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 * 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

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 */

/*

 * @test

 * @bug 6358168

 * @summary JavaCompiler.hasBeenUsed is not set in delegateCompiler

 */

import java.io.*;

import java.util.*;

import javax.annotation.processing.*;

import javax.lang.model.element.*;

import javax.tools.*;

import com.sun.source.util.JavacTask;

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

import com.sun.tools.javac.file.JavacFileManager;

import com.sun.tools.javac.main.JavaCompiler;

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

import com.sun.tools.javac.util.List; // disambiguate

@SupportedAnnotationTypes("*")

public class T6358168 extends AbstractProcessor {

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

    private static final String testSrc = System.getProperty("test.src");

    private static final String self = T6358168.class.getName();

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

        JavacFileManager fm = new JavacFileManager(new Context(), false, null);

        List<JavaFileObject> files = toList(fm.getJavaFileObjects(new File(testSrc, self + ".java")));

        try {

            // first, test case with no annotation processing

            testNoAnnotationProcessing(fm, files);

            // now, test case with annotation processing

            testAnnotationProcessing(fm, files);

        }

        catch (Throwable t) {

            throw new AssertionError(t);

        }

    }

    static void testNoAnnotationProcessing(JavacFileManager fm, List<JavaFileObject> files) throws Throwable {

        Context context = new Context();

        String[] args = { "-d", "." };

        JavacTool tool = JavacTool.create();

        JavacTask task = tool.getTask(null, fm, null, List.from(args), null, files, context);

        // no need in this simple case to call task.prepareCompiler(false)

        JavaCompiler compiler = JavaCompiler.instance(context);

        compiler.compile(files);

        try {

            compiler.compile(files);

            throw new Error("Error: AssertionError not thrown after second call of compile");

        } catch (AssertionError e) {

            System.err.println("Exception from compiler (expected): " + e);

        }

    }

    static void testAnnotationProcessing(JavacFileManager fm, List<JavaFileObject> files) throws Throwable {

        Context context = new Context();

        String[] args = {

                "-XprintRounds",

                "-processorpath", testClasses,

                "-processor", self,

                "-d", "."

        };

        JavacTool tool = JavacTool.create();

        JavacTask task = tool.getTask(null, fm, null, List.from(args), null, files, context);

        // no need in this simple case to call task.prepareCompiler(false)

        JavaCompiler compiler = JavaCompiler.instance(context);

        compiler.compile(files);

        try {

            compiler.compile(files);

            throw new Error("Error: AssertionError not thrown after second call of compile");

        } catch (AssertionError e) {

            System.err.println("Exception from compiler (expected): " + e);

        }

    }

    private static List<JavaFileObject> toList(Iterable<? extends JavaFileObject> iter) {

        ListBuffer<JavaFileObject> files = new ListBuffer<>();

        for (JavaFileObject file: iter)

            files.add(file);

        return files.toList();

    }

    @Override

    public boolean process(Set<? extends TypeElement> tes, RoundEnvironment renv) {

        return true;

    }

}