Quelle T4501661.java Sprache: JAVA

/*
* Copyright (c) 2008, 2016, 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.
*/

import java.io.*;
import java.util.*;

/*
* @test
* @bug 4501661
* @summary disallow mixing -public, -private, and -protected
* @modules jdk.jdeps/com.sun.tools.javap
*/
public class T4501661 {
    public static void main(String... args) throws Exception {
        new T4501661().run();
    }

    void run() throws Exception {
        File javaFile = writeTestFile();
        File classFile = compileTestFile(javaFile);
        boolean[] values = { false, true };
        for (boolean pack : values) {
            for (boolean priv : values) {
                for (boolean prot : values) {
                    for (boolean publ : values) {
                        test(pack, priv, prot, publ, classFile);
                    }
                }
            }
        }

        if (errors > 0)
            throw new Exception(errors + " errors found");
    }

    void test(boolean pack, boolean priv, boolean prot, boolean publ, File classFile) {
        List<String> args = new ArrayList<String>();
        if (pack)
            args.add("-package");
        if (priv)
            args.add("-private");
        if (prot)
            args.add("-protected");
        if (publ)
            args.add("-public");
        boolean expectOK = (args.size() <= 1);
        args.add(classFile.getPath());
        String out = javap(args, expectOK);
        if (out == null)
            return;
        if (!priv && !prot && !publ)
            checkNone(out, "private");
        if (prot)
            checkNone(out, "private", "package");
        if (publ)
            checkNone(out, "private", "package", "protected");
    }

    File writeTestFile() throws IOException {
        File f = new File("Test.java");
        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
        out.println("abstract class Test { ");
        out.println(" public void public_m() { }");
        out.println(" protected void protected_m() { }");
        out.println(" private void private_m() { }");
        out.println(" void package_m() { }");
        out.println("}");
        out.close();
        return f;
    }

    File compileTestFile(File f) {
        int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
        if (rc != 0)
            throw new Error("compilation failed. rc=" + rc);
        String path = f.getPath();
        return new File(path.substring(0, path.length() - 5) + ".class");
    }

    String javap(List<String> args, boolean expectOK) {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        int rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), pw);
        System.err.println(args);
        System.err.println(sw);
        if (expectOK) {
            if (rc == 0)
                return sw.toString();
            else
                error("javap failed unexpectedly; rc=" + rc + "\n" + sw);
        } else {
            if (rc == 0)
                error("javap succeeded unexpectedly");
        }
        return null;
    }

    void checkNone(String log, String... words) {
        for (String word: words) {
            if (log.indexOf(word) != -1)
                error("\"" + word + "\" unexpectedly found in output");
        }
    }

    void error(String msg) {
        System.err.println("error: " + msg);
        errors++;
    }

    int errors;
}

quality79%

¤ Dauer der Verarbeitung: 0.12 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.