css_parse/
cursor_to_source_cursor_sink.rs

1use crate::{Cursor, CursorSink, SourceCursor, SourceCursorSink};
2use std::fmt::Write;
3
4pub struct CursorToSourceCursorSink<'a, T: SourceCursorSink<'a>> {
5	source: &'a str,
6	sink: T,
7}
8
9impl<'a, T: SourceCursorSink<'a>> CursorToSourceCursorSink<'a, T> {
10	pub fn new(source: &'a str, sink: T) -> Self {
11		Self { source, sink }
12	}
13}
14
15impl<'a, T: SourceCursorSink<'a>> CursorSink for CursorToSourceCursorSink<'a, T> {
16	fn append(&mut self, cursor: Cursor) {
17		self.sink.append(SourceCursor::from(cursor, cursor.str_slice(self.source)))
18	}
19}
20
21impl<'a> SourceCursorSink<'a> for String {
22	fn append(&mut self, c: SourceCursor<'a>) {
23		let _ = write!(self, "{c}");
24	}
25}
26
27impl<'a, T: SourceCursorSink<'a>> SourceCursorSink<'a> for &mut T {
28	fn append(&mut self, c: SourceCursor<'a>) {
29		(**self).append(c)
30	}
31}
32
33#[cfg(test)]
34mod test {
35	use super::*;
36	use crate::{ComponentValues, EmptyAtomSet, Parser, ToCursors};
37	use bumpalo::Bump;
38	use css_lexer::Lexer;
39
40	#[test]
41	fn test_source_cursor_sink_for_string() {
42		let source_text = "black white";
43		let bump = Bump::default();
44		let mut str = String::new();
45		let mut transform = CursorToSourceCursorSink::new(source_text, &mut str);
46		let lexer = Lexer::new(&EmptyAtomSet::ATOMS, source_text);
47		let mut parser = Parser::new(&bump, source_text, lexer);
48		parser.parse_entirely::<ComponentValues>().output.unwrap().to_cursors(&mut transform);
49		assert_eq!(str, "black white");
50	}
51}
css_parse/cursor_to_source_cursor_sink.rs

css_parse/
cursor_to_source_cursor_sink.rs
