Struct Spanned

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

A wrapper that associates a span with a value.

Fields

value: T

span: Span

Implementations

impl<T> Spanned<T>

pub fn new(value: T, span: Span) -> Spanned<T>

Wrap a given value together with the span it covers.

pub fn map<U, F: FnOnce(T) -> U>(self, f: F) -> Spanned<U>

Map the spanned value, preserving the span.

pub fn map_into<U>(self) -> Spanned<U>

where T: Into<U>,

pub fn as_ref(&self) -> Spanned<&T>

Trait Implementations

impl<T> Clone for Spanned<T>

where T: Clone,

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 for Spanned<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> Display for Spanned<T>

where T: Display,

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

Formats the value using the given formatter.

impl<T> HasDesc for Spanned<T>

where T: HasDesc,

fn desc(&self) -> &'static str

Obtain a human-readable descriptive name for this node.

fn desc_full(&self) -> String

Obtain a human-readable description for this node, possibly containing the node’s name.

impl<T> HasSpan for Spanned<T>

fn span(&self) -> Span

Obtain the full span of the input file that this node covers.

fn human_span(&self) -> Span

Obtain a span which can be used to refer to this node in error messages presented to humans. This will generally be the name for things like entities, processes, and variables. Defaults to return whatever span() returns.

impl<T> Hash for Spanned<T>

where T: Hash,

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: Ord> Ord for Spanned<T>

fn cmp(&self, other: &Spanned<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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

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

fn partial_cmp(&self, other: &Spanned<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> Copy for Spanned<T>

where T: Copy,

impl<T: Eq> Eq for Spanned<T>

impl<T> StructuralPartialEq for Spanned<T>