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      1 /*
      2  * Licensed to the Apache Software Foundation (ASF) under one or more
      3  * contributor license agreements.  See the NOTICE file distributed with
      4  * this work for additional information regarding copyright ownership.
      5  * The ASF licenses this file to You under the Apache License, Version 2.0
      6  * (the "License"); you may not use this file except in compliance with
      7  * the License.  You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  */
     18 package org.apache.bcel.generic;
     19 
     20 /**
     21  * Denotes that an instruction may start the process of loading and resolving
     22  * the referenced class in the Virtual Machine.
     23  *
     24  * @version $Id$
     25  */
     26 public interface LoadClass {
     27 
     28     /**
     29      * Returns the ObjectType of the referenced class or interface
     30      * that may be loaded and resolved.
     31      * @return object type that may be loaded or null if a primitive is
     32      * referenced
     33      */
     34     ObjectType getLoadClassType( ConstantPoolGen cpg );
     35 
     36 
     37     /**
     38      * Returns the type associated with this instruction.
     39      * LoadClass instances are always typed, but this type
     40      * does not always refer to the type of the class or interface
     41      * that it possibly forces to load. For example, GETFIELD would
     42      * return the type of the field and not the type of the class
     43      * where the field is defined.
     44      * If no class is forced to be loaded, <B>null</B> is returned.
     45      * An example for this is an ANEWARRAY instruction that creates
     46      * an int[][].
     47      * @see #getLoadClassType(ConstantPoolGen)
     48      */
     49     Type getType( ConstantPoolGen cpg );
     50 }
     51