Struct error_code::ErrorCode

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#[repr(transparent)]
pub struct ErrorCode<C> { /* private fields */ }

Expand description

Describes error code in particular category.

Implementations

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impl ErrorCode<PosixCategory>

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pub fn last() -> Self

Retrieves last error, generated by runtime

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pub const fn unimplemented() -> Self

Creates unimplemented error

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pub const fn is_would_block(self) -> bool

Returns whether underlying error means to try again.

Under POSIX, it means either EWOULDBLOCK or EAGAIN, in some cases it can be the same error code.

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impl ErrorCode<SystemCategory>

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pub fn last() -> Self

Retrieves last error, generated by OS

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pub const fn unimplemented() -> Self

Creates unimplemented error

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pub const fn is_would_block(self) -> bool

Returns whether underlying error means to try again.

Under POSIX, it means either EWOULDBLOCK or EAGAIN, in some cases it can be the same error code. In case of Windows, it is also WSAEWOULDBLOCK

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impl<C> ErrorCode<C>

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pub const fn new(code: i32) -> Self

Creates new error code in provided category.

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pub const fn raw_code(self) -> i32

Access raw integer code

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pub const fn is_zero(self) -> bool

Returns whether error code is zero.

Commonly zero is indication of no error.

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impl<C: Category> ErrorCode<C>

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pub fn message(self) -> Str

Returns textual representation of the error code

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pub fn into_another<O: Category>(self) -> ErrorCode<O> where
C: IntoCategory<O>,

Converts self into error code of another category.

Requires self’s category to implement IntoCategory for destination category.

Trait Implementations

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impl<C> Clone for ErrorCode<C>

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fn clone(&self) -> Self

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<C: Category> Debug for ErrorCode<C>

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

Formats the value using the given formatter. Read more

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impl<C: Category> Display for ErrorCode<C>

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

Formats the value using the given formatter. Read more

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impl<C: Category> Error for ErrorCode<C>

1.30.0 · source

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

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

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

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

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

1.0.0 · source

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

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impl From<Error> for ErrorCode<PosixCategory>

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fn from(err: Error) -> Self

Performs the conversion.

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impl From<Error> for ErrorCode<SystemCategory>

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fn from(err: Error) -> Self

Performs the conversion.

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impl From<ErrorCode<PosixCategory>> for Error

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fn from(err: ErrorCode<PosixCategory>) -> Self

Performs the conversion.

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impl From<ErrorCode<SystemCategory>> for Error

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fn from(err: ErrorCode<SystemCategory>) -> Self

Performs the conversion.

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impl<C> From<i32> for ErrorCode<C>

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fn from(code: i32) -> Self

Performs the conversion.

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impl<C> Hash for ErrorCode<C>

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl<C> Ord for ErrorCode<C>

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more

1.21.0 · source

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values. Read more

1.21.0 · source

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values. Read more

1.50.0 · source

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval. Read more

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impl PartialEq<Error> for ErrorCode<PosixCategory>

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

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

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl PartialEq<Error> for ErrorCode<SystemCategory>

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

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

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl<C> PartialEq<ErrorCode<C>> for ErrorCode<C>

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

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

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl<C> PartialOrd<ErrorCode<C>> for ErrorCode<C>

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fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

1.0.0 · source

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

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impl<C> Unpin for ErrorCode<C>

Auto Trait Implementations

impl<C> RefUnwindSafe for ErrorCode<C> where
C: RefUnwindSafe,

impl<C> UnwindSafe for ErrorCode<C> where
C: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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

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

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

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impl<T> ToString for T where
T: Display + ?Sized,

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pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct error_code::ErrorCode

Implementations

impl ErrorCode<PosixCategory>

pub fn last() -> Self

pub const fn unimplemented() -> Self

pub const fn is_would_block(self) -> bool

impl ErrorCode<SystemCategory>

pub fn last() -> Self

pub const fn unimplemented() -> Self

pub const fn is_would_block(self) -> bool

impl<C> ErrorCode<C>

pub const fn new(code: i32) -> Self

pub const fn raw_code(self) -> i32

pub const fn is_zero(self) -> bool

impl<C: Category> ErrorCode<C>

pub fn message(self) -> Str

pub fn into_another<O: Category>(self) -> ErrorCode<O> where C: IntoCategory<O>,

Trait Implementations

impl<C> Clone for ErrorCode<C>

fn clone(&self) -> Self

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

impl<C: Category> Debug for ErrorCode<C>

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

impl<C: Category> Display for ErrorCode<C>

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

impl<C: Category> Error for ErrorCode<C>

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

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

fn description(&self) -> &str

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

impl From<Error> for ErrorCode<PosixCategory>

fn from(err: Error) -> Self

impl From<Error> for ErrorCode<SystemCategory>

fn from(err: Error) -> Self

impl From<ErrorCode<PosixCategory>> for Error

fn from(err: ErrorCode<PosixCategory>) -> Self

impl From<ErrorCode<SystemCategory>> for Error

fn from(err: ErrorCode<SystemCategory>) -> Self

impl<C> From<i32> for ErrorCode<C>

fn from(code: i32) -> Self

impl<C> Hash for ErrorCode<C>

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl<C> Ord for ErrorCode<C>

fn cmp(&self, other: &Self) -> Ordering

fn max(self, other: Self) -> Self

fn min(self, other: Self) -> Self

fn clamp(self, min: Self, max: Self) -> Self

impl PartialEq<Error> for ErrorCode<PosixCategory>

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

fn ne(&self, other: &Rhs) -> bool

impl PartialEq<Error> for ErrorCode<SystemCategory>

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

fn ne(&self, other: &Rhs) -> bool

impl<C> PartialEq<ErrorCode<C>> for ErrorCode<C>

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

fn ne(&self, other: &Rhs) -> bool

impl<C> PartialOrd<ErrorCode<C>> for ErrorCode<C>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

fn lt(&self, other: &Rhs) -> bool

fn le(&self, other: &Rhs) -> bool

fn gt(&self, other: &Rhs) -> bool

fn ge(&self, other: &Rhs) -> bool

impl<C> Copy for ErrorCode<C>

impl<C> Eq for ErrorCode<C>

impl<C> Send for ErrorCode<C>

impl<C> Sync for ErrorCode<C>

impl<C> Unpin for ErrorCode<C>

Auto Trait Implementations

impl<C> RefUnwindSafe for ErrorCode<C> where C: RefUnwindSafe,

impl<C> UnwindSafe for ErrorCode<C> where C: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

pub fn into_another<O: Category>(self) -> ErrorCode<O> where
C: IntoCategory<O>,

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

impl<C> RefUnwindSafe for ErrorCode<C> where
C: RefUnwindSafe,

impl<C> UnwindSafe for ErrorCode<C> where
C: UnwindSafe,

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

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

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

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

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

impl<T> ToString for T where
T: Display + ?Sized,

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

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