1/*
2 * Copyright (C) 2009 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.android.dexdeps;
18
19public class MethodRef {
20    private String mDeclClass, mReturnType, mMethodName;
21    private String[] mArgTypes;
22
23    /**
24     * Initializes a new field reference.
25     */
26    public MethodRef(String declClass, String[] argTypes, String returnType,
27            String methodName) {
28        mDeclClass = declClass;
29        mArgTypes = argTypes;
30        mReturnType = returnType;
31        mMethodName = methodName;
32    }
33
34    /**
35     * Gets the name of the method's declaring class.
36     */
37    public String getDeclClassName() {
38        return mDeclClass;
39    }
40
41    /**
42     * Gets the method's descriptor.
43     */
44    public String getDescriptor() {
45        return descriptorFromProtoArray(mArgTypes, mReturnType);
46    }
47
48    /**
49     * Gets the method's name.
50     */
51    public String getName() {
52        return mMethodName;
53    }
54
55    /**
56     * Gets an array of method argument types.
57     */
58    public String[] getArgumentTypeNames() {
59        return mArgTypes;
60    }
61
62    /**
63     * Gets the method's return type.  Examples: "Ljava/lang/String;", "[I".
64     */
65    public String getReturnTypeName() {
66        return mReturnType;
67    }
68
69    /**
70     * Returns the method descriptor, given the argument and return type
71     * prototype strings.
72     */
73    private static String descriptorFromProtoArray(String[] protos,
74            String returnType) {
75        StringBuilder builder = new StringBuilder();
76
77        builder.append("(");
78        for (int i = 0; i < protos.length; i++) {
79            builder.append(protos[i]);
80        }
81
82        builder.append(")");
83        builder.append(returnType);
84
85        return builder.toString();
86    }
87}
88