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No newline after function docstrings (#8375)

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Fixup for #8216 to not apply to function docstrings.

Main before #8216:

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75804 | 1799 | 1648 |
| django | 0.99984 | 2772 | 33 |
| home-assistant | 0.99963 | 10596 | 148 |
| poetry | 0.99925 | 317 | 12 |
| transformers | 0.99967 | 2657 | 328 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99980 | 3669 | 18 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 22 |

main now:

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75804 | 1799 | 1648 |
| django | 0.99984 | 2772 | 48 |
| home-assistant | 0.99963 | 10596 | 181 |
| poetry | 0.99925 | 317 | 12 |
| transformers | 0.99967 | 2657 | 339 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99980 | 3669 | 18 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 23 |

PR:

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75804 | 1799 | 1648 |
| django | 0.99984 | 2772 | 33 |
| home-assistant | 0.99963 | 10596 | 148 |
| poetry | 0.99925 | 317 | 12 |
| transformers | 0.99967 | 2657 | 328 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99980 | 3669 | 18 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 22 |
This commit is contained in:
konsti 2023-10-31 19:32:15 +01:00 • committed by GitHub
parent 23ed4e9616
commit 3076d76b0a
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 82 additions and 34 deletions
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7
crates/ruff_python_formatter/resources/test/fixtures/ruff/docstring.py vendored
View file

@ -136,6 +136,13 @@ class CommentAfterDocstring5:
# This class is also the base class for pathbrowser.PathBrowser.
def f():
"""Browse module classes and functions in IDLE."""
# ^ Do not insert a newline above here
pass
class TabbedIndent:
def tabbed_indent(self):
"""check for correct tabbed formatting

34
crates/ruff_python_formatter/src/statement/suite.rs
View file

@ -89,7 +89,7 @@ impl FormatRule<Suite, PyFormatContext<'_>> for FormatSuite {
}
SuiteKind::Function => {
if let Some(docstring) = DocstringStmt::try_from_statement(first) {
if let Some(docstring) = DocstringStmt::try_from_statement(first, self.kind) {
SuiteChildStatement::Docstring(docstring)
} else {
SuiteChildStatement::Other(first)
@ -97,7 +97,7 @@ impl FormatRule<Suite, PyFormatContext<'_>> for FormatSuite {
}
SuiteKind::Class => {
if let Some(docstring) = DocstringStmt::try_from_statement(first) {
if let Some(docstring) = DocstringStmt::try_from_statement(first, self.kind) {
if !comments.has_leading(first)
&& lines_before(first.start(), source) > 1
&& !source_type.is_stub()
@ -150,7 +150,7 @@ impl FormatRule<Suite, PyFormatContext<'_>> for FormatSuite {
true
} else if f.options().preview().is_enabled()
&& self.kind == SuiteKind::TopLevel
&& DocstringStmt::try_from_statement(first.statement()).is_some()
&& DocstringStmt::try_from_statement(first.statement(), self.kind).is_some()
{
// Only in preview mode, insert a newline after a module level docstring, but treat
// it as a docstring otherwise. See: https://github.com/psf/black/pull/3932.
@ -543,17 +543,25 @@ impl<'ast> IntoFormat<PyFormatContext<'ast>> for Suite {
/// A statement representing a docstring.
#[derive(Copy, Clone, Debug)]
pub(crate) struct DocstringStmt<'a>(&'a Stmt);
pub(crate) struct DocstringStmt<'a> {
/// The [`Stmt::Expr`]
docstring: &'a Stmt,
/// The parent suite kind
suite_kind: SuiteKind,
}
impl<'a> DocstringStmt<'a> {
/// Checks if the statement is a simple string that can be formatted as a docstring
fn try_from_statement(stmt: &'a Stmt) -> Option<DocstringStmt<'a>> {
fn try_from_statement(stmt: &'a Stmt, suite_kind: SuiteKind) -> Option<DocstringStmt<'a>> {
let Stmt::Expr(ast::StmtExpr { value, .. }) = stmt else {
return None;
};
match value.as_ref() {
Expr::StringLiteral(value) if !value.implicit_concatenated => Some(DocstringStmt(stmt)),
Expr::StringLiteral(value) if !value.implicit_concatenated => Some(DocstringStmt {
docstring: stmt,
suite_kind,
}),
_ => None,
}
}
@ -562,14 +570,14 @@ impl<'a> DocstringStmt<'a> {
impl Format<PyFormatContext<'_>> for DocstringStmt<'_> {
fn fmt(&self, f: &mut Formatter<PyFormatContext<'_>>) -> FormatResult<()> {
let comments = f.context().comments().clone();
let node_comments = comments.leading_dangling_trailing(self.0);
let node_comments = comments.leading_dangling_trailing(self.docstring);
if FormatStmtExpr.is_suppressed(node_comments.trailing, f.context()) {
suppressed_node(self.0).fmt(f)
suppressed_node(self.docstring).fmt(f)
} else {
// SAFETY: Safe because `DocStringStmt` guarantees that it only ever wraps a `ExprStmt` containing a `ExprStringLiteral`.
let string_literal = self
.0
.docstring
.as_expr_stmt()
.unwrap()
.value
@ -587,8 +595,9 @@ impl Format<PyFormatContext<'_>> for DocstringStmt<'_> {
]
)?;
// Comments after docstrings need a newline between the docstring and the comment.
// (https://github.com/astral-sh/ruff/issues/7948)
if self.suite_kind == SuiteKind::Class {
// Comments after class docstrings need a newline between the docstring and the
// comment (https://github.com/astral-sh/ruff/issues/7948).
// ```python
// class ModuleBrowser:
// """Browse module classes and functions in IDLE."""
@ -606,6 +615,7 @@ impl Format<PyFormatContext<'_>> for DocstringStmt<'_> {
empty_line().fmt(f)?;
}
}
}
trailing_comments(node_comments.trailing).fmt(f)
}
@ -625,7 +635,7 @@ pub(crate) enum SuiteChildStatement<'a> {
impl<'a> SuiteChildStatement<'a> {
pub(crate) const fn statement(self) -> &'a Stmt {
match self {
SuiteChildStatement::Docstring(docstring) => docstring.0,
SuiteChildStatement::Docstring(docstring) => docstring.docstring,
SuiteChildStatement::Other(statement) => statement,
}
}

