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authorTamir Duberstein <tamird@gmail.com>2015-03-24 16:53:34 -0700
committerTamir Duberstein <tamird@gmail.com>2015-04-14 20:26:03 -0700
commit29ac04402d53d358a1f6200bea45a301ff05b2d1 (patch)
treeb54ff9c5f2b99a0197147875cf3c5377d8a09cf4 /src/librustdoc
parent16e1fcead14628701e1b10b9d00c898d748db2ed (diff)
downloadrust-29ac04402d53d358a1f6200bea45a301ff05b2d1.tar.gz
rust-29ac04402d53d358a1f6200bea45a301ff05b2d1.zip
Positive case of `len()` -> `is_empty()`
`s/(?<!\{ self)(?<=\.)len\(\) == 0/is_empty()/g`
Diffstat (limited to 'src/librustdoc')
-rw-r--r--src/librustdoc/clean/mod.rs4
-rw-r--r--src/librustdoc/html/format.rs4
-rw-r--r--src/librustdoc/html/layout.rs6
-rw-r--r--src/librustdoc/html/markdown.rs4
-rw-r--r--src/librustdoc/html/render.rs12
-rw-r--r--src/librustdoc/lib.rs2
-rw-r--r--src/librustdoc/markdown.rs2
-rw-r--r--src/librustdoc/passes.rs4
-rw-r--r--src/librustdoc/test.rs2
-rw-r--r--src/librustdoc/visit_ast.rs2
10 files changed, 21 insertions, 21 deletions
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 38df0339e42..ff364eb69a8 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -1820,7 +1820,7 @@ impl<'tcx> Clean<Item> for ty::VariantInfo<'tcx> {
     fn clean(&self, cx: &DocContext) -> Item {
         // use syntax::parse::token::special_idents::unnamed_field;
         let kind = match self.arg_names.as_ref().map(|s| &**s) {
-            None | Some([]) if self.args.len() == 0 => CLikeVariant,
+            None | Some([]) if self.args.is_empty() => CLikeVariant,
             None | Some([]) => {
                 TupleVariant(self.args.clean(cx))
             }
@@ -1874,7 +1874,7 @@ impl Clean<VariantKind> for ast::VariantKind {
     fn clean(&self, cx: &DocContext) -> VariantKind {
         match self {
             &ast::TupleVariantKind(ref args) => {
-                if args.len() == 0 {
+                if args.is_empty() {
                     CLikeVariant
                 } else {
                     TupleVariant(args.iter().map(|x| x.ty.clean(cx)).collect())
diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs
index f6215dcb00c..5aded0215e9 100644
--- a/src/librustdoc/html/format.rs
+++ b/src/librustdoc/html/format.rs
@@ -94,7 +94,7 @@ impl<'a> fmt::Display for TyParamBounds<'a> {
 
 impl fmt::Display for clean::Generics {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        if self.lifetimes.len() == 0 && self.type_params.len() == 0 { return Ok(()) }
+        if self.lifetimes.is_empty() && self.type_params.is_empty() { return Ok(()) }
         try!(f.write_str("&lt;"));
 
         for (i, life) in self.lifetimes.iter().enumerate() {
@@ -132,7 +132,7 @@ impl fmt::Display for clean::Generics {
 impl<'a> fmt::Display for WhereClause<'a> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let &WhereClause(gens) = self;
-        if gens.where_predicates.len() == 0 {
+        if gens.where_predicates.is_empty() {
             return Ok(());
         }
         try!(f.write_str(" <span class='where'>where "));
diff --git a/src/librustdoc/html/layout.rs b/src/librustdoc/html/layout.rs
index 3acd17dedd5..a53884ca047 100644
--- a/src/librustdoc/html/layout.rs
+++ b/src/librustdoc/html/layout.rs
@@ -130,7 +130,7 @@ r##"<!DOCTYPE html>
     content   = *t,
     root_path = page.root_path,
     ty        = page.ty,
-    logo      = if layout.logo.len() == 0 {
+    logo      = if layout.logo.is_empty() {
         "".to_string()
     } else {
         format!("<a href='{}{}/index.html'>\
@@ -141,7 +141,7 @@ r##"<!DOCTYPE html>
     title     = page.title,
     description = page.description,
     keywords = page.keywords,
-    favicon   = if layout.favicon.len() == 0 {
+    favicon   = if layout.favicon.is_empty() {
         "".to_string()
     } else {
         format!(r#"<link rel="shortcut icon" href="{}">"#, layout.favicon)
@@ -152,7 +152,7 @@ r##"<!DOCTYPE html>
     sidebar   = *sidebar,
     krate     = layout.krate,
     play_url  = layout.playground_url,
-    play_js   = if layout.playground_url.len() == 0 {
+    play_js   = if layout.playground_url.is_empty() {
         "".to_string()
     } else {
         format!(r#"<script src="{}playpen.js"></script>"#, page.root_path)
diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs
index cb80d071ce4..334f05fb36f 100644
--- a/src/librustdoc/html/markdown.rs
+++ b/src/librustdoc/html/markdown.rs
@@ -305,7 +305,7 @@ pub fn render(w: &mut fmt::Formatter, s: &str, print_toc: bool) -> fmt::Result {
         let text = format!(r##"<h{lvl} id="{id}" class='section-header'><a
                            href="#{id}">{sec}{}</a></h{lvl}>"##,
                            s, lvl = level, id = id,
-                           sec = if sec.len() == 0 {
+                           sec = if sec.is_empty() {
                                sec.to_string()
                            } else {
                                format!("{} ", sec)
@@ -491,7 +491,7 @@ impl<'a> fmt::Display for Markdown<'a> {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
         let Markdown(md) = *self;
         // This is actually common enough to special-case
-        if md.len() == 0 { return Ok(()) }
+        if md.is_empty() { return Ok(()) }
         render(fmt, md, false)
     }
 }
diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index 8e33a9bd80b..5ee78bf836e 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -912,7 +912,7 @@ impl DocFolder for Cache {
                      false)
                 }
                 clean::MethodItem(..) => {
-                    if self.parent_stack.len() == 0 {
+                    if self.parent_stack.is_empty() {
                         ((None, None), false)
                     } else {
                         let last = self.parent_stack.last().unwrap();
@@ -1115,7 +1115,7 @@ impl Context {
     fn recurse<T, F>(&mut self, s: String, f: F) -> T where
         F: FnOnce(&mut Context) -> T,
     {
-        if s.len() == 0 {
+        if s.is_empty() {
             panic!("Unexpected empty destination: {:?}", self.current);
         }
         let prev = self.dst.clone();
@@ -1343,7 +1343,7 @@ impl Context {
     fn ignore_private_item(&self, it: &clean::Item) -> bool {
         match it.inner {
             clean::ModuleItem(ref m) => {
-                (m.items.len() == 0 &&
+                (m.items.is_empty() &&
                  it.doc_value().is_none() &&
                  it.visibility != Some(ast::Public)) ||
                 (self.passes.contains("strip-private") && it.visibility != Some(ast::Public))
@@ -1690,7 +1690,7 @@ struct Initializer<'a>(&'a str);
 impl<'a> fmt::Display for Initializer<'a> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let Initializer(s) = *self;
-        if s.len() == 0 { return Ok(()); }
+        if s.is_empty() { return Ok(()); }
         try!(write!(f, "<code> = </code>"));
         write!(f, "<code>{}</code>", s)
     }
@@ -1766,7 +1766,7 @@ fn item_trait(w: &mut fmt::Formatter, cx: &Context, it: &clean::Item,
         match m.inner { clean::MethodItem(_) => true, _ => false }
     }).collect::<Vec<_>>();
 
