[GROOVY-9292] Compilation error when accessing a protected super class field from a closure using owner, delegate or thisObject qualifier (different package)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.8, 3.0.0-rc-1
• Fix Version/s: 3.0.0-rc-2, 2.5.13
• Component/s: Static compilation
• Assignee: Daniel Sun
• Reporter: Daniel Sun
• Created: 28/Oct/19 13:33
• Updated: 11/Jul/20 03:50
• Resolved: 29/Oct/19 14:42

Description

Compilation fails when accessing a protected(via `thisObject`, `owner` and `delegate`)/package-private super class field from inside a closure:

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"'

Issue Links

• is cloned by: GROOVY-9293 Compilation error when accessing package-private super class field using `this` from inside a closure
• relates to: GROOVY-9288 Compilation error when accessing a protected super class field from inside a closure
• links to: GitHub Pull Request #1048
• links to: GitHub Pull Request #1050