Positive case of `len()` -> `is_empty()`

`s/(?<!\{ self)(?<=\.)len\(\) == 0/is_empty()/g`

2 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/collections/hash/set.rs b/src/libstd/collections/hash/set.rs
index 6b0546b1ee7..62c03389b24 100644
--- a/src/libstd/collections/hash/set.rs
+++ b/src/libstd/collections/hash/set.rs
@@ -430,7 +430,7 @@ impl<T, S> HashSet<T, S>
     /// assert!(!v.is_empty());
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    pub fn is_empty(&self) -> bool { self.map.len() == 0 }
+    pub fn is_empty(&self) -> bool { self.map.is_empty() }
 
     /// Clears the set, returning all elements in an iterator.
     #[inline]
diff --git a/src/libstd/sys/windows/process2.rs b/src/libstd/sys/windows/process2.rs
index 74953921921..3d5c9867a6f 100644
--- a/src/libstd/sys/windows/process2.rs
+++ b/src/libstd/sys/windows/process2.rs
@@ -381,7 +381,7 @@ fn make_command_line(prog: &OsStr, args: &[OsString]) -> Vec<u16> {
         // it will be dropped entirely when parsed on the other end.
         let arg_bytes = &arg.as_inner().inner.as_inner();
         let quote = arg_bytes.iter().any(|c| *c == b' ' || *c == b'\t')
-            || arg_bytes.len() == 0;
+            || arg_bytes.is_empty();
         if quote {
             cmd.push('"' as u16);
         }