refactor(node): hide stringable

2 files changed, 18 insertions, 16 deletions

diff --git a/src/node.cc b/src/node.cc
index 0079dcb..9b76c27 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -22,12 +22,6 @@
 
 namespace cait::node {
 
-stringable::stringable() = default;
-
-stringable::stringable(const stringable &) = default;
-
-stringable::~stringable() = default;
-
 variable::variable(const token &variable_name,
                    std::vector<token> variable_value_list)
     : _name(variable_name), _value_list(std::move(variable_value_list)) {}
diff --git a/src/node.hh b/src/node.hh
index 0778962..cc2362c 100644
--- a/src/node.hh
+++ b/src/node.hh
@@ -28,7 +28,21 @@
 
 #include "token.hh"
 
-namespace cait::node {
+namespace cait {
+
+namespace {
+
+class stringable {
+public:
+  [[maybe_unused]] stringable() = default;
+  stringable(const stringable &) = default;
+  virtual ~stringable() = default;
+  [[nodiscard]] virtual auto string() const -> std::string = 0;
+};
+
+} // namespace
+
+namespace node {
 
 class variable;
 class rule;
@@ -42,14 +56,6 @@ using item_map_type = std::map<std::string, std::vector<token>>;
 using node_set =
     std::variant<rule, build, default_, variable, pool, include, subninja>;
 
-class stringable {
-public:
-  stringable();
-  stringable(const stringable &);
-  virtual ~stringable();
-  [[nodiscard]] virtual auto string() const -> std::string = 0;
-};
-
 class variable : stringable {
 private:
   const token &_name;
@@ -134,6 +140,8 @@ public:
   [[maybe_unused]] [[nodiscard]] auto path() const noexcept -> const token &;
 };
 
-} // namespace cait::node
+} // namespace node
+
+} // namespace cait
 
 #endif // NODE_HH