You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
622 lines
22 KiB
622 lines
22 KiB
/*
|
|
* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*/
|
|
package com.sun.org.apache.bcel.internal.util;
|
|
|
|
/* ====================================================================
|
|
* The Apache Software License, Version 1.1
|
|
*
|
|
* Copyright (c) 2001 The Apache Software Foundation. All rights
|
|
* reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. The end-user documentation included with the redistribution,
|
|
* if any, must include the following acknowledgment:
|
|
* "This product includes software developed by the
|
|
* Apache Software Foundation (http://www.apache.org/)."
|
|
* Alternately, this acknowledgment may appear in the software itself,
|
|
* if and wherever such third-party acknowledgments normally appear.
|
|
*
|
|
* 4. The names "Apache" and "Apache Software Foundation" and
|
|
* "Apache BCEL" must not be used to endorse or promote products
|
|
* derived from this software without prior written permission. For
|
|
* written permission, please contact apache@apache.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "Apache",
|
|
* "Apache BCEL", nor may "Apache" appear in their name, without
|
|
* prior written permission of the Apache Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This software consists of voluntary contributions made by many
|
|
* individuals on behalf of the Apache Software Foundation. For more
|
|
* information on the Apache Software Foundation, please see
|
|
* <http://www.apache.org/>.
|
|
*/
|
|
|
|
import com.sun.org.apache.bcel.internal.classfile.*;
|
|
import java.io.*;
|
|
import java.util.BitSet;
|
|
|
|
/**
|
|
* Convert code into HTML file.
|
|
*
|
|
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
|
|
*
|
|
*/
|
|
final class CodeHTML implements com.sun.org.apache.bcel.internal.Constants {
|
|
private String class_name; // name of current class
|
|
private Method[] methods; // Methods to print
|
|
private PrintWriter file; // file to write to
|
|
private BitSet goto_set;
|
|
private ConstantPool constant_pool;
|
|
private ConstantHTML constant_html;
|
|
private static boolean wide=false;
|
|
|
|
CodeHTML(String dir, String class_name,
|
|
Method[] methods, ConstantPool constant_pool,
|
|
ConstantHTML constant_html) throws IOException
|
|
{
|
|
this.class_name = class_name;
|
|
this.methods = methods;
|
|
this.constant_pool = constant_pool;
|
|
this.constant_html = constant_html;
|
|
|
|
file = new PrintWriter(new FileOutputStream(dir + class_name + "_code.html"));
|
|
file.println("<HTML><BODY BGCOLOR=\"#C0C0C0\">");
|
|
|
|
for(int i=0; i < methods.length; i++)
|
|
writeMethod(methods[i], i);
|
|
|
|
file.println("</BODY></HTML>");
|
|
file.close();
|
|
}
|
|
|
|
/**
|
|
* Disassemble a stream of byte codes and return the
|
|
* string representation.
|
|
*
|
|
* @param stream data input stream
|
|
* @return String representation of byte code
|
|
*/
|
|
private final String codeToHTML(ByteSequence bytes, int method_number)
|
|
throws IOException
|
|
{
|
|
short opcode = (short)bytes.readUnsignedByte();
|
|
StringBuffer buf;
|
|
String name, signature;
|
|
int default_offset=0, low, high;
|
|
int index, class_index, vindex, constant;
|
|
int[] jump_table;
|
|
int no_pad_bytes=0, offset;
|
|
|
|
buf = new StringBuffer("<TT>" + OPCODE_NAMES[opcode] + "</TT></TD><TD>");
|
|
|
|
/* Special case: Skip (0-3) padding bytes, i.e., the
|
|
* following bytes are 4-byte-aligned
