Enum ExtractionError 

pub enum ExtractionError {
    Missing {
        field: &'static str,
        selector: &'static str,
    },
    CdpFailed {
        field: &'static str,
        source: Box<BrowserError>,
    },
    Nested {
        field: &'static str,
        source: Box<Self>,
    },
}

An error produced during #[derive(Extract)]-driven extraction.

The CdpFailed variant boxes its crate::error::BrowserError to avoid an infinitely sized recursive type, since BrowserError::ExtractionFailed can contain this enum.

Variants

Missing

Example

use stygian_browser::extract::ExtractionError;

Fields

field: &'static str

Name of the Rust struct field that required a match.

selector: &'static str

CdpFailed

A CDP call inside extraction failed.

infinitely-sized recursive type (since BrowserError may itself contain an ExtractionError via its ExtractionFailed variant).

Fields

field: &'static str

Name of the struct field whose CDP call failed.

source: Box<BrowserError>

Underlying browser / CDP error.

Nested

Example

use stygian_browser::extract::ExtractionError;
let e = ExtractionError::Nested {
    field: "link",
    source: Box::new(inner),
};

Fields

field: &'static str

Name of the outer struct field that triggered nested extraction.

source: Box<Self>

Inner extraction failure.

Trait Implementations

impl Debug for ExtractionError

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

Formats the value using the given formatter.

impl Display for ExtractionError

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

Formats the value using the given formatter.

impl Error for ExtractionError

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<ExtractionError> for BrowserError

fn from(source: ExtractionError) -> Self

Converts to this type from the input type.