testelement.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 75 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 6453386
 * @summary Test basic properties of javax.lang.element.Element
 * @author  Joseph D. Darcy
 * @build TestElement
 * @compile -processor TestElement -proc:only TestElement.java
 */

import java.util.Set;
import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import static javax.lang.model.SourceVersion.*;
import javax.lang.model.element.*;
import javax.lang.model.util.*;
import static javax.lang.model.util.ElementFilter.*;
import static javax.tools.Diagnostic.Kind.*;
import static javax.tools.StandardLocation.*;

/**
 * Test basic workings of javax.lang.element.Element
 */
@SupportedAnnotationTypes("*")
public class TestElement extends AbstractProcessor {
    /**
     * For now, just check that constructors have a simple name of
     * "<init>".
     */
    public boolean process(Set<? extends TypeElement> annotations,
			   RoundEnvironment roundEnv) {
        if (!roundEnv.processingOver()) {
	    boolean hasRun = false;
	    for (Element element : roundEnv.getRootElements()) {
		for (ExecutableElement ctor : constructorsIn(element.getEnclosedElements())) {
		    hasRun = true;
		    Name ctorName = ctor.getSimpleName();
		    if (!ctorName.contentEquals("<init>"))
			throw new RuntimeException("Unexpected name for constructor " + ctorName);
		}
	    }
	    if (!hasRun)
		throw new RuntimeException("No constructors!");
        }
        return true;
    }
    
    public SourceVersion getSupportedSourceVersion() {
        return SourceVersion.latest();
    }

}