Enum EnvConfigError 

pub enum EnvConfigError {
    InvalidField {
        field: &'static str,
        reason: String,
    },
    MissingField {
        field: &'static str,
    },
    Environment(Box<CliCoreError>),
}

An error assembling an EnvConfig struct.

Variants

InvalidField

A present value failed to convert to the field’s type.

Fields

field: &'static str

The field’s Rust name.

reason: String

Why conversion failed.

MissingField

No source had a value for this field, and it has no default.

Fields

field: &'static str

The field’s Rust name.

Environment(Box<CliCoreError>)

The underlying environment failed to resolve at all (unknown name, unreadable/malformed environments.toml).

Trait Implementations

impl Debug for EnvConfigError

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

Formats the value using the given formatter.

impl Display for EnvConfigError

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

Formats the value using the given formatter.

impl Error for EnvConfigError

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 From<CliCoreError> for EnvConfigError

fn from(err: CliCoreError) -> Self

Converts to this type from the input type.

impl From<EnvConfigError> for CliCoreError

fn from(source: EnvConfigError) -> Self

Converts to this type from the input type.