Viewing github.com/facebook/react/fixtures/legacy-jsx-runtimes/react-14/cjs/react-jsx-runtime.development.js

```
/** @license React v0.14.10
```
```
 * react-jsx-runtime.development.js
```
```
 *
```

 * Copyright (c) Meta Platforms, Inc. and affiliates.

```
 *
```

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

```
 */
```
```
'use strict';
```

if (process.env.NODE_ENV !== "production") {

```
  (function() {
```
```
'use strict';
```
```
var React = require('react');
```
```
// ATTENTION
```

// When adding new symbols to this file,

// Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols'

// The Symbol used to tag the ReactElement-like types. If there is no native Symbol

// nor polyfill, then a plain number is used for performance.

```
var REACT_ELEMENT_TYPE = 0xeac7;
```
```
var REACT_PORTAL_TYPE = 0xeaca;
```
```
exports.Fragment = 0xeacb;
```
```
var REACT_STRICT_MODE_TYPE = 0xeacc;
```
```
var REACT_PROFILER_TYPE = 0xead2;
```
```
var REACT_PROVIDER_TYPE = 0xeacd;
```
```
var REACT_CONTEXT_TYPE = 0xeace;
```
```
var REACT_FORWARD_REF_TYPE = 0xead0;
```
```
var REACT_SUSPENSE_TYPE = 0xead1;
```
```
var REACT_SUSPENSE_LIST_TYPE = 0xead8;
```
```
var REACT_MEMO_TYPE = 0xead3;
```
```
var REACT_LAZY_TYPE = 0xead4;
```
```
var REACT_BLOCK_TYPE = 0xead9;
```
```
var REACT_SERVER_BLOCK_TYPE = 0xeada;
```
```
var REACT_FUNDAMENTAL_TYPE = 0xead5;
```
```
var REACT_SCOPE_TYPE = 0xead7;
```
```
var REACT_OPAQUE_ID_TYPE = 0xeae0;
```

var REACT_DEBUG_TRACING_MODE_TYPE = 0xeae1;

```
var REACT_OFFSCREEN_TYPE = 0xeae2;
```
```
var REACT_LEGACY_HIDDEN_TYPE = 0xeae3;
```

if (typeof Symbol === 'function' && Symbol.for) {

```
  var symbolFor = Symbol.for;
```

  REACT_ELEMENT_TYPE = symbolFor('react.element');

  REACT_PORTAL_TYPE = symbolFor('react.portal');

  exports.Fragment = symbolFor('react.fragment');

  REACT_STRICT_MODE_TYPE = symbolFor('react.strict_mode');

  REACT_PROFILER_TYPE = symbolFor('react.profiler');

  REACT_PROVIDER_TYPE = symbolFor('react.provider');

  REACT_CONTEXT_TYPE = symbolFor('react.context');

  REACT_FORWARD_REF_TYPE = symbolFor('react.forward_ref');

  REACT_SUSPENSE_TYPE = symbolFor('react.suspense');

  REACT_SUSPENSE_LIST_TYPE = symbolFor('react.suspense_list');

  REACT_MEMO_TYPE = symbolFor('react.memo');

  REACT_LAZY_TYPE = symbolFor('react.lazy');

  REACT_BLOCK_TYPE = symbolFor('react.block');

  REACT_SERVER_BLOCK_TYPE = symbolFor('react.server.block');

  REACT_FUNDAMENTAL_TYPE = symbolFor('react.fundamental');

  REACT_SCOPE_TYPE = symbolFor('react.scope');

  REACT_OPAQUE_ID_TYPE = symbolFor('react.opaque.id');

  REACT_DEBUG_TRACING_MODE_TYPE = symbolFor('react.debug_trace_mode');

  REACT_OFFSCREEN_TYPE = symbolFor('react.offscreen');

  REACT_LEGACY_HIDDEN_TYPE = symbolFor('react.legacy_hidden');

```
}
```

var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;

var FAUX_ITERATOR_SYMBOL = '@@iterator';

function getIteratorFn(maybeIterable) {

  if (maybeIterable === null || typeof maybeIterable !== 'object') {

```
    return null;
```
```
  }
```

  var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];

  if (typeof maybeIterator === 'function') {

```
    return maybeIterator;
```
```
  }
```
```
  return null;
```
```
}
```
```
function error(format) {
```
```
  {
```

    for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {

      args[_key2 - 1] = arguments[_key2];

```
    }
```

    printWarning('error', format, args);

```
  }
```
```
}
```

function printWarning(level, format, args) {

  // When changing this logic, you might want to also

  // update consoleWithStackDev.www.js as well.

```
  {
```
```
    var stack = '';
```
```
    if (stack !== '') {
```
```
      format += '%s';
```
```
      args = args.concat([stack]);
```
```
    }
```

    var argsWithFormat = args.map(function (item) {

```
      return '' + item;
```

    }); // Careful: RN currently depends on this prefix

    argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it

    // breaks IE9: https://github.com/facebook/react/issues/13610

    // eslint-disable-next-line react-internal/no-production-logging

    Function.prototype.apply.call(console[level], console, argsWithFormat);

```
  }
```
```
}
```

