Impl go_function_name

Author: sue445

_tools/ruby_h_to_go/lib/ruby_h_to_go/function_definition.rb

@@ -38,7 +38,6 @@ def write_go_file(dist_dir)
 
     # @return [String]
     def generate_go_content
-      go_function_name = snake_to_camel(name)
       go_function_args = args.map(&:go_function_arg)
 
       go_function_typeref = typeref.go_function_typeref
@@ -119,5 +118,12 @@ def generate_go_content
 
       go_function_lines.join("\n")
     end
+
+    # @return [String]
+    def go_function_name
+      return name if name.match?(/^[A-Z0-9_]+$/)
+
+      snake_to_camel(name)
+    end
   end
 end

_tools/ruby_h_to_go/spec/ruby_h_to_go/function_definition_spec.rb

@@ -199,4 +199,28 @@
       it { should eq go_content }
     end
   end
+
+  describe "#go_function_name" do
+    subject { RubyHToGo::FunctionDefinition.new(definition:).go_function_name }
+
+    let(:definition) do
+      RubyHeaderParser::FunctionDefinition.new(
+        name:       name,
+        definition: "",
+        typeref:    typedef(type: "void"),
+        args:       [],
+      )
+    end
+
+    using RSpec::Parameterized::TableSyntax
+
+    where(:name, :expected) do
+      "RB_FIX2INT" | "RB_FIX2INT"
+      "rb_fix2int" | "RbFix2Int"
+    end
+
+    with_them do
+      it { should eq expected }
+    end
+  end
 end