added SliceIterator

Author: jkingstonc

README.md

@@ -58,6 +58,8 @@ v.display()
 
 ### Bugs
 
+- creating 2 long lists causes the first list to be an element of the second
+  list?
 - fix tuple parsing...
 - methods with self and an arg don't work due to calling convention
   - i suspect its because were not allocating space for the extra self at

example/test.gila

@@ -3,8 +3,17 @@
 
 
 
+l1 = [3,4,2,1,3,3]
 
+l2 = [4,3,5,3,9,3]
 
 
-for _ in 0..1_000
-    print("hi")
+
+
+s = SliceIterator(counter=0,s=l1)
+
+print(s)
+
+
+for _ in s
+    print("foo")

prelude/prelude.gila

@@ -20,4 +20,15 @@ end
 __iter fn(self: RangeIterator) -> bool do
     self.counter = self.counter + 1
     return self.counter==self.limit+1
+end
+
+
+SliceIterator type
+    counter: u32
+    s: any[]
+end
+
+__iter fn(self: SliceIterator) -> bool do
+    self.counter = self.counter + 1
+    return self.counter == len(self.s)
 end