Improved Lua macro situation
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This commit is contained in:
2024-07-25 00:49:10 +02:00
parent 006320be18
commit 98ab265fed
16 changed files with 61 additions and 76 deletions

View File

@@ -1,19 +1,10 @@
#![feature(let_chains)]
#![feature(iter_intersperse)]
mod lua_device;
mod lua_device_config;
use lua_device::impl_lua_device_macro;
use lua_device_config::impl_lua_device_config_macro;
use syn::{parse_macro_input, DeriveInput};
#[proc_macro_derive(LuaDevice, attributes(config))]
pub fn lua_device_derive(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = parse_macro_input!(input as DeriveInput);
impl_lua_device_macro(&ast).into()
}
#[proc_macro_derive(LuaDeviceConfig, attributes(device_config))]
pub fn lua_device_config_derive(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = parse_macro_input!(input as DeriveInput);

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@@ -1,28 +0,0 @@
use proc_macro2::TokenStream;
use quote::quote;
use syn::DeriveInput;
pub fn impl_lua_device_macro(ast: &DeriveInput) -> TokenStream {
let name = &ast.ident;
let gen = quote! {
impl #name {
pub fn register_with_lua(lua: &mlua::Lua) -> mlua::Result<()> {
lua.globals().set(stringify!(#name), lua.create_proxy::<#name>()?)
}
}
impl mlua::UserData for #name {
fn add_methods<'lua, M: mlua::UserDataMethods<'lua, Self>>(methods: &mut M) {
methods.add_async_function("new", |lua, config: mlua::Value| async {
let config = mlua::FromLua::from_lua(config, lua)?;
// TODO: Using crate:: could cause issues
let device: #name = crate::devices::LuaDeviceCreate::create(config).await.map_err(mlua::ExternalError::into_lua_err)?;
Ok(crate::device_manager::WrappedDevice::new(Box::new(device)))
});
}
}
};
gen
}