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From "Eric Milles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-9058) each parameter type not correctly inferenced
Date Tue, 02 Apr 2019 22:57:00 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-9058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16808215#comment-16808215
] 

Eric Milles commented on GROOVY-9058:
-------------------------------------

However, the addition of {{if (!((VariableExpression) leftExpression).isDynamicTyped()) return
initialType;}} causes this type of situation to stop reporting an error for incompatible assignment:

{code:groovy}
Number foo() {
  Integer.valueOf(1)
}
@CompileStatic
Integer bar() {
  // Cannot assign value of type Number to variable of type Integer:
  Integer result = foo()
  result
}
{code}

> each parameter type not correctly inferenced
> --------------------------------------------
>
>                 Key: GROOVY-9058
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9058
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static compilation
>    Affects Versions: 2.5.6
>            Reporter: Mauro Molinari
>            Priority: Major
>
> Consider this Java class:
> {code:java}
> package test51;
> import java.util.List;
> public class Foo {
>     public List<Object[]> bar() { return null; }
> }{code}
>  and this Groovy class:
> {code:java}
> package test51
> import groovy.transform.CompileStatic
> @CompileStatic
> class Test51 {
>     protected void foo() {
>         List<Object[]> foo = new Foo().bar()
>         foo.each { row ->
>             def o = row[0]
>         }
>     }
>     
>     List bar() {
>     }
> }{code}
> This produces a compiler error because {{row}} is resolved as {{Object}} rather than
{{Object[]}}.
> A workaround is to declare {{row}} as {{Object[] row}} in the closure parameter list.



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