Trait Span 

pub trait Span: Clone {
    type Uri: PartialEq + Clone + Display;
    type Source: AsRef<str> + Clone;
    type Index: Indexer + ?Sized;

    // Required methods
    fn start(&self) -> usize;
    fn end(&self) -> usize;
    fn source_text(&self) -> &Self::Source;
    fn source_index(&self) -> &Self::Index;
    fn uri(&self) -> &Self::Uri;

    // Provided method
    fn range(&self) -> Range<usize> { ... }
}

Trait for span types used in error enums.

Required Associated Types

type Uri: PartialEq + Clone + Display

The URI type for the span.

type Source: AsRef<str> + Clone

The source text type for the span.

type Index: Indexer + ?Sized

The index of the source text.

Required Methods

fn start(&self) -> usize

Get the start position of the span.

fn end(&self) -> usize

Get the end position of the span.

fn source_text(&self) -> &Self::Source

Get the source text of the span.

fn source_index(&self) -> &Self::Index

Get the index of the source.

fn uri(&self) -> &Self::Uri

Get the URI of the span.

Provided Methods

fn range(&self) -> Range<usize>

Get the range of the span.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Span for SimpleSpan

type Uri = Arc<str>

type Source = Arc<str>

type Index = Arc<LineIndexer>