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  1. ROOT
  2. ROOT-8897

cling cannot print non-fully qualified types

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • None
    • 6.14/00
    • None
    • None
    • all

    Description

      Opening an issue upon Axel's request.
      The reproducer:

      root [0] ROOT::Experimental::TDataFrame d(10)
      (ROOT::Experimental::TDataFrame &) A data frame that will create 10 entries
       
      root [1] auto dd = d.Define("a", []{ return 1;})
      input_line_15:2:58: error: template argument for template type parameter must be a type
       cling::printValue(*(ROOT::Experimental::TDF::TInterface<TCustomColumnBase>**)0x7fffccad0e80);
                                                               ^~~~~~~~~~~~~~~~~
      /home/eguiraud/ROOT/root_build/include/ROOT/TDFInterface.hxx:99:23: note: template parameter is declared here
         template <typename T>
                            ^
      ERROR in cling's callPrintValue(): cannot pass value!
      (ROOT::Experimental::TDF::TInterface<TCustomColumnBase> &) ERROR in cling's callPrintValue(): missing value string.
      root [2] 

      Adding `;` at the end of the second line avoids printing and therefore avoids the error.

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              axel Axel Naumann
              eguiraud Enrico Guiraud
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                Updated:
                Resolved: