gettypeelembadarg.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 74 行

/*
 * Copyright 2006 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     6346506 6408241
 * @summary getTypeElement should tolerate a type that can't be found
 * @author  Scott Seligman
 * @build   GetTypeElemBadArg
 * @compile -processor GetTypeElemBadArg -proc:only GetTypeElemBadArg.java
 */

import java.util.Set;
import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.*;
import javax.lang.model.type.*;
import javax.lang.model.util.*;

@SupportedSourceVersion(SourceVersion.RELEASE_6)
@SupportedAnnotationTypes("*")
public class GetTypeElemBadArg extends AbstractProcessor {

    Elements elements;

    public void init(ProcessingEnvironment penv) {
	super.init(penv);
	elements = penv.getElementUtils();
    }

    public boolean process(Set<? extends TypeElement> tes,
			   RoundEnvironment round) {
	if (round.processingOver()) return true;

	// A missing superclass should be tolerated.
	TypeElement te = elements.getTypeElement("Superless");
	tellAbout(te);

	te = elements.getTypeElement("Bo.o.o.gus");
	if (te != null) {
	    tellAbout(te);
	    throw new AssertionError();
	}
	return true;
    }

    private static void tellAbout(TypeElement t) {
	System.out.println(t);
	System.out.println(t.getClass());
	System.out.println(t.getKind());
	System.out.println();
    }
}