Added key/value to kwoptarg

lib/ruby_ast_gen/node_handling.rb

@@ -9,7 +9,7 @@ module NodeHandling
   CALLS = [:send, :csend]
   DYNAMIC_LITERALS = [:dsym, :dstr]
   CONTROL_KW = [:break, :next]
-  ARGUMENTS = [:arg, :restarg, :kwoptarg, :blockarg, :kwrestarg, :kwarg, :shadowarg, :kwnilarg]
+  ARGUMENTS = [:arg, :restarg, :blockarg, :kwrestarg, :kwarg, :shadowarg, :kwnilarg]
   REFS = [:nth_ref, :back_ref]
   FORWARD_ARGUMENTS = [:forward_args, :forwarded_args, :forward_arg]
   ASSIGNMENTS = [:or_asgn, :and_asgn, :lvasgn, :ivasgn, :gvasgn, :cvasgn, :match_with_lvasgn]
@@ -177,7 +177,10 @@ def self.add_node_properties(node_type, base_map, file_path)
       base_map[:lhs] = children[0]
       base_map[:rhs] = children[1]
     when *SINGLETONS
-      base_map[:value] = node_type 
+      base_map[:value] = node_type
+    when :kwoptarg
+      base_map[:key] = children[0]
+      base_map[:value] = children[1]
     when *LITERALS, *ARGUMENTS, *ACCESS, :match_rest
       base_map[:value] = children[0]
     when :cbase

spec/ruby_ast_gen_spec.rb

@@ -75,6 +75,16 @@ def f(x)
     code(<<-CODE)
 def foo(x)
   x += 1
+end
+    CODE
+    ast = RubyAstGen::parse_file(temp_file.path, temp_name)
+    expect(ast).not_to be_nil
+  end
+
+  it "should create a function with a keyword option argument sucessfully" do
+    code(<<-CODE)
+def foo(a, bar: "default")
+  puts(bar)
 end
     CODE
     ast = RubyAstGen::parse_file(temp_file.path, temp_name)