Struct Annotated 

pub struct Annotated<T> {
    pub value: T,
    pub start: usize,
    pub end: usize,
}

A span annotation: associates a value with its source location.

Fields

value: T

The parsed value.

start: usize

Start byte offset in the source.

end: usize

End byte offset (exclusive) in the source.

Implementations

impl<T> Annotated<T>

pub fn new(value: T, start: usize, end: usize) -> Self

Wrap a value with its source span.

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

Map the inner value, preserving span information.

pub fn span_len(&self) -> usize

Returns the length of this annotated span in bytes.

Trait Implementations

impl<T: Clone> Clone for Annotated<T>

fn clone(&self) -> Annotated<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Annotated<T>

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

Formats the value using the given formatter.