eslint-plugin-better/rules/explicit-return.js

Avoid some language features to write better code

module.exports = function(context) {
	var functions = [];
	function enterFunction(node) {
		return functions.push(node);
	}
	function exitFunction(node) {
		return functions[functions.length - 1] === node ?
			context.report(node, 'Does not have explicit return value') :
			undefined;
	}

	return {
		'FunctionDeclaration': enterFunction,
		'FunctionExpression': enterFunction,
		'ArrowFunctionExpression': function(node){
			return node.body.type === 'BlockStatement' ?
				enterFunction(node) :
				null;
		},

		'FunctionDeclaration:exit': exitFunction,
		'FunctionExpression:exit': exitFunction,
		'ArrowFunctionExpression:exit': exitFunction,

		'ReturnStatement': function() {
			return functions.pop();
		}
	};
};