Assert.java example

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/*
 *  This file is part of the X10 project (http://x10-lang.org).
 *
 *  This file is licensed to You under the Eclipse Public License (EPL);
 *  You may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *      http://www.opensource.org/licenses/eclipse-1.0.php
 *
 * This file was originally derived from the Polyglot extensible compiler framework.
 *
 *  (C) Copyright 2000-2007 Polyglot project group, Cornell University
 *  (C) Copyright IBM Corporation 2007-2012.
 */

package polyglot.ast;

/**
 * An immutable representation of a <code>assert</code> statement.
 */
public interface Assert extends Stmt
{
    /** The condition to check. */
    Expr cond();

    /** Set the condition to check. */
    Assert cond(Expr cond);

    /** The error message expression, or null. */
    Expr errorMessage();

    /** Set the error message expression. */
    Assert errorMessage(Expr errorMessage);
}