Add getViewPolicy() to LiteParsedDocumentSource

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
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      Allow each LiteParsedDocumentSource to declare whether it:

      • Does nothing for views,
      • Has a custom callback, or
      • Disallows views

      This should like something like:

      class LiteParsedDocumentSource {

    struct DefaultViewPolicy;  // No special handling required.
    using DisallowViewType = StringData;  // Views not supported.
    using ViewPolicyFn = std::function<void(const ViewInfo&)>; // Custom handling

   /**
     * Indicates how this stage will interact with a view. LiteParsedDocumentSources that
     * wish to perform custom behavior for views should override this function to return
     * a std::function.
    */
    virtual std::variant<DefaultViewPolicy,
                         ViewPolicyFn,
                         DisallowViewType> getViewPolicy() const {
        return DefaultViewPolicy;
    }
}

            Assignee:
            Unassigned
            Reporter:
            Lynne Wang
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              Created:
              Updated: