Struct ParseDiagnostic 

#[non_exhaustive]
pub struct ParseDiagnostic {
    pub kind: Option<ParseDiagnosticKind>,
    pub message: String,
    pub span: Span,
    pub expected: Vec<String>,
    pub found: Option<String>,
    pub contexts: Vec<ParseDiagnosticContext>,
}

A single diagnostic produced during parsing.

Diagnostics carry both a human-readable message and structured expected/found information for richer error reporting.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

kind: Option<ParseDiagnosticKind>

Stable machine-readable diagnostic kind, when available

message: String

Human-readable error description

span: Span

Source location of the error

expected: Vec<String>

Tokens or patterns the parser expected at this point

found: Option<String>

Token actually found, if any

contexts: Vec<ParseDiagnosticContext>

Additional related source ranges for richer diagnostics

Implementations

impl ParseDiagnostic

pub fn new( message: impl Into<String>, span: Span, expected: Vec<String>, found: Option<String>, contexts: Vec<ParseDiagnosticContext>, ) -> Self

Trait Implementations

impl Clone for ParseDiagnostic

fn clone(&self) -> ParseDiagnostic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseDiagnostic

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

Formats the value using the given formatter.

impl Serialize for ParseDiagnostic

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.