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diff --git a/tiger-compiler/src/ast/seq-exp.hh b/tiger-compiler/src/ast/seq-exp.hh
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+++ b/tiger-compiler/src/ast/seq-exp.hh
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+/**
+ ** \file ast/seq-exp.hh
+ ** \brief Declaration of ast::SeqExp.
+ */
+
+#pragma once
+
+#include <ast/exp.hh>
+
+namespace ast
+{
+  /// SeqExp.
+  class SeqExp : public Exp
+  {
+  public:
+    /** \name Ctor & dtor.
+     ** \{ */
+    /// Construct a SeqExp node.
+    SeqExp(const Location& location, exps_type* exps);
+    SeqExp(const SeqExp&) = delete;
+    SeqExp& operator=(const SeqExp&) = delete;
+    /// Destroy a SeqExp node.
+    ~SeqExp() override;
+    /** \} */
+
+    /// \name Visitors entry point.
+    /// \{ */
+    /// Accept a const visitor \a v.
+    void accept(ConstVisitor& v) const override;
+    /// Accept a non-const visitor \a v.
+    void accept(Visitor& v) override;
+    /// \}
+
+    /** \name Accessors.
+     ** \{ */
+    /// Return list of expressions.
+    const exps_type& exps_get() const;
+    /// Return list of expressions.
+    exps_type& exps_get();
+    /** \} */
+
+  protected:
+    /// List of expressions.
+    exps_type* exps_;
+  };
+} // namespace ast
+#include <ast/seq-exp.hxx>