1.0.0[][src]Enum boolean_enums::lstd::env::VarError

pub enum VarError {
    NotPresent,
    NotUnicode(OsString),
}

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

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 Eq for VarError
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impl Clone for VarError
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source. Read more

impl Error for VarError
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fn cause(&self) -> Option<&dyn Error>
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Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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

fn source(&self) -> Option<&(dyn Error + 'static)>
1.30.0
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The lower-level source of this error, if any. Read more

impl PartialEq<VarError> for VarError
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impl Debug for VarError
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impl Display for VarError
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Auto Trait Implementations

impl Send for VarError

impl Sync for VarError

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

impl<T> From for T
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impl<T> ToString for T where
    T: Display + ?Sized
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impl<T, U> TryFrom for T where
    T: From<U>, 
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type Error = !

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

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

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

The type returned in the event of a conversion error.

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