    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 */
    017package org.apache.bcel.generic;
    018
    019/**
    020 * Denotes that an instruction may start the process of loading and resolving the referenced class in the Virtual Machine.
    021 */
    022public interface LoadClass {
    023
    024    /**
    025     * Returns the {@link ObjectType} of the referenced class or interface that may be loaded and resolved.
    026     *
    027     * @param cpg A ConstantPoolGen
    028     * @return object type that may be loaded or null if a primitive is referenced
    029     */
    030    ObjectType getLoadClassType(ConstantPoolGen cpg);
    031
    032    /**
    033     * Returns the type associated with this instruction. LoadClass instances are always typed, but this type does not always refer to the type of the class or
    034     * interface that it possibly forces to load. For example, {@link GETFIELD} would return the type of the field and not the type of the class where the field
    035     * is defined. If no class is forced to be loaded, {@code null} is returned. An example for this is an {@link NEWARRAY} instruction that creates an
    036     * {@code int[][]}.
    037     *
    038     * @param cpg A ConstantPoolGen
    039     * @return the type associated with this instruction.
    040     * @see #getLoadClassType(ConstantPoolGen)
    041     */
    042    Type getType(ConstantPoolGen cpg);
    043}