dev: use with_capacity

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Next release
 
+- dev: change `Vec::new` to `Vec::with_capacity` where possible.
 - chore(rpc): clean trace api
 - feat(rpc): added state diff real value in trace api
 - chore: update cairo-vm commit and update gas per op

crates/primitives/snos-output/src/codec.rs

@@ -117,7 +117,7 @@ impl<T: SnosCodec> SnosCodec for Vec<T> {
 
     fn decode(input: &mut FeltReader) -> Result<Self, FeltReaderError> {
         let mut segment_reader = FeltReader::new(input.read_segment()?);
-        let mut elements: Vec<T> = Vec::new();
+        let mut elements: Vec<T> = Vec::with_capacity(segment_reader.remaining_len());
         while segment_reader.remaining_len() > 0 {
             elements.push(T::decode(&mut segment_reader)?);
         }

starknet-e2e-test/src/starknet_sovereign.rs

@@ -160,7 +160,8 @@ impl StarknetSovereign {
     }
 
     pub async fn message_to_l1_exists(&self, message: &MessageL2ToL1) -> bool {
-        let mut payload: Vec<u8> = Vec::new();
+        let message_felt_size = message.size_in_felts();
+        let mut payload: Vec<u8> = Vec::with_capacity(32 * message_felt_size);
         message.clone().into_encoded_vec().into_iter().for_each(|felt| payload.append(&mut felt.bytes().to_vec()));
 
         let msg_hash = keccak256(payload);

starknet-rpc-test/src/lib.rs

@@ -170,7 +170,7 @@ impl MadaraClient {
         &mut self,
         transactions: Vec<Transaction<'_>>,
     ) -> anyhow::Result<Vec<Result<TransactionResult, SendTransactionError>>> {
-        let mut results = Vec::new();
+        let mut results = Vec::with_capacity(transactions.len());
         for tx in transactions {
             let result = tx.send().await;
             results.push(result);
@@ -184,7 +184,7 @@ impl MadaraClient {
         &mut self,
         transactions: Vec<Transaction<'_>>,
     ) -> Vec<Result<TransactionResult, SendTransactionError>> {
-        let mut results = Vec::new();
+        let mut results = Vec::with_capacity(transactions.len());
         for tx in transactions {
             let result = tx.send().await;
             results.push(result);