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https://issues.apache.org/jira/browse/GROOVY-11090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17731276#comment-17731276
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Eric Milles commented on GROOVY-11090:
--------------------------------------
This type of thing should extend to lambda expressions under TypeCheced and
maybe CompileStatic. It may also work when the closure/lambda target is a SAM
type.
> STC: closure param type inference for tuple
> -------------------------------------------
>
> Key: GROOVY-11090
> URL: https://issues.apache.org/jira/browse/GROOVY-11090
> Project: Groovy
> Issue Type: Bug
> Reporter: Eric Milles
> Assignee: Eric Milles
> Priority: Minor
> Fix For: 5.0.0-alpha-1
>
>
> Consider the following:
> {code:groovy}
> @groovy.transform.TypeChecked
> void test() {
> def list_of_tuple2 = ['a','b'].withIndex()
> print list_of_tuple2.collect{ s,i -> s+i }
> }
> test()
> {code}
> STC rejects this script, saying "Incorrect number of parameters. Expected 1
> but found 2" or if "s,i" is "String s, int i" a type error.
> However it runs successfully without STC, printing "[a0, b1]"
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