--- /dev/null
+"use strict";
+
+const isStandardSyntaxAtRule = require("../utils/isStandardSyntaxAtRule");
+const report = require("../utils/report");
+
+module.exports = function(options) {
+ options.root.walkAtRules(atRule => {
+ if (!isStandardSyntaxAtRule(atRule)) {
+ return;
+ }
+
+ checkColon(
+ `@${atRule.name}${atRule.raws.afterName || ""}${atRule.params}`,
+ atRule.name.length,
+ atRule
+ );
+ });
+
+ function checkColon(source, index, node) {
+ options.locationChecker({
+ source,
+ index,
+ err: m =>
+ report({
+ message: m,
+ node,
+ index,
+ result: options.result,
+ ruleName: options.checkedRuleName
+ }),
+ errTarget: `@${node.name}`
+ });
+ }
+};