node_modules

1 files changed, 340 insertions, 0 deletions

diff --git a/node_modules/react/lib/ReactElement.js b/node_modules/react/lib/ReactElement.js
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+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+'use strict';
+
+var _assign = require('object-assign');
+
+var ReactCurrentOwner = require('./ReactCurrentOwner');
+
+var warning = require('fbjs/lib/warning');
+var canDefineProperty = require('./canDefineProperty');
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+var REACT_ELEMENT_TYPE = require('./ReactElementSymbol');
+
+var RESERVED_PROPS = {
+  key: true,
+  ref: true,
+  __self: true,
+  __source: true
+};
+
+var specialPropKeyWarningShown, specialPropRefWarningShown;
+
+function hasValidRef(config) {
+  if (process.env.NODE_ENV !== 'production') {
+    if (hasOwnProperty.call(config, 'ref')) {
+      var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;
+      if (getter && getter.isReactWarning) {
+        return false;
+      }
+    }
+  }
+  return config.ref !== undefined;
+}
+
+function hasValidKey(config) {
+  if (process.env.NODE_ENV !== 'production') {
+    if (hasOwnProperty.call(config, 'key')) {
+      var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
+      if (getter && getter.isReactWarning) {
+        return false;
+      }
+    }
+  }
+  return config.key !== undefined;
+}
+
+function defineKeyPropWarningGetter(props, displayName) {
+  var warnAboutAccessingKey = function () {
+    if (!specialPropKeyWarningShown) {
+      specialPropKeyWarningShown = true;
+      process.env.NODE_ENV !== 'production' ? warning(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName) : void 0;
+    }
+  };
+  warnAboutAccessingKey.isReactWarning = true;
+  Object.defineProperty(props, 'key', {
+    get: warnAboutAccessingKey,
+    configurable: true
+  });
+}
+
+function defineRefPropWarningGetter(props, displayName) {
+  var warnAboutAccessingRef = function () {
+    if (!specialPropRefWarningShown) {
+      specialPropRefWarningShown = true;
+      process.env.NODE_ENV !== 'production' ? warning(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName) : void 0;
+    }
+  };
+  warnAboutAccessingRef.isReactWarning = true;
+  Object.defineProperty(props, 'ref', {
+    get: warnAboutAccessingRef,
+    configurable: true
+  });
+}
+
+/**
+ * Factory method to create a new React element. This no longer adheres to
+ * the class pattern, so do not use new to call it. Also, no instanceof check
+ * will work. Instead test $$typeof field against Symbol.for('react.element') to check
+ * if something is a React Element.
+ *
+ * @param {*} type
+ * @param {*} key
+ * @param {string|object} ref
+ * @param {*} self A *temporary* helper to detect places where `this` is
+ * different from the `owner` when React.createElement is called, so that we
+ * can warn. We want to get rid of owner and replace string `ref`s with arrow
+ * functions, and as long as `this` and owner are the same, there will be no
+ * change in behavior.
+ * @param {*} source An annotation object (added by a transpiler or otherwise)
+ * indicating filename, line number, and/or other information.
+ * @param {*} owner
+ * @param {*} props
+ * @internal
+ */
+var ReactElement = function (type, key, ref, self, source, owner, props) {
+  var element = {
+    // This tag allow us to uniquely identify this as a React Element
+    $$typeof: REACT_ELEMENT_TYPE,
+
+    // Built-in properties that belong on the element
+    type: type,
+    key: key,
+    ref: ref,
+    props: props,
+
+    // Record the component responsible for creating this element.
+    _owner: owner
+  };
+
+  if (process.env.NODE_ENV !== 'production') {
+    // The validation flag is currently mutative. We put it on
+    // an external backing store so that we can freeze the whole object.
+    // This can be replaced with a WeakMap once they are implemented in
+    // commonly used development environments.
+    element._store = {};
+
+    // To make comparing ReactElements easier for testing purposes, we make
+    // the validation flag non-enumerable (where possible, which should
+    // include every environment we run tests in), so the test framework
+    // ignores it.
+    if (canDefineProperty) {
+      Object.defineProperty(element._store, 'validated', {
+        configurable: false,
+        enumerable: false,
+        writable: true,
+        value: false
+      });
+      // self and source are DEV only properties.
+      Object.defineProperty(element, '_self', {
+        configurable: false,
+        enumerable: false,
+        writable: false,
+        value: self
+      });
+      // Two elements created in two different places should be considered
+      // equal for testing purposes and therefore we hide it from enumeration.
+      Object.defineProperty(element, '_source', {
+        configurable: false,
+        enumerable: false,
+        writable: false,
+        value: source
+      });
+    } else {
+      element._store.validated = false;
+      element._self = self;
+      element._source = source;
+    }
+    if (Object.freeze) {
+      Object.freeze(element.props);
+      Object.freeze(element);
+    }
+  }
+
+  return element;
+};
+
+/**
+ * Create and return a new ReactElement of the given type.
