Enum AnswerSheetDiagnostic 

pub enum AnswerSheetDiagnostic {
    Incompatible {
        message: String,
    },
    Tag {
        line: usize,
        message: String,
    },
    SuspectedTagInAnswer {
        path: String,
        line: usize,
    },
    UnreadableDocument {
        detail: String,
    },
}

One problem found while parsing an answer sheet.

Diagnostics identify locations by 1-based line number and fields by stable ID or occurrence path; they never echo full answer values, since answer sheets may contain sensitive content. Compatibility diagnostics deliberately point at re-rendering: version 1 rejects incompatible sheets instead of migrating them.

Variants

Incompatible

The document is incompatible with the parsing definition: a missing or malformed #! preamble line, an unsupported answer-format version, or a questionnaire-ID or fingerprint mismatch. The message points at rendering a fresh sheet; version 1 rejects instead of migrating.

Fields

message: String

What is incompatible, and what to do about it.

Tag

A question or group tag line could not be accepted: its terminal <id:...> tag is unknown to the schema, duplicated, or outside the scope its definition allows.

Fields

line: usize

1-based line number of the rejected tag line.

message: String

Which tag was rejected, and why.

SuspectedTagInAnswer

Warning: accepted answer text contains <id: — a mid-line tag mention, a mangled tag, or a half-deleted one. The submission is still accepted; a tag only structures the sheet when it ends its line.

Fields

path: String

The occurrence path of the answer holding the fragment.

line: usize

1-based line number of the answer line containing <id:.

UnreadableDocument

The answer-sheet document could not be read at all (unreadable file, terminal stdin, or an I/O failure), so no content was parsed.

Fields

detail: String

What prevented reading, without any document content.

Trait Implementations

impl Clone for AnswerSheetDiagnostic

fn clone(&self) -> AnswerSheetDiagnostic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AnswerSheetDiagnostic

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

Formats the value using the given formatter.

impl Display for AnswerSheetDiagnostic

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

Formats the value using the given formatter.

impl Eq for AnswerSheetDiagnostic

impl Error for AnswerSheetDiagnostic

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 AnswerSheetDiagnostic

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AnswerSheetDiagnostic