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  1. Groovy
  2. GROOVY-9386

Field initialized in a trait using tap doesn't work correctly

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 2.5.9, 3.0.0-rc-3
    • 4.0.0-alpha-1, 3.0.6, 2.5.16
    • None
    • None

    Description

      The following code

      class Foo {
          int bar
      }
      
      trait TestTrait {
          def foo = new Foo().tap{
              bar = 1
          }
      }
      
      class SomeClass implements TestTrait {
      
      }
      
      new SomeClass()
      

      fails with the following error:

      Caught: groovy.lang.MissingPropertyException: No such property: bar for class: SomeClass
      Possible solutions: foo
      groovy.lang.MissingPropertyException: No such property: bar for class: SomeClass
      Possible solutions: foo
      	at TestTrait$Trait$Helper$__init__closure1.doCall(scratch.groovy:8)
      	at TestTrait$Trait$Helper.$init$(scratch.groovy:7)
      	at SomeClass.<init>(scratch.groovy)
      	at scratch.run(scratch.groovy:16)
      

      if using the following code in the tap makes it work correctly:

      
      trait TestTrait {
          def foo = new Foo().tap{
              it.bar = 1
          }
      }
      

      Also when used in a class directly, it works also correctly:

      
      class SomeClass {
          def foo = new Foo().tap{
              bar = 1
          }
      }
      

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            emilles Eric Milles
            kiefermat Matthias Kiefer
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              Updated:
              Resolved:

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