 count1++;
duke@1 107 iterator.next();
duke@1 108 }
duke@1 109
duke@1 110 iterator = iter.iterator();
duke@1 111 while (iterator.hasNext() ) {
duke@1 112 count2++;
duke@1 113 iterator.next();
duke@1 114 }
duke@1 115
duke@1 116 if (count1 != count2)
duke@1 117 throw new RuntimeException("Inconsistent counts from iterator.");
duke@1 118
duke@1 119 return count1;
duke@1 120 }
duke@1 121
duke@1 122 @Override
duke@1 123 public SourceVersion getSupportedSourceVersion() {
duke@1 124 return SourceVersion.latest();
duke@1 125 }
duke@1 126
duke@1 127 }

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