Struct SpanCopy item path

Create a new span from a starting and ending span.

Gives an empty span at the start of a source.

Measure the span of a string.

use codespan::{ByteIndex, Span};

let span = Span::from_str("hello");

assert_eq!(span, Span::new(0, 5));

Combine two spans by taking the start of the earlier span and the end of the later span.

Note: this will work even if the two spans are disjoint. If this doesn’t make sense in your application, you should handle it yourself. In that case, you can use Span::disjoint as a convenience function.

use codespan::Span;

let span1 = Span::new(0, 4);
let span2 = Span::new(10, 16);

assert_eq!(Span::merge(span1, span2), Span::new(0, 16));

A helper function to tell whether two spans do not overlap.

use codespan::Span;
let span1 = Span::new(0, 4);
let span2 = Span::new(10, 16);
assert!(span1.disjoint(span2));

Get the starting byte index.

use codespan::{ByteIndex, Span};

let span = Span::new(0, 4);

assert_eq!(span.start(), ByteIndex::from(0));

Get the ending byte index.

use codespan::{ByteIndex, Span};

let span = Span::new(0, 4);

assert_eq!(span.end(), ByteIndex::from(4));

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.