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https://issues.apache.org/jira/browse/GROOVY-9058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16810904#comment-16810904
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Eric Milles commented on GROOVY-9058:
-------------------------------------
I tried to make the minimal change since I do not have groovy core downloaded
to run the tests. The {{if (lastArg && inferredType.isArray())}} seems to have
something to do with vargs handling. I'm not sure its exact purpose without
some examples.
In the case of this bug, {{originType}} is {{Object}} and {{inferredType}} is
{{Object[]}}. We want to keep it as {{Object[]}} since that is the element
type of the collection being iterated over. All I can say with confidence is
that this block is where the incorrect inference type is being set.
> each parameter type not correctly inferenced
> --------------------------------------------
>
> Key: GROOVY-9058
> URL: https://issues.apache.org/jira/browse/GROOVY-9058
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 2.5.6
> Reporter: Mauro Molinari
> Priority: Major
>
> Consider this Java class:
> {code:java}
> package test51;
> import java.util.List;
> public class Foo {
> public List<Object[]> bar() { return null; }
> }{code}
> and this Groovy class:
> {code:java}
> package test51
> import groovy.transform.CompileStatic
> @CompileStatic
> class Test51 {
> protected void foo() {
> List<Object[]> foo = new Foo().bar()
> foo.each { row ->
> def o = row[0]
> }
> }
>
> List bar() {
> }
> }{code}
> This produces a compiler error because {{row}} is resolved as {{Object}}
> rather than {{Object[]}}.
> A workaround is to declare {{row}} as {{Object[] row}} in the closure
> parameter list.
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