Support for `TNamed`

[pkalaczynski]

Hi,

it seems that reading TNamed is not supported (yet? :) )

julia> f = ROOTFile("MuonSimulation_Sclaed1_margin2cm_damagedobject_50M_CRY_50cm.root")
ROOTFile with 5 entries and 18 streamers.
MuonSimulation_Sclaed1_margin2cm_damagedobject_50M_CRY_50cm.root
├─ Muondata (TTree)
│  ├─ "posX"
│  ├─ "posY"
│  ├─ "posZ"
│  ├─ "⋮"
│  ├─ "momZ"
│  ├─ "energy"
│  └─ "edeps"
├─ runSeed (TNamed)
├─ exposure Time_minutes (TNamed)
└─ No total Events (TNamed)


julia> f["Muondata"]
Muondata (TTree)
├─ "posX"
├─ "posY"
├─ "posZ"
├─ "⋮"
├─ "momZ"
├─ "energy"
└─ "edeps"


julia> f["runSeed"]
ERROR: MethodError: no constructors have been defined for UnROOT.TNamed
The type `UnROOT.TNamed` exists, but no method is defined for this combination of argument types when trying to construct it.
Stacktrace:
 [1] _getindex(f::ROOTFile, s::String)
   @ UnROOT ~/.julia/packages/UnROOT/fBuCw/src/root.jl:178
 [2] #153
   @ ~/.julia/packages/UnROOT/fBuCw/src/root.jl:163 [inlined]
 [3] get!(default::UnROOT.var"#153#154"{ROOTFile, String}, h::Dict{Any, Any}, key::String)
   @ Base ./dict.jl:458
 [4] getindex(f::ROOTFile, s::String)
   @ UnROOT ~/.julia/packages/UnROOT/fBuCw/src/root.jl:162
 [5] top-level scope
   @ REPL[6]:1

[tamasgal]

Can you upload a sample file? 😉

[pkalaczynski]

Sorry for indirect sharing, but only have this large one atm: https://we.tl/t-aBadIVUPyx

[tamasgal]

I think we can live with this "hack"

julia> f["runSeed"]
"1763480842"

julia> f["exposure Time_minutes"]
"4901.960784"

TNamed is anyways just a struct of fName::String and fTitle::String and fName is anyways in the directory structure so the user knows it, which means that returning fTitle is natural.

What do you think?

See #398

[pkalaczynski]

Fine with me ;) Could this be included in the next minor tag? 😁

[tamasgal]

On the way ;)

[pkalaczynski]

TNamed is probably also not the greatest choice for this if the fTitle is always a String, but that's not UnROOT's problem ofc ...

[tamasgal]

In a few minutes available in v0.11.1 db085d2