fix issue with multi-dimensional binary views

Author: IvanGrigorik

pykokkos/interface/views.py

@@ -196,9 +196,13 @@ def __setitem__(
             self.data[key] = value
 
     def __bool__(self):
-        # TODO: more complete implementation
-        if self.shape == (1,) or self.shape == ():
-            return bool(self.data)
+        if self.shape == () or self.size == 1:
+            return bool(self.data.flat[0])
+        # todo: add complete implementation later
+        raise ValueError(
+            "The truth value of a View with more than one element is ambiguous. "
+            "Use a.any() or a.all()"
+        )
 
     def __len__(self) -> int:
         """
@@ -542,11 +546,10 @@ def __eq__(self, other):
         return equal(self, new_other)
 
     def __hash__(self):
-        try:
-            hash_value = hash(self.array)
-        except TypeError:
-            hash_value = hash(self.array.data.tobytes())
-        return hash_value
+        # Identity-based hash ensures WeakSet never triggers __eq__ for
+        # deduplication. View.__eq__ returns a View (not a bool), so
+        # content-based hash would cause WeakSet.add to call bool(View) → TypeError.
+        return id(self)
 
     def __index__(self) -> int:
         return int(self.data[0])
@@ -720,8 +723,7 @@ def __mul__(self, other):
                 return result
 
     def __hash__(self):
-        hash_value = hash(self.array)
-        return hash_value
+        return id(self)
 
 
 def from_numpy(