ojluni/src/main/java/sun/tools/tree/CodeContext.java

/*
 * Copyright (c) 1994, 2003, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 */

package sun.tools.tree;

import sun.tools.java.*;
import sun.tools.asm.Label;

/**
 * WARNING: The contents of this source file are not part of any
 * supported API.  Code that depends on them does so at its own risk:
 * they are subject to change or removal without notice.
 */
class CodeContext extends Context {
    Label breakLabel;
    Label contLabel;

    /**
     * Create a new nested context, for a block statement
     */
    CodeContext(Context ctx, Node node) {
        super(ctx, node);
        switch (node.op) {
          case DO:
          case WHILE:
          case FOR:
          case FINALLY:
          case SYNCHRONIZED:
            this.breakLabel = new Label();
            this.contLabel = new Label();
            break;
          case SWITCH:
          case TRY:
          case INLINEMETHOD:
          case INLINENEWINSTANCE:
            this.breakLabel = new Label();
            break;
          default:
            if ((node instanceof Statement) && (((Statement)node).labels != null)) {
                this.breakLabel = new Label();
            }
        }
    }
}