Struct Fail

pub struct Fail(pub String);

Fail structure

use kern::{Fail, Result};

fn do_something() -> Result<()> {
    let err = Fail::new("This is an error");
    Fail::from(err)
}

println!("{}", do_something().unwrap_err());

Tuple Fields

0: String

Implementations

impl Fail

pub fn new<E>(err: E) -> Box<Self>

where E: Display,

Create bxoed Fail from any Display

pub fn from<T, E>(err: E) -> Result<T>

where E: Display,

Create Result with boxed Fail from any Display

pub fn std<T, E>(err: E) -> StdResult<T, Self>

where E: Display,

Create StdResult with Fail from any Display

pub fn err_msg(&self) -> &str

Get error message

Trait Implementations

impl Clone for Fail

fn clone(&self) -> Fail

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Fail

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

Formats the value using the given formatter.

impl Display for Fail

Display implementation for Fail

fn fmt(&self, formatter: &mut Formatter<'_>) -> FmtResult

Formats the value using the given formatter.

impl Error for Fail

std::error::Error implementation for Fail

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl Hash for Fail

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 Ord for Fail

fn cmp(&self, other: &Fail) -> 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 Fail

fn eq(&self, other: &Fail) -> 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 Fail

fn partial_cmp(&self, other: &Fail) -> 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 Eq for Fail

impl StructuralPartialEq for Fail