10
crates/ruff_python_formatter/tests/snapshots/black_compatibility@simple_cases__fmtonoff.py.snap
View file

@ -225,11 +225,8 @@ d={'a':1,
# fmt: on
goes + here,
andhere,
@@ -120,10 +121,13 @@
The comments between will be formatted. This is a known limitation.
@@ -122,8 +123,10 @@
"""
+
# fmt: off
- # hey, that won't work
@ -240,7 +237,7 @@ d={'a':1,
# fmt: on
pass
@@ -138,7 +142,7 @@
@@ -138,7 +141,7 @@
now . considers . multiple . fmt . directives . within . one . prefix
# fmt: on
# fmt: off
@ -249,7 +246,7 @@ d={'a':1,
# fmt: on
@@ -178,14 +182,18 @@
@@ -178,14 +181,18 @@
$
""",
# fmt: off
@ -398,7 +395,6 @@ def off_and_on_without_data():
The comments between will be formatted. This is a known limitation.
"""
# fmt: off

35
crates/ruff_python_formatter/tests/snapshots/format@docstring.py.snap
View file

@ -142,6 +142,13 @@ class CommentAfterDocstring5:
# This class is also the base class for pathbrowser.PathBrowser.
def f():
"""Browse module classes and functions in IDLE."""
# ^ Do not insert a newline above here
pass
class TabbedIndent:
def tabbed_indent(self):
"""check for correct tabbed formatting
@ -301,6 +308,13 @@ class CommentAfterDocstring5:
# This class is also the base class for pathbrowser.PathBrowser.
def f():
"""Browse module classes and functions in IDLE."""
# ^ Do not insert a newline above here
pass
class TabbedIndent:
def tabbed_indent(self):
"""check for correct tabbed formatting
@ -460,6 +474,13 @@ class CommentAfterDocstring5:
# This class is also the base class for pathbrowser.PathBrowser.
def f():
"""Browse module classes and functions in IDLE."""
# ^ Do not insert a newline above here
pass
class TabbedIndent:
def tabbed_indent(self):
"""check for correct tabbed formatting
@ -619,6 +640,13 @@ class CommentAfterDocstring5:
# This class is also the base class for pathbrowser.PathBrowser.
def f():
"""Browse module classes and functions in IDLE."""
# ^ Do not insert a newline above here
pass
class TabbedIndent:
def tabbed_indent(self):
"""check for correct tabbed formatting
@ -778,6 +806,13 @@ class CommentAfterDocstring5:
# This class is also the base class for pathbrowser.PathBrowser.
def f():
"""Browse module classes and functions in IDLE."""
# ^ Do not insert a newline above here
pass
class TabbedIndent:
def tabbed_indent(self):
"""check for correct tabbed formatting