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  1. Groovy
  2. GROOVY-6240

static type checker cannot infer type of for loop variable from map

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      The following code fails type checking as the inferred type of the entry loop variable is Object.

      @groovy.transform.CompileStatic
      class Looper {
          static void main(String... args) {
              Map<String, Integer> map = [foo: 123, bar: 456]
              for (entry in map) {
                  println entry.key.reverse()
                  println entry.value * 2
              }
          }
      }
      

      If I change it to for (entry in map.entrySet()) it works fine.

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              melix C├ędric Champeau
              robfletcher Rob Fletcher
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