no-amd.js

/**
 * @fileoverview Rule to prefer imports to AMD
 * @author Jamund Ferguson
 */

import docsUrl from '../docsUrl';

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

module.exports = {
  meta: {
    type: 'suggestion',
    docs: {
      url: docsUrl('no-amd'),
    },
    schema: [],
  },

  create(context) {
    return {
      'CallExpression': function (node) {
        if (context.getScope().type !== 'module') return;

        if (node.callee.type !== 'Identifier') return;
        if (node.callee.name !== 'require' &&
            node.callee.name !== 'define') return;

        // todo: capture define((require, module, exports) => {}) form?
        if (node.arguments.length !== 2) return;

        const modules = node.arguments[0];
        if (modules.type !== 'ArrayExpression') return;

        // todo: check second arg type? (identifier or callback)

        context.report(node, `Expected imports instead of AMD ${node.callee.name}().`);
      },
    };

  },
};