first commit

node_modules/stylelint/lib/rules/custom-property-empty-line-before/index.mjs

@@ -0,0 +1,137 @@
+import { isAtRule, isDeclaration, isRule } from '../../utils/typeGuards.mjs';
+import blockString from '../../utils/blockString.mjs';
+import fixEmptyLinesBefore from '../../utils/fixEmptyLinesBefore.mjs';
+import getPreviousNonSharedLineCommentNode from '../../utils/getPreviousNonSharedLineCommentNode.mjs';
+import hasEmptyLine from '../../utils/hasEmptyLine.mjs';
+import isAfterComment from '../../utils/isAfterComment.mjs';
+import isCustomProperty from '../../utils/isCustomProperty.mjs';
+import isFirstNested from '../../utils/isFirstNested.mjs';
+import isSingleLineString from '../../utils/isSingleLineString.mjs';
+import isStandardSyntaxDeclaration from '../../utils/isStandardSyntaxDeclaration.mjs';
+import optionsMatches from '../../utils/optionsMatches.mjs';
+import report from '../../utils/report.mjs';
+import ruleMessages from '../../utils/ruleMessages.mjs';
+import validateOptions from '../../utils/validateOptions.mjs';
+
+const ruleName = 'custom-property-empty-line-before';
+
+const messages = ruleMessages(ruleName, {
+	expected: 'Expected empty line before custom property',
+	rejected: 'Unexpected empty line before custom property',
+});
+
+const meta = {
+	url: 'https://stylelint.io/user-guide/rules/custom-property-empty-line-before',
+	fixable: true,
+};
+
+/** @type {import('stylelint').CoreRules[ruleName]} */
+const rule = (primary, secondaryOptions, context) => {
+	return (root, result) => {
+		const validOptions = validateOptions(
+			result,
+			ruleName,
+			{
+				actual: primary,
+				possible: ['always', 'never'],
+			},
+			{
+				actual: secondaryOptions,
+				possible: {
+					except: ['first-nested', 'after-comment', 'after-custom-property'],
+					ignore: ['after-comment', 'first-nested', 'inside-single-line-block'],
+				},
+				optional: true,
+			},
+		);
+
+		if (!validOptions) {
+			return;
+		}
+
+		root.walkDecls((decl) => {
+			const prop = decl.prop;
+			const parent = decl.parent;
+
+			if (!isStandardSyntaxDeclaration(decl)) {
+				return;
+			}
+
+			if (!isCustomProperty(prop)) {
+				return;
+			}
+
+			// Optionally ignore the node if a comment precedes it
+			if (optionsMatches(secondaryOptions, 'ignore', 'after-comment') && isAfterComment(decl)) {
+				return;
+			}
+
+			// Optionally ignore the node if it is the first nested
+			if (optionsMatches(secondaryOptions, 'ignore', 'first-nested') && isFirstNested(decl)) {
+				return;
+			}
+
+			// Optionally ignore nodes inside single-line blocks
+			if (
+				optionsMatches(secondaryOptions, 'ignore', 'inside-single-line-block') &&
+				parent != null &&
+				(isAtRule(parent) || isRule(parent)) &&
+				isSingleLineString(blockString(parent))
+			) {
+				return;
+			}
+
+			let expectEmptyLineBefore = primary === 'always';
+
+			// Optionally reverse the expectation if any exceptions apply
+			if (
+				(optionsMatches(secondaryOptions, 'except', 'first-nested') && isFirstNested(decl)) ||
+				(optionsMatches(secondaryOptions, 'except', 'after-comment') && isAfterComment(decl)) ||
+				(optionsMatches(secondaryOptions, 'except', 'after-custom-property') &&
+					isAfterCustomProperty(decl))
+			) {
+				expectEmptyLineBefore = !expectEmptyLineBefore;
+			}
+
+			const hasEmptyLineBefore = hasEmptyLine(decl.raws.before);
+
+			// Return if the expectation is met
+			if (expectEmptyLineBefore === hasEmptyLineBefore) {
+				return;
+			}
+
+			const message = expectEmptyLineBefore ? messages.expected : messages.rejected;
+			const action = expectEmptyLineBefore ? 'add' : 'remove';
+
+			// Fix
+			const fix = () =>
+				fixEmptyLinesBefore({
+					node: decl,
+					newline: context.newline,
+					action,
+				});
+
+			report({
+				message,
+				node: decl,
+				result,
+				ruleName,
+				fix,
+			});
+		});
+	};
+};
+
+/**
+ * @param {import('postcss').Declaration} decl
+ */
+function isAfterCustomProperty(decl) {
+	const prevNode = getPreviousNonSharedLineCommentNode(decl);
+
+	return prevNode != null && isDeclaration(prevNode) && isCustomProperty(prevNode.prop);
+}
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+rule.meta = meta;
+export default rule;