Enum app_dirs::AppDirsError

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pub enum AppDirsError {
    Io(Error),
    NotSupported,
    InvalidAppInfo,
}

Expand description

Error type for any app_dirs operation.

Variants

`Io(Error)`

An I/O error occurred during the operation.

`NotSupported`

App-specific directories are not properly supported by the system (e.g. required environment variables don’t exist).

`InvalidAppInfo`

App info given to this library was invalid (e.g. app name or author were empty).

Trait Implementations

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impl Debug for AppDirsError

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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 Display for AppDirsError

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

Formats the value using the given formatter. Read more

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impl Error for AppDirsError

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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

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

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impl From<Error> for AppDirsError

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fn from(e: Error) -> Self

Performs the conversion.

Auto Trait Implementations

impl !RefUnwindSafe for AppDirsError

impl Send for AppDirsError

impl Sync for AppDirsError

impl Unpin for AppDirsError

impl !UnwindSafe for AppDirsError

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

Returns the argument unchanged.

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

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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.

Enum app_dirs::AppDirsError

Variants

Io(Error)

NotSupported

InvalidAppInfo

Trait Implementations

impl Debug for AppDirsError

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

impl Display for AppDirsError

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

impl Error for AppDirsError

fn description(&self) -> &str

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

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

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

impl From<Error> for AppDirsError

fn from(e: Error) -> Self

Auto Trait Implementations

impl !RefUnwindSafe for AppDirsError

impl Send for AppDirsError

impl Sync for AppDirsError

impl Unpin for AppDirsError

impl !UnwindSafe for AppDirsError

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

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

pub fn into(self) -> U

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

pub default fn to_string(&self) -> String

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

type Error = Infallible

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

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

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

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

`Io(Error)`

`NotSupported`

`InvalidAppInfo`

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> 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>,