    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 *  Unless required by applicable law or agreed to in writing, software
    012 *  distributed under the License is distributed on an "AS IS" BASIS,
    013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 *  See the License for the specific language governing permissions and
    015 *  limitations under the License.
    016 *
    017 */
    018package org.apache.bcel.generic;
    019
    020/**
    021 * Denotes that an instruction may start the process of loading and resolving
    022 * the referenced class in the Virtual Machine.
    023 *
    024 */
    025public interface LoadClass {
    026
    027    /**
    028     * Returns the ObjectType of the referenced class or interface
    029     * that may be loaded and resolved.
    030     * @return object type that may be loaded or null if a primitive is
    031     * referenced
    032     */
    033    ObjectType getLoadClassType( ConstantPoolGen cpg );
    034
    035
    036    /**
    037     * Returns the type associated with this instruction.
    038     * LoadClass instances are always typed, but this type
    039     * does not always refer to the type of the class or interface
    040     * that it possibly forces to load. For example, GETFIELD would
    041     * return the type of the field and not the type of the class
    042     * where the field is defined.
    043     * If no class is forced to be loaded, <B>null</B> is returned.
    044     * An example for this is an ANEWARRAY instruction that creates
    045     * an int[][].
    046     * @see #getLoadClassType(ConstantPoolGen)
    047     */
    048    Type getType( ConstantPoolGen cpg );
    049}