Remove some lodash/cloneDeep calls (#13032)

packages/babel-core/src/transformation/normalize-file.js

@@ -3,13 +3,13 @@
 import fs from "fs";
 import path from "path";
 import buildDebug from "debug";
-import cloneDeep from "lodash/cloneDeep";
 import type { Handler } from "gensync";
 import * as t from "@babel/types";
 import type { PluginPasses } from "../config";
 import convertSourceMap, { typeof Converter } from "convert-source-map";
 import File from "./file/file";
 import parser from "../parser";
+import cloneDeep from "./util/clone-deep";
 
 const debug = buildDebug("babel:transform:file");
 const LARGE_INPUT_SOURCEMAP_THRESHOLD = 1_000_000;
@@ -35,8 +35,7 @@ export default function* normalizeFile(
       throw new Error("AST root must be a Program or File node");
     }
 
-    const { cloneInputAst } = options;
-    if (cloneInputAst) {
+    if (options.cloneInputAst) {
       ast = cloneDeep(ast);
     }
   } else {

packages/babel-core/src/transformation/util/clone-deep-browser.js

@@ -0,0 +1,19 @@
+const serialized = "$$ babel internal serialized type" + Math.random();
+
+function serialize(key, value) {
+  if (typeof value !== "bigint") return value;
+  return {
+    [serialized]: "BigInt",
+    value: value.toString(),
+  };
+}
+
+function revive(key, value) {
+  if (!value || typeof value !== "object") return value;
+  if (value[serialized] !== "BigInt") return value;
+  return BigInt(value.value);
+}
+
+export default function (value) {
+  return JSON.parse(JSON.stringify(value, serialize), revive);
+}

packages/babel-core/src/transformation/util/clone-deep.js

@@ -0,0 +1,9 @@
+import v8 from "v8";
+import cloneDeep from "./clone-deep-browser";
+
+export default function (value) {
+  if (v8.deserialize && v8.serialize) {
+    return v8.deserialize(v8.serialize(value));
+  }
+  return cloneDeep(value);
+}