non_diff typejoin and Base.depwarn (#398)

* non_diff typejoin

* bump patch

* add test

* fix tests

* typos

* non_diff depwarn

* tests for non_diff depwarn

* fix tests

Author: DhairyaLGandhi

Project.toml

@@ -1,6 +1,6 @@
 name = "ChainRules"
 uuid = "082447d4-558c-5d27-93f4-14fc19e9eca2"
-version = "0.7.59"
+version = "0.7.60"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"

src/rulesets/Base/nondiff.jl

@@ -400,11 +400,13 @@ VERSION >= v"1.1" && @non_differentiable splitpath(::AbstractString)
 @non_differentiable write(::IO, ::Any...)
 
 @non_differentiable xor(::Any...)
+@non_differentiable typejoin(::Any...)
 
 # Non-public Base
 @non_differentiable Base.gc_num()
 @non_differentiable Base.time_ns()
 @non_differentiable Base.typename(::Any)
+@non_differentiable Base.depwarn(::Any...)
 
 @non_differentiable Broadcast.combine_styles(::Any...)
 @non_differentiable Broadcast.result_style(::Any)

test/rulesets/Base/base.jl

@@ -163,4 +163,14 @@
             test_scalar(ceil, x; fdm=forward_fdm(5, 1))
         end
     end
+
+    @testset "type" begin
+        @test frule((NO_FIELDS, DoesNotExist(), DoesNotExist()), typejoin, Array{Float32,4}, Array{Float32,3}) !== nothing
+        @test rrule(typejoin, Array{Float32,4}, Array{Float32,3}) !== nothing
+    end
+
+    @testset "Logging" begin
+        @test frule((NO_FIELDS, DoesNotExist(), DoesNotExist()), Base.depwarn, "message", :f) !== nothing
+        @test rrule(Base.depwarn, "message", :f) !== nothing
+    end
 end