/*

 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 7090249

 * @summary IllegalStateException from Trees.getScope when called from JSR 199

 */

import com.sun.source.tree.IdentifierTree;

import java.io.File;

import java.io.IOException;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

import java.util.Set;

import javax.annotation.processing.AbstractProcessor;

import javax.annotation.processing.RoundEnvironment;

import javax.lang.model.element.Element;

import javax.lang.model.element.TypeElement;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.StandardJavaFileManager;

import javax.tools.ToolProvider;

import com.sun.source.util.JavacTask;

import com.sun.source.util.TreePath;

import com.sun.source.util.TreePathScanner;

import com.sun.source.util.Trees;

import javax.annotation.processing.SupportedAnnotationTypes;

import javax.lang.model.SourceVersion;

@SupportedAnnotationTypes("*")

public class TestGetScope extends AbstractProcessor {

    public static void main(String... args) throws IOException {

        new TestGetScope().run();

    }

    public void run() throws IOException {

        File srcDir = new File(System.getProperty("test.src"));

        File thisFile = new File(srcDir, getClass().getName() + ".java");

        JavaCompiler c = ToolProvider.getSystemJavaCompiler();

        try (StandardJavaFileManager fm = c.getStandardFileManager(null, null, null)) {

            List<String> opts = Arrays.asList("-proc:only", "-doe");

            Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(thisFile);

            JavacTask t = (JavacTask) c.getTask(null, fm, null, opts, null, files);

            t.setProcessors(Collections.singleton(this));

            boolean ok = t.call();

            if (!ok)

                throw new Error("compilation failed");

        }

    }

    @Override

    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

        Trees trees = Trees.instance(processingEnv);

        if (round++ == 0) {

            for (Element e: roundEnv.getRootElements()) {

                TreePath p = trees.getPath(e);

                new Scanner().scan(p, trees);

            }

        }

        return false;

    }

    @Override

    public SourceVersion getSupportedSourceVersion() {

        return SourceVersion.latest();

    }

    int round;

    static class Scanner extends TreePathScanner<Void,Trees> {

        @Override

        public Void visitIdentifier(IdentifierTree t, Trees trees) {

            System.err.println("visitIdentifier: " + t);

            trees.getScope(getCurrentPath());

            return null;

        }

    }

}