/*

 * Copyright (c) 2012, 2013, 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

 * @author  Joseph D. Darcy

 * @library /tools/javac/lib

 * @build   JavacTestingAbstractProcessor TestExecutableElement

 */

import java.lang.annotation.*;

import java.util.Formatter;

import java.util.Set;

import java.util.regex.*;

import javax.annotation.processing.*;

import javax.lang.model.element.*;

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

import static javax.tools.Diagnostic.Kind.*;

/**

 * Test some basic workings of javax.lang.element.ExecutableElement

 */

public class TestExecutableElement extends JavacTestingAbstractProcessor implements ProviderOfDefault {

    @IsDefault(false)

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

                           RoundEnvironment roundEnv) {

        if (!roundEnv.processingOver()) {

            for (Element element : roundEnv.getRootElements()) {

                for (ExecutableElement method : methodsIn(element.getEnclosedElements())) {

                }

            }

            }

        }

        return true;

    }

    @IsDefault(false)

        System.out.println("Testing " + method);

        IsDefault expectedIsDefault = method.getAnnotation(IsDefault.class);

        boolean expectedDefault = (expectedIsDefault != null) ?

            expectedIsDefault.value() :

            false;

        boolean methodIsDefault = method.isDefault();

        if (expectedDefault) {

            if (!method.getModifiers().contains(Modifier.DEFAULT)) {

                messager.printMessage(ERROR,

                                      "Modifier \"default\" not present as expected.",

                                      method);

            }

            // Check printing output

            java.io.Writer stringWriter = new java.io.StringWriter();

            eltUtils.printElements(stringWriter, method);

            Pattern p = Pattern.compile(expectedIsDefault.expectedTextRegex(), Pattern.DOTALL);

            if (! p.matcher(stringWriter.toString()).matches()) {

                messager.printMessage(ERROR,

                                      new Formatter().format("Unexpected printing ouptput:%n\tgot %s,%n\texpected pattern %s.",

                                                             stringWriter.toString(),

                                                             expectedIsDefault.expectedTextRegex()).toString(),

                                      method);

            }

            System.out.println("\t" + stringWriter.toString());

        } else {

            if (method.getModifiers().contains(Modifier.DEFAULT)) {

                messager.printMessage(ERROR,

                                      "Modifier \"default\" present when not expected.",

                                      method);

            }

        }

        if (methodIsDefault != expectedDefault) {

            messager.printMessage(ERROR,

                                  new Formatter().format("Unexpected Executable.isDefault result: got ``%s'', expected ``%s''.",

                                                         expectedDefault,

                                                         methodIsDefault).toString(),

                                  method);

        }

    }

}

/**

 * Expected value of the ExecutableElement.isDefault method.

 */

@Retention(RetentionPolicy.RUNTIME)

@Target(ElementType.METHOD)

@interface IsDefault {

    boolean value();

    String expectedTextRegex() default "";

}

/**

 * Test interface to provide a default method.

 */

interface ProviderOfDefault {

    @IsDefault(false)

    boolean process(Set<? extends TypeElement> annotations,

                    RoundEnvironment roundEnv);

    @IsDefault(value=true, expectedTextRegex="\\s*@IsDefault\\(.*\\)\\s*default strictfp void quux\\(\\);\\s*$")

    default strictfp void quux() {};

}