From a749d66d6ea68922035a67f98e5c189327b5caeb Mon Sep 17 00:00:00 2001
From: Emmanuel Garette <egarette@silique.fr>
Date: Tue, 25 Aug 2026 08:59:20 +0200
Subject: [PATCH] fix: main_namespace is not mandatory (for example for
 risotto)

---
 src/rougail/convert/collect.py               |  8 ++++++++
 src/rougail/structural_directory/__init__.py | 17 ++++++++++-------
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/src/rougail/convert/collect.py b/src/rougail/convert/collect.py
index ed481dacb..ea0feaa59 100644
--- a/src/rougail/convert/collect.py
+++ b/src/rougail/convert/collect.py
@@ -37,6 +37,7 @@ from .object_model import (
 )
 from ..i18n import _
 from ..error import DictConsistencyError
+from ..tiramisu import CONVERT_OPTION
 
 
 class CollectFamily:
@@ -197,7 +198,14 @@ class CollectVariable:
             )
         new_params = []
         namespace = self.objectspace.namespace
+        params_data = list(CONVERT_OPTION.get(self.user_type, {}).get("params", {}))
         for key, val in params.items():
+            if params_data and key not in params_data:
+                raise DictConsistencyError(
+                    _('params "{0}" is not a known parameters with type "{1}" for "{2}" (the list of possible parameters is {3})').format(key, self.user_type, self.path, display_list(params_data, add_quote=True)),
+                    92,
+                    self.sources,
+                )
             try:
                 new_params.append(
                     AnyParam(
diff --git a/src/rougail/structural_directory/__init__.py b/src/rougail/structural_directory/__init__.py
index 043042eaa..686eabc6e 100644
--- a/src/rougail/structural_directory/__init__.py
+++ b/src/rougail/structural_directory/__init__.py
@@ -64,15 +64,18 @@ class Walker:
         main_structures: Optional[List[str]] = None,
         isolated_namespace: bool = True,
     ) -> None:
-        directory_dict = chain(
-            (
+        if not main_namespace:
+            directory_dict = extra_structures.items()
+        else:
+            directory_dict = chain(
                 (
-                    main_namespace,
-                    main_structures,
+                    (
+                        main_namespace,
+                        main_structures,
+                    ),
                 ),
-            ),
-            extra_structures.items(),
-        )
+                extra_structures.items(),
+            )
         for namespace, directories in directory_dict:
             self.convert.create_namespace(namespace, isolated_namespace)
             for filename in self.get_sorted_filenames(directories):