Fix an infinite recursion error exposed by #3440 (#3444)

[etc/vim.git] / src / blib2to3 / pytree.py

diff --git a/src/blib2to3/pytree.py b/src/blib2to3/pytree.py
index 10b4690218e50209b5b00cce54195cd76112bb44..15a1420ef7d6f3c3c6054bfbbbf90040d9aa6f4b 100644 (file)
--- a/src/blib2to3/pytree.py
+++ b/src/blib2to3/pytree.py
@@ -10,7 +10,7 @@ even the comments and whitespace between tokens.
 There's also a pattern matching implementation here.
 """
 
 There's also a pattern matching implementation here.
 """
 

-# mypy: allow-untyped-defs
+# mypy: allow-untyped-defs, allow-incomplete-defs

 
 from typing import (
     Any,
 
 from typing import (
     Any,


@@ -291,7 +291,7 @@ class Node(Base):
         """
         return "".join(map(str, self.children))
 
         """
         return "".join(map(str, self.children))
 

-    def _eq(self, other) -> bool:
+    def _eq(self, other: Base) -> bool:

         """Compare two nodes for equality."""
         return (self.type, self.children) == (other.type, other.children)
 
         """Compare two nodes for equality."""
         return (self.type, self.children) == (other.type, other.children)
 


@@ -326,7 +326,7 @@ class Node(Base):
         return self.children[0].prefix
 
     @prefix.setter
         return self.children[0].prefix
 
     @prefix.setter

-    def prefix(self, prefix) -> None:
+    def prefix(self, prefix: Text) -> None:

         if self.children:
             self.children[0].prefix = prefix
 
         if self.children:
             self.children[0].prefix = prefix
 


@@ -439,7 +439,7 @@ class Leaf(Base):
         """
         return self._prefix + str(self.value)
 
         """
         return self._prefix + str(self.value)
 

-    def _eq(self, other) -> bool:
+    def _eq(self, other: "Leaf") -> bool:

         """Compare two nodes for equality."""
         return (self.type, self.value) == (other.type, other.value)
 
         """Compare two nodes for equality."""
         return (self.type, self.value) == (other.type, other.value)
 


@@ -472,7 +472,7 @@ class Leaf(Base):
         return self._prefix
 
     @prefix.setter
         return self._prefix
 
     @prefix.setter

-    def prefix(self, prefix) -> None:
+    def prefix(self, prefix: Text) -> None:

         self.changed()
         self._prefix = prefix
 
         self.changed()
         self._prefix = prefix
 


@@ -618,7 +618,7 @@ class LeafPattern(BasePattern):
         self.content = content
         self.name = name
 
         self.content = content
         self.name = name
 

-    def match(self, node: NL, results=None):
+    def match(self, node: NL, results=None) -> bool:

         """Override match() to insist on a leaf node."""
         if not isinstance(node, Leaf):
             return False
         """Override match() to insist on a leaf node."""
         if not isinstance(node, Leaf):
             return False


@@ -678,7 +678,7 @@ class NodePattern(BasePattern):
                 if isinstance(item, WildcardPattern):  # type: ignore[unreachable]
                     self.wildcards = True  # type: ignore[unreachable]
         self.type = type
                 if isinstance(item, WildcardPattern):  # type: ignore[unreachable]
                     self.wildcards = True  # type: ignore[unreachable]
         self.type = type

-        self.content = newcontent
+        self.content = newcontent  # TODO: this is unbound when content is None

         self.name = name
 
     def _submatch(self, node, results=None) -> bool:
         self.name = name
 
     def _submatch(self, node, results=None) -> bool:


@@ -920,7 +920,7 @@ class WildcardPattern(BasePattern):
 
 
 class NegatedPattern(BasePattern):
 
 
 class NegatedPattern(BasePattern):

-    def __init__(self, content: Optional[Any] = None) -> None:
+    def __init__(self, content: Optional[BasePattern] = None) -> None:

         """
         Initializer.
 
         """
         Initializer.
 


@@ -941,7 +941,7 @@ class NegatedPattern(BasePattern):
         # We only match an empty sequence of nodes in its entirety
         return len(nodes) == 0
 
         # We only match an empty sequence of nodes in its entirety
         return len(nodes) == 0
 

-    def generate_matches(self, nodes) -> Iterator[Tuple[int, _Results]]:
+    def generate_matches(self, nodes: List[NL]) -> Iterator[Tuple[int, _Results]]:

         if self.content is None:
             # Return a match if there is an empty sequence
             if len(nodes) == 0:
         if self.content is None:
             # Return a match if there is an empty sequence
             if len(nodes) == 0: