target_versions: Set[TargetVersion] = field(default_factory=set)
line_length: int = DEFAULT_LINE_LENGTH
string_normalization: bool = True
+ is_pyi: bool = False
magic_trailing_comma: bool = True
experimental_string_processing: bool = False
- is_pyi: bool = False
def get_cache_key(self) -> str:
if self.target_versions:
str(self.line_length),
str(int(self.string_normalization)),
str(int(self.is_pyi)),
+ str(int(self.magic_trailing_comma)),
+ str(int(self.experimental_string_processing)),
]
return ".".join(parts)
if not fast:
assert_equivalent(src_contents, dst_contents)
- assert_stable(src_contents, dst_contents, mode=mode)
+
+ # Forced second pass to work around optional trailing commas (becoming
+ # forced trailing commas on pass 2) interacting differently with optional
+ # parentheses. Admittedly ugly.
+ dst_contents_pass2 = format_str(dst_contents, mode=mode)
+ if dst_contents != dst_contents_pass2:
+ dst_contents = dst_contents_pass2
+ assert_equivalent(src_contents, dst_contents, pass_num=2)
+ assert_stable(src_contents, dst_contents, mode=mode)
+ # Note: no need to explicitly call `assert_stable` if `dst_contents` was
+ # the same as `dst_contents_pass2`.
return dst_contents
if docstring[0] == quote_char:
docstring = " " + docstring
if docstring[-1] == quote_char:
- docstring = docstring + " "
+ docstring += " "
+ if docstring[-1] == "\\":
+ backslash_count = len(docstring) - len(docstring.rstrip("\\"))
+ if backslash_count % 2:
+ # Odd number of tailing backslashes, add some padding to
+ # avoid escaping the closing string quote.
+ docstring += " "
else:
# Add some padding if the docstring is empty.
docstring = " "
def format_hex(text: str) -> str:
"""
- Formats a hexadecimal string like "0x12b3"
-
- Uses lowercase because of similarity between "B" and "8", which
- can cause security issues.
- see: https://github.com/psf/black/issues/1692
+ Formats a hexadecimal string like "0x12B3"
"""
-
before, after = text[:2], text[2:]
- return f"{before}{after.lower()}"
+ return f"{before}{after.upper()}"
def format_scientific_notation(text: str) -> str:
return False
if is_walrus_assignment(node):
- if parent.type in [syms.annassign, syms.expr_stmt]:
+ if parent.type in [
+ syms.annassign,
+ syms.expr_stmt,
+ syms.assert_stmt,
+ syms.return_stmt,
+ # these ones aren't useful to end users, but they do please fuzzers
+ syms.for_stmt,
+ syms.del_stmt,
+ ]:
return False
first = node.children[0]
# Constant strings may be indented across newlines, if they are
# docstrings; fold spaces after newlines when comparing. Similarly,
# trailing and leading space may be removed.
+ # Note that when formatting Python 2 code, at least with Windows
+ # line-endings, docstrings can end up here as bytes instead of
+ # str so make sure that we handle both cases.
if (
isinstance(node, ast.Constant)
and field == "value"
- and isinstance(value, str)
+ and isinstance(value, (str, bytes))
):
- normalized = re.sub(r" *\n[ \t]*", "\n", value).strip()
+ lineend = "\n" if isinstance(value, str) else b"\n"
+ # To normalize, we strip any leading and trailing space from
+ # each line...
+ stripped = [line.strip() for line in value.splitlines()]
+ normalized = lineend.join(stripped) # type: ignore[attr-defined]
+ # ...and remove any blank lines at the beginning and end of
+ # the whole string
+ normalized = normalized.strip()
else:
normalized = value
yield f"{' ' * (depth+2)}{normalized!r}, # {value.__class__.__name__}"
yield f"{' ' * depth}) # /{node.__class__.__name__}"
-def assert_equivalent(src: str, dst: str) -> None:
+def assert_equivalent(src: str, dst: str, *, pass_num: int = 1) -> None:
"""Raise AssertionError if `src` and `dst` aren't equivalent."""
try:
src_ast = parse_ast(src)
except Exception as exc:
log = dump_to_file("".join(traceback.format_tb(exc.__traceback__)), dst)
raise AssertionError(
- f"INTERNAL ERROR: Black produced invalid code: {exc}. Please report a bug"
- " on https://github.com/psf/black/issues. This invalid output might be"
- f" helpful: {log}"
+ f"INTERNAL ERROR: Black produced invalid code on pass {pass_num}: {exc}. "
+ "Please report a bug on https://github.com/psf/black/issues. "
+ f"This invalid output might be helpful: {log}"
) from None
src_ast_str = "\n".join(_stringify_ast(src_ast))
log = dump_to_file(diff(src_ast_str, dst_ast_str, "src", "dst"))
raise AssertionError(
"INTERNAL ERROR: Black produced code that is not equivalent to the"
- " source. Please report a bug on https://github.com/psf/black/issues. "
- f" This diff might be helpful: {log}"
+ f" source on pass {pass_num}. Please report a bug on "
+ f"https://github.com/psf/black/issues. This diff might be helpful: {log}"
) from None
projects / etc / vim.git / blobdiff