import java.io.*;

import java.net.*;

import java.util.*;

import javax.annotation.*;

import javax.annotation.processing.*;

import javax.lang.model.*;

import javax.lang.model.element.*;

import javax.tools.*;

import com.sun.source.util.*;

import com.sun.tools.javac.api.*;

@SupportedAnnotationTypes("*")

public class T6412669 extends AbstractProcessor {

public static void main(String... args) throws Exception {

File testSrc = new File(System.getProperty("test.src", "."));

File testClasses = new File(System.getProperty("test.classes", "."));

// Determine location of necessary tools classes. Assume all in one place.

// Likely candidates are typically tools.jar (when testing JDK build)

// or build/classes or dist/javac.jar (when testing langtools, using -Xbootclasspath/p:)

File toolsClasses;

URL u = T6412669.class.getClassLoader().getResource("com/sun/source/util/JavacTask.class");

switch (u.getProtocol()) {

case "file":

toolsClasses = new File(u.toURI());

break;

case "jar":

String s = u.getFile(); // will be file:path!/entry

int sep = s.indexOf("!");

toolsClasses = new File(new URI(s.substring(0, sep)));

break;

default:

throw new AssertionError("Cannot locate tools classes");

}

//System.err.println("toolsClasses: " + toolsClasses);

JavacTool tool = JavacTool.create();

StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);

fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(testClasses, toolsClasses));

Iterable<? extends JavaFileObject> files =

fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, T6412669.class.getName()+".java")));

String[] opts = { "-proc:only", "-processor", T6412669.class.getName()};

StringWriter sw = new StringWriter();

JavacTask task = tool.getTask(sw, fm, null, Arrays.asList(opts), null, files);

boolean ok = task.call();

String out = sw.toString();

if (!out.isEmpty())

System.err.println(out);

if (!ok)

throw new AssertionError("compilation of test program failed");

// verify we found an annotated element to exercise the SourcePositions API

if (!out.contains("processing element"))

throw new AssertionError("expected text not found in compilation output");

}

public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

Trees trees = Trees.instance(processingEnv);

SourcePositions sp = trees.getSourcePositions();

Messager m = processingEnv.getMessager();

m.printMessage(Diagnostic.Kind.NOTE, "processing annotations");

int count = 0;

for (TypeElement anno: annotations) {

count++;

m.printMessage(Diagnostic.Kind.NOTE, " processing annotation " + anno);

for (Element e: roundEnv.getElementsAnnotatedWith(anno)) {

m.printMessage(Diagnostic.Kind.NOTE, " processing element " + e);

TreePath p = trees.getPath(e);

long start = sp.getStartPosition(p.getCompilationUnit(), p.getLeaf());

long end = sp.getEndPosition(p.getCompilationUnit(), p.getLeaf());

Diagnostic.Kind k = (start > 0 && end > 0 && start < end

? Diagnostic.Kind.NOTE : Diagnostic.Kind.ERROR);

m.printMessage(k, "test [" + start + "," + end + "]", e);

}

}

if (count == 0)

m.printMessage(Diagnostic.Kind.NOTE, "no annotations found");

return true;

}

@Override

public SourceVersion getSupportedSourceVersion() {

return SourceVersion.latest();

}

}