Do not stringify null literals as object values (#417)

Extract null literals as-is in object values Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com> --------- Co-authored-by: Mateusz Burzyński <mateuszburzynski@gmail.com>
statelyai · Dec 20, 2023 · ade217f · ade217f
1 parent 9f095ed
commit ade217f
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diff --git a/.changeset/smooth-pumas-juggle.md b/.changeset/smooth-pumas-juggle.md
@@ -0,0 +1,5 @@
+---
+'@xstate/machine-extractor': minor
+---
+
+Do not stringify null literals in object values
diff --git a/packages/machine-extractor/src/extractAction.ts b/packages/machine-extractor/src/extractAction.ts
@@ -331,10 +331,11 @@ export function extractObjectRecursively(
   object.properties.forEach((prop) => {
     if (t.isObjectProperty(prop)) {
       if (t.isLiteral(prop.value)) {
-        if (
+        if (t.isNullLiteral(prop.value)) {
+          extracted[getObjectPropertyKey(prop)] = null;
+        } else if (
           t.isRegExpLiteral(prop.value) ||
-          isTemplateLiteralWithExpressions(prop.value) ||
-          t.isNullLiteral(prop.value)
+          isTemplateLiteralWithExpressions(prop.value)
         ) {
           extracted[getObjectPropertyKey(prop)] = fileContent.slice(
             prop.value.start!,