node_modules

1 files changed, 252 insertions, 0 deletions

diff --git a/node_modules/react/lib/ReactElementValidator.js b/node_modules/react/lib/ReactElementValidator.js
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+++ b/node_modules/react/lib/ReactElementValidator.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.
+ *
+ */
+
+/**
+ * ReactElementValidator provides a wrapper around a element factory
+ * which validates the props passed to the element. This is intended to be
+ * used only in DEV and could be replaced by a static type checker for languages
+ * that support it.
+ */
+
+'use strict';
+
+var ReactCurrentOwner = require('./ReactCurrentOwner');
+var ReactComponentTreeHook = require('./ReactComponentTreeHook');
+var ReactElement = require('./ReactElement');
+
+var checkReactTypeSpec = require('./checkReactTypeSpec');
+
+var canDefineProperty = require('./canDefineProperty');
+var getIteratorFn = require('./getIteratorFn');
+var warning = require('fbjs/lib/warning');
+
+function getDeclarationErrorAddendum() {
+  if (ReactCurrentOwner.current) {
+    var name = ReactCurrentOwner.current.getName();
+    if (name) {
+      return ' Check the render method of `' + name + '`.';
+    }
+  }
+  return '';
+}
+
+function getSourceInfoErrorAddendum(elementProps) {
+  if (elementProps !== null && elementProps !== undefined && elementProps.__source !== undefined) {
+    var source = elementProps.__source;
+    var fileName = source.fileName.replace(/^.*[\\\/]/, '');
+    var lineNumber = source.lineNumber;
+    return ' Check your code at ' + fileName + ':' + lineNumber + '.';
+  }
+  return '';
+}
+
+/**
+ * Warn if there's no key explicitly set on dynamic arrays of children or
+ * object keys are not valid. This allows us to keep track of children between
+ * updates.
+ */
+var ownerHasKeyUseWarning = {};
+
+function getCurrentComponentErrorInfo(parentType) {
+  var info = getDeclarationErrorAddendum();
+
+  if (!info) {
+    var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name;
+    if (parentName) {
+      info = ' Check the top-level render call using <' + parentName + '>.';
+    }
+  }
+  return info;
+}
+
+/**
+ * Warn if the element doesn't have an explicit key assigned to it.
+ * This element is in an array. The array could grow and shrink or be
+ * reordered. All children that haven't already been validated are required to
+ * have a "key" property assigned to it. Error statuses are cached so a warning
+ * will only be shown once.
+ *
+ * @internal
+ * @param {ReactElement} element Element that requires a key.
+ * @param {*} parentType element's parent's type.
+ */
+function validateExplicitKey(element, parentType) {
+  if (!element._store || element._store.validated || element.key != null) {
+    return;
+  }
+  element._store.validated = true;
+
+  var memoizer = ownerHasKeyUseWarning.uniqueKey || (ownerHasKeyUseWarning.uniqueKey = {});
+
+  var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);
+  if (memoizer[currentComponentErrorInfo]) {
+    return;
+  }
+  memoizer[currentComponentErrorInfo] = true;
+
+  // Usually the current owner is the offender, but if it accepts children as a
+  // property, it may be the creator of the child that's responsible for
+  // assigning it a key.
+  var childOwner = '';
+  if (element && element._owner && element._owner !== ReactCurrentOwner.current) {
+    // Give the component that originally created this child.
+    childOwner = ' It was passed a child from ' + element._owner.getName() + '.';
+  }
+
+  process.env.NODE_ENV !== 'production' ? warning(false, 'Each child in an array or iterator should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.%s', currentComponentErrorInfo, childOwner, ReactComponentTreeHook.getCurrentStackAddendum(element)) : void 0;
+}
+
+/**
+ * Ensure that every element either is passed in a static location, in an
+ * array with an explicit keys property defined, or in an object literal
+ * with valid key property.
+ *
+ * @internal
+ * @param {ReactNode} node Statically passed child of any type.
+ * @param {*} parentType node's parent's type.
