eslint-plugin-lodash/lib/rules/prefer-thru.js

Lodash specific linting rules for ESLint

/**
 * @fileoverview Rule to check if there's a method in the chain start that can be in the chain
 */
'use strict';

/**
 * @fileoverview Rule to check if there's a method in the chain start that can be in the chain
 */
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------

module.exports = {
    create: function create(context) {
        var _require = require('../util/lodashUtil');

        var isLodashChainStart = _require.isLodashChainStart;
        var getLodashImportVisitors = _require.getLodashImportVisitors;

        var _require$getSettings = require('../util/settingsUtil').getSettings(context);

        var pragma = _require$getSettings.pragma;

        var _require2 = require('../util/ruleUtil');

        var combineVisitorObjects = _require2.combineVisitorObjects;

        function isSingleArgumentFunctionCall(node) {
            return node && node.type === 'CallExpression' && node.arguments.length === 1 && node.arguments[0].type !== 'Literal';
        }

        return combineVisitorObjects({
            CallExpression: function CallExpression(node) {
                if (isLodashChainStart(node, pragma, context) && isSingleArgumentFunctionCall(node.arguments[0])) {
                    context.report(node, 'Prefer using thru instead of function call in chain start.');
                }
            }
        }, getLodashImportVisitors(context));
    }
};