"""Default `visit_*()` implementation. Recurses to children of `node`."""
if isinstance(node, Leaf):
any_open_brackets = self.current_line.bracket_tracker.any_open_brackets()
- for comment in generate_comments(node):
+ for comment in generate_comments(node, preview=self.mode.preview):
if any_open_brackets:
# any comment within brackets is subject to splitting
self.current_line.append(comment)
`parens` holds a set of string leaf values immediately after which
invisible parens should be put.
"""
- normalize_invisible_parens(node, parens_after=parens)
+ normalize_invisible_parens(node, parens_after=parens, preview=self.mode.preview)
for child in node.children:
if is_name_token(child) and child.value in keywords:
yield from self.line()
def visit_match_case(self, node: Node) -> Iterator[Line]:
"""Visit either a match or case statement."""
- normalize_invisible_parens(node, parens_after=set())
+ normalize_invisible_parens(node, parens_after=set(), preview=self.mode.preview)
yield from self.line()
for child in node.children:
leaf.prefix = ""
-def normalize_invisible_parens(node: Node, parens_after: Set[str]) -> None:
+def normalize_invisible_parens(
+ node: Node, parens_after: Set[str], *, preview: bool
+) -> None:
"""Make existing optional parentheses invisible or create new ones.
`parens_after` is a set of string leaf values immediately after which parens
Standardizes on visible parentheses for single-element tuples, and keeps
existing visible parentheses for other tuples and generator expressions.
"""
- for pc in list_comments(node.prefix, is_endmarker=False):
+ for pc in list_comments(node.prefix, is_endmarker=False, preview=preview):
if pc.value in FMT_OFF:
# This `node` has a prefix with `# fmt: off`, don't mess with parens.
return
# Fixes a bug where invisible parens are not properly stripped from
# assignment statements that contain type annotations.
if isinstance(child, Node) and child.type == syms.annassign:
- normalize_invisible_parens(child, parens_after=parens_after)
+ normalize_invisible_parens(
+ child, parens_after=parens_after, preview=preview
+ )
# Add parentheses around long tuple unpacking in assignments.
if (