Struct ErrorContext 

pub struct ErrorContext { /* private fields */ }

Error context containing optional entry number and span information.

Implementations

impl ErrorContext

pub fn new(span: Span) -> Self

Create a new error context with the given span.

pub fn with_entry(self, entry: usize) -> Self

Add entry number to this context.

pub fn adjust_offset(self, adjustment: usize) -> Self

Adjust the span offset by adding the given amount.

pub fn with_span_if_none(self, span: Span) -> Self

Set span if not already set.

pub const fn entry(&self) -> Option<usize>

Return the entry number if set.

pub const fn span(&self) -> Option<Span>

Return the span if set.

Trait Implementations

impl Clone for ErrorContext

fn clone(&self) -> ErrorContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorContext

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

Formats the value using the given formatter.

impl Default for ErrorContext

fn default() -> ErrorContext

Returns the “default value” for a type.

impl PartialEq for ErrorContext

fn eq(&self, other: &ErrorContext) -> 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 ErrorContext

impl StructuralPartialEq for ErrorContext