Delete writeln_str

Author: yotamofek

src/librustdoc/html/format.rs

@@ -41,11 +41,6 @@ pub(crate) fn write_str(s: &mut String, f: fmt::Arguments<'_>) {
     s.write_fmt(f).unwrap();
 }
 
-pub(crate) fn writeln_str(s: &mut String, f: fmt::Arguments<'_>) {
-    s.write_fmt(f).unwrap();
-    s.push('\n');
-}
-
 pub(crate) fn print_generic_bounds<'a, 'tcx: 'a>(
     bounds: &'a [clean::GenericBound],
     cx: &'a Context<'tcx>,

src/librustdoc/html/highlight.rs

@@ -14,7 +14,7 @@ use rustc_span::edition::Edition;
 use rustc_span::symbol::Symbol;
 use rustc_span::{BytePos, DUMMY_SP, Span};
 
-use super::format::{self, write_str, writeln_str};
+use super::format::{self, write_str};
 use crate::clean::PrimitiveType;
 use crate::html::escape::EscapeBodyText;
 use crate::html::render::{Context, LinkFromSrc};
@@ -331,7 +331,7 @@ pub(super) fn write_code(
 }
 
 fn write_footer(out: &mut String, playground_button: Option<&str>) {
-    writeln_str(out, format_args!("</code></pre>{}</div>", playground_button.unwrap_or_default()));
+    write_str(out, format_args_nl!("</code></pre>{}</div>", playground_button.unwrap_or_default()));
 }
 
 /// How a span of text is classified. Mostly corresponds to token kinds.

src/librustdoc/html/render/print_item.rs

@@ -33,7 +33,6 @@ use crate::html::escape::{Escape, EscapeBodyTextWithWbr};
 use crate::html::format::{
     Ending, PrintWithSpace, join_with_double_colon, print_abi_with_space,
     print_constness_with_space, print_where_clause, visibility_print_with_space, write_str,
-    writeln_str,
 };
 use crate::html::markdown::{HeadingOffset, MarkdownSummaryLine};
 use crate::html::render::{document_full, document_item_info};
@@ -755,9 +754,9 @@ fn item_trait(w: &mut String, cx: &Context<'_>, it: &clean::Item, t: &clean::Tra
             }
 
             if !required_methods.is_empty() {
-                writeln_str(
+                write_str(
                     w,
-                    format_args!("    // Required method{}", pluralize(required_methods.len())),
+                    format_args_nl!("    // Required method{}", pluralize(required_methods.len())),
                 );
             }
             for (pos, m) in required_methods.iter().enumerate() {
@@ -780,9 +779,9 @@ fn item_trait(w: &mut String, cx: &Context<'_>, it: &clean::Item, t: &clean::Tra
             }
 
             if !provided_methods.is_empty() {
-                writeln_str(
+                write_str(
                     w,
-                    format_args!("    // Provided method{}", pluralize(provided_methods.len())),
+                    format_args_nl!("    // Provided method{}", pluralize(provided_methods.len())),
                 );
             }
             for (pos, m) in provided_methods.iter().enumerate() {

src/librustdoc/lib.rs

@@ -7,6 +7,7 @@
 #![feature(box_patterns)]
 #![feature(debug_closure_helpers)]
 #![feature(file_buffered)]
+#![feature(format_args_nl)]
 #![feature(if_let_guard)]
 #![feature(impl_trait_in_assoc_type)]
 #![feature(iter_intersperse)]