build(deps): bump serde-big-array from 0.3.2 to 0.4.1 (#4004)

Bumps [serde-big-array](https://github.com/est31/serde-big-array) from 0.3.2 to 0.4.1.
- [Release notes](https://github.com/est31/serde-big-array/releases)
- [Commits](https://github.com/est31/serde-big-array/compare/v0.3.2...v0.4.1)

---
updated-dependencies:
- dependency-name: serde-big-array
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Cargo.lock

@@ -3836,12 +3836,11 @@ dependencies = [
 
 [[package]]
 name = "serde-big-array"
-version = "0.3.2"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18b20e7752957bbe9661cff4e0bb04d183d0948cdab2ea58cdb9df36a61dfe62"
+checksum = "3323f09a748af288c3dc2474ea6803ee81f118321775bffa3ac8f7e65c5e90e7"
 dependencies = [
  "serde",
- "serde_derive",
 ]
 
 [[package]]

zebra-chain/Cargo.toml

@@ -39,7 +39,7 @@ rand_core = "0.6.3"
 ripemd160 = "0.9"
 serde = { version = "1.0.136", features = ["serde_derive", "rc"] }
 secp256k1 = { version = "0.21.3", features = ["serde"] }
-serde-big-array = "0.3.2"
+serde-big-array = "0.4.1"
 sha2 = { version = "0.9.9", features=["compress"] }
 static_assertions = "1.1.0"
 subtle = "2.4.1"

zebra-chain/src/lib.rs

@@ -11,8 +11,6 @@
 
 #[macro_use]
 extern crate serde;
-#[macro_use]
-extern crate serde_big_array;
 
 #[macro_use]
 extern crate bitflags;

zebra-chain/src/orchard/note/ciphertexts.rs

@@ -1,12 +1,14 @@
 use std::{fmt, io};
 
-use crate::serialization::{serde_helpers, SerializationError, ZcashDeserialize, ZcashSerialize};
+use serde_big_array::BigArray;
+
+use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// A ciphertext component for encrypted output notes.
 ///
 /// Corresponds to the Orchard 'encCiphertext's
 #[derive(Deserialize, Serialize)]
-pub struct EncryptedNote(#[serde(with = "serde_helpers::BigArray")] pub(crate) [u8; 580]);
+pub struct EncryptedNote(#[serde(with = "BigArray")] pub(crate) [u8; 580]);
 
 // These impls all only exist because of array length restrictions.
 // TODO: use const generics https://github.com/ZcashFoundation/zebra/issues/2042
@@ -68,7 +70,7 @@ impl ZcashDeserialize for EncryptedNote {
 ///
 /// Corresponds to Orchard's 'outCiphertext'
 #[derive(Deserialize, Serialize)]
-pub struct WrappedNoteKey(#[serde(with = "serde_helpers::BigArray")] pub(crate) [u8; 80]);
+pub struct WrappedNoteKey(#[serde(with = "BigArray")] pub(crate) [u8; 80]);
 
 impl fmt::Debug for WrappedNoteKey {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

zebra-chain/src/primitives/proofs/bctv14.rs

@@ -1,12 +1,13 @@
 use std::{fmt, io};
 
 use serde::{Deserialize, Serialize};
+use serde_big_array::BigArray;
 
-use crate::serialization::{serde_helpers, SerializationError, ZcashDeserialize, ZcashSerialize};
+use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// An encoding of a BCTV14 proof, as used in Zcash.
 #[derive(Serialize, Deserialize)]
-pub struct Bctv14Proof(#[serde(with = "serde_helpers::BigArray")] pub [u8; 296]);
+pub struct Bctv14Proof(#[serde(with = "BigArray")] pub [u8; 296]);
 
 impl fmt::Debug for Bctv14Proof {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

zebra-chain/src/primitives/proofs/groth16.rs

@@ -1,11 +1,13 @@
-use serde::{Deserialize, Serialize};
 use std::{fmt, io};
 
-use crate::serialization::{serde_helpers, SerializationError, ZcashDeserialize, ZcashSerialize};
+use serde::{Deserialize, Serialize};
+use serde_big_array::BigArray;
+
+use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// An encoding of a Groth16 proof, as used in Zcash.
 #[derive(Serialize, Deserialize)]
-pub struct Groth16Proof(#[serde(with = "serde_helpers::BigArray")] pub [u8; 192]);
+pub struct Groth16Proof(#[serde(with = "BigArray")] pub [u8; 192]);
 
 impl fmt::Debug for Groth16Proof {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

zebra-chain/src/primitives/zcash_history.rs

@@ -9,6 +9,7 @@ mod tests;
 
 use std::{collections::BTreeMap, convert::TryInto, io, sync::Arc};
 
