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1 package com.sun.org.apache.bcel.internal.util;
2
3
56
57 import com.sun.org.apache.bcel.internal.classfile.*;
58 import java.io.*;
59
60
67 final class AttributeHTML implements com.sun.org.apache.bcel.internal.Constants {
68 private String  class_name; private PrintWriter file; private int attr_count = 0;
71 private ConstantHTML constant_html;
72 private ConstantPool constant_pool;
73
74 AttributeHTML(String dir, String class_name, ConstantPool constant_pool,
75 ConstantHTML constant_html) throws IOException
76 {
77 this.class_name = class_name;
78 this.constant_pool = constant_pool;
79 this.constant_html = constant_html;
80
81 file = new PrintWriter(new FileOutputStream(dir + class_name + "_attributes.html"));
82 file.println("<HTML><BODY BGCOLOR=\"#C0C0C0\"><TABLE BORDER=0>");
83 }
84
85 private final String codeLink(int link, int method_number) {
86 return "<A HREF=\"" + class_name + "_code.html#code" +
87 method_number + "@" + link + "\" TARGET=Code>" +
88 link + "</A>";
89 }
90
91 final void close() {
92 file.println("</TABLE></BODY></HTML>");
93 file.close();
94 }
95
96 final void writeAttribute(Attribute attribute, String anchor) throws IOException {
97 writeAttribute(attribute, anchor, 0);
98 }
99
100 final void writeAttribute(Attribute attribute, String anchor, int method_number) throws IOException {
101 byte tag = attribute.getTag();
102 int index;
103
104 if(tag == ATTR_UNKNOWN) return;
106
107 attr_count++;
109 if(attr_count % 2 == 0)
110 file.print("<TR BGCOLOR=\"#C0C0C0\"><TD>");
111 else
112 file.print("<TR BGCOLOR=\"#A0A0A0\"><TD>");
113
114 file.println("<H4><A NAME=\"" + anchor + "\">" + attr_count + " " + ATTRIBUTE_NAMES[tag] + "</A></H4>");
115
116
118 switch(tag) {
119 case ATTR_CODE:
120 Code c = (Code)attribute;
121 Attribute[] attributes = c.getAttributes();
122
123 file.print("<UL><LI>Maximum stack size = " + c.getMaxStack() +
125 "</LI>\n<LI>Number of local variables = " +
126 c.getMaxLocals() + "</LI>\n<LI><A HREF=\"" + class_name +
127 "_code.html#method" + method_number + "\" TARGET=Code>Byte code</A></LI></UL>\n");
128
129 CodeException[] ce = c.getExceptionTable();
131 int len = ce.length;
132
133 if(len > 0) {
134 file.print("<P><B>Exceptions handled</B><UL>");
135
136 for(int i=0; i < len; i++) {
137 int catch_type = ce[i].getCatchType();
139 file.print("<LI>");
140
141 if(catch_type != 0)
142 file.print(constant_html.referenceConstant(catch_type)); else
144 file.print("Any Exception");
145
146 file.print("<BR>(Ranging from lines " + codeLink(ce[i].getStartPC(), method_number) +
147 " to " + codeLink(ce[i].getEndPC(), method_number) + ", handled at line " +
148 codeLink(ce[i].getHandlerPC(), method_number) + ")</LI>");
149 }
150 file.print("</UL>");
151 }
152 break;
153
154 case ATTR_CONSTANT_VALUE:
155 index = ((ConstantValue)attribute).getConstantValueIndex();
156
157 file.print("<UL><LI><A HREF=\"" + class_name + "_cp.html#cp" + index +
159 "\" TARGET=\"ConstantPool\">Constant value index(" + index +")</A></UL>\n");
160 break;
161
162 case ATTR_SOURCE_FILE:
163 index = ((SourceFile)attribute).getSourceFileIndex();
164
165 file.print("<UL><LI><A HREF=\"" + class_name + "_cp.html#cp" + index +
167 "\" TARGET=\"ConstantPool\">Source file index(" + index +")</A></UL>\n");
168 break;
169
170 case ATTR_EXCEPTIONS:
171 int[] indices = ((ExceptionTable)attribute).getExceptionIndexTable();
173
174 file.print("<UL>");
175
176 for(int i=0; i < indices.length; i++)
177 file.print("<LI><A HREF=\"" + class_name + "_cp.html#cp" + indices[i] +
178 "\" TARGET=\"ConstantPool\">Exception class index(" + indices[i] + ")</A>\n");
179
180 file.print("</UL>\n");
181 break;
182
183 case ATTR_LINE_NUMBER_TABLE:
184 LineNumber[] line_numbers =((LineNumberTable)attribute).getLineNumberTable();
185
186 file.print("<P>");
188
189 for(int i=0; i < line_numbers.length; i++) {
190 file.print("(" + line_numbers[i].getStartPC() + ", " + line_numbers[i].getLineNumber() + ")");
191
192 if(i < line_numbers.length - 1)
193 file.print(", "); }
195 break;
196
197 case ATTR_LOCAL_VARIABLE_TABLE:
198 LocalVariable[] vars = ((LocalVariableTable)attribute).getLocalVariableTable();
199
200 file.print("<UL>");
202
203 for(int i=0; i < vars.length; i++) {
204 index = vars[i].getSignatureIndex();
205 String signature = ((ConstantUtf8)constant_pool.getConstant(index, CONSTANT_Utf8)).getBytes();
206 signature = Utility.signatureToString(signature, false);
207 int start = vars[i].getStartPC();
208 int end = (start + vars[i].getLength());
209
210 file.println("<LI>" + Class2HTML.referenceType(signature) +
211 " <B>" + vars[i].getName() + "</B> in slot %" + vars[i].getIndex() +
212 "<BR>Valid from lines " +
213 "<A HREF=\"" + class_name + "_code.html#code" + method_number + "@" + start + "\" TARGET=Code>" +
214 start + "</A> to " +
215 "<A HREF=\"" + class_name + "_code.html#code" + method_number + "@" + end + "\" TARGET=Code>" +
216 end + "</A></LI>");
217 }
218 file.print("</UL>\n");
219
220 break;
221
222 case ATTR_INNER_CLASSES:
223 InnerClass[] classes = ((InnerClasses)attribute).getInnerClasses();
224
225 file.print("<UL>");
227
228 for(int i=0; i < classes.length; i++) {
229 String name, access;
230
231 index = classes[i].getInnerNameIndex();
232 if(index > 0)
233 name =((ConstantUtf8)constant_pool.getConstant(index, CONSTANT_Utf8)).getBytes();
234 else
235 name = "<anonymous>";
236
237 access = Utility.accessToString(classes[i].getInnerAccessFlags());
238
239 file.print("<LI><FONT COLOR=\"#FF0000\">" + access + "</FONT> "+
240 constant_html.referenceConstant(classes[i].getInnerClassIndex()) +
241 " in class " +
242 constant_html.referenceConstant(classes[i].getOuterClassIndex()) +
243 " named " + name + "</LI>\n");
244 }
245
246 file.print("</UL>\n");
247 break;
248
249 default: file.print("<P>" + attribute.toString());
251 }
252
253 file.println("</TD></TR>");
254 file.flush();
255 }
256 }
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