get_string_prefix,
normalize_string_prefix,
normalize_string_quotes,
+ normalize_unicode_escape_sequences,
)
from black.trans import (
CannotTransform,
"""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, preview=self.mode.preview):
+ for comment in generate_comments(node):
if any_open_brackets:
# any comment within brackets is subject to splitting
self.current_line.append(comment)
def visit_funcdef(self, node: Node) -> Iterator[Line]:
"""Visit function definition."""
- if Preview.annotation_parens not in self.mode:
- yield from self.visit_stmt(node, keywords={"def"}, parens=set())
- else:
- yield from self.line()
+ yield from self.line()
- # Remove redundant brackets around return type annotation.
- is_return_annotation = False
- for child in node.children:
- if child.type == token.RARROW:
- is_return_annotation = True
- elif is_return_annotation:
- if child.type == syms.atom and child.children[0].type == token.LPAR:
- if maybe_make_parens_invisible_in_atom(
- child,
- parent=node,
- remove_brackets_around_comma=False,
- ):
- wrap_in_parentheses(node, child, visible=False)
- else:
+ # Remove redundant brackets around return type annotation.
+ is_return_annotation = False
+ for child in node.children:
+ if child.type == token.RARROW:
+ is_return_annotation = True
+ elif is_return_annotation:
+ if child.type == syms.atom and child.children[0].type == token.LPAR:
+ if maybe_make_parens_invisible_in_atom(
+ child,
+ parent=node,
+ remove_brackets_around_comma=False,
+ ):
wrap_in_parentheses(node, child, visible=False)
- is_return_annotation = False
+ else:
+ wrap_in_parentheses(node, child, visible=False)
+ is_return_annotation = False
- for child in node.children:
- yield from self.visit(child)
+ for child in node.children:
+ yield from self.visit(child)
def visit_match_case(self, node: Node) -> Iterator[Line]:
"""Visit either a match or case statement."""
):
wrap_in_parentheses(node, leaf)
- if Preview.remove_redundant_parens in self.mode:
- remove_await_parens(node)
+ remove_await_parens(node)
yield from self.visit_default(node)
yield from self.visit_default(node)
def visit_STRING(self, leaf: Leaf) -> Iterator[Line]:
+ if Preview.hex_codes_in_unicode_sequences in self.mode:
+ normalize_unicode_escape_sequences(leaf)
+
if is_docstring(leaf) and "\\\n" not in leaf.value:
# We're ignoring docstrings with backslash newline escapes because changing
# indentation of those changes the AST representation of the code.
- if Preview.normalize_docstring_quotes_and_prefixes_properly in self.mode:
- # There was a bug where --skip-string-normalization wouldn't stop us
- # from normalizing docstring prefixes. To maintain stability, we can
- # only address this buggy behaviour while the preview style is enabled.
- if self.mode.string_normalization:
- docstring = normalize_string_prefix(leaf.value)
- # visit_default() does handle string normalization for us, but
- # since this method acts differently depending on quote style (ex.
- # see padding logic below), there's a possibility for unstable
- # formatting as visit_default() is called *after*. To avoid a
- # situation where this function formats a docstring differently on
- # the second pass, normalize it early.
- docstring = normalize_string_quotes(docstring)
- else:
- docstring = leaf.value
- else:
- # ... otherwise, we'll keep the buggy behaviour >.<
+ if self.mode.string_normalization:
docstring = normalize_string_prefix(leaf.value)
+ # visit_default() does handle string normalization for us, but
+ # since this method acts differently depending on quote style (ex.
+ # see padding logic below), there's a possibility for unstable
+ # formatting as visit_default() is called *after*. To avoid a
+ # situation where this function formats a docstring differently on
+ # the second pass, normalize it early.
