support _path for symlinkoption and root OD

test/test_symlink.py

@@ -273,6 +273,7 @@ def test_symlink_dependency():
     assert api.option('s1.b').option.has_dependency(False) is True
     assert api.option('c').option.has_dependency(False) is False
 
+
 def test_symlink_makedict():
     boolopt = BoolOption("b", "", default=False)
     linkopt = SymLinkOption("c", boolopt)
@@ -282,3 +283,20 @@ def test_symlink_makedict():
     assert api.value.dict() == {'c': False, 's1.b': False}
     api.option('s1.b').value.set(True)
     assert api.value.dict() == {'c': True, 's1.b': True}
+
+
+def test_symlink_list():
+    boolopt = BoolOption("b", "", default=False)
+    linkopt = SymLinkOption("c", boolopt)
+    descr = OptionDescription("opt", "",
+                              [linkopt, OptionDescription("s1", "", [boolopt])])
+    api = Config(descr)
+    list_opt = []
+    for opt in api.option.list():
+        list_opt.append(opt.option.path())
+    assert list_opt == ['c']
+    #
+    list_opt = []
+    for opt in api.option.list(recursive=True):
+        list_opt.append(opt.option.path())
+    assert list_opt == ['c', 's1.b']

tiramisu/option/baseoption.py

@@ -298,7 +298,8 @@ class Base:
                 _setattr(self, '_extra', tuple([tuple(extra.keys()), tuple(extra.values())]))
 
     def impl_is_readonly(self) -> str:
-        return not isinstance(getattr(self, '_informations', dict()), dict)
+        # _path is None when initialise SymlinkOption
+        return hasattr(self, '_path') and self._path is not None
 
     def impl_getproperties(self) -> FrozenSet[str]:
         return getattr(self, '_properties', frozenset())

tiramisu/option/optiondescription.py

@@ -150,7 +150,6 @@ class CacheOptionDescription(BaseOption):
                                             raise ValueError(_('malformed requirements option "{0}" '
                                                                'must not be a multi for "{1}"').format(
                                                                    require_opt.impl_getname(), option.impl_getname()))
-            if not hasattr(option, '_path'):
             option._path = subpath
             option._set_readonly()
         if init:
@@ -169,6 +168,7 @@ class CacheOptionDescription(BaseOption):
                                                 opt.impl_getname()))
                     self._cache_consistencies[opt] = tuple(cons)
             self._cache_force_store_values = force_store_values
+            self._path = subpath
             self._set_readonly()
 
     def impl_build_force_store_values(self,

tiramisu/option/symlinkoption.py

@@ -38,6 +38,7 @@ class SymLinkOption(BaseOption):
         _setattr(self, '_name', name)
         _setattr(self, '_opt', opt)
         opt._add_dependency(self)
+        self._path = None
 
     def __getattr__(self,
                     name: str) -> Any: