From 22716f3df9c9843dad8221744df955676970210e Mon Sep 17 00:00:00 2001
From: Philipinho <16838612+Philipinho@users.noreply.github.com>
Date: Fri, 24 Apr 2026 00:02:15 +0100
Subject: [PATCH] feat(base-formula): add logic functions

---
 packages/base-formula/src/functions/logic.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 packages/base-formula/src/functions/logic.ts

diff --git a/packages/base-formula/src/functions/logic.ts b/packages/base-formula/src/functions/logic.ts
new file mode 100644
index 000000000..42395bfee
--- /dev/null
+++ b/packages/base-formula/src/functions/logic.ts
@@ -0,0 +1,12 @@
+// packages/base-formula/src/functions/logic.ts
+import { register } from "./registry";
+
+register({
+  name: "empty",
+  arity: { min: 1, max: 1 },
+  paramTypes: "any",
+  returnType: "boolean",
+  eval: ([v]) => v == null || v === "" || (typeof v === "object" && v !== null && "__err" in v),
+  doc: "Returns true if the value is null or empty string or an error.",
+  category: "logic",
+});