Method parse_match_statement

crates/ruff_python_parser/src/parser/statement.rs:2610–2641

Parses a match statement. # Panics If the parser isn't positioned at a `match` token. See:

(&mut self)

    ///
    /// See: <https://docs.python.org/3/reference/compound_stmts.html#the-match-statement>
    fn parse_match_statement(&mut self) -> ast::StmtMatch {
        let start = self.node_start();
        self.bump(TokenKind::Match);

        let match_range = self.node_range(start);

        let subject = self.parse_match_subject_expression();
        self.expect(TokenKind::Colon);

        let cases = self.parse_match_body();

        // test_err match_before_py310
        // # parse_options: { "target-version": "3.9" }
        // match 2:
        //     case 1:
        //         pass

        // test_ok match_after_py310
        // # parse_options: { "target-version": "3.10" }
        // match 2:
        //     case 1:
        //         pass

        self.add_unsupported_syntax_error(UnsupportedSyntaxErrorKind::Match, match_range);

        ast::StmtMatch {
            subject: Box::new(subject),
            cases,
            range: self.node_range(start),
            node_index: AtomicNodeIndex::NONE,
        }
    }

    /// Parses the subject expression for a `match` statement.
    fn parse_match_subject_expression(&mut self) -> Expr {