t6397044.java

是一款用JAVA 编写的编译器 具有很强的编译功能

/*
 * 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 6397044 
 * @summary JCModifiers.getModifiers() returns incorrect Modifiers set.
 */

import java.io.*;
import java.util.*;
import javax.tools.*;
import javax.lang.model.element.Modifier;
import com.sun.source.tree.*;
import com.sun.source.util.*;
import com.sun.tools.javac.api.JavacTool;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.tree.JCTree.JCModifiers;

public abstract class T6397044 {
    public static void main(String[] args) throws Exception {
	String srcDir = System.getProperty("test.src", ".");
	String self = T6397044.class.getName();
	JavacTool tool = JavacTool.create();
	StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
	Iterable<? extends JavaFileObject> files 
	    = fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(srcDir, self + ".java")));
	JavacTask task = tool.getTask(null, fm, null, null, null, files);
	Iterable<? extends CompilationUnitTree> trees = task.parse();
	Checker checker = new Checker();
	for (CompilationUnitTree tree: trees) 
	    checker.check(tree);
    }

    public int x_public;
    protected int x_protected;
    private int x_private;
    abstract int x_abstract();
    static int x_static;
    final int x_final = 1;
    transient int x_transient;
    volatile int x_volatile;
    synchronized void x_synchronized() { }
    native int x_native();
    strictfp void x_strictfp() { }

    static class Checker extends TreeScanner<Void,Void> {
	void check(Tree tree) {
	    if (tree != null)
		tree.accept(this, null);
	}

	void check(List<? extends Tree> trees) {
	    if (trees == null)
		return;
	    for (Tree tree: trees)
		check(tree);
	}

	public Void visitCompilationUnit(CompilationUnitTree tree, Void ignore) {
	    check(tree.getTypeDecls());
	    return null;
	}

	public Void visitClass(ClassTree tree, Void ignore) {
	    check(tree.getMembers());
	    return null;
        }

	public Void visitMethod(MethodTree tree, Void ignore) {
	    check(tree.getName(), tree.getModifiers());
	    return null;
	}

	public Void visitVariable(VariableTree tree, Void ignore) {
	    check(tree.getName(), tree.getModifiers());
	    return null;
	}

	private void check(CharSequence name, ModifiersTree modifiers) {
	    long sysflags = ((JCModifiers) modifiers).flags;
	    System.err.println(name + ": " + modifiers.getFlags() + " | " + Flags.toString(sysflags));
	    if (name.toString().startsWith("x_")) {
		String expected = "[" + name.toString().substring(2) + "]";
		String found = modifiers.getFlags().toString();
		if (!found.equals(expected))
		    throw new AssertionError("expected: " + expected + "; found: " + found);
	    }
	}
    }
}