Struct Span 

pub struct Span {
    pub file: FileId,
    pub start: u32,
    pub end: u32,
}

Fields

file: FileId

start: u32

end: u32

Implementations

impl Span

pub const fn new( file: FileId, start: u32, end: u32, ) -> Result<Self, SourceError>

pub fn text(self, source: &str, file: FileId) -> Result<&str, SourceError>

pub const fn at(file: FileId) -> Self

A zero-length placeholder anchored to file — for definitions and generated nodes that have a logical home file but no source range (prelude/stdlib declarations, desugared temporaries). The home is always named explicitly: a reserved id for prelude/stdlib, the script’s id for compiler-generated user-code nodes.

pub fn first_line_of(self, text: &str) -> Self

This span cut to its first line of text, its file’s source; unchanged when it is not a range of text. A line ends at \n or \r, as in LineIndex.

pub const fn is_placeholder(self) -> bool

Whether this is a Self::at placeholder, which locates nothing.

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

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

pub fn encloses(self, inner: Span) -> bool

Whether inner lies wholly within this span, in the same file.

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<'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 Eq for Span

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: &Self) -> bool

Equality operator ==.

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

Inequality 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 StructuralPartialEq for Span