35 lines
870 B
Rust
35 lines
870 B
Rust
use mlua::prelude::*;
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fn sum(_: &Lua, (a, b): (i64, i64)) -> LuaResult<i64> {
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Ok(a + b)
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}
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fn used_memory(lua: &Lua, _: ()) -> LuaResult<usize> {
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Ok(lua.used_memory())
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}
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fn check_userdata(_: &Lua, ud: MyUserData) -> LuaResult<i32> {
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Ok(ud.0)
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}
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#[mlua::lua_module]
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fn rust_module(lua: &Lua) -> LuaResult<LuaTable> {
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let exports = lua.create_table()?;
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exports.set("sum", lua.create_function(sum)?)?;
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exports.set("used_memory", lua.create_function(used_memory)?)?;
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exports.set("check_userdata", lua.create_function(check_userdata)?)?;
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Ok(exports)
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}
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#[derive(Clone, Copy)]
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struct MyUserData(i32);
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impl LuaUserData for MyUserData {}
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#[mlua::lua_module]
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fn rust_module_second(lua: &Lua) -> LuaResult<LuaTable> {
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let exports = lua.create_table()?;
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exports.set("userdata", lua.create_userdata(MyUserData(123))?)?;
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Ok(exports)
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}
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