X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/7d032fa848c8910007a0a41c1ba61d70d2846f48..c97b9c55b488a478afe171537c0e4c0f10631ca1:/src/blib2to3/pytree.py diff --git a/src/blib2to3/pytree.py b/src/blib2to3/pytree.py index 6dba3c7..ea60c89 100644 --- a/src/blib2to3/pytree.py +++ b/src/blib2to3/pytree.py @@ -10,11 +10,10 @@ even the comments and whitespace between tokens. There's also a pattern matching implementation here. """ -# mypy: allow-untyped-defs +# mypy: allow-untyped-defs, allow-incomplete-defs from typing import ( Any, - Callable, Dict, Iterator, List, @@ -25,7 +24,6 @@ from typing import ( Union, Set, Iterable, - Sequence, ) from blib2to3.pgen2.grammar import Grammar @@ -34,7 +32,7 @@ __author__ = "Guido van Rossum " 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]] = {} @@ -53,7 +51,7 @@ def type_repr(type_num: int) -> Union[Text, int]: 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]] @@ -93,8 +91,6 @@ class Base(object): return NotImplemented return self._eq(other) - __hash__ = None # type: Any # For Py3 compatibility. - @property def prefix(self) -> Text: raise NotImplementedError @@ -110,6 +106,9 @@ class Base(object): """ raise NotImplementedError + def __deepcopy__(self: _P, memo: Any) -> _P: + return self.clone() + def clone(self: _P) -> _P: """ Return a cloned (deep) copy of self. @@ -292,7 +291,7 @@ class Node(Base): """ 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) @@ -327,7 +326,7 @@ class Node(Base): 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 @@ -387,11 +386,16 @@ class Leaf(Base): value: Text fixers_applied: List[Any] bracket_depth: int - opening_bracket: "Leaf" + # Changed later in brackets.py + opening_bracket: Optional["Leaf"] = None used_names: Optional[Set[Text]] _prefix = "" # Whitespace and comments preceding this token in the input lineno: int = 0 # Line where this token starts in the input column: int = 0 # Column where this token starts in the input + # If not None, this Leaf is created by converting a block of fmt off/skip + # code, and `fmt_pass_converted_first_leaf` points to the first Leaf in the + # converted code. + fmt_pass_converted_first_leaf: Optional["Leaf"] = None def __init__( self, @@ -400,6 +404,8 @@ class Leaf(Base): context: Optional[Context] = None, prefix: Optional[Text] = None, fixers_applied: List[Any] = [], + opening_bracket: Optional["Leaf"] = None, + fmt_pass_converted_first_leaf: Optional["Leaf"] = None, ) -> None: """ Initializer. @@ -417,6 +423,8 @@ class Leaf(Base): self._prefix = prefix self.fixers_applied: Optional[List[Any]] = fixers_applied[:] self.children = [] + self.opening_bracket = opening_bracket + self.fmt_pass_converted_first_leaf = fmt_pass_converted_first_leaf def __repr__(self) -> str: """Return a canonical string representation.""" @@ -435,9 +443,9 @@ class Leaf(Base): This reproduces the input source exactly. """ - 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) @@ -470,7 +478,7 @@ class Leaf(Base): return self._prefix @prefix.setter - def prefix(self, prefix) -> None: + def prefix(self, prefix: Text) -> None: self.changed() self._prefix = prefix @@ -616,7 +624,7 @@ class LeafPattern(BasePattern): 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 @@ -670,10 +678,13 @@ class NodePattern(BasePattern): 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.content = newcontent # TODO: this is unbound when content is None self.name = name def _submatch(self, node, results=None) -> bool: @@ -915,7 +926,7 @@ class WildcardPattern(BasePattern): class NegatedPattern(BasePattern): - def __init__(self, content: Optional[Any] = None) -> None: + def __init__(self, content: Optional[BasePattern] = None) -> None: """ Initializer. @@ -936,7 +947,7 @@ class NegatedPattern(BasePattern): # 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: @@ -976,6 +987,3 @@ def generate_matches( r.update(r0) r.update(r1) yield c0 + c1, r - - -_Convert = Callable[[Grammar, RawNode], Any]