1. /*

  2.  * Copyright 2001-2004 The Apache Software Foundation.

  3.  *

  4.  * Licensed under the Apache License, Version 2.0 (the "License");

  5.  * you may not use this file except in compliance with the License.

  6.  * You may obtain a copy of the License at

  7.  *

  8.  *     http://www.apache.org/licenses/LICENSE-2.0

  9.  *

  10.  * Unless required by applicable law or agreed to in writing, software

  11.  * distributed under the License is distributed on an "AS IS" BASIS,

  12.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  13.  * See the License for the specific language governing permissions and

  14.  * limitations under the License.

  15.  */

  16. /*

  17.  * $Id: Instruction.java,v 1.5 2004/02/16 22:24:29 minchau Exp $

  18.  */

  19. 

  20. package com.sun.org.apache.xalan.internal.xsltc.compiler;

  21. 

  22. import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;

  23. import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg;

  24. import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;

  25. import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;

  26. import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;

  27. 

  28. /**

  29.  * @author Jacek Ambroziak

  30.  * @author Santiago Pericas-Geertsen

  31.  */

  32. abstract class Instruction extends SyntaxTreeNode {

  33.     /**

  34.      * Type check all the children of this node.

  35.      */

  36.     public Type typeCheck(SymbolTable stable) throws TypeCheckError {

  37. 	return typeCheckContents(stable);

  38.     }

  39. 

  40.     /**

  41.      * Translate this node into JVM bytecodes.

  42.      */

  43.     public void translate(ClassGenerator classGen, MethodGenerator methodGen) {

  44. 	ErrorMsg msg = new ErrorMsg(ErrorMsg.NOT_IMPLEMENTED_ERR,

  45. 				    getClass(), this);

  46. 	getParser().reportError(FATAL, msg);

  47.     }

  48. }