Method parse_directive

aiscript-directive/src/lib.rs:79–106

(&mut self)

    #[must_use]
    pub fn parse_directive(&mut self) -> Option<Directive> {
        self.scanner
            .consume(TokenType::At, "Expected '@' at start of directive");

        if self.scanner.is_at_end() {
            self.scanner.error_at_current("Unexpected end");
            return None;
        }

        let name_token = self.scanner.current;
        self.scanner.advance();
        let name = name_token.lexeme.to_owned();

        let params = if self.scanner.match_token(TokenType::OpenParen) {
            let params = self.parse_parameters()?;
            self.scanner
                .consume(TokenType::CloseParen, "Expect ')' after parameters.");
            params
        } else {
            DirectiveParams::KeyValue(HashMap::new())
        };

        Some(Directive {
            name,
            params,
            line: name_token.line,
        })
    }

    fn parse_parameters(&mut self) -> Option<DirectiveParams> {
        // Handle empty parentheses case first