+ docstring = normalize_string_quotes(docstring)
+ else:
+ docstring = leaf.value
prefix = get_string_prefix(docstring)
docstring = docstring[len(prefix) :] # Remove the prefix
quote_char = docstring[0]
quote = quote_char * quote_len
# It's invalid to put closing single-character quotes on a new line.
- if Preview.long_docstring_quotes_on_newline in self.mode and quote_len == 3:
+ if self.mode and quote_len == 3:
# We need to find the length of the last line of the docstring
# to find if we can add the closing quotes to the line without
# exceeding the maximum line length.
self.visit_try_stmt = partial(
v, keywords={"try", "except", "else", "finally"}, parens=Ø
)
- if self.mode.preview:
- self.visit_except_clause = partial(
- v, keywords={"except"}, parens={"except"}
- )
- self.visit_with_stmt = partial(v, keywords={"with"}, parens={"with"})
- else:
- self.visit_except_clause = partial(v, keywords={"except"}, parens=Ø)
- self.visit_with_stmt = partial(v, keywords={"with"}, parens=Ø)
+ self.visit_except_clause = partial(v, keywords={"except"}, parens={"except"})
+ self.visit_with_stmt = partial(v, keywords={"with"}, parens={"with"})
self.visit_classdef = partial(v, keywords={"class"}, parens=Ø)
self.visit_expr_stmt = partial(v, keywords=Ø, parens=ASSIGNMENTS)
self.visit_return_stmt = partial(v, keywords={"return"}, parens={"return"})
else:
def _rhs(
- self: object, line: Line, features: Collection[Feature]
+ self: object, line: Line, features: Collection[Feature], mode: Mode
) -> Iterator[Line]:
"""Wraps calls to `right_hand_split`.
tail = auto()
-def left_hand_split(line: Line, _features: Collection[Feature] = ()) -> Iterator[Line]:
+def left_hand_split(
+ line: Line, _features: Collection[Feature], mode: Mode
+) -> Iterator[Line]:
"""Split line into many lines, starting with the first matching bracket pair.
Note: this usually looks weird, only use this for function definitions.
# the split is right after `=`
and len(rhs.head.leaves) >= 2
and rhs.head.leaves[-2].type == token.EQUAL
- # the left side of assignement contains brackets
+ # the left side of assignment contains brackets
and any(leaf.type in BRACKETS for leaf in rhs.head.leaves[:-1])
# the left side of assignment is short enough (the -1 is for the ending
# optional paren)
break
leaves_to_track: Set[LeafID] = set()
- if (
- Preview.handle_trailing_commas_in_head in original.mode
- and component is _BracketSplitComponent.head
- ):
+ if component is _BracketSplitComponent.head:
leaves_to_track = get_leaves_inside_matching_brackets(leaves)
# Populate the line
for leaf in leaves:
"""
@wraps(split_func)
- def split_wrapper(line: Line, features: Collection[Feature] = ()) -> Iterator[Line]:
- for split_line in split_func(line, features):
+ def split_wrapper(
+ line: Line, features: Collection[Feature], mode: Mode
+ ) -> Iterator[Line]:
+ for split_line in split_func(line, features, mode):
normalize_prefix(split_line.leaves[0], inside_brackets=True)
yield split_line
return split_wrapper
+def _get_last_non_comment_leaf(line: Line) -> Optional[int]:
+ for leaf_idx in range(len(line.leaves) - 1, 0, -1):
+ if line.leaves[leaf_idx].type != STANDALONE_COMMENT:
+ return leaf_idx
+ return None
+
+
+def _safe_add_trailing_comma(safe: bool, delimiter_priority: int, line: Line) -> Line:
+ if (
+ safe
+ and delimiter_priority == COMMA_PRIORITY
+ and line.leaves[-1].type != token.COMMA
+ and line.leaves[-1].type != STANDALONE_COMMENT
+ ):
+ new_comma = Leaf(token.COMMA, ",")
+ line.append(new_comma)
+ return line
+
+
@dont_increase_indentation
-def delimiter_split(line: Line, features: Collection[Feature] = ()) -> Iterator[Line]:
+def delimiter_split(
+ line: Line, features: Collection[Feature], mode: Mode
+) -> Iterator[Line]:
"""Split according to delimiters of the highest priority.
