[GROOVY-9344] CCE in closure shared variable assignment

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.8
• Fix Version/s: 4.0.0-alpha-1, 3.0.5, 2.5.16
• Component/s: Static compilation, Static Type Checker
• Assignee: Eric Milles
• Reporter: Daniil Ovchinnikov
• Created: 19/Dec/19 13:56
• Updated: 23/Feb/22 20:40
• Resolved: 21/Jun/20 23:35

Description

class A {}
class B {}

@groovy.transform.CompileStatic
def cs() {
    def var
    var = new A()
    def c = {
        var = new B() // Cannot cast object 'B@4e234c52' with class 'B' to class 'A'
    }
    c()
    var.toString()
}

assert cs() != null