Enum `VarError`

pub enum VarError

The error type for operations interacting with environment variables. Possibly returned from env::var().

Variants

NotPresent: The specified environment variable was not present in the current process's environment.
NotUnicode(OsString): The specified environment variable was found, but it did not contain valid unicode data. The found data is returned as a payload of this variant.

Trait Implementations

`impl Clone for VarError`

fn clone(&self) -> VarError

`impl Debug for VarError`

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

`impl Display for VarError`

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

`impl Eq for VarError`

fn assert_fields_are_eq(&self)

`impl Error for VarError`

`impl PartialEq for VarError`

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

`impl StructuralPartialEq for VarError`

Auto Trait Implementations

`impl Freeze for VarError`

`impl RefUnwindSafe for VarError`

`impl Send for VarError`

`impl Sync for VarError`

`impl Unpin for VarError`

`impl UnsafeUnpin for VarError`

`impl UnwindSafe for VarError`

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

`impl<T> CloneToUninit for VarError where T: Clone,`

unsafe fn clone_to_uninit(&self, dest: *mut u8)

`impl<T> From<T> for VarError`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> SizeHint for VarError where T: ?Sized,`

fn lower_bound(&self) -> usize
fn upper_bound(&self) -> Option<usize>

`impl<T> SizedTypeProperties for VarError`

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

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

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

fn to_string(&self) -> String

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

fn into(self) -> U

Calls U::from(self).

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

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

type Error = Infallible;
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

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