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1
20
21 package com.tonicsystems.jarjar;
22
23 import java.util.*;
24 import org.objectweb.asm.Attribute;
25
26 class RulesImpl implements Rules
27 {
28 private static final String  RESOURCE_SUFFIX = "RESOURCE";
29
30 private Wildcard[] wildcards;
31 private HashMap cache = new HashMap();
32 private boolean verbose;
33
34 public RulesImpl(List ruleList, boolean verbose) {
35 this.verbose = verbose;
36 wildcards = PatternElement.createWildcards(ruleList);
37 }
38
39 public String fixPath(String path) {
40 int slash = path.lastIndexOf('/');
41 String end;
42 if (slash < 0) {
43 end = path;
44 path = RESOURCE_SUFFIX;
45 } else {
46 end = path.substring(slash + 1);
47 path = path.substring(0, slash + 1) + RESOURCE_SUFFIX;
48 }
49 boolean absolute = path.startsWith("/");
50 if (absolute)
51 path = path.substring(1);
52 path = fixName(path);
53 if (absolute)
54 path = "/" + path;
55 path = path.substring(0, path.length() - RESOURCE_SUFFIX.length()) + end;
56 return path;
57 }
58
59 public String fixDesc(String desc) {
60 return fixDesc(desc, false);
61 }
62
63 private String fixDesc(String desc, boolean allowGenerics) {
64 if (desc.charAt(desc.length() - 1) != ';')
65 return desc;
66 String value = (String )cache.get(desc);
67 if (value == null) {
68 if (allowGenerics && (desc.charAt(desc.length() - 2) == '>')) {
69 int lt = desc.indexOf('<');
71 String main = replaceHelper(desc.substring(0, lt) + ";", Wildcard.STYLE_DESC);
72 String param = replaceHelper(desc.substring(lt + 1, desc.length() - 2), Wildcard.STYLE_DESC);
73 value = main.substring(0, main.length() - 1) + "<" + param + ">;";
74 } else {
75 value = replaceHelper(desc, Wildcard.STYLE_DESC);
76 }
77 cache.put(desc, value);
78 }
79 return value;
80 }
81
82 private String replaceHelper(String value, int style) {
83 for (int i = 0; i < wildcards.length; i++) {
84 String test = wildcards[i].replace(value, style);
85 if (test != null)
86 return test;
87 }
88 return value;
89 }
90
91 public String fixName(String name) {
92 if (name == null)
93 return null;
94 String desc = fixDesc("L" + name + ";");
95 return desc.substring(1, desc.length() - 1);
96 }
97
98 public String fixMethodDesc(String desc) {
99 return fixMethodDesc(desc, false);
100 }
101
102 private String fixMethodDesc(String desc, boolean allowGenerics) {
103 String value = (String )cache.get(desc);
104 if (value == null) {
105 if (desc.indexOf('L') < 0) {
106 value = desc;
107 } else {
108 StringBuffer sb = new StringBuffer ();
109 sb.append('(');
110 int end = desc.lastIndexOf(')');
111 for (int i = 1; i < end; i++) {
112 char c = desc.charAt(i);
113 if (c == 'L') {
114 for (int j = i + 1; j < end; j++) {
115 if (desc.charAt(j) == ';') {
116 if (allowGenerics && j + 1 < end && desc.charAt(j + 1) == '>')
117 j += 2;
118 sb.append(fixDesc(desc.substring(i, j + 1), allowGenerics));
119 i = j;
120 break;
121 }
122 }
123 } else {
124 sb.append(c);
125 }
126 }
127 sb.append(')');
128 sb.append(fixDesc(desc.substring(end + 1), allowGenerics));
129 value = sb.toString();
130 }
131 cache.put(desc, value);
132 }
133 return value;
134 }
135
136 public String fixString(String className, String value) {
137 String newValue = fixClassForName(value);
138 if (newValue.equals(value))
139 newValue = fixPath(value);
140 if (newValue.equals(value))
141 newValue = replaceHelper(newValue, Wildcard.STYLE_IDENTIFIER);
142 if (verbose && !newValue.equals(value))
143 System.err.println("Changed " + className + " \"" + value + "\" -> \"" + newValue + "\"");
144 return newValue;
145 }
146
147 private String fixClassForName(String value)
148 {
149 if (value.indexOf('.') >= 0) {
150 String desc1 = value.replace('.', '/');
151 String desc2 = fixDesc(desc1);
152 if (!desc2.equals(desc1))
153 return desc2.replace('/', '.');
154 }
155 return value;
156 }
157
158 public Attribute fixAttribute(Attribute attr) {
159 return attr;
161 }
162
163 public String fixSignature(String signature) {
164 if (signature == null)
165 return null;
166 if (signature.charAt(0) == '(')
167 return fixMethodDesc(signature, true);
168 return fixDesc(signature, true);
169 }
170 }
171 |
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