/*
 * Copyright 2004-2007 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.
 */


import com.sun.mirror.apt.*;
import com.sun.mirror.declaration.*;
import com.sun.mirror.type.*;
import com.sun.mirror.util.*;

import java.util.Collection;
import java.util.Set;
import java.util.Arrays;

import static java.util.Collections.*;
import static com.sun.mirror.util.DeclarationVisitors.*;

/*
 * Used to verify counts from different kinds of declaration scanners.
 */
public class Counter implements AnnotationProcessorFactory { 
    static class CounterProc implements AnnotationProcessor {
	static class CountingVisitor extends SimpleDeclarationVisitor {
	    int count;
	    int count() {
		return count;
	    }

	    CountingVisitor() {
		count = 0;
	    }
		
	    public void visitDeclaration(Declaration d) {
		count++;
		System.out.println(d.getSimpleName());
	    }
	}

	AnnotationProcessorEnvironment env;
	CounterProc(AnnotationProcessorEnvironment env) {
	    this.env = env;
	}
	    
	public void process() {
	    for(TypeDeclaration td: env.getSpecifiedTypeDeclarations() ) {
		CountingVisitor sourceOrder = new CountingVisitor();
		CountingVisitor someOrder = new CountingVisitor();

		System.out.println("Source Order Scanner");
		td.accept(getSourceOrderDeclarationScanner(sourceOrder,
							   NO_OP));

		System.out.println("\nSome Order Scanner");
		td.accept(getDeclarationScanner(someOrder,
						NO_OP));

		if (sourceOrder.count() != someOrder.count() )
		    throw new RuntimeException("Counts from different scanners don't agree");
	    }

	}
    }

    static Collection<String> supportedTypes;
    static {
        String types[] = {"*"};
        supportedTypes = unmodifiableCollection(Arrays.asList(types));
    }

    static Collection<String> supportedOptions;
    static {
        String options[] = {""};
        supportedOptions = unmodifiableCollection(Arrays.asList(options));
    }

    public Collection<String> supportedOptions() {
        return supportedOptions;
    }

    public Collection<String> supportedAnnotationTypes() {
        return supportedTypes;
    }

    public AnnotationProcessor getProcessorFor(Set<AnnotationTypeDeclaration> atds,
					       AnnotationProcessorEnvironment env) {
        return new CounterProc(env);
    }

}