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https://issues.apache.org/jira/browse/GROOVY-9510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17751151#comment-17751151
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Leonard Brünings commented on GROOVY-9510:
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[~emilles] can you provide some example how that would look, all I know is how
to do this for method calls.
I have tried numerous times to make sense of the GDSL/DSLD, but the examples
are rather limited and I couldn't find any that deal with closures for
annotations.
It is not for lack of trying that we don't have those in the Spock's GDSL/DSLD
definitions yet.
bq. Any change to allow @ClosureParams or @DelegatesTo in new positions would
require IDE changes to support for purposes of content assist, syntax
highlighting, etc.
I don't really think that is an argument against doing this, as IDEs have to
support new features all the time and have done so.
There were also GDSLs/DSLDs for features that are now described with Groovy's
built-in annotations, following that logic it wouldn't have made sense to add
those annotations at all.
> DelegatesTo and similar for annotation member methods
> -----------------------------------------------------
>
> Key: GROOVY-9510
> URL: https://issues.apache.org/jira/browse/GROOVY-9510
> Project: Groovy
> Issue Type: Bug
> Reporter: Björn Kautler
> Priority: Major
> Labels: annotations
>
> If you have an annotation with a closure field like for example this in Spock:
> {code:java}
> @Retention(RetentionPolicy.RUNTIME)
> @Target({ElementType.TYPE, ElementType.METHOD})
> @ExtensionAnnotation(RequiresExtension.class)
> public @interface Requires {
> Class<? extends Closure> value();
> }{code}
> you can use it like
> {code:java}
> @Requires({ os.windows }){code}
> But I see no way to add IDE-hints for that closure like
> {{@DelegatesTo(PreconditionContext.class)}} as it is restriced to parameters.
> It would be nice if you could also annotate annotation member methods (and if
> IDEs would then support that too).
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