Shader: Add import statement (not doing anything for now)

src/Nazara/Shader/Ast/AstCloner.cpp

@@ -215,6 +215,14 @@ namespace Nz::ShaderAst
 		return clone;
 	}
 
+	StatementPtr AstCloner::Clone(ImportStatement& node)
+	{
+		auto clone = std::make_unique<ImportStatement>();
+		clone->modulePath = node.modulePath;
+
+		return clone;
+	}
+
 	StatementPtr AstCloner::Clone(MultiStatement& node)
 	{
 		auto clone = std::make_unique<MultiStatement>();

src/Nazara/Shader/Ast/AstRecursiveVisitor.cpp

@@ -185,6 +185,11 @@ namespace Nz::ShaderAst
 			node.statement->Visit(*this);
 	}
 
+	void AstRecursiveVisitor::Visit(ImportStatement& /*node*/)
+	{
+		/* nothing to do */
+	}
+
 	void AstRecursiveVisitor::Visit(MultiStatement& node)
 	{
 		for (auto& statement : node.statements)

src/Nazara/Shader/Ast/AstSerializer.cpp

@@ -301,6 +301,13 @@ namespace Nz::ShaderAst
 		Node(node.statement);
 	}
 
+	void AstSerializerBase::Serialize(ImportStatement& node)
+	{
+		Container(node.modulePath);
+		for (auto& path : node.modulePath)
+			Value(path);
+	}
+
 	void AstSerializerBase::Serialize(MultiStatement& node)
 	{
 		Container(node.statements);

src/Nazara/Shader/Ast/SanitizeVisitor.cpp

@@ -1308,6 +1308,11 @@ namespace Nz::ShaderAst
 		}
 	}
 
+	StatementPtr SanitizeVisitor::Clone(ImportStatement& node)
+	{
+			return static_unique_pointer_cast<ImportStatement>(AstCloner::Clone(node));
+	}
+
 	StatementPtr SanitizeVisitor::Clone(MultiStatement& node)
 	{
 		auto clone = std::make_unique<MultiStatement>();