[luajit] mlua does not recognize LL/ULL numbers as integers
#580
Comments
LL/ULL numbers as integersLL/ULL numbers as integers
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This is because objects like LuaJIT through their C API (e.g. Even LuaJIT standard stdlib methods cannot work with this type, see: So this is rather luajit issue. There is little that can be done here. |
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I see, thanks for the information! Is there a way how the type of fields.add_field_method_set("foo", |_, this, value: u64| {
this.foo = value;
Ok(())
})so that it accepts the |
So this is what I implemented now: #[repr(transparent)]
#[derive(Debug, Clone, Copy)]
struct CInt<T>(T);
macro_rules! impl_cint {
($(($ty:ty, $suffix:literal)),*) => {
$(
impl FromLua for CInt<$ty> {
fn from_lua(value: mlua::Value, lua: &mlua::Lua) -> mlua::Result<Self> {
if let mlua::Value::Other(_)= value {
let str = value.to_string()?;
if let Some(int_str) = str.strip_suffix($suffix) {
if let Ok(int) = int_str.parse::<$ty>() {
return Ok(CInt(int));
}
}
}
Ok(CInt(<$ty>::from_lua(value, lua)?))
}
}
)*
};
}
impl_cint!((u64, "ULL"), (i64, "LL"));And the fields.add_field_method_set("foo", |_, this, value: CInt<u64>| {
this.foo = value.0;
Ok(())
})Closing this issue, as there isn't really anything that can be done in |
In LuaJIT
LuaJIT/LuaJIT#1286
To force integers in luajit, you have to add the suffix
LLorULL. But when doing this and implementing something likethe following error is emitted:
when trying to set
MyStruct.foo = 0ULLin a script run throughmLua.The text was updated successfully, but these errors were encountered: