    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.bcel.generic;
    020
    021/**
    022 * Denotes that an instruction may start the process of loading and resolving the referenced class in the Virtual Machine.
    023 */
    024public interface LoadClass {
    025
    026    /**
    027     * Returns the {@link ObjectType} of the referenced class or interface that may be loaded and resolved.
    028     *
    029     * @param cpg A ConstantPoolGen
    030     * @return object type that may be loaded or null if a primitive is referenced
    031     */
    032    ObjectType getLoadClassType(ConstantPoolGen cpg);
    033
    034    /**
    035     * 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
    036     * 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
    037     * 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
    038     * {@code int[][]}.
    039     *
    040     * @param cpg A ConstantPoolGen
    041     * @return the type associated with this instruction.
    042     * @see #getLoadClassType(ConstantPoolGen)
    043     */
    044    Type getType(ConstantPoolGen cpg);
    045}