Struct Diagnostic 

pub struct Diagnostic {
    pub severity: Severity,
    pub message: String,
    pub location: Option<SourceSpan>,
    pub expression_index: Option<usize>,
}

A single diagnostic produced during tolerant compilation.

Fields

severity: Severity

Severity of the diagnostic.

message: String

Human-readable message.

location: Option<SourceSpan>

Optional source location.

expression_index: Option<usize>

Index into the slice passed to the tolerant compiler, if the diagnostic is tied to one particular expression.

Implementations

impl Diagnostic

pub fn new(severity: Severity, message: impl Into<String>) -> Self

Construct a diagnostic from scratch.

pub fn info(message: impl Into<String>) -> Self

Convenience constructor for Severity::Info diagnostics.

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

Convenience constructor for Severity::Warning diagnostics.

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

Convenience constructor for Severity::Error diagnostics.

pub fn fatal(message: impl Into<String>) -> Self

Convenience constructor for Severity::Fatal diagnostics.

pub fn with_expression_index(self, idx: usize) -> Self

Attach an expression index (builder-style).

pub fn with_location(self, span: SourceSpan) -> Self

Attach a source span (builder-style).

pub fn is_blocking(&self) -> bool

Returns true when this diagnostic is blocking (i.e. Severity::Error or Severity::Fatal).

pub fn is_fatal(&self) -> bool

Returns true when this diagnostic is fatal (i.e. Severity::Fatal).

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.

impl PartialEq for Diagnostic

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Diagnostic

impl StructuralPartialEq for Diagnostic