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Bump docker/setup-qemu-action from 2 to 3 (#3890)
[etc/vim.git] / src / black / brackets.py
index ec9708cb08a214d55b8680ac07dd0ebf0fde413a..85dac6edd1eaa1e86a7c4f08f09d8a7aec4752dc 100644 (file)
@@ -1,13 +1,7 @@
 """Builds on top of nodes.py to track brackets."""
 
 """Builds on top of nodes.py to track brackets."""
 
-import sys
 from dataclasses import dataclass, field
 from dataclasses import dataclass, field
-from typing import Dict, Iterable, List, Optional, Sequence, Set, Tuple, Union
-
-if sys.version_info < (3, 8):
-    from typing_extensions import Final
-else:
-    from typing import Final
+from typing import Dict, Final, Iterable, List, Optional, Sequence, Set, Tuple, Union
 
 from black.nodes import (
     BRACKET,
 
 from black.nodes import (
     BRACKET,
@@ -80,9 +74,12 @@ class BracketTracker:
         within brackets a given leaf is. 0 means there are no enclosing brackets
         that started on this line.
 
         within brackets a given leaf is. 0 means there are no enclosing brackets
         that started on this line.
 
-        If a leaf is itself a closing bracket, it receives an `opening_bracket`
-        field that it forms a pair with. This is a one-directional link to
-        avoid reference cycles.
+        If a leaf is itself a closing bracket and there is a matching opening
+        bracket earlier, it receives an `opening_bracket` field with which it forms a
+        pair. This is a one-directional link to avoid reference cycles. Closing
+        bracket without opening happens on lines continued from previous
+        breaks, e.g. `) -> "ReturnType":` as part of a funcdef where we place
+        the return type annotation on its own line of the previous closing RPAR.
 
         If a leaf is a delimiter (a token on which Black can split the line if
         needed) and it's on depth 0, its `id()` is stored in the tracker's
 
         If a leaf is a delimiter (a token on which Black can split the line if
         needed) and it's on depth 0, its `id()` is stored in the tracker's
@@ -91,6 +88,13 @@ class BracketTracker:
         if leaf.type == token.COMMENT:
             return
 
         if leaf.type == token.COMMENT:
             return
 
+        if (
+            self.depth == 0
+            and leaf.type in CLOSING_BRACKETS
+            and (self.depth, leaf.type) not in self.bracket_match
+        ):
+            return
+
         self.maybe_decrement_after_for_loop_variable(leaf)
         self.maybe_decrement_after_lambda_arguments(leaf)
         if leaf.type in CLOSING_BRACKETS:
         self.maybe_decrement_after_for_loop_variable(leaf)
         self.maybe_decrement_after_lambda_arguments(leaf)
         if leaf.type in CLOSING_BRACKETS: