SquirrelJME/SquirrelJME

# 2018/02/11

## 11:35

What would be useful for me in SquirrelJME and another program I am working on
would be a Java to C compiler. I will need it eventually for SquirrelJME so
that it can self host on systems with no Java compiler but with a C compiler.
Also, I have another project to be written in C but I would rather have it in
Java, but it needs to be a static binary so that would be problematic. I can
simulate the virtual machine in C code. It will not be as elegant but it would
work for the most part. It could just produce lots of code rather than be
clean and optimized. It can pretty much simulate a Java stack for the most
part along with locals in C code. I would just design it to be simple for the
most part.

## 12:19

Well really, what I could do is just expand the byte code into functions and
stack machines with support for brancing. So basically the Java operations are
just reimplemented with descriptors for fields, classes, and other things. So
really I just perform a number of function calls. But really this is just
needed for some things more than others. However I do need to consider garbage
collection and such.

## 18:44

I should definitely setup the input stream and such, so that way resources can
read from them and such rather than having all the bytes loaded at once. The
only problem will be there can be resource leaks in the kernel when the data
requested but never closed by the client.

## 18:47

I think what would be better is a resource manager of sorts.

## 19:11

Okay, I need access to resources in the system. Then also I would need support
for resource domains and such too. So what I then need is just an interface
which gives that. Then for the library manager, I just need one that gives the
system resource. But actually that one is already provided. So what I really
just need are domains from within libraries. Additionally the get resource as
stream methods will need to know this information.

## 19:51

Okay, so I rather have two choices. I could run a sub-process in a kind of
virtualized sub-process or I can just make new VMs which run at native speed.

## 20:19

Okay so actually I was thinking of something. Oh yes the configuration. Having
it in the build system is going to interfere, so I need to export some
variables so the build system's configuration does not interfere with native
ones, since that would be bad. Pristine state would be best. Also, one thing
would be instead that libraries are installed into architecture and os
specific locations, that would also however include trusts too though. Will
have to think about it for the most part, or at least remember the library.

## 23:44

The manifest reading/writing code is going to be very familiar.