Merge branch 'master' into symbolchecks

# Conflicts:
#	tests/test.nim

leveldbstatic.nim

@@ -77,9 +77,11 @@ type
   LevelDbException* = object of CatchableError
 
   IterNext* = proc(): (string, string) {.gcsafe, closure.}
+  IterDispose* = proc() {.gcsafe, closure.}
   LevelDbQueryIter* = ref object
     finished*: bool
     next*: IterNext
+    dispose*: IterDispose
 
 const
   version* = block:
@@ -477,8 +479,13 @@ proc queryIter*(self: LevelDb, prefix: string = "", keysOnly: bool = false, skip
     else:
       return (keyStr, valueStr)
   
+  proc dispose() {.gcsafe, closure.} =
+    if not iter.finished:
+      iter.closeIter(iterPtr)
+
   iter.finished = false
   iter.next = getNext
+  iter.dispose = dispose
   return iter
 
 proc removeDb*(name: string) =

leveldbstatic.nimble

@@ -1,6 +1,6 @@
 # Package
 
-version       = "0.1.2"
+version       = "0.1.3"
 author        = "leveldbstatic authors"
 description   = "Statically linked LevelDB wrapper for Nim"
 license       = "MIT"

tests/test.nim

@@ -241,6 +241,22 @@ suite "leveldb queryIter":
       iter.next() == empty
       iter.finished
     
+  test "iterate until disposed":
+    let iter = db.queryIter()
+    check:
+      not iter.finished
+      iter.next() == (k1, v1)
+      not iter.finished
+      iter.next() == (k2, v2)
+      not iter.finished
+    
+    iter.dispose()
+
+    check:
+      iter.finished
+      iter.next() == empty
+      iter.finished
+
   test "skip":
     let iter = db.queryIter(skip = 1)
     check: