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.android.dx.merge;
18
19import com.android.dx.io.DexBuffer;
20import com.android.dx.util.Unsigned;
21import java.util.Arrays;
22
23public final class TypeList implements Comparable<TypeList> {
24
25    public static final TypeList EMPTY = new TypeList(null, new short[0]);
26
27    private final DexBuffer buffer;
28    private final short[] types;
29
30    public TypeList(DexBuffer buffer, short[] types) {
31        this.buffer = buffer;
32        this.types = types;
33    }
34
35    public short[] getTypes() {
36        return types;
37    }
38
39    public int compareTo(TypeList other) {
40        for (int i = 0; i < types.length && i < other.types.length; i++) {
41            if (types[i] != other.types[i]) {
42                return Unsigned.compare(types[i], other.types[i]);
43            }
44        }
45        return Unsigned.compare(types.length, other.types.length);
46    }
47
48    @Override public String toString() {
49        StringBuilder result = new StringBuilder();
50        result.append("(");
51        for (int i = 0, typesLength = types.length; i < typesLength; i++) {
52            result.append(buffer != null ? buffer.typeNames().get(types[i]) : types[i]);
53        }
54        result.append(")");
55        return result.toString();
56    }
57}
58