Parses a `for` statement. The given `start` offset is the start of either the `for` token or the `async` token if it's an async for statement. # Panics If the parser isn't positioned at a `for` token. See:
(&mut self, start: TextSize)
| 1844 | /// |
| 1845 | /// See: <https://docs.python.org/3/reference/compound_stmts.html#the-for-statement> |
| 1846 | fn parse_for_statement(&mut self, start: TextSize) -> ast::StmtFor { |
| 1847 | self.bump(TokenKind::For); |
| 1848 | |
| 1849 | // test_err for_stmt_missing_target |
| 1850 | // for in x: ... |
| 1851 | |
| 1852 | // test_ok for_in_target_valid_expr |
| 1853 | // for d[x in y] in target: ... |
| 1854 | // for (x in y)[0] in iter: ... |
| 1855 | // for (x in y).attr in iter: ... |
| 1856 | |
| 1857 | // test_err for_stmt_invalid_target_in_keyword |
| 1858 | // for d(x in y) in target: ... |
| 1859 | // for (x in y)() in iter: ... |
| 1860 | // for (x in y) in iter: ... |
| 1861 | // for (x in y, z) in iter: ... |
| 1862 | // for [x in y, z] in iter: ... |
| 1863 | // for {x in y, z} in iter: ... |
| 1864 | |
| 1865 | // test_err for_stmt_invalid_target_binary_expr |
| 1866 | // for x not in y in z: ... |
| 1867 | // for x == y in z: ... |
| 1868 | // for x or y in z: ... |
| 1869 | // for -x in y: ... |
| 1870 | // for not x in y: ... |
| 1871 | // for x | y in z: ... |
| 1872 | let mut target = |
| 1873 | self.parse_expression_list(ExpressionContext::starred_conditional().with_in_excluded()); |
| 1874 | |
| 1875 | helpers::set_expr_ctx(&mut target.expr, ExprContext::Store); |
| 1876 | |
| 1877 | // test_err for_stmt_invalid_target |
| 1878 | // for 1 in x: ... |
| 1879 | // for "a" in x: ... |
| 1880 | // for *x and y in z: ... |
| 1881 | // for *x | y in z: ... |
| 1882 | // for await x in z: ... |
| 1883 | // for yield x in y: ... |
| 1884 | // for [x, 1, y, *["a"]] in z: ... |
| 1885 | self.validate_assignment_target(&target.expr); |
| 1886 | |
| 1887 | // test_err for_stmt_missing_in_keyword |
| 1888 | // for a b: ... |
| 1889 | // for a: ... |
| 1890 | self.expect(TokenKind::In); |
| 1891 | |
| 1892 | // test_err for_stmt_missing_iter |
| 1893 | // for x in: |
| 1894 | // a = 1 |
| 1895 | |
| 1896 | // test_err for_stmt_invalid_iter_expr |
| 1897 | // for x in *a and b: ... |
| 1898 | // for x in yield a: ... |
| 1899 | // for target in x := 1: ... |
| 1900 | let iter = self.parse_expression_list(ExpressionContext::starred_bitwise_or()); |
| 1901 | |
| 1902 | // test_ok for_iter_unpack_py39 |
| 1903 | // # parse_options: {"target-version": "3.9"} |
no test coverage detected