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mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-12-23 01:39:44 +01:00
metamask-extension/patches/@babel+runtime+7.16.3.patch
Mark Stacey c48d48bb7d
Update @babel/runtime patch to fix lockdown error (#13109)
We are currently patching `@babel/runtime` to fix various lockdown
errors caused by `@babel/runtime` modifying globals as part of various
polyfills. There was one lockdown error that was showing up in Sentry
error reports, which is the polyfill used for `Reflect.construct`.

All of our supported browsers include this API, so the polyfill has
been replaced with a Proxy that returns the `Reflect.construct`
function directly, except with the addition of the `default` and
`__esModule` properties. I don't know what these properties are for
(maybe ES5/ES6 interoperability?) but I left them just in case they
were being relied upon.
2021-12-16 10:00:11 -10:00

113 lines
4.1 KiB
Diff

diff --git a/node_modules/@babel/runtime/helpers/construct.js b/node_modules/@babel/runtime/helpers/construct.js
index 108b39a..e3c769b 100644
--- a/node_modules/@babel/runtime/helpers/construct.js
+++ b/node_modules/@babel/runtime/helpers/construct.js
@@ -1,26 +1,21 @@
-var setPrototypeOf = require("./setPrototypeOf.js");
+// All of MetaMask's supported browsers include `Reflect.construct` support, so
+// we don't need this polyfill.
-var isNativeReflectConstruct = require("./isNativeReflectConstruct.js");
-
-function _construct(Parent, args, Class) {
- if (isNativeReflectConstruct()) {
- module.exports = _construct = Reflect.construct;
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- } else {
- module.exports = _construct = function _construct(Parent, args, Class) {
- var a = [null];
- a.push.apply(a, args);
- var Constructor = Function.bind.apply(Parent, a);
- var instance = new Constructor();
- if (Class) setPrototypeOf(instance, Class.prototype);
- return instance;
- };
-
- module.exports["default"] = module.exports, module.exports.__esModule = true;
+// This Proxy preseves the two properties that were added by `@babel/runtime`.
+// I am not entire sure what these properties are for (maybe ES5/ES6
+// interoperability?) but they have been preserved just in case.
+const reflectProxy = new Proxy(
+ Reflect.construct,
+ {
+ get: function (target, property) {
+ if (property === 'default') {
+ return target;
+ } else if (property === '__esModule') {
+ return true;
+ }
+ return Reflect.get(...arguments);
+ }
}
+);
- return _construct.apply(null, arguments);
-}
-
-module.exports = _construct;
-module.exports["default"] = module.exports, module.exports.__esModule = true;
\ No newline at end of file
+module.exports = reflectProxy;
diff --git a/node_modules/@babel/runtime/helpers/extends.js b/node_modules/@babel/runtime/helpers/extends.js
index eaf9547..d0474f5 100644
--- a/node_modules/@babel/runtime/helpers/extends.js
+++ b/node_modules/@babel/runtime/helpers/extends.js
@@ -1,20 +1,5 @@
function _extends() {
- module.exports = _extends = Object.assign || function (target) {
- for (var i = 1; i < arguments.length; i++) {
- var source = arguments[i];
-
- for (var key in source) {
- if (Object.prototype.hasOwnProperty.call(source, key)) {
- target[key] = source[key];
- }
- }
- }
-
- return target;
- };
-
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- return _extends.apply(this, arguments);
+ return Object.assign(...arguments)
}
module.exports = _extends;
diff --git a/node_modules/@babel/runtime/helpers/getPrototypeOf.js b/node_modules/@babel/runtime/helpers/getPrototypeOf.js
index a6916eb..e01b2d6 100644
--- a/node_modules/@babel/runtime/helpers/getPrototypeOf.js
+++ b/node_modules/@babel/runtime/helpers/getPrototypeOf.js
@@ -1,9 +1,5 @@
function _getPrototypeOf(o) {
- module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
- return o.__proto__ || Object.getPrototypeOf(o);
- };
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- return _getPrototypeOf(o);
+ return Object.getPrototypeOf(o);
}
module.exports = _getPrototypeOf;
diff --git a/node_modules/@babel/runtime/helpers/setPrototypeOf.js b/node_modules/@babel/runtime/helpers/setPrototypeOf.js
index 415797b..63312f2 100644
--- a/node_modules/@babel/runtime/helpers/setPrototypeOf.js
+++ b/node_modules/@babel/runtime/helpers/setPrototypeOf.js
@@ -1,12 +1,7 @@
function _setPrototypeOf(o, p) {
- module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
- o.__proto__ = p;
- return o;
- };
-
- module.exports["default"] = module.exports, module.exports.__esModule = true;
- return _setPrototypeOf(o, p);
-}
+ o.__proto__ = p;
+ return o;
+};
module.exports = _setPrototypeOf;
module.exports["default"] = module.exports, module.exports.__esModule = true;
\ No newline at end of file