groovy

CLONE - import of static nested classes in external groovy files is broken

Details

  • Type: Sub-task Sub-task
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: 1.7.3
  • Fix Version/s: None
  • Component/s: Compiler
  • Labels:
    None
  • Number of attachments :
    0

Description

Splitting off problematic but critical case of resolving static nested and inner classes in external groovy files from GROOVY-4267. Copying Roshan's example from that issue:

Test.groovy
import static Outer.*
// import static Outer.Inner // also fails
// import Outer.Inner        // also fails

assert Inner.class.name != null
Outer.groovy
class Outer {
    static class Inner {}
}

Output:

Caught: groovy.lang.MissingPropertyException: No such property: Inner for class: Test
        at Test.run(Test.groovy:4)

Error message is slightly different for non-static import:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Test.groovy: 2: unable to resolve class Outer.Inner
 @ line 2, column 1.
   import Outer.Inner
   ^
1 error

Activity

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Paul King made changes -
Field Original Value New Value
Assignee Paul King [ paulk ]
Fix Version/s 1.8-beta-1 [ 16013 ]
Fix Version/s 1.7.4 [ 16563 ]
Description Given this Java class (note the _static_ inner class):
{code}
package pkg;

public class Outer {
    public static class Inner {}
}
{code}
The inner class can be printed from Java using this:
{code}
import pkg.Outer.Inner;
//import static pkg.Outer.Inner;

public class Main {
    public static void main(String[] args) {
        System.out.println(Inner.class.getName());
    }
}
{code}
Note that both the non-static or static version (shown commented out) will work.

For Groovy, the non-static version works:
{code}
import pkg.Outer.Inner

println Inner.class.name
{code}

but the static version doesn't:
{code}
import static pkg.Outer.Inner

println Inner.class.name
{code}
instead, it fails with:
{noformat}
Caught: groovy.lang.MissingPropertyException: No such property: Inner for class: TestStaticImport
{noformat}
Splitting off problematic but critical case of resolving static nested and inner classes in external groovy files from GROOVY-4267. Copying Roshan's example from that issue:

{code:title=Test.groovy}
import static Outer.*
// import static Outer.Inner // also fails
// import Outer.Inner // also fails

assert Inner.class.name != null
{code}

{code:title=Outer.groovy}
class Outer {
    static class Inner {}
}
{code}

Output:
{noformat}
Caught: groovy.lang.MissingPropertyException: No such property: Inner for class: Test
        at Test.run(Test.groovy:4)
{noformat}
Error message is slightly different for non-static import:
{noformat}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Test.groovy: 2: unable to resolve class Outer.Inner
 @ line 2, column 1.
   import Outer.Inner
   ^
1 error
{noformat}
Component/s Compiler [ 13529 ]
Paul King made changes -
Summary CLONE - Unable to import static for static nested classes in external groovy files CLONE - import of static nested classes in external groovy files is broken
blackdrag blackdrag made changes -
Parent GROOVY-4683 [ 122027 ]
Issue Type Bug [ 1 ] Sub-task [ 7 ]

People

  • Assignee:
    Unassigned
    Reporter:
    Paul King
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Dates

  • Created:
    Updated: