Struct Nil 

pub struct Nil;

A helper struct for pushing and reading simple lua nil values.

Reading from lua with return Ok(Nil) if there is a value on the stack and value is of type nil, or if there is no value on the stack (e.g. no arguments passed to lua function).

See also Null.

Trait Implementations

impl Clone for Nil

fn clone(&self) -> Nil

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Nil

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Nil

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Nil

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<L> LuaRead<L> for Nil

where L: AsLua,

fn lua_read_at_position(lua: L, index: NonZeroI32) -> ReadResult<Self, L>

Reads the data from Lua at a given position.

fn lua_read_at_maybe_zero_position(lua: L, index: i32) -> ReadResult<Self, L>

fn n_values_expected() -> i32

fn lua_read(lua: L) -> ReadResult<Self, L>

Reads the data from Lua.

impl Ord for Nil

fn cmp(&self, other: &Nil) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Nil

fn eq(&self, other: &Nil) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Nil

fn partial_cmp(&self, other: &Nil) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<L> Push<L> for Nil

where L: AsLua,

type Err = Void

Error that can happen when pushing a value.

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

Pushes the value on the top of the stack.

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

where <Self as Push<L>>::Err: Into<Void>,

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

impl<L> PushInto<L> for Nil

where L: AsLua,

type Err = Void

fn push_into_lua(self, lua: L) -> Result<PushGuard<L>, (Void, 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 Serialize for Nil

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Nil

impl Eq for Nil

impl<L> PushOne<L> for Nil

where L: AsLua,

impl<L> PushOneInto<L> for Nil

where L: AsLua,

impl StructuralPartialEq for Nil