https://github.com/babel/babel/pull/16150

kdy1 · Jan 30, 2024 · 8083491 · 8083491
1 parent f5ee6d1
commit 8083491
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Showing 2 changed files with 4 additions and 6 deletions.
diff --git a/crates/swc_ecma_transforms_base/src/helpers/_using.js b/crates/swc_ecma_transforms_base/src/helpers/_using.js
@@ -1,9 +1,7 @@
 function _using(stack, value, isAwait) {
     if (value === null || value === void 0) return value;
-    if (typeof value !== "object") {
-        throw new TypeError(
-            "using declarations can only be used with objects, null, or undefined."
-        );
+    if (Object(value) !== value) {
+        throw new TypeError("using declarations can only be used with objects, functions, null, or undefined.");
     }
     // core-js-pure uses Symbol.for for polyfilling well-known symbols
     if (isAwait) {

diff --git a/packages/helpers/esm/_using.js b/packages/helpers/esm/_using.js
@@ -2,8 +2,8 @@
 
 export function _using(stack, value, isAwait) {
     if (value === null || value === void 0) return value;
-    if (typeof value !== "object") {
-        throw new TypeError("using declarations can only be used with objects, null, or undefined.");
+    if (Object(value) !== value) {
+        throw new TypeError("using declarations can only be used with objects, functions, null, or undefined.");
     }
     // core-js-pure uses Symbol.for for polyfilling well-known symbols
     if (isAwait) {