/*

 * Copyright (c) 2006, 2010, 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 6439826 6411930 6380018 6392177

 * @summary Exception issuing Diagnostic while processing generated errant code

 */

import java.io.*;

import java.util.*;

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.*;

import static javax.lang.model.util.ElementFilter.*;

@SupportedAnnotationTypes("*")

public class T6439826 extends AbstractProcessor {

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

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

        String testClasses = System.getProperty("test.classes");

        JavacTool tool = JavacTool.create();

        MyDiagListener dl = new MyDiagListener();

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

        Iterable<? extends JavaFileObject> files =

            fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, T6439826.class.getName()+".java")));

        Iterable<String> opts = Arrays.asList("-proc:only",

                                              "-processor", "T6439826",

                                              "-processorpath", testClasses);

        StringWriter out = new StringWriter();

        JavacTask task = tool.getTask(out, fm, dl, opts, null, files);

        task.call();

        String s = out.toString();

        System.err.print(s);

        // Expect the following 2 diagnostics, and no output to log

        //   Foo.java:1: illegal character: \35

        //   Foo.java:1: reached end of file while parsing

        System.err.println(dl.count + " diagnostics; " + s.length() + " characters");

        if (dl.count != 2 || s.length() != 0)

            throw new AssertionError("unexpected output from compiler");

    }

    public boolean process(Set<? extends TypeElement> annotations,

                           RoundEnvironment roundEnv) {

        Set<? extends TypeElement> elems = typesIn(roundEnv.getRootElements());

        for (TypeElement e: elems) {

            if (e.getSimpleName().toString().equals(T6439826.class.getName()))

                writeBadFile();

        }

        return false;

    }

    @Override

    public SourceVersion getSupportedSourceVersion() {

        return SourceVersion.latest();

    }

    private void writeBadFile() {

        Filer filer = processingEnv.getFiler();

        Messager messager = processingEnv.getMessager();

        try {

            Writer out = filer.createSourceFile("Foo").openWriter();

            out.write("class Foo #"); // write a file that generates a scanner error

            out.close();

        } catch (IOException e) {

            messager.printMessage(Diagnostic.Kind.ERROR, e.toString());

        }

    }

    static class MyDiagListener implements DiagnosticListener {

        public void report(Diagnostic d) {

            System.err.println(d);

            count++;

        }

        public int count;

    }

}