| "use strict"; |
| |
| const _ = require("lodash"); |
| const beforeBlockString = require("../../utils/beforeBlockString"); |
| const hasEmptyBlock = require("../../utils/hasEmptyBlock"); |
| const optionsMatches = require("../../utils/optionsMatches"); |
| const report = require("../../utils/report"); |
| const ruleMessages = require("../../utils/ruleMessages"); |
| const validateOptions = require("../../utils/validateOptions"); |
| |
| const ruleName = "block-no-empty"; |
| |
| const messages = ruleMessages(ruleName, { |
| rejected: "Unexpected empty block" |
| }); |
| |
| const rule = function(primary, options = {}) { |
| return (root, result) => { |
| const validOptions = validateOptions( |
| result, |
| ruleName, |
| { |
| actual: primary, |
| possible: _.isBoolean |
| }, |
| { |
| actual: options, |
| possible: { |
| ignore: ["comments"] |
| }, |
| optional: true |
| } |
| ); |
| |
| if (!validOptions) { |
| return; |
| } |
| |
| const ignoreComments = optionsMatches(options, "ignore", "comments"); |
| |
| // Check both kinds of statements: rules and at-rules |
| root.walkRules(check); |
| root.walkAtRules(check); |
| |
| function check(statement) { |
| if (!hasEmptyBlock(statement) && !ignoreComments) { |
| return; |
| } |
| |
| const hasCommentsOnly = statement.nodes.every( |
| node => node.type === "comment" |
| ); |
| |
| if (!hasCommentsOnly) { |
| return; |
| } |
| |
| let index = beforeBlockString(statement, { noRawBefore: true }).length; |
| |
| // For empty blocks when using SugarSS parser |
| if (statement.raws.between === undefined) { |
| index--; |
| } |
| |
| report({ |
| message: messages.rejected, |
| node: statement, |
| index, |
| result, |
| ruleName |
| }); |
| } |
| }; |
| }; |
| |
| rule.ruleName = ruleName; |
| rule.messages = messages; |
| module.exports = rule; |