/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 2 of the License.

 *

 * This program 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 for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://opensource.org/licenses/GPL-2.0.

 */

package org.apidesign.bck2brwsr.ide.editor;

/**

 * An implementation of {@linkplain JsniCommentTokenizer.Sink} that generates B2B

 */

class ManglingSink implements JsniCommentTokenizer.Sink {

    final StringBuilder out = new StringBuilder();

    public void javascript(String s) {

        out.append(s);

    }

    public void method(String clazz, String method, String signature) {

        out.append(mangle(clazz, method, signature));

    }

    public void field(String clazz, String field) {

//        out.append(field);

        out.append('_').append(field).append('(').append(')');

    }

    @Override

    public String toString() {

        return out.toString();

    }

    static String mangle(String clazz, String method, String signature) {

        final StringBuilder builder = new StringBuilder();

        builder.append(method);

        builder.append("__");

        builder.append(mangle(JNIHelper.signature(JNIHelper.method(clazz, method, signature).getReturnType())));

        builder.append(mangle(signature));

        return builder.toString();

    }

    static String mangle(String txt) {

        final StringBuilder sb = new StringBuilder();

        for (int i = 0; i < txt.length(); i++) {

            final char ch = txt.charAt(i);

            switch (ch) {

                case '/': sb.append('_'); break;

                case '_': sb.append("_1"); break;

                case ';': sb.append("_2"); break;

                case '[': sb.append("_3"); break;

                default: sb.append(ch); break;

            }

        }

        return sb.toString();

    }

}