Trait FromLua

pub trait FromLua: Sized {
    // Required method
    fn from_lua(state: &mut State, index: Index) -> Option<Self>;
}

Trait for types that can be taken from the Lua stack.

It is important that implementors of this trait ensure that from_lua behaves like one of the lua_to* functions for consistency.

Required Methods

fn from_lua(state: &mut State, index: Index) -> Option<Self>

Converts the value on top of the stack of a Lua state to a value of type Option<Self>.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FromLua for bool

fn from_lua(state: &mut State, index: Index) -> Option<bool>

impl FromLua for String

fn from_lua(state: &mut State, index: Index) -> Option<String>

Implementors

impl FromLua for Function

impl FromLua for Integer

impl FromLua for Number