Trait UserDataFields 

pub trait UserDataFields<T> {
    // Required methods
    fn add_field<V>(&mut self, name: impl Into<String>, value: V)
       where V: IntoLua + Clone + MaybeSend + 'static;
    fn add_field_method_get<M, R>(&mut self, name: impl Into<String>, method: M)
       where M: Fn(&Lua, &T) -> Result<R> + MaybeSend + 'static,
             R: IntoLua;
    fn add_field_method_set<M, A>(&mut self, name: impl Into<String>, method: M)
       where M: Fn(&Lua, &mut T, A) -> Result<()> + MaybeSend + 'static,
             A: FromLua;
    fn add_field_function_get<F, R>(
        &mut self,
        name: impl Into<String>,
        function: F,
    )
       where F: Fn(&Lua, AnyUserData) -> Result<R> + MaybeSend + 'static,
             R: IntoLua;
    fn add_field_function_set<F, A>(
        &mut self,
        name: impl Into<String>,
        function: F,
    )
       where F: Fn(&Lua, AnyUserData, A) -> Result<()> + MaybeSend + 'static,
             A: FromLua;
}

Registrar passed to UserData::add_fields.

Mirrors mlua::UserDataFields. Field getters/setters are dispatched by the userdata’s __index/__newindex.

Required Methods

fn add_field<V>(&mut self, name: impl Into<String>, value: V)

where V: IntoLua + Clone + MaybeSend + 'static,

Register a constant field value (read-only).

fn add_field_method_get<M, R>(&mut self, name: impl Into<String>, method: M)

where M: Fn(&Lua, &T) -> Result<R> + MaybeSend + 'static, R: IntoLua,

Register a field whose getter receives &T.

fn add_field_method_set<M, A>(&mut self, name: impl Into<String>, method: M)

where M: Fn(&Lua, &mut T, A) -> Result<()> + MaybeSend + 'static, A: FromLua,

Register a field whose setter receives &mut T and the assigned value.

fn add_field_function_get<F, R>(&mut self, name: impl Into<String>, function: F)

where F: Fn(&Lua, AnyUserData) -> Result<R> + MaybeSend + 'static, R: IntoLua,

Register a field whose getter receives the AnyUserData handle.

fn add_field_function_set<F, A>(&mut self, name: impl Into<String>, function: F)

where F: Fn(&Lua, AnyUserData, A) -> Result<()> + MaybeSend + 'static, A: FromLua,

Register a field whose setter receives the AnyUserData handle and the assigned value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors