From 1a1c77536d824d7b6bd0eaf3e9888829a7a1f5dc Mon Sep 17 00:00:00 2001
From: Jack Grigg <jack@z.cash>
Date: Thu, 3 Jan 2019 21:52:06 +0000
Subject: [PATCH] cargo fmt 1.31.1

---
 librustzcash/src/equihash.rs                |  3 +--
 librustzcash/src/rustzcash.rs               | 16 +++++++++-------
 zcash_primitives/src/transaction/sighash.rs | 11 ++++++-----
 zip32/src/lib.rs                            | 16 +++++++++-------
 4 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/librustzcash/src/equihash.rs b/librustzcash/src/equihash.rs
index 0509fc2..da2693b 100644
--- a/librustzcash/src/equihash.rs
+++ b/librustzcash/src/equihash.rs
@@ -149,8 +149,7 @@ fn expand_array(vin: &[u8], bit_len: usize, byte_pad: usize) -> Vec<u8> {
                 vout[j + x] = ((
                     // Big-endian
                     acc_value >> (acc_bits + (8 * (out_width - x - 1)))
-                )
-                    & (
+                ) & (
                     // Apply bit_len_mask across byte boundaries
                     (bit_len_mask >> (8 * (out_width - x - 1))) & 0xFF
                 )) as u8;
diff --git a/librustzcash/src/rustzcash.rs b/librustzcash/src/rustzcash.rs
index e04d526..b77b6b2 100644
--- a/librustzcash/src/rustzcash.rs
+++ b/librustzcash/src/rustzcash.rs
@@ -324,9 +324,10 @@ pub extern "system" fn librustzcash_merkle_hash(
             .take(Fr::NUM_BITS as usize)
             .chain(rhs.iter().map(|&x| x).take(Fr::NUM_BITS as usize)),
         &JUBJUB,
-    ).into_xy()
-        .0
-        .into_repr();
+    )
+    .into_xy()
+    .0
+    .into_repr();
 
     // Should be okay, caller is responsible for ensuring the pointer
     // is a valid pointer to 32 bytes that can be mutated.
@@ -914,7 +915,8 @@ pub extern "system" fn librustzcash_sprout_prove(
         unsafe { &SPROUT_GROTH16_PARAMS_PATH }
             .as_ref()
             .expect("parameters should have been initialized"),
-    ).expect("couldn't load Sprout groth16 parameters file");
+    )
+    .expect("couldn't load Sprout groth16 parameters file");
 
     let mut sprout_fs = BufReader::with_capacity(1024 * 1024, sprout_fs);
 
@@ -1077,8 +1079,7 @@ pub extern "system" fn librustzcash_sapling_spend_sig(
 
     // Compute the signature's message for rk/spend_auth_sig
     let mut data_to_be_signed = [0u8; 64];
-    rk.0
-        .write(&mut data_to_be_signed[0..32])
+    rk.0.write(&mut data_to_be_signed[0..32])
         .expect("message buffer should be 32 bytes");
     (&mut data_to_be_signed[32..64]).copy_from_slice(&(unsafe { &*sighash })[..]);
 
@@ -1198,7 +1199,8 @@ pub extern "system" fn librustzcash_sapling_spend_proof(
             unsafe { SAPLING_SPEND_PARAMS.as_ref() }.unwrap(),
             unsafe { SAPLING_SPEND_VK.as_ref() }.unwrap(),
             &JUBJUB,
-        ).expect("proving should not fail");
+        )
+        .expect("proving should not fail");
 
     // Write value commitment to caller
     value_commitment
diff --git a/zcash_primitives/src/transaction/sighash.rs b/zcash_primitives/src/transaction/sighash.rs
index 7a0eb28..e5dcde0 100644
--- a/zcash_primitives/src/transaction/sighash.rs
+++ b/zcash_primitives/src/transaction/sighash.rs
@@ -109,11 +109,12 @@ fn single_output_hash(tx_out: &TxOut) -> Vec<u8> {
 
 fn joinsplits_hash(tx: &TransactionData) -> Vec<u8> {
     let mut data = Vec::with_capacity(
-        tx.joinsplits.len() * if tx.version < SAPLING_TX_VERSION {
-            1802 // JSDescription with PHGR13 proof
-        } else {
-            1698 // JSDescription with Groth16 proof
-        },
+        tx.joinsplits.len()
+            * if tx.version < SAPLING_TX_VERSION {
+                1802 // JSDescription with PHGR13 proof
+            } else {
+                1698 // JSDescription with Groth16 proof
+            },
     );
     for js in &tx.joinsplits {
         js.write(&mut data).unwrap();
diff --git a/zip32/src/lib.rs b/zip32/src/lib.rs
index 70173ea..5b322db 100644
--- a/zip32/src/lib.rs
+++ b/zip32/src/lib.rs
@@ -92,13 +92,13 @@ impl<E: JubjubEngine> ExpandedSpendingKey<E> {
     pub fn read<R: Read>(mut reader: R) -> io::Result<Self> {
         let mut ask_repr = <E::Fs as PrimeField>::Repr::default();
         ask_repr.read_le(&mut reader)?;
-        let ask =
-            E::Fs::from_repr(ask_repr).map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
+        let ask = E::Fs::from_repr(ask_repr)
+            .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
 
         let mut nsk_repr = <E::Fs as PrimeField>::Repr::default();
         nsk_repr.read_le(&mut reader)?;
-        let nsk =
-            E::Fs::from_repr(nsk_repr).map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
+        let nsk = E::Fs::from_repr(nsk_repr)
+            .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
 
         let mut ovk = [0; 32];
         reader.read_exact(&mut ovk)?;
@@ -324,9 +324,11 @@ impl DiversifierKey {
             // Return (j, d_j) if valid, else increment j and try again
             match d_j.g_d::<Bls12>(&JUBJUB) {
                 Some(_) => return Ok((j, d_j)),
-                None => if j.increment().is_err() {
-                    return Err(());
-                },
+                None => {
+                    if j.increment().is_err() {
+                        return Err(());
+                    }
+                }
             }
         }
     }