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  1. Groovy
  2. GROOVY-1742

Change compiler error message "Closure expression looks like it may be an isolated open block" to make it more clear

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Trivial
    • Resolution: Fixed
    • Affects Version/s: 1.0
    • Fix Version/s: 1.5.2
    • Component/s: None
    • Labels:
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      Description

      Running

      { println "foo" }

      in the groovyConsole results in the compiler error message "Closure expression looks like it may be an isolated open block.;
      solution: Add an explicit parameter list, as in

      {it -> ...}, or label it as L:{...}.". For me as a groovy newbie it wasn't clear that the first solution marks the code as closure while the second marks it as block, I thought that both would result in a closure. Perhaps the wording should be changed to something like this:

      "Expression could be either a closure expression or an isolated open block. Solution: Add an explicit parameter list, as in {it -> ...}

      , to create a closure or label it as L:

      {...}

      to mark it as block."

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            • Assignee:
              paulk Paul King
              Reporter:
              mkoch Michael Koch
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              • Created:
                Updated:
                Resolved: