Initial commit

venv/lib/python3.8/site-packages/astroid/brain/brain_fstrings.py

@@ -0,0 +1,51 @@
+# Copyright (c) 2017-2018 Claudiu Popa <pcmanticore@gmail.com>
+
+# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
+# For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
+import collections
+import sys
+
+import astroid
+
+
+def _clone_node_with_lineno(node, parent, lineno):
+    cls = node.__class__
+    other_fields = node._other_fields
+    _astroid_fields = node._astroid_fields
+    init_params = {"lineno": lineno, "col_offset": node.col_offset, "parent": parent}
+    postinit_params = {param: getattr(node, param) for param in _astroid_fields}
+    if other_fields:
+        init_params.update({param: getattr(node, param) for param in other_fields})
+    new_node = cls(**init_params)
+    if hasattr(node, "postinit") and _astroid_fields:
+        for param, child in postinit_params.items():
+            if child and not isinstance(child, collections.Sequence):
+                cloned_child = _clone_node_with_lineno(
+                    node=child, lineno=new_node.lineno, parent=new_node
+                )
+                postinit_params[param] = cloned_child
+        new_node.postinit(**postinit_params)
+    return new_node
+
+
+def _transform_formatted_value(node):
+    if node.value and node.value.lineno == 1:
+        if node.lineno != node.value.lineno:
+            new_node = astroid.FormattedValue(
+                lineno=node.lineno, col_offset=node.col_offset, parent=node.parent
+            )
+            new_value = _clone_node_with_lineno(
+                node=node.value, lineno=node.lineno, parent=new_node
+            )
+            new_node.postinit(value=new_value, format_spec=node.format_spec)
+            return new_node
+
+
+if sys.version_info[:2] >= (3, 6):
+    # TODO: this fix tries to *patch* http://bugs.python.org/issue29051
+    # The problem is that FormattedValue.value, which is a Name node,
+    # has wrong line numbers, usually 1. This creates problems for pylint,
+    # which expects correct line numbers for things such as message control.
+    astroid.MANAGER.register_transform(
+        astroid.FormattedValue, _transform_formatted_value
+    )