Comparison.java revision d6c77efc0b187577dd7956070adfc7c335f65698 
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.code.Rop;
20import com.android.dx.rop.code.Rops;
21import com.android.dx.rop.type.TypeList;
22
23/**
24 * A comparison between two values of the same type.
25 */
26public enum Comparison {
27
28    /** {@code a < b}. Supports int only. */
29    LT() {
30        @Override Rop rop(TypeList types) {
31            return Rops.opIfLt(types);
32        }
33    },
34
35    /** {@code a <= b}. Supports int only. */
36    LE() {
37        @Override Rop rop(TypeList types) {
38            return Rops.opIfLe(types);
39        }
40    },
41
42    /** {@code a == b}. Supports int and reference types. */
43    EQ() {
44        @Override Rop rop(TypeList types) {
45            return Rops.opIfEq(types);
46        }
47    },
48
49    /** {@code a >= b}. Supports int only. */
50    GE() {
51        @Override Rop rop(TypeList types) {
52            return Rops.opIfGe(types);
53        }
54    },
55
56    /** {@code a > b}. Supports int only. */
57    GT() {
58        @Override Rop rop(TypeList types) {
59            return Rops.opIfGt(types);
60        }
61    },
62
63    /** {@code a != b}. Supports int and reference types. */
64    NE() {
65        @Override Rop rop(TypeList types) {
66            return Rops.opIfNe(types);
67        }
68    };
69
70    abstract Rop rop(TypeList types);
71}
72