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https://issues.apache.org/jira/browse/GROOVY-9510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17751326#comment-17751326
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Eric Milles edited comment on GROOVY-9510 at 8/5/23 4:55 PM:
-------------------------------------------------------------
Here is a more complete example that handles the 3 annotation types and checks
for closure containment. The hover is not so good, but that's a greclipse
problem that I can remedy. And I do have some duplication in proposals because
"method name:'getInstance', ..." and "delegatesTo type:..." both provide
"getInstance".
{code:groovy}
import org.codehaus.groovy.ast.*
import org.codehaus.groovy.ast.expr.*
boolean isInClosure(ClosureExpression closure, ASTNode node) {
// leverage closure.visit(...) to determine if node is inside
}
def hasPrecondition = { annotatedBy(name('spock.lang.Requires') |
name('spock.lang.IgnoreIf') | name('spock.lang.PendingFeatureIf')) }
contribute(inClosure() & isThisType() &
enclosingClass(subType('spock.lang.Specification')) &
(enclosingClass(conditions: hasPrecondition()) | enclosingMethod(conditions:
hasPrecondition()))) {
for (AnnotationNode pre : conditions) {
Expression value= pre.getMember('value')
if (value instanceof ClosureExpression && isInClosure(value, currentNode)) {
property name: 'instance', type: currentType, readOnly: true
method name: 'getInstance', type: currentType, params: [:]
property name: 'shared', type: currentType, readOnly: true
method name: 'getShared', type: currentType, params: [:]
// must follow method/property contributions that PreconditionContext
also provides
delegatesTo type:
resolver.resolve('org.spockframework.runtime.extension.builtin.PreconditionContext')
provider = 'Spock framework'
return
}
}
}
{code}
!screenshot-1.png!
was (Author: emilles):
Here is a more complete example that handles the 3 annotation types and checks
for closure containment. The hover is not so good, but that's a greclipse
problem that I can remedy. And I do have some duplication in proposals because
"method name:'getInstance', ..." and "delegatesTo type:..." both provide
"getInstance".
{code:groovy}
import org.codehaus.groovy.ast.*
import org.codehaus.groovy.ast.expr.*
boolean isInClosure(ClosureExpression closure, ASTNode node) {
// leverage closure.visit(...) to determine if node is within
}
def hasPrecondition = { annotatedBy(name('spock.lang.Requires') |
name('spock.lang.IgnoreIf') | name('spock.lang.PendingFeatureIf')) }
contribute(inClosure() & isThisType() &
enclosingClass(subType('spock.lang.Specification')) &
(enclosingClass(conditions: hasPrecondition()) | enclosingMethod(conditions:
hasPrecondition()))) {
for (AnnotationNode pre : conditions) {
Expression value= pre.getMember('value')
if (value instanceof ClosureExpression && isInClosure(value, currentNode)) {
property name: 'instance', type: currentType, readOnly: true
method name: 'getInstance', type: currentType, params: [:]
property name: 'shared', type: currentType, readOnly: true
method name: 'getShared', type: currentType, params: [:]
// must follow method/property contributions that PreconditionContext
also provides
delegatesTo type:
resolver.resolve('org.spockframework.runtime.extension.builtin.PreconditionContext')
provider = 'Spock framework'
return
}
}
}
{code}
!screenshot-1.png!
> 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
> Attachments: image-2023-08-04-11-04-29-834.png, screenshot-1.png
>
>
> 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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