Struct Diagnostic 

pub struct Diagnostic {
    pub severity: Severity,
    pub span: Span,
    pub message: String,
    pub hint: Option<String>,
    pub source_line: Option<String>,
}

A single diagnostic message with source context.

Fields

severity: Severity

Error or warning.

span: Span

Where in the source.

message: String

The message.

hint: Option<String>

A suggested fix, if any.

source_line: Option<String>

The source line text (for display).

Implementations

impl Diagnostic

pub fn error(span: Span, message: impl Into<String>) -> Self

An error at span.

pub fn warning(span: Span, message: impl Into<String>) -> Self

A warning at span.

pub fn with_hint(self, hint: impl Into<String>) -> Self

The same diagnostic with a hint.

pub fn with_source_line(self, line: impl Into<String>) -> Self

The same diagnostic with the source line shown under it.

Trait Implementations

impl Clone for Diagnostic

fn clone(&self) -> Diagnostic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Diagnostic

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

Formats the value using the given formatter.

impl Display for Diagnostic

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

Formats the value using the given formatter.