!13 Check input shape for `NMSWithMask` op

Merge pull request !13 from seatea/NMSWithMask-check-shape

mindspore/ops/operations/math_ops.py

@@ -1745,11 +1745,14 @@ class NMSWithMask(PrimitiveWithInfer):
         self.init_prim_io_names(inputs=['bboxes'], outputs=['selected_boxes', 'selected_idx', 'selected_mask'])
 
     def infer_shape(self, bboxes_shape):
+        validator.check_integer("bboxes rank", len(bboxes_shape), 2, Rel.EQ)
+        validator.check_integer("bboxes.shape()[0]", bboxes_shape[0], 0, Rel.GT)
+        validator.check_integer("bboxes.shape()[1]", bboxes_shape[1], 5, Rel.EQ)
         num = bboxes_shape[0]
-        validator.check_integer("bboxes_shape[0]", num, 0, Rel.GT)
         return (bboxes_shape, (num,), (num,))
 
     def infer_dtype(self, bboxes_dtype):
+        validator.check_subclass("bboxes_dtype", bboxes_dtype, mstype.tensor)
         validator.check_typename("bboxes_dtype", bboxes_dtype, [mstype.float16, mstype.float32])
         return (bboxes_dtype, mstype.int32, mstype.bool_)