Check to ensure no duplicate indices in Copy

nengo · Oct 6, 2017 · 899f217 · 899f217
1 parent e70abc4
commit 899f217
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/nengo_ocl/simulator.py b/nengo_ocl/simulator.py
@@ -681,6 +681,13 @@ def plan_Copy(self, ops, legacy=False):
             plans.append(plan_copy(self.queue, X, Y, incs))
 
         if ops:
+            dupl = lambda s: (
+                s is not None
+                and not (isinstance(s, np.ndarray) and s.dtype == np.bool)
+                and len(s) != len(set(s)))
+            if any(dupl(op.src_slice) or dupl(op.dst_slice) for op in ops):
+                raise NotImplementedError("Duplicates in indices")
+
             X = self.all_data[[self.sidx[op.src] for op in ops]]
             Y = self.all_data[[self.sidx[op.dst] for op in ops]]
             inds = lambda ary, i: np.arange(ary.size, dtype=np.int32)[