saavannanavati commented on a change in pull request #12352:
URL: https://github.com/apache/beam/pull/12352#discussion_r471162104
##########
File path: sdks/python/apache_beam/typehints/typecheck.py
##########
@@ -265,3 +268,89 @@ def visit_transform(self, applied_transform):
transform.get_type_hints(),
applied_transform.full_label),
applied_transform.full_label)
+
+
+class PerformanceTypeCheckVisitor(pipeline.PipelineVisitor):
+
+ _in_combine = False
+ combine_classes = (
+ core.CombineFn,
+ core.CombinePerKey,
+ core.CombineValuesDoFn,
+ core.CombineValues,
+ core.CombineGlobally)
+
+ def enter_composite_transform(self, applied_transform):
+ if isinstance(applied_transform.transform, self.combine_classes):
+ self._in_combine = True
+
+ def leave_composite_transform(self, applied_transform):
+ if isinstance(applied_transform.transform, self.combine_classes):
+ self._in_combine = False
+
+ def visit_transform(self, applied_transform):
+ transform = applied_transform.transform
+ if isinstance(transform, core.ParDo) and not self._in_combine:
+ # Prefix label with 'ParDo' if necessary
Review comment:
Okay, I'll remove it. With regards to the JIRA issue filed from our
[conversation](https://github.com/apache/beam/pull/12352#discussion_r470939725)
about this, I'll move the TODO to where 'ParDo' is currently being prefixed for
other error messages
[here](https://github.com/apache/beam/blob/3e7371eae49b7aba142c8c0e898a62f583b49276/sdks/python/apache_beam/typehints/typecheck.py#L93).
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