1/* 2 * Copyright (C) 2011 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 17package com.google.dexmaker; 18 19import com.android.dx.rop.cst.CstFieldRef; 20import com.android.dx.rop.cst.CstNat; 21import com.android.dx.rop.cst.CstString; 22 23/** 24 * Identifies a field. 25 * 26 * @param <D> the type declaring this field 27 * @param <V> the type of value this field holds 28 */ 29public final class FieldId<D, V> { 30 final TypeId<D> declaringType; 31 final TypeId<V> type; 32 final String name; 33 34 /** cached converted state */ 35 final CstNat nat; 36 final CstFieldRef constant; 37 38 FieldId(TypeId<D> declaringType, TypeId<V> type, String name) { 39 if (declaringType == null || type == null || name == null) { 40 throw new NullPointerException(); 41 } 42 this.declaringType = declaringType; 43 this.type = type; 44 this.name = name; 45 this.nat = new CstNat(new CstString(name), new CstString(type.name)); 46 this.constant = new CstFieldRef(declaringType.constant, nat); 47 } 48 49 public TypeId<D> getDeclaringType() { 50 return declaringType; 51 } 52 53 public TypeId<V> getType() { 54 return type; 55 } 56 57 public String getName() { 58 return name; 59 } 60 61 @Override public boolean equals(Object o) { 62 return o instanceof FieldId 63 && ((FieldId<?, ?>) o).declaringType.equals(declaringType) 64 && ((FieldId<?, ?>) o).name.equals(name); 65 } 66 67 @Override public int hashCode() { 68 return declaringType.hashCode() + 37 * name.hashCode(); 69 } 70 71 @Override public String toString() { 72 return declaringType + "." + name; 73 } 74} 75