Enum ExtractError 

pub enum ExtractError {
    NotFound(String),
    NotExtractable {
        name: String,
        reason: String,
    },
    Internal(String),
}

Errors that can occur during extraction.

Variants

NotFound(String)

Name not found in context.

NotExtractable

Cannot extract this kind of term (e.g., Prop).

Fields

name: String

reason: String

Internal(String)

Internal extraction error.

Trait Implementations

impl Debug for ExtractError

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

Formats the value using the given formatter.

impl Display for ExtractError

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

Formats the value using the given formatter.

impl Error for ExtractError

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.