canonical/node_modules/eslint-plugin-react/lib/rules/react-in-jsx-scope.js

Canonical code style linter and formatter for JavaScript, SCSS and CSS.

/**
 * @fileoverview Prevent missing React when using JSX
 * @author Glen Mailer
 */
'use strict';

var variableUtil = require('../util/variable');
var pragmaUtil = require('../util/pragma');

// -----------------------------------------------------------------------------
// Rule Definition
// -----------------------------------------------------------------------------

module.exports = function(context) {

  var pragma = pragmaUtil.getFromContext(context);
  var NOT_DEFINED_MESSAGE = '\'{{name}}\' must be in scope when using JSX';

  return {

    JSXOpeningElement: function(node) {
      var variables = variableUtil.variablesInScope(context);
      if (variableUtil.findVariable(variables, pragma)) {
        return;
      }
      context.report(node, NOT_DEFINED_MESSAGE, {
        name: pragma
      });
    },

    BlockComment: function(node) {
      pragma = pragmaUtil.getFromNode(node) || pragma;
    }

  };

};

module.exports.schema = [];