fix(core): null check for source selector on MapFrom

nartc · Mar 4, 2021 · a489d9c · a489d9c
1 parent 7fb47ac
commit a489d9c
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/packages/core/src/lib/create-mapper/create-map-for-member.util.ts b/packages/core/src/lib/create-mapper/create-map-for-member.util.ts
@@ -55,10 +55,11 @@ export function createMapForMember<
 
   // if the transformation is MapFrom or MapWith, we have information on the source value selector
   if (
-    mapMemberFn[MapFnClassId.type] === TransformationType.MapFrom ||
-    mapMemberFn[MapFnClassId.type] === TransformationType.MapWith
+    (mapMemberFn[MapFnClassId.type] === TransformationType.MapFrom ||
+      mapMemberFn[MapFnClassId.type] === TransformationType.MapWith) &&
+    mapMemberFn[MapFnClassId.misc] != null
   ) {
-    sourcePath = getMemberPath(mapMemberFn[MapFnClassId.misc]!);
+    sourcePath = getMemberPath(mapMemberFn[MapFnClassId.misc]);
   }
 
   // initialize MappingProperty