use real structuredClone when available

ungap · Oct 30, 2021 · 4bacb50 · 4bacb50
1 parent 51717e8
commit 4bacb50
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Showing 3 changed files with 8 additions and 2 deletions.
diff --git a/cjs/index.js b/cjs/index.js
@@ -14,7 +14,9 @@ const dflt = {transfer: []};
  *  This is currently not supported, all values are always cloned.
  * @returns {Record[]}
  */
-Object.defineProperty(exports, '__esModule', {value: true}).default = (any, options = dflt) => deserialize(serialize(any, options));
+Object.defineProperty(exports, '__esModule', {value: true}).default = typeof structuredClone === "function" ?
+  structuredClone :
+  (any, options = dflt) => deserialize(serialize(any, options));
 
 exports.deserialize = deserialize;
 exports.serialize = serialize;
diff --git a/esm/index.js b/esm/index.js
@@ -13,6 +13,8 @@ const dflt = {transfer: []};
  *  This is currently not supported, all values are always cloned.
  * @returns {Record[]}
  */
-export default (any, options = dflt) => deserialize(serialize(any, options));
+export default typeof structuredClone === "function" ?
+  structuredClone :
+  (any, options = dflt) => deserialize(serialize(any, options));
 
 export {deserialize, serialize};
diff --git a/test/index.js b/test/index.js
@@ -39,6 +39,8 @@ test();
 delete require.cache[require.resolve('../cjs')];
 delete require.cache[require.resolve('../cjs/deserialize.js')];
 globalThis.self = globalThis;
+if (!globalThis.structuredClone)
+  globalThis.structuredClone = any => deserialize(serialize(any));
 require('../cjs');
 
 ({serialize, deserialize, default: structuredClone} = require('../cjs'));