[GROOVY-11014] CompileStatic & Elvis operator: Cannot assign literal value of type (java.lang.Number or java.lang.Comparable) to variable of type double

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.0.5
• Fix Version/s: 5.0.0-alpha-3, 4.0.16
• Component/s: Compiler
• Assignee: Eric Milles
• Reporter: Jason Garrett
• Created: 14/Apr/23 21:46
• Updated: 22/Dec/23 11:38
• Resolved: 02/Nov/23 17:05

Description

import groovy.transform.CompileStatic

@CompileStatic
class ElvisLiteralAssign {
    Double x = null
    double y = x?.doubleValue() ?: 0
} 

This class fails to compile with error:  [Static type checking] - Cannot assign value of type (java.lang.Number or java.lang.Comparable) to variable of type double

This affects at least 4.0.10 and 4.0.11, and does not affect 3.0.16 or 3.0.17.

Issue Links

• is related to: GROOVY-8965 instanceof with || inserts wrong cast