Enum EnvVariableReadError 

pub enum EnvVariableReadError {
    NotPresent {
        name: EnvVariableName,
    },
    NotUnicode {
        name: EnvVariableName,
    },
    InvalidValue {
        name: EnvVariableName,
        source: EnvVariableValueError,
    },
}

Failure reading an environment variable via EnvVariableName::read.

Variants

NotPresent

Fields

name: EnvVariableName

NotUnicode

Fields

name: EnvVariableName

InvalidValue

Fields

name: EnvVariableName

source: EnvVariableValueError

Trait Implementations

impl Debug for EnvVariableReadError

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

Formats the value using the given formatter.

impl Display for EnvVariableReadError

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

Formats the value using the given formatter.

impl Error for EnvVariableReadError

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

Returns the lower-level source of this error, if any.

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

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl<E> From<EnvVariableReadError> for EnvVariableLoadError<E>

fn from(source: EnvVariableReadError) -> Self

Converts to this type from the input type.