If the appropriate Features are given, the split will add trailing commas
)
current_line.append(leaf)
- for leaf in line.leaves:
+ last_non_comment_leaf = _get_last_non_comment_leaf(line)
+ for leaf_idx, leaf in enumerate(line.leaves):
yield from append_to_line(leaf)
for comment_after in line.comments_after(leaf):
trailing_comma_safe and Feature.TRAILING_COMMA_IN_CALL in features
)
+ if (
+ Preview.add_trailing_comma_consistently in mode
+ and last_leaf.type == STANDALONE_COMMENT
+ and leaf_idx == last_non_comment_leaf
+ ):
+ current_line = _safe_add_trailing_comma(
+ trailing_comma_safe, delimiter_priority, current_line
+ )
+
leaf_priority = bt.delimiters.get(id(leaf))
if leaf_priority == delimiter_priority:
yield current_line
mode=line.mode, depth=line.depth, inside_brackets=line.inside_brackets
)
if current_line:
- if (
- trailing_comma_safe
- and delimiter_priority == COMMA_PRIORITY
- and current_line.leaves[-1].type != token.COMMA
- and current_line.leaves[-1].type != STANDALONE_COMMENT
- ):
- new_comma = Leaf(token.COMMA, ",")
- current_line.append(new_comma)
+ current_line = _safe_add_trailing_comma(
+ trailing_comma_safe, delimiter_priority, current_line
+ )
yield current_line
@dont_increase_indentation
def standalone_comment_split(
- line: Line, features: Collection[Feature] = ()
+ line: Line, features: Collection[Feature], mode: Mode
) -> Iterator[Line]:
"""Split standalone comments from the rest of the line."""
if not line.contains_standalone_comments(0):
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, preview=mode.preview):
+ for pc in list_comments(node.prefix, is_endmarker=False):
if pc.value in FMT_OFF:
# This `node` has a prefix with `# fmt: off`, don't mess with parens.
return
if check_lpar:
if (
- mode.preview
- and child.type == syms.atom
+ child.type == syms.atom
and node.type == syms.for_stmt
and isinstance(child.prev_sibling, Leaf)
and child.prev_sibling.type == token.NAME
remove_brackets_around_comma=True,
):
wrap_in_parentheses(node, child, visible=False)
- elif (
- mode.preview and isinstance(child, Node) and node.type == syms.with_stmt
- ):
+ elif isinstance(child, Node) and node.type == syms.with_stmt:
remove_with_parens(child, node)
elif child.type == syms.atom:
if maybe_make_parens_invisible_in_atom(
elif not (isinstance(child, Leaf) and is_multiline_string(child)):
wrap_in_parentheses(node, child, visible=False)
- comma_check = child.type == token.COMMA if mode.preview else False
+ comma_check = child.type == token.COMMA
check_lpar = isinstance(child, Leaf) and (
child.value in parens_after or comma_check
# N.B. We've still removed any redundant nested brackets though :)
opening_bracket = cast(Leaf, node.children[1].children[0])
closing_bracket = cast(Leaf, node.children[1].children[-1])
- bracket_contents = cast(Node, node.children[1].children[1])
- if bracket_contents.type != syms.power:
- ensure_visible(opening_bracket)
- ensure_visible(closing_bracket)
- elif (
- bracket_contents.type == syms.power
- and bracket_contents.children[0].type == token.AWAIT
- ):
- ensure_visible(opening_bracket)
- ensure_visible(closing_bracket)
- # If we are in a nested await then recurse down.
- remove_await_parens(bracket_contents)
+ bracket_contents = node.children[1].children[1]
+ if isinstance(bracket_contents, Node):
+ if bracket_contents.type != syms.power:
+ ensure_visible(opening_bracket)
+ ensure_visible(closing_bracket)
+ elif (
+ bracket_contents.type == syms.power
+ and bracket_contents.children[0].type == token.AWAIT
+ ):
+ ensure_visible(opening_bracket)
+ ensure_visible(closing_bracket)
+ # If we are in a nested await then recurse down.
+ remove_await_parens(bracket_contents)
def _maybe_wrap_cms_in_parens(
if not line_str:
line_str = line_to_string(line)
result: List[Line] = []
- for transformed_line in transform(line, features):
+ for transformed_line in transform(line, features, mode):
if str(transformed_line).strip("\n") == line_str:
raise CannotTransform("Line transformer returned an unchanged result")
projects / etc / vim.git / blobdiff