Format delete statement

crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/delete.py

@@ -0,0 +1,61 @@
+x = 1
+aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1
+b, c, d = (2, 3, 4)
+
+del (
+    # Dangling comment
+)
+
+# Delete something
+del x  # Deleted something
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+) # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+) # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x,  # Deleted something
+    # Finishing deletes
+) # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+
+    # Dangling comment
+) # Completed
+# Done deleting
+
+# Delete something
+del x, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, b, c, d  # Delete these
+# Ready to delete
+
+# Delete something
+del (
+    x,
+    # Deleting this
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
+    b,
+    c,
+    d
+    # Deleted
+) # Completed
+# Done

crates/ruff_python_formatter/src/snapshots/ruff_python_formatter__tests__ruff_test__statement__delete_py.snap

@@ -0,0 +1,136 @@
+---
+source: crates/ruff_python_formatter/src/lib.rs
+expression: snapshot
+---
+## Input
+```py
+x = 1
+aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1
+b, c, d = (2, 3, 4)
+
+del (
+    # Dangling comment
+)
+
+# Delete something
+del x  # Deleted something
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+) # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+) # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x,  # Deleted something
+    # Finishing deletes
+) # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+
+    # Dangling comment
+) # Completed
+# Done deleting
+
+# Delete something
+del x, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, b, c, d  # Delete these
+# Ready to delete
+
+# Delete something
+del (
+    x,
+    # Deleting this
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
+    b,
+    c,
+    d
+    # Deleted
+) # Completed
+# Done
+```
+
+
+
+## Output
+```py
+x = 1
+aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1
+b, c, d = (2, 3, 4)
+
+del (
+    # Dangling comment
+)
+
+# Delete something
+del x  # Deleted something
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+)  # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+)  # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x,  # Deleted something
+    # Finishing deletes
+)  # Completed
+# Done deleting
+
+# Delete something
+del (
+    # Deleting something
+    x  # Deleted something
+    # Finishing deletes
+    # Dangling comment
+)  # Completed
+# Done deleting
+
+# Delete something
+del x, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, b, c, d  # Delete these
+# Ready to delete
+
+# Delete something
+del (
+    x,
+    # Deleting this
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
+    b,
+    c,
+    d,
+    # Deleted
+)  # Completed
+# Done
+```
+
+

crates/ruff_python_formatter/src/statement/stmt_delete.rs

@@ -1,12 +1,45 @@
-use crate::{not_yet_implemented, FormatNodeRule, PyFormatter};
-use ruff_formatter::{write, Buffer, FormatResult};
-use rustpython_parser::ast::StmtDelete;
+use crate::expression::parentheses::Parenthesize;
+use crate::prelude::PyFormatContext;
+use crate::{AsFormat, FormatNodeRule, PyFormatter};
+use ruff_formatter::prelude::{
+    format_args, format_with, group, soft_line_break_or_space, space, text, Formatter,
+};
+use ruff_formatter::{write, Buffer, Format, FormatResult};
+use rustpython_parser::ast::{Expr, StmtDelete};
 
 #[derive(Default)]
 pub struct FormatStmtDelete;
 
 impl FormatNodeRule<StmtDelete> for FormatStmtDelete {
     fn fmt_fields(&self, item: &StmtDelete, f: &mut PyFormatter) -> FormatResult<()> {
-        write!(f, [not_yet_implemented(item)])
+        let StmtDelete { range: _, targets } = item;
+        write!(f, [text("del"), space(), DeleteList::new(targets)])
+    }
+}
+
+// TODO(cnpryer): Impl FormatRuleWithOptions Parenthesize
+#[derive(Debug)]
+struct DeleteList<'a> {
+    delete_list: &'a [Expr],
+}
+
+impl<'a> DeleteList<'a> {
+    const fn new(delete_list: &'a [Expr]) -> Self {
+        Self { delete_list }
+    }
+}
+
+impl Format<PyFormatContext<'_>> for DeleteList<'_> {
+    fn fmt(&self, f: &mut Formatter<PyFormatContext<'_>>) -> FormatResult<()> {
+        let separator =
+            format_with(|f| group(&format_args![text(","), soft_line_break_or_space(),]).fmt(f));
+        let mut join = f.join_with(separator);
+
+        for element in self.delete_list {
+            join.entry(&format_with(|f| {
+                write!(f, [element.format().with_options(Parenthesize::IfBreaks)])
+            }));
+        }
+        join.finish()
     }
 }