arrayvec/src/errors.rs at pr_arraystring_default · tbu-/arrayvec · GitHub

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use std::fmt;

#[cfg(feature="std")]

use std::any::Any;

#[cfg(feature="std")]

use std::error::Error;

/// Error value indicating insufficient capacity

#[derive(Clone, Copy, Eq, Ord, PartialEq, PartialOrd)]

pub struct CapacityError<T = ()> {

element: T,

}

pub trait PubCrateNew<T> {

fn new(elt: T) -> Self;

}

impl<T> PubCrateNew<T> for CapacityError<T> {

fn new(element: T) -> CapacityError<T> {

CapacityError {

element: element,

}

impl<T> CapacityError<T> {

/// Extract the overflowing element

pub fn element(self) -> T {

self.element

}

/// Convert into a `CapacityError` that does not carry an element.

pub fn simplify(self) -> CapacityError {

CapacityError { element: () }

}

const CAPERROR: &'static str = "insufficient capacity";

#[cfg(feature="std")]

/// Requires `features="std"`.

impl<T: Any> Error for CapacityError<T> {

fn description(&self) -> &str {

CAPERROR

}

impl<T> fmt::Display for CapacityError<T> {

fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

write!(f, "{}", CAPERROR)

}

impl<T> fmt::Debug for CapacityError<T> {

fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

write!(f, "{}: {}", "CapacityError", CAPERROR)

}

arrayvec/src/errors.rs at pr_arraystring_default · tbu-/arrayvec · GitHub

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