/*

 * 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 7196760

 * @summary javac doesn't report Diagnostic end positions properly when

 * an annotation processor is present

 */

import com.sun.source.util.JavacTask;

import java.io.IOException;

import java.net.URI;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

import java.util.Set;

import javax.annotation.processing.*;

import javax.lang.model.*;

import javax.lang.model.element.*;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.SimpleJavaFileObject;

import javax.tools.Diagnostic;

import javax.tools.DiagnosticCollector;

import static javax.tools.JavaFileObject.Kind.SOURCE;

import javax.tools.ToolProvider;

@SupportedAnnotationTypes("*")

public class EndPositions extends AbstractProcessor {

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

        class MyFileObject extends SimpleJavaFileObject {

            MyFileObject() {

                super(URI.create("myfo:///Test.java"), SOURCE);

            }

            @Override

            public String getCharContent(boolean ignoreEncodingErrors) {

                //      0         1         2         3

                //      012345678901234567890123456789012345

                return "class Test { String s = 1234; }";

            }

        }

        JavaCompiler javac = ToolProvider.getSystemJavaCompiler();

        List<JavaFileObject> compilationUnits =

                Collections.<JavaFileObject>singletonList(new MyFileObject());

        DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();

        List<String> options = Arrays.asList("-processor", EndPositions.class.getCanonicalName());

        JavacTask task = (JavacTask)javac.getTask(null, null, diagnostics, options, null, compilationUnits);

        boolean valid = task.call();

        if (valid)

            throw new AssertionError("Expected one error, but found none.");

        List<Diagnostic<? extends JavaFileObject>> errors = diagnostics.getDiagnostics();

        if (errors.size() != 1)

            throw new AssertionError("Expected one error only, but found " + errors.size() + "; errors: " + errors);

        Diagnostic<?> error = errors.get(0);

        if (error.getStartPosition() >= error.getEndPosition())

            throw new AssertionError("Expected start to be less than end position: start [" +

                    error.getStartPosition() + "], end [" + error.getEndPosition() +"]" +

                    "; diagnostics code: " + error.getCode());

        System.out.println("All is good!");

    }

    @Override

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

        return true;

    }

    @Override

    public SourceVersion getSupportedSourceVersion() {

        return SourceVersion.latest();

    }

}