Method parse_and_extract_file

crates/csskit/src/commands/extract.rs:145–178

Parse and extract from one file. Returns Ok(rows) or Err(error_record). `on_stylesheet` is called with the stylesheet while still in scope.

(
		&self,
		file: &str,
		src: &str,
		bump: &Bump,
		on_stylesheet: &mut dyn for<'a> FnMut(&StyleSheet<'a>),
	)

	/// Parse and extract from one file. Returns Ok(rows) or Err(error_record).
	/// `on_stylesheet` is called with the stylesheet while still in scope.
	fn parse_and_extract_file(
		&self,
		file: &str,
		src: &str,
		bump: &Bump,
		on_stylesheet: &mut dyn for<'a> FnMut(&StyleSheet<'a>),
	) -> Result<Vec<(Span, Self::Row)>, ErrorRecord> {
		let mut rows = Vec::new();
		if self.try_content(src, bump, &mut rows) {
			return Ok(rows);
		}

		let lexer = Lexer::new(&CssAtomSet::ATOMS, src);
		let mut parser = Parser::new(bump, src, lexer);
		let result = parser.parse_entirely::<StyleSheet>();

		if let Some(stylesheet) = result.output {
			on_stylesheet(&stylesheet);
			self.extract(&stylesheet, src, &mut rows);
			Ok(rows)
		} else {
			let message = result
				.errors
				.first()
				.map(|e| {
					if matches!(self.format(), OutputFormat::Text) {
						eprintln!("{}", crate::commands::format_diagnostic_error(e, src, file));
					}
					e.message(src).to_string()
				})
				.unwrap_or_else(|| "parse failed".to_string());
			Err(ErrorRecord { kind: ErrorKind::ParseError, message })
		}
	}

	/// Run the command: loop files, parse, extract, render.
	fn run(&self, config: GlobalConfig) -> CliResult {