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https://issues.apache.org/jira/browse/TINKERPOP-2959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17901267#comment-17901267
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ASF GitHub Bot commented on TINKERPOP-2959:
-------------------------------------------
vkagamlyk commented on code in PR #2919:
URL: https://github.com/apache/tinkerpop/pull/2919#discussion_r1858962065
##########
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/decoration/SideEffectStrategy.java:
##########
@@ -60,7 +61,11 @@ public static <A> void addSideEffect(final
TraversalStrategies traversalStrategi
strategy = cloneStrategy;
traversalStrategies.addStrategies(strategy);
}
- strategy.sideEffects.add(new Triplet<>(key, value instanceof Supplier
? (Supplier) value : new ConstantSupplier<>(value), reducer));
+
+ // don't want the GValue to leak beyond strategy application or else
the Supplier will start producing it
+ // during execution
+ final ConstantSupplier initialValue = value instanceof GValue ? new
ConstantSupplier<>(((GValue) value).get()) : new ConstantSupplier<>(value);
+ strategy.sideEffects.add(new Triplet<>(key, value instanceof Supplier
? (Supplier) value : initialValue, reducer));
Review Comment:
can `value` be of `Supplier<GValue>` type?
> Allow the grammar to support parameters
> ---------------------------------------
>
> Key: TINKERPOP-2959
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2959
> Project: TinkerPop
> Issue Type: Improvement
> Components: language
> Affects Versions: 3.6.4
> Reporter: Stephen Mallette
> Assignee: Stephen Mallette
> Priority: Major
> Fix For: 3.7.0
>
>
> Allow the grammar to support parameters similar to how the groovy engine does
> like, {{g.inject(x,y,z)}}. Doing this will make it easier for a transition
> away from the groovy engine as a lot of Gremlin in the world today uses
> parameters. The grammar may have to come with some limitations though as
> groovy is wide open in terms of what can be treated as a variable. Probably
> going to keep parameters tied to primitives, collections and tokens/enums
> like {{Order}} and {{Scope}}. Collections themselves will not contain
> parameters and things like a {{Traversal}} or {{P}} cannot be treated as one.
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