[jira] [Created] (GROOVY-8820) Closure inside trait does cannot use Closure's delegate variables

["Renato Athaydes (JIRA)" <ji...@apache.org>]

Renato Athaydes created GROOVY-8820:
---------------------------------------

             Summary: Closure inside trait does cannot use Closure's delegate variables
                 Key: GROOVY-8820
                 URL: https://issues.apache.org/jira/browse/GROOVY-8820
             Project: Groovy
          Issue Type: Bug
    Affects Versions: 2.5.2, 3.0.0-alpha-3, 2.4.15
         Environment: Groovy Version: 3.0.0-alpha-3 JVM: 1.8.0_171 Vendor: Oracle Corporation OS: Mac OS X
            Reporter: Renato Athaydes


The following code throws an error at runtime:

 
{code:java}
trait T {
    def doIt() {
        return {
            n = 1
        }
    }
}

class Delegate {
    int n
}
    
class Tish implements T {
    def go() {
        def closure = doIt()
        def d = new Delegate()
        closure.delegate = d
        closure()
        assert d.n == 1
        println "All good!"
    }
}

new Tish().go(){code}
 

This is the error I see on Groovy 3.0.0-alpha-3 (same as previous versions):

 
{code:java}
groovy.lang.MissingPropertyException: No such property: n for class: Tish{code}
 

This is expected to work because, outside of traits, it does: this runs successfully:

 
{code:java}
class T {
    def doIt() {
        return {
            n = 1
        }
    }
}

class Delegate {
    int n
}
    
class Tisha extends T {
    def go() {
        def closure = doIt()
        def d = new Delegate()
        closure.delegate = d
        closure()
        assert d.n == 1
        println "All good!"
    }
}

new Tisha().go(){code}
 



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)