Refactor

Author: sue445

_tools/ruby_h_to_go/lib/ruby_h_to_go/generator_helper.rb

@@ -111,43 +111,40 @@ def cast_to_cgo_type(typename)
     # @param pointer_length [Integer]
     # @return [String]
     def ruby_pointer_c_type_to_go_type(typename, pos:, pointer:, pointer_length:)
+      go_type_name =
+        if typename == "int" && %i[return typeref].include?(pos)
+          "Int"
+        else
+          ruby_c_type_to_go_type(typename, pos:, pointer: nil)
+        end
+
       case pointer
       when :sref
         return "*unsafe.Pointer" if typename == "void" && pointer_length == 2
 
-        go_type_name = ruby_c_type_to_go_type(typename, pos:, pointer: nil)
         return "#{"*" * pointer_length}#{go_type_name}"
+
       when :str_array
         return "[]string"
-      end
 
-      case typename
-      when "char", "const char"
-        if pointer == :ref
+      when :array
+        return "[]#{go_type_name}"
+
+      when :ref_array
+        return "[]*#{go_type_name}"
+
+      when :ref
+        if typename == "char"
           case pos
           when :arg, :typeref
             return "string"
           else
             return "char2String"
           end
         end
-      when "void"
-        return "unsafe.Pointer"
       end
 
-      go_type_name =
-        if typename == "int" && %i[return typeref].include?(pos)
-          "Int"
-        else
-          ruby_c_type_to_go_type(typename, pos:, pointer: nil)
-        end
-
-      case pointer
-      when :array
-        return "[]#{go_type_name}"
-      when :ref_array
-        return "[]*#{go_type_name}"
-      end
+      return "unsafe.Pointer" if typename == "void"
 
       "*#{go_type_name}"
     end