final void writeAttribute(Attribute attribute, String anchor, int method_number) throws IOException { byte tag = attribute.getTag(); int index; if (tag == ATTR_UNKNOWN) // Don't know what to do about this one return; attr_count++; // Increment number of attributes found so far if (attr_count % 2 == 0) file.print("<TR BGCOLOR=\"#C0C0C0\"><TD>"); else file.print("<TR BGCOLOR=\"#A0A0A0\"><TD>"); file.println( "<H4><A NAME=\"" + anchor + "\">" + attr_count + " " + ATTRIBUTE_NAMES[tag] + "</A></H4>"); /* Handle different attributes */ switch (tag) { case ATTR_CODE: Code c = (Code) attribute; // Some directly printable values file.print( "<UL><LI>Maximum stack size = " + c.getMaxStack() + "</LI>\n<LI>Number of local variables = " + c.getMaxLocals() + "</LI>\n<LI><A HREF=\"" + class_name + "_code.html#method" + method_number + "\" TARGET=Code>Byte code</A></LI></UL>\n"); // Get handled exceptions and list them CodeException[] ce = c.getExceptionTable(); int len = ce.length; if (len > 0) { file.print("<P><B>Exceptions handled</B><UL>"); for (int i = 0; i < len; i++) { int catch_type = ce[i].getCatchType(); // Index in constant pool file.print("<LI>"); if (catch_type != 0) file.print(constant_html.referenceConstant(catch_type)); // Create Link to _cp.html else file.print("Any Exception"); file.print( "<BR>(Ranging from lines " + codeLink(ce[i].getStartPC(), method_number) + " to " + codeLink(ce[i].getEndPC(), method_number) + ", handled at line " + codeLink(ce[i].getHandlerPC(), method_number) + ")</LI>"); } file.print("</UL>"); } break; case ATTR_CONSTANT_VALUE: index = ((ConstantValue) attribute).getConstantValueIndex(); // Reference _cp.html file.print( "<UL><LI><A HREF=\"" + class_name + "_cp.html#cp" + index + "\" TARGET=\"ConstantPool\">Constant value index(" + index + ")</A></UL>\n"); break; case ATTR_SOURCE_FILE: index = ((SourceFile) attribute).getSourceFileIndex(); // Reference _cp.html file.print( "<UL><LI><A HREF=\"" + class_name + "_cp.html#cp" + index + "\" TARGET=\"ConstantPool\">Source file index(" + index + ")</A></UL>\n"); break; case ATTR_EXCEPTIONS: // List thrown exceptions int[] indices = ((ExceptionTable) attribute).getExceptionIndexTable(); file.print("<UL>"); for (int i = 0; i < indices.length; i++) file.print( "<LI><A HREF=\"" + class_name + "_cp.html#cp" + indices[i] + "\" TARGET=\"ConstantPool\">Exception class index(" + indices[i] + ")</A>\n"); file.print("</UL>\n"); break; case ATTR_LINE_NUMBER_TABLE: LineNumber[] line_numbers = ((LineNumberTable) attribute).getLineNumberTable(); // List line number pairs file.print("<P>"); for (int i = 0; i < line_numbers.length; i++) { file.print( "(" + line_numbers[i].getStartPC() + ", " + line_numbers[i].getLineNumber() + ")"); if (i < line_numbers.length - 1) file.print(", "); // breakable } break; case ATTR_LOCAL_VARIABLE_TABLE: LocalVariable[] vars = ((LocalVariableTable) attribute).getLocalVariableTable(); // List name, range and type file.print("<UL>"); for (int i = 0; i < vars.length; i++) { index = vars[i].getSignatureIndex(); String signature = ((ConstantUtf8) constant_pool.getConstant(index, CONSTANT_Utf8)).getBytes(); signature = Utility.signatureToString(signature, false); int start = vars[i].getStartPC(); int end = (start + vars[i].getLength()); file.println( "<LI>" + Class2HTML.referenceType(signature) + " <B>" + vars[i].getName() + "</B> in slot %" + vars[i].getIndex() + "<BR>Valid from lines " + "<A HREF=\"" + class_name + "_code.html#code" + method_number + "@" + start + "\" TARGET=Code>" + start + "</A> to " + "<A HREF=\"" + class_name + "_code.html#code" + method_number + "@" + end + "\" TARGET=Code>" + end + "</A></LI>"); } file.print("</UL>\n"); break; case ATTR_INNER_CLASSES: InnerClass[] classes = ((InnerClasses) attribute).getInnerClasses(); // List inner classes file.print("<UL>"); for (int i = 0; i < classes.length; i++) { String name, access; index = classes[i].getInnerNameIndex(); if (index > 0) name = ((ConstantUtf8) constant_pool.getConstant(index, CONSTANT_Utf8)).getBytes(); else name = "<anonymous>"; access = Utility.accessToString(classes[i].getInnerAccessFlags()); file.print( "<LI><FONT COLOR=\"#FF0000\">" + access + "</FONT> " + constant_html.referenceConstant(classes[i].getInnerClassIndex()) + " in class " + constant_html.referenceConstant(classes[i].getOuterClassIndex()) + " named " + name + "</LI>\n"); } file.print("</UL>\n"); break; default: // Such as Unknown attribute or Deprecated file.print("<P>" + attribute.toString()); } file.println("</TD></TR>"); file.flush(); }
private void writeConstant(int index) { byte tag = constants[index].getTag(); int class_index, name_index; String ref; // The header is always the same file.println("<H4> <A NAME=cp" + index + ">" + index + "</A> " + CONSTANT_NAMES[tag] + "</H4>"); /* For every constant type get the needed parameters and print them appropiately */ switch (tag) { case CONSTANT_InterfaceMethodref: case CONSTANT_Methodref: // Get class_index and name_and_type_index, depending on type if (tag == CONSTANT_Methodref) { ConstantMethodref c = (ConstantMethodref) constant_pool.getConstant(index, CONSTANT_Methodref); class_index = c.getClassIndex(); name_index = c.getNameAndTypeIndex(); } else { ConstantInterfaceMethodref c1 = (ConstantInterfaceMethodref) constant_pool.getConstant(index, CONSTANT_InterfaceMethodref); class_index = c1.getClassIndex(); name_index = c1.getNameAndTypeIndex(); } // Get method name and its class String method_name = constant_pool.constantToString(name_index, CONSTANT_NameAndType); String html_method_name = Class2HTML.toHTML(method_name); // Partially compacted class name, i.e., / -> . String method_class = constant_pool.constantToString(class_index, CONSTANT_Class); String short_method_class = Utility.compactClassName(method_class); // I.e., remove java.lang. short_method_class = Utility.compactClassName(method_class); // I.e., remove java.lang. short_method_class = Utility.compactClassName( short_method_class, class_package + ".", true); // Remove class package prefix // Get method signature ConstantNameAndType c2 = (ConstantNameAndType) constant_pool.getConstant(name_index, CONSTANT_NameAndType); String signature = constant_pool.constantToString(c2.getSignatureIndex(), CONSTANT_Utf8); // Get array of strings containing the argument types String[] args = Utility.methodSignatureArgumentTypes(signature, false); // Get return type string String type = Utility.methodSignatureReturnType(signature, false); String ret_type = Class2HTML.referenceType(type); StringBuffer buf = new StringBuffer("("); for (int i = 0; i < args.length; i++) { buf.append(Class2HTML.referenceType(args[i])); if (i < args.length - 1) buf.append(", "); } buf.append(")"); String arg_types = buf.toString(); if (method_class.equals(class_name)) // Method is local to class ref = "<A HREF=\"" + class_name + "_code.html#method" + getMethodNumber(method_name + signature) + "\" TARGET=Code>" + html_method_name + "</A>"; else ref = "<A HREF=\"" + method_class + ".html" + "\" TARGET=_top>" + short_method_class + "</A>." + html_method_name; constant_ref[index] = ret_type + " <A HREF=\"" + class_name + "_cp.html#cp" + class_index + "\" TARGET=Constants>" + short_method_class + "</A>.