Remove apply

Author: crusaderky

array_api_compat/common/_helpers.py

@@ -996,18 +996,6 @@ def set(self, y, /, **kwargs):
         x[self.idx] = y
         return x
 
-    def apply(self, ufunc, /, **kwargs):
-        """ufunc.at(x, idx)"""
-        if is_cupy_array(self.x) or is_torch_array(self.x) or is_dask_array(self.x):
-            # ufunc.at not implemented
-            return self.set(ufunc(self.x[self.idx]), **kwargs)
-
-        res, x = self._common("apply", ufunc, **kwargs)
-        if res is not None:
-            return res
-        ufunc.at(x, self.idx)
-        return x
-
     def _iop(
         self, at_op: str, elwise_op: Callable[[Array, Array], Array], y: Array, **kwargs
     ):

tests/test_at.py

@@ -63,7 +63,6 @@ def x(request):
 @pytest.mark.parametrize(
     "op,arg,expect",
     [
-        ("apply", np.negative, [10, -20, -30]),
         ("set", 40, [10, 40, 40]),
         ("add", 40, [10, 60, 70]),
         ("subtract", 100, [10, -80, -70]),