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/*
* Copyright (c) 2006, 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.
*/
/*
* @test
* @bug 6346249 6392177
* @summary new Trees API
*/
import com.sun.source.tree.*;
import com.sun.source.util.*;
import java.io.*;
import java.lang.annotation.*;
import java.util.*;
import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.*;
import javax.lang.model.type.*;
import javax.tools.*;
import com.sun.tools.javac.api.JavacTool;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.TreeInfo;
@Anno
@SupportedAnnotationTypes("*")
public class TestTrees extends AbstractProcessor {
@Anno
void annoMethod() { }
@Anno
int annoField;
static final String testSrcDir = System.getProperty("test.src");
static final String testClassDir = System.getProperty("test.classes");
static final String self = TestTrees.class.getName();
static PrintWriter out = new PrintWriter(System.err, true);
public static void main(String[] args) throws IOException {
new TestTrees().run();
}
void run() throws IOException {
JavacTool tool = JavacTool.create();
DiagnosticListener<JavaFileObject> dl = new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic d) {
error(d.toString());
}
};
StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null);
Iterable<? extends JavaFileObject> files =
fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrcDir, self + ".java")));
Iterable<String> opts = Arrays.asList("-d", ".");
System.err.println("simple compilation, no processing");
JavacTask task = tool.getTask(out, fm, dl, opts, null, files);
task.setTaskListener(new MyTaskListener(task));
if (!task.call())
throw new AssertionError("compilation failed");
opts = Arrays.asList("-d", ".", "-processorpath", testClassDir, "-processor", self);
System.err.println();
System.err.println("compilation with processing");
task = tool.getTask(out, fm, dl,opts, null, files);
if (!task.call())
throw new AssertionError("compilation failed");
if (errors > 0)
throw new AssertionError(errors + " errors occurred");
}
void testElement(Trees trees, Element e) {
trees.getClass();
e.getClass();
System.err.println("testElement: " + e);
Tree tree = trees.getTree(e);
//System.err.println(tree);
if (TreeInfo.symbolFor((JCTree)tree) != e)
error("bad result from getTree");
TreePath path = trees.getPath(e);
if (path == null) {
error("getPath returned null");
return;
}
if (path.getLeaf() != tree)
error("bad result from getPath");
Element e2 = trees.getElement(path);
if (e2 == null) {
error("getElement returned null");
return;
}
if (e2 != e)
error("bad result from getElement");
// The TypeMirror is not available yet when annotation processing;
// it is set up later during ANALYSE.
TypeMirror t = trees.getTypeMirror(path);
if (t != null && t.getKind() == TypeKind.DECLARED &&
((DeclaredType)t).asElement() != e2)
error("bad result from getTypeMirror");
for (AnnotationMirror m: e.getAnnotationMirrors()) {
testAnnotation(trees, e, m);
}
}
void testAnnotation(Trees trees, Element e, AnnotationMirror a) {
System.err.println("testAnnotation: " + e + " " + a);
Tree tree = trees.getTree(e, a);
if (tree.getKind() != Tree.Kind.ANNOTATION)
error("bad result from getTree");
TreePath path = trees.getPath(e, a);
if (path.getLeaf() != tree)
error("bad result from getPath");
}
void error(String msg) {
if (messager != null)
// annotation processing will happen in a separate instance/classloader
// so pass the message back to the calling instance.
messager.printMessage(Diagnostic.Kind.ERROR, msg);
else {
System.err.println(msg);
errors++;
}
}
Messager messager;
int errors;
public boolean process(Set<? extends TypeElement> annos, RoundEnvironment rEnv) {
Trees trees = Trees.instance(processingEnv);
messager = processingEnv.getMessager();
for (Element e: rEnv.getRootElements()) {
testElement(trees, e);
}
for (TypeElement anno: annos) {
Set<? extends Element> elts = rEnv.getElementsAnnotatedWith(anno);
System.err.println("anno: " + anno);
System.err.println("elts: " + elts);
if (elts != null) { // 6397298, should return empty set
for (Element e: rEnv.getElementsAnnotatedWith(anno))
testElement(trees, e);
}
}
return true;
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
class MyTaskListener implements TaskListener {
MyTaskListener(JavacTask task) {
this.task = task;
}
public void started(TaskEvent e) {
System.err.println("started " + e);
}
public void finished(TaskEvent e) {
//System.err.println("finished " + e);
switch (e.getKind()) {
case ANALYZE:
testElement(Trees.instance(task), e.getTypeElement());
break;
}
}
private final JavacTask task;
}
}
@Retention(RetentionPolicy.SOURCE)
@interface Anno {
}
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