Add m-esr52 at 52.6.0

1 files changed, 16 insertions, 0 deletions

diff --git a/js/src/builtin/Promise.js b/js/src/builtin/Promise.js
new file mode 100644
index 000000000..704cbab0b
--- /dev/null
+++ b/js/src/builtin/Promise.js
@@ -0,0 +1,16 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// ES6, 25.4.4.6.
+function Promise_static_get_species() {
+    // Step 1.
+    return this;
+}
+_SetCanonicalName(Promise_static_get_species, "get [Symbol.species]");
+
+// ES6, 25.4.5.1.
+function Promise_catch(onRejected) {
+    // Steps 1-2.
+    return callContentFunction(this.then, this, undefined, onRejected);
+}