Struct Spanned 

pub struct Spanned<T> {
    pub value: T,
    pub span: Span,
}

A value with source span information.

This struct wraps a value along with the source location (offset and length) where it was parsed from. This is useful for error reporting that can point back to the original source.

Fields

value: T

The wrapped value.

span: Span

The source span (offset and length).

Implementations

impl<T> Spanned<T>

pub const fn new(value: T, span: Span) -> Self

Create a new spanned value.

pub fn span(&self) -> Span

Get the source span.

pub fn value(&self) -> &T

Get a reference to the inner value.

pub fn into_inner(self) -> T

Unwrap into the inner value, discarding span information.

Trait Implementations

impl<T: Clone> Clone for Spanned<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Spanned<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for Spanned<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> Deref for Spanned<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T: Facet<'a>> Facet<'a> for Spanned<T>

const SHAPE: &'static Shape

The shape of this type, including: whether it’s a Struct, an Enum, something else?

impl<T: PartialEq> PartialEq for Spanned<T>

fn eq(&self, other: &Self) -> 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<T: Eq> Eq for Spanned<T>