copy if array instead of using clone

babel · Mar 26, 2021 · 140441c · 140441c
1 parent 6bff19c
commit 140441c
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/packages/babel-types/src/builders/builder.ts b/packages/babel-types/src/builders/builder.ts
@@ -1,4 +1,3 @@
-import loClone from "lodash/clone";
 import { NODE_FIELDS, BUILDER_KEYS } from "../definitions";
 import validate from "../validators/validate";
 import type * as t from "..";
@@ -23,7 +22,9 @@ export default function builder<T extends t.Node>(
 
     let arg;
     if (i < countArgs) arg = args[i];
-    if (arg === undefined) arg = loClone(field.default);
+    if (arg === undefined) {
+      arg = Array.isArray(field.default) ? [] : field.default;
+    }
 
     node[key] = arg;
     i++;

diff --git a/packages/babel-types/src/definitions/utils.ts b/packages/babel-types/src/definitions/utils.ts
@@ -280,7 +280,7 @@ export default function defineType(
       for (const key of keys) {
         const field = inherits.fields[key];
         fields[key] = {
-          default: field.default,
+          default: Array.isArray(field.default) ? [] : field.default,
           optional: field.optional,
           validate: field.validate,
         };