From 265e6d6a27eebbcafbd73f0da76e516a139f21d1 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Sat, 4 Jul 2026 22:29:49 +0200
Subject: Allow empty statements

---
 include/elna/boot/ast.h         | 10 ++++++++++
 include/elna/boot/semantic.h    |  4 +++-
 include/elna/gcc/elna-generic.h |  1 +
 3 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/elna/boot/ast.h b/include/elna/boot/ast.h
index 7d94e84..03d3e27 100644
--- a/include/elna/boot/ast.h
+++ b/include/elna/boot/ast.h
@@ -87,6 +87,7 @@ namespace elna::boot
     template<typename T>
     class literal;
     class defer_statement;
+    class empty_statement;
 
     /**
      * Interface for AST visitors.
@@ -107,6 +108,7 @@ namespace elna::boot
         virtual void visit(return_statement *) = 0;
         virtual void visit(defer_statement *) = 0;
         virtual void visit(case_statement *) = 0;
+        virtual void visit(empty_statement *) = 0;
         virtual void visit(unit *) = 0;
         virtual void visit(program *) = 0;
         virtual void visit(binary_expression *) = 0;
@@ -158,6 +160,7 @@ namespace elna::boot
         [[noreturn]] virtual void visit(while_statement *) override;
         [[noreturn]] virtual void visit(return_statement *) override;
         [[noreturn]] virtual void visit(defer_statement *) override;
+        [[noreturn]] virtual void visit(empty_statement *) override;
         [[noreturn]] virtual void visit(case_statement *) override;
         [[noreturn]] virtual void visit(procedure_call *) override;
         [[noreturn]] virtual void visit(unit *) override;
@@ -758,6 +761,13 @@ namespace elna::boot
         virtual ~defer_statement() override;
     };
 
+    class empty_statement : public statement
+    {
+    public:
+        empty_statement(const struct position);
+        void accept(parser_visitor *visitor) override;
+    };
+
     class binary_expression : public expression
     {
         expression *m_lhs;
diff --git a/include/elna/boot/semantic.h b/include/elna/boot/semantic.h
index 66eb0a7..7094ee9 100644
--- a/include/elna/boot/semantic.h
+++ b/include/elna/boot/semantic.h
@@ -109,6 +109,7 @@ namespace elna::boot
         void visit(while_statement *) override;
         void visit(return_statement *) override;
         void visit(defer_statement *) override;
+        void visit(empty_statement *) override;
         void visit(case_statement *) override;
         void visit(procedure_call *) override;
         void visit(unit *unit) override;
@@ -151,7 +152,8 @@ namespace elna::boot
         void visit(import_declaration *) override;
         void visit(while_statement *statement) override;
         void visit(return_statement *statement) override;
-        void visit(defer_statement *statement) override;
+        void visit(defer_statement *) override;
+        void visit(empty_statement *statement) override;
         void visit(case_statement *statement) override;
         void visit(procedure_call *call) override;
         void visit(unit *unit) override;
diff --git a/include/elna/gcc/elna-generic.h b/include/elna/gcc/elna-generic.h
index 7490e92..9e148e6 100644
--- a/include/elna/gcc/elna-generic.h
+++ b/include/elna/gcc/elna-generic.h
@@ -92,6 +92,7 @@ namespace elna::gcc
         void visit(boot::while_statement *statement) override;
         void visit(boot::return_statement *statement) override;
         void visit(boot::defer_statement *statement) override;
+        void visit(boot::empty_statement *) override;
         void visit(boot::case_statement *statement) override;
     };
 }
-- 
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