Исправлен итератор в std::range для реверсивных промежутков. Fix #3

Author: aNNiMON

src/main/java/com/annimon/ownlang/modules/std/std_range.java

@@ -134,7 +134,7 @@ public Iterator<Value> iterator() {
 
                     @Override
                     public boolean hasNext() {
-                        return value < toInt;
+                        return (stepInt > 0) ? (value < toInt) : (value > toInt);
                     }
 
                     @Override
@@ -154,7 +154,7 @@ public void remove() { }
 
                 @Override
                 public boolean hasNext() {
-                    return value < to;
+                    return (step > 0) ? (value < to) : (value > to);
                 }
 
                 @Override

src/test/resources/modules/std/range.own

@@ -28,6 +28,18 @@ def testRangeParamsReversed() {
   assertEquals(5, x[5])
 }
 
+def testRangeIterator() {
+  x = range(0, 9, 2)
+  arr = reduce(x, [], def(acc, e) = acc += e)
+  assertEquals([0, 2, 4, 6, 8], arr)
+}
+
+def testRangeReversedIterator() {
+  x = range(20, 9, -2)
+  arr = reduce(x, [], def(acc, e) = acc += e)
+  assertEquals([20, 18, 16, 14, 12, 10], arr)
+}
+
 def testRangeLength() {
   assertEquals(10, length(range(0, 10, 1)))
   assertEquals(5, length(range(0, 10, 2)))