<A HREF=\"" + class_name + "_cp.html#cp" + index + "\" TARGET=ConstantPool>" + html_method_name + "</A> " + arg_types; file.println( "<P><TT>" + ret_type + " " + ref + arg_types + " </TT>\n<UL>" + "<LI><A HREF=\"#cp" + class_index + "\">Class index(" + class_index + ")</A>\n" + "<LI><A HREF=\"#cp" + name_index + "\">NameAndType index(" + name_index + ")</A></UL>"); break; case CONSTANT_Fieldref: // Get class_index and name_and_type_index ConstantFieldref c3 = (ConstantFieldref) constant_pool.getConstant(index, CONSTANT_Fieldref); class_index = c3.getClassIndex(); name_index = c3.getNameAndTypeIndex(); // Get method name and its class (compacted) String field_class = constant_pool.constantToString(class_index, CONSTANT_Class); String short_field_class = Utility.compactClassName(field_class); // I.e., remove java.lang. short_field_class = Utility.compactClassName( short_field_class, class_package + ".", true); // Remove class package prefix String field_name = constant_pool.constantToString(name_index, CONSTANT_NameAndType); if (field_class.equals(class_name)) // Field is local to class ref = "<A HREF=\"" + field_class + "_methods.html#field" + field_name + "\" TARGET=Methods>" + field_name + "</A>"; else ref = "<A HREF=\"" + field_class + ".html\" TARGET=_top>" + short_field_class + "</A>." + field_name + "\n"; constant_ref[index] = "<A HREF=\"" + class_name + "_cp.html#cp" + class_index + "\" TARGET=Constants>" + short_field_class + "</A>.<A HREF=\"" + class_name + "_cp.html#cp" + index + "\" TARGET=ConstantPool>" + field_name + "</A>"; file.println( "<P><TT>" + ref + "</TT><BR>\n" + "<UL>" + "<LI><A HREF=\"#cp" + class_index + "\">Class(" + class_index + ")</A><BR>\n" + "<LI><A HREF=\"#cp" + name_index + "\">NameAndType(" + name_index + ")</A></UL>"); break; case CONSTANT_Class: ConstantClass c4 = (ConstantClass) constant_pool.getConstant(index, CONSTANT_Class); name_index = c4.getNameIndex(); String class_name2 = constant_pool.constantToString(index, tag); // / -> . String short_class_name = Utility.compactClassName(class_name2); // I.e., remove java.lang. short_class_name = Utility.compactClassName( short_class_name, class_package + ".", true); // Remove class package prefix ref = "<A HREF=\"" + class_name2 + ".html\" TARGET=_top>" + short_class_name + "</A>"; constant_ref[index] = "<A HREF=\"" + class_name + "_cp.html#cp" + index + "\" TARGET=ConstantPool>" + short_class_name + "</A>"; file.println( "<P><TT>" + ref + "</TT><UL>" + "<LI><A HREF=\"#cp" + name_index + "\">Name index(" + name_index + ")</A></UL>\n"); break; case CONSTANT_String: ConstantString c5 = (ConstantString) constant_pool.getConstant(index, CONSTANT_String); name_index = c5.getStringIndex(); String str = Class2HTML.toHTML(constant_pool.constantToString(index, tag)); file.println( "<P><TT>" + str + "</TT><UL>" + "<LI><A HREF=\"#cp" + name_index + "\">Name index(" + name_index + ")</A></UL>\n"); break; case CONSTANT_NameAndType: ConstantNameAndType c6 = (ConstantNameAndType) constant_pool.getConstant(index, CONSTANT_NameAndType); name_index = c6.getNameIndex(); int signature_index = c6.getSignatureIndex(); file.println( "<P><TT>" + Class2HTML.toHTML(constant_pool.constantToString(index, tag)) + "</TT><UL>" + "<LI><A HREF=\"#cp" + name_index + "\">Name index(" + name_index + ")</A>\n" + "<LI><A HREF=\"#cp" + signature_index + "\">Signature index(" + signature_index + ")</A></UL>\n"); break; default: file.println( "<P><TT>" + Class2HTML.toHTML(constant_pool.constantToString(index, tag)) + "</TT>\n"); } // switch }