// Filter certain DOM attributes (e.g. src, href) if their values are empty strings.

var enableScopeAPI = false; // Experimental Create Event Handle API.

```
function isValidElementType(type) {
```

  if (typeof type === 'string' || typeof type === 'function') {

```
    return true;
```

  } // Note: typeof might be other than 'symbol' or 'number' (e.g. if it's a polyfill).

  if (type === exports.Fragment || type === REACT_PROFILER_TYPE || type === REACT_DEBUG_TRACING_MODE_TYPE || type === REACT_STRICT_MODE_TYPE || type === REACT_SUSPENSE_TYPE || type === REACT_SUSPENSE_LIST_TYPE || type === REACT_LEGACY_HIDDEN_TYPE || enableScopeAPI ) {

```
    return true;
```
```
  }
```

  if (typeof type === 'object' && type !== null) {

    if (type.$$typeof === REACT_LAZY_TYPE || type.$$typeof === REACT_MEMO_TYPE || type.$$typeof === REACT_PROVIDER_TYPE || type.$$typeof === REACT_CONTEXT_TYPE || type.$$typeof === REACT_FORWARD_REF_TYPE || type.$$typeof === REACT_FUNDAMENTAL_TYPE || type.$$typeof === REACT_BLOCK_TYPE || type[0] === REACT_SERVER_BLOCK_TYPE) {

```
      return true;
```
```
    }
```
```
  }
```
```
  return false;
```
```
}
```
```
var BEFORE_SLASH_RE = /^(.*)[\\\/]/;
```

function describeComponentFrame (name, source, ownerName) {

```
  var sourceInfo = '';
```
```
  if (source) {
```
```
    var path = source.fileName;
```

    var fileName = path.replace(BEFORE_SLASH_RE, '');

```
    {
```

      // In DEV, include code for a common special case:

      // prefer "folder/index.js" instead of just "index.js".

```
      if (/^index\./.test(fileName)) {
```

        var match = path.match(BEFORE_SLASH_RE);

```
        if (match) {
```

          var pathBeforeSlash = match[1];

```
          if (pathBeforeSlash) {
```

            var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');

            fileName = folderName + '/' + fileName;

```
          }
```
```
        }
```
```
      }
```
```
    }
```

    sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';

```
  } else if (ownerName) {
```

    sourceInfo = ' (created by ' + ownerName + ')';

```
  }
```

  return '\n    in ' + (name || 'Unknown') + sourceInfo;

```
}
```
```
var Resolved = 1;
```

function refineResolvedLazyComponent(lazyComponent) {

  return lazyComponent._status === Resolved ? lazyComponent._result : null;

```
}
```

function getWrappedName(outerType, innerType, wrapperName) {

  var functionName = innerType.displayName || innerType.name || '';

  return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);

```
}
```
```
function getComponentName(type) {
```
```
  if (type == null) {
```

    // Host root, text node or just invalid type.

```
    return null;
```
```
  }
```
```
  {
```

    if (typeof type.tag === 'number') {

      error('Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');

```
    }
```
```
  }
```
```
  if (typeof type === 'function') {
```

    return type.displayName || type.name || null;

```
  }
```
```
  if (typeof type === 'string') {
```
```
    return type;
```
```
  }
```
```
  switch (type) {
```
```
    case exports.Fragment:
```
```
      return 'Fragment';
```
```
    case REACT_PORTAL_TYPE:
```
```
      return 'Portal';
```
```
    case REACT_PROFILER_TYPE:
```
```
      return "Profiler";
```
```
    case REACT_STRICT_MODE_TYPE:
```
```
      return 'StrictMode';
```
```
    case REACT_SUSPENSE_TYPE:
```
```
      return 'Suspense';
```
```
    case REACT_SUSPENSE_LIST_TYPE:
```
```
      return 'SuspenseList';
```
```
  }
```
```
  if (typeof type === 'object') {
```
```
    switch (type.$$typeof) {
```
```
      case REACT_CONTEXT_TYPE:
```
```
        return 'Context.Consumer';
```
```
      case REACT_PROVIDER_TYPE:
```
```
        return 'Context.Provider';
```
```
      case REACT_FORWARD_REF_TYPE:
```

