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
17package com.android.dx.command.dump;
18
19import com.android.dex.util.FileUtils;
20import com.android.dx.cf.iface.ParseException;
21import com.android.dx.util.HexParser;
22import java.io.UnsupportedEncodingException;
23
24/**
25 * Main class for the class file dumper.
26 */
27public class Main {
28
29    static Args parsedArgs = new Args();
30
31    /**
32     * This class is uninstantiable.
33     */
34    private Main() {
35        // This space intentionally left blank.
36    }
37
38    /**
39     * Run!
40     */
41    public static void main(String[] args) {
42        int at = 0;
43
44        for (/*at*/; at < args.length; at++) {
45            String arg = args[at];
46            if (arg.equals("--") || !arg.startsWith("--")) {
47                break;
48            } else if (arg.equals("--bytes")) {
49                parsedArgs.rawBytes = true;
50            } else if (arg.equals("--basic-blocks")) {
51                parsedArgs.basicBlocks = true;
52            } else if (arg.equals("--rop-blocks")) {
53                parsedArgs.ropBlocks = true;
54            } else if (arg.equals("--optimize")) {
55                parsedArgs.optimize = true;
56            } else if (arg.equals("--ssa-blocks")) {
57                parsedArgs.ssaBlocks = true;
58            } else if (arg.startsWith("--ssa-step=")) {
59                parsedArgs.ssaStep = arg.substring(arg.indexOf('=') + 1);
60            } else if (arg.equals("--debug")) {
61                parsedArgs.debug = true;
62            } else if (arg.equals("--dot")) {
63                parsedArgs.dotDump = true;
64            } else if (arg.equals("--strict")) {
65                parsedArgs.strictParse = true;
66            } else if (arg.startsWith("--width=")) {
67                arg = arg.substring(arg.indexOf('=') + 1);
68                parsedArgs.width = Integer.parseInt(arg);
69            } else if (arg.startsWith("--method=")) {
70                arg = arg.substring(arg.indexOf('=') + 1);
71                parsedArgs.method = arg;
72            } else {
73                System.err.println("unknown option: " + arg);
74                throw new RuntimeException("usage");
75            }
76        }
77
78        if (at == args.length) {
79            System.err.println("no input files specified");
80            throw new RuntimeException("usage");
81        }
82
83        for (/*at*/; at < args.length; at++) {
84            try {
85                String name = args[at];
86                System.out.println("reading " + name + "...");
87                byte[] bytes = FileUtils.readFile(name);
88                if (!name.endsWith(".class")) {
89                    String src;
90                    try {
91                        src = new String(bytes, "utf-8");
92                    } catch (UnsupportedEncodingException ex) {
93                        throw new RuntimeException("shouldn't happen", ex);
94                    }
95                    bytes = HexParser.parse(src);
96                }
97                processOne(name, bytes);
98            } catch (ParseException ex) {
99                System.err.println("\ntrouble parsing:");
100                if (parsedArgs.debug) {
101                    ex.printStackTrace();
102                } else {
103                    ex.printContext(System.err);
104                }
105            }
106        }
107    }
108
109    /**
110     * Processes one file.
111     *
112     * @param name {@code non-null;} name of the file
113     * @param bytes {@code non-null;} contents of the file
114     */
115    private static void processOne(String name, byte[] bytes) {
116        if (parsedArgs.dotDump) {
117            DotDumper.dump(bytes, name, parsedArgs);
118        } else if (parsedArgs.basicBlocks) {
119            BlockDumper.dump(bytes, System.out, name, false, parsedArgs);
120        } else if (parsedArgs.ropBlocks) {
121            BlockDumper.dump(bytes, System.out, name, true, parsedArgs);
122        } else if (parsedArgs.ssaBlocks) {
123            // --optimize ignored with --ssa-blocks
124            parsedArgs.optimize = false;
125            SsaDumper.dump(bytes, System.out, name, parsedArgs);
126        } else {
127            ClassDumper.dump(bytes, System.out, name, parsedArgs);
128        }
129    }
130}
131