first commit

node_modules/stylelint/lib/formatters/preprocessWarnings.mjs

@@ -0,0 +1,74 @@
+import { DEFAULT_SEVERITY, SEVERITY_ERROR } from '../constants.mjs';
+
+/** @import {LintResult} from 'stylelint' */
+/** @typedef {LintResult['parseErrors'][0]} ParseError */
+/** @typedef {LintResult['warnings'][0]} Warning */
+/** @typedef {Warning['severity']} Severity */
+
+/**
+ * Preprocess warnings in a given lint result.
+ * Note that this function has a side-effect.
+ *
+ * @param {LintResult} result
+ * @returns {LintResult}
+ */
+export default function preprocessWarnings(result) {
+	for (const error of result.parseErrors || []) {
+		result.warnings.push(parseErrorToWarning(error));
+	}
+
+	for (const warning of result.warnings) {
+		warning.severity = normalizeSeverity(warning);
+	}
+
+	result.warnings.sort(byLocationOrder);
+
+	return result;
+}
+
+/**
+ * @param {ParseError} error
+ * @returns {Warning}
+ */
+function parseErrorToWarning(error) {
+	return {
+		line: error.line,
+		column: error.column,
+		rule: error.stylelintType,
+		severity: SEVERITY_ERROR,
+		text: `${error.text} (${error.stylelintType})`,
+	};
+}
+
+/**
+ * @param {Warning} warning
+ * @returns {Severity}
+ */
+function normalizeSeverity(warning) {
+	// NOTE: Plugins may add a warning without severity, for example,
+	// by directly using the PostCSS `Result#warn()` API.
+	return warning.severity || DEFAULT_SEVERITY;
+}
+
+/**
+ * @param {Warning} a
+ * @param {Warning} b
+ * @returns {number}
+ */
+function byLocationOrder(a, b) {
+	// positionless first
+	if (!a.line && b.line) return -1;
+
+	// positionless first
+	if (a.line && !b.line) return 1;
+
+	if (a.line < b.line) return -1;
+
+	if (a.line > b.line) return 1;
+
+	if (a.column < b.column) return -1;
+
+	if (a.column > b.column) return 1;
+
+	return 0;
+}