        return getWrappedName(type, type.render, 'ForwardRef');

```
      case REACT_MEMO_TYPE:
```

        return getComponentName(type.type);

```
      case REACT_BLOCK_TYPE:
```

        return getComponentName(type.render);

```
      case REACT_LAZY_TYPE:
```
```
        {
```
```
          var thenable = type;
```

          var resolvedThenable = refineResolvedLazyComponent(thenable);

```
          if (resolvedThenable) {
```

            return getComponentName(resolvedThenable);

```
          }
```
```
          break;
```
```
        }
```
```
    }
```
```
  }
```
```
  return null;
```
```
}
```
```
var loggedTypeFailures = {};
```
```
var currentlyValidatingElement = null;
```

function setCurrentlyValidatingElement(element) {

```
  {
```

    currentlyValidatingElement = element;

```
  }
```
```
}
```

function checkPropTypes(typeSpecs, values, location, componentName, element) {

```
  {
```

    // $FlowFixMe This is okay but Flow doesn't know it.

    var has = Function.call.bind(Object.prototype.hasOwnProperty);

    for (var typeSpecName in typeSpecs) {

      if (has(typeSpecs, typeSpecName)) {

        var error$1 = void 0; // Prop type validation may throw. In case they do, we don't want to

        // fail the render phase where it didn't fail before. So we log it.

        // After these have been cleaned up, we'll let them throw.

```
        try {
```

          // This is intentionally an invariant that gets caught. It's the same

          // behavior as without this statement except with a better message.

          if (typeof typeSpecs[typeSpecName] !== 'function') {

            var err = Error((componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' + 'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.' + 'This often happens because of typos such as `PropTypes.function` instead of `PropTypes.func`.');

            err.name = 'Invariant Violation';

```
            throw err;
```
```
          }
```

          error$1 = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED');

```
        } catch (ex) {
```
```
          error$1 = ex;
```
```
        }
```

        if (error$1 && !(error$1 instanceof Error)) {

          setCurrentlyValidatingElement(element);

          error('%s: type specification of %s' + ' `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error$1);

          setCurrentlyValidatingElement(null);

```
        }
```

        if (error$1 instanceof Error && !(error$1.message in loggedTypeFailures)) {

          // Only monitor this failure once because there tends to be a lot of the

```
          // same error.
```

          loggedTypeFailures[error$1.message] = true;

          setCurrentlyValidatingElement(element);

          error('Failed %s type: %s', location, error$1.message);

          setCurrentlyValidatingElement(null);

```
        }
```
```
      }
```
```
    }
```
```
  }
```
```
}
```

var ReactCurrentOwner = require('react/lib/ReactCurrentOwner');

var hasOwnProperty = Object.prototype.hasOwnProperty;

```
var RESERVED_PROPS = {
```
```
  key: true,
```
```
  ref: true,
```
```
  __self: true,
```
```
  __source: true
```
```
};
```
```
var specialPropKeyWarningShown;
```
```
var specialPropRefWarningShown;
```
```
var didWarnAboutStringRefs;
```
```
{
```
```
  didWarnAboutStringRefs = {};
```
```
}
```
```
function hasValidRef(config) {
```
```
  {
```

    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 (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;

        error('%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://reactjs.org/link/special-props)', displayName);

```
      }
```
```
    };
```

    warnAboutAccessingKey.isReactWarning = true;

    Object.defineProperty(props, 'key', {

```
      get: warnAboutAccessingKey,
```
```
      configurable: true
```
```
    });
```
```
  }
```
```
}
```

function defineRefPropWarningGetter(props, displayName) {

```
  {
```

    var warnAboutAccessingRef = function () {

      if (!specialPropRefWarningShown) {

        specialPropRefWarningShown = true;

        error('%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://reactjs.org/link/special-props)', displayName);

```
      }
```
```
    };
```

    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, instanceof check

 * will not work. Instead test $$typeof field against Symbol.for('react.element') to check

```
 * if something is a React Element.
```
```
 *
```
```
 * @param {*} type
```
```
 * @param {*} props
```
```
 * @param {*} key
```
```
 * @param {string|object} ref
```
```
 * @param {*} owner
```

 * @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.

```
 * @internal
```
```
 */
```

var ReactElement = function (type, key, ref, self, source, owner, props) {

```
  var element = {
```

    // This tag allows 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
```
```
  };
```
```
  {
```

    // 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.
```

