/**
 * $Id$
 * $Date$
 * 
 */

package org.xmlsh.sh.core;

import java.io.PrintWriter;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.xmlsh.core.IXFunction;
import org.xmlsh.sh.module.IModule;
import org.xmlsh.sh.module.ScriptFunction;
import org.xmlsh.sh.shell.Shell;

public class FunctionDeclaration extends CommandExpr {

  @Override
  public String toString() {
    return "FuncDecl: " + mName;
  }

  private ICommandExpr mBody;
  private static Logger mLogger = LogManager.getLogger();

  @Override
  public boolean isSimple() {
    return false;
  }

  public FunctionDeclaration(String name, ICommandExpr body) {
    super(name);
    mBody = body;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.xmlsh.sh.core.Command#print(java.io.PrintWriter)
   */
  @Override
  public void print(PrintWriter out, boolean bExec) {
    out.println(getName() + " ()");
    if(!bExec)
      mBody.print(out, bExec);

  }

  @Override
  public int exec(Shell shell) throws Exception {
    mLogger.entry(this, shell);
    final IModule module = shell.getModule();  // maybe return handle

    shell.declareFunction(new org.xmlsh.sh.shell.IFunctionDefiniton() {
      @Override
      public String toString() {
        return "new FuncDelc: " + mName;
      }

      @Override
      public String getName() {
        return mName;
      }

      @Override
      public ICommandExpr getBody() {
        // TODO Auto-generated method stub
        return mBody;
      }

      @Override
      public IXFunction getFunction() {
        return new ScriptFunction(mName, mBody, module);
      }

      @Override
      public IModule getModule() {
        return module;
      }

    });
    return 0;
  }

}

//
//
// Copyright (C) 2008-2014 David A. Lee.
//
// The contents of this file are subject to the "Simplified BSD License" (the
// "License");
// 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/bsd-license.php
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is David A. Lee
//
// Portions created by (your name) are Copyright (C) (your legal entity). All
// Rights Reserved.
//
// Contributor(s): none.
//