[GROOVY-7984] @SelfType does not allow trait to be added dynamically

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7
• Fix Version/s: 5.0.0-alpha-6
• Component/s: Compiler
• Labels: trait traits
• Environment: windows 7, java 8, groovy script

Language

groovy

• Assignee: Eric Milles
• Reporter: Denis Jouvin
• Created: 30/Oct/16 11:32
• Updated: 05/Mar/24 01:53
• Resolved: 30/Jan/24 23:33

Description

When trying to add dynamically a trait T with a SelfType type restriction on class C, to an instance of that class C, the script throws :

org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'C@92dae4' with class 'C' to class 'T'