node_modules/stylelint/lib/rules/atRuleNameSpaceChecker.js

"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 => {
        if (options.fix) {
          options.fix(node);

          return;
        }

        report({
          message: m,
          node,
          index,
          result: options.result,
          ruleName: options.checkedRuleName
        });
      },
      errTarget: `@${node.name}`
    });
  }
};