fmt and fix io::Write impl

Author: newpavlov

digest/src/core_api.rs

@@ -4,7 +4,10 @@
 //! core algorithm wrapped by the wrapper types, which implement the
 //! higher-level traits.
 use crate::InvalidOutputSize;
-use generic_array::{ArrayLength, typenum::{U256, IsLess, Le, NonZero}};
+use generic_array::{
+    typenum::{IsLess, Le, NonZero, U256},
+    ArrayLength,
+};
 
 pub use crypto_common::{AlgorithmName, Block, BlockSizeUser, OutputSizeUser, Reset};
 

digest/src/core_api/ct_variable.rs

@@ -7,7 +7,7 @@ use crate::MacMarker;
 use core::{fmt, marker::PhantomData};
 use crypto_common::{Block, BlockSizeUser, OutputSizeUser};
 use generic_array::{
-    typenum::{IsLessOrEqual, IsLess, Le, LeEq, NonZero, U256},
+    typenum::{IsLess, IsLessOrEqual, Le, LeEq, NonZero, U256},
     ArrayLength, GenericArray,
 };
 

digest/src/core_api/rt_variable.rs

@@ -5,7 +5,7 @@ use crate::MacMarker;
 use crate::{InvalidOutputSize, Reset, Update, VariableOutput};
 use block_buffer::BlockBuffer;
 use core::fmt;
-use generic_array::typenum::{Unsigned, Le, IsLess, U256, NonZero};
+use generic_array::typenum::{IsLess, Le, NonZero, Unsigned, U256};
 
 /// Wrapper around [`VariableOutputCore`] which selects output size
 /// at run time.
@@ -26,7 +26,8 @@ where
     T: VariableOutputCore + HashMarker,
     T::BlockSize: IsLess<U256>,
     Le<T::BlockSize, U256>: NonZero,
-{}
+{
+}
 
 #[cfg(feature = "mac")]
 #[cfg_attr(docsrs, doc(cfg(feature = "mac")))]
@@ -35,7 +36,8 @@ where
     T: VariableOutputCore + MacMarker,
     T::BlockSize: IsLess<U256>,
     Le<T::BlockSize, U256>: NonZero,
-{}
+{
+}
 
 impl<T> Reset for RtVariableCoreWrapper<T>
 where

digest/src/core_api/wrapper.rs

@@ -5,8 +5,8 @@ use super::{
 use crate::{ExtendableOutput, FixedOutput, FixedOutputReset, HashMarker, Update};
 use block_buffer::BlockBuffer;
 use core::fmt;
-use crypto_common::{InvalidLength, Key, KeyInit, KeySizeUser, Output, BlockSizeUser};
-use generic_array::typenum::{NonZero, IsLess, Le, U256};
+use crypto_common::{BlockSizeUser, InvalidLength, Key, KeyInit, KeySizeUser, Output};
+use generic_array::typenum::{IsLess, Le, NonZero, U256};
 
 #[cfg(feature = "mac")]
 use crate::MacMarker;
@@ -30,7 +30,8 @@ where
     T: BufferKindUser + HashMarker,
     T::BlockSize: IsLess<U256>,
     Le<T::BlockSize, U256>: NonZero,
-{}
+{
+}
 
 #[cfg(feature = "mac")]
 #[cfg_attr(docsrs, doc(cfg(feature = "mac")))]
@@ -39,7 +40,8 @@ where
     T: BufferKindUser + MacMarker,
     T::BlockSize: IsLess<U256>,
     Le<T::BlockSize, U256>: NonZero,
-{}
+{
+}
 
 impl<T> CoreWrapper<T>
 where
@@ -196,7 +198,12 @@ where
 
 #[cfg(feature = "std")]
 #[cfg_attr(docsrs, doc(cfg(feature = "std")))]
-impl<D: UpdateCore + BufferKindUser> std::io::Write for CoreWrapper<D> {
+impl<T> std::io::Write for CoreWrapper<T>
+where
+    T: BufferKindUser + UpdateCore,
+    T::BlockSize: IsLess<U256>,
+    Le<T::BlockSize, U256>: NonZero,
+{
     #[inline]
     fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
         Update::update(self, buf);
@@ -226,7 +233,8 @@ where
     T: BufferKindUser,
     T::BlockSize: IsLess<U256>,
     Le<T::BlockSize, U256>: NonZero,
-{}
+{
+}
 
 impl<T> CoreProxy for CoreWrapper<T>
 where

digest/src/core_api/xof_reader.rs

@@ -2,7 +2,7 @@ use super::{AlgorithmName, XofReaderCore};
 use crate::XofReader;
 use block_buffer::EagerBuffer;
 use core::fmt;
-use generic_array::typenum::{IsLess, Le, U256, NonZero};
+use generic_array::typenum::{IsLess, Le, NonZero, U256};
 
 /// Wrapper around [`XofReaderCore`] implementations.
 ///