1 files changed, 42 insertions, 0 deletions
diff --git a/tiger-compiler/src/astclone/libastclone.hh b/tiger-compiler/src/astclone/libastclone.hh
new file mode 100644
index 0000000..d62fea9
--- /dev/null
+++ b/tiger-compiler/src/astclone/libastclone.hh
@@ -0,0 +1,42 @@
+/**
+ ** \file astclone/libastclone.hh
+ ** \brief Declare functions and variables exported by the Astclone module.
+ */
+
+#pragma once
+
+#include <memory>
+
+#include <ast/fwd.hh>
+
+/// Cloning an ast::Ast.
+namespace astclone
+{
+  /** \brief Make a deep copy of an AST.
+   ** \param tree abstract syntax tree's root.
+   ** \return the cloned AST.  */
+  template <typename T> T* clone(const T& tree);
+
+  template <typename A> using applicable = auto(const A&) -> A*;
+
+  template <typename A>
+  using applicable_with_bools = auto(const A&, bool, bool) -> A*;
+
+  template <typename A, typename B>
+  using applicable_object = auto(const A&, const B&) -> A*;
+
+  /// Have the pure function \a f side effect on \a t.
+  template <typename A> void apply(applicable<A> f, std::unique_ptr<A>& t1);
+
+  template <typename A>
+  void apply(applicable_with_bools<A> f,
+             std::unique_ptr<A>& t1,
+             bool cond_1,
+             bool cond_2);
+
+  template <typename A, typename B>
+  void apply(applicable_object<A, B> f, std::unique_ptr<A>& t1, const B& t3);
+
+} // namespace astclone
+
+#include <astclone/libastclone.hxx>