--- /dev/null
+"use strict";
+
+const beforeBlockString = require("../../utils/beforeBlockString");
+const hasEmptyBlock = require("../../utils/hasEmptyBlock");
+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(actual) {
+ return (root, result) => {
+ const validOptions = validateOptions(result, ruleName, { actual });
+ if (!validOptions) {
+ return;
+ }
+
+ // Check both kinds of statements: rules and at-rules
+ root.walkRules(check);
+ root.walkAtRules(check);
+
+ function check(statement) {
+ if (!hasEmptyBlock(statement)) {
+ 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;