superfield.java

来自「是一款用JAVA 编写的编译器 具有很强的编译功能」· Java 代码 · 共 67 行

/*
 * Copyright 2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/*
 * @test
 * @bug 4336291
 * @summary wrong bytecode for qualified access of superclass field
 * @author gafter
 *
 * @compile SuperField.java
 * @run main SuperField
 */

public class SuperField extends B {
    class IC extends B {
	IC(String name) { super(name); }
	void doCheck() {
	    if (SuperField.super.ref.name != "obj.super.ref")
		throw new Error();
	}
    }
    protected B ref = null;

    SuperField(String name) { super(name); }

    public static void main(String[] args) {
	SuperField obj = new SuperField("obj");
	obj.ref = new SuperField("obj.ref");
	obj.put(new SuperField("obj.super.ref"));
	IC ins = obj.new IC("ins");
	ins.doCheck();
    }

}

class B {
    String name;
    protected B ref;

    B(String name) { this.name = name; }
    void put(B b) { ref = b; }

    class S {
	String get() { return name; }
    }
}