[GROOVY-8703] Unexpected behavior with @NamedVariant on constructor

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.1
• Fix Version/s: 3.0.0-alpha-4, 2.5.3
• Labels: breaking
• Assignee: Paul King
• Reporter: Eric Milles
• Created: 16/Jul/18 15:53
• Updated: 13/Dec/18 10:05
• Resolved: 13/Sep/18 06:48

Description

Tried this example and got cast exception converting Map to Integer. Should the print statement at the end use the generated map constructor as expected? (Note: I am compiling with indy variant; tried to use web console to try vanilla MOP...)

import groovy.transform.*
import groovy.transform.options.*

@ToString(includeNames=true)
class Color {
  final Integer r, g, b

  @NamedVariant @VisibilityOptions(Visibility.PUBLIC)
  private Color(Integer r, Integer g, Integer b) {
    this.r = r
    this.g = g
    this.b = b
  }

  public static final Color BLACK = new Color(0, 0, 0)
}

print(new Color(g:12, b:42, r:12)) // gives org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object '{}' with class 'java.util.LinkedHashMap' to class 'java.lang.Integer'

Issue Links

• links to: GitHub Pull Request #795