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.