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https://issues.apache.org/jira/browse/GROOVY-9292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16961172#comment-16961172
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Eric Milles commented on GROOVY-9292:
-------------------------------------
Oh, that's interesting. Adding a "this." qualifier works within and across
packages. However adding "owner." or "thisObject." only works within the same
package. I wonder if there is a package check in or down the line from
StaticTypeCheckingVisitor that is testing the "receiver" and not the "sender"
or vice versa.
> Compilation error when accessing a protected super class field from a closure
> using owner, delegate or thisObject qualifier (different package)
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: GROOVY-9292
> URL: https://issues.apache.org/jira/browse/GROOVY-9292
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 2.5.8, 3.0.0-rc-1
> Reporter: Daniel Sun
> Assignee: Daniel Sun
> Priority: Major
>
> Compilation fails when accessing a protected(via `thisObject`, `owner` and
> `delegate`)/package-private super class field from inside a closure:
> {code:java}
> new GroovyShell().with {
> evaluate '''
> package a
>
> abstract class Abstract {
> protected String protectedField = 'field'
> }
> assert true
> '''
> evaluate '''
> package b
>
> @groovy.transform.CompileStatic
> class Concrete extends a.Abstract {
> String doThing() {
> 'something'.with {
> return owner.protectedField // `thisObject.protectedField`,
> `delegate.protectedField` fails too
> }
> }
> }
> assert true
> '''
> evaluate 'assert new b.Concrete().doThing() == "field"'
> {code}
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