.gitignore added

[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / stylelint / lib / rules / no-duplicate-selectors / index.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/no-duplicate-selectors/index.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/no-duplicate-selectors/index.js
new file mode 100644 (file)
index 0000000..117dc37
--- /dev/null
+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/no-duplicate-selectors/index.js
@@ -0,0 +1,105 @@
+"use strict";
+
+const _ = require("lodash");
+const findAtRuleContext = require("../../utils/findAtRuleContext");
+const isKeyframeRule = require("../../utils/isKeyframeRule");
+const nodeContextLookup = require("../../utils/nodeContextLookup");
+const normalizeSelector = require("normalize-selector");
+const report = require("../../utils/report");
+const resolvedNestedSelector = require("postcss-resolve-nested-selector");
+const ruleMessages = require("../../utils/ruleMessages");
+const validateOptions = require("../../utils/validateOptions");
+
+const ruleName = "no-duplicate-selectors";
+
+const messages = ruleMessages(ruleName, {
+  rejected: (selector, firstDuplicateLine) =>
+    `Unexpected duplicate selector "${selector}", first used at line ${
+      firstDuplicateLine
+    }`
+});
+
+const rule = function(actual) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, { actual });
+    if (!validOptions) {
+      return;
+    }
+
+    // The top level of this map will be rule sources.
+    // Each source maps to another map, which maps rule parents to a set of selectors.
+    // This ensures that selectors are only checked against selectors
+    // from other rules that share the same parent and the same source.
+    const selectorContextLookup = nodeContextLookup();
+
+    root.walkRules(rule => {
+      if (isKeyframeRule(rule)) {
+        return;
+      }
+
+      const contextSelectorSet = selectorContextLookup.getContext(
+        rule,
+        findAtRuleContext(rule)
+      );
+      const resolvedSelectors = rule.selectors.reduce((result, selector) => {
+        return _.union(result, resolvedNestedSelector(selector, rule));
+      }, []);
+      const normalizedSelectorList = resolvedSelectors.map(normalizeSelector);
+      const selectorLine = rule.source.start.line;
+
+      // Complain if the same selector list occurs twice
+
+      // Sort the selectors list so that the order of the constituents
+      // doesn't matter
+      const sortedSelectorList = normalizedSelectorList
+        .slice()
+        .sort()
+        .join(",");
+      if (contextSelectorSet.has(sortedSelectorList)) {
+        // If the selector isn't nested we can use its raw value; otherwise,
+        // we have to approximate something for the message -- which is close enough
+        const isNestedSelector =
+          resolvedSelectors.join(",") !== rule.selectors.join(",");
+        const selectorForMessage = isNestedSelector
+          ? resolvedSelectors.join(", ")
+          : rule.selector;
+        const previousDuplicatePosition = contextSelectorSet.get(
+          sortedSelectorList
+        );
+
+        return report({
+          result,
+          ruleName,
+          node: rule,
+          message: messages.rejected(
+            selectorForMessage,
+            previousDuplicatePosition
+          )
+        });
+      }
+
+      contextSelectorSet.set(sortedSelectorList, selectorLine);
+
+      // Or complain if one selector list contains the same selector more than one
+      rule.selectors.forEach((selector, i) => {
+        if (
+          _.includes(
+            normalizedSelectorList.slice(0, i),
+            normalizeSelector(selector)
+          )
+        ) {
+          report({
+            result,
+            ruleName,
+            node: rule,
+            message: messages.rejected(selector, selectorLine)
+          });
+        }
+      });
+    });
+  };
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+module.exports = rule;