1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*******************************************************************************
* Copyright (c) 2014 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.analysis;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.strobel.decompiler.languages.Region;
import com.strobel.decompiler.languages.java.ast.Identifier;
import cuchaz.enigma.mapping.Entry;
public class SourceIndex
{
private String m_source;
private TreeMap<Token,EntryReference<Entry,Entry>> m_tokenToReference;
private HashMap<EntryReference<Entry,Entry>,Token> m_referenceToToken;
private Map<Entry,Token> m_declarationToToken;
private List<Integer> m_lineOffsets;
public SourceIndex( String source )
{
m_source = source;
m_tokenToReference = Maps.newTreeMap();
m_referenceToToken = Maps.newHashMap();
m_declarationToToken = Maps.newHashMap();
m_lineOffsets = Lists.newArrayList();
// count the lines
m_lineOffsets.add( 0 );
for( int i=0; i<source.length(); i++ )
{
if( source.charAt( i ) == '\n' )
{
m_lineOffsets.add( i + 1 );
}
}
}
public String getSource( )
{
return m_source;
}
public Token getToken( Identifier node )
{
// get a token for this node's region
Region region = node.getRegion();
if( region.getBeginLine() == 0 || region.getEndLine() == 0 )
{
System.err.println( "WARNING: " + node.getNodeType() + " node has invalid region: " + region );
return null;
}
Token token = new Token(
toPos( region.getBeginLine(), region.getBeginColumn() ),
toPos( region.getEndLine(), region.getEndColumn() )
);
// for tokens representing inner classes, make sure we only get the simple name
int pos = node.getName().lastIndexOf( '$' );
if( pos >= 0 )
{
token.end -= pos + 1;
}
// HACKHACK: sometimes node regions are off by one
// I think this is a bug in Procyon, but it's easy to work around
if( !Character.isJavaIdentifierStart( m_source.charAt( token.start ) ) )
{
token.start++;
token.end++;
if( !Character.isJavaIdentifierStart( m_source.charAt( token.start ) ) )
{
throw new IllegalArgumentException( "Region " + region + " does not describe valid token: '" + m_source.substring( token.start, token.end ) + "'" );
}
}
return token;
}
public void addReference( Identifier node, EntryReference<Entry,Entry> deobfReference )
{
Token token = getToken( node );
if( token != null )
{
m_tokenToReference.put( token, deobfReference );
m_referenceToToken.put( deobfReference, token );
}
}
public void addDeclaration( Identifier node, Entry deobfEntry )
{
Token token = getToken( node );
if( token != null )
{
EntryReference<Entry,Entry> reference = new EntryReference<Entry,Entry>( deobfEntry );
m_tokenToReference.put( token, reference );
m_referenceToToken.put( reference, token );
m_declarationToToken.put( deobfEntry, token );
}
}
public Token getReferenceToken( int pos )
{
Token token = m_tokenToReference.floorKey( new Token( pos, pos ) );
if( token.contains( pos ) )
{
return token;
}
return null;
}
public Token getReferenceToken( EntryReference<Entry,Entry> deobfReference )
{
return m_referenceToToken.get( deobfReference );
}
public EntryReference<Entry,Entry> getDeobfReference( Token token )
{
if( token == null )
{
return null;
}
return m_tokenToReference.get( token );
}
public Iterable<Token> referenceTokens( )
{
return m_tokenToReference.keySet();
}
public Iterable<Token> declarationTokens( )
{
return m_declarationToToken.values();
}
public Token getDeclarationToken( Entry deobfEntry )
{
return m_declarationToToken.get( deobfEntry );
}
private int toPos( int line, int col )
{
// line and col are 1-based
return m_lineOffsets.get( line - 1 ) + col - 1;
}
}
|
