Parses a `try` statement. # Panics If the parser isn't positioned at a `try` token. See:
(&mut self)
| 1533 | /// |
| 1534 | /// See: <https://docs.python.org/3/reference/compound_stmts.html#the-try-statement> |
| 1535 | fn parse_try_statement(&mut self) -> ast::StmtTry { |
| 1536 | let try_start = self.node_start(); |
| 1537 | self.bump(TokenKind::Try); |
| 1538 | self.expect(TokenKind::Colon); |
| 1539 | |
| 1540 | let mut is_star: Option<bool> = None; |
| 1541 | |
| 1542 | let try_body = self.parse_body(Clause::Try); |
| 1543 | |
| 1544 | let has_except = self.at(TokenKind::Except); |
| 1545 | |
| 1546 | // test_err try_stmt_mixed_except_kind |
| 1547 | // try: |
| 1548 | // pass |
| 1549 | // except: |
| 1550 | // pass |
| 1551 | // except* ExceptionGroup: |
| 1552 | // pass |
| 1553 | // try: |
| 1554 | // pass |
| 1555 | // except* ExceptionGroup: |
| 1556 | // pass |
| 1557 | // except: |
| 1558 | // pass |
| 1559 | // try: |
| 1560 | // pass |
| 1561 | // except: |
| 1562 | // pass |
| 1563 | // except: |
| 1564 | // pass |
| 1565 | // except* ExceptionGroup: |
| 1566 | // pass |
| 1567 | // except* ExceptionGroup: |
| 1568 | // pass |
| 1569 | let mut mixed_except_ranges = Vec::new(); |
| 1570 | let mut handlers = Vec::new(); |
| 1571 | self.parse_clauses(Clause::Except, |p| { |
| 1572 | let (handler, kind) = p.parse_except_clause(); |
| 1573 | if let ExceptClauseKind::Star(range) = kind { |
| 1574 | p.add_unsupported_syntax_error(UnsupportedSyntaxErrorKind::ExceptStar, range); |
| 1575 | } |
| 1576 | if is_star.is_none() { |
| 1577 | is_star = Some(kind.is_star()); |
| 1578 | } else if is_star != Some(kind.is_star()) { |
| 1579 | mixed_except_ranges.push(handler.range()); |
| 1580 | } |
| 1581 | if handlers.is_empty() { |
| 1582 | handlers.reserve_exact(1); |
| 1583 | } |
| 1584 | handlers.push(handler); |
| 1585 | }); |
| 1586 | handlers.shrink_to_fit(); |
| 1587 | |
| 1588 | // Empty handler has `is_star` false. |
| 1589 | let is_star = is_star.unwrap_or_default(); |
| 1590 | for handler_err_range in mixed_except_ranges { |
| 1591 | self.add_error( |
| 1592 | ParseErrorType::OtherError( |
no test coverage detected