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 019import org.apache.bcel.Const; 020 021/** 022 * Denotes basic type such as int. 023 */ 024public final class BasicType extends Type { 025 026 // @since 6.0 no longer final 027 public static BasicType getType(final byte type) { 028 switch (type) { 029 case Const.T_VOID: 030 return VOID; 031 case Const.T_BOOLEAN: 032 return BOOLEAN; 033 case Const.T_BYTE: 034 return BYTE; 035 case Const.T_SHORT: 036 return SHORT; 037 case Const.T_CHAR: 038 return CHAR; 039 case Const.T_INT: 040 return INT; 041 case Const.T_LONG: 042 return LONG; 043 case Const.T_DOUBLE: 044 return DOUBLE; 045 case Const.T_FLOAT: 046 return FLOAT; 047 default: 048 throw new ClassGenException("Invalid type: " + type); 049 } 050 } 051 052 /** 053 * Constructor for basic types such as int, long, 'void' 054 * 055 * @param type one of T_INT, T_BOOLEAN, ..., T_VOID 056 * @see Const 057 */ 058 BasicType(final byte type) { 059 super(type, Const.getShortTypeName(type)); 060 if (type < Const.T_BOOLEAN || type > Const.T_VOID) { 061 throw new ClassGenException("Invalid type: " + type); 062 } 063 } 064 065 /** 066 * @return true if both type objects refer to the same type 067 */ 068 @Override 069 public boolean equals(final Object type) { 070 return type instanceof BasicType && ((BasicType) type).getType() == this.getType(); 071 } 072 073 /** 074 * @return a hash code value for the object. 075 */ 076 @Override 077 public int hashCode() { 078 return super.getType(); 079 } 080}