luaur-vm 0.1.4

The Luau register virtual machine and standard library (Rust).
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

#[macro_export]
#[allow(non_snake_case)]
macro_rules! luai_str2num {
    ($s:expr, $p:expr) => {
        unsafe { crate::macros::luai_str_2_num::strtod($s, $p) }
    };
}

// `strtod` resolves to libc on native, wasi-libc on wasm32-wasip1, and a
// `#[no_mangle]` Rust shim (luaur-common's `strtod_shim`) on wasm32-unknown-
// unknown, which ships no libc. The wasm build previously STUBBED this to
// `{ 0.0 }` and never wrote `endptr`, so `luaO_str2d` dereferenced a null
// `endptr` — `tonumber("1.5")` (and every runtime string→number) crashed /
// returned 0.0 on EVERY wasm build, including the web playground. Native was
// never affected (real libc).
extern "C" {
    pub fn strtod(s: *const core::ffi::c_char, endptr: *mut *mut core::ffi::c_char) -> f64;
}

pub use luai_str2num;