Add const sections

1 files changed, 41 insertions, 0 deletions

diff --git a/boot/ast.cc b/boot/ast.cc
index edc10a7..15e4928 100644
--- a/boot/ast.cc
+++ b/boot/ast.cc
@@ -72,6 +72,11 @@ namespace elna::boot
         __builtin_unreachable();
     }
 
+    void empty_visitor::visit(constant_declaration *)
+    {
+        __builtin_unreachable();
+    }
+
     void empty_visitor::visit(procedure_declaration *)
     {
         __builtin_unreachable();
@@ -357,6 +362,11 @@ namespace elna::boot
         }
     }
 
+    void walking_visitor::visit(constant_declaration *declaration)
+    {
+        declaration->initializer->accept(this);
+    }
+
     void walking_visitor::visit(array_type_expression *expression)
     {
         expression->base().accept(this);
@@ -1007,6 +1017,31 @@ namespace elna::boot
         return *m_underlying_type;
     }
 
+    constant_declaration::constant_declaration(const source_position position,
+            identifier_definition identifier, expression *const initializer)
+        : node(position), identifier(std::move(identifier)), initializer(initializer)
+    {
+    }
+
+    constant_declaration::~constant_declaration()
+    {
+        delete this->initializer;
+    }
+
+    void constant_declaration::accept(parser_visitor *visitor)
+    {
+        visitor->visit(this);
+    }
+
+    block::block(std::vector<constant_declaration *>&& constants,
+            std::vector<variable_declaration *>&& variables,
+            std::vector<statement *>&& statements)
+        : constants(std::move(constants)),
+        variables(std::move(variables)),
+        statements(std::move(statements))
+    {
+    }
+
     block::block(std::vector<variable_declaration *>&& variables, std::vector<statement *>&& statements)
         : variables(std::move(variables)), statements(std::move(statements))
     {
@@ -1014,6 +1049,7 @@ namespace elna::boot
 
     block& block::operator=(block&& that) noexcept
     {
+        std::swap(this->constants, that.constants);
         std::swap(this->variables, that.variables);
         std::swap(this->statements, that.statements);
         std::swap(this->symbols, that.symbols);
@@ -1031,6 +1067,10 @@ namespace elna::boot
         {
             delete variable;
         }
+        for (const constant_declaration *constant : this->constants)
+        {
+            delete constant;
+        }
     }
 
     procedure_body::procedure_body(block&& body, expression *return_expression)
@@ -1059,6 +1099,7 @@ namespace elna::boot
 
     void traverse_block(parser_visitor *visitor, const block& body)
     {
+        visit_all(visitor, body.constants);
         visit_all(visitor, body.variables);
         visit_all(visitor, body.statements);
     }