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Java/clang/ZZClangOp.java

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+/*   
+ZZClangOp.java
+ *    
+ *    Copyright (c) 2000, Ted Nelson and Tuomas Lukka
+ *
+ *    You may use and distribute under the terms of either the GNU Lesser
+ *    General Public License, either version 2 of the license or,
+ *    at your choice, any later version. Alternatively, you may use and
+ *    distribute under the terms of the XPL.
+ *
+ *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
+ *    the licenses.
+ *
+ *    This software 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 README
+ *    file for more details.
+ *
+ */
+/*
+ * Written by Tuomas Lukka
+ */
+package org.gzigzag.clang;
+import org.gzigzag.*;
+import java.util.*;
+
+/** A primitive operation for Clang.
+ * NOT YET FINISHED! 
+ */
+
+public interface ZZClangOp {
+String rcsid = "$Id: ZZClangOp.java,v 1.3 2000/09/19 10:31:58 ajk Exp $";
+
+    /** Execute the operation.
+     * The op is to start at cell c and go poswards on d.1 to find
+     * its parameters, with which it can call the ctxt object to find
+     * out the values.
+     * <p>
+     * The cursor crs may or may not be the actual cursor of the viewcell
+     * of the context: it may also be given negwards on d.1 from the object
+     * to allow ops to act on other cursors easily.
+     * @param c The cell that made this routine to be called.
+     * @param crs The main cursor
+     * @param ctxt The context of the operation.
+     * @return The it parameter for the next op.
+     */
+    void exec(ZZCell c, ZZCursor crs, ZZClangContext ctxt);
+
+    /* Be mentally prepared for something like
+     *
+     *   void compile(ZZClangCompiler clc, ZZCell c, ZZClangContext ctxt);
+     *
+     * to appear in the future.
+     */
+
+    /** Return the name of this operation.
+     */
+    String name();
+}