Enforce constraints for LiteParsed desugar stages

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
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      Desugar extension stages need to be validated after the LiteParsedPipeline is created to ensure that they abide by the following constraints:
      1. Cycle prevention: A stage must not transitively expand back into itself.
      We will check per path by storing a stack of desugar stage names.

      2. Bounded desugar depth (kMaxDesugarDepth = 10) per expansion path

      We should create a structure similar to the ViewGraph that tracks a list of all seen desugar stage names, as well as increment a depth counter every time we go further down a nested desugaring path.

            Assignee:
            Lynne Wang
            Reporter:
            Lynne Wang
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              Created:
              Updated: