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 020import org.apache.bcel.Const; 021 022/** 023 * Denotes basic type such as int. 024 * 025 */ 026public final class BasicType extends Type { 027 028 // @since 6.0 no longer final 029 public static BasicType getType(final byte type) { 030 switch (type) { 031 case Const.T_VOID: 032 return VOID; 033 case Const.T_BOOLEAN: 034 return BOOLEAN; 035 case Const.T_BYTE: 036 return BYTE; 037 case Const.T_SHORT: 038 return SHORT; 039 case Const.T_CHAR: 040 return CHAR; 041 case Const.T_INT: 042 return INT; 043 case Const.T_LONG: 044 return LONG; 045 case Const.T_DOUBLE: 046 return DOUBLE; 047 case Const.T_FLOAT: 048 return FLOAT; 049 default: 050 throw new ClassGenException("Invalid type: " + type); 051 } 052 } 053 054 /** 055 * Constructor for basic types such as int, long, `void' 056 * 057 * @param type one of T_INT, T_BOOLEAN, ..., T_VOID 058 * @see Const 059 */ 060 BasicType(final byte type) { 061 super(type, Const.getShortTypeName(type)); 062 if (type < Const.T_BOOLEAN || type > Const.T_VOID) { 063 throw new ClassGenException("Invalid type: " + type); 064 } 065 } 066 067 /** 068 * @return true if both type objects refer to the same type 069 */ 070 @Override 071 public boolean equals(final Object type) { 072 return type instanceof BasicType && ((BasicType) type).getType() == this.getType(); 073 } 074 075 /** 076 * @return a hash code value for the object. 077 */ 078 @Override 079 public int hashCode() { 080 return super.getType(); 081 } 082}