`from __future__ import annotations` now implies 3.7+ (#2690)

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

diff --git a/src/blib2to3/pytree.py b/src/blib2to3/pytree.py
index 6dba3c7bb15880cdb5a039f804de6331d91dbcbf..bd86270b8e232d1230fde477b38ff4ca2836d710 100644 (file)
--- a/src/blib2to3/pytree.py
+++ b/src/blib2to3/pytree.py
@@ -14,7 +14,6 @@ There's also a pattern matching implementation here.
 
 from typing import (
     Any,
 
 from typing import (
     Any,

-    Callable,

     Dict,
     Iterator,
     List,
     Dict,
     Iterator,
     List,


@@ -25,7 +24,6 @@ from typing import (
     Union,
     Set,
     Iterable,
     Union,
     Set,
     Iterable,

-    Sequence,

 )
 from blib2to3.pgen2.grammar import Grammar
 
 )
 from blib2to3.pgen2.grammar import Grammar
 


@@ -34,7 +32,7 @@ __author__ = "Guido van Rossum <guido@python.org>"
 import sys
 from io import StringIO
 
 import sys
 from io import StringIO
 

-HUGE: int = 0x7fffffff  # maximum repeat count, default max
+HUGE: int = 0x7FFFFFFF  # maximum repeat count, default max

 
 _type_reprs: Dict[int, Union[Text, int]] = {}
 
 
 _type_reprs: Dict[int, Union[Text, int]] = {}
 


@@ -53,7 +51,7 @@ def type_repr(type_num: int) -> Union[Text, int]:
     return _type_reprs.setdefault(type_num, type_num)
 
 
     return _type_reprs.setdefault(type_num, type_num)
 
 

-_P = TypeVar("_P")
+_P = TypeVar("_P", bound="Base")

 
 NL = Union["Node", "Leaf"]
 Context = Tuple[Text, Tuple[int, int]]
 
 NL = Union["Node", "Leaf"]
 Context = Tuple[Text, Tuple[int, int]]


@@ -93,8 +91,6 @@ class Base(object):
             return NotImplemented
         return self._eq(other)
 
             return NotImplemented
         return self._eq(other)
 

-    __hash__ = None  # type: Any  # For Py3 compatibility.
-

     @property
     def prefix(self) -> Text:
         raise NotImplementedError
     @property
     def prefix(self) -> Text:
         raise NotImplementedError


@@ -110,6 +106,9 @@ class Base(object):
         """
         raise NotImplementedError
 
         """
         raise NotImplementedError
 

+    def __deepcopy__(self: _P, memo: Any) -> _P:
+        return self.clone()
+

     def clone(self: _P) -> _P:
         """
         Return a cloned (deep) copy of self.
     def clone(self: _P) -> _P:
         """
         Return a cloned (deep) copy of self.


@@ -435,7 +434,7 @@ class Leaf(Base):
 
         This reproduces the input source exactly.
         """
 
         This reproduces the input source exactly.
         """

-        return self.prefix + str(self.value)
+        return self._prefix + str(self.value)

 
     def _eq(self, other) -> bool:
         """Compare two nodes for equality."""
 
     def _eq(self, other) -> bool:
         """Compare two nodes for equality."""


@@ -670,8 +669,11 @@ class NodePattern(BasePattern):
             newcontent = list(content)
             for i, item in enumerate(newcontent):
                 assert isinstance(item, BasePattern), (i, item)
             newcontent = list(content)
             for i, item in enumerate(newcontent):
                 assert isinstance(item, BasePattern), (i, item)

-                if isinstance(item, WildcardPattern):
-                    self.wildcards = True
+                # I don't even think this code is used anywhere, but it does cause
+                # unreachable errors from mypy. This function's signature does look
+                # odd though *shrug*.
+                if isinstance(item, WildcardPattern):  # type: ignore[unreachable]
+                    self.wildcards = True  # type: ignore[unreachable]

         self.type = type
         self.content = newcontent
         self.name = name
         self.type = type
         self.content = newcontent
         self.name = name


@@ -976,6 +978,3 @@ def generate_matches(
                     r.update(r0)
                     r.update(r1)
                     yield c0 + c1, r
                     r.update(r0)
                     r.update(r1)
                     yield c0 + c1, r

-
-
-_Convert = Callable[[Grammar, RawNode], Any]