Security upgrades

node_modules/@material-ui/system/esm/compose.js

@@ -0,0 +1,45 @@
+import _extends from "@babel/runtime/helpers/esm/extends";
+import merge from './merge';
+
+function compose() {
+  for (var _len = arguments.length, styles = new Array(_len), _key = 0; _key < _len; _key++) {
+    styles[_key] = arguments[_key];
+  }
+
+  var fn = function fn(props) {
+    return styles.reduce(function (acc, style) {
+      var output = style(props);
+
+      if (output) {
+        return merge(acc, output);
+      }
+
+      return acc;
+    }, {});
+  }; // Alternative approach that doesn't yield any performance gain.
+  // const handlers = styles.reduce((acc, style) => {
+  //   style.filterProps.forEach(prop => {
+  //     acc[prop] = style;
+  //   });
+  //   return acc;
+  // }, {});
+  // const fn = props => {
+  //   return Object.keys(props).reduce((acc, prop) => {
+  //     if (handlers[prop]) {
+  //       return merge(acc, handlers[prop](props));
+  //     }
+  //     return acc;
+  //   }, {});
+  // };
+
+
+  fn.propTypes = process.env.NODE_ENV !== 'production' ? styles.reduce(function (acc, style) {
+    return _extends(acc, style.propTypes);
+  }, {}) : {};
+  fn.filterProps = styles.reduce(function (acc, style) {
+    return acc.concat(style.filterProps);
+  }, []);
+  return fn;
+}
+
+export default compose;