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diff --git a/tiger-compiler/src/bind/renamer.hh b/tiger-compiler/src/bind/renamer.hh
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+++ b/tiger-compiler/src/bind/renamer.hh
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+/**
+ ** \file bind/renamer.hh
+ ** \brief Implementation of bind::Renamer.
+ */
+
+#pragma once
+
+#include <map>
+#include <ast/default-visitor.hh>
+#include <ast/non-assert-visitor.hh>
+#include <ast/non-object-visitor.hh>
+
+namespace bind
+{
+  /// Perform identifier renaming within an AST (in place),
+  /// without support for objects.
+  class Renamer
+    : public ast::DefaultVisitor
+    , public ast::NonObjectVisitor
+    , public ast::NonAssertVisitor
+  {
+  public:
+    using super_type = ast::DefaultVisitor;
+
+    // Import overloaded virtual functions.
+    using super_type::operator();
+
+    // FIXME DONE: Some code was deleted here.
+
+    // Visit methods.
+    /// \brief Process a declaration body or a usage site.
+    ///
+    /// \a def is the definition site of \e (must be equal to
+    /// \a e if it is a Dec node).
+    template <class E, class Def> void visit(E& e, const Def* def);
+
+    /// \name Visiting definition sites.
+    /// \{
+    // FIXME DONE: Some code was deleted here.
+    void operator()(ast::VarDec& e) override;
+    void operator()(ast::TypeDec& e) override;
+    void operator()(ast::FunctionDec& e) override;
+    /// \}
+
+    /// \name Visiting usage sites.
+    /// \{
+    // FIXME DONE: Some code was deleted here.
+    void operator()(ast::SimpleVar& e) override;
+    void operator()(ast::NameTy& e) override;
+    void operator()(ast::CallExp& e) override;
+    /// \}
+
+  private:
+    // FIXME DONE: Some code was deleted here.
+    std::map<const ast::Dec*, misc::symbol> renames_;
+
+    void new_name_(const ast::Dec*);
+  };
+
+} // namespace bind
+
+#include <bind/renamer.hxx>