From 01a4214265a4ef680d7ba80645f45985ea3c5c63 Mon Sep 17 00:00:00 2001
From: PopSlime <popslime@qq.com>
Date: Sun, 6 Nov 2022 12:11:55 +0800
Subject: [PATCH] Fix exception handling on failure to get operator.

---
 Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs b/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs
index c6f3629..6b277f3 100644
--- a/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs
+++ b/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs
@@ -157,7 +157,11 @@ namespace Cryville.Common.Pdt {
 		internal void Operate(PdtOperatorSignature sig) {
 			PdtOperator op;
 			try { op = GetOperator(sig); }
-			catch (Exception) { _framecount -= sig.ParamCount; return; }
+			catch (Exception) {
+				for (int i = 0; i < sig.ParamCount; i++)
+					DiscardStack();
+				throw;
+			}
 			Operate(op, sig.ParamCount);
 		}
 		/// <summary>