react-prop-types/lib/common.js

'use strict';

exports.__esModule = true;
exports.errMsg = errMsg;
exports.createChainableTypeChecker = createChainableTypeChecker;

function errMsg(props, propName, componentName, msgContinuation) {
  return 'Invalid prop \'' + propName + '\' of value \'' + props[propName] + '\'' + (' supplied to \'' + componentName + '\'' + msgContinuation);
}

/**
 * Create chain-able isRequired validator
 *
 * Largely copied directly from:
 *  https://github.com/facebook/react/blob/0.11-stable/src/core/ReactPropTypes.js#L94
 */

function createChainableTypeChecker(validate) {
  function checkType(isRequired, props, propName, componentName) {
    componentName = componentName || '<<anonymous>>';
    if (props[propName] == null) {
      if (isRequired) {
        return new Error('Required prop \'' + propName + '\' was not specified in \'' + componentName + '\'.');
      }
    } else {
      return validate(props, propName, componentName);
    }
  }

  var chainedCheckType = checkType.bind(null, false);
  chainedCheckType.isRequired = checkType.bind(null, true);

  return chainedCheckType;
}