Method parse_label_matchers

nodedb/src/control/promql/parser.rs:255–270

(&mut self)

    }

    fn parse_label_matchers(&mut self) -> Result<Vec<LabelMatcher>, PromqlError> {
        self.expect(&Token::LBrace)?;
        let mut matchers = Vec::new();
        if !matches!(self.peek(), Token::RBrace) {
            matchers.push(self.parse_one_matcher()?);
            while matches!(self.peek(), Token::Comma) {
                self.advance();
                if matches!(self.peek(), Token::RBrace) {
                    break;
                }
                matchers.push(self.parse_one_matcher()?);
            }
        }
        self.expect(&Token::RBrace)?;
        Ok(matchers)
    }

    fn parse_one_matcher(&mut self) -> Result<LabelMatcher, PromqlError> {
        let Token::Ident(name) = self.advance().clone() else {