    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
```
```
    });
```
```
    if (Object.freeze) {
```
```
      Object.freeze(element.props);
```
```
      Object.freeze(element);
```
```
    }
```
```
  }
```
```
  return element;
```
```
};
```
```
/**
```

 * https://github.com/reactjs/rfcs/pull/107

```
 * @param {*} type
```
```
 * @param {object} props
```
```
 * @param {string} key
```
```
 */
```

function jsxDEV(type, config, maybeKey, source, self) {

```
  {
```

    var propName; // Reserved names are extracted

```
    var props = {};
```
```
    var key = null;
```

    var ref = null; // Currently, key can be spread in as a prop. This causes a potential

    // issue if key is also explicitly declared (ie. <div {...props} key="Hi" />

    // or <div key="Hi" {...props} /> ). We want to deprecate key spread,

    // but as an intermediary step, we will use jsxDEV for everything except

    // <div {...props} key="Hi" />, because we aren't currently able to tell if

    // key is explicitly declared to be undefined or not.

```
    if (maybeKey !== undefined) {
```
```
      key = '' + maybeKey;
```
```
    }
```
```
    if (hasValidKey(config)) {
```
```
      key = '' + config.key;
```
```
    }
```
```
    if (hasValidRef(config)) {
```
```
      ref = config.ref;
```

    } // 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];

```
      }
```
```
    } // Resolve default props
```
```
    if (type && type.defaultProps) {
```

      var defaultProps = type.defaultProps;

```
      for (propName in defaultProps) {
```

        if (props[propName] === undefined) {

          props[propName] = defaultProps[propName];

```
        }
```
```
      }
```
```
    }
```
```
    if (key || ref) {
```

      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);

```
  }
```
```
}
```

var ReactCurrentOwner$1 = require('react/lib/ReactCurrentOwner');

function setCurrentlyValidatingElement$1(element) {

  currentlyValidatingElement = element;

```
}
```
```
var propTypesMisspellWarningShown;
```
```
{
```

  propTypesMisspellWarningShown = false;

```
}
```
```
/**
```

 * Verifies the object is a ReactElement.

 * See https://reactjs.org/docs/react-api.html#isvalidelement

```
 * @param {?object} object
```

 * @return {boolean} True if `object` is a ReactElement.

```
 * @final
```
```
 */
```
```
function isValidElement(object) {
```
```
  {
```

    return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;

```
  }
```
```
}
```

function getDeclarationErrorAddendum() {

```
  {
```
```
    if (ReactCurrentOwner$1.current) {
```

      var name = ReactCurrentOwner$1.current.getName();

```
      if (name) {
```

        return '\n\nCheck the render method of `' + name + '`.';

```
      }
```
```
    }
```
```
    return '';
```
```
  }
```
```
}
```

function getSourceInfoErrorAddendum(source) {

```
  {
```
```
    if (source !== undefined) {
```

      var fileName = source.fileName.replace(/^.*[\\\/]/, '');

      var lineNumber = source.lineNumber;

      return '\n\nCheck 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 = "\n\nCheck 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 currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);

    if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {

```
      return;
```
```
    }
```

    ownerHasKeyUseWarning[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$1.current) {

      // Give the component that originally created this child.

      childOwner = " It was passed a child from " + element._owner.getName() + ".";

```
    }
```

    setCurrentlyValidatingElement$1(element);

    error('Each child in a list should have a unique "key" prop.' + '%s%s See https://reactjs.org/link/warning-keys for more information.', currentComponentErrorInfo, childOwner);

    setCurrentlyValidatingElement$1(null);

```
  }
```
```
}
```
```
/**
```

 * 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 (isValidElement(child)) {
```

          validateExplicitKey(child, parentType);

```
        }
```
```
      }
```
```
    } else if (isValidElement(node)) {
```

      // This element was passed in a valid location.

```
      if (node._store) {
```
```
        node._store.validated = true;
```
```
      }
```
```
    } else if (node) {
```

      var iteratorFn = getIteratorFn(node);

      if (typeof iteratorFn === 'function') {

        // Entry iterators used to provide implicit keys,

        // but now we print a separate warning for them later.

        if (iteratorFn !== node.entries) {

          var iterator = iteratorFn.call(node);

```
          var step;
```

          while (!(step = iterator.next()).done) {

            if (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 type = element.type;
```

    if (type === null || type === undefined || typeof type === 'string') {

