From 6fd7030b954562c5e5c1c1185066e80cad29fd25 Mon Sep 17 00:00:00 2001
From: Jonathan Tatum <jdtatum@google.com>
Date: Thu, 21 May 2026 18:17:46 -0700
Subject: [PATCH] not yet exported

PiperOrigin-RevId: 919358445
---
 common/expr_factory.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/expr_factory.h b/common/expr_factory.h
index 773217ad9..5607d8deb 100644
--- a/common/expr_factory.h
+++ b/common/expr_factory.h
@@ -32,6 +32,7 @@ namespace cel {
 
 class MacroExprFactory;
 class ParserMacroExprFactory;
+class OptimizerExprFactory;
 
 class ExprFactory {
  protected:
@@ -378,6 +379,7 @@ class ExprFactory {
  private:
   friend class MacroExprFactory;
   friend class ParserMacroExprFactory;
+  friend class OptimizerExprFactory;
 
   ExprFactory() : accu_var_(kAccumulatorVariableName) {}