-    if t.items.len() == 0 {
+    if t.items.is_empty() {
         try!(write!(w, "{{ }}"));
     } else {
         try!(write!(w, "{{\n"));
@@ -1986,7 +1986,7 @@ fn item_enum(w: &mut fmt::Formatter, it: &clean::Item,
                   it.name.as_ref().unwrap(),
                   e.generics,
                   WhereClause(&e.generics)));
-    if e.variants.len() == 0 && !e.variants_stripped {
+    if e.variants.is_empty() && !e.variants_stripped {
         try!(write!(w, " {{}}"));
     } else {
         try!(write!(w, " {{\n"));
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index 1393c39f66c..008da466db0 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -219,7 +219,7 @@ pub fn main_args(args: &[String]) -> isize {
         return 0;
     }
 
-    if matches.free.len() == 0 {
+    if matches.free.is_empty() {
         println!("expected an input file to act on");
         return 1;
     } if matches.free.len() > 1 {
diff --git a/src/librustdoc/markdown.rs b/src/librustdoc/markdown.rs
index 6541564d8e2..00de4e3ec53 100644
--- a/src/librustdoc/markdown.rs
+++ b/src/librustdoc/markdown.rs
@@ -74,7 +74,7 @@ pub fn render(input: &str, mut output: PathBuf, matches: &getopts::Matches,
     };
 
     let (metadata, text) = extract_leading_metadata(&input_str);
-    if metadata.len() == 0 {
+    if metadata.is_empty() {
         let _ = writeln!(&mut io::stderr(),
                          "invalid markdown file: expecting initial line with `% ...TITLE...`");
         return 5;
diff --git a/src/librustdoc/passes.rs b/src/librustdoc/passes.rs
index 953b442bb3c..7b8241e9b5b 100644
--- a/src/librustdoc/passes.rs
+++ b/src/librustdoc/passes.rs
@@ -215,9 +215,9 @@ impl<'a> fold::DocFolder for Stripper<'a> {
                 match i.inner {
                     // emptied modules/impls have no need to exist
                     clean::ModuleItem(ref m)
-                        if m.items.len() == 0 &&
+                        if m.items.is_empty() &&
                            i.doc_value().is_none() => None,
-                    clean::ImplItem(ref i) if i.items.len() == 0 => None,
+                    clean::ImplItem(ref i) if i.items.is_empty() => None,
                     _ => {
                         self.retained.insert(i.def_id.node);
                         Some(i)
diff --git a/src/librustdoc/test.rs b/src/librustdoc/test.rs
index 94b521a89cf..449f9c79d1d 100644
--- a/src/librustdoc/test.rs
+++ b/src/librustdoc/test.rs
@@ -409,7 +409,7 @@ impl Collector {
 impl DocFolder for Collector {
     fn fold_item(&mut self, item: clean::Item) -> Option<clean::Item> {
         let pushed = match item.name {
-            Some(ref name) if name.len() == 0 => false,
+            Some(ref name) if name.is_empty() => false,
             Some(ref name) => { self.names.push(name.to_string()); true }
             None => false
         };
diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs
index a1fa96322a4..e4f4dbaafbe 100644
--- a/src/librustdoc/visit_ast.rs
+++ b/src/librustdoc/visit_ast.rs
@@ -175,7 +175,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
                                      please_inline)
                 }).collect::<Vec<ast::PathListItem>>();
 
-                if mine.len() == 0 {
+                if mine.is_empty() {
                     None
                 } else {
                     Some(ast::ViewPathList(p, mine))
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-07-15 07:06:54 +0000