// SPDX-License-Identifier: GPL-2.0 //! Errors for the [`Vec`] type. use core::fmt::{self, Debug, Formatter};use kernel::prelude::*; /// Error type for [`Vec::push_within_capacity`].pub struct PushError<T>(pub T); impl<T> Debug for PushError<T> {    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {        write!(f, "Not enough capacity")    }} impl<T> From<PushError<T>> for Error {    fn from(_: PushError<T>) -> Error {        // Returning ENOMEM isn't appropriate because the system is not out of memory. The vector        // is just full and we are refusing to resize it.        EINVAL    }} /// Error type for [`Vec::remove`].pub struct RemoveError; impl Debug for RemoveError {    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {        write!(f, "Index out of bounds")    }} impl From<RemoveError> for Error {    fn from(_: RemoveError) -> Error {        EINVAL    }} /// Error type for [`Vec::insert_within_capacity`].pub enum InsertError<T> {    /// The value could not be inserted because the index is out of bounds.    IndexOutOfBounds(T),    /// The value could not be inserted because the vector is out of capacity.    OutOfCapacity(T),} impl<T> Debug for InsertError<T> {    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {        match self {            InsertError::IndexOutOfBounds(_) => write!(f, "Index out of bounds"),            InsertError::OutOfCapacity(_) => write!(f, "Not enough capacity"),        }    }} impl<T> From<InsertError<T>> for Error {    fn from(_: InsertError<T>) -> Error {        EINVAL    }}