reduce number of iterations over hooks during rendering

reflex/.templates/jinja/web/pages/macros.js.jinja2

@@ -1,45 +1,29 @@
-{% macro sortHooks(hooks) %}
-    {% set internal_hooks = [] %}
-    {% set pre_trigger_hooks = [] %}
-    {% set post_trigger_hooks = [] %}
-
-    {% for hook, data in hooks %}
-        {% if data and data.position and data.position == const.hook_position.INTERNAL %}
-            {% set internal_hooks = internal_hooks + [hook] %}
-        {% elif data and data.position and data.position == const.hook_position.POST_TRIGGER %}
-            {% set post_trigger_hooks = post_trigger_hooks+ [hook] %}
-        {% else %}
-            {% set pre_trigger_hooks = pre_trigger_hooks + [hook] %}
-        {% endif %}
-    {% endfor %}
-{% endmacro %}
-
 {% macro renderHooks(hooks) %}
-  {{ sortHooks(hooks) }}
+  {% set sorted_hooks = sort_hooks(hooks) %}
 
   {# Render the grouped hooks #}
-  {% for hook in internal_hooks %}
+   {% for hook, _ in sorted_hooks[const.hook_position.INTERNAL] %}
   {{ hook }}
   {% endfor %}
 
-  {% for hook in pre_trigger_hooks %}
+  {% for hook, _ in sorted_hooks[const.hook_position.PRE_TRIGGER] %}
   {{ hook }}
   {% endfor %}
 
-  {% for hook in post_trigger_hooks %}
+  {% for hook, _ in sorted_hooks[const.hook_position.POST_TRIGGER] %}
   {{ hook }}
   {% endfor %}
 {% endmacro %}
 
 {% macro renderHooksWithMemo(hooks, memo)%}
-  {{ sortHooks(hooks) }}
+  {% set sorted_hooks = sort_hooks(hooks) %}
 
   {# Render the grouped hooks #}
-  {% for hook in internal_hooks %}
+  {% for hook, _ in sorted_hooks[const.hook_position.INTERNAL] %}
   {{ hook }}
   {% endfor %}
 
-  {% for hook in pre_trigger_hooks %}
+  {% for hook, _ in sorted_hooks[const.hook_position.PRE_TRIGGER] %}
   {{ hook }}
   {% endfor %}
 
@@ -47,7 +31,7 @@
   {{ hook }}
   {% endfor %}
 
-  {% for hook in post_trigger_hooks %}
+  {% for hook, _ in sorted_hooks[const.hook_position.POST_TRIGGER] %}
   {{ hook }}
   {% endfor %}
 

reflex/compiler/templates.py

@@ -3,9 +3,43 @@
 from jinja2 import Environment, FileSystemLoader, Template
 
 from reflex import constants
+from reflex.constants import Hooks
 from reflex.utils.format import format_state_name, json_dumps
 
 
+def _sort_hooks(hooks):
+    """Sort the hooks by their position.
+
+    Args:
+        hooks: The hooks to sort.
+
+    Returns:
+        The sorted hooks.
+    """
+    sorted_hooks = {
+        Hooks.HookPosition.INTERNAL: [],
+        Hooks.HookPosition.PRE_TRIGGER: [],
+        Hooks.HookPosition.POST_TRIGGER: [],
+    }
+
+    for hook, data in hooks:
+        if data and data.position and data.position == Hooks.HookPosition.INTERNAL:
+            sorted_hooks[Hooks.HookPosition.INTERNAL].append((hook, data))
+        elif not data or (
+            not data.position
+            or data.position == constants.Hooks.HookPosition.PRE_TRIGGER
+        ):
+            sorted_hooks[Hooks.HookPosition.PRE_TRIGGER].append((hook, data))
+        elif (
+            data
+            and data.position
+            and data.position == constants.Hooks.HookPosition.POST_TRIGGER
+        ):
+            sorted_hooks[Hooks.HookPosition.POST_TRIGGER].append((hook, data))
+
+    return sorted_hooks
+
+
 class ReflexJinjaEnvironment(Environment):
     """The template class for jinja environment."""
 
@@ -47,6 +81,7 @@ class ReflexJinjaEnvironment(Environment):
             "frontend_exception_state": constants.CompileVars.FRONTEND_EXCEPTION_STATE_FULL,
             "hook_position": constants.Hooks.HookPosition,
         }
+        self.globals["sort_hooks"] = _sort_hooks
 
 
 def get_template(name: str) -> Template: