Enum Span 

pub enum Span {
    Compiler(Span),
    Fallback(Span),
}

A compiler or fallback source span.

Variants

Compiler(Span)

Fallback(Span)

Implementations

impl Span

pub fn call_site() -> Self

pub fn mixed_site() -> Self

pub fn def_site() -> Self

pub fn start(&self) -> Location

pub fn end(&self) -> Location

pub fn byte_range(&self) -> Range<usize>

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn contains(&self, i: usize) -> bool

pub fn is_subset(&self, other: &Self) -> bool

pub fn join(&self, other: Self) -> Self

pub fn split(self, at: usize) -> (Span, Span)

Split a span at head_len characters from its start, returning (head_span, rest_span). Only Fallback spans carry offsets we can split; for compiler spans we reuse the whole span for both halves.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Span

impl Debug for Span

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

Formats the value using the given formatter.

impl Default for Span

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Span

impl From<DelimSpan> for Span

fn from(value: DelimSpan) -> Self

Converts to this type from the input type.

impl From<RangeSpan> for Span

fn from(value: RangeSpan) -> Self

Converts to this type from the input type.

impl From<Span> for Span

fn from(value: Span) -> Self

Converts to this type from the input type.

impl From<Span> for Span

fn from(value: Span) -> Self

Converts to this type from the input type.

impl Hash for Span

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

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 MultiSpan for Span

Available on nightly only.

fn into_spans(self) -> Vec<Span>

🔬This is a nightly-only experimental API. (proc_macro_diagnostic)

Converts self into a Vec<Span>.

impl Ord for Span

fn cmp(&self, other: &Self) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Span

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Span

fn partial_cmp(&self, other: &Self) -> 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.