]> git.madduck.net Git - etc/vim.git/blobdiff - src/black/nodes.py

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

Implementing mypyc support pt. 2 (#2431)
[etc/vim.git] / src / black / nodes.py
index 8f2e15b2cc3013926bc0636c05995749645f8b20..36dd18905114506ec0cac5c920dea482b02899b0 100644 (file)
@@ -15,10 +15,12 @@ from typing import (
     Union,
 )
 
-if sys.version_info < (3, 8):
-    from typing_extensions import Final
-else:
+if sys.version_info >= (3, 8):
     from typing import Final
+else:
+    from typing_extensions import Final
+
+from mypy_extensions import mypyc_attr
 
 # lib2to3 fork
 from blib2to3.pytree import Node, Leaf, type_repr
@@ -30,7 +32,7 @@ from black.strings import has_triple_quotes
 
 
 pygram.initialize(CACHE_DIR)
-syms = pygram.python_symbols
+syms: Final = pygram.python_symbols
 
 
 # types
@@ -128,16 +130,21 @@ ASSIGNMENTS: Final = {
     "//=",
 }
 
-IMPLICIT_TUPLE = {syms.testlist, syms.testlist_star_expr, syms.exprlist}
-BRACKET = {token.LPAR: token.RPAR, token.LSQB: token.RSQB, token.LBRACE: token.RBRACE}
-OPENING_BRACKETS = set(BRACKET.keys())
-CLOSING_BRACKETS = set(BRACKET.values())
-BRACKETS = OPENING_BRACKETS | CLOSING_BRACKETS
-ALWAYS_NO_SPACE = CLOSING_BRACKETS | {token.COMMA, STANDALONE_COMMENT}
+IMPLICIT_TUPLE: Final = {syms.testlist, syms.testlist_star_expr, syms.exprlist}
+BRACKET: Final = {
+    token.LPAR: token.RPAR,
+    token.LSQB: token.RSQB,
+    token.LBRACE: token.RBRACE,
+}
+OPENING_BRACKETS: Final = set(BRACKET.keys())
+CLOSING_BRACKETS: Final = set(BRACKET.values())
+BRACKETS: Final = OPENING_BRACKETS | CLOSING_BRACKETS
+ALWAYS_NO_SPACE: Final = CLOSING_BRACKETS | {token.COMMA, STANDALONE_COMMENT}
 
 RARROW = 55
 
 
+@mypyc_attr(allow_interpreted_subclasses=True)
 class Visitor(Generic[T]):
     """Basic lib2to3 visitor that yields things of type `T` on `visit()`."""
 
@@ -178,9 +185,9 @@ def whitespace(leaf: Leaf, *, complex_subscript: bool) -> str:  # noqa: C901
     `complex_subscript` signals whether the given leaf is part of a subscription
     which has non-trivial arguments, like arithmetic expressions or function calls.
     """
-    NO = ""
-    SPACE = " "
-    DOUBLESPACE = "  "
+    NO: Final = ""
+    SPACE: Final = " "
+    DOUBLESPACE: Final = "  "
     t = leaf.type
     p = leaf.parent
     v = leaf.value
@@ -441,8 +448,8 @@ def prev_siblings_are(node: Optional[LN], tokens: List[Optional[NodeType]]) -> b
 
 def last_two_except(leaves: List[Leaf], omit: Collection[LeafID]) -> Tuple[Leaf, Leaf]:
     """Return (penultimate, last) leaves skipping brackets in `omit` and contents."""
-    stop_after = None
-    last = None
+    stop_after: Optional[Leaf] = None
+    last: Optional[Leaf] = None
     for leaf in reversed(leaves):
         if stop_after:
             if leaf is stop_after: