[GROOVY-11185] each after transpose with 2 arguments does not compile

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.19
• Fix Version/s: 5.0.0-alpha-1
• Labels: CompileStatic
• Assignee: Eric Milles
• Reporter: Mauro Ciancio
• Created: 02/Oct/23 12:56
• Updated: 22/Dec/23 11:38
• Resolved: 06/Oct/23 16:09

Description

Hi there, this code compiled up until groovy 3.0.18, in 3.0.19 stopped compiling:

@groovy.transform.CompileStatic
class Prueba {
    public static void main(String[] args) {
        [
            [1],
            ['a'],
        ].transpose().each { int a, String b ->
            println(a)
            println(b)
        }
    }
}
 

 

$ groovy Prueba.groovy 
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
/home/becho/Prueba.groovy: 9: Incorrect number of parameters. Expected 1 but found 2
 @ line 9, column 22.
           ].transpose().each { int a, String b ->
                        ^1 error
 

 

Is this an expected behavior? Or something got broken along the way?

 

 

 

Issue Links

• is related to: GROOVY-11089 STC: closure param type inference for array and list
• is related to: GROOVY-11092 STC: support coerced closure argument destructuring (for list and tuple)