/* * Copyright (c) 2006, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
@Override publicboolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv) { final Trees trees = Trees.instance(this.processingEnv); for (Element element : ElementFilter.typesIn(roundEnv.getRootElements())) {
checkTreePath(trees, element, 2); for (Element member : element.getEnclosedElements())
checkTreePath(trees, member, 3);
} returntrue;
}
privatevoid checkTreePath(Trees trees, Element element, int expectedLength) {
TreePath path = trees.getPath(element); assert path != null;
int enhancedLength = 0; for (Tree tree : path)
++enhancedLength;
if (enhancedLength != expectedLength) thrownew RuntimeException("found path length is wrong");
int normalLoopLength = 0;
Iterator<Tree> iter = path.iterator(); while (iter.hasNext()) {
iter.next();
++normalLoopLength;
} if (normalLoopLength != expectedLength) thrownew RuntimeException("found path length is wrong");
TreePath curr = path; // using getParent int whileLoopLength = 0; while (curr != null) {
++whileLoopLength;
curr = curr.getParentPath();
} if (whileLoopLength != expectedLength) thrownew RuntimeException("found path length is wrong");
}
@Override public SourceVersion getSupportedSourceVersion() { return SourceVersion.latest();
}
File writeTestFile() throws IOException {
File f = new File("Test.java");
PrintWriter out = new PrintWriter(new FileWriter(f));
out.println("class Test { void method() { } }");
out.close(); return f;
}
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