Struct CFError 

pub struct CFError(/* private fields */);

Safe wrapper around a retained Core Foundation CFError reference.

Implementations

impl CFError

pub fn from_raw(ptr: *mut c_void) -> Option<Self>

Wraps a +1 retained CFError pointer and returns None for null.

pub unsafe fn from_raw_retained(ptr: *mut c_void) -> Option<Self>

Retains a +0 borrowed CFError pointer and wraps the resulting +1 reference.

Safety

ptr must be NULL or a valid CFError pointer.

pub const fn as_ptr(&self) -> *mut c_void

Returns the wrapped raw Core Foundation pointer.

pub fn type_id() -> usize

Returns the Core Foundation type ID for CFError.

pub fn into_cf_type(self) -> CFType

Consumes this wrapper and returns the erased CFType.

impl CFError

pub fn new(domain: &CFString, code: i64, description: Option<&str>) -> Self

Create a Core Foundation error object.

pub fn domain(&self) -> CFString

Error domain.

pub fn code(&self) -> i64

Numeric error code.

pub fn description_string(&self) -> Option<CFString>

Localized description if present.

pub fn failure_reason(&self) -> Option<CFString>

Failure reason if present.

Trait Implementations

impl AsCFType for CFError

fn as_ptr(&self) -> *mut c_void

Borrow the underlying Core Foundation object pointer.

fn to_cf_type(&self) -> CFType

Clone this value as an erased CFType.

impl Clone for CFError

fn clone(&self) -> CFError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CFError

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

Formats the value using the given formatter.

impl Display for CFError

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

Formats the value using the given formatter.

impl Error for CFError

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 CFError

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 PartialEq for CFError

fn eq(&self, other: &CFError) -> 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 Eq for CFError

impl StructuralPartialEq for CFError