Add builders for common comment rendering (#3232)

crates/ruff_python_formatter/src/format/builders.rs

@@ -1,8 +1,9 @@
 use ruff_formatter::prelude::*;
 use ruff_formatter::{write, Format};
-use ruff_text_size::TextSize;
+use ruff_text_size::{TextRange, TextSize};
 
 use crate::context::ASTFormatContext;
+use crate::core::types::Range;
 use crate::cst::Stmt;
 use crate::shared_traits::AsFormat;
 
@@ -28,6 +29,26 @@ pub fn block(body: &[Stmt]) -> Block {
     Block { body }
 }
 
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub struct Literal {
+    range: Range,
+}
+
+impl Format<ASTFormatContext<'_>> for Literal {
+    fn fmt(&self, f: &mut Formatter<ASTFormatContext<'_>>) -> FormatResult<()> {
+        let (text, start, end) = f.context().locator().slice(self.range);
+        f.write_element(FormatElement::StaticTextSlice {
+            text,
+            range: TextRange::new(start.try_into().unwrap(), end.try_into().unwrap()),
+        })
+    }
+}
+
+#[inline]
+pub const fn literal(range: Range) -> Literal {
+    Literal { range }
+}
+
 pub(crate) const fn join_names(names: &[String]) -> JoinNames {
     JoinNames { names }
 }