Enum ScanRunError 

pub enum ScanRunError {
    Candidate(CandidateError),
    Scanner(ScannerError),
}

What: Why a scan pass stopped: the candidate layer failed, or the scanner did. Each variant carries the original typed failure. Why: Either way some file was not checked, so the pass has no result. Keeping the original failure lets the caller report its own cause.

In TS you’d write (pseudocode):

type ScanRunError = { kind: 'candidate'; error: CandidateError } | { kind: 'scanner'; error: ScannerError };

Variants

Candidate(CandidateError)

Candidate bytes could not be read.

Scanner(ScannerError)

The scanner could not be given a candidate.

Trait Implementations

impl Clone for ScanRunError

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScanRunError

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

Formats the value using the given formatter.

impl Display for ScanRunError

What: impl std::fmt::Display for ScanRunError supplies Rust’s “print me” interface. Why: The message is the wrapped failure’s own, unchanged.

In TS you’d write (pseudocode):

toString(): string { return this.error.message; }

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

&self borrows this error read-only; &mut lends the formatter for writing.

impl Eq for ScanRunError

impl Error for ScanRunError

An empty impl marks the type as a standard error value.

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 PartialEq for ScanRunError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ScanRunError