Struct Throw 

pub struct Throw<E>(pub E);

A wrapper type for throwing lua errors from a rust callback’s result.

Example

use tlua::{Function, Lua, Throw};

fn may_fail() -> Result<String, String> {
    Err("failed".into())
}

let lua = Lua::new();
lua.set("callback", Function::new(|| -> Result<String, Throw<String>> {
    let foo = may_fail()?;
    Ok(format!("bar{}", foo))
}));
assert!(lua.exec("callback()").is_err())

Tuple Fields

0: E

Trait Implementations

impl<E: Clone> Clone for Throw<E>

fn clone(&self) -> Throw<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Debug> Debug for Throw<E>

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

Formats the value using the given formatter.

impl<E> From<E> for Throw<E>

fn from(err: E) -> Self

Converts to this type from the input type.

impl<E: Hash> Hash for Throw<E>

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<E: Ord> Ord for Throw<E>

fn cmp(&self, other: &Throw<E>) -> 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<E: PartialEq> PartialEq for Throw<E>

fn eq(&self, other: &Throw<E>) -> 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<E: PartialOrd> PartialOrd for Throw<E>

fn partial_cmp(&self, other: &Throw<E>) -> 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<E: Copy> Copy for Throw<E>

impl<E: Eq> Eq for Throw<E>

impl<E> StructuralPartialEq for Throw<E>