Struct core_foundation::error::CFError

pub struct CFError(_);

An error value.

Implementations

impl CFError

pub fn domain(&self) -> CFString

Returns a string identifying the domain with which this error is associated.

pub fn code(&self) -> CFIndex

Returns the code identifying this type of error.

pub fn description(&self) -> CFString

Returns a human-presentable description of the error.

Trait Implementations

impl Clone for CFError

fn clone(&self) -> CFError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ConcreteCFType for CFError

impl Debug for CFError

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

Formats the value using the given formatter.

impl Display for CFError

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

Formats the value using the given formatter.

impl Drop for CFError

fn drop(&mut self)

Executes the destructor for this type.

impl Eq for CFError

impl Error for CFError

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl PartialEq<CFError> for CFError

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl TCFType for CFError

type Ref = CFErrorRef

The reference type wrapped inside this type.

fn as_concrete_TypeRef(&self) -> CFErrorRef

Returns the object as its concrete TypeRef.

unsafe fn wrap_under_get_rule(reference: CFErrorRef) -> Self

Returns an instance of the object, wrapping the underlying CFTypeRef subclass. Use this when following Core Foundation's "Get Rule". The reference count is bumped.

fn as_CFTypeRef(&self) -> CFTypeRef

Returns the object as a raw CFTypeRef. The reference count is not adjusted.

unsafe fn wrap_under_create_rule(reference: CFErrorRef) -> Self

Returns an instance of the object, wrapping the underlying CFTypeRef subclass. Use this when following Core Foundation's "Create Rule". The reference count is not bumped.

fn type_id() -> CFTypeID

Returns the type ID for this class.

fn as_CFType(&self) -> CFType

Returns the object as a wrapped CFType. The reference count is incremented by one.

fn into_CFType(self) -> CFType where
    Self: Sized, 

Returns the object as a wrapped CFType. Consumes self and avoids changing the reference count.

fn retain_count(&self) -> CFIndex

Returns the reference count of the object. It is unwise to do anything other than test whether the return value of this method is greater than zero.

fn type_of(&self) -> CFTypeID

Returns the type ID of this object.

fn show(&self)

Writes a debugging version of this object on standard error.

fn instance_of<OtherCFType: TCFType>(&self) -> bool

Returns true if this value is an instance of another type.

impl<'a> ToVoid<CFError> for &'a CFError

fn to_void(&self) -> *const c_void

impl ToVoid<CFError> for CFError

fn to_void(&self) -> *const c_void

impl ToVoid<CFError> for CFErrorRef

fn to_void(&self) -> *const c_void