Add node shim.

ianjosephwilson · ianjosephwilson · commit efa4dfa600ac · 2026-01-22T23:37:28.000-08:00
diff --git a/tdom/transformer.py b/tdom/transformer.py
@@ -31,6 +31,7 @@
     Text,
     Comment,
     DocumentType,
+    Node,
 )
 from .escaping import (
     escape_html_content_in_tag as default_escape_html_content_in_tag,
@@ -819,13 +820,21 @@ def nodes_from_tcomponent(node_api, parent_node, template, maker_info):
 
     result_template, context_values = invoke_component(component_callable, kwargs)
 
-    if result_template and result_template.strings != ("",):
-        assert not context_values
-        result_tnode = node_api.parse_template(result_template)
-        return to_render_node_queue_item(
-            parent_node,
-            iter(node_api.walk_subtree(parent_node, result_tnode, result_template)),
-        )
+    if isinstance(result_template, Template):
+        if result_template.strings != ("",):
+            if context_values:
+                raise NotImplementedError("We have no implemented these yet.")
+            result_tnode = node_api.parse_template(result_template)
+            return to_render_node_queue_item(
+                parent_node,
+                iter(node_api.walk_subtree(parent_node, result_tnode, result_template)),
+            )
+    # SHIM for old-style tail-call-style wrapping.
+    elif isinstance(result_template, Node):
+        if isinstance(result_template, Fragment):
+            parent_node.children.extend(result_template.children)
+        else:
+            parent_node.children.append(result_template)
 
 
 @dataclass(frozen=True)
diff --git a/tdom/transformer_test.py b/tdom/transformer_test.py
@@ -14,6 +14,7 @@
 )
 from .nodes import Element, Text, DocumentType, Comment, Fragment
 from .transformer import NodeService
+from .processor import html
 
 
 THEME_CTX = ContextVar("theme", default="default")
@@ -549,3 +550,12 @@ def test_node_api_comment(node_api):
 def test_node_api_document_type(node_api):
     el = node_api.make_node_from_template(t"<!doctype html>")
     assert el == Fragment(children=[DocumentType("html")])
+
+
+def test_node_api_component_node_shim(node_api):
+    def Comp() -> Element:
+        name = "Node Mode"
+        return t.cast(Element, html(t"<div>{name}</div>"))
+
+    el = node_api.make_node_from_template(t"<div><{Comp} /></div>")
+    assert el == Element("div", children=[Element("div", children=[Text("Node Mode")])])
