Change rb_define_variable's 2nd arg to in_ref

Author: sue445

_tools/ruby_h_to_go/lib/ruby_header_parser/data.rb

@@ -14,7 +14,7 @@ def initialize
 
     # @param function_name [String]
     # @param pos [Integer] arg position (1 origin)
-    # @return [Symbol] :ref, :array, :ref_array, :function, :sref, :str_array
+    # @return [Symbol] :ref, :array, :ref_array, :function, :sref, :str_array, :in_ref
     def function_arg_pointer_hint(function_name:, pos:)
       pointer_hint = data["function"]["pointer_hint"].dig(function_name, pos)
       return pointer_hint.to_sym if pointer_hint

_tools/ruby_h_to_go/lib/ruby_header_parser/data.yml

@@ -86,6 +86,8 @@ function:
       3: function
     rb_define_singleton_method:
       3: function
+    rb_define_variable:
+      2: in_ref
     rb_ensure:
       1: function
       3: function

_tools/ruby_h_to_go/spec/ruby_header_parser/parser_spec.rb

@@ -185,6 +185,22 @@
       its(:typeref)    { should eq typedef(type: "int") }
       its(:args)       { should eq args }
     end
+
+    context "rb_define_variable" do
+      subject { definitions.find { |d| d.name == "rb_define_variable" } }
+
+      let(:args) do
+        [
+          argument(type: "char", name: "name", pointer: :ref),
+          argument(type: "VALUE", name: "var", pointer: :in_ref),
+        ]
+      end
+
+      its(:name)       { should eq "rb_define_variable" }
+      its(:definition) { should eq "void rb_define_variable(const char *name, VALUE *var)" }
+      its(:typeref)    { should eq typedef(type: "void") }
+      its(:args)       { should eq args }
+    end
   end
 
   describe "#extract_static_inline_function_definitions" do