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https://issues.apache.org/jira/browse/GROOVY-7956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15551778#comment-15551778
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Graeme Rocher commented on GROOVY-7956:
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Cedric - Excellent idea!
> Allow @DelegatesTo on named arguments
> -------------------------------------
>
> Key: GROOVY-7956
> URL: https://issues.apache.org/jira/browse/GROOVY-7956
> Project: Groovy
> Issue Type: New Feature
> Components: GEP
> Reporter: Graeme Rocher
>
> In order to aid static compilation for builders we have {{@DelegatesTo}}
> which allows statically compiled code to know what the delegate of a closure
> is.
> This proposal is to allow {{@DelegatesTo}} on {{Map}} types such that IDEs
> and the static compiler can resolve the target type the named arguments are
> to be used on.
> For example:
> {code}
> class Farm {
> void animal(@DelegatesTo(Animal) Map arguments,
> @DelegatesTo(AnimalBuilder) Closure callable) {
> def animal = new Animal(arguments)
> // handle closure
> }
> }
> class Animal { String name }
> {code}
> The following code would then fail to compile :
> {code}
> def farm = new Farm()
> // compilation failure, no name property on Animal
> farm.animal(nam: "Dog") {
> }
> {code}
> It would then be down to IDEs to also provide support for code completion etc.
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