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https://github.com/kremalicious/metamask-extension.git
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c48d48bb7d
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.
113 lines
4.1 KiB
Diff
113 lines
4.1 KiB
Diff
diff --git a/node_modules/@babel/runtime/helpers/construct.js b/node_modules/@babel/runtime/helpers/construct.js
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index 108b39a..e3c769b 100644
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--- a/node_modules/@babel/runtime/helpers/construct.js
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+++ b/node_modules/@babel/runtime/helpers/construct.js
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@@ -1,26 +1,21 @@
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-var setPrototypeOf = require("./setPrototypeOf.js");
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+// All of MetaMask's supported browsers include `Reflect.construct` support, so
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+// we don't need this polyfill.
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-var isNativeReflectConstruct = require("./isNativeReflectConstruct.js");
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-
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-function _construct(Parent, args, Class) {
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- if (isNativeReflectConstruct()) {
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- module.exports = _construct = Reflect.construct;
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- module.exports["default"] = module.exports, module.exports.__esModule = true;
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- } else {
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- module.exports = _construct = function _construct(Parent, args, Class) {
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- var a = [null];
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- a.push.apply(a, args);
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- var Constructor = Function.bind.apply(Parent, a);
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- var instance = new Constructor();
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- if (Class) setPrototypeOf(instance, Class.prototype);
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- return instance;
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- };
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-
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- module.exports["default"] = module.exports, module.exports.__esModule = true;
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+// This Proxy preseves the two properties that were added by `@babel/runtime`.
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+// I am not entire sure what these properties are for (maybe ES5/ES6
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+// interoperability?) but they have been preserved just in case.
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+const reflectProxy = new Proxy(
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+ Reflect.construct,
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+ {
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+ get: function (target, property) {
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+ if (property === 'default') {
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+ return target;
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+ } else if (property === '__esModule') {
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+ return true;
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+ }
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+ return Reflect.get(...arguments);
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+ }
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}
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+);
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- return _construct.apply(null, arguments);
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-}
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-
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-module.exports = _construct;
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-module.exports["default"] = module.exports, module.exports.__esModule = true;
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\ No newline at end of file
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+module.exports = reflectProxy;
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diff --git a/node_modules/@babel/runtime/helpers/extends.js b/node_modules/@babel/runtime/helpers/extends.js
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index eaf9547..d0474f5 100644
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--- a/node_modules/@babel/runtime/helpers/extends.js
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+++ b/node_modules/@babel/runtime/helpers/extends.js
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@@ -1,20 +1,5 @@
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function _extends() {
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- module.exports = _extends = Object.assign || function (target) {
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- for (var i = 1; i < arguments.length; i++) {
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- var source = arguments[i];
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-
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- for (var key in source) {
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- if (Object.prototype.hasOwnProperty.call(source, key)) {
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- target[key] = source[key];
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- }
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- }
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- }
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-
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- return target;
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- };
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-
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- module.exports["default"] = module.exports, module.exports.__esModule = true;
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- return _extends.apply(this, arguments);
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+ return Object.assign(...arguments)
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}
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module.exports = _extends;
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diff --git a/node_modules/@babel/runtime/helpers/getPrototypeOf.js b/node_modules/@babel/runtime/helpers/getPrototypeOf.js
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index a6916eb..e01b2d6 100644
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--- a/node_modules/@babel/runtime/helpers/getPrototypeOf.js
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+++ b/node_modules/@babel/runtime/helpers/getPrototypeOf.js
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@@ -1,9 +1,5 @@
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function _getPrototypeOf(o) {
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- module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
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- return o.__proto__ || Object.getPrototypeOf(o);
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- };
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- module.exports["default"] = module.exports, module.exports.__esModule = true;
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- return _getPrototypeOf(o);
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+ return Object.getPrototypeOf(o);
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}
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module.exports = _getPrototypeOf;
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diff --git a/node_modules/@babel/runtime/helpers/setPrototypeOf.js b/node_modules/@babel/runtime/helpers/setPrototypeOf.js
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index 415797b..63312f2 100644
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--- a/node_modules/@babel/runtime/helpers/setPrototypeOf.js
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+++ b/node_modules/@babel/runtime/helpers/setPrototypeOf.js
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@@ -1,12 +1,7 @@
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function _setPrototypeOf(o, p) {
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- module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
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- o.__proto__ = p;
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- return o;
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- };
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-
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- module.exports["default"] = module.exports, module.exports.__esModule = true;
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- return _setPrototypeOf(o, p);
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-}
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+ o.__proto__ = p;
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+ return o;
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+};
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module.exports = _setPrototypeOf;
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module.exports["default"] = module.exports, module.exports.__esModule = true;
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\ No newline at end of file
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