From 517d08c6372b20c62fe689ea21d3cb6a9bf28e19 Mon Sep 17 00:00:00 2001
From: Greg Fitzgerald <greg@solana.com>
Date: Fri, 29 Jun 2018 10:30:09 -0600
Subject: [PATCH] Cleanup

---
 src/bank.rs              | 10 +++++-----
 src/bin/wallet.rs        |  2 +-
 src/request_processor.rs |  2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/bank.rs b/src/bank.rs
index 563d7f67a..e7a030182 100644
--- a/src/bank.rs
+++ b/src/bank.rs
@@ -434,16 +434,16 @@ impl Bank {
         self.transaction_count.load(Ordering::Relaxed)
     }
 
-    pub fn check_signature(&self, signature: &Signature) -> bool {
+    pub fn has_signature(&self, signature: &Signature) -> bool {
         let last_ids_sigs = self.last_ids_sigs
             .read()
             .expect("'last_ids_sigs' read lock");
         for (_hash, signatures) in last_ids_sigs.iter() {
-            if let Some(_sig) = signatures.get(signature) {
+            if signatures.contains(signature) {
                 return true;
             }
         }
-        return false;
+        false
     }
 }
 
@@ -634,13 +634,13 @@ mod tests {
     }
 
     #[test]
-    fn test_check_signature() {
+    fn test_has_signature() {
         let mint = Mint::new(1);
         let bank = Bank::new(&mint);
         let sig = Signature::default();
         bank.reserve_signature_with_last_id(&sig, &mint.last_id())
             .expect("reserve signature");
-        assert!(bank.check_signature(&sig));
+        assert!(bank.has_signature(&sig));
     }
 
     #[test]
diff --git a/src/bin/wallet.rs b/src/bin/wallet.rs
index 03b4460c4..1d85ecee2 100644
--- a/src/bin/wallet.rs
+++ b/src/bin/wallet.rs
@@ -69,7 +69,7 @@ fn main() -> io::Result<()> {
     let id = if matches.opt_present("m") {
         read_mint(matches.opt_str("m").unwrap())
     } else {
-        println!("No mint found!");
+        eprintln!("No mint found!");
         exit(1);
     };
 
diff --git a/src/request_processor.rs b/src/request_processor.rs
index a247840a6..f55bdf37e 100644
--- a/src/request_processor.rs
+++ b/src/request_processor.rs
@@ -41,7 +41,7 @@ impl RequestProcessor {
                 Some(rsp)
             }
             Request::GetSignature { signature } => {
-                let signature_status = self.bank.check_signature(&signature);
+                let signature_status = self.bank.has_signature(&signature);
                 let rsp = (Response::SignatureStatus { signature_status }, rsp_addr);
                 info!("Response::Signature {:?}", rsp);
                 Some(rsp)