Merge branch 'devel' of https://github.com/Araq/Nimrod into devel

lib/core/macros.nim

@@ -516,7 +516,7 @@ proc last*(node: PNimrodNode): PNimrodNode {.compileTime.} = node[node.high]
 
 
 const
-  RoutineNodes* = {nnkProcDef, nnkMethodDef, nnkDo, nnkLambda}
+  RoutineNodes* = {nnkProcDef, nnkMethodDef, nnkDo, nnkLambda, nnkIteratorDef}
   AtomicNodes* = {nnkNone..nnkNilLit}
   CallNodes* = {nnkCall, nnkInfix, nnkPrefix, nnkPostfix, nnkCommand, 
     nnkCallStrLit, nnkHiddenCallConv}

lib/pure/collections/sets.nim

@@ -241,3 +241,7 @@ proc `<=`*[A](s, t: TSet[A]): bool =
       
 proc `==`*[A](s, t: TSet[A]): bool =
   s.counter == t.counter and s <= t
+
+proc map*[A, B](data: TSet[A], op: proc (x: A): B {.closure.}): TSet[B] =
+  result = initSet[B]()
+  for item in data: result.incl(op(item))