Add eltype for RemoteChannel (JuliaLang/julia#35100)

Author: jonas-schulze

src/remotecall.jl

@@ -1,5 +1,7 @@
 # This file is a part of Julia. License is MIT: https://julialang.org/license
 
+import Base: eltype
+
 abstract type AbstractRemoteRef end
 
 """
@@ -119,6 +121,8 @@ function RemoteChannel(f::Function, pid::Integer=myid())
     end
 end
 
+Base.eltype(::Type{RemoteChannel{T}}) where {T} = eltype(T)
+
 hash(r::AbstractRemoteRef, h::UInt) = hash(r.whence, hash(r.id, h))
 ==(r::AbstractRemoteRef, s::AbstractRemoteRef) = (r.whence==s.whence && r.id==s.id)
 

test/distributed_exec.jl

@@ -834,6 +834,7 @@ remote_do(fut->put!(fut, myid()), id_other, f)
 
 # Github issue #29932
 rc_unbuffered = RemoteChannel(()->Channel{Vector{Float64}}(0))
+@test eltype(rc_unbuffered) == Vector{Float64}
 
 @async begin
     # Trigger direct write (no buffering) of largish array