Make registry use explicit when creating _DomainsContainer

sphinx/domains/_domains_container.py

@@ -22,6 +22,7 @@ if TYPE_CHECKING:
     from sphinx.environment import BuildEnvironment
     from sphinx.ext.duration import DurationDomain
     from sphinx.ext.todo import TodoDomain
+    from sphinx.registry import SphinxComponentRegistry
 
 
 class _DomainsContainer:
@@ -71,8 +72,10 @@ class _DomainsContainer:
     })
 
     @classmethod
-    def _from_environment(cls, env: BuildEnvironment, /) -> Self:
-        create_domains = env.app.registry.create_domains
+    def _from_environment(
+        cls, env: BuildEnvironment, /, *, registry: SphinxComponentRegistry
+    ) -> Self:
+        create_domains = registry.create_domains
         # Initialise domains
         if domains := {domain.name: domain for domain in create_domains(env)}:
             return cls(**domains)  # type: ignore[arg-type]

sphinx/environment/__init__.py

@@ -220,7 +220,9 @@ class BuildEnvironment:
         self._search_index_objnames: dict[int, tuple[str, str, str]] = {}
 
         # all the registered domains, set by the application
-        self.domains: _DomainsContainer = _DomainsContainer._from_environment(self)
+        self.domains: _DomainsContainer = _DomainsContainer._from_environment(
+            self, registry=app.registry
+        )
 
         # set up environment
         self.setup(app)
@@ -259,7 +261,9 @@ class BuildEnvironment:
         # initialise domains
         if self.domains is None:
             # if we are unpickling an environment, we need to recreate the domains
-            self.domains = _DomainsContainer._from_environment(self)
+            self.domains = _DomainsContainer._from_environment(
+                self, registry=app.registry
+            )
         # setup domains (must do after all initialization)
         self.domains._setup()