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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / stylelint / lib / rules / selector-max-compound-selectors / index.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/selector-max-compound-selectors/index.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/selector-max-compound-selectors/index.js
new file mode 100644 (file)
index 0000000..fcd64f8
--- /dev/null
+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/selector-max-compound-selectors/index.js
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+"use strict";
+
+const isStandardSyntaxRule = require("../../utils/isStandardSyntaxRule");
+const isStandardSyntaxSelector = require("../../utils/isStandardSyntaxSelector");
+const parseSelector = require("../../utils/parseSelector");
+const report = require("../../utils/report");
+const resolvedNestedSelector = require("postcss-resolve-nested-selector");
+const ruleMessages = require("../../utils/ruleMessages");
+const validateOptions = require("../../utils/validateOptions");
+
+const ruleName = "selector-max-compound-selectors";
+
+const messages = ruleMessages(ruleName, {
+  expected: (selector, max) =>
+    `Expected "${selector}" to have no more than ${max} compound ${
+      max === 1 ? "selector" : "selectors"
+    }`
+});
+
+const rule = function(max) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, {
+      actual: max,
+      possible: [
+        function(max) {
+          return typeof max === "number" && max > 0;
+        }
+      ]
+    });
+    if (!validOptions) {
+      return;
+    }
+
+    // Finds actual selectors in selectorNode object and checks them
+    function checkSelector(selectorNode, rule) {
+      let compoundCount = 1;
+
+      selectorNode.each(childNode => {
+        // Only traverse inside actual selectors and :not()
+        if (childNode.type === "selector" || childNode.value === ":not") {
+          checkSelector(childNode, rule);
+        }
+
+        // Compound selectors are separated by combinators, so increase count when meeting one
+        if (childNode.type === "combinator") {
+          compoundCount++;
+        }
+      });
+
+      if (
+        selectorNode.type !== "root" &&
+        selectorNode.type !== "pseudo" &&
+        compoundCount > max
+      ) {
+        report({
+          ruleName,
+          result,
+          node: rule,
+          message: messages.expected(selectorNode, max),
+          word: selectorNode
+        });
+      }
+    }
+
+    root.walkRules(rule => {
+      if (!isStandardSyntaxRule(rule)) {
+        return;
+      }
+      if (!isStandardSyntaxSelector(rule.selector)) {
+        return;
+      }
+
+      // Using `rule.selectors` gets us each selector if there is a comma separated set
+      rule.selectors.forEach(selector => {
+        resolvedNestedSelector(selector, rule).forEach(resolvedSelector => {
+          // Process each resolved selector with `checkSelector` via postcss-selector-parser
+          parseSelector(resolvedSelector, result, rule, s =>
+            checkSelector(s, rule)
+          );
+        });
+      });
+    });
+  };
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+module.exports = rule;