recipe postprocessing for aliases and magic args

src/args.jl

@@ -688,7 +688,7 @@ function preprocessArgs!(d::KW)
         a = d[:arrow]
         d[:arrow] = if a == true
             arrow()
-        elseif a == false
+        elseif a in (false, nothing, :none)
             nothing
         elseif !(typeof(a) <: Arrow)
             arrow(wraptuple(a)...)
@@ -698,9 +698,9 @@ function preprocessArgs!(d::KW)
     end
 
 
-    if get(d, :arrow, false) == true
+    # if get(d, :arrow, false) == true
-        d[:arrow] = arrow()
+    #     d[:arrow] = arrow()
-    end
+    # end
 
     # legends
     if haskey(d, :legend)

src/pipeline.jl

@@ -95,6 +95,7 @@ function _process_userrecipe(plt::Plot, kw_list::Vector{KW}, recipedata::RecipeD
     # when the arg tuple is empty, that means there's nothing left to recursively
     # process... finish up and add to the kw_list
     kw = recipedata.d
+    preprocessArgs!(kw)
     _preprocess_userrecipe(kw)
     warnOnUnsupported_scales(plt.backend, kw)
 
@@ -183,6 +184,7 @@ function _process_plotrecipe(plt::Plot, kw::KW, kw_list::Vector{KW}, still_to_pr
         st = kw[:seriestype] = get(_typeAliases, st, st)
         datalist = RecipesBase.apply_recipe(kw, Val{st}, plt)
         for data in datalist
+            preprocessArgs!(data.d)
             if data.d[:seriestype] == st
                 error("Plot recipe $st returned the same seriestype: $(data.d)")
             end
@@ -389,6 +391,10 @@ function _process_seriesrecipe(plt::Plot, d::KW)
         # assuming there was no error, recursively apply the series recipes
         for data in datalist
             if isa(data, RecipeData)
+                preprocessArgs!(data.d)
+                if data.d[:seriestype] == st
+                    error("The seriestype didn't change in series recipe $st.  This will cause a StackOverflow.")
+                end
                 _process_seriesrecipe(plt, data.d)
             else
                 warn("Unhandled recipe: $(data)")

test/runtests.jl

@@ -85,6 +85,44 @@ facts("Axes") do
 end
 
 
+# tests for preprocessing recipes
+
+# facts("recipes") do
+
+    # user recipe
+
+    # type T end
+    # @recipe function f(::T)
+    #     line := (3,0.3,:red)
+    #     marker := (20,0.5,:blue,:o)
+    #     bg := :yellow
+    #     rand(10)
+    # end
+    # plot(T())
+
+    # plot recipe
+
+    # @recipe function f(::Type{Val{:hiplt}},plt::Plot)
+    #     line := (3,0.3,:red)
+    #     marker := (20,0.5,:blue,:o)
+    #     t := :path
+    #     bg:=:green
+    #     ()
+    # end
+    # plot(rand(10),t=:hiplt)
+
+    # series recipe
+
+    # @recipe function f(::Type{Val{:hi}},x,y,z)
+    #     line := (3,0.3,:red)
+    #     marker := (20,0.5,:blue,:o)
+    #     t := :path
+    #     ()
+    # end
+    # plot(rand(10),t=:hiplt)
+
+# end
+
 
 
 FactCheck.exitstatus()