Interface Parse

crates/css_parse/src/traits/parse.rs:19–31

This trait allows AST nodes to construct themselves from a mutable [Parser] instance. Nodes that implement this trait are entitled to consume any number of [Cursors][crate::Cursor] from [Parser] in order to construct themselves. They may also consume some amount of tokens and still return an [Err] - there is no need to try and reset the [Parser] state on failure ([Parser::try_parse()] exists for

/// If a Node can construct itself from a single [Cursor][crate::Cursor] it should implement
/// [Peek][crate::Peek] and [Parse], where [Parse::parse()] calls [Parser::next()] and constructs from the cursor.
pub trait Parse<'a>: Sized {
	fn parse<I>(p: &mut Parser<'a, I>) -> Result<Self>
	where
		I: Iterator<Item = Cursor> + Clone;

	fn try_parse<I>(p: &mut Parser<'a, I>) -> Result<Self>
	where
		I: Iterator<Item = Cursor> + Clone,
	{
		let checkpoint = p.checkpoint();
		Self::parse(p).inspect_err(|_| p.rewind(checkpoint))
	}
}

impl<'a, T> Parse<'a> for Option<T>
where