Address ruff warning

onnxscript/rewriter/generic_pattern.py

@@ -298,7 +298,15 @@ def _match_backward(
             return self.none(starting_node, inspect.currentframe().f_lineno)
 
         for graph_input, pattern_input in zip(graph_node.inputs, pattern_node.inputs):
-            if len(list(graph_input.uses())) != len(list(pattern_input.uses())):
+            # Intermediate values in the pattern must have the same number of uses
+            # in the graph for a valid match. By design, this esnures patterns where
+            # intermediate values have extra uses in the graph do NOT match.
+            # However, pattern-input-values may have extra uses. This is because
+            # pattern-inputs will not be removed by pattern-replacement, but
+            # intermediate values will be removed.
+            if pattern_input.producer() is not None and len(list(graph_input.uses())) != len(
+                list(pattern_input.uses())
+            ):
                 self._hint(
                     "BACKWARD: one input is used outside the pattern",
                     "-- pattern",
@@ -423,12 +431,12 @@ def _match_values_forward(
             return match_count
         if len(free) < len(pattern_node_users_not_matched):
             # Not enough successors to match the remaining patterns.
-            return self.none(node, inspect.currentframe().f_lineno)
+            return self.none(starting_node, inspect.currentframe().f_lineno)
         if len(pattern_node_users_not_matched) == len(free) == 1:
             # Only one option again.
             graph_node = free[0]
             if pattern_node_users_not_matched[0].op_identifier() != graph_node.op_identifier():
-                return self.none(node, inspect.currentframe().f_lineno)
+                return self.none(starting_node, inspect.currentframe().f_lineno)
 
             key = pattern_node_users_not_matched[0]
             if self.verbose >= 10:
@@ -461,11 +469,11 @@ def _match_values_forward(
                 "-- model-matched",
                 pattern_node_users_matched,
             )
-            return self.none(node, inspect.currentframe().f_lineno)
+            return self.none(starting_node, inspect.currentframe().f_lineno)
         for k, v in ec.items():
             if gc[k] < v:
                 # Not enough types to match.
-                return self.none(node, inspect.currentframe().f_lineno)
+                return self.none(starting_node, inspect.currentframe().f_lineno)
 
         # At this stage, we know matching the types is possible.
         # We first mark whatever is possible.