Lint: Use is_empty().

  - https://rust-lang.github.io/rust-clippy/master/index.html#len_zero

  - https://rust-lang.github.io/rust-clippy/master/index.html#comparison_to_empty

1 files changed, 3 insertions, 3 deletions

diff --git a/openpgp/src/crypto/symmetric.rs b/openpgp/src/crypto/symmetric.rs
index dba529ef..45e9cbd9 100644
--- a/openpgp/src/crypto/symmetric.rs
+++ b/openpgp/src/crypto/symmetric.rs
@@ -107,7 +107,7 @@ impl<R: io::Read> io::Read for Decryptor<R> {
         let mut pos = 0;
 
         // 1. Copy any buffered data.
-        if self.buffer.len() > 0 {
+        if !self.buffer.is_empty() {
             let to_copy = cmp::min(self.buffer.len(), plaintext.len());
             &plaintext[..to_copy].copy_from_slice(&self.buffer[..to_copy]);
             crate::vec_drain_prefix(&mut self.buffer, to_copy);
@@ -334,7 +334,7 @@ impl<W: io::Write> Encryptor<W> {
     /// Finish encryption and write last partial block.
     pub fn finish(&mut self) -> Result<W> {
         if let Some(mut inner) = self.inner.take() {
-            if self.buffer.len() > 0 {
+            if !self.buffer.is_empty() {
                 unsafe { self.scratch.set_len(self.buffer.len()) }
                 self.cipher.encrypt(&mut self.scratch, &self.buffer)?;
                 crate::vec_truncate(&mut self.buffer, 0);
@@ -369,7 +369,7 @@ impl<W: io::Write> io::Write for Encryptor<W> {
         let amount = buf.len();
 
         // First, fill the buffer if there is something in it.
-        if self.buffer.len() > 0 {
+        if !self.buffer.is_empty() {
             let n = cmp::min(buf.len(), self.block_size - self.buffer.len());
             self.buffer.extend_from_slice(&buf[..n]);
             assert!(self.buffer.len() <= self.block_size);