Add support for serializing Set

JuliaIO · May 13, 2017 · 570412b · 570412b
1 parent 0690cfb
commit 570412b
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/src/Writer.jl b/src/Writer.jl
@@ -54,6 +54,7 @@ lower(x::IsPrintedAsString) = x
 
 lower(m::Module) = throw(ArgumentError("cannot serialize Module $m as JSON"))
 lower(x::Real) = Float64(x)
+lower(x::Base.AbstractSet) = collect(x)
 
 """
 Abstract supertype of all JSON and JSON-like structural writer contexts.

diff --git a/test/standard-serializer.jl b/test/standard-serializer.jl
@@ -57,3 +57,8 @@ end
     #Multidimensional arrays
     @test json([0 1; 2 0]) == "[[0,2],[1,0]]"
 end
+
+@testset "Sets" begin
+    @test json(Set()) == "[]"
+    @test json(Set([1, 2])) in ["[1,2]", "[2,1]"]
+end