Paul King created GROOVY-10960:
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             Summary: For multi-assignment type checking of Range expressions, 
consider reporting an error for cases which have a known size
                 Key: GROOVY-10960
                 URL: https://issues.apache.org/jira/browse/GROOVY-10960
             Project: Groovy
          Issue Type: Improvement
            Reporter: Paul King
            Assignee: Paul King
             Fix For: 5.0.0-alpha-1


The following code runs fine without {{TypeChecked}} but fails in static 
checking mode.
{code}
@groovy.transform.TypeChecked
def method() {
    def (x, y, z) = 1..3
    assert "$x $y $z" == '1 2 3'
}

method()
{code}
The error is:
{noformat}
[Static type checking] - Multiple assignments without list or tuple on the 
right-hand side are unsupported in static type checking mode
{noformat}

The workaround is to replace the range on the RHS of the multi-assignment with 
a list:
{code}
  def (x, y, z) = [1, 2, 3]
{code}
But since we know the range expression, we can do further checking.



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