|
|
*/
|
|
if((opcode == TABLESWITCH) || (opcode == LOOKUPSWITCH)) {
|
|
int remainder = bytes.getIndex() % 4;
|
|
no_pad_bytes = (remainder == 0)? 0 : 4 - remainder;
|
|
|
|
for(int i=0; i < no_pad_bytes; i++)
|
|
bytes.readByte();
|
|
|
|
// Both cases have a field default_offset in common
|
|
default_offset = bytes.readInt();
|
|
}
|
|
|
|
switch(opcode) {
|
|
case TABLESWITCH:
|
|
low = bytes.readInt();
|
|
high = bytes.readInt();
|
|
|
|
offset = bytes.getIndex() - 12 - no_pad_bytes - 1;
|
|
default_offset += offset;
|
|
|
|
buf.append("<TABLE BORDER=1><TR>");
|
|
|
|
// Print switch indices in first row (and default)
|
|
jump_table = new int[high - low + 1];
|
|
for(int i=0; i < jump_table.length; i++) {
|
|
jump_table[i] = offset + bytes.readInt();
|
|
|
|
buf.append("<TH>" + (low + i) + "</TH>");
|
|
}
|
|
buf.append("<TH>default</TH></TR>\n<TR>");
|
|
|
|
// Print target and default indices in second row
|
|
for(int i=0; i < jump_table.length; i++)
|
|
buf.append("<TD><A HREF=\"#code" + method_number + "@" +
|
|
jump_table[i] + "\">" + jump_table[i] + "</A></TD>");
|
|
buf.append("<TD><A HREF=\"#code" + method_number + "@" +
|
|
default_offset + "\">" + default_offset + "</A></TD></TR>\n</TABLE>\n");
|
|
|
|
break;
|
|
|
|
/* Lookup switch has variable length arguments.
|
|
*/
|
|
case LOOKUPSWITCH:
|
|
int npairs = bytes.readInt();
|
|
offset = bytes.getIndex() - 8 - no_pad_bytes - 1;
|
|
jump_table = new int[npairs];
|
|
default_offset += offset;
|
|
|
|
buf.append("<TABLE BORDER=1><TR>");
|
|
|
|
// Print switch indices in first row (and default)
|
|
for(int i=0; i < npairs; i++) {
|
|
int match = bytes.readInt();
|
|
|
|
jump_table[i] = offset + bytes.readInt();
|
|
buf.append("<TH>" + match + "</TH>");
|
|
}
|
|
buf.append("<TH>default</TH></TR>\n<TR>");
|
|
|
|
// Print target and default indices in second row
|
|
for(int i=0; i < npairs; i++)
|
|
buf.append("<TD><A HREF=\"#code" + method_number + "@" +
|
|
jump_table[i] + "\">" + jump_table[i] + "</A></TD>");
|
|
buf.append("<TD><A HREF=\"#code" + method_number + "@" +
|
|
default_offset + "\">" + default_offset + "</A></TD></TR>\n</TABLE>\n");
|
|
break;
|
|
|
|
/* Two address bytes + offset from start of byte stream form the
|
|
* jump target.
|
|
*/
|
|
case GOTO: case IFEQ: case IFGE: case IFGT:
|
|
case IFLE: case IFLT:
|
|
case IFNE: case IFNONNULL: case IFNULL: case IF_ACMPEQ:
|
|
case IF_ACMPNE: case IF_ICMPEQ: case IF_ICMPGE: case IF_ICMPGT:
|
|
case IF_ICMPLE: case IF_ICMPLT: case IF_ICMPNE: case JSR:
|
|
|
|
index = (int)(bytes.getIndex() + bytes.readShort() - 1);
|
|
|
|
buf.append("<A HREF=\"#code" + method_number + "@" + index + "\">" + index + "</A>");
|
|
break;
|
|
|
|
/* Same for 32-bit wide jumps
|
|
*/
|
|
case GOTO_W: case JSR_W:
|
|
int windex = bytes.getIndex() + bytes.readInt() - 1;
|
|
buf.append("<A HREF=\"#code" + method_number + "@" + windex + "\">" +
|
|
windex + "</A>");
|
|
break;
|
|
|
|
/* Index byte references local variable (register)
|
|
*/
|
|
case ALOAD: case ASTORE: case DLOAD: case DSTORE: case FLOAD:
|
|
case FSTORE: case ILOAD: case ISTORE: case LLOAD: case LSTORE:
|
|
case RET:
|
|
if(wide) {
|
|
vindex = bytes.readShort();
|
|
wide=false; // Clear flag
|
|
}
|
|
else
|
|
vindex = bytes.readUnsignedByte();
|
|
|
|
buf.append("%" + vindex);
|
|
break;
|
|
|
|
/*
|
|
* Remember wide byte which is used to form a 16-bit address in the
|
|
* following instruction. Relies on that the method is called again with
|
|
* the following opcode.
