distant_lua/
lib.rs

1use mlua::prelude::*;
2
3/// to_value!<'a, T: Serialize + ?Sized>(lua: &'a Lua, t: &T) -> Result<Value<'a>>
4///
5/// Converts to a Lua value using options specific to this module.
6macro_rules! to_value {
7    ($lua:expr, $x:expr) => {{
8        use mlua::{prelude::*, LuaSerdeExt};
9        let options = LuaSerializeOptions::new()
10            .serialize_none_to_null(false)
11            .serialize_unit_to_null(false);
12        $lua.to_value_with($x, options)
13    }};
14}
15
16mod constants;
17mod log;
18mod runtime;
19mod session;
20mod utils;
21
22#[mlua::lua_module]
23fn distant_lua(lua: &Lua) -> LuaResult<LuaTable> {
24    let exports = lua.create_table()?;
25
26    // Provide a static pending type used when consumer wants to use async functions
27    // directly without wrapping them with a scheduler
28    exports.set("pending", utils::pending(lua)?)?;
29
30    // API modules available for users
31    exports.set("log", log::make_log_tbl(lua)?)?;
32    exports.set("session", session::make_session_tbl(lua)?)?;
33    exports.set("utils", utils::make_utils_tbl(lua)?)?;
34    exports.set("version", make_version_tbl(lua)?)?;
35
36    Ok(exports)
37}
38
39macro_rules! set_nonempty_env {
40    ($tbl:ident, $key:literal, $env_key:literal) => {{
41        let value = env!($env_key);
42        if !value.is_empty() {
43            $tbl.set($key, value)?;
44        }
45    }};
46}
47
48fn make_version_tbl(lua: &Lua) -> LuaResult<LuaTable> {
49    let tbl = lua.create_table()?;
50
51    set_nonempty_env!(tbl, "full", "CARGO_PKG_VERSION");
52    set_nonempty_env!(tbl, "major", "CARGO_PKG_VERSION_MAJOR");
53    set_nonempty_env!(tbl, "minor", "CARGO_PKG_VERSION_MINOR");
54    set_nonempty_env!(tbl, "patch", "CARGO_PKG_VERSION_PATCH");
55    set_nonempty_env!(tbl, "pre", "CARGO_PKG_VERSION_PRE");
56
57    Ok(tbl)
58}
distant_lua/lib.rs

distant_lua/
lib.rs
