1 /*
2  * Copyright (C) 2007 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.dx.rop.cst;
18 
19 import com.android.dx.rop.type.Type;
20 
21 /**
22  * Constants of type {@code CONSTANT_Fieldref_info}.
23  */
24 public final class CstFieldRef extends CstMemberRef {
25     /**
26      * Returns an instance of this class that represents the static
27      * field which should hold the class corresponding to a given
28      * primitive type. For example, if given {@link Type#INT}, this
29      * method returns an instance corresponding to the field
30      * {@code java.lang.Integer.TYPE}.
31      *
32      * @param primitiveType {@code non-null;} the primitive type
33      * @return {@code non-null;} the corresponding static field
34      */
forPrimitiveType(Type primitiveType)35     public static CstFieldRef forPrimitiveType(Type primitiveType) {
36         return new CstFieldRef(CstType.forBoxedPrimitiveType(primitiveType),
37                 CstNat.PRIMITIVE_TYPE_NAT);
38     }
39 
40     /**
41      * Constructs an instance.
42      *
43      * @param definingClass {@code non-null;} the type of the defining class
44      * @param nat {@code non-null;} the name-and-type
45      */
CstFieldRef(CstType definingClass, CstNat nat)46     public CstFieldRef(CstType definingClass, CstNat nat) {
47         super(definingClass, nat);
48     }
49 
50     /** {@inheritDoc} */
51     @Override
typeName()52     public String typeName() {
53         return "field";
54     }
55 
56     /**
57      * Returns the type of this field.
58      *
59      * @return {@code non-null;} the field's type
60      */
61     @Override
getType()62     public Type getType() {
63         return getNat().getFieldType();
64     }
65 
66     /** {@inheritDoc} */
67     @Override
compareTo0(Constant other)68     protected int compareTo0(Constant other) {
69         int cmp = super.compareTo0(other);
70 
71         if (cmp != 0) {
72             return cmp;
73         }
74 
75         CstFieldRef otherField = (CstFieldRef) other;
76         CstString thisDescriptor = getNat().getDescriptor();
77         CstString otherDescriptor = otherField.getNat().getDescriptor();
78         return thisDescriptor.compareTo(otherDescriptor);
79     }
80 }
81