+use serde_big_array::BigArray;
 pub use zcash_history::{V1, V2};
 
 use crate::{
@@ -18,8 +19,6 @@ use crate::{
     sapling,
 };
 
-big_array! { BigArray; zcash_history::MAX_ENTRY_SIZE }
-
 /// A trait to represent a version of `Tree`.
 pub trait Version: zcash_history::Version {
     /// Convert a Block into the NodeData for this version.

zebra-chain/src/sapling/note/ciphertexts.rs

@@ -1,12 +1,14 @@
 use std::{fmt, io};
 
-use crate::serialization::{serde_helpers, SerializationError, ZcashDeserialize, ZcashSerialize};
+use serde_big_array::BigArray;
+
+use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// A ciphertext component for encrypted output notes.
 ///
 /// Corresponds to the Sapling 'encCiphertext's
 #[derive(Deserialize, Serialize)]
-pub struct EncryptedNote(#[serde(with = "serde_helpers::BigArray")] pub(crate) [u8; 580]);
+pub struct EncryptedNote(#[serde(with = "BigArray")] pub(crate) [u8; 580]);
 
 impl fmt::Debug for EncryptedNote {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -55,7 +57,7 @@ impl ZcashDeserialize for EncryptedNote {
 ///
 /// Corresponds to Sapling's 'outCiphertext'
 #[derive(Deserialize, Serialize)]
-pub struct WrappedNoteKey(#[serde(with = "serde_helpers::BigArray")] pub(crate) [u8; 80]);
+pub struct WrappedNoteKey(#[serde(with = "BigArray")] pub(crate) [u8; 80]);
 
 impl fmt::Debug for WrappedNoteKey {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

zebra-chain/src/serialization/serde_helpers.rs

@@ -1,17 +1,5 @@
 use group::GroupEncoding;
 use halo2::{arithmetic::FieldExt, pasta::pallas};
-use serde_big_array::big_array;
-
-big_array! {
-    BigArray;
-    + 1344, // `EquihashSolution`
-    80,   // `sapling::OutCiphertext`
-    580,  // `sapling::EncryptedCiphertext`
-    601,  // `sprout::EncryptedCiphertext`
-    296,  // `Bctv14Proof`
-    196,  // `Groth16Proof`
-}
-
 #[derive(Deserialize, Serialize)]
 #[serde(remote = "jubjub::AffinePoint")]
 pub struct AffinePoint {

zebra-chain/src/sprout/note/ciphertexts.rs

@@ -1,14 +1,15 @@
 use std::{fmt, io};
 
 use serde::{Deserialize, Serialize};
+use serde_big_array::BigArray;
 
-use crate::serialization::{serde_helpers, SerializationError, ZcashDeserialize, ZcashSerialize};
+use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// A ciphertext component for encrypted output notes.
 ///
 /// Corresponds to the Sprout 'encCiphertext's
 #[derive(Serialize, Deserialize)]
-pub struct EncryptedNote(#[serde(with = "serde_helpers::BigArray")] pub [u8; 601]);
+pub struct EncryptedNote(#[serde(with = "BigArray")] pub [u8; 601]);
 
 impl fmt::Debug for EncryptedNote {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

zebra-chain/src/work/equihash.rs

@@ -2,11 +2,13 @@
 
 use std::{fmt, io};
 
+use serde_big_array::BigArray;
+
 use crate::{
     block::Header,
     serialization::{
-        serde_helpers, zcash_serialize_bytes, SerializationError, ZcashDeserialize,
-        ZcashDeserializeInto, ZcashSerialize,
+        zcash_serialize_bytes, SerializationError, ZcashDeserialize, ZcashDeserializeInto,
+        ZcashSerialize,
     },
 };
 
@@ -28,7 +30,7 @@ pub(crate) const SOLUTION_SIZE: usize = 1344;
 /// The size of an Equihash solution in bytes is always 1344 so the
 /// length of this type is fixed.
 #[derive(Deserialize, Serialize)]
-pub struct Solution(#[serde(with = "serde_helpers::BigArray")] pub [u8; SOLUTION_SIZE]);
+pub struct Solution(#[serde(with = "BigArray")] pub [u8; SOLUTION_SIZE]);
 
 impl Solution {
     /// The length of the portion of the header used as input when verifying