From ab67248bfa700abd950ea3578f84bcd5ca11d2c2 Mon Sep 17 00:00:00 2001
From: fireboltofdeath <24422634+Fireboltofdeath@users.noreply.github.com>
Date: Sun, 15 May 2022 17:46:39 -0400
Subject: [PATCH] Remove symbols in union type guard generation

---
 src/util/functions/buildGuardFromType.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/util/functions/buildGuardFromType.ts b/src/util/functions/buildGuardFromType.ts
index 89bc6ff..ba6f279 100644
--- a/src/util/functions/buildGuardFromType.ts
+++ b/src/util/functions/buildGuardFromType.ts
@@ -286,6 +286,11 @@ function simplifyUnion(type: ts.UnionType) {
 	const types = new Array<ts.Type>();
 
 	for (const type of currentTypes) {
+		// We do not need to generate symbol types as they don't exist in Lua.
+		if (type.flags & ts.TypeFlags.ESSymbolLike) {
+			continue;
+		}
+
 		if (!type.symbol || !type.symbol.parent) {
 			types.push(type);
 			continue;