Struct hlua::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 = hlua::Lua::new();

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

let r: i32 = lua.execute("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<'lua, L, R> Push<L> for LuaCodeFromReader<R>

where L: AsMutLua<'lua>, R: Read,

type Err = LuaError

Error that can happen when pushing a value.

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

Pushes the value on the top of the stack.

fn push_no_err<E>(self, lua: L) -> PushGuard<L>

where Self: Sized + Push<L, Err = E>, E: Into<Void>,

Same as push_to_lua but can only succeed and is only available if Err is Void.

impl<'lua, L, R> PushOne<L> for LuaCodeFromReader<R>

where L: AsMutLua<'lua>, R: Read,