Struct tlua::LuaCodeFromReader

pub struct LuaCodeFromReader<R>(pub R);

Wrapper around a Read object. When pushed, the content will be parsed as Lua code and turned into a function.

Since pushing this value can fail in case of a reading error or a parsing error, you must use the checked_set method instead of set.

Example: returning a Lua function from a Rust function

use std::io::Cursor;

let mut lua = tlua::Lua::new();

lua.set("call_rust", tlua::function0(|| -> tlua::LuaCodeFromReader<Cursor<String>> {
    let lua_code = "return 18;";
    return tlua::LuaCodeFromReader(Cursor::new(lua_code.to_owned()));
}));

let r: i32 = lua.eval("local lua_func = call_rust(); return lua_func();").unwrap();
assert_eq!(r, 18);

Tuple Fields

0: R

Trait Implementations

impl<R: Debug> Debug for LuaCodeFromReader<R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<L, R> PushInto<L> for LuaCodeFromReader<R> where
    L: AsLua,
    R: Read, 

type Err = LuaError

fn push_into_lua(self, lua: L) -> Result<PushGuard<L>, (LuaError, L)>

Push the value into lua by value

fn push_into_no_err(self, lua: L) -> PushGuard<L> where
    Self: Sized,
    <Self as PushInto<L>>::Err: Into<Void>, 

Same as push_into_lua but can only succeed and is only available if Err implements Into<Void>.

impl<L, R> PushOneInto<L> for LuaCodeFromReader<R> where
    L: AsLua,
    R: Read,