block-cipher-trait: update to 2018 edition

Author: tarcieri

block-cipher-trait/Cargo.toml

@@ -1,9 +1,10 @@
 [package]
 name = "block-cipher-trait"
 version = "0.6.2"
+description = "Traits for description of block ciphers"
 authors = ["RustCrypto Developers"]
+edition = "2018"
 license = "MIT OR Apache-2.0"
-description = "Traits for description of block ciphers"
 documentation = "https://docs.rs/block-cipher-trait"
 repository = "https://github.com/RustCrypto/traits"
 keywords = ["crypto", "block-cipher", "trait"]

block-cipher-trait/src/dev.rs

@@ -1,3 +1,6 @@
+//! Development-related functionality
+
+/// Define test
 #[macro_export]
 macro_rules! new_test {
     ($name:ident, $test_name:expr, $cipher:ty) => {
@@ -102,6 +105,7 @@ macro_rules! new_test {
     };
 }
 
+/// Define benchmark
 #[macro_export]
 macro_rules! bench {
     ($cipher:path, $key_len:expr) => {

block-cipher-trait/src/errors.rs

@@ -7,7 +7,7 @@ use std::error;
 pub struct InvalidKeyLength;
 
 impl fmt::Display for InvalidKeyLength {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.write_str("invalid key length")
     }
 }

block-cipher-trait/src/lib.rs

@@ -1,22 +1,24 @@
 //! This crate defines a set of simple traits used to define functionality of
 //! block ciphers.
+
 #![no_std]
-#![forbid(unsafe_code)]
 #![doc(html_logo_url = "https://github.com/RustCrypto/meta/master/logo_small.png")]
-#[cfg(feature = "dev")]
-pub extern crate blobby;
-pub extern crate generic_array;
+#![forbid(unsafe_code)]
+#![warn(missing_docs, rust_2018_idioms)]
+
 #[cfg(feature = "std")]
 extern crate std;
 
-use generic_array::typenum::Unsigned;
-use generic_array::{ArrayLength, GenericArray};
-
 #[cfg(feature = "dev")]
 pub mod dev;
+
 mod errors;
 
-pub use errors::InvalidKeyLength;
+pub use crate::errors::InvalidKeyLength;
+pub use generic_array;
+
+use generic_array::typenum::Unsigned;
+use generic_array::{ArrayLength, GenericArray};
 
 type ParBlocks<B, P> = GenericArray<GenericArray<u8, B>, P>;