Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/astroid/brain/brain_fstrings.py: 37%

1# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html 

2# For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE 

3# Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt 

4 

5from __future__ import annotations 

6 

7import collections.abc 

8from typing import TypeVar 

9 

10from astroid import nodes 

11from astroid.manager import AstroidManager 

12 

13_NodeT = TypeVar("_NodeT", bound=nodes.NodeNG) 

14 

15 

16def _clone_node_with_lineno( 

17 node: _NodeT, parent: nodes.NodeNG, lineno: int | None 

18) -> _NodeT: 

19 cls = node.__class__ 

20 other_fields = node._other_fields 

21 _astroid_fields = node._astroid_fields 

22 init_params = { 

23 "lineno": lineno, 

24 "col_offset": node.col_offset, 

25 "parent": parent, 

26 "end_lineno": node.end_lineno, 

27 "end_col_offset": node.end_col_offset, 

28 } 

29 postinit_params = {param: getattr(node, param) for param in _astroid_fields} 

30 if other_fields: 

31 init_params.update({param: getattr(node, param) for param in other_fields}) 

32 new_node = cls(**init_params) 

33 if hasattr(node, "postinit") and _astroid_fields: 

34 for param, child in postinit_params.items(): 

35 if child and not isinstance(child, collections.abc.Sequence): 

36 cloned_child = _clone_node_with_lineno( 

37 node=child, lineno=new_node.lineno, parent=new_node 

38 ) 

39 postinit_params[param] = cloned_child 

40 new_node.postinit(**postinit_params) 

41 return new_node 

42 

43 

44def _transform_formatted_value( # pylint: disable=inconsistent-return-statements 

45 node: nodes.FormattedValue, 

46) -> nodes.FormattedValue | None: 

47 if node.value and node.value.lineno == 1: 

48 if node.lineno != node.value.lineno: 

49 new_node = nodes.FormattedValue( 

50 lineno=node.lineno, 

51 col_offset=node.col_offset, 

52 parent=node.parent, 

53 end_lineno=node.end_lineno, 

54 end_col_offset=node.end_col_offset, 

55 ) 

56 new_value = _clone_node_with_lineno( 

57 node=node.value, lineno=node.lineno, parent=new_node 

58 ) 

59 new_node.postinit( 

60 value=new_value, 

61 conversion=node.conversion, 

62 format_spec=node.format_spec, 

63 ) 

64 return new_node 

65 

66 

67# TODO: this fix tries to *patch* http://bugs.python.org/issue29051 

68# The problem is that FormattedValue.value, which is a Name node, 

69# has wrong line numbers, usually 1. This creates problems for pylint, 

70# which expects correct line numbers for things such as message control. 

71AstroidManager().register_transform(nodes.FormattedValue, _transform_formatted_value)