|
|
*/
|
|
case WIDE:
|
|
wide = true;
|
|
buf.append("(wide)");
|
|
break;
|
|
|
|
/* Array of basic type.
|
|
*/
|
|
case NEWARRAY:
|
|
buf.append("<FONT COLOR=\"#00FF00\">" + TYPE_NAMES[bytes.readByte()] + "</FONT>");
|
|
break;
|
|
|
|
/* Access object/class fields.
|
|
*/
|
|
case GETFIELD: case GETSTATIC: case PUTFIELD: case PUTSTATIC:
|
|
index = bytes.readShort();
|
|
ConstantFieldref c1 = (ConstantFieldref)constant_pool.getConstant(index, CONSTANT_Fieldref);
|
|
|
|
class_index = c1.getClassIndex();
|
|
name = constant_pool.getConstantString(class_index, CONSTANT_Class);
|
|
name = Utility.compactClassName(name, false);
|
|
|
|
index = c1.getNameAndTypeIndex();
|
|
String field_name = constant_pool.constantToString(index, CONSTANT_NameAndType);
|
|
|
|
if(name.equals(class_name)) { // Local field
|
|
buf.append("<A HREF=\"" + class_name + "_methods.html#field" + field_name +
|
|
"\" TARGET=Methods>" + field_name + "</A>\n");
|
|
}
|
|
else
|
|
buf.append(constant_html.referenceConstant(class_index) + "." + field_name);
|
|
|
|
break;
|
|
|
|
/* Operands are references to classes in constant pool
|
|
*/
|
|
case CHECKCAST: case INSTANCEOF: case NEW:
|
|
index = bytes.readShort();
|
|
buf.append(constant_html.referenceConstant(index));
|
|
break;
|
|
|
|
/* Operands are references to methods in constant pool
|
|
*/
|
|
case INVOKESPECIAL: case INVOKESTATIC: case INVOKEVIRTUAL: case INVOKEINTERFACE:
|
|
int m_index = bytes.readShort();
|
|
String str;
|
|
|
|
if(opcode == INVOKEINTERFACE) { // Special treatment needed
|
|
int nargs = bytes.readUnsignedByte(); // Redundant
|
|
int reserved = bytes.readUnsignedByte(); // Reserved
|
|
|
|
ConstantInterfaceMethodref c=(ConstantInterfaceMethodref)constant_pool.getConstant(m_index, CONSTANT_InterfaceMethodref);
|
|
|
|
class_index = c.getClassIndex();
|
|
str = constant_pool.constantToString(c);
|
|
index = c.getNameAndTypeIndex();
|
|
}
|
|
else {
|
|
ConstantMethodref c = (ConstantMethodref)constant_pool.getConstant(m_index, CONSTANT_Methodref);
|
|
class_index = c.getClassIndex();
|
|
|
|
str = constant_pool.constantToString(c);
|
|
index = c.getNameAndTypeIndex();
|
|
}
|
|
|
|
name = Class2HTML.referenceClass(class_index);
|
|
str = Class2HTML.toHTML(constant_pool.constantToString(constant_pool.getConstant(index, CONSTANT_NameAndType)));
|
|
|
|
// Get signature, i.e., types
|
|
ConstantNameAndType c2 = (ConstantNameAndType)constant_pool.