```
      return;
```
```
    }
```
```
    var propTypes;
```
```
    if (typeof type === 'function') {
```
```
      propTypes = type.propTypes;
```

    } else if (typeof type === 'object' && (type.$$typeof === REACT_FORWARD_REF_TYPE || // Note: Memo only checks outer props here.

    // Inner props are checked in the reconciler.

    type.$$typeof === REACT_MEMO_TYPE)) {

```
      propTypes = type.propTypes;
```
```
    } else {
```
```
      return;
```
```
    }
```
```
    if (propTypes) {
```

      // Intentionally inside to avoid triggering lazy initializers:

      var name = getComponentName(type);

      checkPropTypes(propTypes, element.props, 'prop', name, element);

    } else if (type.PropTypes !== undefined && !propTypesMisspellWarningShown) {

      propTypesMisspellWarningShown = true; // Intentionally inside to avoid triggering lazy initializers:

      var _name = getComponentName(type);

      error('Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', _name || 'Unknown');

```
    }
```

    if (typeof type.getDefaultProps === 'function' && !type.getDefaultProps.isReactClassApproved) {

      error('getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.');

```
    }
```
```
  }
```
```
}
```
```
/**
```

 * Given a fragment, validate that it can only be provided with fragment props

```
 * @param {ReactElement} fragment
```
```
 */
```

function validateFragmentProps(fragment) {

```
  {
```

    var keys = Object.keys(fragment.props);

    for (var i = 0; i < keys.length; i++) {

```
      var key = keys[i];
```

      if (key !== 'children' && key !== 'key') {

        setCurrentlyValidatingElement$1(fragment);

        error('Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.', key);

        setCurrentlyValidatingElement$1(null);

```
        break;
```
```
      }
```
```
    }
```
```
    if (fragment.ref !== null) {
```

      setCurrentlyValidatingElement$1(fragment);

      error('Invalid attribute `ref` supplied to `React.Fragment`.');

      setCurrentlyValidatingElement$1(null);

```
    }
```
```
  }
```
```
}
```

function jsxWithValidation(type, props, key, isStaticChildren, source, self) {

```
  {
```

    var validType = isValidElementType(type); // 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) {
```
```
      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, or you might have mixed up default and named imports.";

```
      }
```

      var sourceInfo = getSourceInfoErrorAddendum(source);

```
      if (sourceInfo) {
```
```
        info += sourceInfo;
```
```
      } else {
```

        info += getDeclarationErrorAddendum();

```
      }
```
```
      var typeString;
```
```
      if (type === null) {
```
```
        typeString = 'null';
```

      } else if (Array.isArray(type)) {

```
        typeString = 'array';
```

      } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {

        typeString = "<" + (getComponentName(type.type) || 'Unknown') + " />";

        info = ' Did you accidentally export a JSX literal instead of a component?';

```
      } else {
```
```
        typeString = typeof type;
```
```
      }
```

      error('React.jsx: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);

```
    }
```

    var element = jsxDEV(type, props, key, source, self); // 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) {
```
```
      var children = props.children;
```
```
      if (children !== undefined) {
```
```
        if (isStaticChildren) {
```

          if (Array.isArray(children)) {

            for (var i = 0; i < children.length; i++) {

              validateChildKeys(children[i], type);

```
            }
```
```
            if (Object.freeze) {
```
```
              Object.freeze(children);
```
```
            }
```
```
          } else {
```

            error('React.jsx: Static children should always be an array. ' + 'You are likely explicitly calling React.jsxs or React.jsxDEV. ' + 'Use the Babel transform instead.');

```
          }
```
```
        } else {
```

          validateChildKeys(children, type);

```
        }
```
```
      }
```
```
    }
```
```
    if (type === exports.Fragment) {
```
```
      validateFragmentProps(element);
```
```
    } else {
```
```
      validatePropTypes(element);
```
```
    }
```
```
    return element;
```
```
  }
```

} // These two functions exist to still get child warnings in dev

// even with the prod transform. This means that jsxDEV is purely

// opt-in behavior for better messages but that we won't stop

// giving you warnings if you use production apis.

function jsxWithValidationStatic(type, props, key) {

```
  {
```

    return jsxWithValidation(type, props, key, true);

```
  }
```
```
}
```

function jsxWithValidationDynamic(type, props, key) {

```
  {
```

    return jsxWithValidation(type, props, key, false);

```
  }
```
```
}
```

var jsx =  jsxWithValidationDynamic ; // we may want to special case jsxs internally to take advantage of static children.

// for now we can ship identical prod functions

```
var jsxs =  jsxWithValidationStatic ;
```
```
exports.jsx = jsx;
```
```
exports.jsxs = jsxs;
```
```
  })();
```
```
}
```