1 /*
   2  * reserved comment block
   3  * DO NOT REMOVE OR ALTER!
   4  */
   5 /*
   6  * Copyright 2001-2004 The Apache Software Foundation.
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20 /*
  21  * $Id: Instruction.java,v 1.2.4.1 2005/09/01 15:45:11 pvedula Exp $
  22  */
  23 
  24 package com.sun.org.apache.xalan.internal.xsltc.compiler;
  25 
  26 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  27 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg;
  28 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  29 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
  30 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
  31 
  32 /**
  33  * @author Jacek Ambroziak
  34  * @author Santiago Pericas-Geertsen
  35  */
  36 abstract class Instruction extends SyntaxTreeNode {
  37     /**
  38      * Type check all the children of this node.
  39      */
  40     public Type typeCheck(SymbolTable stable) throws TypeCheckError {
  41         return typeCheckContents(stable);
  42     }
  43 
  44     /**
  45      * Translate this node into JVM bytecodes.
  46      */
  47     public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  48         ErrorMsg msg = new ErrorMsg(ErrorMsg.NOT_IMPLEMENTED_ERR,
  49                                     getClass(), this);
  50         getParser().reportError(FATAL, msg);
  51     }
  52 }