Enum ErrorCause 

#[non_exhaustive]
pub enum ErrorCause {
    Expansion(ErrorCause),
    NulByte(NulError),
    FdNotOverwritten(Fd, Errno),
    ReservedFd(Fd),
    OpenFile(CString, Errno),
    MalformedFd(String, ParseIntError),
    UnreadableFd(Fd),
    UnwritableFd(Fd),
    TemporaryFileUnavailable(Errno),
    UnsupportedPipeRedirection,
    UnsupportedHereString,
}

Types of errors that may occur in the redirection.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Expansion(ErrorCause)

Expansion error.

NulByte(NulError)

Pathname containing a nul byte.

FdNotOverwritten(Fd, Errno)

The target file descriptor could not be modified for the redirection.

ReservedFd(Fd)

Use of an FD reserved by the shell

This error occurs when a redirection tries to modify an existing FD with the CLOEXEC flag set. See the module documentation for details.

OpenFile(CString, Errno)

Error while opening a file.

The CString is the pathname of the file that could not be opened.

MalformedFd(String, ParseIntError)

Operand of <& or >& that cannot be parsed as an integer.

UnreadableFd(Fd)

<& applied to an unreadable file descriptor

UnwritableFd(Fd)

>& applied to an unwritable file descriptor

TemporaryFileUnavailable(Errno)

Error preparing a temporary file to save here-document content

UnsupportedPipeRedirection

Pipe redirection is used, which is not yet implemented.

UnsupportedHereString

Here-string redirection is used, which is not yet implemented.

Implementations

impl ErrorCause

pub fn message(&self) -> &str

Returns an error message describing the error.

pub fn label(&self) -> Cow<'_, str>

Returns a label for annotating the error location.

Trait Implementations

impl Clone for ErrorCause

fn clone(&self) -> ErrorCause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorCause

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

Formats the value using the given formatter.

impl Display for ErrorCause

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

Formats the value using the given formatter.

impl Eq for ErrorCause

impl Error for ErrorCause

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 From<ErrorCause> for ErrorCause

fn from(source: ErrorCause) -> Self

Converts to this type from the input type.

impl From<NulError> for ErrorCause

fn from(source: NulError) -> Self

Converts to this type from the input type.

impl PartialEq for ErrorCause

fn eq(&self, other: &ErrorCause) -> 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 StructuralPartialEq for ErrorCause