1 files changed, 136 insertions, 0 deletions
diff --git a/devtools/client/shared/vendor/reselect.js b/devtools/client/shared/vendor/reselect.js
new file mode 100644
index 000000000..4d51d342c
--- /dev/null
+++ b/devtools/client/shared/vendor/reselect.js
@@ -0,0 +1,136 @@
+(function (global, factory) {
+  if (typeof define === "function" && define.amd) {
+    define('Reselect', ['exports'], factory);
+  } else if (typeof exports !== "undefined") {
+    factory(exports);
+  } else {
+    var mod = {
+      exports: {}
+    };
+    factory(mod.exports);
+    global.Reselect = mod.exports;
+  }
+})(this, function (exports) {
+  'use strict';
+
+  exports.__esModule = true;
+  exports.defaultMemoize = defaultMemoize;
+  exports.createSelectorCreator = createSelectorCreator;
+  exports.createStructuredSelector = createStructuredSelector;
+
+  function _toConsumableArray(arr) {
+    if (Array.isArray(arr)) {
+      for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) {
+        arr2[i] = arr[i];
+      }
+
+      return arr2;
+    } else {
+      return Array.from(arr);
+    }
+  }
+
+  function defaultEqualityCheck(a, b) {
+    return a === b;
+  }
+
+  function defaultMemoize(func) {
+    var equalityCheck = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultEqualityCheck;
+
+    var lastArgs = null;
+    var lastResult = null;
+    var isEqualToLastArg = function isEqualToLastArg(value, index) {
+      return equalityCheck(value, lastArgs[index]);
+    };
+    return function () {
+      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      if (lastArgs === null || lastArgs.length !== args.length || !args.every(isEqualToLastArg)) {
+        lastResult = func.apply(undefined, args);
+      }
+      lastArgs = args;
+      return lastResult;
+    };
+  }
+
+  function getDependencies(funcs) {
+    var dependencies = Array.isArray(funcs[0]) ? funcs[0] : funcs;
+
+    if (!dependencies.every(function (dep) {
+      return typeof dep === 'function';
+    })) {
+      var dependencyTypes = dependencies.map(function (dep) {
+        return typeof dep;
+      }).join(', ');
+      throw new Error('Selector creators expect all input-selectors to be functions, ' + ('instead received the following types: [' + dependencyTypes + ']'));
+    }
+
+    return dependencies;
+  }
+
+  function createSelectorCreator(memoize) {
+    for (var _len2 = arguments.length, memoizeOptions = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
+      memoizeOptions[_key2 - 1] = arguments[_key2];
+    }
+
+    return function () {
+      for (var _len3 = arguments.length, funcs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+        funcs[_key3] = arguments[_key3];
+      }
+
+      var recomputations = 0;
+      var resultFunc = funcs.pop();
+      var dependencies = getDependencies(funcs);
+
+      var memoizedResultFunc = memoize.apply(undefined, [function () {
+        recomputations++;
+        return resultFunc.apply(undefined, arguments);
+      }].concat(memoizeOptions));
+
+      var selector = function selector(state, props) {
+        for (var _len4 = arguments.length, args = Array(_len4 > 2 ? _len4 - 2 : 0), _key4 = 2; _key4 < _len4; _key4++) {
+          args[_key4 - 2] = arguments[_key4];
+        }
+
+        var params = dependencies.map(function (dependency) {
+          return dependency.apply(undefined, [state, props].concat(args));
+        });
+        return memoizedResultFunc.apply(undefined, _toConsumableArray(params));
+      };
+
+      selector.resultFunc = resultFunc;
+      selector.recomputations = function () {
+        return recomputations;
+      };
+      selector.resetRecomputations = function () {
+        return recomputations = 0;
+      };
+      return selector;
+    };
+  }
+
+  var createSelector = exports.createSelector = createSelectorCreator(defaultMemoize);
+
+  function createStructuredSelector(selectors) {
+    var selectorCreator = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : createSelector;
+
+    if (typeof selectors !== 'object') {
+      throw new Error('createStructuredSelector expects first argument to be an object ' + ('where each property is a selector, instead received a ' + typeof selectors));
+    }
+    var objectKeys = Object.keys(selectors);
+    return selectorCreator(objectKeys.map(function (key) {
+      return selectors[key];
+    }), function () {
+      for (var _len5 = arguments.length, values = Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
+        values[_key5] = arguments[_key5];
+      }
+
+      return values.reduce(function (composition, value, index) {
+        composition[objectKeys[index]] = value;
+        return composition;
+      }, {});
+    });
+  }
+});