/*
* Copyright ( c ) 2010 , 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 .
*/
/*
* @ test
* @ bug 8007344
* @ summary javac may not make tree end positions and / or doc comments
* available to processors and listeners
* @ library / tools / javac / lib
* @ modules jdk . compiler / com . sun . tools . javac . api
* jdk . compiler / com . sun . tools . javac . file
* jdk . compiler / com . sun . tools . javac . tree
* jdk . compiler / com . sun . tools . javac . util
* @ build JavacTestingAbstractProcessor
* @ run main Test
*/
import java.io.File;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Set;
import javax.annotation.processing.RoundEnvironment;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;
import com.sun.source.doctree.DocCommentTree;
import com.sun.source.tree.*;
import com.sun.source.util.DocTrees;
import com.sun.source.util.JavacTask;
import com.sun.source.util.SourcePositions;
import com.sun.source.util.TaskEvent;
import com.sun.source.util.TaskListener;
import com.sun.source.util.TreePath;
import com.sun.source.util.TreePathScanner;
import com.sun.tools.javac.api.JavacTool;
import com.sun.tools.javac.tree.JCTree;
import com.sun.tools.javac.tree.Pretty;
import com.sun.tools.javac.util.Position;
/** Doc comment: Test */
public class Test {
public static final int EXPECT_DOC_COMMENTS = 3 ;
/** Doc comment: main */
public static void main(String... args) throws Exception {
PrintWriter out = new PrintWriter(System.err);
try {
new Test(out).run();
} finally {
out.flush();
}
}
PrintWriter out;
int errors;
Test(PrintWriter out) {
this .out = out;
}
/** Doc comment: run */
void run() throws Exception {
File testSrc = new File(System.getProperty("test.src" ));
File thisFile = new File(testSrc, getClass().getName() + ".java" );
JavacTool javac = JavacTool.create();
try (StandardJavaFileManager fm = javac.getStandardFileManager(null , null , null )) {
fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(new File("." )));
Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(thisFile);
testAnnoProcessor(javac, fm, fos, out, EXPECT_DOC_COMMENTS);
testTaskListener(javac, fm, fos, out, EXPECT_DOC_COMMENTS);
if (errors > 0 )
throw new Exception(errors + " errors occurred" );
}
}
void testAnnoProcessor(JavacTool javac, StandardJavaFileManager fm,
Iterable<? extends JavaFileObject> files, PrintWriter out,
int expectedDocComments) {
out.println("Test annotation processor" );
JavacTask task = javac.getTask(out, fm, null , null , null , files);
AnnoProc ap = new AnnoProc(DocTrees.instance(task));
task.setProcessors(Arrays.asList(ap));
task.call();
ap.checker.checkDocComments(expectedDocComments);
}
void testTaskListener(JavacTool javac, StandardJavaFileManager fm,
Iterable<? extends JavaFileObject> files, PrintWriter out,
int expectedDocComments) {
out.println("Test task listener" );
JavacTask task = javac.getTask(out, fm, null , null , null , files);
TaskListnr tl = new TaskListnr(DocTrees.instance(task));
task.addTaskListener(tl);
task.call();
tl.checker.checkDocComments(expectedDocComments);
}
void error(String msg) {
out.println("Error: " + msg);
errors++;
}
class AnnoProc extends JavacTestingAbstractProcessor {
Checker checker;
AnnoProc(DocTrees trees) {
checker = new Checker(trees);
}
@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
for (Element e : roundEnv.getRootElements()) {
checker.scan(checker.trees.getPath(e), null );
}
return true ;
}
}
class TaskListnr implements TaskListener {
Checker checker;
TaskListnr(DocTrees trees) {
checker = new Checker(trees);
}
public void started(TaskEvent e) {
if (e.getKind() == TaskEvent.Kind.ANALYZE)
checker.scan(new TreePath(e.getCompilationUnit()), null );
}
public void finished(TaskEvent e) {
}
}
class Checker extends TreePathScanner<Void ,Void > {
DocTrees trees;
SourcePositions srcPosns;
int docComments = 0 ;
Checker(DocTrees trees) {
this .trees = trees;
srcPosns = trees.getSourcePositions();
}
@Override
public Void scan(Tree tree, Void ignore) {
if (tree != null ) {
switch (tree.getKind()) {
// HACK: Workaround 8007350
// Some tree nodes do not have endpos set
case ASSIGNMENT:
case BLOCK:
case IDENTIFIER:
case METHOD_INVOCATION:
break ;
default :
checkEndPos(getCurrentPath().getCompilationUnit(), tree);
}
}
return super .scan(tree, ignore);
}
@Override
public Void visitClass(ClassTree tree, Void ignore) {
checkComment();
return super .visitClass(tree, ignore);
}
@Override
public Void visitMethod(MethodTree tree, Void ignore) {
checkComment();
return super .visitMethod(tree, ignore);
}
@Override
public Void visitVariable(VariableTree tree, Void ignore) {
checkComment();
return super .visitVariable(tree, ignore);
}
void checkComment() {
DocCommentTree dc = trees.getDocCommentTree(getCurrentPath());
if (dc != null ) {
out.println("comment: " + dc.toString().replaceAll("\\s+" , " " ));
docComments++;
}
}
void checkEndPos(CompilationUnitTree unit, Tree tree) {
long sp = srcPosns.getStartPosition(unit, tree);
long ep = srcPosns.getEndPosition(unit, tree);
if (sp >= 0 && ep == Position.NOPOS) {
error("endpos not set for " + tree.getKind()
+ " " + Pretty.toSimpleString(((JCTree) tree))
+", start:" + sp);
}
}
void checkDocComments(int expected) {
if (docComments != expected) {
error("Unexpected number of doc comments received: "
+ docComments + ", expected: " + expected);
}
}
}
}
Messung V0.5 in Prozent C=88 H=91 G=89
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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