From ddcf6fd179b7cbbbcf807f2825938417dd7b1094 Mon Sep 17 00:00:00 2001
From: Colin Caine <cmcaine@gmail.com>
Date: Sun, 7 Feb 2021 17:38:08 +0000
Subject: [PATCH] Add `Base.isdone(itr::EachLine)`

With this method, `isempty` won't consume values from the iterator (See #27412).
---
 base/io.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/base/io.jl b/base/io.jl
index eb9eff598f712..56137519858b0 100644
--- a/base/io.jl
+++ b/base/io.jl
@@ -1023,6 +1023,8 @@ eltype(::Type{<:EachLine}) = String
 
 IteratorSize(::Type{<:EachLine}) = SizeUnknown()
 
+isdone(itr::Eachline) = eof(itr.stream)
+
 struct ReadEachIterator{T, IOT <: IO}
     stream::IOT
 end