react-native/Libraries/ReactNative/verifyPropTypes.js

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/**
* Copyright (c) 2015-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.
*
* @providesModule verifyPropTypes
* @flow
*/
'use strict';
var ReactNativeStyleAttributes = require('ReactNativeStyleAttributes');
export type ComponentInterface = ReactClass<any> | {
name?: string,
displayName?: string,
propTypes: Object,
};
function verifyPropTypes(
componentInterface: ComponentInterface,
viewConfig: Object,
nativePropsToIgnore?: ?Object
) {
if (!viewConfig) {
return; // This happens for UnimplementedView.
}
var componentName =
componentInterface.displayName ||
componentInterface.name ||
'unknown';
if (!componentInterface.propTypes) {
throw new Error(
'`' + componentName + '` has no propTypes defined`'
);
}
var nativeProps = viewConfig.NativeProps;
for (var prop in nativeProps) {
if (!componentInterface.propTypes[prop] &&
!ReactNativeStyleAttributes[prop] &&
(!nativePropsToIgnore || !nativePropsToIgnore[prop])) {
var message;
if (componentInterface.propTypes.hasOwnProperty(prop)) {
message = '`' + componentName + '` has incorrectly defined propType for native prop `' +
viewConfig.uiViewClassName + '.' + prop + '` of native type `' + nativeProps[prop];
} else {
message = '`' + componentName + '` has no propType for native prop `' +
viewConfig.uiViewClassName + '.' + prop + '` of native type `' +
nativeProps[prop] + '`';
}
message += '\nIf you haven\'t changed this prop yourself, this usually means that ' +
'your versions of the native code and JavaScript code are out of sync. Updating both ' +
'should make this error go away.';
throw new Error(message);
}
}
}
module.exports = verifyPropTypes;