fix: clippy warnings (#280)

src/dsa/rpo_falcon512/error.rs

@@ -1,6 +1,7 @@
-use super::{LOG_N, MODULUS, PK_LEN};
 use core::fmt;
 
+use super::{LOG_N, MODULUS, PK_LEN};
+
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum FalconError {
     KeyGenerationFailed,

src/dsa/rpo_falcon512/ffi.rs

@@ -96,9 +96,10 @@ pub struct Rpo128Context {
 
 #[cfg(all(test, feature = "std"))]
 mod tests {
+    use rand_utils::{rand_array, rand_value, rand_vector};
+
     use super::*;
     use crate::dsa::rpo_falcon512::{NONCE_LEN, PK_LEN, SIG_LEN, SK_LEN};
-    use rand_utils::{rand_array, rand_value, rand_vector};
 
     #[test]
     fn falcon_ffi() {

src/dsa/rpo_falcon512/keys.rs

@@ -1,11 +1,10 @@
+#[cfg(feature = "std")]
+use super::{ffi, NonceBytes, NONCE_LEN, PK_LEN, SIG_LEN, SK_LEN};
 use super::{
     ByteReader, ByteWriter, Deserializable, DeserializationError, FalconError, Polynomial,
     PublicKeyBytes, Rpo256, SecretKeyBytes, Serializable, Signature, Word,
 };
 
-#[cfg(feature = "std")]
-use super::{ffi, NonceBytes, NONCE_LEN, PK_LEN, SIG_LEN, SK_LEN};
-
 // PUBLIC KEY
 // ================================================================================================
 
@@ -182,9 +181,10 @@ impl Deserializable for KeyPair {
 
 #[cfg(all(test, feature = "std"))]
 mod tests {
-    use super::{super::Felt, KeyPair, NonceBytes, Word};
     use rand_utils::{rand_array, rand_vector};
 
+    use super::{super::Felt, KeyPair, NonceBytes, Word};
+
     #[test]
     fn test_falcon_verification() {
         // generate random keys

src/dsa/rpo_falcon512/mod.rs

@@ -1,9 +1,6 @@
 use crate::{
     hash::rpo::Rpo256,
-    utils::{
-        collections::Vec, ByteReader, ByteWriter, Deserializable, DeserializationError,
-        Serializable,
-    },
+    utils::{ByteReader, ByteWriter, Deserializable, DeserializationError, Serializable},
     Felt, Word, ZERO,
 };
 

src/dsa/rpo_falcon512/polynomial.rs

@@ -1,6 +1,8 @@
-use super::{FalconError, Felt, Vec, LOG_N, MODULUS, MODULUS_MINUS_1_OVER_TWO, N, PK_LEN};
 use core::ops::{Add, Mul, Sub};
 
+use super::{FalconError, Felt, LOG_N, MODULUS, MODULUS_MINUS_1_OVER_TWO, N, PK_LEN};
+use crate::utils::collections::*;
+
 // FALCON POLYNOMIAL
 // ================================================================================================
 

src/dsa/rpo_falcon512/signature.rs

@@ -1,10 +1,11 @@
+use core::cell::OnceCell;
+
 use super::{
     ByteReader, ByteWriter, Deserializable, DeserializationError, Felt, NonceBytes, NonceElements,
     Polynomial, PublicKeyBytes, Rpo256, Serializable, SignatureBytes, Word, MODULUS, N,
     SIG_L2_BOUND, ZERO,
 };
-use crate::utils::string::ToString;
-use core::cell::OnceCell;
+use crate::utils::string::*;
 
 // FALCON SIGNATURE
 // ================================================================================================
@@ -195,13 +196,14 @@ fn decode_nonce(nonce: &NonceBytes) -> NonceElements {
 
 #[cfg(all(test, feature = "std"))]
 mod tests {
-    use super::{
-        super::{ffi::*, Felt, KeyPair},
-        *,
-    };
     use libc::c_void;
     use rand_utils::rand_vector;
 
+    use super::{
+        super::{ffi::*, KeyPair},
+        *,
+    };
+
     // Wrappers for unsafe functions
     impl Rpo128Context {
         /// Initializes the RPO state.