+ */
+function validateChildKeys(node, parentType) {
+  if (typeof node !== 'object') {
+    return;
+  }
+  if (Array.isArray(node)) {
+    for (var i = 0; i < node.length; i++) {
+      var child = node[i];
+      if (ReactElement.isValidElement(child)) {
+        validateExplicitKey(child, parentType);
+      }
+    }
+  } else if (ReactElement.isValidElement(node)) {
+    // This element was passed in a valid location.
+    if (node._store) {
+      node._store.validated = true;
+    }
+  } else if (node) {
+    var iteratorFn = getIteratorFn(node);
+    // Entry iterators provide implicit keys.
+    if (iteratorFn) {
+      if (iteratorFn !== node.entries) {
+        var iterator = iteratorFn.call(node);
+        var step;
+        while (!(step = iterator.next()).done) {
+          if (ReactElement.isValidElement(step.value)) {
+            validateExplicitKey(step.value, parentType);
+          }
+        }
+      }
+    }
+  }
+}
+
+/**
+ * Given an element, validate that its props follow the propTypes definition,
+ * provided by the type.
+ *
+ * @param {ReactElement} element
+ */
+function validatePropTypes(element) {
+  var componentClass = element.type;
+  if (typeof componentClass !== 'function') {
+    return;
+  }
+  var name = componentClass.displayName || componentClass.name;
+  if (componentClass.propTypes) {
+    checkReactTypeSpec(componentClass.propTypes, element.props, 'prop', name, element, null);
+  }
+  if (typeof componentClass.getDefaultProps === 'function') {
+    process.env.NODE_ENV !== 'production' ? warning(componentClass.getDefaultProps.isReactClassApproved, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.') : void 0;
+  }
+}
+
+var ReactElementValidator = {
+
+  createElement: function (type, props, children) {
+    var validType = typeof type === 'string' || typeof type === 'function';
+    // We warn in this case but don't throw. We expect the element creation to
+    // succeed and there will likely be errors in render.
+    if (!validType) {
+      if (typeof type !== 'function' && typeof type !== 'string') {
+        var info = '';
+        if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
+          info += ' You likely forgot to export your component from the file ' + 'it\'s defined in.';
+        }
+
+        var sourceInfo = getSourceInfoErrorAddendum(props);
+        if (sourceInfo) {
+          info += sourceInfo;
+        } else {
+          info += getDeclarationErrorAddendum();
+        }
+
+        info += ReactComponentTreeHook.getCurrentStackAddendum();
+
+        process.env.NODE_ENV !== 'production' ? warning(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', type == null ? type : typeof type, info) : void 0;
+      }
+    }
+
+    var element = ReactElement.createElement.apply(this, arguments);
+
+    // The result can be nullish if a mock or a custom function is used.
+    // TODO: Drop this when these are no longer allowed as the type argument.
+    if (element == null) {
+      return element;
+    }
+
+    // Skip key warning if the type isn't valid since our key validation logic
+    // doesn't expect a non-string/function type and can throw confusing errors.
+    // We don't want exception behavior to differ between dev and prod.
+    // (Rendering will throw with a helpful message and as soon as the type is
+    // fixed, the key warnings will appear.)
+    if (validType) {
+      for (var i = 2; i < arguments.length; i++) {
+        validateChildKeys(arguments[i], type);
+      }
+    }
+
+    validatePropTypes(element);
+
+    return element;
+  },
+
+  createFactory: function (type) {
+    var validatedFactory = ReactElementValidator.createElement.bind(null, type);
+    // Legacy hook TODO: Warn if this is accessed
+    validatedFactory.type = type;
+
+    if (process.env.NODE_ENV !== 'production') {
+      if (canDefineProperty) {
+        Object.defineProperty(validatedFactory, 'type', {
+          enumerable: false,
+          get: function () {
+            process.env.NODE_ENV !== 'production' ? warning(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.') : void 0;
+            Object.defineProperty(this, 'type', {
+              value: type
+            });
+            return type;
+          }
+        });
+      }
+    }
+
+    return validatedFactory;
+  },
+
+  cloneElement: function (element, props, children) {
+    var newElement = ReactElement.cloneElement.apply(this, arguments);
+    for (var i = 2; i < arguments.length; i++) {
+      validateChildKeys(arguments[i], newElement.type);
+    }
+    validatePropTypes(newElement);
+    return newElement;
+  }
+
+};
+
+module.exports = ReactElementValidator;
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