[GROOVY-5450] Final field assignment check on static compilation

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0-beta-3
• Fix Version/s: 4.0.0-beta-2, 3.0.18
• Component/s: Compiler
• Assignee: Eric Milles
• Reporter: Renato Garcia
• Created: 14/May/12 16:45
• Updated: 11/Apr/23 00:05
• Resolved: 11/Oct/21 00:50

Description

The following class definition should generate a compilation error on final field assignment.

@groovy.transform.CompileStatic
class StaticGroovy3 {
    def testFinalField() {
        def ff = new FinalField()
        ff.aField = 'y'
        println ff
    }
}

class FinalField {
    final aField = 'x'
}

new StaticGroovy3().testFinalField()

Fails at runtime with groovy.lang.ReadOnlyPropertyException: Cannot set readonly property: aField for class: FinalField

Issue Links

• relates to: GROOVY-11005 CompileStatic: Cannot set default-visible property in superclass that has a getter without a setter