From 0180410e229909ed6c095d9701f8d59ba5136d06 Mon Sep 17 00:00:00 2001
From: Jerry Ling <proton@jling.dev>
Date: Fri, 25 Feb 2022 16:10:53 -0500
Subject: [PATCH] fix stacktrace too long (#149)

* fix stacktrace too long

* fix stacktrace too long try 2

* fix stacktrace too long try 3

* fix before 1.6
---
 src/UnROOT.jl   | 1 +
 src/displays.jl | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/src/UnROOT.jl b/src/UnROOT.jl
index 17c966b8..aea5830f 100644
--- a/src/UnROOT.jl
+++ b/src/UnROOT.jl
@@ -17,6 +17,7 @@ import LibDeflate: zlib_decompress!, Decompressor
 import Tables, TypedTables, PrettyTables
 
 @static if VERSION < v"1.6"
+    Base.first(itr, n::Integer) = collect(Iterators.take(itr, n))
     Base.first(a::AbstractVector{S}, n::Integer) where S<: AbstractString = a[1:(length(a) > n ? n : end)]
     Base.first(a::S, n::Integer) where S<: AbstractString = a[1:(length(a) > n ? n : end)]
 end
diff --git a/src/displays.jl b/src/displays.jl
index 6c82e270..6335a85b 100644
--- a/src/displays.jl
+++ b/src/displays.jl
@@ -77,6 +77,15 @@ function _show(io::IO, tree::LazyTree; kwargs...)
     )
     nothing
 end
+
+# stop crazy stracktrace
+function Base.show(io::IO, 
+    ::Type{<:LazyTree{<:UnROOT.TypedTables.Table{NamedTuple{Ns, Vs}}}}) where {T, Ns, Vs}
+    elip = length(Ns) > 5 ? "..." : ""
+    println(io, "LazyTree with $(length(Ns)) branches:")
+    println(io, join(first(Ns, 5), ", "), elip)
+end
+
 function Base.show(io::IO, ::MIME"text/html", tree::LazyTree)
     _hs = _make_header(tree)
     maxrows = 10