|
|
getConstant(index, CONSTANT_NameAndType);
|
|
signature = constant_pool.constantToString(c2.getSignatureIndex(),
|
|
CONSTANT_Utf8);
|
|
String[] args = Utility.methodSignatureArgumentTypes(signature, false);
|
|
String type = Utility.methodSignatureReturnType(signature, false);
|
|
|
|
buf.append(name + ".<A HREF=\"" + class_name + "_cp.html#cp" + m_index +
|
|
"\" TARGET=ConstantPool>" + str + "</A>" + "(");
|
|
|
|
// List arguments
|
|
for(int i=0; i < args.length; i++) {
|
|
buf.append(Class2HTML.referenceType(args[i]));
|
|
|
|
if(i < args.length - 1)
|
|
buf.append(", ");
|
|
}
|
|
// Attach return type
|
|
buf.append("):" + Class2HTML.referenceType(type));
|
|
|
|
break;
|
|
|
|
/* Operands are references to items in constant pool
|
|
*/
|
|
case LDC_W: case LDC2_W:
|
|
index = bytes.readShort();
|
|
|
|
buf.append("<A HREF=\"" + class_name + "_cp.html#cp" + index +
|
|
"\" TARGET=\"ConstantPool\">" +
|
|
Class2HTML.toHTML(constant_pool.constantToString(index,
|
|
constant_pool.
|
|
getConstant(index).getTag()))+
|
|
"</a>");
|
|
break;
|
|
|
|
case LDC:
|
|
index = bytes.readUnsignedByte();
|
|
buf.append("<A HREF=\"" + class_name + "_cp.html#cp" + index +
|
|
"\" TARGET=\"ConstantPool\">" +
|
|
Class2HTML.toHTML(constant_pool.constantToString(index,
|
|
constant_pool.
|
|
getConstant(index).getTag()))+
|
|
"</a>");
|
|
break;
|
|
|
|
/* Array of references.
|
|
*/
|
|
case ANEWARRAY:
|
|
index = bytes.readShort();
|
|
|
|
buf.append(constant_html.referenceConstant(index));
|
|
break;
|
|
|
|
/* Multidimensional array of references.
|
|
*/
|
|
case MULTIANEWARRAY:
|
|
index = bytes.readShort();
|
|
int dimensions = bytes.readByte();
|
|
buf.append(constant_html.referenceConstant(index) + ":" + dimensions + "-dimensional");
|
|
break;
|
|
|
|
/* Increment local variable.
|
|
*/
|
|
case IINC:
|
|
if(wide) {
|
|
vindex = bytes.readShort();
|
|
constant = bytes.readShort();
|
|
wide = false;
|
|
}
|
|
else {
|
|
vindex = bytes.readUnsignedByte();
|
|
constant = bytes.readByte();
|
|
}
|
|
buf.append("%" + vindex + " " + constant);
|
|
break;
|
|
|
|
default:
|
|
if(NO_OF_OPERANDS[opcode] > 0) {
|
|
for(int i=0; i < TYPE_OF_OPERANDS[opcode].length; i++) {
|
|
switch(TYPE_OF_OPERANDS[opcode][i]) {
|
|
case T_BYTE:
|
|
buf.append(bytes.readUnsignedByte());
|
|
break;
|
|
|
|
case T_SHORT: // Either branch or index
|
|
buf.append(bytes.readShort());
|
|
break;
|
|
|
|
case T_INT:
|
|
buf.append(bytes.readInt());
|
|
break;
|
|
|
|
default: // Never reached
|
|
System.err.println("Unreachable default case reached!");
|
|
System.exit(-1);
|
|
}
|
|
buf.append(" ");
|
|
}
|
|
}
|
|
}
|
|
|
|
buf.append("</TD>");
|
|
return buf.toString();
|
|
}
|
|
|
|
/**
|
|
* Find all target addresses in code, so that they can be marked
|
|
* with <A NAME = ...>. Target addresses are kept in an BitSet object.
|
|
*/
|
|
private final void findGotos(ByteSequence bytes, Method method, Code code)
|
|
throws IOException
|
|
{
|
|
int index;
|
|
goto_set = new BitSet(bytes.available());
|
|
int opcode;
|
|
|
|
/* First get Code attribute from method and the exceptions handled
|
|
* (try .. catch) in this method. We only need the line number here.
