Struct Error

pub struct Error { /* private fields */ }

Expand description

The error type for filesystem operations.

Specific error codes are available as associated constants of this type.

assert_eq!(Error::IO.code(), -5);
assert_eq!(Error::new(-5), Some(Error::IO));

Implementations§

impl Error

pub const IO: Error

Input / output error occurred.

pub const CORRUPTION: Error

File or filesystem was corrupt.

pub const NO_SUCH_ENTRY: Error

No entry found with that name.

pub const ENTRY_ALREADY_EXISTED: Error

File or directory already exists.

pub const PATH_NOT_DIR: Error

Path name is not a directory.

pub const PATH_IS_DIR: Error

Path specification is to a directory.

pub const DIR_NOT_EMPTY: Error

Directory was not empty.

pub const BAD_FILE_DESCRIPTOR: Error

Bad file descriptor.

pub const FILE_TOO_BIG: Error

File is too big.

pub const INVALID: Error

Incorrect value specified to function.

pub const NO_SPACE: Error

No space left available for operation.

pub const NO_MEMORY: Error

No memory available for completing request.

pub const NO_ATTRIBUTE: Error

No attribute or data available

pub const FILENAME_TOO_LONG: Error

Filename too long

pub const fn new(code: i32) -> Option<Error>

Construct an Error from an error code.

Return values that are greater or equals to zero represent success. In this case, None is returned.

pub const fn code(&self) -> i32

Return the error code of this error.

Trait Implementations§

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Error

Prints a static string as the debug representation.

If unwrap or expect is used on a Result<_, Error>, the Debug implementation is not always optimized out. This leads to a significant increase of the binary size. As a short-term fix, the Debug implementation currently always returns a static string.

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

Formats the value using the given formatter. Read more

impl PartialEq for Error

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

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

1.0.0 · Source§

const 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 Copy for Error

impl StructuralPartialEq for Error

Auto Trait Implementations§

impl Freeze for Error

impl RefUnwindSafe for Error

impl Send for Error

impl Sync for Error

impl Unpin for Error

impl UnwindSafe for Error

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Same for T

type Output = T

Should always be Self

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.