Enum Span

pub enum Span {
    Direct {
        start: usize,
        end: usize,
    },
    Indirect {
        start: usize,
        end: usize,
    },
    Unknown,
}

Represents a location in the source

Variants

Direct

Direct code reference through byte offset

Fields

start: usize

The start of the span in characters absolute to the beginning of the specification.

end: usize

The end of the span in characters absolute to the beginning of the specification.

Indirect

Indirect code reference created through ast refactoring

Fields

start: usize

The start of the span in characters absolute to the beginning of the specification.

end: usize

The end of the span in characters absolute to the beginning of the specification.

Unknown

An unknown code reference

Implementations

impl Span

pub fn is_indirect(&self) -> bool

Return true if the span is indirect.

pub fn is_unknown(&self) -> bool

Returns true if the span is unknown.

pub fn get_bounds(&self) -> (usize, usize)

Returns the start and end position of the span. Note: If the span is unknown returns (usize::min, usize::max)

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

Combines two spans to their union

pub fn to_indirect(self) -> Self

Converts a direct span to an indirect one.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Span

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

Formats the value using the given formatter.

impl Default for Span

fn default() -> Span

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Span

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> From<Span<'a>> for Span

fn from(span: Span<'a>) -> Self

Converts to this type from the input type.

impl From<Span> for Range<usize>

fn from(s: Span) -> Range<usize>

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 Ord for Span

fn cmp(&self, other: &Span) -> 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 PartialEq for Span

fn eq(&self, other: &Span) -> 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 PartialOrd for Span

fn partial_cmp(&self, other: &Span) -> 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 Serialize for Span

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Span

impl Eq for Span

impl StructuralPartialEq for Span