use String::new() instead of String::from(""), "".to_string(), "".to_owned() or "".into()

3 files changed, 8 insertions, 8 deletions

diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs
index 58034d1df5a..7643aade83b 100644
--- a/src/librustdoc/html/format.rs
+++ b/src/librustdoc/html/format.rs
@@ -620,7 +620,7 @@ fn fmt_type(t: &clean::Type, f: &mut fmt::Formatter, use_absolute: bool) -> fmt:
         clean::BorrowedRef{ lifetime: ref l, mutability, type_: ref ty} => {
             let lt = match *l {
                 Some(ref l) => format!("{} ", *l),
-                _ => "".to_string(),
+                _ => String::new(),
             };
             let m = MutableSpace(mutability);
             let amp = if f.alternate() {
diff --git a/src/librustdoc/html/layout.rs b/src/librustdoc/html/layout.rs
index af7c0a04215..582f31ce7c7 100644
--- a/src/librustdoc/html/layout.rs
+++ b/src/librustdoc/html/layout.rs
@@ -156,13 +156,13 @@ pub fn render<T: fmt::Display, S: fmt::Display>(
                 root_path = page.root_path,
                 suffix=page.resource_suffix)
     } else {
-        "".to_owned()
+        String::new()
     },
     content   = *t,
     root_path = page.root_path,
     css_class = page.css_class,
     logo      = if layout.logo.is_empty() {
-        "".to_string()
+        String::new()
     } else {
         format!("<a href='{}{}/index.html'>\
                  <img src='{}' alt='logo' width='100'></a>",
@@ -173,7 +173,7 @@ pub fn render<T: fmt::Display, S: fmt::Display>(
     description = page.description,
     keywords = page.keywords,
     favicon   = if layout.favicon.is_empty() {
-        "".to_string()
+        String::new()
     } else {
         format!(r#"<link rel="shortcut icon" href="{}">"#, layout.favicon)
     },
diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index 4caea56faad..8fb3b570f8a 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -504,8 +504,8 @@ pub fn run(mut krate: clean::Crate,
         local_sources: FxHashMap(),
         issue_tracker_base_url: None,
         layout: layout::Layout {
-            logo: "".to_string(),
-            favicon: "".to_string(),
+            logo: String::new(),
+            favicon: String::new(),
             external_html: external_html.clone(),
             krate: krate.name.clone(),
         },
@@ -2183,7 +2183,7 @@ fn shorter<'a>(s: Option<&'a str>) -> String {
                 !chr.is_whitespace()
             })
         }).collect::<Vec<_>>().join("\n"),
-        None => "".to_string()
+        None => String::new()
     }
 }
 
@@ -2479,7 +2479,7 @@ fn item_module(w: &mut fmt::Formatter, cx: &Context,
                        stab_docs = stab_docs,
                        docs = MarkdownSummaryLine(doc_value, &myitem.links()),
                        class = myitem.type_(),
-                       stab = myitem.stability_class().unwrap_or("".to_string()),
+                       stab = myitem.stability_class().unwrap_or(String::new()),
                        unsafety_flag = unsafety_flag,
                        href = item_path(myitem.type_(), myitem.name.as_ref().unwrap()),
                        title_type = myitem.type_(),