73 lines
2.7 KiB
Python
73 lines
2.7 KiB
Python
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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
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# For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
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# Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
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from __future__ import annotations
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import collections.abc
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from typing import TypeVar
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from astroid import nodes
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from astroid.manager import AstroidManager
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_NodeT = TypeVar("_NodeT", bound=nodes.NodeNG)
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def _clone_node_with_lineno(
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node: _NodeT, parent: nodes.NodeNG, lineno: int | None
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) -> _NodeT:
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cls = node.__class__
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other_fields = node._other_fields
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_astroid_fields = node._astroid_fields
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init_params = {
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"lineno": lineno,
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"col_offset": node.col_offset,
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"parent": parent,
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"end_lineno": node.end_lineno,
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"end_col_offset": node.end_col_offset,
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}
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postinit_params = {param: getattr(node, param) for param in _astroid_fields}
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if other_fields:
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init_params.update({param: getattr(node, param) for param in other_fields})
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new_node = cls(**init_params)
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if hasattr(node, "postinit") and _astroid_fields:
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for param, child in postinit_params.items():
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if child and not isinstance(child, collections.abc.Sequence):
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cloned_child = _clone_node_with_lineno(
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node=child, lineno=new_node.lineno, parent=new_node
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)
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postinit_params[param] = cloned_child
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new_node.postinit(**postinit_params)
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return new_node
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def _transform_formatted_value( # pylint: disable=inconsistent-return-statements
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node: nodes.FormattedValue,
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) -> nodes.FormattedValue | None:
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if node.value and node.value.lineno == 1:
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if node.lineno != node.value.lineno:
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new_node = nodes.FormattedValue(
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lineno=node.lineno,
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col_offset=node.col_offset,
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parent=node.parent,
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end_lineno=node.end_lineno,
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end_col_offset=node.end_col_offset,
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)
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new_value = _clone_node_with_lineno(
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node=node.value, lineno=node.lineno, parent=new_node
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)
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new_node.postinit(
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value=new_value,
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conversion=node.conversion,
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format_spec=node.format_spec,
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)
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return new_node
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# TODO: this fix tries to *patch* http://bugs.python.org/issue29051
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# The problem is that FormattedValue.value, which is a Name node,
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# has wrong line numbers, usually 1. This creates problems for pylint,
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# which expects correct line numbers for things such as message control.
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def register(manager: AstroidManager) -> None:
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manager.register_transform(nodes.FormattedValue, _transform_formatted_value)
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