broken-loop.paws

infrastructure execution stage[]
  [infrastructure affix[] [locals]] [infrastructure empty[]];

infrastructure execution stage[]
  [infrastructure set[]
    [infrastructure get[] [locals] [infrastructure length[] [locals]]]

    1] self.portrait;

infrastructure execution stage[]
  [infrastructure set[]
    [infrastructure get[] [locals] [infrastructure length[] [locals]]]

    2] [infrastructure execution branch[] []];

implementation void[]
--- "This doesn't work because the caller of `stage` was given as *this*
     Execution, and thus that partially-applied `stage` remains on the
     stack after we branch ourselves. `stage` then attempts to return
     to us, when really we want it to return to our new branch.";

self.portrait [infrastructure execution branch[] [self.portrait]]