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Allow pool to be dynamically rebuilt

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Adam
2015-05-09 17:00:30 -04:00
parent 0d21d49d2d
commit 4af719032d
45 changed files with 597 additions and 333 deletions
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58
src/main/java/info/sigterm/deob/ClassFile.java
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@@ -4,6 +4,7 @@ import info.sigterm.deob.attributes.Attributes;
import info.sigterm.deob.pool.Class;
import info.sigterm.deob.pool.NameAndType;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
@@ -11,19 +12,20 @@ import java.util.ArrayList;
public class ClassFile
{
private static final int MAGIC = 0xcafebabe;
private ClassGroup group;
private DataInputStream is;
private ClassFile parent; // super class
private ArrayList<ClassFile> children = new ArrayList<ClassFile>(); // classes which inherit from this
private int magic;
private short minor_version;
private short major_version;
private ConstantPool pool;
private short access_flags;
private int this_class;
private int super_class;
private Class name;
private Class super_class;
private Interfaces interfaces;
private Fields fields;
private Methods methods;
@@ -34,18 +36,18 @@ public class ClassFile
this.group = group;
this.is = is;
magic = is.readInt();
if (magic != 0xcafebabe)
int magic = is.readInt();
if (magic != MAGIC)
throw new IOException("File is not a java class file.");
minor_version = is.readShort();
major_version = is.readShort();
pool = new ConstantPool(this);
pool = new ConstantPool(this, is);
access_flags = is.readShort();
this_class = is.readUnsignedShort();
super_class = is.readUnsignedShort();
name = pool.getClass(is.readUnsignedShort());
super_class = pool.getClass(is.readUnsignedShort());
interfaces = new Interfaces(this);
@@ -58,24 +60,32 @@ public class ClassFile
public void write(DataOutputStream out) throws IOException
{
out.writeInt(0xcafebabe);
out.writeInt(MAGIC);
out.writeShort(minor_version);
out.writeShort(major_version);
/* constant pool will be rebuilt now */
pool.reset();
ByteArrayOutputStream bout = new ByteArrayOutputStream();
DataOutputStream rest = new DataOutputStream(bout);
rest.writeShort(access_flags);
rest.writeShort(pool.make(name));
rest.writeShort(pool.make(super_class));
interfaces.write(rest);
fields.write(rest);
methods.write(rest);
attributes.write(rest);
// Now the pool is created
pool.write(out);
out.writeShort(access_flags);
out.writeShort(this_class);
out.writeShort(super_class);
interfaces.write(out);
fields.write(out);
methods.write(out);
attributes.write(out);
out.write(bout.toByteArray());
}
public ClassGroup getGroup()
@@ -110,14 +120,12 @@ public class ClassFile
public String getName()
{
Class entry = (Class) pool.getEntry(this_class);
return entry.getName();
return name.getName();
}
public ClassFile getParent()
{
Class entry = (Class) pool.getEntry(super_class);
String superName = entry.getName();
String superName = super_class.getName();
ClassFile other = group.findClass(superName);
assert other != this;
return other;