luaur-code-gen 0.1.3

Native (A64/X64) code generation for Luau (Rust).
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

use core::ffi::c_void;

#[repr(C)]
pub struct Proto {
    pub sizelocvars: i32,
    pub locvars: *const LocVar,
}

#[repr(C)]
pub struct LocVar {
    pub reg: i32,
    pub startpc: i32,
    pub endpc: i32,
}

pub unsafe fn try_find_local(proto: *const Proto, reg: i32, pcpos: i32) -> *const LocVar {
    let proto = &*proto;

    for i in 0..proto.sizelocvars {
        let local = &*proto.locvars.add(i as usize);

        if reg == local.reg && pcpos >= local.startpc && pcpos < local.endpc {
            return local as *const LocVar;
        }
    }

    core::ptr::null::<LocVar>()
}