Make an AOT

[Larsouille25]

I'm not very happy with the current, project, I realize that Mona is more a Ahead Of Time compiled programming language than a Just In Time compiled one. So here is the steps to modify Mona to be a AOT compiled one :

• [x] Remove all things related to JIT, so the REPL, in src/driver.rs.

• [x] Move the src/main.rs in src/bin/main.rs because later, subcommands will have there own module, in the binary.

• [x] #28

  • [x] mona_fe will be the lexer, parser, token.
  • [x] mona_common will be all common things like errors.
  • [x] mona_codegen will be a crate that transform an AST to "LLVM IR".
  • [x] mona_build mona_compiler will be the thing that transform the "LLVM IR" to object files
  • [x] mona will be the binary, the thing that use all of the other ones to make a project. later on the Garbage Collector will be in mona_mem or mona_gc

• [x] Make a CI for mona_fe

  • [x] and mona_common

• [x] Adding subcommand bobj that transform a .mn to an object file.

  • [x] With parameters, input file and a flag that take where the result goes.

• [x] #29 -> This is for 0.2.0

[Larsouille25]

When, this issue is closed and the branch 27-aot merged. Re-enable the CI for mona_fe and mona_common.

[Larsouille25]

That works ! I'm not able to use the output in an example with c++, but with objdump, we can dissassemble output.o and we found ->

output.o:     file format elf64-x86-64

Disassembly of section .text:

0000000000000000 <foo>:
   0:   b8 7b 00 00 00          mov    $0x7b,%eax
   5:   c3                      ret

So the function foo return 0x7b so 123

[Larsouille25]

The error is ->

main.cpp:12:27: error: no matching function for call to 'foo'
    std::cout << "foo" << foo(3.0, 4.0) << std::endl;
                          ^~~
main.cpp:8:9: note: candidate function not viable: requires 0 arguments, but 2 were provided
    int foo();
        ^
1 error generated.

I think it could be the mangling of function name

[Larsouille25]

This source code

func main()
    1

After compiling and linking with gcc output.o and execute a.out that works, no error, nothing but it's already that