|
|
*/
|
|
|
|
if(code != null) {
|
|
CodeException[] ce = code.getExceptionTable();
|
|
int len = ce.length;
|
|
|
|
for(int i=0; i < len; i++) {
|
|
goto_set.set(ce[i].getStartPC());
|
|
goto_set.set(ce[i].getEndPC());
|
|
goto_set.set(ce[i].getHandlerPC());
|
|
}
|
|
|
|
// Look for local variables and their range
|
|
Attribute[] attributes = code.getAttributes();
|
|
for(int i=0; i < attributes.length; i++) {
|
|
if(attributes[i].getTag() == ATTR_LOCAL_VARIABLE_TABLE) {
|
|
LocalVariable[] vars = ((LocalVariableTable)attributes[i]).getLocalVariableTable();
|
|
|
|
for(int j=0; j < vars.length; j++) {
|
|
int start = vars[j].getStartPC();
|
|
int end = (int)(start + vars[j].getLength());
|
|
goto_set.set(start);
|
|
goto_set.set(end);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Get target addresses from GOTO, JSR, TABLESWITCH, etc.
|
|
for(int i=0; bytes.available() > 0; i++) {
|
|
opcode = bytes.readUnsignedByte();
|
|
//System.out.println(OPCODE_NAMES[opcode]);
|
|
switch(opcode) {
|
|
case TABLESWITCH: case LOOKUPSWITCH:
|
|
//bytes.readByte(); // Skip already read byte
|
|
|
|
int remainder = bytes.getIndex() % 4;
|
|
int no_pad_bytes = (remainder == 0)? 0 : 4 - remainder;
|
|
int default_offset, offset;
|
|
|
|
for(int j=0; j < no_pad_bytes; j++)
|
|
bytes.readByte();
|
|
|
|
// Both cases have a field default_offset in common
|
|
default_offset = bytes.readInt();
|
|
|
|
if(opcode == TABLESWITCH) {
|
|
int low = bytes.readInt();
|
|
int high = bytes.readInt();
|
|
|
|
offset = bytes.getIndex() - 12 - no_pad_bytes - 1;
|
|
default_offset += offset;
|
|
goto_set.set(default_offset);
|
|
|
|
for(int j=0; j < (high - low + 1); j++) {
|
|
index = offset + bytes.readInt();
|
|
goto_set.set(index);
|
|
}
|
|
}
|
|
else { // LOOKUPSWITCH
|
|
int npairs = bytes.readInt();
|
|
|
|
offset = bytes.getIndex() - 8 - no_pad_bytes - 1;
|
|
default_offset += offset;
|
|
goto_set.set(default_offset);
|
|
|
|
for(int j=0; j < npairs; j++) {
|
|
int match = bytes.readInt();
|
|
|
|
index = offset + bytes.readInt();
|
|
goto_set.set(index);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GOTO: case IFEQ: case IFGE: case IFGT:
|
|
case IFLE: case IFLT:
|
|
case IFNE: case IFNONNULL: case IFNULL: case IF_ACMPEQ:
|
|
case IF_ACMPNE: case IF_ICMPEQ: case IF_ICMPGE: case IF_ICMPGT:
|
|
case IF_ICMPLE: case IF_ICMPLT: case IF_ICMPNE: case JSR:
|
|
//bytes.readByte(); // Skip already read byte
|
|
index = bytes.getIndex() + bytes.readShort() - 1;
|
|
|
|
goto_set.set(index);
|
|
break;
|
|
|
|
case GOTO_W: case JSR_W:
|
|
//bytes.readByte(); // Skip already read byte
|
|
index = bytes.getIndex() + bytes.readInt() - 1;
|
|
goto_set.set(index);
|
|
break;
|
|
|
|
default:
|
|
bytes.unreadByte();
|
|
codeToHTML(bytes, 0); // Ignore output
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Write a single method with the byte code associated with it.
