fix(core): change how File is handled in map

nartc · Nov 12, 2021 · 57df4ad · 57df4ad
1 parent 03b6058
commit 57df4ad
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/packages/core/src/lib/map/map.ts b/packages/core/src/lib/map/map.ts
@@ -224,11 +224,13 @@ Original error: ${originalError}`;
       )(sourceObj);
 
       // if null/undefined
-      // if isDate
+      // if isDate, isFile
       // if metadata is null, treat as-is
       if (
         mapInitializedValue == null ||
         mapInitializedValue instanceof Date ||
+        Object.prototype.toString.call(mapInitializedValue).slice(8, -1) ===
+          'File' ||
         isMetadataNull
       ) {
         setMember(() => mapInitializedValue);

diff --git a/packages/core/src/lib/utils/is-file-constructor.util.ts b/packages/core/src/lib/utils/is-file-constructor.util.ts
@@ -1,3 +1,6 @@
 export function isFileConstructor(value: unknown): boolean {
-  return value === File;
+  const constructorName = value['prototype']
+    ? value['prototype'].constructor.name
+    : value['name'];
+  return constructorName === 'File';
 }