Enum EnvError 

pub enum EnvError {
    Variable {
        name: &'static str,
        source: VarError,
    },
    Invalid {
        name: &'static str,
        detail: String,
    },
}

A provider’s configuration could not be read from the environment.

Variants

Variable

A required variable is absent, or its value is not valid Unicode.

Fields

name: &'static str

The variable’s name.

source: VarError

The underlying lookup failure.

Invalid

A variable’s value is present but unusable (an unparsable URL, an empty credential).

Fields

name: &'static str

The variable’s name.

detail: String

What is wrong with the value.

Trait Implementations

impl Debug for EnvError

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

Formats the value using the given formatter.

impl Display for EnvError

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

Formats the value using the given formatter.

impl Error for EnvError

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.