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.createelement
+ */
+ReactElement.createElement = function (type, config, children) {
+  var propName;
+
+  // Reserved names are extracted
+  var props = {};
+
+  var key = null;
+  var ref = null;
+  var self = null;
+  var source = null;
+
+  if (config != null) {
+    if (hasValidRef(config)) {
+      ref = config.ref;
+    }
+    if (hasValidKey(config)) {
+      key = '' + config.key;
+    }
+
+    self = config.__self === undefined ? null : config.__self;
+    source = config.__source === undefined ? null : config.__source;
+    // Remaining properties are added to a new props object
+    for (propName in config) {
+      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
+        props[propName] = config[propName];
+      }
+    }
+  }
+
+  // Children can be more than one argument, and those are transferred onto
+  // the newly allocated props object.
+  var childrenLength = arguments.length - 2;
+  if (childrenLength === 1) {
+    props.children = children;
+  } else if (childrenLength > 1) {
+    var childArray = Array(childrenLength);
+    for (var i = 0; i < childrenLength; i++) {
+      childArray[i] = arguments[i + 2];
+    }
+    if (process.env.NODE_ENV !== 'production') {
+      if (Object.freeze) {
+        Object.freeze(childArray);
+      }
+    }
+    props.children = childArray;
+  }
+
+  // Resolve default props
+  if (type && type.defaultProps) {
+    var defaultProps = type.defaultProps;
+    for (propName in defaultProps) {
+      if (props[propName] === undefined) {
+        props[propName] = defaultProps[propName];
+      }
+    }
+  }
+  if (process.env.NODE_ENV !== 'production') {
+    if (key || ref) {
+      if (typeof props.$$typeof === 'undefined' || props.$$typeof !== REACT_ELEMENT_TYPE) {
+        var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
+        if (key) {
+          defineKeyPropWarningGetter(props, displayName);
+        }
+        if (ref) {
+          defineRefPropWarningGetter(props, displayName);
+        }
+      }
+    }
+  }
+  return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
+};
+
+/**
+ * Return a function that produces ReactElements of a given type.
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.createfactory
+ */
+ReactElement.createFactory = function (type) {
+  var factory = ReactElement.createElement.bind(null, type);
+  // Expose the type on the factory and the prototype so that it can be
+  // easily accessed on elements. E.g. `<Foo />.type === Foo`.
+  // This should not be named `constructor` since this may not be the function
+  // that created the element, and it may not even be a constructor.
+  // Legacy hook TODO: Warn if this is accessed
+  factory.type = type;
+  return factory;
+};
+
+ReactElement.cloneAndReplaceKey = function (oldElement, newKey) {
+  var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);
+
+  return newElement;
+};
+
+/**
+ * Clone and return a new ReactElement using element as the starting point.
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.cloneelement
+ */
+ReactElement.cloneElement = function (element, config, children) {
+  var propName;
+
+  // Original props are copied
+  var props = _assign({}, element.props);
+
+  // Reserved names are extracted
+  var key = element.key;
+  var ref = element.ref;
+  // Self is preserved since the owner is preserved.
+  var self = element._self;
+  // Source is preserved since cloneElement is unlikely to be targeted by a
+  // transpiler, and the original source is probably a better indicator of the
+  // true owner.
+  var source = element._source;
+
+  // Owner will be preserved, unless ref is overridden
+  var owner = element._owner;
+
+  if (config != null) {
+    if (hasValidRef(config)) {
+      // Silently steal the ref from the parent.
+      ref = config.ref;
+      owner = ReactCurrentOwner.current;
+    }
+    if (hasValidKey(config)) {
+      key = '' + config.key;
+    }
+
+    // Remaining properties override existing props
+    var defaultProps;
+    if (element.type && element.type.defaultProps) {
+      defaultProps = element.type.defaultProps;
+    }
+    for (propName in config) {
+      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
+        if (config[propName] === undefined && defaultProps !== undefined) {
+          // Resolve default props
+          props[propName] = defaultProps[propName];
+        } else {
+          props[propName] = config[propName];
+        }
+      }
+    }
+  }
+
+  // Children can be more than one argument, and those are transferred onto
+  // the newly allocated props object.
+  var childrenLength = arguments.length - 2;
+  if (childrenLength === 1) {
+    props.children = children;
+  } else if (childrenLength > 1) {
+    var childArray = Array(childrenLength);
+    for (var i = 0; i < childrenLength; i++) {
+      childArray[i] = arguments[i + 2];
+    }
+    props.children = childArray;
+  }
+
+  return ReactElement(element.type, key, ref, self, source, owner, props);
+};
+
+/**
+ * Verifies the object is a ReactElement.
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.isvalidelement
+ * @param {?object} object
+ * @return {boolean} True if `object` is a valid component.
+ * @final
+ */
+ReactElement.isValidElement = function (object) {
+  return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
+};
+
+module.exports = ReactElement;
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