Koona
A really simple compiler
Koona is a simple compiler I wrote a few years ago to learn about compiler design. It's over-engineered and poorly written (since I was still quite a noob when I initially wrote it), so forgive code quality in the parsing/lexing/code generation. If I get some free time, I'll clean it up and make it easier to understand.
What it does
At the moment, Koona will compile a simple syntax into valid C code. What's currently supported:
- Variable declaration
- Function declaration (and function calls)
- Return statements
- If statements
- Integers
- Doubles
- Booleans
- Strings
- Garbage collection
- FFI
- Mathematic operations (+, -, *, /)
A valid .kn file:
int x=3
x = x+1
string myString = "this is a string"
// Call an external C function:
call printf("test")
int addVal(int var, int val, bool do_add)
{
if(do_add)
{
return (var + val)
}
}
addVal(x, 2, true)
Use
To compile a .kn file, run: bin/koona compile *file.kn*. A C file will be generated (which you can then edit, or compile).
If you want to compile straight to an executible, you can use the --clang flag to compile the .c file with clang.