1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.ahat.heapdump; 18 19 /** 20 * Enum corresponding to basic types from the binary heap dump format. 21 */ 22 public enum Type { 23 /** 24 * Type used for any Java object. 25 */ 26 OBJECT("Object", 0), // size is 0 to indicate it depends on the size of references 27 28 /** 29 * The primitive boolean type. 30 */ 31 BOOLEAN("boolean", 1), 32 33 /** 34 * The primitive char type. 35 */ 36 CHAR("char", 2), 37 38 /** 39 * The primitive float type. 40 */ 41 FLOAT("float", 4), 42 43 /** 44 * The primitive double type. 45 */ 46 DOUBLE("double", 8), 47 48 /** 49 * The primitive byte type. 50 */ 51 BYTE("byte", 1), 52 53 /** 54 * The primitive short type. 55 */ 56 SHORT("short", 2), 57 58 /** 59 * The primitive int type. 60 */ 61 INT("int", 4), 62 63 /** 64 * The primitive long type. 65 */ 66 LONG("long", 8); 67 68 /** 69 * The name of the type. 70 */ 71 public final String name; 72 73 /** 74 * The number of bytes taken up by values of this type in the Java heap. 75 */ 76 private final int size; 77 78 /** 79 * Get the number of bytes taken up by values of this type in the Java heap. 80 * 81 * @param refSize the size of object references as specified in the heap dump 82 */ size(int refSize)83 int size(int refSize) { 84 return size == 0 ? refSize : size; 85 } 86 Type(String name, int size)87 Type(String name, int size) { 88 this.name = name; 89 this.size = size; 90 } 91 92 @Override toString()93 public String toString() { 94 return name; 95 } 96 } 97