Struct Span 

pub struct Span {
    pub start: u32,
    pub end: u32,
    pub file_id: u32,
}

A span of source code, from start to end (exclusive) in a specific file.

Fields

start: u32

Start byte offset in the source file

end: u32

End byte offset (exclusive)

file_id: u32

File ID (from a file table)

Implementations

impl Span

pub const fn new(start: u32, end: u32, file_id: u32) -> Self

Create a new span

pub const fn dummy() -> Self

Create a dummy span (for generated code)

pub fn merge(self, other: Self) -> Self

Merge two spans (takes from start of first to end of second)

pub fn to(self, other: Self) -> Self

Create a span from the start of this span to the end of another

pub const fn contains(&self, offset: u32) -> bool

Check if this span contains a byte offset

pub const fn len(&self) -> u32

Get the length of this span in bytes

pub const fn is_empty(&self) -> bool

Check if this span is empty

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() -> Self

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 Display for Span

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

Formats the value using the given formatter.

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 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 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