|
|
*/
|
|
private void writeMethod(Method method, int method_number)
|
|
throws IOException
|
|
{
|
|
// Get raw signature
|
|
String signature = method.getSignature();
|
|
// Get array of strings containing the argument types
|
|
String[] args = Utility.methodSignatureArgumentTypes(signature, false);
|
|
// Get return type string
|
|
String type = Utility.methodSignatureReturnType(signature, false);
|
|
// Get method name
|
|
String name = method.getName();
|
|
String html_name = Class2HTML.toHTML(name);
|
|
// Get method's access flags
|
|
String access = Utility.accessToString(method.getAccessFlags());
|
|
access = Utility.replace(access, " ", " ");
|
|
// Get the method's attributes, the Code Attribute in particular
|
|
Attribute[] attributes= method.getAttributes();
|
|
|
|
file.print("<P><B><FONT COLOR=\"#FF0000\">" + access + "</FONT> " +
|
|
"<A NAME=method" + method_number + ">" + Class2HTML.referenceType(type) +
|
|
"</A> <A HREF=\"" + class_name + "_methods.html#method" + method_number +
|
|
"\" TARGET=Methods>" + html_name + "</A>(");
|
|
|
|
for(int i=0; i < args.length; i++) {
|
|
file.print(Class2HTML.referenceType(args[i]));
|
|
if(i < args.length - 1)
|
|
file.print(", ");
|
|
}
|
|
|
|
file.println(")</B></P>");
|
|
|
|
Code c=null;
|
|
byte[] code=null;
|
|
|
|
if(attributes.length > 0) {
|
|
file.print("<H4>Attributes</H4><UL>\n");
|
|
for(int i=0; i < attributes.length; i++) {
|
|
byte tag = attributes[i].getTag();
|
|
|
|
if(tag != ATTR_UNKNOWN)
|
|
file.print("<LI><A HREF=\"" + class_name + "_attributes.html#method" + method_number + "@" + i +
|
|
"\" TARGET=Attributes>" + ATTRIBUTE_NAMES[tag] + "</A></LI>\n");
|
|
else
|
|
file.print("<LI>" + attributes[i] + "</LI>");
|
|
|
|
if(tag == ATTR_CODE) {
|
|
c = (Code)attributes[i];
|
|
Attribute[] attributes2 = c.getAttributes();
|
|
code = c.getCode();
|
|
|
|
file.print("<UL>");
|
|
for(int j=0; j < attributes2.length; j++) {
|
|
tag = attributes2[j].getTag();
|
|
file.print("<LI><A HREF=\"" + class_name + "_attributes.html#" +
|
|
"method" + method_number + "@" + i + "@" + j + "\" TARGET=Attributes>" +
|
|
ATTRIBUTE_NAMES[tag] + "</A></LI>\n");
|
|
|
|
}
|
|
file.print("</UL>");
|
|
}
|
|
}
|
|
file.println("</UL>");
|
|
}
|
|
|
|
if(code != null) { // No code, an abstract method, e.g.
|
|
//System.out.println(name + "\n" + Utility.codeToString(code, constant_pool, 0, -1));
|
|
|
|
// Print the byte code
|
|
ByteSequence stream = new ByteSequence(code);
|
|
stream.mark(stream.available());
|
|
findGotos(stream, method, c);
|
|
stream.reset();
|
|
|
|
file.println("<TABLE BORDER=0><TR><TH ALIGN=LEFT>Byte<BR>offset</TH>" +
|
|
"<TH ALIGN=LEFT>Instruction</TH><TH ALIGN=LEFT>Argument</TH>");
|
|
|
|
for(int i=0; stream.available() > 0; i++) {
|
|
int offset = stream.getIndex();
|
|
String str = codeToHTML(stream, method_number);
|
|
String anchor = "";
|
|
|
|
/* Set an anchor mark if this line is targetted by a goto, jsr, etc.
|
|
* Defining an anchor for every line is very inefficient!
|
|
*/
|
|
if(goto_set.get(offset))
|
|
anchor = "<A NAME=code" + method_number + "@" + offset + "></A>";
|
|
|
|
String anchor2;
|
|
if(stream.getIndex() == code.length) // last loop
|
|
anchor2 = "<A NAME=code" + method_number + "@" + code.length + ">" + offset + "</A>";
|
|
else
|
|
anchor2 = "" + offset;
|
|
|
|
file.println("<TR VALIGN=TOP><TD>" + anchor2 + "</TD><TD>" + anchor + str + "</TR>");
|
|
}
|
|
|
|
// Mark last line, may be targetted from Attributes window
|
|
file.println("<TR><TD> </A></TD></TR>");
|
|
file.println("</TABLE>");
|
|
}
|
|
|
|
}
|
|
}
|