From 7651ccc84e8b9af22b4c10330c41d5bac45a4a2b Mon Sep 17 00:00:00 2001
From: Irmen de Jong <irmen@razorvine.net>
Date: Fri, 11 Oct 2024 00:50:05 +0200
Subject: [PATCH] fix a type error

---
 compiler/src/prog8/compiler/astprocessing/VariousCleanups.kt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compiler/src/prog8/compiler/astprocessing/VariousCleanups.kt b/compiler/src/prog8/compiler/astprocessing/VariousCleanups.kt
index d0ee75e88..6f66c32c9 100644
--- a/compiler/src/prog8/compiler/astprocessing/VariousCleanups.kt
+++ b/compiler/src/prog8/compiler/astprocessing/VariousCleanups.kt
@@ -135,7 +135,9 @@ internal class VariousCleanups(val program: Program, val errors: IErrorReporter,
                 }
 
                 if(isMultiComparisonRecurse(leftBinExpr1)) {
-                    val elementType = needle.inferType(program).getOrElse { throw FatalAstException("invalid needle dt") }
+                    val elementIType = needle.inferType(program)
+                    if(elementIType.isUnknown) return noModifications
+                    val elementType = elementIType.getOrElse { DataType.UNDEFINED }
                     if(values.size==2 || values.size==3 && (elementType==DataType.UBYTE || elementType==DataType.UWORD)) {
                         val numbers = values.map{it.number}.toSet()
                         if(numbers == setOf(0.0, 1.0)) {