Github user dkuppitz commented on a diff in the pull request:
https://github.com/apache/tinkerpop/pull/701#discussion_r136081039
--- Diff:
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/MatchStep.java
---
@@ -513,8 +513,15 @@ public int hashCode() {
this.scopeKeys = new HashSet<>();
if (null != this.selectKey)
this.scopeKeys.add(this.selectKey);
- if (this.getNextStep() instanceof WhereTraversalStep ||
this.getNextStep() instanceof WherePredicateStep)
- this.scopeKeys.addAll(((Scoping)
this.getNextStep()).getScopeKeys());
+ final Set<String> endLabels = ((MatchStep<?, ?>)
this.getTraversal().getParent()).getMatchEndLabels();
+ Stream.concat(
+
TraversalHelper.getStepsOfAssignableClassRecursively(WherePredicateStep.class,
this.getTraversal()).stream(),
+
TraversalHelper.getStepsOfAssignableClassRecursively(WhereTraversalStep.class,
this.getTraversal()).stream()).
+ flatMap(s ->
s.getScopeKeys().stream()).filter(endLabels::contains).forEach(this.scopeKeys::add);
--- End diff --
Alternative solution, not using the slow streaming API:
```
TraversalHelper.anyStepRecursively(step -> {
if (step instanceof WherePredicateStep || step instanceof
WhereTraversalStep) {
for (final String key : ((Scoping) step).getScopeKeys()) {
if (endLabels.contains(key)) this.scopeKeys.add(key);
}
}
return false;
}, this.getTraversal());
```
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