Clean-up of several compiler warnings (#519)

eth/utp/growable_buffer.nim

@@ -5,7 +5,7 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 import
-  std/[options, math, sugar]
+  std/[options, math]
 
 export options
 

eth/utp/packets.nim

@@ -7,10 +7,9 @@
 {.push raises: [Defect].}
 
 import
-  std/[monotimes],
   faststreams,
   chronos,
-  stew/[endians2, results, objects, arrayops],
+  stew/[endians2, results, objects],
   ../p2p/discoveryv5/random2
 
 export results, random2

eth/utp/utp_discv5_protocol.nim

@@ -48,7 +48,7 @@ proc hash(x: UtpSocketKey[NodeAddress]): Hash =
 func `$`*(x: UtpSocketKey[NodeAddress]): string =
   "(remoteId: " & $x.remoteAddress.nodeId &
   ", remoteAddress: " & $x.remoteAddress.address &
-  ", rcvId: "& $x.rcvId &
+  ", rcvId: " & $x.rcvId &
   ")"
 
 proc talkReqDirect(p: protocol.Protocol, n: NodeAddress, protocol, request: seq[byte]): Future[void] =

eth/utp/utp_protocol.nim

@@ -7,7 +7,7 @@
 {.push raises: [Defect].}
 
 import
-  std/[tables, options, hashes, sugar, math],
+  std/[tables, options, hashes, math],
   chronos, chronicles,
   ./utp_router,
   ../keys

tests/p2p/test_routing_table.nim

@@ -120,10 +120,10 @@ suite "Routing Table Tests":
     table.replaceNode(table.nodeToRevalidate())
     block:
       # Should return the last node of the replacement cache successfully.
-      let result = table.getNode(lastNode.id)
+      let res = table.getNode(lastNode.id)
       check:
-        result.isSome()
+        res.isSome()
-        result.get() == lastNode
+        res.get() == lastNode
     block:
       # This node should be removed
       check (table.getNode(bucketNodes[bucketNodes.high].id)).isNone()
@@ -186,10 +186,10 @@ suite "Routing Table Tests":
     for n in 0..<BUCKET_SIZE:
       table.replaceNode(table.nodeToRevalidate())
 
-    let result = table.getNode(doubleNode.id)
+    let res = table.getNode(doubleNode.id)
     check:
-      result.isSome()
+      res.isSome()
-      result.get() == doubleNode
+      res.get() == doubleNode
       table.len == 1
 
   test "Double replacement add":
@@ -212,10 +212,10 @@ suite "Routing Table Tests":
     table.replaceNode(table.nodeToRevalidate())
     block:
       # Should return the last node of the replacement cache successfully.
-      let result = table.getNode(replacementNodes[0].id)
+      let res = table.getNode(replacementNodes[0].id)
       check:
-        result.isSome()
+        res.isSome()
-        result.get() == replacementNodes[0]
+        res.get() == replacementNodes[0]
     block:
       # This node should be removed
       check (table.getNode(bucketNodes[bucketNodes.high].id)).isNone()
@@ -258,16 +258,16 @@ suite "Routing Table Tests":
       table.setJustSeen(replacementNodes[i])
 
     for n in replacementNodes:
-      let result = table.getNode(n.id)
+      let res = table.getNode(n.id)
       check:
-        result.isSome()
+        res.isSome()
-        result.get() == n
+        res.get() == n
 
     for i in 0..<int(BUCKET_SIZE/2):
-      let result = table.getNode(bucketNodes[i].id)
+      let res = table.getNode(bucketNodes[i].id)
       check:
-        result.isSome()
+        res.isSome()
-        result.get() == bucketNodes[i]
+        res.get() == bucketNodes[i]
 
   test "Ip limits on bucket":
     let node = generateNode(PrivateKey.random(rng[]))

tests/trie/test_bin_trie.nim

@@ -12,7 +12,7 @@ suite "binary trie":
   test "different order insert":
     randomize()
     var kv_pairs = randKVPair()
-    var result = zeroHash
+    var res = zeroHash
     for _ in 0..<1: # repeat 3 times
       var db = newMemoryDB()
       var trie = initBinaryTrie(db)
@@ -24,12 +24,12 @@ suite "binary trie":
         let y = c.value
         check y == x
 
-      check result == zeroHash or trie.getRootHash() == result
+      check res == zeroHash or trie.getRootHash() == res
-      result = trie.getRootHash()
+      res = trie.getRootHash()
 
       # insert already exist key/value
       trie.set(kv_pairs[0].key, kv_pairs[0].value)
-      check trie.getRootHash() == result
+      check trie.getRootHash() == res
 
       # Delete all key/value
       random.shuffle(kv_pairs)

tests/utp/test_protocol_integration.nim

@@ -7,10 +7,9 @@
 {.used.}
 
 import
-  std/[sequtils, tables, options, sugar],
+  std/[tables, options],
   chronos,
   testutils/unittests,
-  ./test_utils,
   ../../eth/utp/utp_router,
   ../../eth/utp/utp_protocol,
   ../../eth/keys,

tests/utp/utp_packet_test_vectors.nim

@@ -8,7 +8,7 @@
 
 import
   std/options,
-  stew/[byteutils, bitops2],
+  stew/byteutils,
   unittest2,
   ../../eth/utp/packets,
   ../../eth/keys