public static ClassFile FromMemory(IntPtr ptr, int offset)
{
int initialOffset = offset;
uint magic = ConstantPoolEntry.ByteSwap((uint)Marshal.ReadInt32(ptr, offset));
offset += sizeof(uint);
ClassFile classFile = new ClassFile();
classFile._minorVersion = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
classFile._majorVersion = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset + 2));
offset += 2 * sizeof(ushort);
ushort constantPoolCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += 2;
IntPtr constantPoolPtr = ptr + offset;
classFile._constantPool = new ConstantPoolEntry[constantPoolCount];
for (int i = 0; i < constantPoolCount - 1; i++)
{
classFile._constantPool[i] = ConstantPoolEntry.FromMemory(ref constantPoolPtr);
switch (classFile._constantPool[i].Type)
{
case ConstantType.Double:
case ConstantType.Long:
// these entries take 2 slots
classFile._constantPool[i + 1] = ConstantPoolEntry.Reserved;
i++;
break;
default:
break;
}
}
offset = (int)(constantPoolPtr.ToInt64() - (ptr + initialOffset).ToInt64());
classFile._accessFlags = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._thisClass = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._superClass = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
ushort interfacesCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._interfaces = new ushort[interfacesCount];
for (int i = 0; i < interfacesCount; i++)
{
classFile._interfaces[i] = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
}
ushort fieldsCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._fields = new FieldInfo[fieldsCount];
for (int i = 0; i < fieldsCount; i++)
{
classFile._fields[i] = FieldInfo.FromMemory(classFile._constantPool, ptr, offset);
offset += classFile._fields[i].SerializedSize;
}
ushort methodsCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._methods = new MethodInfo[methodsCount];
for (int i = 0; i < methodsCount; i++)
{
classFile._methods[i] = MethodInfo.FromMemory(classFile._constantPool, ptr, offset);
offset += classFile._methods[i].SerializedSize;
}
ushort attributesCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._attributes = new AttributeInfo[attributesCount];
for (int i = 0; i < attributesCount; i++)
{
classFile._attributes[i] = AttributeInfo.FromMemory(classFile._constantPool, ptr, offset);
offset += classFile._attributes[i].SerializedSize;
}
return classFile;
}
public static ClassFile FromMemory(IntPtr ptr, int offset)
{
int initialOffset = offset;
uint magic = ConstantPoolEntry.ByteSwap((uint)Marshal.ReadInt32(ptr, offset));
offset += sizeof(uint);
ClassFile classFile = new ClassFile();
classFile._minorVersion = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
classFile._majorVersion = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset + 2));
offset += 2 * sizeof(ushort);
ushort constantPoolCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += 2;
IntPtr constantPoolPtr = ptr + offset;
classFile._constantPool = new ConstantPoolEntry[constantPoolCount];
for (int i = 0; i < constantPoolCount - 1; i++)
{
classFile._constantPool[i] = ConstantPoolEntry.FromMemory(ref constantPoolPtr);
switch (classFile._constantPool[i].Type)
{
case ConstantType.Double:
case ConstantType.Long:
// these entries take 2 slots
classFile._constantPool[i + 1] = ConstantPoolEntry.Reserved;
i++;
break;
default:
break;
}
}
offset = (int)(constantPoolPtr.ToInt64() - (ptr + initialOffset).ToInt64());
classFile._accessFlags = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._thisClass = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._superClass = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
ushort interfacesCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._interfaces = new ushort[interfacesCount];
for (int i = 0; i < interfacesCount; i++)
{
classFile._interfaces[i] = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
}
ushort fieldsCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._fields = new FieldInfo[fieldsCount];
for (int i = 0; i < fieldsCount; i++)
{
classFile._fields[i] = FieldInfo.FromMemory(classFile._constantPool, ptr, offset);
offset += classFile._fields[i].SerializedSize;
}
ushort methodsCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._methods = new MethodInfo[methodsCount];
for (int i = 0; i < methodsCount; i++)
{
classFile._methods[i] = MethodInfo.FromMemory(classFile._constantPool, ptr, offset);
offset += classFile._methods[i].SerializedSize;
}
ushort attributesCount = ConstantPoolEntry.ByteSwap((ushort)Marshal.ReadInt16(ptr, offset));
offset += sizeof(ushort);
classFile._attributes = new AttributeInfo[attributesCount];
for (int i = 0; i < attributesCount; i++)
{
classFile._attributes[i] = AttributeInfo.FromMemory(classFile._constantPool, ptr, offset);
offset += classFile._attributes[i].SerializedSize;
}
return(classFile);
}
