text: /**
   * @fileoverview Prevent usage of the return value of React.render
   * @author Dustan Kasten
   */
  'use strict';
  
  const versionUtil = require('../util/version');
  const docsUrl = require('../util/docsUrl');
  
  // ------------------------------------------------------------------------------
  // Rule Definition
  // ------------------------------------------------------------------------------
  
  module.exports = {
    meta: {
      docs: {
        description: 'Prevent usage of the return value of React.render',
        category: 'Best Practices',
        recommended: true,
        url: docsUrl('no-render-return-value')
      },
      schema: []
    },
  
    create: function(context) {
      // --------------------------------------------------------------------------
      // Public
      // --------------------------------------------------------------------------
  
      return {
  
        CallExpression: function(node) {
          const callee = node.callee;
          const parent = node.parent;
          if (callee.type !== 'MemberExpression') {
            return;
          }
  
          let calleeObjectName = /^ReactDOM$/;
          if (versionUtil.testReactVersion(context, '15.0.0')) {
            calleeObjectName = /^ReactDOM$/;
          } else if (versionUtil.testReactVersion(context, '0.14.0')) {
            calleeObjectName = /^React(DOM)?$/;
          } else if (versionUtil.testReactVersion(context, '0.13.0')) {
            calleeObjectName = /^React$/;
          }
  
          if (
            callee.object.type !== 'Identifier' ||
            !calleeObjectName.test(callee.object.name) ||
            callee.property.name !== 'render'
          ) {
            return;
          }
  
          if (
            parent.type === 'VariableDeclarator' ||
            parent.type === 'Property' ||
            parent.type === 'ReturnStatement' ||
            parent.type === 'ArrowFunctionExpression'
          ) {
            context.report({
              node: callee,
              message: `Do not depend on the return value from ${callee.object.name}.render`
            });
          }
        }
      };
    }
  };
  