From a090fe3834428c06c4c80cbb5c6ee10655d50a57 Mon Sep 17 00:00:00 2001
From: Irmen de Jong <irmen@razorvine.net>
Date: Thu, 23 Dec 2021 23:51:21 +0100
Subject: [PATCH] no compiler optimizer crash on certain missing symbol

---
 codeOptimizers/src/prog8/optimizer/StatementOptimizer.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/codeOptimizers/src/prog8/optimizer/StatementOptimizer.kt b/codeOptimizers/src/prog8/optimizer/StatementOptimizer.kt
index a88726714..787bc095f 100644
--- a/codeOptimizers/src/prog8/optimizer/StatementOptimizer.kt
+++ b/codeOptimizers/src/prog8/optimizer/StatementOptimizer.kt
@@ -367,7 +367,7 @@ class StatementOptimizer(private val program: Program,
 
         val targetIDt = assignment.target.inferType(program)
         if(!targetIDt.isKnown)
-            throw FatalAstException("can't infer type of assignment target")
+            return noModifications
 
         // optimize binary expressions a bit
         val bexpr=assignment.value as? BinaryExpression